- Linux-kselftest-mirror - lists.linaro.org

[PATCH 0/2] KVM: PPC: support kvm selftests

by Nicholas Piggin

Hi, This series adds initial KVM selftests support for powerpc (64-bit, BookS). It spans 3 maintainers but it does not really affect arch/powerpc, and it is well contained in selftests code, just touches some makefiles and a tiny bit headers so conflicts should be unlikely and trivial. I guess Paolo is the best point to merge these, if no comments or objections? Thanks, Nick Nicholas Piggin (2): KVM: PPC: Add kvm selftests support for powerpc KVM: PPC: Add basic framework tests for kvm selftests tools/testing/selftests/kvm/Makefile | 14 + .../selftests/kvm/include/kvm_util_base.h | 13 + .../selftests/kvm/include/powerpc/hcall.h | 22 ++ .../selftests/kvm/include/powerpc/processor.h | 13 + tools/testing/selftests/kvm/lib/kvm_util.c | 10 + .../testing/selftests/kvm/lib/powerpc/hcall.c | 45 +++ .../selftests/kvm/lib/powerpc/processor.c | 355 ++++++++++++++++++ .../testing/selftests/kvm/lib/powerpc/ucall.c | 30 ++ .../testing/selftests/kvm/powerpc/null_test.c | 186 +++++++++ .../selftests/kvm/powerpc/rtas_hcall.c | 146 +++++++ 10 files changed, 834 insertions(+) create mode 100644 tools/testing/selftests/kvm/include/powerpc/hcall.h create mode 100644 tools/testing/selftests/kvm/include/powerpc/processor.h create mode 100644 tools/testing/selftests/kvm/lib/powerpc/hcall.c create mode 100644 tools/testing/selftests/kvm/lib/powerpc/processor.c create mode 100644 tools/testing/selftests/kvm/lib/powerpc/ucall.c create mode 100644 tools/testing/selftests/kvm/powerpc/null_test.c create mode 100644 tools/testing/selftests/kvm/powerpc/rtas_hcall.c -- 2.37.2

2 years, 1 month

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[PATCH bpf-next 0/3] Add FOU support for externally controlled ipip devices

by Christian Ehrig

This patch set adds support for using FOU or GUE encapsulation with an ipip device operating in collect-metadata mode and a set of kfuncs for controlling encap parameters exposed to a BPF tc-hook. BPF tc-hooks allow us to read tunnel metadata (like remote IP addresses) in the ingress path of an externally controlled tunnel interface via the bpf_skb_get_tunnel_{key,opt} bpf-helpers. Packets can then be redirected to the same or a different externally controlled tunnel interface by overwriting metadata via the bpf_skb_set_tunnel_{key,opt} helpers and a call to bpf_redirect. This enables us to redirect packets between tunnel interfaces - and potentially change the encapsulation type - using only a single BPF program. Today this approach works fine for a couple of tunnel combinations. For example: redirecting packets between Geneve and GRE interfaces or GRE and plain ipip interfaces. However, redirecting using FOU or GUE is not supported today. The ip_tunnel module does not allow us to egress packets using additional UDP encapsulation from an ipip device in collect-metadata mode. Patch 1 lifts this restriction by adding a struct ip_tunnel_encap to the tunnel metadata. It can be filled by a new BPF kfunc introduced in Patch 2 and evaluated by the ip_tunnel egress path. This will allow us to use FOU and GUE encap with externally controlled ipip devices. Patch 2 introduces two new BPF kfuncs: bpf_skb_{set,get}_fou_encap. These helpers can be used to set and get UDP encap parameters from the BPF tc-hook doing the packet redirect. Patch 3 adds BPF tunnel selftests using the two kfuncs. Christian Ehrig (3): ipip,ip_tunnel,sit: Add FOU support for externally controlled ipip devices bpf,fou: Add bpf_skb_{set,get}_fou_encap kfuncs selftests/bpf: Test FOU kfuncs for externally controlled ipip devices include/net/fou.h | 2 + include/net/ip_tunnels.h | 27 ++-- net/ipv4/Makefile | 2 +- net/ipv4/fou_bpf.c | 118 ++++++++++++++++++ net/ipv4/fou_core.c | 5 + net/ipv4/ip_tunnel.c | 22 +++- net/ipv4/ipip.c | 1 + net/ipv6/sit.c | 2 +- .../selftests/bpf/progs/test_tunnel_kern.c | 117 +++++++++++++++++ tools/testing/selftests/bpf/test_tunnel.sh | 81 ++++++++++++ 10 files changed, 360 insertions(+), 17 deletions(-) create mode 100644 net/ipv4/fou_bpf.c -- 2.39.2

2 years, 1 month

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[PATCH v5 0/8] Support ROHM BU27034 ALS sensor

by Matti Vaittinen

Support ROHM BU27034 ALS sensor This series adds support for ROHM BU27034 Ambient Light Sensor. The BU27034 has configurable gain and measurement (integration) time settings. Both of these have inversely proportional relation to the sensor's intensity channel scale. Many users only set the scale, which means that many drivers attempt to 'guess' the best gain+time combination to meet the scale. Usually this is the biggest integration time which allows setting the requested scale. Typically, increasing the integration time has better accuracy than increasing the gain, which often amplifies the noise as well as the real signal. However, there may be cases where more responsive sensors are needed. So, in some cases the longest integration times may not be what the user prefers. The driver has no way of knowing this. Hence, the approach taken by this series is to allow user to set both the scale and the integration time with following logic: 1. When scale is set, the existing integration time is tried to be maintained as a first priority. 1a) If the requested scale can't be met by current time, then also other time + gain combinations are searched. If scale can be met by some other integration time, then the new time may be applied. If the time setting is common for all channels, then also other channels must be able to maintain their scale with this new time (by changing their gain). The new times are scanned in the order of preference (typically the longest times first). 1b) If the requested scale can be met using current time, then only the gain for the channel is changed. 2. When the integration time change - scale is tried to be maintained. When integration time change is requested also gain for all impacted channels is adjusted so that the scale is not changed, or is chaned as little as possible. This is different from the RFCv1 where the request was rejected if suitable gain couldn't be found for some channel(s). This logic is simple. When total gain (either caused by time or hw-gain) is doubled, the scale gets halved. Also, the supported times are given a 'multiplier' value which tells how much they increase the total gain. However, when I wrote this logic in bu27034 driver, I made quite a few errors on the way - and driver got pretty big. As I am writing drivers for two other sensors (RGB C/IR + flicker BU27010 and RGB C/IR BU27008) with similar gain-time-scale logic I thought that adding common helpers for these computations might be wise. I hope this way all the bugs will be concentrated in one place and not in every individual driver ;) Hence, this series also intriduces IIO gain-time-scale helpers (abbreviated as gts-helpers) + a couple of KUnit tests for the most hairy parts. Speaking of which - testing the devm interfaces requires a 'dummy device'. There were neat helpers in DRM tests for creating and freeing such a device. This series moves those helpers to more generic location. What is worth noting is that there is something similar ongoing in the CCF territory: https://lore.kernel.org/all/20230302013822.1808711-1-sboyd@kernel.org/ These efforts should be somehow coordinated in order to avoid any avoid conflicts. Finally, these added helpers do provide some value also for drivers which only: a) allow gain change or b) allow changing both the time and gain while trying to maintain the scale. For a) we provide the gain - selector (register value) table format + selector to gain look-ups, gain <-> scale conversions and the available scales helpers. For latter case we also provide the time-tables, and actually all the APIs should be usable by setting the time multiplier to 1. (not testeted thoroughly though). The patch 1/8 introduces the helpers for creating/dropping a test device for devm-tests. It can be applied alone. The patches 2/8 (convert DRM tests to use new helper) depends on patch 1/8 but is othervice not part of this series. It can be applied to DRM tree after the dependency to 1/8 is handled. The patch 5/8 (IIO GTS tests) also depends on the patch 1/8 (and also other patches in the series). Rest of the series should be Ok to be applied with/without the patches 1/8, 2/8, 5/8 - although the 5/8 would be "nice to have" together with the rest of the series for the testability reasons. Revision history: v4 => v5: Mostly fixes to review comments from Andy and Jonathan. - more accurate change-log in individual patches - copy code from DRM test helper instead of moving it to simplify merging - document all exported GTS helpers. - inline a few GTS helpers - use again Milli lux for the bu27034 with RAW IIO_LIGHT channel and scale - Fix bug from added in v4 bu27034 time setting. v3 => v4: (Still mostly fixes to review comments from Andy and Jonathan) - more accurate change-log in individual patches - dt-binding and maintainer patches unchanged. - dropped unused helpers and converted ones currently used only internally to static. - extracted "dummy device" creation helpers from DRM tests. - added tests for devm APIs - dropped scale for PROCESSED channel in BU27034 and converted mLux values to luxes - dropped channel 2 GAIN setting which can't be done due to HW limitations. v2 => v3: (Mostly fixes to review comments from Andy and Jonathan) - dt-binding and maintainer patches unchanged. - iio-gts-helper tests: Use namespaces - iio-gts-helpers + bu27034 plenty of changes. See more comprehensive changelog in individual patches. RFCv1 => v2: dt-bindings: - Fix binding file name and id by using comma instead of a hyphen to separate the vendor and part names. gts-helpers: - fix include guardian - Improve kernel doc for iio_init_iio_gts. - Add iio_gts_scale_to_total_gain - Add iio_gts_total_gain_to_scale - Fix review comments from Jonathan - add documentation to few functions - replace 0xffffffffffffffffLLU by U64_MAX - some styling fixes - drop unnecessary NULL checks - order function arguments by in / out purpose - drop GAIN_SCALE_ITIME_MS() - Add helpers for available scales and times - Rename to iio-gts-helpers gts-tests: - add tests for available scales/times helpers - adapt to renamed iio-gts-helpers.h header bu27034-driver: - (really) protect read-only registers - fix get and set gain - buffered mode - Protect the whole sequences including meas_en/meas_dis to avoid messing up the enable / disable order - typofixes / doc improvements - change dropped GAIN_SCALE_ITIME_MS() to GAIN_SCALE_ITIME_US() - use more accurate scale for lux channel (milli lux) - provide available scales / integration times (using helpers). - adapt to renamed iio-gts-helpers.h file - bu27034 - longer lines in Kconfig - Drop bu27034_meas_en and bu27034_meas_dis wrappers. - Change device-name from bu27034-als to bu27034 MAINTAINERS: - Add iio-list --- Matti Vaittinen (8): drivers: kunit: Generic helpers for test device creation drm/tests: helpers: Use generic helpers dt-bindings: iio: light: Support ROHM BU27034 iio: light: Add gain-time-scale helpers iio: test: test gain-time-scale helpers MAINTAINERS: Add IIO gain-time-scale helpers iio: light: ROHM BU27034 Ambient Light Sensor MAINTAINERS: Add ROHM BU27034 .../bindings/iio/light/rohm,bu27034.yaml | 46 + MAINTAINERS | 14 + drivers/base/test/Kconfig | 5 + drivers/base/test/Makefile | 2 + drivers/base/test/test_kunit_device.c | 83 + drivers/gpu/drm/Kconfig | 2 + .../gpu/drm/tests/drm_client_modeset_test.c | 5 +- drivers/gpu/drm/tests/drm_kunit_helpers.c | 69 - drivers/gpu/drm/tests/drm_managed_test.c | 5 +- drivers/gpu/drm/tests/drm_modes_test.c | 5 +- drivers/gpu/drm/tests/drm_probe_helper_test.c | 5 +- drivers/gpu/drm/vc4/Kconfig | 1 + drivers/gpu/drm/vc4/tests/vc4_mock.c | 3 +- .../gpu/drm/vc4/tests/vc4_test_pv_muxing.c | 9 +- drivers/iio/Kconfig | 3 + drivers/iio/Makefile | 1 + drivers/iio/industrialio-gts-helper.c | 1064 ++++++++++++ drivers/iio/light/Kconfig | 14 + drivers/iio/light/Makefile | 1 + drivers/iio/light/rohm-bu27034.c | 1482 +++++++++++++++++ drivers/iio/test/Kconfig | 14 + drivers/iio/test/Makefile | 1 + drivers/iio/test/iio-test-gts.c | 542 ++++++ include/drm/drm_kunit_helpers.h | 7 +- include/kunit/platform_device.h | 13 + include/linux/iio/iio-gts-helper.h | 206 +++ 26 files changed, 3515 insertions(+), 87 deletions(-) create mode 100644 Documentation/devicetree/bindings/iio/light/rohm,bu27034.yaml create mode 100644 drivers/base/test/test_kunit_device.c create mode 100644 drivers/iio/industrialio-gts-helper.c create mode 100644 drivers/iio/light/rohm-bu27034.c create mode 100644 drivers/iio/test/iio-test-gts.c create mode 100644 include/kunit/platform_device.h create mode 100644 include/linux/iio/iio-gts-helper.h base-commit: eeac8ede17557680855031c6f305ece2378af326 -- 2.39.2 -- Matti Vaittinen, Linux device drivers ROHM Semiconductors, Finland SWDC Kiviharjunlenkki 1E 90220 OULU FINLAND ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~ Simon says - in Latin please. ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~ Thanks to Simon Glass for the translation =]

2 years, 1 month

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[PATCH AUTOSEL 6.1 06/24] selftests/bpf: Fix progs/find_vma_fail1.c build error.

by Sasha Levin

From: Alexei Starovoitov <ast(a)kernel.org> [ Upstream commit 32513d40d908b267508d37994753d9bd1600914b ] The commit 11e456cae91e ("selftests/bpf: Fix compilation errors: Assign a value to a constant") fixed the issue cleanly in bpf-next. This is an alternative fix in bpf tree to avoid merge conflict between bpf and bpf-next. Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/bpf/progs/find_vma_fail1.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/bpf/progs/find_vma_fail1.c b/tools/testing/selftests/bpf/progs/find_vma_fail1.c index b3b326b8e2d1c..6dab9cffda132 100644 --- a/tools/testing/selftests/bpf/progs/find_vma_fail1.c +++ b/tools/testing/selftests/bpf/progs/find_vma_fail1.c @@ -2,6 +2,7 @@ /* Copyright (c) 2021 Facebook */ #include "vmlinux.h" #include <bpf/bpf_helpers.h> +#define vm_flags vm_start char _license[] SEC("license") = "GPL"; -- 2.39.2

2 years, 1 month

1
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[PATCH AUTOSEL 6.2 07/25] selftests/bpf: Fix progs/find_vma_fail1.c build error.

by Sasha Levin

From: Alexei Starovoitov <ast(a)kernel.org> [ Upstream commit 32513d40d908b267508d37994753d9bd1600914b ] The commit 11e456cae91e ("selftests/bpf: Fix compilation errors: Assign a value to a constant") fixed the issue cleanly in bpf-next. This is an alternative fix in bpf tree to avoid merge conflict between bpf and bpf-next. Signed-off-by: Alexei Starovoitov <ast(a)kernel.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> --- tools/testing/selftests/bpf/progs/find_vma_fail1.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/bpf/progs/find_vma_fail1.c b/tools/testing/selftests/bpf/progs/find_vma_fail1.c index b3b326b8e2d1c..6dab9cffda132 100644 --- a/tools/testing/selftests/bpf/progs/find_vma_fail1.c +++ b/tools/testing/selftests/bpf/progs/find_vma_fail1.c @@ -2,6 +2,7 @@ /* Copyright (c) 2021 Facebook */ #include "vmlinux.h" #include <bpf/bpf_helpers.h> +#define vm_flags vm_start char _license[] SEC("license") = "GPL"; -- 2.39.2

2 years, 1 month

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[KTAP V2 PATCH] ktap_v2: allow prefix to KTAP lines

by Rae Moar

Change the KTAP v2 spec to allow variable prefixes to KTAP lines, instead of fixed indentation of two spaces. However, the prefix must be constant on the same level of testing (besides unknown lines). This was proposed by Tim Bird in 2021 and then supported by Frank Rowand in 2022 (see link below). Link: https://lore.kernel.org/all/bc6e9ed7-d98b-c4da-2a59-ee0915c18f10@gmail.com/ As cited in the original proposal, it is useful in some Fuego tests to include an identifier in the prefix. This is an example: KTAP version 1 1..2 [batch_id 4] KTAP version 1 [batch_id 4] 1..2 [batch_id 4] ok 1 cyclictest with 1000 cycles [batch_id 4] # problem setting CLOCK_REALTIME [batch_id 4] not ok 2 cyclictest with CLOCK_REALTIME not ok 1 check realtime [batch_id 4] KTAP version 1 [batch_id 4] 1..1 [batch_id 4] ok 1 IOZone read/write 4k blocks ok 2 check I/O performance Here is a link to a version of the KUnit parser that is able to parse variable length prefixes for KTAP version 2. Note that the prefix must be constant at the same level of testing. Link: https://kunit-review.googlesource.com/c/linux/+/5710 Signed-off-by: Rae Moar <rmoar(a)google.com> --- This idea has already been proposed but I wanted to potentially restart the discussion by demonstrating this change can by implemented in the KUnit parser. Let me know what you think. Note: this patch is based on Frank's ktap_spec_version_2 branch. Documentation/dev-tools/ktap.rst | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/Documentation/dev-tools/ktap.rst b/Documentation/dev-tools/ktap.rst index ff77f4aaa6ef..ac61fdd97096 100644 --- a/Documentation/dev-tools/ktap.rst +++ b/Documentation/dev-tools/ktap.rst @@ -192,9 +192,11 @@ starting with another KTAP version line and test plan, and end with the overall result. If one of the subtests fail, for example, the parent test should also fail. -Additionally, all lines in a subtest should be indented. One level of -indentation is two spaces: " ". The indentation should begin at the version -line and should end before the parent test's result line. +Additionally, all lines in a subtest should be indented. The standard for one +level of indentation is two spaces: " ". However, any prefix for indentation +is allowed as long as the prefix is consistent throughout that level of +testing. The indentation should begin at the version line and should end +before the parent test's result line. "Unknown lines" are not considered to be lines in a subtest and thus are allowed to be either indented or not indented. @@ -229,6 +231,19 @@ An example format with multiple levels of nested testing: not ok 1 example_test_1 ok 2 example_test_2 +An example of a test with two nested subtests using prefixes: + +:: + + KTAP version 2 + 1..1 + [prefix_1] KTAP version 2 + [prefix_1] 1..2 + [prefix_1] ok 1 test_1 + [prefix_1] ok 2 test_2 + # example passed + ok 1 example + Major differences between TAP and KTAP -------------------------------------- base-commit: 906f02e42adfbd5ae70d328ee71656ecb602aaf5 -- 2.40.0.rc1.284.g88254d51c5-goog

2 years, 1 month

2
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[KTAP V2 PATCH] ktap_v2: add recognized test name line

by Rae Moar

Add recognition of the test name line ("# Subtest: <name>") to the KTAP v2 spec. The purpose of this line is to declare the name of a test before its results. This functionality is especially useful when trying to parse test results incrementally and when interpretting results after a crash. This line is already compliant with KTAP v1 as it is interpretted as a diagnostic line by parsers. Additionally, the line is currently used by KUnit tests and was derived from the TAP 14 spec: https://testanything.org/tap-version-14-specification.html. Recognition of this line would create an accepted way for different test frameworks to declare the name of a test before its results. The proposed location for this line is between the version line and the test plan line. This location ensures that the line would not be accidentally parsed as a subtest's diagnostic lines. Note this proposed location would be a slight differentiation from KTAP v1. Example of test name line: KTAP version 2 # Subtest: main_test 1..1 KTAP version 2 # Subtest: sub_test 1..2 ok 1 test_1 ok 2 test_2 ok 1 sub_test Here is a link to a version of the KUnit parser that is able to parse the test name line for KTAP version 2. Note this includes a test name line for the main level of KTAP. Link: https://kunit-review.googlesource.com/c/linux/+/5709 Signed-off-by: Rae Moar <rmoar(a)google.com> --- This is a RFC. I would like to know what people think and use this as a platform for discussion on KTAP v2. Note: this patch is based on Frank's ktap_spec_version_2 branch. Documentation/dev-tools/ktap.rst | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/Documentation/dev-tools/ktap.rst b/Documentation/dev-tools/ktap.rst index ff77f4aaa6ef..9c7ed66d9f77 100644 --- a/Documentation/dev-tools/ktap.rst +++ b/Documentation/dev-tools/ktap.rst @@ -28,8 +28,7 @@ KTAP output is built from four different types of lines: In general, valid KTAP output should also form valid TAP output, but some information, in particular nested test results, may be lost. Also note that there is a stagnant draft specification for TAP14, KTAP diverges from this in -a couple of places (notably the "Subtest" header), which are described where -relevant later in this document. +a couple of places, which are described where relevant later in this document. Version lines ------------- @@ -44,8 +43,8 @@ For example: - "TAP version 14" Note that, in KTAP, subtests also begin with a version line, which denotes the -start of the nested test results. This differs from TAP14, which uses a -separate "Subtest" line. +start of the nested test results. This differs from TAP14, which uses only a +"Subtest" line. While, going forward, "KTAP version 2" should be used by compliant tests, it is expected that most parsers and other tooling will accept the other versions @@ -166,6 +165,12 @@ even if they do not start with a "#": this is to capture any other useful kernel output which may help debug the test. It is nevertheless recommended that tests always prefix any diagnostic output they have with a "#" character. +One recognized diagnostic line is the "# Subtest: <name>" line. This line +is used to declare the name of a test before subtest results are printed. This +is helpful for parsing and for providing context during crashes. As a rule, +this line is placed after the version line and before the plan line. Note +this line can be used for the main test, as well as subtests. + Unknown lines ------------- @@ -206,6 +211,7 @@ An example of a test with two nested subtests: KTAP version 2 1..1 KTAP version 2 + # Subtest: example 1..2 ok 1 test_1 not ok 2 test_2 @@ -219,6 +225,7 @@ An example format with multiple levels of nested testing: KTAP version 2 1..2 KTAP version 2 + # Subtest: example_test_1 1..2 KTAP version 2 1..2 @@ -245,7 +252,7 @@ allows an arbitrary number of tests to be nested no yes The TAP14 specification does permit nested tests, but instead of using another nested version line, uses a line of the form -"Subtest: <name>" where <name> is the name of the parent test. +"Subtest: <name>" where <name> is the name of the parent test as discussed above. Example KTAP output -------------------- @@ -254,6 +261,7 @@ Example KTAP output KTAP version 2 1..1 KTAP version 2 + # Subtest: main_test 1..3 KTAP version 2 1..1 @@ -266,6 +274,7 @@ Example KTAP output ok 2 test_2 ok 2 example_test_2 KTAP version 2 + # Subtest: example_test_3 1..3 ok 1 test_1 # test_2: FAIL base-commit: 906f02e42adfbd5ae70d328ee71656ecb602aaf5 -- 2.40.0.rc1.284.g88254d51c5-goog

2 years, 1 month

3
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Re: [linus:master] [selftests/memfd] 11f75a0144: kernel-selftests.memfd.run_fuse_test.sh.fail

by Daniel Verkamp

On Fri, Mar 31, 2023 at 8:05 AM kernel test robot <yujie.liu(a)intel.com> wrote: > > Hello, > > kernel test robot noticed kernel-selftests.memfd.run_fuse_test.sh.fail due to commit (built with gcc-11): > > commit: 11f75a01448f1b7a739e75dbd8f17b844fcfc510 ("selftests/memfd: add tests for MFD_NOEXEC_SEAL MFD_EXEC") > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master > > in testcase: kernel-selftests > version: kernel-selftests-x86_64-d4cf28ee-1_20230110 > with following parameters: > > group: group-02 > > test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel. > test-url: https://www.kernel.org/doc/Documentation/kselftest.txt > > on test machine: 4 threads Intel(R) Xeon(R) CPU E3-1225 v5 @ 3.30GHz (Skylake) with 16G memory > > caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace): > > > # selftests: memfd: run_fuse_test.sh > # Aborted > not ok 2 selftests: memfd: run_fuse_test.sh # exit=134 > > $ ./run_fuse_test.sh > opening: ./mnt/memfd > 8 != 40 = GET_SEALS(4) > Aborted Hi Jeff, I think this is caused by test_sysctl() in memfd_test, which sets /proc/sys/vm/memfd_noexec to a non-zero value and does not restore it at the end of the test. If fuse_test runs after that, it will unexpectedly get F_SEAL_EXEC in its memfd seals in addition to the F_SEAL_WRITE that it intended to add. I'm not sure how kernel selftests normally perform cleanup (e.g. an atexit() hook to make sure it cleans up if a test fails?), but at least we should probably set /proc/sys/vm/memfd_noexec back to its original value after test_sysctl(). Thanks, -- Daniel

2 years, 1 month

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[PATCH bpf-next] selftests/bpf: Fix conflicts with built-in functions in bench_local_storage_create

by James Hilliard

The fork function in gcc is considered a built in function due to being used by libgcov when building with gnu extensions. Rename fork to sched_process_fork to prevent this conflict. See details: https://github.com/gcc-mirror/gcc/commit/d1c38823924506d389ca58d02926ace21b… https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82457 Fixes the following error: In file included from progs/bench_local_storage_create.c:6: progs/bench_local_storage_create.c:43:14: error: conflicting types for built-in function 'fork'; expected 'int(void)' [-Werror=builtin-declaration-mismatch] 43 | int BPF_PROG(fork, struct task_struct *parent, struct task_struct *child) | ^~~~ Fixes: cbe9d93d58b1 ("selftests/bpf: Add bench for task storage creation") Signed-off-by: James Hilliard <james.hilliard1(a)gmail.com> Cc: Martin KaFai Lau <martin.lau(a)kernel.org> --- tools/testing/selftests/bpf/benchs/bench_local_storage_create.c | 2 +- tools/testing/selftests/bpf/progs/bench_local_storage_create.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/bpf/benchs/bench_local_storage_create.c b/tools/testing/selftests/bpf/benchs/bench_local_storage_create.c index abb0321d4f34..cff703f90e95 100644 --- a/tools/testing/selftests/bpf/benchs/bench_local_storage_create.c +++ b/tools/testing/selftests/bpf/benchs/bench_local_storage_create.c @@ -95,7 +95,7 @@ static void setup(void) exit(1); } } else { - if (!bpf_program__attach(skel->progs.fork)) { + if (!bpf_program__attach(skel->progs.sched_process_fork)) { fprintf(stderr, "Error attaching bpf program\n"); exit(1); } diff --git a/tools/testing/selftests/bpf/progs/bench_local_storage_create.c b/tools/testing/selftests/bpf/progs/bench_local_storage_create.c index 7c851c9d5e47..e4bfbba6c193 100644 --- a/tools/testing/selftests/bpf/progs/bench_local_storage_create.c +++ b/tools/testing/selftests/bpf/progs/bench_local_storage_create.c @@ -40,7 +40,7 @@ int BPF_PROG(kmalloc, unsigned long call_site, const void *ptr, } SEC("tp_btf/sched_process_fork") -int BPF_PROG(fork, struct task_struct *parent, struct task_struct *child) +int BPF_PROG(sched_process_fork, struct task_struct *parent, struct task_struct *child) { struct storage *stg; -- 2.34.1

2 years, 1 month

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kselftest/fixes kselftest-seccomp: 4 runs, 3 regressions (linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657)

by kernelci.org bot

kselftest/fixes kselftest-seccomp: 4 runs, 3 regressions (linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/fixes/kernel/linux-kselftest… Test: kselftest-seccomp Tree: kselftest Branch: fixes Describe: linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: f1594bc676579133a3cd906d7d27733289edfb86 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/642704d1005b5f6e0562f776 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig+kselftest Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023032… * kselftest-seccomp.login: https://kernelci.org/test/case/id/642704d1005b5f6e0562f777 failing since 94 days (last pass: linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67, first fail: v6.2-rc1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/64270559727e91640c62f789 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023032… * kselftest-seccomp.login: https://kernelci.org/test/case/id/64270559727e91640c62f78a failing since 163 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/64270553e41d0a343e62f780 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023032… * kselftest-seccomp.login: https://kernelci.org/test/case/id/64270553e41d0a343e62f781 failing since 163 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76)

2 years, 1 month

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kselftest/fixes kselftest-lkdtm: 4 runs, 3 regressions (linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657)

by kernelci.org bot

kselftest/fixes kselftest-lkdtm: 4 runs, 3 regressions (linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/fixes/kernel/linux-kselftest… Test: kselftest-lkdtm Tree: kselftest Branch: fixes Describe: linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: f1594bc676579133a3cd906d7d27733289edfb86 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/6427051c668029d06062f771 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig+kselftest Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023032… * kselftest-lkdtm.login: https://kernelci.org/test/case/id/6427051c668029d06062f772 failing since 164 days (last pass: v6.0-rc1, first fail: v6.1-rc1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/642706b8af6517d97b62f77f Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023032… * kselftest-lkdtm.login: https://kernelci.org/test/case/id/642706b8af6517d97b62f780 failing since 163 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8183-kukui-...uniper-sku16 | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/64270556e41d0a343e62f786 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023032… * kselftest-lkdtm.login: https://kernelci.org/test/case/id/64270556e41d0a343e62f787 failing since 163 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76)

2 years, 1 month

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kselftest/fixes kselftest-livepatch: 2 runs, 2 regressions (linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657)

by kernelci.org bot

kselftest/fixes kselftest-livepatch: 2 runs, 2 regressions (linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/fixes/kernel/linux-kselftest… Test: kselftest-livepatch Tree: kselftest Branch: fixes Describe: linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: f1594bc676579133a3cd906d7d27733289edfb86 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/642705f81a899df4c262f7a8 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig+kselftest Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023032… * kselftest-livepatch.login: https://kernelci.org/test/case/id/642705f81a899df4c262f7a9 failing since 94 days (last pass: linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67, first fail: v6.2-rc1) platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/64270551e41d0a343e62f77d Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023032… * kselftest-livepatch.login: https://kernelci.org/test/case/id/64270551e41d0a343e62f77e failing since 163 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76)

2 years, 1 month

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kselftest/fixes kselftest-lib: 5 runs, 3 regressions (linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657)

by kernelci.org bot

kselftest/fixes kselftest-lib: 5 runs, 3 regressions (linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 meson-g12b-a311d-khadas-vim3 | arm64 | lab-collabora | gcc-10 | defconfig+kselftest | 1 mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/fixes/kernel/linux-kselftest… Test: kselftest-lib Tree: kselftest Branch: fixes Describe: linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: f1594bc676579133a3cd906d7d27733289edfb86 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ imx6q-sabrelite | arm | lab-collabora | gcc-10 | multi_v7_defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/642704db139983168062f77b Results: 0 PASS, 1 FAIL, 0 SKIP Full config: multi_v7_defconfig+kselftest Compiler: gcc-10 (arm-linux-gnueabihf-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023032… * kselftest-lib.login: https://kernelci.org/test/case/id/642704db139983168062f77c failing since 94 days (last pass: linux-kselftest-fixes-6.1-rc3-3-g89c1017aac67, first fail: v6.2-rc1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ meson-g12b-a311d-khadas-vim3 | arm64 | lab-collabora | gcc-10 | defconfig+kselftest | 1 Details: https://kernelci.org/test/plan/id/642706957be410d11d62f770 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023032… * kselftest-lib.login: https://kernelci.org/test/case/id/642706957be410d11d62f771 failing since 164 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1) platform | arch | lab | compiler | defconfig | regressions -----------------------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/64270594635ff1067462f78f Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023032… * kselftest-lib.login: https://kernelci.org/test/case/id/64270594635ff1067462f790 failing since 163 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76)

2 years, 1 month

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kselftest/fixes kselftest-cpufreq: 4 runs, 1 regressions (linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657)

by kernelci.org bot

kselftest/fixes kselftest-cpufreq: 4 runs, 1 regressions (linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657) Regressions Summary ------------------- platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/job/kselftest/branch/fixes/kernel/linux-kselftest… Test: kselftest-cpufreq Tree: kselftest Branch: fixes Describe: linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657 URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git SHA: f1594bc676579133a3cd906d7d27733289edfb86 Test Regressions ---------------- platform | arch | lab | compiler | defconfig | regressions ----------------+-------+---------------+----------+------------------------------+------------ mt8173-elm-hana | arm64 | lab-collabora | gcc-10 | defconfig+kse...4-chromebook | 1 Details: https://kernelci.org/test/plan/id/642705bc3f662119ae62f817 Results: 0 PASS, 1 FAIL, 0 SKIP Full config: defconfig+kselftest+arm64-chromebook Compiler: gcc-10 (aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110) Plain log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… HTML log: https://storage.kernelci.org//kselftest/fixes/linux-kselftest-fixes-6.3-rc5… Rootfs: http://storage.kernelci.org/images/rootfs/debian/bullseye-kselftest/2023032… * kselftest-cpufreq.login: https://kernelci.org/test/case/id/642705bc3f662119ae62f818 failing since 163 days (last pass: linux-kselftest-fixes-6.0-rc3, first fail: v6.1-rc1-5-gcb05c81ada76)

2 years, 1 month

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kselftest/fixes build: 7 builds: 0 failed, 7 passed, 6 warnings (linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657)

by kernelci.org bot

kselftest/fixes build: 7 builds: 0 failed, 7 passed, 6 warnings (linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657) Full Build Summary: https://kernelci.org/build/kselftest/branch/fixes/kernel/linux-kselftest-fi… Tree: kselftest Branch: fixes Git Describe: linux-kselftest-fixes-6.3-rc5-1-gf1594bc67657 Git Commit: f1594bc676579133a3cd906d7d27733289edfb86 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git Built: 4 unique architectures Warnings Detected: arm64: defconfig+kselftest (clang-16): 3 warnings arm: i386: x86_64: x86_64_defconfig+kselftest (clang-16): 3 warnings Warnings summary: 1 vmlinux.o: warning: objtool: set_ftrace_ops_ro+0x3e: relocation to !ENDBR: .text+0x1463d6 1 vmlinux.o: warning: objtool: set_ftrace_ops_ro+0x28: relocation to !ENDBR: .text+0x14654b 1 vmlinux.o: warning: objtool: lkdtm_UNSET_SMEP+0xca: relocation to !ENDBR: native_write_cr4+0x4 1 drivers/gpu/host1x/dev.c:520:6: warning: variable 'syncpt_irq' is uninitialized when used here [-Wuninitialized] 1 drivers/gpu/host1x/dev.c:490:16: note: initialize the variable 'syncpt_irq' to silence this warning 1 1 warning generated. ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- defconfig+kselftest (arm64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig+kselftest (arm64, clang-16) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: drivers/gpu/host1x/dev.c:520:6: warning: variable 'syncpt_irq' is uninitialized when used here [-Wuninitialized] drivers/gpu/host1x/dev.c:490:16: note: initialize the variable 'syncpt_irq' to silence this warning 1 warning generated. -------------------------------------------------------------------------------- defconfig+kselftest+arm64-chromebook (arm64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig+kselftest (i386, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v7_defconfig+kselftest (arm, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig+kselftest (x86_64, gcc-10) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig+kselftest (x86_64, clang-16) — PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: vmlinux.o: warning: objtool: set_ftrace_ops_ro+0x28: relocation to !ENDBR: .text+0x14654b vmlinux.o: warning: objtool: set_ftrace_ops_ro+0x3e: relocation to !ENDBR: .text+0x1463d6 vmlinux.o: warning: objtool: lkdtm_UNSET_SMEP+0xca: relocation to !ENDBR: native_write_cr4+0x4 --- For more info write to <info(a)kernelci.org>

2 years, 1 month

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[PATCH] l2tp: generate correct module alias strings

by Andrea Righi

Commit 65b32f801bfb ("uapi: move IPPROTO_L2TP to in.h") moved the definition of IPPROTO_L2TP from a define to an enum, but since __stringify doesn't work properly with enums, we ended up breaking the modalias strings for the l2tp modules: $ modinfo l2tp_ip l2tp_ip6 | grep alias alias: net-pf-2-proto-IPPROTO_L2TP alias: net-pf-2-proto-2-type-IPPROTO_L2TP alias: net-pf-10-proto-IPPROTO_L2TP alias: net-pf-10-proto-2-type-IPPROTO_L2TP Use the resolved number directly in MODULE_ALIAS_*() macros (as we already do with SOCK_DGRAM) to fix the alias strings: $ modinfo l2tp_ip l2tp_ip6 | grep alias alias: net-pf-2-proto-115 alias: net-pf-2-proto-115-type-2 alias: net-pf-10-proto-115 alias: net-pf-10-proto-115-type-2 Moreover, fix the ordering of the parameters passed to MODULE_ALIAS_NET_PF_PROTO_TYPE() by switching proto and type. Fixes: 65b32f801bfb ("uapi: move IPPROTO_L2TP to in.h") Link: https://lore.kernel.org/lkml/ZCQt7hmodtUaBlCP@righiandr-XPS-13-7390 Signed-off-by: Guillaume Nault <gnault(a)redhat.com> Signed-off-by: Andrea Righi <andrea.righi(a)canonical.com> --- net/l2tp/l2tp_ip.c | 8 ++++---- net/l2tp/l2tp_ip6.c | 8 ++++---- 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c index 4db5a554bdbd..41a74fc84ca1 100644 --- a/net/l2tp/l2tp_ip.c +++ b/net/l2tp/l2tp_ip.c @@ -677,8 +677,8 @@ MODULE_AUTHOR("James Chapman <jchapman(a)katalix.com>"); MODULE_DESCRIPTION("L2TP over IP"); MODULE_VERSION("1.0"); -/* Use the value of SOCK_DGRAM (2) directory, because __stringify doesn't like - * enums +/* Use the values of SOCK_DGRAM (2) as type and IPPROTO_L2TP (115) as protocol, + * because __stringify doesn't like enums */ -MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET, 2, IPPROTO_L2TP); -MODULE_ALIAS_NET_PF_PROTO(PF_INET, IPPROTO_L2TP); +MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET, 115, 2); +MODULE_ALIAS_NET_PF_PROTO(PF_INET, 115); diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c index 2478aa60145f..5137ea1861ce 100644 --- a/net/l2tp/l2tp_ip6.c +++ b/net/l2tp/l2tp_ip6.c @@ -806,8 +806,8 @@ MODULE_AUTHOR("Chris Elston <celston(a)katalix.com>"); MODULE_DESCRIPTION("L2TP IP encapsulation for IPv6"); MODULE_VERSION("1.0"); -/* Use the value of SOCK_DGRAM (2) directory, because __stringify doesn't like - * enums +/* Use the values of SOCK_DGRAM (2) as type and IPPROTO_L2TP (115) as protocol, + * because __stringify doesn't like enums */ -MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET6, 2, IPPROTO_L2TP); -MODULE_ALIAS_NET_PF_PROTO(PF_INET6, IPPROTO_L2TP); +MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET6, 115, 2); +MODULE_ALIAS_NET_PF_PROTO(PF_INET6, 115); -- 2.39.2

2 years, 1 month

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[PATCH V3 0/2] Add speedometer new test cases for amd-pstate-ut

by Meng Li

Hi all: Update the patches base on the latest kselftest/next. Add speedometer.sh trigger the speedometer testing and monitor the cpu information. Modify rst document to introduce test steps and results etc. See patch seriest in below git repo: V1:https://lore.kernel.org/lkml/20221025100910.1682567-1-li.meng@amd.com/ V2:https://lore.kernel.org/lkml/20221107011127.1818705-1-li.meng@amd.com/ Changes form V1->V2: - update the patches base on the latest kselftest/next. Changes from V2->V3: - selftests: amd-pstate: speedometer - - modify comments - Documentation: amd-pstate: - - modify rst doc, introduce specified test case. Thanks, Jasmine Meng Li (2): selftests: amd-pstate: Trigger speedometer benchmark and test cpus Documentation: amd-pstate: Add speedometer test introduction Documentation/admin-guide/pm/amd-pstate.rst | 88 ++++- tools/testing/selftests/amd-pstate/Makefile | 13 +- tools/testing/selftests/amd-pstate/run.sh | 32 +- .../selftests/amd-pstate/selenium_server.sh | 15 + .../selftests/amd-pstate/speedometer.sh | 348 ++++++++++++++++++ .../selftests/amd-pstate/speedometer_web.py | 106 ++++++ 6 files changed, 585 insertions(+), 17 deletions(-) create mode 100755 tools/testing/selftests/amd-pstate/selenium_server.sh create mode 100755 tools/testing/selftests/amd-pstate/speedometer.sh create mode 100755 tools/testing/selftests/amd-pstate/speedometer_web.py -- 2.34.1

2 years, 1 month

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[PATCH v1 1/1] .gitignore: Unignore .kunitconfig

by Andy Shevchenko

There are almost dozen of .kunitconfig files that are ignored but tracked. Unignore them. Signed-off-by: Andy Shevchenko <andriy.shevchenko(a)linux.intel.com> --- .gitignore | 1 + 1 file changed, 1 insertion(+) diff --git a/.gitignore b/.gitignore index 22984d22d29e..e4f2ba0be516 100644 --- a/.gitignore +++ b/.gitignore @@ -100,6 +100,7 @@ modules.order !.get_maintainer.ignore !.gitattributes !.gitignore +!.kunitconfig !.mailmap !.rustfmt.toml -- 2.39.0

2 years, 1 month

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[PATCH v2] list: test: Test the klist structure

by Sadiya Kazi

Add KUnit tests to the klist linked-list structure. These perform testing for different variations of node add and node delete in the klist data structure (<linux/klist.h>). Limitation: Since we use a static global variable, and if multiple instances of this test are run concurrently, the test may fail. Signed-off-by: Sadiya Kazi <sadiyakazi(a)google.com> Reviewed-by: Brendan Higgins <brendanhiggins(a)google.com> Reviewed-by: David Gow <davidgow(a)google.com> --- Thank you Brendan and David for reviewing this patch. I have addressed the review comments in this iteration. Changes since v1: https://lore.kernel.org/linux-kselftest/20230329110723.3458843-1-sadiyakazi… - Corrected the commenting style - Deleted the comment /* counts the number of nodes*/ - Renamed last_node_count to last_node --- lib/list-test.c | 300 +++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 299 insertions(+), 1 deletion(-) diff --git a/lib/list-test.c b/lib/list-test.c index d374cf5d1a57..0cc27de9cec8 100644 --- a/lib/list-test.c +++ b/lib/list-test.c @@ -8,6 +8,7 @@ #include <kunit/test.h> #include <linux/list.h> +#include <linux/klist.h> struct list_test_struct { int data; @@ -1199,6 +1200,303 @@ static struct kunit_suite hlist_test_module = { .test_cases = hlist_test_cases, }; -kunit_test_suites(&list_test_module, &hlist_test_module); + +struct klist_test_struct { + int data; + struct klist klist; + struct klist_node klist_node; +}; + +static int node_count; +static struct klist_node *last_node; + +static void check_node(struct klist_node *node_ptr) +{ + node_count++; + last_node = node_ptr; +} + +static void check_delete_node(struct klist_node *node_ptr) +{ + node_count--; + last_node = node_ptr; +} + +static void klist_test_add_tail(struct kunit *test) +{ + struct klist_node a, b; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, NULL); + + klist_add_tail(&a, &mylist); + KUNIT_EXPECT_EQ(test, node_count, 1); + KUNIT_EXPECT_PTR_EQ(test, last_node, &a); + + klist_add_tail(&b, &mylist); + KUNIT_EXPECT_EQ(test, node_count, 2); + KUNIT_EXPECT_PTR_EQ(test, last_node, &b); + + /* should be [list] -> a -> b */ + klist_iter_init(&mylist, &i); + + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + KUNIT_EXPECT_NULL(test, klist_next(&i)); + + klist_iter_exit(&i); + +} + +static void klist_test_add_head(struct kunit *test) +{ + struct klist_node a, b; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, NULL); + + klist_add_head(&a, &mylist); + KUNIT_EXPECT_EQ(test, node_count, 1); + KUNIT_EXPECT_PTR_EQ(test, last_node, &a); + + klist_add_head(&b, &mylist); + KUNIT_EXPECT_EQ(test, node_count, 2); + KUNIT_EXPECT_PTR_EQ(test, last_node, &b); + + /* should be [list] -> b -> a */ + klist_iter_init(&mylist, &i); + + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_NULL(test, klist_next(&i)); + + klist_iter_exit(&i); + +} + +static void klist_test_add_behind(struct kunit *test) +{ + struct klist_node a, b, c, d; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, NULL); + + klist_add_head(&a, &mylist); + klist_add_head(&b, &mylist); + + klist_add_behind(&c, &a); + KUNIT_EXPECT_EQ(test, node_count, 3); + KUNIT_EXPECT_PTR_EQ(test, last_node, &c); + + klist_add_behind(&d, &b); + KUNIT_EXPECT_EQ(test, node_count, 4); + KUNIT_EXPECT_PTR_EQ(test, last_node, &d); + + klist_iter_init(&mylist, &i); + + /* should be [list] -> b -> d -> a -> c*/ + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &d); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &c); + KUNIT_EXPECT_NULL(test, klist_next(&i)); + + klist_iter_exit(&i); + +} + +static void klist_test_add_before(struct kunit *test) +{ + struct klist_node a, b, c, d; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, NULL); + + klist_add_head(&a, &mylist); + klist_add_head(&b, &mylist); + klist_add_before(&c, &a); + KUNIT_EXPECT_EQ(test, node_count, 3); + KUNIT_EXPECT_PTR_EQ(test, last_node, &c); + + klist_add_before(&d, &b); + KUNIT_EXPECT_EQ(test, node_count, 4); + KUNIT_EXPECT_PTR_EQ(test, last_node, &d); + + klist_iter_init(&mylist, &i); + + /* should be [list] -> b -> d -> a -> c*/ + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &d); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &c); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_NULL(test, klist_next(&i)); + + klist_iter_exit(&i); + +} + +/* + * Verify that klist_del() delays the deletion of a node until there + * are no other references to it + */ +static void klist_test_del_refcount_greater_than_zero(struct kunit *test) +{ + struct klist_node a, b, c, d; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, &check_delete_node); + + /* Add nodes a,b,c,d to the list*/ + klist_add_tail(&a, &mylist); + klist_add_tail(&b, &mylist); + klist_add_tail(&c, &mylist); + klist_add_tail(&d, &mylist); + + klist_iter_init(&mylist, &i); + + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + /* Advance the iterator to point to node c*/ + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &c); + + /* Try to delete node c while there is a reference to it*/ + klist_del(&c); + + /* + * Verify that node c is still attached to the list even after being + * deleted. Since the iterator still points to c, the reference count is not + * decreased to 0 + */ + KUNIT_EXPECT_TRUE(test, klist_node_attached(&c)); + + /* Check that node c has not been removed yet*/ + KUNIT_EXPECT_EQ(test, node_count, 4); + KUNIT_EXPECT_PTR_EQ(test, last_node, &d); + + klist_iter_exit(&i); + + /* + * Since the iterator is no longer pointing to node c, node c is removed + * from the list + */ + KUNIT_EXPECT_EQ(test, node_count, 3); + KUNIT_EXPECT_PTR_EQ(test, last_node, &c); + +} + +/* + * Verify that klist_del() deletes a node immediately when there are no + * other references to it. + */ +static void klist_test_del_refcount_zero(struct kunit *test) +{ + struct klist_node a, b, c, d; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, &check_delete_node); + + /* Add nodes a,b,c,d to the list*/ + klist_add_tail(&a, &mylist); + klist_add_tail(&b, &mylist); + klist_add_tail(&c, &mylist); + klist_add_tail(&d, &mylist); + /* Delete node c*/ + klist_del(&c); + + /* Check that node c is deleted from the list*/ + KUNIT_EXPECT_EQ(test, node_count, 3); + KUNIT_EXPECT_PTR_EQ(test, last_node, &c); + + /* Should be [list] -> a -> b -> d*/ + klist_iter_init(&mylist, &i); + + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &d); + KUNIT_EXPECT_NULL(test, klist_next(&i)); + + klist_iter_exit(&i); + +} + +static void klist_test_remove(struct kunit *test) +{ + /* This test doesn't check correctness under concurrent access */ + struct klist_node a, b, c, d; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, &check_delete_node); + + /* Add nodes a,b,c,d to the list*/ + klist_add_tail(&a, &mylist); + klist_add_tail(&b, &mylist); + klist_add_tail(&c, &mylist); + klist_add_tail(&d, &mylist); + /* Delete node c*/ + klist_remove(&c); + + /* Check the nodes in the list*/ + KUNIT_EXPECT_EQ(test, node_count, 3); + KUNIT_EXPECT_PTR_EQ(test, last_node, &c); + + /* should be [list] -> a -> b -> d*/ + klist_iter_init(&mylist, &i); + + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &d); + KUNIT_EXPECT_NULL(test, klist_next(&i)); + + klist_iter_exit(&i); + +} + +static void klist_test_node_attached(struct kunit *test) +{ + struct klist_node a = {}; + struct klist mylist; + + klist_init(&mylist, NULL, NULL); + + KUNIT_EXPECT_FALSE(test, klist_node_attached(&a)); + klist_add_head(&a, &mylist); + KUNIT_EXPECT_TRUE(test, klist_node_attached(&a)); + klist_del(&a); + KUNIT_EXPECT_FALSE(test, klist_node_attached(&a)); + +} + +static struct kunit_case klist_test_cases[] = { + KUNIT_CASE(klist_test_add_tail), + KUNIT_CASE(klist_test_add_head), + KUNIT_CASE(klist_test_add_behind), + KUNIT_CASE(klist_test_add_before), + KUNIT_CASE(klist_test_del_refcount_greater_than_zero), + KUNIT_CASE(klist_test_del_refcount_zero), + KUNIT_CASE(klist_test_remove), + KUNIT_CASE(klist_test_node_attached), + {}, +}; + +static struct kunit_suite klist_test_module = { + .name = "klist", + .test_cases = klist_test_cases, +}; + +kunit_test_suites(&list_test_module, &hlist_test_module, &klist_test_module); MODULE_LICENSE("GPL v2"); -- 2.40.0.348.gf938b09366-goog

2 years, 1 month

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[PATCH v2 0/2] selftests/x86: AMX-related test improvements

by Chang S. Bae

Sorry for the delay in this update. Changes from v1: * Improve the skip message along with the changelog massage (Suah Khan). * Simplify the feature support check (Suah Khan). === Cover Letter === A couple of test updates are included: * With the STRICT_SIGALTSTACK_SIZE option [1,2], the kernel's altstack check becomes stringent. The x86 sigaltstack test is ignorant about this. Adjust the test now. This check was established [3] to ensure every AMX task's altstack is sufficient (regardless of that option) [4]. * The AMX test wrongly fails on non-AMX machines. Fix the code to skip the test instead. The series is available in this repository: git://github.com/intel/amx-linux.git selftest [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arc… [2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Doc… [3] 3aac3ebea08f ("x86/signal: Implement sigaltstack size validation") [4] 4b7ca609a33d ("x86/signal: Use fpu::__state_user_size for sigalt stack validation") Chang S. Bae (2): selftests/x86/signal: Adjust the test to the kernel's altstack check selftests/x86/amx: Fix the test to avoid failure when AMX is unavailable tools/testing/selftests/x86/amx.c | 31 ++++++++--------------- tools/testing/selftests/x86/sigaltstack.c | 14 +++++++++- 2 files changed, 23 insertions(+), 22 deletions(-) base-commit: 32346491ddf24599decca06190ebca03ff9de7f8 -- 2.17.1

2 years, 1 month

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[BUG] selftests/firmware: copious kernel memory leaks in test_fw_run_batch_request()

by Mirsad Todorovac

Hi all, Platform is AlmaLinux 8.7 (CentOS fork), Lenovo desktop LENOVO_MT_10TX_BU_Lenovo_FM_V530S-07ICB with the BIOS M22KT49A dated 11/10/2022. Running Torvalds vanilla kernel 6.3-rc3 commit 6981739a967c with CONFIG_DEBUG_KMEMLEAK and CONFIG_DEBUG_{KOBJECT,KOBJECT_RELEASE} enabled. The leak is cummulative, it can be reproduced with tools/testing/selftests/firmware/*.sh scripts. The leaks are in chunks of 1024 bytes (+ overhead), but so far I could not reproduce w/o root privileges, as tests refuse to run as unprivileged user. (This is not the proof of non-existence of an unprivileged automated exploit that would exhaust the kernel memory at approx. rate 4 MB/hour on our setup. This would mean about 96 MB / day or 3 GB / month (of kernel memory). TEST RESULTS (showing the number of kmemleaks per test): root@pc-mtodorov marvin]# grep -c 'comm "test_' linux/kernel_bugs/memleaks-6.3-rc3/kmemleak-fw*.log linux/kernel_bugs/memleaks-6.3-rc3/kmemleak-fw_fallback.sh.log:0 linux/kernel_bugs/memleaks-6.3-rc3/kmemleak-fw_filesystem.sh.log:60 linux/kernel_bugs/memleaks-6.3-rc3/kmemleak-fw_lib.sh.log:9 linux/kernel_bugs/memleaks-6.3-rc3/kmemleak-fw_run_tests.sh.log:196 linux/kernel_bugs/memleaks-6.3-rc3/kmemleak-fw_upload.sh.log:0 [root@pc-mtodorov marvin]# Leaks look like this: unreferenced object 0xffff943c390f8400 (size 1024): comm "test_firmware-0", pid 449178, jiffies 4381453603 (age 824.844s) hex dump (first 32 bytes): 45 46 47 48 34 35 36 37 0a 00 00 00 00 00 00 00 EFGH4567........ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff90aed68c>] slab_post_alloc_hook+0x8c/0x3e0 [<ffffffff90af4f69>] __kmem_cache_alloc_node+0x1d9/0x2a0 [<ffffffff90a6a6ae>] kmalloc_trace+0x2e/0xc0 [<ffffffff90eb2350>] test_fw_run_batch_request+0x90/0x170 [<ffffffff907d6dcf>] kthread+0x10f/0x140 [<ffffffff90602fa9>] ret_from_fork+0x29/0x50 unreferenced object 0xffff943a902f6400 (size 1024): comm "test_firmware-1", pid 449179, jiffies 4381453603 (age 824.844s) hex dump (first 32 bytes): 45 46 47 48 34 35 36 37 0a 00 00 00 00 00 00 00 EFGH4567........ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff90aed68c>] slab_post_alloc_hook+0x8c/0x3e0 [<ffffffff90af4f69>] __kmem_cache_alloc_node+0x1d9/0x2a0 [<ffffffff90a6a6ae>] kmalloc_trace+0x2e/0xc0 [<ffffffff90eb2350>] test_fw_run_batch_request+0x90/0x170 [<ffffffff907d6dcf>] kthread+0x10f/0x140 [<ffffffff90602fa9>] ret_from_fork+0x29/0x50 unreferenced object 0xffff943a902f0400 (size 1024): comm "test_firmware-2", pid 449180, jiffies 4381453603 (age 824.844s) hex dump (first 32 bytes): 45 46 47 48 34 35 36 37 0a 00 00 00 00 00 00 00 EFGH4567........ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff90aed68c>] slab_post_alloc_hook+0x8c/0x3e0 [<ffffffff90af4f69>] __kmem_cache_alloc_node+0x1d9/0x2a0 [<ffffffff90a6a6ae>] kmalloc_trace+0x2e/0xc0 [<ffffffff90eb2350>] test_fw_run_batch_request+0x90/0x170 [<ffffffff907d6dcf>] kthread+0x10f/0x140 [<ffffffff90602fa9>] ret_from_fork+0x29/0x50 unreferenced object 0xffff943a902f4000 (size 1024): comm "test_firmware-3", pid 449181, jiffies 4381453603 (age 824.844s) hex dump (first 32 bytes): 45 46 47 48 34 35 36 37 0a 00 00 00 00 00 00 00 EFGH4567........ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff90aed68c>] slab_post_alloc_hook+0x8c/0x3e0 [<ffffffff90af4f69>] __kmem_cache_alloc_node+0x1d9/0x2a0 [<ffffffff90a6a6ae>] kmalloc_trace+0x2e/0xc0 [<ffffffff90eb2350>] test_fw_run_batch_request+0x90/0x170 [<ffffffff907d6dcf>] kthread+0x10f/0x140 [<ffffffff90602fa9>] ret_from_fork+0x29/0x50 Please find the build config, lshw output and the output of /sys/kernel/debug/kmemleak in the following directory: https://domac.alu.hr/~mtodorov/linux/bugreports/kmemleak-firmware/ NOTE: sent to the maintainers listed for selftest/firmware and those listed for lib/test_firmware.c . Best regards, Mirsad -- Mirsad Goran Todorovac Sistem inženjer Grafički fakultet | Akademija likovnih umjetnosti Sveučilište u Zagrebu System engineer Faculty of Graphic Arts | Academy of Fine Arts University of Zagreb, Republic of Croatia

2 years, 1 month

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[PATCH v2 0/3] KVM: selftests: Fixes for broken tests

by Ryan Roberts

Hi Oliver, Here is a respin of the KVM selftests fixes, with your nits addressed; I've fixed the footer whitespace issue and I'm now using FIELD_GET() in the place where you suggested and a couple of other places too. I've also included the 3rd patch in this series (the ttbr0_el1 fix), which I originally sent separately - this is now using FIELD_GET() too. So this series superceeds [1] and [2]. Thanks, Ryan [1] https://lore.kernel.org/kvmarm/e8ed178a-0c67-3e00-a085-1d88fb3cb41f@arm.com/ [2] https://lore.kernel.org/kvmarm/20230302152033.242073-1-ryan.roberts@arm.com/ Ryan Roberts (3): KVM: selftests: Fixup config fragment for access_tracking_perf_test KVM: selftests: arm64: Fix pte encode/decode for PA bits > 48 KVM: selftests: arm64: Fix ttbr0_el1 encoding for PA bits > 48 tools/testing/selftests/kvm/config | 1 + .../selftests/kvm/lib/aarch64/processor.c | 39 ++++++++++++++----- 2 files changed, 30 insertions(+), 10 deletions(-) -- 2.25.1

2 years, 1 month

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[PATCH] KVM: selftests: Comment newly defined aarch64 ID registers

by Mark Brown

All otherwise unspecified aarch64 ID registers should be read as zero so we cover the whole ID register space in the get-reg-list test but we've added comments for those that have been named. Add comments for ID_AA64PFR2_EL1, ID_AA64SMFR0_EL1, ID_AA64ISAR2_EL1, ID_AA64MMFR3_EL1 and ID_AA64MMFR4_EL1 which have been defined since the comments were added so someone looking for them will see that they are covered. Signed-off-by: Mark Brown <broonie(a)kernel.org> --- tools/testing/selftests/kvm/aarch64/get-reg-list.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/kvm/aarch64/get-reg-list.c b/tools/testing/selftests/kvm/aarch64/get-reg-list.c index d287dd2cac0a..df8a8afca4fc 100644 --- a/tools/testing/selftests/kvm/aarch64/get-reg-list.c +++ b/tools/testing/selftests/kvm/aarch64/get-reg-list.c @@ -807,10 +807,10 @@ static __u64 base_regs[] = { ARM64_SYS_REG(3, 0, 0, 3, 7), ARM64_SYS_REG(3, 0, 0, 4, 0), /* ID_AA64PFR0_EL1 */ ARM64_SYS_REG(3, 0, 0, 4, 1), /* ID_AA64PFR1_EL1 */ - ARM64_SYS_REG(3, 0, 0, 4, 2), + ARM64_SYS_REG(3, 0, 0, 4, 2), /* ID_AA64PFR2_EL1 */ ARM64_SYS_REG(3, 0, 0, 4, 3), ARM64_SYS_REG(3, 0, 0, 4, 4), /* ID_AA64ZFR0_EL1 */ - ARM64_SYS_REG(3, 0, 0, 4, 5), + ARM64_SYS_REG(3, 0, 0, 4, 5), /* ID_AA64SMFR0_EL1 */ ARM64_SYS_REG(3, 0, 0, 4, 6), ARM64_SYS_REG(3, 0, 0, 4, 7), ARM64_SYS_REG(3, 0, 0, 5, 0), /* ID_AA64DFR0_EL1 */ @@ -823,7 +823,7 @@ static __u64 base_regs[] = { ARM64_SYS_REG(3, 0, 0, 5, 7), ARM64_SYS_REG(3, 0, 0, 6, 0), /* ID_AA64ISAR0_EL1 */ ARM64_SYS_REG(3, 0, 0, 6, 1), /* ID_AA64ISAR1_EL1 */ - ARM64_SYS_REG(3, 0, 0, 6, 2), + ARM64_SYS_REG(3, 0, 0, 6, 2), /* ID_AA64ISAR2_EL1 */ ARM64_SYS_REG(3, 0, 0, 6, 3), ARM64_SYS_REG(3, 0, 0, 6, 4), ARM64_SYS_REG(3, 0, 0, 6, 5), @@ -832,8 +832,8 @@ static __u64 base_regs[] = { ARM64_SYS_REG(3, 0, 0, 7, 0), /* ID_AA64MMFR0_EL1 */ ARM64_SYS_REG(3, 0, 0, 7, 1), /* ID_AA64MMFR1_EL1 */ ARM64_SYS_REG(3, 0, 0, 7, 2), /* ID_AA64MMFR2_EL1 */ - ARM64_SYS_REG(3, 0, 0, 7, 3), - ARM64_SYS_REG(3, 0, 0, 7, 4), + ARM64_SYS_REG(3, 0, 0, 7, 3), /* ID_AA64MMFR3_EL1 */ + ARM64_SYS_REG(3, 0, 0, 7, 4), /* ID_AA64MMFR4_EL1 */ ARM64_SYS_REG(3, 0, 0, 7, 5), ARM64_SYS_REG(3, 0, 0, 7, 6), ARM64_SYS_REG(3, 0, 0, 7, 7), --- base-commit: fe15c26ee26efa11741a7b632e9f23b01aca4cc6 change-id: 20230210-kvm-arm64-getreg-comments-078093666fd5 Best regards, -- Mark Brown <broonie(a)kernel.org>

2 years, 1 month

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[PATCH] .gitignore: Exclude KUnit config dot-files

by Javier Martinez Canillas

There's a rule to ignore all the dot-files (.*) but we want to exclude the config files used by KUnit (.kunitconfig) since those are usually added to allow executing test suites without having to enable custom config symbols. Signed-off-by: Javier Martinez Canillas <javierm(a)redhat.com> --- .gitignore | 1 + 1 file changed, 1 insertion(+) diff --git a/.gitignore b/.gitignore index 70ec6037fa7a..7f86e0837909 100644 --- a/.gitignore +++ b/.gitignore @@ -103,6 +103,7 @@ modules.order !.get_maintainer.ignore !.gitattributes !.gitignore +!.kunitconfig !.mailmap !.rustfmt.toml base-commit: ffe78bbd512166e0ef1cc4858010b128c510ed7d -- 2.40.0

2 years, 1 month

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[PATCH v6 0/7] Support ROHM BU27034 ALS sensor

by Matti Vaittinen

Support ROHM BU27034 ALS sensor This series adds support for ROHM BU27034 Ambient Light Sensor. The BU27034 has configurable gain and measurement (integration) time settings. Both of these have inversely proportional relation to the sensor's intensity channel scale. Many users only set the scale, which means that many drivers attempt to 'guess' the best gain+time combination to meet the scale. Usually this is the biggest integration time which allows setting the requested scale. Typically, increasing the integration time has better accuracy than increasing the gain, which often amplifies the noise as well as the real signal. However, there may be cases where more responsive sensors are needed. So, in some cases the longest integration times may not be what the user prefers. The driver has no way of knowing this. Hence, the approach taken by this series is to allow user to set both the scale and the integration time with following logic: 1. When scale is set, the existing integration time is tried to be maintained as a first priority. 1a) If the requested scale can't be met by current time, then also other time + gain combinations are searched. If scale can be met by some other integration time, then the new time may be applied. If the time setting is common for all channels, then also other channels must be able to maintain their scale with this new time (by changing their gain). The new times are scanned in the order of preference (typically the longest times first). 1b) If the requested scale can be met using current time, then only the gain for the channel is changed. 2. When the integration time change - scale is tried to be maintained. When integration time change is requested also gain for all impacted channels is adjusted so that the scale is not changed, or is chaned as little as possible. This is different from the RFCv1 where the request was rejected if suitable gain couldn't be found for some channel(s). This logic is simple. When total gain (either caused by time or hw-gain) is doubled, the scale gets halved. Also, the supported times are given a 'multiplier' value which tells how much they increase the total gain. However, when I wrote this logic in bu27034 driver, I made quite a few errors on the way - and driver got pretty big. As I am writing drivers for two other sensors (RGB C/IR + flicker BU27010 and RGB C/IR BU27008) with similar gain-time-scale logic I thought that adding common helpers for these computations might be wise. I hope this way all the bugs will be concentrated in one place and not in every individual driver ;) Hence, this series also intriduces IIO gain-time-scale helpers (abbreviated as gts-helpers) + a couple of KUnit tests for the most hairy parts. Speaking of which - testing the devm interfaces requires a 'dummy device'. I've learned that there has been at least two ways of handling this kind of a dependecy. 1) Using a root_device_[un]register() functions (with or without a wrapper) 2) Using dummy platform_device. Way 2) is seen as abusing platform_devices to something they should not be used. Way 1) is also seen sub-optimal - and after a discussion a 'kunit dummy device' is being worked on by David Gow: https://lore.kernel.org/linux-kselftest/20230325043104.3761770-1-davidgow@g… David's work relies on not yet in-tree kunit deferring API. Schedule for this work is - as always in case of upstream development - unkonwn. In order to be self-contained while still easily 'fixable when David's work is completed' this series introduces warappers named similar to what was suggested by david - and which are intended to have similar behaviour (automatic clean-up upon test completion). These wrappers do still use root-device APIs underneath but this should be fixed by David's work. Finally, these added helpers do provide some value also for drivers which only: a) allow gain change or b) allow changing both the time and gain while trying to maintain the scale. For a) we provide the gain - selector (register value) table format + selector to gain look-ups, gain <-> scale conversions and the available scales helpers. For latter case we also provide the time-tables, and actually all the APIs should be usable by setting the time multiplier to 1. (not testeted thoroughly though). The patch 1/7 introduces the helpers for creating/dropping a test device for devm-tests. It can be applied alone. The patch 4/7 (IIO GTS tests) also depends on the patch 1/7 (and also other patches in the series). Rest of the series should be Ok to be applied with/without the patches 1/7 and 4/7 - although the 4/7 (which depends on 1/7) would be "nice to have" together with the rest of the series for the testability reasons. Revision history: v5 => v6: - Just a minor fixes in iio-gts-helpers and bu27034 driver. - Kunit device helper for a test device creation. - IIO GTS tests use kunit device helper. v4 => v5: Mostly fixes to review comments from Andy and Jonathan. - more accurate change-log in individual patches - copy code from DRM test helper instead of moving it to simplify merging - document all exported GTS helpers. - inline a few GTS helpers - use again Milli lux for the bu27034 with RAW IIO_LIGHT channel and scale - Fix bug from added in v4 bu27034 time setting. v3 => v4: (Still mostly fixes to review comments from Andy and Jonathan) - more accurate change-log in individual patches - dt-binding and maintainer patches unchanged. - dropped unused helpers and converted ones currently used only internally to static. - extracted "dummy device" creation helpers from DRM tests. - added tests for devm APIs - dropped scale for PROCESSED channel in BU27034 and converted mLux values to luxes - dropped channel 2 GAIN setting which can't be done due to HW limitations. v2 => v3: (Mostly fixes to review comments from Andy and Jonathan) - dt-binding and maintainer patches unchanged. - iio-gts-helper tests: Use namespaces - iio-gts-helpers + bu27034 plenty of changes. See more comprehensive changelog in individual patches. RFCv1 => v2: dt-bindings: - Fix binding file name and id by using comma instead of a hyphen to separate the vendor and part names. gts-helpers: - fix include guardian - Improve kernel doc for iio_init_iio_gts. - Add iio_gts_scale_to_total_gain - Add iio_gts_total_gain_to_scale - Fix review comments from Jonathan - add documentation to few functions - replace 0xffffffffffffffffLLU by U64_MAX - some styling fixes - drop unnecessary NULL checks - order function arguments by in / out purpose - drop GAIN_SCALE_ITIME_MS() - Add helpers for available scales and times - Rename to iio-gts-helpers gts-tests: - add tests for available scales/times helpers - adapt to renamed iio-gts-helpers.h header bu27034-driver: - (really) protect read-only registers - fix get and set gain - buffered mode - Protect the whole sequences including meas_en/meas_dis to avoid messing up the enable / disable order - typofixes / doc improvements - change dropped GAIN_SCALE_ITIME_MS() to GAIN_SCALE_ITIME_US() - use more accurate scale for lux channel (milli lux) - provide available scales / integration times (using helpers). - adapt to renamed iio-gts-helpers.h file - bu27034 - longer lines in Kconfig - Drop bu27034_meas_en and bu27034_meas_dis wrappers. - Change device-name from bu27034-als to bu27034 MAINTAINERS: - Add iio-list --- Matti Vaittinen (7): dt-bindings: iio: light: Support ROHM BU27034 iio: light: Add gain-time-scale helpers kunit: Add kunit wrappers for (root) device creation iio: test: test gain-time-scale helpers MAINTAINERS: Add IIO gain-time-scale helpers iio: light: ROHM BU27034 Ambient Light Sensor MAINTAINERS: Add ROHM BU27034 .../bindings/iio/light/rohm,bu27034.yaml | 46 + MAINTAINERS | 14 + drivers/iio/Kconfig | 3 + drivers/iio/Makefile | 1 + drivers/iio/industrialio-gts-helper.c | 1057 ++++++++++++ drivers/iio/light/Kconfig | 14 + drivers/iio/light/Makefile | 1 + drivers/iio/light/rohm-bu27034.c | 1496 +++++++++++++++++ drivers/iio/test/Kconfig | 14 + drivers/iio/test/Makefile | 1 + drivers/iio/test/iio-test-gts.c | 517 ++++++ include/kunit/device.h | 18 + include/linux/iio/iio-gts-helper.h | 206 +++ lib/kunit/Makefile | 3 +- lib/kunit/device.c | 36 + 15 files changed, 3426 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/iio/light/rohm,bu27034.yaml create mode 100644 drivers/iio/industrialio-gts-helper.c create mode 100644 drivers/iio/light/rohm-bu27034.c create mode 100644 drivers/iio/test/iio-test-gts.c create mode 100644 include/kunit/device.h create mode 100644 include/linux/iio/iio-gts-helper.h create mode 100644 lib/kunit/device.c base-commit: eeac8ede17557680855031c6f305ece2378af326 -- 2.39.2 -- Matti Vaittinen, Linux device drivers ROHM Semiconductors, Finland SWDC Kiviharjunlenkki 1E 90220 OULU FINLAND ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~ Simon says - in Latin please. ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~ Thanks to Simon Glass for the translation =]

2 years, 1 month

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[PATCH v2 0/2] regmap: Initial KUnit coverage

by Mark Brown

This series provides some initial KUnit coverage for regmap, covering most of the interfaces that operate at the register level using an instrumented RAM backed bus type. Without the current regmap tree the paging tests will fail as the RAM backed regmap doesn't support the required operations. Changes in v2: - Add a test for regcache_drop_region(). - Add a stress test for inserting registers into a sparse cache. - Link to v1: https://lore.kernel.org/r/20230324-regmap-kunit-v1-0-62ef9cfa9b89@kernel.org Signed-off-by: Mark Brown <broonie(a)kernel.org> --- Mark Brown (2): regmap: Add RAM backed register map regmap: Add some basic kunit tests drivers/base/regmap/Kconfig | 10 + drivers/base/regmap/Makefile | 2 + drivers/base/regmap/internal.h | 19 + drivers/base/regmap/regmap-kunit.c | 736 +++++++++++++++++++++++++++++++++++++ drivers/base/regmap/regmap-ram.c | 85 +++++ 5 files changed, 852 insertions(+) --- base-commit: e8d018dd0257f744ca50a729e3d042cf2ec9da65 change-id: 20230324-regmap-kunit-bb3c3e81e35c Best regards, -- Mark Brown <broonie(a)kernel.org>

2 years, 1 month

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[PATCH 0/2] regmap: Initial KUnit coverage

by Mark Brown

This series provides some initial KUnit coverage for regmap, covering most of the interfaces that operate at the register level using an instrumented RAM backed bus type. Signed-off-by: Mark Brown <broonie(a)kernel.org> --- Mark Brown (2): regmap: Add RAM backed register map regmap: Add some basic kunit tests drivers/base/regmap/Kconfig | 10 + drivers/base/regmap/Makefile | 2 + drivers/base/regmap/internal.h | 19 ++ drivers/base/regmap/regmap-kunit.c | 631 +++++++++++++++++++++++++++++++++++++ drivers/base/regmap/regmap-ram.c | 85 +++++ 5 files changed, 747 insertions(+) --- base-commit: e8d018dd0257f744ca50a729e3d042cf2ec9da65 change-id: 20230324-regmap-kunit-bb3c3e81e35c Best regards, -- Mark Brown <broonie(a)kernel.org>

2 years, 1 month

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[PATCH 5.4] selftests: Fix the executable permissions for fib_tests.sh

by Rishabh Bhatnagar

Commit 04a331c9dd66 reverted change 2537b637eac0 (ipv4: Fix incorrect route flushing when source address is deleted) that added the fib_tests.sh file back with wrong permissions. Fix that in this commit. Signed-off-by: Rishabh Bhatnagar <risbhat(a)amazon.com> --- tools/testing/selftests/net/fib_tests.sh | 0 1 file changed, 0 insertions(+), 0 deletions(-) mode change 100644 => 100755 tools/testing/selftests/net/fib_tests.sh diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh old mode 100644 new mode 100755 -- 2.39.2

2 years, 1 month

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selftests: net: l2tp.sh regression starting with 6.1-rc1

by Andrea Righi

I noticed that l2tp.sh net selftest is failing in recent kernels with the following error: RTNETLINK answers: Protocol not supported See also: https://bugs.launchpad.net/bugs/2013014 Apprently the module lt2p_ipv6 is not automatically loaded when the test is trying to create an l2tp ipv6 tunnel. I did a bisect and found that the offending commit is this one: 65b32f801bfb ("uapi: move IPPROTO_L2TP to in.h") I've temporarily reverted this commit for now, any suggestion on how to fix this properly? Thanks, -Andrea

2 years, 1 month

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[PATCH] Input: Add KUnit tests for some of the input core helper functions

by Javier Martinez Canillas

The input subsystem doesn't currently have any unit tests, let's add a CONFIG_INPUT_KUNIT_TEST option that builds a test suite to be executed with the KUnit test infrastructure. For now, only three tests were added for some of the input core helper functions that are trivial to test: * input_test_polling: set/get poll interval and set-up a poll handler. * input_test_timestamp: set/get input event timestamps. * input_test_match_device_id: match a device by bus, vendor, product and events that is capable of handling. But having the minimal KUnit support allows to add more tests and suites as follow-up changes. The tests can be run with the following command: $ ./tools/testing/kunit/kunit.py run \ --kunitconfig=drivers/input/tests/.kunitconfig Signed-off-by: Javier Martinez Canillas <javierm(a)redhat.com> --- drivers/input/Kconfig | 12 +++ drivers/input/Makefile | 1 + drivers/input/tests/Makefile | 3 + drivers/input/tests/input_test.c | 144 +++++++++++++++++++++++++++++++ 4 files changed, 160 insertions(+) create mode 100644 drivers/input/tests/Makefile create mode 100644 drivers/input/tests/input_test.c diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig index e2752f7364bc..e094e5bbaa0c 100644 --- a/drivers/input/Kconfig +++ b/drivers/input/Kconfig @@ -166,6 +166,18 @@ config INPUT_EVBUG To compile this driver as a module, choose M here: the module will be called evbug. +config INPUT_KUNIT_TEST + tristate "KUnit tests for Input" if !KUNIT_ALL_TESTS + depends on INPUT && KUNIT=y + default KUNIT_ALL_TESTS + help + Say Y here if you want to build the KUnit tests for the input + subsystem. For more information about KUnit and unit tests in + general, please refer to the KUnit documentation in + Documentation/dev-tools/kunit/. + + If in doubt, say "N". + config INPUT_APMPOWER tristate "Input Power Event -> APM Bridge" if EXPERT depends on INPUT && APM_EMULATION diff --git a/drivers/input/Makefile b/drivers/input/Makefile index 2266c7d010ef..c78753274921 100644 --- a/drivers/input/Makefile +++ b/drivers/input/Makefile @@ -26,6 +26,7 @@ obj-$(CONFIG_INPUT_JOYSTICK) += joystick/ obj-$(CONFIG_INPUT_TABLET) += tablet/ obj-$(CONFIG_INPUT_TOUCHSCREEN) += touchscreen/ obj-$(CONFIG_INPUT_MISC) += misc/ +obj-$(CONFIG_INPUT_KUNIT_TEST) += tests/ obj-$(CONFIG_INPUT_APMPOWER) += apm-power.o diff --git a/drivers/input/tests/Makefile b/drivers/input/tests/Makefile new file mode 100644 index 000000000000..90cf954181bc --- /dev/null +++ b/drivers/input/tests/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-$(CONFIG_INPUT_KUNIT_TEST) += input_test.o diff --git a/drivers/input/tests/input_test.c b/drivers/input/tests/input_test.c new file mode 100644 index 000000000000..25bbf51b5c87 --- /dev/null +++ b/drivers/input/tests/input_test.c @@ -0,0 +1,144 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * KUnit test for the input core. + * + * Copyright (c) 2023 Red Hat Inc + */ + +#include <linux/delay.h> +#include <linux/input.h> + +#include <kunit/test.h> + +#define POLL_INTERVAL 100 + +static int input_test_init(struct kunit *test) +{ + struct input_dev *input_dev; + int ret; + + input_dev = input_allocate_device(); + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, input_dev); + + input_dev->name = "Test input device"; + input_dev->id.bustype = BUS_VIRTUAL; + input_dev->id.vendor = 1; + input_dev->id.product = 1; + input_dev->id.version = 1; + input_set_capability(input_dev, EV_KEY, BTN_LEFT); + input_set_capability(input_dev, EV_KEY, BTN_RIGHT); + + ret = input_register_device(input_dev); + KUNIT_ASSERT_EQ(test, ret, 0); + + test->priv = input_dev; + + return 0; +} + +static void input_test_exit(struct kunit *test) +{ + struct input_dev *input_dev = test->priv; + + input_unregister_device(input_dev); +} + +static void input_test_poll(struct input_dev *input) { } + +static void input_test_polling(struct kunit *test) +{ + struct input_dev *input_dev = test->priv; + int ret; + + ret = input_get_poll_interval(input_dev); + KUNIT_ASSERT_EQ(test, ret, -EINVAL); + + ret = input_setup_polling(input_dev, input_test_poll); + KUNIT_ASSERT_EQ(test, ret, 0); + + input_set_poll_interval(input_dev, POLL_INTERVAL); + + ret = input_get_poll_interval(input_dev); + KUNIT_ASSERT_EQ(test, ret, POLL_INTERVAL); +} + +static void input_test_timestamp(struct kunit *test) +{ + const ktime_t invalid_timestamp = ktime_set(0, 0); + struct input_dev *input_dev = test->priv; + ktime_t *timestamp, time; + int ret; + + timestamp = input_get_timestamp(input_dev); + time = timestamp[INPUT_CLK_MONO]; + + ret = ktime_compare(time, invalid_timestamp); + KUNIT_ASSERT_EQ(test, ret, 1); + + time = ktime_get(); + input_set_timestamp(input_dev, time); + + timestamp = input_get_timestamp(input_dev); + KUNIT_ASSERT_EQ(test, ktime_compare(timestamp[INPUT_CLK_MONO], + time), 0); +} + +static void input_test_match_device_id(struct kunit *test) +{ + struct input_dev *input_dev = test->priv; + struct input_device_id id; + + id.flags = INPUT_DEVICE_ID_MATCH_BUS; + id.bustype = BUS_VIRTUAL; + KUNIT_ASSERT_TRUE(test, input_match_device_id(input_dev, &id)); + + id.bustype = BUS_I2C; + KUNIT_ASSERT_FALSE(test, input_match_device_id(input_dev, &id)); + + id.flags = INPUT_DEVICE_ID_MATCH_VENDOR; + id.vendor = 1; + KUNIT_ASSERT_TRUE(test, input_match_device_id(input_dev, &id)); + + id.vendor = 2; + KUNIT_ASSERT_FALSE(test, input_match_device_id(input_dev, &id)); + + id.flags = INPUT_DEVICE_ID_MATCH_PRODUCT; + id.product = 1; + KUNIT_ASSERT_TRUE(test, input_match_device_id(input_dev, &id)); + + id.product = 2; + KUNIT_ASSERT_FALSE(test, input_match_device_id(input_dev, &id)); + + id.flags = INPUT_DEVICE_ID_MATCH_VERSION; + id.version = 1; + KUNIT_ASSERT_TRUE(test, input_match_device_id(input_dev, &id)); + + id.version = 2; + KUNIT_ASSERT_FALSE(test, input_match_device_id(input_dev, &id)); + + id.flags = INPUT_DEVICE_ID_MATCH_EVBIT; + __set_bit(EV_KEY, id.evbit); + KUNIT_ASSERT_TRUE(test, input_match_device_id(input_dev, &id)); + + __set_bit(EV_ABS, id.evbit); + KUNIT_ASSERT_FALSE(test, input_match_device_id(input_dev, &id)); +} + +static struct kunit_case input_tests[] = { + KUNIT_CASE(input_test_polling), + KUNIT_CASE(input_test_timestamp), + KUNIT_CASE(input_test_match_device_id), + { /* sentinel */ } +}; + +static struct kunit_suite input_test_suite = { + .name = "input_core", + .init = input_test_init, + .exit = input_test_exit, + .test_cases = input_tests, +}; + +kunit_test_suite(input_test_suite); + +MODULE_AUTHOR("Javier Martinez Canillas <javierm(a)redhat.com>"); +MODULE_LICENSE("GPL"); base-commit: 3a93e40326c8f470e71d20b4c42d36767450f38f -- 2.40.0

2 years, 1 month

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[RFC PATCH 0/2] KUnit device API proposal

by David Gow

Hi all, This is a follow-up to the conversation[1] about adding helpers to create a struct device for use in KUnit tests. At the moment, most tests are using root_device_register(), which doesn't quite fit, and a few are using platform_devices instead. This adds a KUnit-specific equivalent: kunit_device_register(), which creates a device which will be automatically cleaned up on test exit (such as, for example, if an assertion fails). It's also possible to unregister it earlier with kunit_device_unregister(). This can replace the root_device_register() users pretty comfortably, though doesn't resolve the issue with devm_ resources not being released properly as laid out in [2]. Updating the implementation here to use a 'kunit' bus should, I think, be reasonably straightforward. The first patch in the series is an in-progress implementation of a separate new 'kunit_defer()' API, upon which this device implementation is built. If the overall idea seems good, I'll make sure to add better tests/documentation, and patches converting existing tests to this API. Cheers, -- David [1]: https://lore.kernel.org/linux-kselftest/bad670ee135391eb902bd34b8bcbe777afa… [2]: https://lore.kernel.org/linux-kselftest/20230324123157.bbwvfq4gsxnlnfwb@hou… --- David Gow (2): kunit: resource: Add kunit_defer() functionality kunit: Add APIs for managing devices include/kunit/device.h | 25 +++++++++ include/kunit/resource.h | 87 +++++++++++++++++++++++++++++++ lib/kunit/Makefile | 1 + lib/kunit/device.c | 68 ++++++++++++++++++++++++ lib/kunit/resource.c | 110 +++++++++++++++++++++++++++++++++++++++ 5 files changed, 291 insertions(+) create mode 100644 include/kunit/device.h create mode 100644 lib/kunit/device.c -- 2.40.0.348.gf938b09366-goog

2 years, 1 month

5
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[PATCH v1] list: test: Test the klist structure

by Sadiya Kazi

Add KUnit tests to the klist linked-list structure. These perform testing for different variations of node add and node delete in the klist data structure (<linux/klist.h>). Limitation: Since we use a static global variable, and if multiple instances of this test are run concurrently, the test may fail. Signed-off-by: Sadiya Kazi <sadiyakazi(a)google.com> --- lib/list-test.c | 298 +++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 297 insertions(+), 1 deletion(-) diff --git a/lib/list-test.c b/lib/list-test.c index d374cf5d1a57..af651cacb8f4 100644 --- a/lib/list-test.c +++ b/lib/list-test.c @@ -8,6 +8,7 @@ #include <kunit/test.h> #include <linux/list.h> +#include <linux/klist.h> struct list_test_struct { int data; @@ -1199,6 +1200,301 @@ static struct kunit_suite hlist_test_module = { .test_cases = hlist_test_cases, }; -kunit_test_suites(&list_test_module, &hlist_test_module); + +struct klist_test_struct { + int data; + struct klist klist; + struct klist_node klist_node; +}; + +/* counts the number of nodes*/ +static int node_count; +static struct klist_node *last_node_count; + +static void check_node(struct klist_node *node_ptr) +{ + node_count++; + last_node_count = node_ptr; +} + +static void check_delete_node(struct klist_node *node_ptr) +{ + node_count--; + last_node_count = node_ptr; +} + +static void klist_test_add_tail(struct kunit *test) +{ + struct klist_node a, b; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, NULL); + + klist_add_tail(&a, &mylist); + KUNIT_EXPECT_EQ(test, node_count, 1); + KUNIT_EXPECT_PTR_EQ(test, last_node_count, &a); + + klist_add_tail(&b, &mylist); + KUNIT_EXPECT_EQ(test, node_count, 2); + KUNIT_EXPECT_PTR_EQ(test, last_node_count, &b); + + /* should be [list] -> a -> b */ + klist_iter_init(&mylist, &i); + + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + KUNIT_EXPECT_NULL(test, klist_next(&i)); + + klist_iter_exit(&i); + +} + +static void klist_test_add_head(struct kunit *test) +{ + struct klist_node a, b; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, NULL); + + klist_add_head(&a, &mylist); + KUNIT_EXPECT_EQ(test, node_count, 1); + KUNIT_EXPECT_PTR_EQ(test, last_node_count, &a); + + klist_add_head(&b, &mylist); + KUNIT_EXPECT_EQ(test, node_count, 2); + KUNIT_EXPECT_PTR_EQ(test, last_node_count, &b); + + /* should be [list] -> b -> a */ + klist_iter_init(&mylist, &i); + + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_NULL(test, klist_next(&i)); + + klist_iter_exit(&i); + +} + +static void klist_test_add_behind(struct kunit *test) +{ + struct klist_node a, b, c, d; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, NULL); + + klist_add_head(&a, &mylist); + klist_add_head(&b, &mylist); + + klist_add_behind(&c, &a); + KUNIT_EXPECT_EQ(test, node_count, 3); + KUNIT_EXPECT_PTR_EQ(test, last_node_count, &c); + + klist_add_behind(&d, &b); + KUNIT_EXPECT_EQ(test, node_count, 4); + KUNIT_EXPECT_PTR_EQ(test, last_node_count, &d); + + klist_iter_init(&mylist, &i); + + /* should be [list] -> b -> d -> a -> c*/ + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &d); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &c); + KUNIT_EXPECT_NULL(test, klist_next(&i)); + + klist_iter_exit(&i); + +} + +static void klist_test_add_before(struct kunit *test) +{ + struct klist_node a, b, c, d; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, NULL); + + klist_add_head(&a, &mylist); + klist_add_head(&b, &mylist); + klist_add_before(&c, &a); + KUNIT_EXPECT_EQ(test, node_count, 3); + KUNIT_EXPECT_PTR_EQ(test, last_node_count, &c); + + klist_add_before(&d, &b); + KUNIT_EXPECT_EQ(test, node_count, 4); + KUNIT_EXPECT_PTR_EQ(test, last_node_count, &d); + + klist_iter_init(&mylist, &i); + + /* should be [list] -> b -> d -> a -> c*/ + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &d); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &c); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_NULL(test, klist_next(&i)); + + klist_iter_exit(&i); + +} + +/* Verify that klist_del() delays the deletion of a node until there + * are no other references to it + */ +static void klist_test_del_refcount_greater_than_zero(struct kunit *test) +{ + struct klist_node a, b, c, d; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, &check_delete_node); + + /* Add nodes a,b,c,d to the list*/ + klist_add_tail(&a, &mylist); + klist_add_tail(&b, &mylist); + klist_add_tail(&c, &mylist); + klist_add_tail(&d, &mylist); + + klist_iter_init(&mylist, &i); + + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + /* Advance the iterator to point to node c*/ + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &c); + + /* Try to delete node c while there is a reference to it*/ + klist_del(&c); + + /* + * Verify that node c is still attached to the list even after being + * deleted. Since the iterator still points to c, the reference count is not + * decreased to 0 + */ + KUNIT_EXPECT_TRUE(test, klist_node_attached(&c)); + + /* Check that node c has not been removed yet*/ + KUNIT_EXPECT_EQ(test, node_count, 4); + KUNIT_EXPECT_PTR_EQ(test, last_node_count, &d); + + klist_iter_exit(&i); + + /* Since the iterator is no longer pointing to node c, node c is removed + * from the list + */ + KUNIT_EXPECT_EQ(test, node_count, 3); + KUNIT_EXPECT_PTR_EQ(test, last_node_count, &c); + +} + +/* Verify that klist_del() deletes a node immediately when there are no + * other references to it. + */ +static void klist_test_del_refcount_zero(struct kunit *test) +{ + struct klist_node a, b, c, d; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, &check_delete_node); + + /* Add nodes a,b,c,d to the list*/ + klist_add_tail(&a, &mylist); + klist_add_tail(&b, &mylist); + klist_add_tail(&c, &mylist); + klist_add_tail(&d, &mylist); + /* Delete node c*/ + klist_del(&c); + + /* Check that node c is deleted from the list*/ + KUNIT_EXPECT_EQ(test, node_count, 3); + KUNIT_EXPECT_PTR_EQ(test, last_node_count, &c); + + /* Should be [list] -> a -> b -> d*/ + klist_iter_init(&mylist, &i); + + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &d); + KUNIT_EXPECT_NULL(test, klist_next(&i)); + + klist_iter_exit(&i); + +} + +static void klist_test_remove(struct kunit *test) +{ + /* This test doesn't check correctness under concurrent access */ + struct klist_node a, b, c, d; + struct klist mylist; + struct klist_iter i; + + node_count = 0; + klist_init(&mylist, &check_node, &check_delete_node); + + /* Add nodes a,b,c,d to the list*/ + klist_add_tail(&a, &mylist); + klist_add_tail(&b, &mylist); + klist_add_tail(&c, &mylist); + klist_add_tail(&d, &mylist); + /* Delete node c*/ + klist_remove(&c); + + /* Check the nodes in the list*/ + KUNIT_EXPECT_EQ(test, node_count, 3); + KUNIT_EXPECT_PTR_EQ(test, last_node_count, &c); + + /* should be [list] -> a -> b -> d*/ + klist_iter_init(&mylist, &i); + + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &a); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &b); + KUNIT_EXPECT_PTR_EQ(test, klist_next(&i), &d); + KUNIT_EXPECT_NULL(test, klist_next(&i)); + + klist_iter_exit(&i); + +} + +static void klist_test_node_attached(struct kunit *test) +{ + struct klist_node a = {}; + struct klist mylist; + + klist_init(&mylist, NULL, NULL); + + KUNIT_EXPECT_FALSE(test, klist_node_attached(&a)); + klist_add_head(&a, &mylist); + KUNIT_EXPECT_TRUE(test, klist_node_attached(&a)); + klist_del(&a); + KUNIT_EXPECT_FALSE(test, klist_node_attached(&a)); + +} + +static struct kunit_case klist_test_cases[] = { + KUNIT_CASE(klist_test_add_tail), + KUNIT_CASE(klist_test_add_head), + KUNIT_CASE(klist_test_add_behind), + KUNIT_CASE(klist_test_add_before), + KUNIT_CASE(klist_test_del_refcount_greater_than_zero), + KUNIT_CASE(klist_test_del_refcount_zero), + KUNIT_CASE(klist_test_remove), + KUNIT_CASE(klist_test_node_attached), + {}, +}; + +static struct kunit_suite klist_test_module = { + .name = "klist", + .test_cases = klist_test_cases, +}; + +kunit_test_suites(&list_test_module, &hlist_test_module, &klist_test_module); MODULE_LICENSE("GPL v2"); -- 2.40.0.348.gf938b09366-goog

2 years, 1 month

3
2
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[PATCH bpf-next v2] selftests/bpf: Rewrite two infinite loops in bound check cases

by Xu Kuohai

From: Xu Kuohai <xukuohai(a)huawei.com> The two infinite loops in bound check cases added by commit 1a3148fc171f ("selftests/bpf: Check when bounds are not in the 32-bit range") increased the execution time of test_verifier from about 6 seconds to about 9 seconds. Rewrite these two infinite loops to finite loops to get rid of this extra time cost. Signed-off-by: Xu Kuohai <xukuohai(a)huawei.com> --- v2: - rewrite the infinite loops to finite loops instead of removing the test cases v1: https://lore.kernel.org/bpf/20230327153538.850440-1-xukuohai@huaweicloud.co… --- tools/testing/selftests/bpf/verifier/bounds.c | 24 ++++++++++++------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/tools/testing/selftests/bpf/verifier/bounds.c b/tools/testing/selftests/bpf/verifier/bounds.c index 74b1917d4208..43942ce8cf15 100644 --- a/tools/testing/selftests/bpf/verifier/bounds.c +++ b/tools/testing/selftests/bpf/verifier/bounds.c @@ -784,22 +784,26 @@ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data_end)), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1), - BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 8), + BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 13), BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_2, 0), BPF_LD_IMM64(BPF_REG_0, 0x7fffffffffffff10), BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_0), + BPF_LD_IMM64(BPF_REG_2, 0x8000000000000fff), BPF_LD_IMM64(BPF_REG_0, 0x8000000000000000), BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), + BPF_JMP_REG(BPF_JSGT, BPF_REG_0, BPF_REG_2, 3), /* r1 signed range is [S64_MIN, S64_MAX] */ - BPF_JMP_REG(BPF_JSLT, BPF_REG_0, BPF_REG_1, -2), + BPF_JMP_REG(BPF_JSLT, BPF_REG_0, BPF_REG_1, -3), + + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_EXIT_INSN(), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, - .errstr = "BPF program is too large", - .result = REJECT, + .result = ACCEPT, .prog_type = BPF_PROG_TYPE_XDP, }, { @@ -856,21 +860,25 @@ BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, offsetof(struct xdp_md, data_end)), BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1), - BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 6), + BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 10), BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_2, 0), BPF_MOV32_IMM(BPF_REG_0, 0x7fffff10), BPF_ALU32_REG(BPF_ADD, BPF_REG_1, BPF_REG_0), + BPF_MOV32_IMM(BPF_REG_2, 0x80000fff), BPF_MOV32_IMM(BPF_REG_0, 0x80000000), BPF_ALU32_IMM(BPF_ADD, BPF_REG_0, 1), + BPF_JMP32_REG(BPF_JSGT, BPF_REG_0, BPF_REG_2, 3), /* r1 signed range is [S32_MIN, S32_MAX] */ - BPF_JMP32_REG(BPF_JSLT, BPF_REG_0, BPF_REG_1, -2), + BPF_JMP32_REG(BPF_JSLT, BPF_REG_0, BPF_REG_1, -3), + + BPF_MOV64_IMM(BPF_REG_0, 1), + BPF_EXIT_INSN(), BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN(), }, - .errstr = "BPF program is too large", - .result = REJECT, + .result = ACCEPT, .prog_type = BPF_PROG_TYPE_XDP, }, -- 2.30.2

2 years, 1 month

3
2
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[PATCH v4 00/17] Add iommufd physical device operations for replace and alloc hwpt

by Jason Gunthorpe

This is the basic functionality for iommufd to support iommufd_device_replace() and IOMMU_HWPT_ALLOC for physical devices. iommufd_device_replace() allows changing the HWPT associated with the device to a new IOAS or HWPT. Replace does this in way that failure leaves things unchanged, and utilizes the iommu iommu_group_replace_domain() API to allow the iommu driver to perform an optional non-disruptive change. IOMMU_HWPT_ALLOC allows HWPTs to be explicitly allocated by the user and used by attach or replace. At this point it isn't very useful since the HWPT is the same as the automatically managed HWPT from the IOAS. However a following series will allow userspace to customize the created HWPT. The implementation is complicated because we have to introduce some per-iommu_group memory in iommufd and redo how we think about multi-device groups to be more explicit. This solves all the locking problems in the prior attempts. This series is infrastructure work for the following series which: - Add replace for attach - Expose replace through VFIO APIs - Implement driver parameters for HWPT creation (nesting) Once review of this is complete I will keep it on a side branch and accumulate the following series when they are ready so we can have a stable base and make more incremental progress. When we have all the parts together to get a full implementation it can go to Linus. This is on github: https://github.com/jgunthorpe/linux/commits/iommufd_hwpt v4: - Refine comments and commit messages - Move the group lock into iommufd_hw_pagetable_attach() - Fix error unwind in iommufd_device_do_replace() v3: https://lore.kernel.org/r/0-v3-61d41fd9e13e+1f5-iommufd_alloc_jgg@nvidia.com - Refine comments and commit messages - Adjust the flow in iommufd_device_auto_get_domain() so pt_id is only set on success - Reject replace on non-attached devices - Add missing __reserved check for IOMMU_HWPT_ALLOC v2: https://lore.kernel.org/r/0-v2-51b9896e7862+8a8c-iommufd_alloc_jgg@nvidia.c… - Use WARN_ON for the igroup->group test and move that logic to a function iommufd_group_try_get() - Change igroup->devices to igroup->device list Replace will need to iterate over all attached idevs - Rename to iommufd_group_setup_msi() - New patch to export iommu_get_resv_regions() - New patch to use per-device reserved regions instead of per-group regions - Split out the reorganizing of iommufd_device_change_pt() from the replace patch - Replace uses the per-dev reserved regions - Use stdev_id in a few more places in the selftest - Fix error handling in IOMMU_HWPT_ALLOC - Clarify comments - Rebase on v6.3-rc1 v1: https://lore.kernel.org/all/0-v1-7612f88c19f5+2f21-iommufd_alloc_jgg@nvidia… Jason Gunthorpe (15): iommufd: Move isolated msi enforcement to iommufd_device_bind() iommufd: Add iommufd_group iommufd: Replace the hwpt->devices list with iommufd_group iommu: Export iommu_get_resv_regions() iommufd: Keep track of each device's reserved regions instead of groups iommufd: Use the iommufd_group to avoid duplicate MSI setup iommufd: Make sw_msi_start a group global iommufd: Move putting a hwpt to a helper function iommufd: Add enforced_cache_coherency to iommufd_hw_pagetable_alloc() iommufd: Reorganize iommufd_device_attach into iommufd_device_change_pt iommufd: Add iommufd_device_replace() iommufd: Make destroy_rwsem use a lock class per object type iommufd: Add IOMMU_HWPT_ALLOC iommufd/selftest: Return the real idev id from selftest mock_domain iommufd/selftest: Add a selftest for IOMMU_HWPT_ALLOC Nicolin Chen (2): iommu: Introduce a new iommu_group_replace_domain() API iommufd/selftest: Test iommufd_device_replace() drivers/iommu/iommu-priv.h | 10 + drivers/iommu/iommu.c | 41 +- drivers/iommu/iommufd/device.c | 523 +++++++++++++----- drivers/iommu/iommufd/hw_pagetable.c | 96 +++- drivers/iommu/iommufd/io_pagetable.c | 27 +- drivers/iommu/iommufd/iommufd_private.h | 51 +- drivers/iommu/iommufd/iommufd_test.h | 6 + drivers/iommu/iommufd/main.c | 17 +- drivers/iommu/iommufd/selftest.c | 40 ++ include/linux/iommufd.h | 1 + include/uapi/linux/iommufd.h | 26 + tools/testing/selftests/iommu/iommufd.c | 64 ++- .../selftests/iommu/iommufd_fail_nth.c | 52 +- tools/testing/selftests/iommu/iommufd_utils.h | 61 +- 14 files changed, 810 insertions(+), 205 deletions(-) create mode 100644 drivers/iommu/iommu-priv.h base-commit: fd8c1a4aee973e87d890a5861e106625a33b2c4e -- 2.40.0

2 years, 1 month

3
20
0 0

[PATCH v2 0/4] cgroup/cpuset: Miscellaneous updates

by Waiman Long

v2: - Add a new patch 1 that fixes a bug introduced by recent v6.2 commit 7a2127e66a00 ("cpuset: Call set_cpus_allowed_ptr() with appropriate mask for task"). - Make a small twist and additional comment to patch 2 ("cgroup/cpuset: Skip task update if hotplug doesn't affect current cpuset") as suggested by Michal. - Remove v1 patches 3/4 for now for further discussion. This patch series includes miscellaneous update to the cpuset and its testing code. Patch 1 fixes a bug caused by commit 7a2127e66a00 ("cpuset: Call set_cpus_allowed_ptr() with appropriate mask for task") in the partition handling code. This fix was verified by running the test_cpuset_prs.sh test. Patch 2 is for a hotplug optimization. Patch 3 is actually a follow-up of commit 3fb906e7fabb ("cgroup/cpuset: Don't filter offline CPUs in cpuset_cpus_allowed() for top cpuset tasks"). Patch 4 reduces verbosity when running test_cpuset_prs.sh test script unless explicitly enabled with the -v option. Waiman Long (4): cgroup/cpuset: Fix partition root's cpuset.cpus update bug cgroup/cpuset: Skip task update if hotplug doesn't affect current cpuset cgroup/cpuset: Include offline CPUs when tasks' cpumasks in top_cpuset are updated cgroup/cpuset: Minor updates to test_cpuset_prs.sh kernel/cgroup/cpuset.c | 38 +++++++++++++------ .../selftests/cgroup/test_cpuset_prs.sh | 25 ++++++------ 2 files changed, 41 insertions(+), 22 deletions(-) -- 2.31.1

2 years, 1 month

4
11
0 0

[PATCH bpf-next v2 10/10] selftests: xsk: Add tests for 8K and 9K frame sizes

by Kal Conley

Add tests: - RUN_TO_COMPLETION_8K_FRAME_SIZE: frame_size=8192 (aligned) - UNALIGNED_9K_FRAME_SIZE: frame_size=9000 (unaligned) Signed-off-by: Kal Conley <kal.conley(a)dectris.com> --- tools/testing/selftests/bpf/xskxceiver.c | 25 ++++++++++++++++++++++++ tools/testing/selftests/bpf/xskxceiver.h | 2 ++ 2 files changed, 27 insertions(+) diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c index f73bc6ff5c3d..fb5ba225b652 100644 --- a/tools/testing/selftests/bpf/xskxceiver.c +++ b/tools/testing/selftests/bpf/xskxceiver.c @@ -1841,6 +1841,17 @@ static void run_pkt_test(struct test_spec *test, enum test_mode mode, enum test_ pkt_stream_replace(test, DEFAULT_PKT_CNT, PKT_SIZE); testapp_validate_traffic(test); break; + case TEST_TYPE_RUN_TO_COMPLETION_8K_FRAME: + if (!hugepages_present(test->ifobj_tx)) { + ksft_test_result_skip("No 2M huge pages present.\n"); + return; + } + test_spec_set_name(test, "RUN_TO_COMPLETION_8K_FRAME_SIZE"); + test->ifobj_tx->umem->frame_size = 8192; + test->ifobj_rx->umem->frame_size = 8192; + pkt_stream_replace(test, DEFAULT_PKT_CNT, PKT_SIZE); + testapp_validate_traffic(test); + break; case TEST_TYPE_RX_POLL: test->ifobj_rx->use_poll = true; test_spec_set_name(test, "POLL_RX"); @@ -1905,6 +1916,20 @@ static void run_pkt_test(struct test_spec *test, enum test_mode mode, enum test_ if (!testapp_unaligned(test)) return; break; + case TEST_TYPE_UNALIGNED_9K_FRAME: + if (!hugepages_present(test->ifobj_tx)) { + ksft_test_result_skip("No 2M huge pages present.\n"); + return; + } + test_spec_set_name(test, "UNALIGNED_9K_FRAME_SIZE"); + test->ifobj_tx->umem->frame_size = 9000; + test->ifobj_rx->umem->frame_size = 9000; + test->ifobj_tx->umem->unaligned_mode = true; + test->ifobj_rx->umem->unaligned_mode = true; + pkt_stream_replace(test, DEFAULT_PKT_CNT, PKT_SIZE); + test->ifobj_rx->pkt_stream->use_addr_for_fill = true; + testapp_validate_traffic(test); + break; case TEST_TYPE_HEADROOM: testapp_headroom(test); break; diff --git a/tools/testing/selftests/bpf/xskxceiver.h b/tools/testing/selftests/bpf/xskxceiver.h index 919327807a4e..7f52f737f5e9 100644 --- a/tools/testing/selftests/bpf/xskxceiver.h +++ b/tools/testing/selftests/bpf/xskxceiver.h @@ -69,12 +69,14 @@ enum test_mode { enum test_type { TEST_TYPE_RUN_TO_COMPLETION, TEST_TYPE_RUN_TO_COMPLETION_2K_FRAME, + TEST_TYPE_RUN_TO_COMPLETION_8K_FRAME, TEST_TYPE_RUN_TO_COMPLETION_SINGLE_PKT, TEST_TYPE_RX_POLL, TEST_TYPE_TX_POLL, TEST_TYPE_POLL_RXQ_TMOUT, TEST_TYPE_POLL_TXQ_TMOUT, TEST_TYPE_UNALIGNED, + TEST_TYPE_UNALIGNED_9K_FRAME, TEST_TYPE_ALIGNED_INV_DESC, TEST_TYPE_ALIGNED_INV_DESC_2K_FRAME, TEST_TYPE_UNALIGNED_INV_DESC, -- 2.39.2

2 years, 1 month

1
0
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[PATCH bpf-next v2 09/10] selftests: xsk: Use hugepages when umem->frame_size > PAGE_SIZE

by Kal Conley

HugeTLB UMEMs now support chunk_size > PAGE_SIZE. Set MAP_HUGETLB when frame_size > PAGE_SIZE for future tests. Signed-off-by: Kal Conley <kal.conley(a)dectris.com> --- tools/testing/selftests/bpf/xskxceiver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c index 9b9efd0e0a4c..f73bc6ff5c3d 100644 --- a/tools/testing/selftests/bpf/xskxceiver.c +++ b/tools/testing/selftests/bpf/xskxceiver.c @@ -1289,7 +1289,7 @@ static void thread_common_ops(struct test_spec *test, struct ifobject *ifobject) void *bufs; int ret; - if (ifobject->umem->unaligned_mode) + if (ifobject->umem->frame_size > sysconf(_SC_PAGESIZE) || ifobject->umem->unaligned_mode) mmap_flags |= MAP_HUGETLB; if (ifobject->shared_umem) -- 2.39.2

2 years, 1 month

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[PATCH bpf-next v2 05/10] selftests: xsk: Disable IPv6 on VETH1

by Kal Conley

This change fixes flakiness in the BIDIRECTIONAL test: # [is_pkt_valid] expected length [60], got length [90] not ok 1 FAIL: SKB BUSY-POLL BIDIRECTIONAL When IPv6 is enabled, the interface will periodically send MLDv1 and MLDv2 packets. These packets can cause the BIDIRECTIONAL test to fail since it uses VETH0 for RX. For other tests, this was not a problem since they only receive on VETH1 and IPv6 was already disabled on VETH0. Signed-off-by: Kal Conley <kal.conley(a)dectris.com> --- tools/testing/selftests/bpf/test_xsk.sh | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh index b077cf58f825..377fb157a57c 100755 --- a/tools/testing/selftests/bpf/test_xsk.sh +++ b/tools/testing/selftests/bpf/test_xsk.sh @@ -116,6 +116,7 @@ setup_vethPairs() { ip link add ${VETH0} numtxqueues 4 numrxqueues 4 type veth peer name ${VETH1} numtxqueues 4 numrxqueues 4 if [ -f /proc/net/if_inet6 ]; then echo 1 > /proc/sys/net/ipv6/conf/${VETH0}/disable_ipv6 + echo 1 > /proc/sys/net/ipv6/conf/${VETH1}/disable_ipv6 fi if [[ $verbose -eq 1 ]]; then echo "setting up ${VETH1}" -- 2.39.2

2 years, 1 month

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[PATCH bpf-next v2 03/10] selftests: xsk: Add test case for packets at end of UMEM

by Kal Conley

Add test case to testapp_invalid_desc for valid packets at the end of the UMEM. Signed-off-by: Kal Conley <kal.conley(a)dectris.com> --- tools/testing/selftests/bpf/xskxceiver.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c index 3956f5db84f3..34a1f32fe752 100644 --- a/tools/testing/selftests/bpf/xskxceiver.c +++ b/tools/testing/selftests/bpf/xskxceiver.c @@ -1662,6 +1662,8 @@ static void testapp_invalid_desc(struct test_spec *test) {-2, PKT_SIZE, 0, false}, /* Packet too large */ {0x2000, XSK_UMEM__INVALID_FRAME_SIZE, 0, false}, + /* Up to end of umem allowed */ + {umem_size - PKT_SIZE, PKT_SIZE, 0, true}, /* After umem ends */ {umem_size, PKT_SIZE, 0, false}, /* Straddle the end of umem */ @@ -1675,16 +1677,17 @@ static void testapp_invalid_desc(struct test_spec *test) if (test->ifobj_tx->umem->unaligned_mode) { /* Crossing a page boundrary allowed */ - pkts[6].valid = true; + pkts[7].valid = true; } if (test->ifobj_tx->umem->frame_size == XSK_UMEM__DEFAULT_FRAME_SIZE / 2) { /* Crossing a 2K frame size boundrary not allowed */ - pkts[7].valid = false; + pkts[8].valid = false; } if (test->ifobj_tx->shared_umem) { pkts[4].addr += umem_size; pkts[5].addr += umem_size; + pkts[6].addr += umem_size; } pkt_stream_generate_custom(test, pkts, ARRAY_SIZE(pkts)); -- 2.39.2

2 years, 1 month

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[PATCH bpf-next v2 02/10] selftests: xsk: Use correct UMEM size in testapp_invalid_desc

by Kal Conley

Avoid UMEM_SIZE macro in testapp_invalid_desc which is incorrect when the frame size is not XSK_UMEM__DEFAULT_FRAME_SIZE. Also remove the macro since it's no longer being used. Fixes: 909f0e28207c ("selftests: xsk: Add tests for 2K frame size") Signed-off-by: Kal Conley <kal.conley(a)dectris.com> --- tools/testing/selftests/bpf/xskxceiver.c | 9 +++++---- tools/testing/selftests/bpf/xskxceiver.h | 1 - 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c index b65e0645b0cd..3956f5db84f3 100644 --- a/tools/testing/selftests/bpf/xskxceiver.c +++ b/tools/testing/selftests/bpf/xskxceiver.c @@ -1652,6 +1652,7 @@ static void testapp_single_pkt(struct test_spec *test) static void testapp_invalid_desc(struct test_spec *test) { + u64 umem_size = test->ifobj_tx->umem->num_frames * test->ifobj_tx->umem->frame_size; struct pkt pkts[] = { /* Zero packet address allowed */ {0, PKT_SIZE, 0, true}, @@ -1662,9 +1663,9 @@ static void testapp_invalid_desc(struct test_spec *test) /* Packet too large */ {0x2000, XSK_UMEM__INVALID_FRAME_SIZE, 0, false}, /* After umem ends */ - {UMEM_SIZE, PKT_SIZE, 0, false}, + {umem_size, PKT_SIZE, 0, false}, /* Straddle the end of umem */ - {UMEM_SIZE - PKT_SIZE / 2, PKT_SIZE, 0, false}, + {umem_size - PKT_SIZE / 2, PKT_SIZE, 0, false}, /* Straddle a page boundrary */ {0x3000 - PKT_SIZE / 2, PKT_SIZE, 0, false}, /* Straddle a 2K boundrary */ @@ -1682,8 +1683,8 @@ static void testapp_invalid_desc(struct test_spec *test) } if (test->ifobj_tx->shared_umem) { - pkts[4].addr += UMEM_SIZE; - pkts[5].addr += UMEM_SIZE; + pkts[4].addr += umem_size; + pkts[5].addr += umem_size; } pkt_stream_generate_custom(test, pkts, ARRAY_SIZE(pkts)); diff --git a/tools/testing/selftests/bpf/xskxceiver.h b/tools/testing/selftests/bpf/xskxceiver.h index bdb4efedf3a9..cc24ab72f3ff 100644 --- a/tools/testing/selftests/bpf/xskxceiver.h +++ b/tools/testing/selftests/bpf/xskxceiver.h @@ -53,7 +53,6 @@ #define THREAD_TMOUT 3 #define DEFAULT_PKT_CNT (4 * 1024) #define DEFAULT_UMEM_BUFFERS (DEFAULT_PKT_CNT / 4) -#define UMEM_SIZE (DEFAULT_UMEM_BUFFERS * XSK_UMEM__DEFAULT_FRAME_SIZE) #define RX_FULL_RXQSIZE 32 #define UMEM_HEADROOM_TEST_SIZE 128 #define XSK_UMEM__INVALID_FRAME_SIZE (XSK_UMEM__DEFAULT_FRAME_SIZE + 1) -- 2.39.2

2 years, 1 month

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[PATCH bpf-next v2 01/10] selftests: xsk: Add xskxceiver.h dependency to Makefile

by Kal Conley

xskxceiver depends on xskxceiver.h so tell make about it. Signed-off-by: Kal Conley <kal.conley(a)dectris.com> --- tools/testing/selftests/bpf/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 4a8ef118fd9d..223be997f15d 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -612,7 +612,7 @@ $(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT) $(call msg,BINARY,,$@) $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ -$(OUTPUT)/xskxceiver: xskxceiver.c $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) +$(OUTPUT)/xskxceiver: xskxceiver.c xskxceiver.h $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT) $(call msg,BINARY,,$@) $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@ -- 2.39.2

2 years, 1 month

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[PATCH bpf-next 3/3] selftests: xsk: Add tests for 8K and 9K frame sizes

by Kal Conley

Add tests: - RUN_TO_COMPLETION_8K_FRAME_SIZE: frame_size=8192 (aligned) - RUN_TO_COMPLETION_9K_FRAME_SIZE: frame_size=9000 (unaligned) Signed-off-by: Kal Conley <kal.conley(a)dectris.com> --- tools/testing/selftests/bpf/xskxceiver.c | 24 ++++++++++++++++++++++++ tools/testing/selftests/bpf/xskxceiver.h | 2 ++ 2 files changed, 26 insertions(+) diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c index 7a47ef28fbce..f10ff8c5e9c5 100644 --- a/tools/testing/selftests/bpf/xskxceiver.c +++ b/tools/testing/selftests/bpf/xskxceiver.c @@ -1789,6 +1789,30 @@ static void run_pkt_test(struct test_spec *test, enum test_mode mode, enum test_ pkt_stream_replace(test, DEFAULT_PKT_CNT, PKT_SIZE); testapp_validate_traffic(test); break; + case TEST_TYPE_RUN_TO_COMPLETION_8K_FRAME: + if (!hugepages_present(test->ifobj_tx)) { + ksft_test_result_skip("No 2M huge pages present.\n"); + return; + } + test_spec_set_name(test, "RUN_TO_COMPLETION_8K_FRAME_SIZE"); + test->ifobj_tx->umem->frame_size = 8192; + test->ifobj_rx->umem->frame_size = 8192; + pkt_stream_replace(test, DEFAULT_PKT_CNT, PKT_SIZE); + testapp_validate_traffic(test); + break; + case TEST_TYPE_RUN_TO_COMPLETION_9K_FRAME: + if (!hugepages_present(test->ifobj_tx)) { + ksft_test_result_skip("No 2M huge pages present.\n"); + return; + } + test_spec_set_name(test, "RUN_TO_COMPLETION_9K_FRAME_SIZE"); + test->ifobj_tx->umem->frame_size = 9000; + test->ifobj_rx->umem->frame_size = 9000; + test->ifobj_tx->umem->unaligned_mode = true; + test->ifobj_rx->umem->unaligned_mode = true; + pkt_stream_replace(test, DEFAULT_PKT_CNT, PKT_SIZE); + testapp_validate_traffic(test); + break; case TEST_TYPE_RX_POLL: test->ifobj_rx->use_poll = true; test_spec_set_name(test, "POLL_RX"); diff --git a/tools/testing/selftests/bpf/xskxceiver.h b/tools/testing/selftests/bpf/xskxceiver.h index 3e8ec7d8ec32..ff723b6d7852 100644 --- a/tools/testing/selftests/bpf/xskxceiver.h +++ b/tools/testing/selftests/bpf/xskxceiver.h @@ -70,6 +70,8 @@ enum test_mode { enum test_type { TEST_TYPE_RUN_TO_COMPLETION, TEST_TYPE_RUN_TO_COMPLETION_2K_FRAME, + TEST_TYPE_RUN_TO_COMPLETION_8K_FRAME, + TEST_TYPE_RUN_TO_COMPLETION_9K_FRAME, TEST_TYPE_RUN_TO_COMPLETION_SINGLE_PKT, TEST_TYPE_RX_POLL, TEST_TYPE_TX_POLL, -- 2.39.2

2 years, 1 month

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[PATCH v2 0/4] iommufd: Add iommu hardware info reporting

by Yi Liu

iommufd gives userspace the capability to manipulate iommu subsytem. e.g. DMA map/unmap etc. In the near future, it will support iommu nested translation. Different platform vendors have different implementation for the nested translation. So before set up nested translation, userspace needs to know the hardware iommu information. For example, Intel VT-d supports using guest I/O page table as the stage-1 translation table. This requires guest I/O page table be compatible with hardware IOMMU. This series reports the iommu hardware information for a given iommufd_device which has been bound to iommufd. It is preparation work for userspace to allocate hwpt for given device. Like the nested translation support[1]. This series introduces an iommu op to report the iommu hardware info, and an ioctl IOMMU_DEVICE_GET_HW_INFO is added to report such hardware info to user. enum iommu_hw_info_type is defined to differentiate the iommu hardware info reported to user hence user can decode them. This series only adds the framework for iommu hw info reporting, the complete reporting path needs vendor specific definition and driver support. The full picture is available in [1] as well. base-commit: 4c7e97cb6e65eab02991f60a5cc7a4fed5498c7a [1] https://github.com/yiliu1765/iommufd/tree/iommufd_nesting Change log: v2: - Drop patch 05 of v1 as it is already covered by other series - Rename the capability info to be iommu hardware info v1: https://lore.kernel.org/linux-iommu/20230209041642.9346-1-yi.l.liu@intel.co… Regards, Yi Liu Lu Baolu (1): iommu: Add new iommu op to get iommu hardware information Nicolin Chen (1): iommufd/selftest: Add coverage for IOMMU_DEVICE_GET_HW_INFO ioctl Yi Liu (2): iommu: Move dev_iommu_ops() to private header iommufd: Add IOMMU_DEVICE_GET_HW_INFO drivers/iommu/iommu-priv.h | 11 +++ drivers/iommu/iommu.c | 2 + drivers/iommu/iommufd/device.c | 75 +++++++++++++++++++ drivers/iommu/iommufd/iommufd_private.h | 1 + drivers/iommu/iommufd/iommufd_test.h | 15 ++++ drivers/iommu/iommufd/main.c | 3 + drivers/iommu/iommufd/selftest.c | 16 ++++ include/linux/iommu.h | 24 +++--- include/uapi/linux/iommufd.h | 47 ++++++++++++ tools/testing/selftests/iommu/iommufd.c | 17 ++++- tools/testing/selftests/iommu/iommufd_utils.h | 26 +++++++ 11 files changed, 225 insertions(+), 12 deletions(-) -- 2.34.1

2 years, 1 month

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[PATCH][next] selftests: prctl: Fix spelling mistake "anonynous" -> "anonymous"

by Colin Ian King

There is a spelling mistake in an log message. Fix it. Signed-off-by: Colin Ian King <colin.i.king(a)gmail.com> --- tools/testing/selftests/prctl/set-anon-vma-name-test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/prctl/set-anon-vma-name-test.c b/tools/testing/selftests/prctl/set-anon-vma-name-test.c index 26d853c5a0c1..4275cb256dce 100644 --- a/tools/testing/selftests/prctl/set-anon-vma-name-test.c +++ b/tools/testing/selftests/prctl/set-anon-vma-name-test.c @@ -97,7 +97,7 @@ TEST_F(vma, renaming) { TH_LOG("Try to pass invalid name (with non-printable character \\1) to rename the VMA"); EXPECT_EQ(rename_vma((unsigned long)self->ptr_anon, AREA_SIZE, BAD_NAME), -EINVAL); - TH_LOG("Try to rename non-anonynous VMA"); + TH_LOG("Try to rename non-anonymous VMA"); EXPECT_EQ(rename_vma((unsigned long) self->ptr_not_anon, AREA_SIZE, GOOD_NAME), -EINVAL); } -- 2.30.2

2 years, 1 month

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[PATCH net-next v2 0/4] mptcp: a couple of cleanups and improvements

by Matthieu Baerts

Patch 1 removes an unneeded address copy in subflow_syn_recv_sock(). Patch 2 simplifies subflow_syn_recv_sock() to postpone some actions and to avoid a bunch of conditionals. Patch 3 stops reporting limits that are not taken into account when the userspace PM is used. Patch 4 adds a new test to validate that the 'subflows' field reported by the kernel is correct. Such info can be retrieved via Netlink (e.g. with ss) or getsockopt(SOL_MPTCP, MPTCP_INFO). Signed-off-by: Matthieu Baerts <matthieu.baerts(a)tessares.net> --- Changes in v2: - Patch 3/4's commit message has been updated to use the correct SHA - Rebased on latest net-next - Link to v1: https://lore.kernel.org/r/20230324-upstream-net-next-20230324-misc-features… --- Geliang Tang (1): selftests: mptcp: add mptcp_info tests Matthieu Baerts (1): mptcp: do not fill info not used by the PM in used Paolo Abeni (2): mptcp: avoid unneeded address copy mptcp: simplify subflow_syn_recv_sock() net/mptcp/sockopt.c | 20 +++++++---- net/mptcp/subflow.c | 43 +++++++--------------- tools/testing/selftests/net/mptcp/mptcp_join.sh | 47 ++++++++++++++++++++++++- 3 files changed, 72 insertions(+), 38 deletions(-) --- base-commit: e5b42483ccce50d5b957f474fd332afd4ef0c27b change-id: 20230324-upstream-net-next-20230324-misc-features-178b2b618414 Best regards, -- Matthieu Baerts <matthieu.baerts(a)tessares.net>

2 years, 1 month

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Language Services for Your Business

by Ariel Zhang

2 years, 1 month

1
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[PATCH] kunit: increase KUNIT_LOG_SIZE to 2048 bytes

by Heiko Carstens

The s390 specific test_unwind kunit test has 39 parameterized tests. The results in debugfs are truncated since the full log doesn't fit into 1500 bytes. Therefore increase KUNIT_LOG_SIZE to 2048 bytes in a similar way like it was done recently with commit "kunit: fix bug in debugfs logs of parameterized tests". With that the whole test result is present. Reported-by: Alexander Egorenkov <egorenar(a)linux.ibm.com> Signed-off-by: Heiko Carstens <hca(a)linux.ibm.com> --- include/kunit/test.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/kunit/test.h b/include/kunit/test.h index 9721584027d8..57b309c6ca27 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -34,7 +34,7 @@ DECLARE_STATIC_KEY_FALSE(kunit_running); struct kunit; /* Size of log associated with test. */ -#define KUNIT_LOG_SIZE 1500 +#define KUNIT_LOG_SIZE 2048 /* Maximum size of parameter description string. */ #define KUNIT_PARAM_DESC_SIZE 128 -- 2.37.2

2 years, 1 month

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[PATCH v5 0/6] RISC-V Hardware Probing User Interface

by Evan Green

There's been a bunch of off-list discussions about this, including at Plumbers. The original plan was to do something involving providing an ISA string to userspace, but ISA strings just aren't sufficient for a stable ABI any more: in order to parse an ISA string users need the version of the specifications that the string is written to, the version of each extension (sometimes at a finer granularity than the RISC-V releases/versions encode), and the expected use case for the ISA string (ie, is it a U-mode or M-mode string). That's a lot of complexity to try and keep ABI compatible and it's probably going to continue to grow, as even if there's no more complexity in the specifications we'll have to deal with the various ISA string parsing oddities that end up all over userspace. Instead this patch set takes a very different approach and provides a set of key/value pairs that encode various bits about the system. The big advantage here is that we can clearly define what these mean so we can ensure ABI stability, but it also allows us to encode information that's unlikely to ever appear in an ISA string (see the misaligned access performance, for example). The resulting interface looks a lot like what arm64 and x86 do, and will hopefully fit well into something like ACPI in the future. The actual user interface is a syscall, with a vDSO function in front of it. The vDSO function can answer some queries without a syscall at all, and falls back to the syscall for cases it doesn't have answers to. Currently we prepopulate it with an array of answers for all keys and a CPU set of "all CPUs". This can be adjusted as necessary to provide fast answers to the most common queries. An example series in glibc exposing this syscall and using it in an ifunc selector for memcpy can be found at [1]. I'm about to send a v2 of that series out that incorporates the vDSO function. I was asked about the performance delta between this and something like sysfs. I created a small test program [2] and ran it on a Nezha D1 Allwinner board. Doing each operation 100000 times and dividing, these operations take the following amount of time: - open()+read()+close() of /sys/kernel/cpu_byteorder: 3.8us - access("/sys/kernel/cpu_byteorder", R_OK): 1.3us - riscv_hwprobe() vDSO and syscall: .0094us - riscv_hwprobe() vDSO with no syscall: 0.0091us These numbers get farther apart if we query multiple keys, as sysfs will scale linearly with the number of keys, where the dedicated syscall stays the same. To frame these numbers, I also did a tight fork/exec/wait loop, which I measured as 4.8ms. So doing 4 open/read/close operations is a delta of about 0.3%, versus a single vDSO call is a delta of essentially zero. [1] https://public-inbox.org/libc-alpha/20230206194819.1679472-1-evan@rivosinc.… [2] https://pastebin.com/x84NEKaS Changes in v5: - Added tags - Fixed misuse of ISA_EXT_c as bitmap, changed to use riscv_isa_extension_available() (Heiko, Conor) - Document the alternatives approach in the commit message (Conor and Heiko). - Fix __init call warnings by making probe_vendor_features() and thead_feature_probe_func() __init_or_module. - Fixed compat vdso compilation failure (lkp). Changes in v4: - Used real types in syscall prototypes (Arnd) - Fixed static line break in do_riscv_hwprobe() (Conor) - Added newlines between documentation lists (Conor) - Crispen up size types to size_t, and cpu indices to int (Joe) - Fix copy_from_user() return logic bug (found via kselftests!) - Add __user to SYSCALL_DEFINE() to fix warning - More newlines in BASE_BEHAVIOR_IMA documentation (Conor) - Add newlines to CPUPERF_0 documentation (Conor) - Add UNSUPPORTED value (Conor) - Switched from DT to alternatives-based probing (Rob) - Crispen up cpu index type to always be int (Conor) - Fixed selftests commit description, no more tiny libc (Mark Brown) - Fixed selftest syscall prototype types to match v4. - Added a prototype to fix -Wmissing-prototype warning (lkp(a)intel.com) - Fixed rv32 build failure (lkp(a)intel.com) - Make vdso prototype match syscall types update Changes in v3: - Updated copyright date in cpufeature.h - Fixed typo in cpufeature.h comment (Conor) - Refactored functions so that kernel mode can query too, in preparation for the vDSO data population. - Changed the vendor/arch/imp IDs to return a value of -1 on mismatch rather than failing the whole call. - Const cpumask pointer in hwprobe_mid() - Embellished documentation WRT cpu_set and the returned values. - Renamed hwprobe_mid() to hwprobe_arch_id() (Conor) - Fixed machine ID doc warnings, changed elements to c:macro:. - Completed dangling unistd.h comment (Conor) - Fixed line breaks and minor logic optimization (Conor). - Use riscv_cached_mxxxid() (Conor) - Refactored base ISA behavior probe to allow kernel probing as well, in prep for vDSO data initialization. - Fixed doc warnings in IMA text list, use :c:macro:. - Have hwprobe_misaligned return int instead of long. - Constify cpumask pointer in hwprobe_misaligned() - Fix warnings in _PERF_O list documentation, use :c:macro:. - Move include cpufeature.h to misaligned patch. - Fix documentation mismatch for RISCV_HWPROBE_KEY_CPUPERF_0 (Conor) - Use for_each_possible_cpu() instead of NR_CPUS (Conor) - Break early in misaligned access iteration (Conor) - Increase MISALIGNED_MASK from 2 bits to 3 for possible UNSUPPORTED future value (Conor) - Introduced vDSO function Changes in v2: - Factored the move of struct riscv_cpuinfo to its own header - Changed the interface to look more like poll(). Rather than supplying key_offset and getting back an array of values with numerically contiguous keys, have the user pre-fill the key members of the array, and the kernel will fill in the corresponding values. For any key it doesn't recognize, it will set the key of that element to -1. This allows usermode to quickly ask for exactly the elements it cares about, and not get bogged down in a back and forth about newer keys that older kernels might not recognize. In other words, the kernel can communicate that it doesn't recognize some of the keys while still providing the data for the keys it does know. - Added a shortcut to the cpuset parameters that if a size of 0 and NULL is provided for the CPU set, the kernel will use a cpu mask of all online CPUs. This is convenient because I suspect most callers will only want to act on a feature if it's supported on all CPUs, and it's a headache to dynamically allocate an array of all 1s, not to mention a waste to have the kernel loop over all of the offline bits. - Fixed logic error in if(of_property_read_string...) that caused crash - Include cpufeature.h in cpufeature.h to avoid undeclared variable warning. - Added a _MASK define - Fix random checkpatch complaints - Updated the selftests to the new API and added some more. - Fixed indentation, comments in .S, and general checkpatch complaints. Evan Green (6): RISC-V: Move struct riscv_cpuinfo to new header RISC-V: Add a syscall for HW probing RISC-V: hwprobe: Add support for RISCV_HWPROBE_BASE_BEHAVIOR_IMA RISC-V: hwprobe: Support probing of misaligned access performance selftests: Test the new RISC-V hwprobe interface RISC-V: Add hwprobe vDSO function and data Documentation/riscv/hwprobe.rst | 86 +++++++ Documentation/riscv/index.rst | 1 + arch/riscv/Kconfig | 1 + arch/riscv/errata/thead/errata.c | 10 + arch/riscv/include/asm/alternative.h | 5 + arch/riscv/include/asm/cpufeature.h | 23 ++ arch/riscv/include/asm/hwprobe.h | 13 + arch/riscv/include/asm/syscall.h | 4 + arch/riscv/include/asm/vdso/data.h | 17 ++ arch/riscv/include/asm/vdso/gettimeofday.h | 8 + arch/riscv/include/uapi/asm/hwprobe.h | 37 +++ arch/riscv/include/uapi/asm/unistd.h | 9 + arch/riscv/kernel/alternative.c | 19 ++ arch/riscv/kernel/compat_vdso/Makefile | 2 +- arch/riscv/kernel/cpu.c | 8 +- arch/riscv/kernel/cpufeature.c | 3 + arch/riscv/kernel/smpboot.c | 1 + arch/riscv/kernel/sys_riscv.c | 225 +++++++++++++++++- arch/riscv/kernel/vdso.c | 6 - arch/riscv/kernel/vdso/Makefile | 4 + arch/riscv/kernel/vdso/hwprobe.c | 52 ++++ arch/riscv/kernel/vdso/sys_hwprobe.S | 15 ++ arch/riscv/kernel/vdso/vdso.lds.S | 3 + tools/testing/selftests/Makefile | 1 + tools/testing/selftests/riscv/Makefile | 58 +++++ .../testing/selftests/riscv/hwprobe/Makefile | 10 + .../testing/selftests/riscv/hwprobe/hwprobe.c | 90 +++++++ .../selftests/riscv/hwprobe/sys_hwprobe.S | 12 + 28 files changed, 709 insertions(+), 14 deletions(-) create mode 100644 Documentation/riscv/hwprobe.rst create mode 100644 arch/riscv/include/asm/cpufeature.h create mode 100644 arch/riscv/include/asm/hwprobe.h create mode 100644 arch/riscv/include/asm/vdso/data.h create mode 100644 arch/riscv/include/uapi/asm/hwprobe.h create mode 100644 arch/riscv/kernel/vdso/hwprobe.c create mode 100644 arch/riscv/kernel/vdso/sys_hwprobe.S create mode 100644 tools/testing/selftests/riscv/Makefile create mode 100644 tools/testing/selftests/riscv/hwprobe/Makefile create mode 100644 tools/testing/selftests/riscv/hwprobe/hwprobe.c create mode 100644 tools/testing/selftests/riscv/hwprobe/sys_hwprobe.S -- 2.25.1

2 years, 1 month

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[GIT PULL] Kselftest fixes update for Linux 6.3-rc5

by Shuah Khan

Hi Linus, Please pull the following Kselftest fixes update for Linux 6.3-rc5. This Kselftest fixes update for Linux 6.3-rc5 consists of one single fix for sigaltstack test -Wuninitialized warning found when building with clang. diff is attached. thanks, -- Shuah ---------------------------------------------------------------- The following changes since commit 624c60f326c6e5a80b008e8a5c7feffe8c27dc72: selftests: fix LLVM build for i386 and x86_64 (2023-03-10 13:41:10 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-fixes-6.3-rc5 for you to fetch changes up to 05107edc910135d27fe557267dc45be9630bf3dd: selftests: sigaltstack: fix -Wuninitialized (2023-03-20 17:28:31 -0600) ---------------------------------------------------------------- linux-kselftest-fixes-6.3-rc5 This Kselftest fixes update for Linux 6.3-rc5 consists of one single fix for sigaltstack test -Wuninitialized warning found when building with clang. ---------------------------------------------------------------- Nick Desaulniers (1): selftests: sigaltstack: fix -Wuninitialized .../selftests/sigaltstack/current_stack_pointer.h | 23 ++++++++++++++++++++++ tools/testing/selftests/sigaltstack/sas.c | 7 +------ 2 files changed, 24 insertions(+), 6 deletions(-) create mode 100644 tools/testing/selftests/sigaltstack/current_stack_pointer. ----------------------------------------------------------------

2 years, 1 month

2
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[PATCH] Refactor 'peeksiginfo' ptrace test part

by Ivan Orlov

peeksiginfo creates an array of 10 instances of 'siginfo_t', but actually uses only one. This patch will reduce amount of memory on the stack used by the peeksiginfo test. Signed-off-by: Ivan Orlov <ivan.orlov0322(a)gmail.com> --- tools/testing/selftests/ptrace/peeksiginfo.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/tools/testing/selftests/ptrace/peeksiginfo.c b/tools/testing/selftests/ptrace/peeksiginfo.c index 54900657eb44..a6884f66dc01 100644 --- a/tools/testing/selftests/ptrace/peeksiginfo.c +++ b/tools/testing/selftests/ptrace/peeksiginfo.c @@ -151,7 +151,7 @@ int check_direct_path(pid_t child, int shared, int nr) int main(int argc, char *argv[]) { - siginfo_t siginfo[SIGNR]; + siginfo_t siginfo; int i, exit_code = 1; sigset_t blockmask; pid_t child; @@ -176,13 +176,13 @@ int main(int argc, char *argv[]) /* Send signals in process-wide and per-thread queues */ for (i = 0; i < SIGNR; i++) { - siginfo->si_code = TEST_SICODE_SHARE; - siginfo->si_int = i; - sys_rt_sigqueueinfo(child, SIGRTMIN, siginfo); + siginfo.si_code = TEST_SICODE_SHARE; + siginfo.si_int = i; + sys_rt_sigqueueinfo(child, SIGRTMIN, &siginfo); - siginfo->si_code = TEST_SICODE_PRIV; - siginfo->si_int = i; - sys_rt_tgsigqueueinfo(child, child, SIGRTMIN, siginfo); + siginfo.si_code = TEST_SICODE_PRIV; + siginfo.si_int = i; + sys_rt_tgsigqueueinfo(child, child, SIGRTMIN, &siginfo); } if (sys_ptrace(PTRACE_ATTACH, child, NULL, NULL) == -1) -- 2.34.1

2 years, 1 month

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