December 2024 - Linux-kselftest-mirror

[PATCH for-next] selftests/alsa: Fix circular dependency involving global-timer

by Li Zhijian

The pattern rule `$(OUTPUT)/%: %.c` inadvertently included a circular dependency on the global-timer target due to its inclusion in $(TEST_GEN_PROGS_EXTENDED). This resulted in a circular dependency warning during the build process. To resolve this, the dependency on $(TEST_GEN_PROGS_EXTENDED) has been replaced with an explicit dependency on $(OUTPUT)/libatest.so. This change ensures that libatest.so is built before any other targets that require it, without creating a circular dependency. This fix addresses the following warning: make[4]: Entering directory 'tools/testing/selftests/alsa' make[4]: Circular default_modconfig/kselftest/alsa/global-timer <- default_modconfig/kselftest/alsa/global-timer dependency dropped. make[4]: Nothing to be done for 'all'. make[4]: Leaving directory 'tools/testing/selftests/alsa' Cc: Mark Brown <broonie(a)kernel.org> Cc: Jaroslav Kysela <perex(a)perex.cz> Cc: Takashi Iwai <tiwai(a)suse.com> Cc: Shuah Khan <shuah(a)kernel.org> Signed-off-by: Li Zhijian <lizhijian(a)fujitsu.com> --- Cc: linux-sound(a)vger.kernel.org Cc: linux-kselftest(a)vger.kernel.org Cc: linux-kernel(a)vger.kernel.org --- tools/testing/selftests/alsa/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/alsa/Makefile b/tools/testing/selftests/alsa/Makefile index 944279160fed..8dab90ad22bb 100644 --- a/tools/testing/selftests/alsa/Makefile +++ b/tools/testing/selftests/alsa/Makefile @@ -27,5 +27,5 @@ include ../lib.mk $(OUTPUT)/libatest.so: conf.c alsa-local.h $(CC) $(CFLAGS) -shared -fPIC $< $(LDLIBS) -o $@ -$(OUTPUT)/%: %.c $(TEST_GEN_PROGS_EXTENDED) alsa-local.h +$(OUTPUT)/%: %.c $(OUTPUT)/libatest.so alsa-local.h $(CC) $(CFLAGS) $< $(LDLIBS) -latest -o $@ -- 2.44.0

4 months

2
1
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[PATCH] selftests/mm: Added new test cases to the migration test

by Donet Tom

Added three new test cases to the migration tests: 1. Shared anon THP migration test This test will mmap shared anon memory, madvise it to MADV_HUGEPAGE, then do migration entry testing. One thread will move pages back and forth between nodes whilst other threads try and access them. 2. Private anon hugetlb migration test This test will mmap private anon hugetlb memory and then do the migration entry testing. 3. Shared anon hugetlb migration test This test will mmap shared anon hugetlb memory and then do the migration entry testing. Test results ============ # ./tools/testing/selftests/mm/migration TAP version 13 1..6 # Starting 6 tests from 1 test cases. # RUN migration.private_anon ... # OK migration.private_anon ok 1 migration.private_anon # RUN migration.shared_anon ... # OK migration.shared_anon ok 2 migration.shared_anon # RUN migration.private_anon_thp ... # OK migration.private_anon_thp ok 3 migration.private_anon_thp # RUN migration.shared_anon_thp ... # OK migration.shared_anon_thp ok 4 migration.shared_anon_thp # RUN migration.private_anon_htlb ... # OK migration.private_anon_htlb ok 5 migration.private_anon_htlb # RUN migration.shared_anon_htlb ... # OK migration.shared_anon_htlb ok 6 migration.shared_anon_htlb # PASSED: 6 / 6 tests passed. # Totals: pass:6 fail:0 xfail:0 xpass:0 skip:0 error:0 # Signed-off-by: Donet Tom <donettom(a)linux.ibm.com> --- tools/testing/selftests/mm/migration.c | 99 ++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) diff --git a/tools/testing/selftests/mm/migration.c b/tools/testing/selftests/mm/migration.c index 64bcbb7151cf..1e3a595fbf01 100644 --- a/tools/testing/selftests/mm/migration.c +++ b/tools/testing/selftests/mm/migration.c @@ -204,4 +204,103 @@ TEST_F_TIMEOUT(migration, private_anon_thp, 2*RUNTIME) ASSERT_EQ(pthread_cancel(self->threads[i]), 0); } +/* + * migration test with shared anon THP page + */ + +TEST_F_TIMEOUT(migration, shared_anon_thp, 2*RUNTIME) +{ + pid_t pid; + uint64_t *ptr; + int i; + + if (self->nthreads < 2 || self->n1 < 0 || self->n2 < 0) + SKIP(return, "Not enough threads or NUMA nodes available"); + + ptr = mmap(NULL, 2 * TWOMEG, PROT_READ | PROT_WRITE, + MAP_SHARED | MAP_ANONYMOUS, -1, 0); + ASSERT_NE(ptr, MAP_FAILED); + + ptr = (uint64_t *) ALIGN((uintptr_t) ptr, TWOMEG); + ASSERT_EQ(madvise(ptr, TWOMEG, MADV_HUGEPAGE), 0); + + memset(ptr, 0xde, TWOMEG); + for (i = 0; i < self->nthreads - 1; i++) { + pid = fork(); + if (!pid) { + prctl(PR_SET_PDEATHSIG, SIGHUP); + /* Parent may have died before prctl so check now. */ + if (getppid() == 1) + kill(getpid(), SIGHUP); + access_mem(ptr); + } else { + self->pids[i] = pid; + } + } + + ASSERT_EQ(migrate(ptr, self->n1, self->n2), 0); + for (i = 0; i < self->nthreads - 1; i++) + ASSERT_EQ(kill(self->pids[i], SIGTERM), 0); +} + +/* + * migration test with private anon hugetlb page + */ +TEST_F_TIMEOUT(migration, private_anon_htlb, 2*RUNTIME) +{ + uint64_t *ptr; + int i; + + if (self->nthreads < 2 || self->n1 < 0 || self->n2 < 0) + SKIP(return, "Not enough threads or NUMA nodes available"); + + ptr = mmap(NULL, TWOMEG, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0); + ASSERT_NE(ptr, MAP_FAILED); + + memset(ptr, 0xde, TWOMEG); + for (i = 0; i < self->nthreads - 1; i++) + if (pthread_create(&self->threads[i], NULL, access_mem, ptr)) + perror("Couldn't create thread"); + + ASSERT_EQ(migrate(ptr, self->n1, self->n2), 0); + for (i = 0; i < self->nthreads - 1; i++) + ASSERT_EQ(pthread_cancel(self->threads[i]), 0); +} + +/* + * migration test with shared anon hugetlb page + */ +TEST_F_TIMEOUT(migration, shared_anon_htlb, 2*RUNTIME) +{ + pid_t pid; + uint64_t *ptr; + int i; + + if (self->nthreads < 2 || self->n1 < 0 || self->n2 < 0) + SKIP(return, "Not enough threads or NUMA nodes available"); + + ptr = mmap(NULL, TWOMEG, PROT_READ | PROT_WRITE, + MAP_SHARED | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0); + ASSERT_NE(ptr, MAP_FAILED); + + memset(ptr, 0xde, TWOMEG); + for (i = 0; i < self->nthreads - 1; i++) { + pid = fork(); + if (!pid) { + prctl(PR_SET_PDEATHSIG, SIGHUP); + /* Parent may have died before prctl so check now. */ + if (getppid() == 1) + kill(getpid(), SIGHUP); + access_mem(ptr); + } else { + self->pids[i] = pid; + } + } + + ASSERT_EQ(migrate(ptr, self->n1, self->n2), 0); + for (i = 0; i < self->nthreads - 1; i++) + ASSERT_EQ(kill(self->pids[i], SIGTERM), 0); +} + TEST_HARNESS_MAIN -- 2.37.2

4 months

2
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[PATCH bpf-next v5 0/5] Support eliding map lookup nullness

by Daniel Xu

This patch allows progs to elide a null check on statically known map lookup keys. In other words, if the verifier can statically prove that the lookup will be in-bounds, allow the prog to drop the null check. This is useful for two reasons: 1. Large numbers of nullness checks (especially when they cannot fail) unnecessarily pushes prog towards BPF_COMPLEXITY_LIMIT_JMP_SEQ. 2. It forms a tighter contract between programmer and verifier. For (1), bpftrace is starting to make heavier use of percpu scratch maps. As a result, for user scripts with large number of unrolled loops, we are starting to hit jump complexity verification errors. These percpu lookups cannot fail anyways, as we only use static key values. Eliding nullness probably results in less work for verifier as well. For (2), percpu scratch maps are often used as a larger stack, as the currrent stack is limited to 512 bytes. In these situations, it is desirable for the programmer to express: "this lookup should never fail, and if it does, it means I messed up the code". By omitting the null check, the programmer can "ask" the verifier to double check the logic. Changes in v5: * Dropped all acks * Use s64 instead of long for const_map_key * Ensure stack slot contains spilled reg before accessing spilled_ptr * Ensure spilled reg is a scalar before accessing tnum const value * Fix verifier selftest for 32-bit write to write at 8 byte alignment to ensure spill is tracked * Introduce more precise tracking of helper stack accesses * Do constant map key extraction as part of helper argument processing and then remove duplicated stack checks * Use ret_flag instead of regs[BPF_REG_0].type * Handle STACK_ZERO * Fix bug in bpf_load_hdr_opt() arg annotation Changes in v4: * Only allow for CAP_BPF * Add test for stack growing upwards * Improve comment about stack growing upwards Changes in v3: * Check if stack is (erroneously) growing upwards * Mention in commit message why existing tests needed change Changes in v2: * Added a check for when R2 is not a ptr to stack * Added a check for when stack is uninitialized (no stack slot yet) * Updated existing tests to account for null elision * Added test case for when R2 can be both const and non-const Daniel Xu (5): bpf: verifier: Add missing newline on verbose() call bpf: tcp: Mark bpf_load_hdr_opt() arg2 as read-write bpf: verifier: Refactor helper access type tracking bpf: verifier: Support eliding map lookup nullness bpf: selftests: verifier: Add nullness elision tests kernel/bpf/verifier.c | 127 ++++++++--- net/core/filter.c | 2 +- .../testing/selftests/bpf/progs/dynptr_fail.c | 6 +- tools/testing/selftests/bpf/progs/iters.c | 14 +- .../selftests/bpf/progs/map_kptr_fail.c | 2 +- .../selftests/bpf/progs/test_global_func10.c | 2 +- .../selftests/bpf/progs/uninit_stack.c | 29 --- .../bpf/progs/verifier_array_access.c | 214 ++++++++++++++++++ .../bpf/progs/verifier_basic_stack.c | 2 +- .../selftests/bpf/progs/verifier_const_or.c | 4 +- .../progs/verifier_helper_access_var_len.c | 12 +- .../selftests/bpf/progs/verifier_int_ptr.c | 2 +- .../selftests/bpf/progs/verifier_map_in_map.c | 2 +- .../selftests/bpf/progs/verifier_mtu.c | 2 +- .../selftests/bpf/progs/verifier_raw_stack.c | 4 +- .../selftests/bpf/progs/verifier_unpriv.c | 2 +- .../selftests/bpf/progs/verifier_var_off.c | 8 +- tools/testing/selftests/bpf/verifier/calls.c | 2 +- .../testing/selftests/bpf/verifier/map_kptr.c | 2 +- 19 files changed, 342 insertions(+), 96 deletions(-) -- 2.46.0

4 months

5
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[PATCH v1 0/4] KVM selftests enhancements

by Manali Shukla

This series was prompted by feedback given in [1]. Patch 1 : Adds safe_hlt() and cli() helpers. Patch 2, 3: Adds an interface to read vcpu stat in selftest. Adds a macro to generate compiler error to detect typos at compile time while parsing vcpu and vm stats. Patch 4 : Fix few of the selftests based on newly defined macro. This series was split from the Idle HLT intercept support series [2] because the series has a few changes in the vm_get_stat() interface as suggested in [1] and a few changes in two of the self-tests (nx_huge_pages_test.c and dirty_log_page_splitting_test.c) which use vm_get_stat() functionality to retrieve specified VM stats. These changes are unrelated to the Idle HLT intercept support series [2]. [1] https://lore.kernel.org/kvm/ZruDweYzQRRcJeTO@google.com/T/#m7cd7a110f0fcff9… [2] https://lore.kernel.org/kvm/ZruDweYzQRRcJeTO@google.com/T/#m6c67ca8ccb226e5… Manali Shukla (4): KVM: selftests: Add safe_halt() and cli() helpers to common code KVM: selftests: Add an interface to read the data of named vcpu stat KVM: selftests: convert vm_get_stat to macro KVM: selftests: Replace previously used vm_get_stat() to macro .../testing/selftests/kvm/include/kvm_util.h | 83 +++++++++++++++++-- .../kvm/include/x86_64/kvm_util_arch.h | 52 ++++++++++++ .../selftests/kvm/include/x86_64/processor.h | 17 ++++ tools/testing/selftests/kvm/lib/kvm_util.c | 40 +++++++++ .../x86_64/dirty_log_page_splitting_test.c | 6 +- .../selftests/kvm/x86_64/nx_huge_pages_test.c | 4 +- 6 files changed, 191 insertions(+), 11 deletions(-) base-commit: c8d430db8eec7d4fd13a6bea27b7086a54eda6da -- 2.34.1

4 months

2
9
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[PATCH v3 0/7] Enhance event delivery error handling

by Ivan Orlov

Currently, the unhandleable vectoring (e.g. when guest accesses MMIO during vectoring) is handled differently on VMX and SVM: on VMX KVM returns internal error, when SVM goes into infinite loop trying to deliver an event again and again. This patch series eliminates this difference by returning a KVM internal error when KVM can't emulate during vectoring for both VMX and SVM. Also, introduce a selftest test case which covers the error handling mentioned above. V1 -> V2: - Make commit messages more brief, avoid using pronouns - Extract SVM error handling into a separate commit - Introduce a new X86EMUL_ return type and detect the unhandleable vectoring error in vendor-specific check_emulate_instruction instead of handling it in the common MMU code (which is specific for cached MMIO) V2 -> V3: - Make the new X86EMUL_ code more generic - Prohibit any emulation during vectoring if it is due to an intercepted #PF - Add a new patch for checking whether unprotect & retry is possible before exiting to userspace due to unhandleable vectoring - Codestyle fixes Ivan Orlov (7): KVM: x86: Add function for vectoring error generation KVM: x86: Add emulation status for unhandleable vectoring KVM: x86: Unprotect & retry before unhandleable vectoring check KVM: VMX: Handle vectoring error in check_emulate_instruction KVM: SVM: Handle vectoring error in check_emulate_instruction selftests: KVM: extract lidt into helper function selftests: KVM: Add test case for MMIO during vectoring arch/x86/include/asm/kvm_host.h | 11 +++- arch/x86/kvm/kvm_emulate.h | 2 + arch/x86/kvm/svm/svm.c | 6 +++ arch/x86/kvm/vmx/vmx.c | 30 ++++------- arch/x86/kvm/x86.c | 31 +++++++++++ .../selftests/kvm/include/x86_64/processor.h | 7 +++ .../selftests/kvm/set_memory_region_test.c | 53 ++++++++++++++++++- .../selftests/kvm/x86_64/sev_smoke_test.c | 2 +- 8 files changed, 117 insertions(+), 25 deletions(-) -- 2.43.0

4 months

3
17
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[PATCH v3 0/4] Migrate PCI Endpoint Subsystem tests to Kselftest

by Manivannan Sadhasivam

Hi, This series carries forward the effort to add Kselftest for PCI Endpoint Subsystem started by Aman Gupta [1] a while ago. I reworked the initial version based on another patch that fixes the return values of IOCTLs in pci_endpoint_test driver and did many cleanups. Since the resulting work modified the initial version substantially, I took over the authorship. This series also incorporates the review comment by Shuah Khan [2] to move the existing tests from 'tools/pci' to 'tools/testing/kselftest/pci_endpoint' before migrating to Kselftest framework. I made sure that the tests are executable in each commit and updated documentation accordingly. NOTE: Patch 1 is strictly not related to this series, but necessary to execute Kselftests with Qualcomm Endpoint devices. So this can be merged separately. - Mani [1] https://lore.kernel.org/linux-pci/20221007053934.5188-1-aman1.gupta@samsung… [2] https://lore.kernel.org/linux-pci/b2a5db97-dc59-33ab-71cd-f591e0b1b34d@linu… Changes in v3: * Collected tags. * Added a note about failing testcase 10 and command to skip it in documentation. * Removed Aman Gupta and Padmanabhan Rajanbabu from CC as their addresses are bouncing. Changes in v2: * Added a patch that fixes return values of IOCTL in pci_endpoint_test driver * Moved the existing tests to new location before migrating * Added a fix for BARs on Qcom devices * Updated documentation and also added fixture variants for memcpy & DMA modes Manivannan Sadhasivam (4): PCI: qcom-ep: Mark BAR0/BAR2 as 64bit BARs and BAR1/BAR3 as RESERVED misc: pci_endpoint_test: Fix the return value of IOCTL selftests: Move PCI Endpoint tests from tools/pci to Kselftests selftests: pci_endpoint: Migrate to Kselftest framework Documentation/PCI/endpoint/pci-test-howto.rst | 152 ++++------- MAINTAINERS | 2 +- drivers/misc/pci_endpoint_test.c | 236 ++++++++--------- drivers/pci/controller/dwc/pcie-qcom-ep.c | 4 + tools/pci/Build | 1 - tools/pci/Makefile | 58 ---- tools/pci/pcitest.c | 250 ------------------ tools/pci/pcitest.sh | 72 ----- tools/testing/selftests/Makefile | 1 + .../testing/selftests/pci_endpoint/.gitignore | 2 + tools/testing/selftests/pci_endpoint/Makefile | 7 + tools/testing/selftests/pci_endpoint/config | 4 + .../pci_endpoint/pci_endpoint_test.c | 186 +++++++++++++ 13 files changed, 373 insertions(+), 602 deletions(-) delete mode 100644 tools/pci/Build delete mode 100644 tools/pci/Makefile delete mode 100644 tools/pci/pcitest.c delete mode 100644 tools/pci/pcitest.sh create mode 100644 tools/testing/selftests/pci_endpoint/.gitignore create mode 100644 tools/testing/selftests/pci_endpoint/Makefile create mode 100644 tools/testing/selftests/pci_endpoint/config create mode 100644 tools/testing/selftests/pci_endpoint/pci_endpoint_test.c -- 2.25.1

4 months, 1 week

4
13
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[PATCH v3 0/9] arm64: Support 2024 dpISA extensions

by Mark Brown

The 2024 architecture release includes a number of data processing extensions, mostly SVE and SME additions with a few others. These are all very straightforward extensions which add instructions but no architectural state so only need hwcaps and exposing of the ID registers to KVM guests and userspace. Signed-off-by: Mark Brown <broonie(a)kernel.org> --- Changes in v3: - Commit log update for the hwcap test. - Link to v2: https://lore.kernel.org/r/20241030-arm64-2024-dpisa-v2-0-b6601a15d2a5@kerne… Changes in v2: - Filter KVM guest visible bitfields in ID_AA64ISAR3_EL1 to only those we make writeable. - Link to v1: https://lore.kernel.org/r/20241028-arm64-2024-dpisa-v1-0-a38d08b008a8@kerne… --- Mark Brown (9): arm64/sysreg: Update ID_AA64PFR2_EL1 to DDI0601 2024-09 arm64/sysreg: Update ID_AA64ISAR3_EL1 to DDI0601 2024-09 arm64/sysreg: Update ID_AA64FPFR0_EL1 to DDI0601 2024-09 arm64/sysreg: Update ID_AA64ZFR0_EL1 to DDI0601 2024-09 arm64/sysreg: Update ID_AA64SMFR0_EL1 to DDI0601 2024-09 arm64/sysreg: Update ID_AA64ISAR2_EL1 to DDI0601 2024-09 arm64/hwcap: Describe 2024 dpISA extensions to userspace KVM: arm64: Allow control of dpISA extensions in ID_AA64ISAR3_EL1 kselftest/arm64: Add 2024 dpISA extensions to hwcap test Documentation/arch/arm64/elf_hwcaps.rst | 51 ++++++ arch/arm64/include/asm/hwcap.h | 17 ++ arch/arm64/include/uapi/asm/hwcap.h | 17 ++ arch/arm64/kernel/cpufeature.c | 35 ++++ arch/arm64/kernel/cpuinfo.c | 17 ++ arch/arm64/kvm/sys_regs.c | 6 +- arch/arm64/tools/sysreg | 87 +++++++++- tools/testing/selftests/arm64/abi/hwcap.c | 273 +++++++++++++++++++++++++++++- 8 files changed, 493 insertions(+), 10 deletions(-) --- base-commit: 40384c840ea1944d7c5a392e8975ed088ecf0b37 change-id: 20241008-arm64-2024-dpisa-8091074a7f48 Best regards, -- Mark Brown <broonie(a)kernel.org>

4 months, 1 week

2
17
0 0

[PATCH v2 0/6] selftests: kvm: s390: Reject invalid ioctls on ucontrol VMs

by Christoph Schlameuss

This patch series adds more test case issuing ioctls to ucontrol VMs and its floating interrupt controller. The test cases trigger three possible null pointer dereferences within the handling of the KVM_DEV_FLIC_APF_ENABLE, KVM_DEV_FLIC_APF_DISABLE_WAIT and KVM_SET_GSI_ROUTING ioctl. All of these issues do only exist on ucontrol VMs. Fixes for the issues are included within the patch series. v2: - added documentation changes - simplify uc_flic_attrs; remove .getrc and .setrc from uc_flic_attrs (Thanks Claudio) Christoph Schlameuss (6): kvm: s390: Reject setting flic pfault attributes on ucontrol VMs selftests: kvm: s390: Add ucontrol flic attr selftests kvm: s390: Reject KVM_SET_GSI_ROUTING on ucontrol VMs selftests: kvm: s390: Add ucontrol gis routing test selftests: kvm: s390: Streamline uc_skey test to issue iske after sske selftests: kvm: s390: Add has device attr check to uc_attr_mem_limit selftest Documentation/virt/kvm/api.rst | 3 + Documentation/virt/kvm/devices/s390_flic.rst | 4 + arch/s390/kvm/interrupt.c | 6 + .../selftests/kvm/s390x/ucontrol_test.c | 194 ++++++++++++++++-- 4 files changed, 189 insertions(+), 18 deletions(-) -- 2.47.1

4 months, 1 week

3
16
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[PATCH] selftests/bpf: Fix compilation error in get_uprobe_offset()

by Jerome Marchand

In get_uprobe_offset(), the call to procmap_query() use the constant PROCMAP_QUERY_VMA_EXECUTABLE, even if PROCMAP_QUERY is not defined. Define PROCMAP_QUERY_VMA_EXECUTABLE when PROCMAP_QUERY isn't. Fixes: 4e9e07603ecd ("selftests/bpf: make use of PROCMAP_QUERY ioctl if available") Signed-off-by: Jerome Marchand <jmarchan(a)redhat.com> --- tools/testing/selftests/bpf/trace_helpers.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/testing/selftests/bpf/trace_helpers.c b/tools/testing/selftests/bpf/trace_helpers.c index 2d742fdac6b9..51fa29e0e083 100644 --- a/tools/testing/selftests/bpf/trace_helpers.c +++ b/tools/testing/selftests/bpf/trace_helpers.c @@ -293,6 +293,9 @@ static int procmap_query(int fd, const void *addr, __u32 query_flags, size_t *st return 0; } #else + +#define PROCMAP_QUERY_VMA_EXECUTABLE 0x04 + static int procmap_query(int fd, const void *addr, __u32 query_flags, size_t *start, size_t *offset, int *flags) { return -EOPNOTSUPP; -- 2.47.1

4 months, 1 week

4
3
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[PATCH for-next 0/2] selftests: Fix run_tests and install for net TARGET

by Li Zhijian

This patch set intends to fix the errors in install and run_tests when 'O=' is specified. such as `make O=/path/to/build TARGETS=net kselftest-install` Li Zhijian (2): selftests/Makefile: Create BUILD_TARGET directory for INSTALL_DEP_TARGETS selftests/Makefile: add INSTALL_DEP_TARGETS to run_tests tools/testing/selftests/Makefile | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) -- 2.44.0

4 months, 1 week

1
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Linux-kselftest-mirror December 2024