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[PATCH] arm64: cpufeature: Fix truncating a feature value

by Suzuki K Poulose

A signed feature value is truncated to turn to an unsigned value causing bad state in the system wide infrastructure. This affects the discovery of FP/ASIMD support on arm64. Fix this by making sure we cast it properly. Fixes: 4f0a606bce5ec ("arm64: cpufeature: Track unsigned fields") Cc: stable(a)vger.kernel.org # v4.4 Cc: Will Deacon <will(a)kernel.org> Cc: Mark Rutland <mark.rutland(a)arm.com> Cc: Catalin Marinas <catalin.marinas(a)arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose(a)arm.com> --- arch/arm64/include/asm/cpufeature.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index 0a66f8241f18..9eb0d8072dd9 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h @@ -151,8 +151,8 @@ static inline u64 arm64_ftr_mask(struct arm64_ftr_bits *ftrp) static inline s64 arm64_ftr_value(struct arm64_ftr_bits *ftrp, u64 val) { return ftrp->sign ? - cpuid_feature_extract_field_width(val, ftrp->shift, ftrp->width) : - cpuid_feature_extract_unsigned_field_width(val, ftrp->shift, ftrp->width); + (s64)cpuid_feature_extract_field_width(val, ftrp->shift, ftrp->width) : + (s64)cpuid_feature_extract_unsigned_field_width(val, ftrp->shift, ftrp->width); } static inline bool id_aa64mmfr0_mixed_endian_el0(u64 mmfr0) -- 2.21.0

5 years, 9 months

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[PATCH] ath10k: Correct error check of dma_map_single()

by Bjorn Andersson

The return value of dma_map_single() should be checked for errors using dma_mapping_error(), rather than testing for NULL. Correct this. Fixes: 1807da49733e ("ath10k: wmi: add management tx by reference support over wmi") Cc: stable(a)vger.kernel.org Reported-by: Niklas Cassel <niklas.cassel(a)linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson(a)linaro.org> --- drivers/net/wireless/ath/ath10k/mac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 3d2c8fcba952..a01868938692 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -3904,7 +3904,7 @@ void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work) ar->running_fw->fw_file.fw_features)) { paddr = dma_map_single(ar->dev, skb->data, skb->len, DMA_TO_DEVICE); - if (!paddr) + if (dma_mapping_error(ar->dev, paddr)) continue; ret = ath10k_wmi_mgmt_tx_send(ar, skb, paddr); if (ret) { -- 2.23.0

5 years, 9 months

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[PATCH 1/2] USB: serial: ti_usb_3410_5052: fix port-close races

by Johan Hovold

Fix races between closing a port and opening or closing another port on the same device which could lead to a failure to start or stop the shared interrupt URB. The latter could potentially cause a use-after-free or worse in the completion handler on driver unbind. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable <stable(a)vger.kernel.org> Signed-off-by: Johan Hovold <johan(a)kernel.org> --- drivers/usb/serial/ti_usb_3410_5052.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index dd0ad67aa71e..9174ba2e06da 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -776,7 +776,6 @@ static void ti_close(struct usb_serial_port *port) struct ti_port *tport; int port_number; int status; - int do_unlock; unsigned long flags; tdev = usb_get_serial_data(port->serial); @@ -800,16 +799,13 @@ static void ti_close(struct usb_serial_port *port) "%s - cannot send close port command, %d\n" , __func__, status); - /* if mutex_lock is interrupted, continue anyway */ - do_unlock = !mutex_lock_interruptible(&tdev->td_open_close_lock); + mutex_lock(&tdev->td_open_close_lock); --tport->tp_tdev->td_open_port_count; - if (tport->tp_tdev->td_open_port_count <= 0) { + if (tport->tp_tdev->td_open_port_count == 0) { /* last port is closed, shut down interrupt urb */ usb_kill_urb(port->serial->port[0]->interrupt_in_urb); - tport->tp_tdev->td_open_port_count = 0; } - if (do_unlock) - mutex_unlock(&tdev->td_open_close_lock); + mutex_unlock(&tdev->td_open_close_lock); } -- 2.23.0

5 years, 9 months

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stable-rc/linux-4.14.y boot: 118 boots: 0 failed, 109 passed with 9 offline (v4.14.148-61-g6f45e0e87a75)

by kernelci.org bot

stable-rc/linux-4.14.y boot: 118 boots: 0 failed, 109 passed with 9 offline (v4.14.148-61-g6f45e0e87a75) Full Boot Summary: https://kernelci.org/boot/all/job/stable-rc/branch/linux-4.14.y/kernel/v4.1… Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-4.14.y/kernel/v4.14.148-6… Tree: stable-rc Branch: linux-4.14.y Git Describe: v4.14.148-61-g6f45e0e87a75 Git Commit: 6f45e0e87a7551cae6c20b88e1132d7ab2e340b7 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Tested: 66 unique boards, 21 SoC families, 15 builds out of 201 Offline Platforms: arm64: defconfig: gcc-8 apq8016-sbc: 1 offline lab arm: sunxi_defconfig: gcc-8 sun5i-r8-chip: 1 offline lab sun7i-a20-bananapi: 1 offline lab multi_v7_defconfig: gcc-8 qcom-apq8064-cm-qs600: 1 offline lab qcom-apq8064-ifc6410: 1 offline lab sun5i-r8-chip: 1 offline lab davinci_all_defconfig: gcc-8 dm365evm,legacy: 1 offline lab qcom_defconfig: gcc-8 qcom-apq8064-cm-qs600: 1 offline lab qcom-apq8064-ifc6410: 1 offline lab --- For more info write to <info(a)kernelci.org>

5 years, 9 months

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[PATCH] mac80211: More strictly validate .abort_scan

by Denis Kenzior

nl80211 requires NL80211_CMD_ABORT_SCAN to have a wdev or netdev attribute present and checks that if netdev is provided it is UP. However, mac80211 does not check that an ongoing scan actually belongs to the netdev/wdev provided by the user. In other words, it is possible for an application to cancel scans on an interface it doesn't manage. Signed-off-by: Denis Kenzior <denkenz(a)gmail.com> Cc: stable(a)vger.kernel.org --- net/mac80211/cfg.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 70739e746c13..ece344f9e9ca 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -2333,7 +2333,13 @@ static int ieee80211_scan(struct wiphy *wiphy, static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) { - ieee80211_scan_cancel(wiphy_priv(wiphy)); + struct ieee80211_local *local = wiphy_priv(wiphy); + struct ieee80211_sub_if_data *sdata = + IEEE80211_WDEV_TO_SUB_IF(wdev); + bool cancel_scan = rcu_access_pointer(local->scan_sdata) == sdata; + + if (cancel_scan) + ieee80211_scan_cancel(local); } static int -- 2.21.0

5 years, 9 months

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patch "firmware: google: increment VPD key_len properly" added to char-misc-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled firmware: google: increment VPD key_len properly to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. >From 442f1e746e8187b9deb1590176f6b0ff19686b11 Mon Sep 17 00:00:00 2001 From: Brian Norris <briannorris(a)chromium.org> Date: Mon, 30 Sep 2019 14:45:22 -0700 Subject: firmware: google: increment VPD key_len properly Commit 4b708b7b1a2c ("firmware: google: check if size is valid when decoding VPD data") adds length checks, but the new vpd_decode_entry() function botched the logic -- it adds the key length twice, instead of adding the key and value lengths separately. On my local system, this means vpd.c's vpd_section_create_attribs() hits an error case after the first attribute it parses, since it's no longer looking at the correct offset. With this patch, I'm back to seeing all the correct attributes in /sys/firmware/vpd/... Fixes: 4b708b7b1a2c ("firmware: google: check if size is valid when decoding VPD data") Cc: <stable(a)vger.kernel.org> Cc: Hung-Te Lin <hungte(a)chromium.org> Signed-off-by: Brian Norris <briannorris(a)chromium.org> Reviewed-by: Stephen Boyd <swboyd(a)chromium.org> Reviewed-by: Guenter Roeck <groeck(a)chromium.org> Link: https://lore.kernel.org/r/20190930214522.240680-1-briannorris@chromium.org Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/firmware/google/vpd_decode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/firmware/google/vpd_decode.c b/drivers/firmware/google/vpd_decode.c index dda525c0f968..5c6f2a74f104 100644 --- a/drivers/firmware/google/vpd_decode.c +++ b/drivers/firmware/google/vpd_decode.c @@ -52,7 +52,7 @@ static int vpd_decode_entry(const u32 max_len, const u8 *input_buf, if (max_len - consumed < *entry_len) return VPD_FAIL; - consumed += decoded_len; + consumed += *entry_len; *_consumed = consumed; return VPD_OK; } -- 2.23.0

5 years, 9 months

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[PATCH ARM64 v4.4 V3 00/44] V4.4 backport of arm64 Spectre patches

by Viresh Kumar

Hello, This series backports arm64 spectre patches to v4.4 stable kernel. I have started this backport with Mark Rutland's backport of Spectre to 4.9 [1] and tried applying the upstream version of them over 4.4 and resolved conflicts by checking how they have been resolved in 4.9. The KVM changes are mostly dropped as the KVM code in v4.4 is quite different and it makes backport more complex. This was suggested by the ARM team. I had to pick few extra upstream patches to avoid conflicts and to make things work: mm/kasan: add API to check memory regions arm64: kasan: instrument user memory access API arm64: cpufeature: Add scope for capability check arm64: cputype info for Broadcom Vulcan arm64: cputype: Add MIDR values for Cavium ThunderX2 CPUs ARM: 8478/2: arm/arm64: add arm-smccc arm64: cpufeature: Test 'matches' pointer to find the end of the list arm64: Introduce cpu_die_early arm64: Move cpu_die_early to smp.c arm64: Verify CPU errata work arounds on hotplugged CPU arm64: errata: Calling enable functions for CPU errata too arm64: Rearrange CPU errata workaround checks arm64: Add a helper for parking CPUs in a loop I also had to drop few patches as they weren't getting applied properly due to missing files/features or they were KVM related: arm64: cpufeature: __this_cpu_has_cap() shouldn't stop early arm64: KVM: Use per-CPU vector when BP hardening is enabled arm64: KVM: Make PSCI_VERSION a fast path mm: Introduce lm_alias arm64: KVM: Increment PC after handling an SMC trap arm/arm64: KVM: Consolidate the PSCI include files arm/arm64: KVM: Add PSCI_VERSION helper arm/arm64: KVM: Add smccc accessors to PSCI code arm/arm64: KVM: Implement PSCI 1.0 support arm/arm64: KVM: Turn kvm_psci_version into a static inline arm64: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling The patches in this series are pushed here [2]. This is tested on Hikey board (octa A53) and I verified that BP hardening code is getting hit for CPUs (had to hack a bit and enable BP hardening support for A53 for this). V2->V3: - Included an extra patch and used the helper introduced by it: arm64: Add a helper for parking CPUs in a loop - Droped few extra blank lines added by mistake - Avoid overlapping with SVE2 bits V1->V2: - Rebased over 4.4.184 (was 4.4.180 earlier). - Fixed an build issue with CONFIG_KASAN (Julien). - Dropped few patches, mostly KVM stuff (Julien): arm64: remove duplicate macro __KERNEL__ check mm: Introduce lm_alias arm64: KVM: Increment PC after handling an SMC trap arm/arm64: KVM: Consolidate the PSCI include files arm/arm64: KVM: Add PSCI_VERSION helper arm/arm64: KVM: Add smccc accessors to PSCI code arm/arm64: KVM: Implement PSCI 1.0 support arm/arm64: KVM: Turn kvm_psci_version into a static inline arm64: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling - Added few patches to fix issues reported by Julien: arm64: cpufeature: Test 'matches' pointer to find the end of the list arm64: Introduce cpu_die_early arm64: Move cpu_die_early to smp.c arm64: Verify CPU errata work arounds on hotplugged CPU arm64: errata: Calling enable functions for CPU errata too arm64: Rearrange CPU errata workaround checks -- viresh [1] https://patches.linaro.org/cover/133195/ with top commit in 4.9 stable tree: a3b292fe0560 arm64: futex: Mask __user pointers prior to dereference [2] https://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux.git stable/arm64/v4.4.y/spectre -------------------------8<------------------------- Andre Przywara (1): arm64: errata: Calling enable functions for CPU errata too Andrey Ryabinin (1): mm/kasan: add API to check memory regions Catalin Marinas (1): arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro James Morse (1): arm64: cpufeature: Test 'matches' pointer to find the end of the list Jayachandran C (3): arm64: cputype info for Broadcom Vulcan arm64: cputype: Add MIDR values for Cavium ThunderX2 CPUs arm64: Branch predictor hardening for Cavium ThunderX2 Jens Wiklander (1): ARM: 8478/2: arm/arm64: add arm-smccc Marc Zyngier (11): arm64: Move post_ttbr_update_workaround to C code arm64: Move BP hardening to check_and_switch_context arm64: cpu_errata: Allow an erratum to be match for all revisions of a core arm/arm64: KVM: Advertise SMCCC v1.1 arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support firmware/psci: Expose PSCI conduit firmware/psci: Expose SMCCC version through psci_ops arm/arm64: smccc: Make function identifiers an unsigned quantity arm/arm64: smccc: Implement SMCCC v1.1 inline primitive arm64: Add ARM_SMCCC_ARCH_WORKAROUND_1 BP hardening support arm64: Kill PSCI_GET_VERSION as a variant-2 workaround Robin Murphy (3): arm64: Implement array_index_mask_nospec() arm64: Make USER_DS an inclusive limit arm64: Use pointer masking to limit uaccess speculation Suzuki K Poulose (7): arm64: cpufeature: Add scope for capability check arm64: Introduce cpu_die_early arm64: Add a helper for parking CPUs in a loop arm64: Move cpu_die_early to smp.c arm64: Verify CPU errata work arounds on hotplugged CPU arm64: Rearrange CPU errata workaround checks arm64: Run enable method for errata work arounds on late CPUs Will Deacon (13): arm64: barrier: Add CSDB macros to control data-value prediction arm64: entry: Ensure branch through syscall table is bounded under speculation arm64: uaccess: Prevent speculative use of the current addr_limit arm64: uaccess: Don't bother eliding access_ok checks in __{get, put}_user arm64: uaccess: Mask __user pointers for __arch_{clear, copy_*}_user arm64: cpufeature: Pass capability structure to ->enable callback drivers/firmware: Expose psci_get_version through psci_ops structure arm64: Add skeleton to harden the branch predictor against aliasing attacks arm64: entry: Apply BP hardening for high-priority synchronous exceptions arm64: entry: Apply BP hardening for suspicious interrupts from EL0 arm64: cputype: Add missing MIDR values for Cortex-A72 and Cortex-A75 arm64: Implement branch predictor hardening for affected Cortex-A CPUs arm64: futex: Mask __user pointers prior to dereference Yang Shi (1): arm64: kasan: instrument user memory access API Yury Norov (1): arm64: move TASK_* definitions to <asm/processor.h> MAINTAINERS | 14 ++ arch/arm64/Kconfig | 17 ++ arch/arm64/include/asm/assembler.h | 18 ++ arch/arm64/include/asm/barrier.h | 23 +++ arch/arm64/include/asm/cpufeature.h | 24 ++- arch/arm64/include/asm/cputype.h | 12 ++ arch/arm64/include/asm/futex.h | 9 +- arch/arm64/include/asm/memory.h | 15 -- arch/arm64/include/asm/mmu.h | 39 ++++ arch/arm64/include/asm/processor.h | 24 +++ arch/arm64/include/asm/smp.h | 9 + arch/arm64/include/asm/sysreg.h | 2 + arch/arm64/include/asm/uaccess.h | 173 ++++++++++++------ arch/arm64/kernel/Makefile | 5 + arch/arm64/kernel/arm64ksyms.c | 8 +- arch/arm64/kernel/bpi.S | 75 ++++++++ arch/arm64/kernel/cpu_errata.c | 213 +++++++++++++++++++++- arch/arm64/kernel/cpufeature.c | 186 +++++++++---------- arch/arm64/kernel/cpuinfo.c | 2 - arch/arm64/kernel/entry.S | 26 ++- arch/arm64/kernel/smp.c | 30 +++- arch/arm64/lib/clear_user.S | 6 +- arch/arm64/lib/copy_from_user.S | 4 +- arch/arm64/lib/copy_in_user.S | 4 +- arch/arm64/lib/copy_to_user.S | 4 +- arch/arm64/mm/context.c | 12 ++ arch/arm64/mm/fault.c | 31 ++++ arch/arm64/mm/proc.S | 12 +- drivers/firmware/Kconfig | 3 + drivers/firmware/psci.c | 58 +++++- include/linux/arm-smccc.h | 267 ++++++++++++++++++++++++++++ include/linux/kasan-checks.h | 12 ++ include/linux/psci.h | 14 ++ mm/kasan/kasan.c | 12 ++ 34 files changed, 1150 insertions(+), 213 deletions(-) create mode 100644 arch/arm64/kernel/bpi.S create mode 100644 include/linux/arm-smccc.h create mode 100644 include/linux/kasan-checks.h -- 2.21.0.rc0.269.g1a574e7a288b

5 years, 9 months

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[PATCH ARM32 v4.4 V2 00/47] V4.4 backport of arm32 Spectre patches

by Viresh Kumar

Hello, Here is an attempt to backport arm32 spectre patches to v4.4 stable tree. This was last tried around an year back by David Long [1]. He was backporting only a subset (18) of patches and this series include a lot of other patches present in Russell's spectre branch. Just like arm64 backport [2], KVM patches are dropped and they can be backported separately if required. Dropped patches (compared to Russell's spectre branch): KVM related: 3f7e8e2e1ebd ARM: KVM: invalidate BTB on guest exit for Cortex-A12/A17 0c47ac8cd157 ARM: KVM: invalidate icache on guest exit for Cortex-A15 3c908e16396d ARM: spectre-v2: KVM: invalidate icache on guest exit for Brahma B15 b800acfc70d9 ARM: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling add5609877c6 ARM: KVM: report support for SMCCC_ARCH_WORKAROUND_1 Dropped in 4.9 backport as well: 73839798af7e ARM: 8790/1: signal: always use __copy_to_user to save iwmmxt context Additional patches picked to avoid rebase conflicts and build issues: 9f73bd8bb445 ARM: uaccess: remove put_user() code duplication 122e022eebb3 arch: Introduce post-init read-only memory 7b90ba3eb4af ARM: 8595/2: apply more __ro_after_init SMCCC related patches, are part of arm64 backport [2] as well and all KVM related changes are dropped from them: 56b35dfda10c ARM: 8478/2: arm/arm64: add arm-smccc e6e9cc47cea9 arm/arm64: KVM: Advertise SMCCC v1.1 91958fe7a4eb arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support 1b232ad7ca05 drivers/firmware: Expose psci_get_version through psci_ops structure df2030616c6f firmware/psci: Expose PSCI conduit 30f8c32765fd firmware/psci: Expose SMCCC version through psci_ops 17f6f98d5069 arm/arm64: smccc: Make function identifiers an unsigned quantity e6d9b2fef81e arm/arm64: smccc: Implement SMCCC v1.1 inline primitive All the patches are pushed here [3]. This is tested in Linaro Lava on Qemu_arm and X15 platforms and the results are here [4]. Lava also check for some Spectre tests and one of the test fails on x15 with this message: CVE-2018-3640: VULN (an up-to-date CPU microcode is needed to mitigate this vulnerability). Perhaps this is an issue with x15 setup and not the patches themselves ? I have also pushed this to be tested by kernel-ci, looks like my branch isn't getting tested there currently. I am co-ordinating with them to get it tested soon, we can start the review process until that time though. -- Viresh [1] https://lore.kernel.org/stable/20181031140436.2964-1-dave.long@linaro.org/ [2] https://lore.kernel.org/stable/cover.1562908074.git.viresh.kumar@linaro.org/ [3] https://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux.git stable/arm32/v4.4.y/spectre [4] https://staging-qa-reports.linaro.org/lkft/vishal.bhoj-stable-arm32-v4.4.y-… Ard Biesheuvel (1): ARM: 8809/1: proc-v7: fix Thumb annotation of cpu_v7_hvc_switch_mm Jens Wiklander (1): ARM: 8478/2: arm/arm64: add arm-smccc Julien Thierry (9): ARM: 8789/1: signal: copy registers using __copy_to_user() ARM: 8791/1: vfp: use __copy_to_user() when saving VFP state ARM: 8792/1: oabi-compat: copy oabi events using __copy_to_user() ARM: 8793/1: signal: replace __put_user_error with __put_user ARM: 8794/1: uaccess: Prevent speculative use of the current addr_limit ARM: 8795/1: spectre-v1.1: use put_user() for __put_user() ARM: 8796/1: spectre-v1,v1.1: provide helpers for address sanitization ARM: 8797/1: spectre-v1.1: harden __copy_to_user ARM: 8810/1: vfp: Fix wrong assignement to ufp_exc Kees Cook (2): arch: Introduce post-init read-only memory ARM: 8595/2: apply more __ro_after_init Marc Zyngier (6): arm/arm64: KVM: Advertise SMCCC v1.1 arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support firmware/psci: Expose PSCI conduit firmware/psci: Expose SMCCC version through psci_ops arm/arm64: smccc: Make function identifiers an unsigned quantity arm/arm64: smccc: Implement SMCCC v1.1 inline primitive Russell King (27): ARM: add more CPU part numbers for Cortex and Brahma B15 CPUs ARM: bugs: prepare processor bug infrastructure ARM: bugs: hook processor bug checking into SMP and suspend paths ARM: bugs: add support for per-processor bug checking ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre ARM: spectre-v2: harden branch predictor on context switches ARM: spectre-v2: add Cortex A8 and A15 validation of the IBE bit ARM: spectre-v2: harden user aborts in kernel space ARM: spectre-v2: add firmware based hardening ARM: spectre-v2: warn about incorrect context switching functions ARM: spectre-v1: add speculation barrier (csdb) macros ARM: spectre-v1: add array_index_mask_nospec() implementation ARM: spectre-v1: fix syscall entry ARM: signal: copy registers using __copy_from_user() ARM: vfp: use __copy_from_user() when restoring VFP state ARM: oabi-compat: copy semops using __copy_from_user() ARM: use __inttype() in get_user() ARM: spectre-v1: use get_user() for __get_user() ARM: spectre-v1: mitigate user accesses ARM: uaccess: remove put_user() code duplication ARM: make lookup_processor_type() non-__init ARM: split out processor lookup ARM: clean up per-processor check_bugs method call ARM: add PROC_VTABLE and PROC_TABLE macros ARM: spectre-v2: per-CPU vtables to work around big.Little systems ARM: ensure that processor vtables is not lost after boot ARM: fix the cockup in the previous patch Will Deacon (1): drivers/firmware: Expose psci_get_version through psci_ops structure arch/arm/include/asm/assembler.h | 23 +++ arch/arm/include/asm/barrier.h | 32 ++++ arch/arm/include/asm/bugs.h | 6 +- arch/arm/include/asm/cp15.h | 18 ++ arch/arm/include/asm/cputype.h | 9 + arch/arm/include/asm/proc-fns.h | 65 +++++-- arch/arm/include/asm/system_misc.h | 15 ++ arch/arm/include/asm/thread_info.h | 8 +- arch/arm/include/asm/uaccess.h | 176 +++++++++++-------- arch/arm/kernel/Makefile | 1 + arch/arm/kernel/bugs.c | 18 ++ arch/arm/kernel/cpuidle.c | 2 +- arch/arm/kernel/entry-common.S | 18 +- arch/arm/kernel/entry-header.S | 25 +++ arch/arm/kernel/head-common.S | 6 +- arch/arm/kernel/setup.c | 50 +++--- arch/arm/kernel/signal.c | 126 +++++++------- arch/arm/kernel/smp.c | 38 +++- arch/arm/kernel/suspend.c | 2 + arch/arm/kernel/sys_oabi-compat.c | 16 +- arch/arm/lib/copy_from_user.S | 5 + arch/arm/lib/copy_to_user.S | 6 +- arch/arm/lib/delay.c | 2 +- arch/arm/lib/uaccess_with_memcpy.c | 3 +- arch/arm/mm/Kconfig | 23 +++ arch/arm/mm/Makefile | 2 +- arch/arm/mm/fault.c | 3 + arch/arm/mm/mmu.c | 2 +- arch/arm/mm/proc-macros.S | 13 +- arch/arm/mm/proc-v7-2level.S | 6 - arch/arm/mm/proc-v7-bugs.c | 161 +++++++++++++++++ arch/arm/mm/proc-v7.S | 154 +++++++++++++---- arch/arm/vfp/vfpmodule.c | 37 ++-- arch/parisc/include/asm/cache.h | 3 + drivers/firmware/Kconfig | 3 + drivers/firmware/psci.c | 58 ++++++- include/asm-generic/vmlinux.lds.h | 1 + include/linux/arm-smccc.h | 267 +++++++++++++++++++++++++++++ include/linux/cache.h | 14 ++ include/linux/psci.h | 14 ++ 40 files changed, 1174 insertions(+), 257 deletions(-) create mode 100644 arch/arm/kernel/bugs.c create mode 100644 arch/arm/mm/proc-v7-bugs.c create mode 100644 include/linux/arm-smccc.h -- 2.21.0.rc0.269.g1a574e7a288b

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stable-rc/linux-4.14.y build: 201 builds: 0 failed, 201 passed, 100 warnings (v4.14.148-61-g6f45e0e87a75)

by kernelci.org bot

stable-rc/linux-4.14.y build: 201 builds: 0 failed, 201 passed, 100 warnings (v4.14.148-61-g6f45e0e87a75) Full Build Summary: https://kernelci.org/build/stable-rc/branch/linux-4.14.y/kernel/v4.14.148-6… Tree: stable-rc Branch: linux-4.14.y Git Describe: v4.14.148-61-g6f45e0e87a75 Git Commit: 6f45e0e87a7551cae6c20b88e1132d7ab2e340b7 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git Built: 6 unique architectures Warnings Detected: arc: arm64: defconfig (gcc-8): 1 warning arm: acs5k_defconfig (gcc-8): 1 warning acs5k_tiny_defconfig (gcc-8): 1 warning aspeed_g4_defconfig (gcc-8): 1 warning aspeed_g5_defconfig (gcc-8): 1 warning assabet_defconfig (gcc-8): 1 warning axm55xx_defconfig (gcc-8): 1 warning badge4_defconfig (gcc-8): 1 warning cerfcube_defconfig (gcc-8): 1 warning clps711x_defconfig (gcc-8): 1 warning cm_x300_defconfig (gcc-8): 1 warning cns3420vb_defconfig (gcc-8): 1 warning colibri_pxa270_defconfig (gcc-8): 1 warning colibri_pxa300_defconfig (gcc-8): 1 warning collie_defconfig (gcc-8): 1 warning corgi_defconfig (gcc-8): 1 warning davinci_all_defconfig (gcc-8): 1 warning dove_defconfig (gcc-8): 1 warning ebsa110_defconfig (gcc-8): 1 warning ep93xx_defconfig (gcc-8): 1 warning eseries_pxa_defconfig (gcc-8): 1 warning exynos_defconfig (gcc-8): 1 warning ezx_defconfig (gcc-8): 1 warning footbridge_defconfig (gcc-8): 1 warning gemini_defconfig (gcc-8): 1 warning h3600_defconfig (gcc-8): 1 warning hackkit_defconfig (gcc-8): 1 warning hisi_defconfig (gcc-8): 1 warning imote2_defconfig (gcc-8): 1 warning imx_v6_v7_defconfig (gcc-8): 1 warning integrator_defconfig (gcc-8): 1 warning iop13xx_defconfig (gcc-8): 1 warning iop32x_defconfig (gcc-8): 1 warning iop33x_defconfig (gcc-8): 1 warning ixp4xx_defconfig (gcc-8): 1 warning jornada720_defconfig (gcc-8): 1 warning keystone_defconfig (gcc-8): 1 warning ks8695_defconfig (gcc-8): 1 warning lart_defconfig (gcc-8): 1 warning lpd270_defconfig (gcc-8): 1 warning lubbock_defconfig (gcc-8): 1 warning magician_defconfig (gcc-8): 1 warning mainstone_defconfig (gcc-8): 1 warning mini2440_defconfig (gcc-8): 1 warning mmp2_defconfig (gcc-8): 1 warning moxart_defconfig (gcc-8): 1 warning multi_v4t_defconfig (gcc-8): 1 warning multi_v5_defconfig (gcc-8): 1 warning multi_v7_defconfig (gcc-8): 1 warning mv78xx0_defconfig (gcc-8): 1 warning mvebu_v5_defconfig (gcc-8): 1 warning mvebu_v7_defconfig (gcc-8): 1 warning mxs_defconfig (gcc-8): 1 warning neponset_defconfig (gcc-8): 1 warning netwinder_defconfig (gcc-8): 1 warning netx_defconfig (gcc-8): 1 warning nhk8815_defconfig (gcc-8): 1 warning nuc910_defconfig (gcc-8): 1 warning nuc950_defconfig (gcc-8): 1 warning nuc960_defconfig (gcc-8): 1 warning omap2plus_defconfig (gcc-8): 1 warning orion5x_defconfig (gcc-8): 1 warning palmz72_defconfig (gcc-8): 1 warning pcm027_defconfig (gcc-8): 1 warning prima2_defconfig (gcc-8): 1 warning pxa168_defconfig (gcc-8): 1 warning pxa255-idp_defconfig (gcc-8): 1 warning pxa3xx_defconfig (gcc-8): 1 warning pxa910_defconfig (gcc-8): 1 warning pxa_defconfig (gcc-8): 1 warning qcom_defconfig (gcc-8): 1 warning raumfeld_defconfig (gcc-8): 1 warning realview_defconfig (gcc-8): 1 warning rpc_defconfig (gcc-8): 1 warning s3c2410_defconfig (gcc-8): 1 warning s3c6400_defconfig (gcc-8): 1 warning s5pv210_defconfig (gcc-8): 1 warning sama5_defconfig (gcc-8): 1 warning shannon_defconfig (gcc-8): 1 warning simpad_defconfig (gcc-8): 1 warning socfpga_defconfig (gcc-8): 1 warning spear13xx_defconfig (gcc-8): 1 warning spear3xx_defconfig (gcc-8): 1 warning spear6xx_defconfig (gcc-8): 1 warning spitz_defconfig (gcc-8): 1 warning sunxi_defconfig (gcc-8): 1 warning tango4_defconfig (gcc-8): 1 warning tegra_defconfig (gcc-8): 1 warning trizeps4_defconfig (gcc-8): 1 warning u300_defconfig (gcc-8): 1 warning u8500_defconfig (gcc-8): 1 warning versatile_defconfig (gcc-8): 1 warning vexpress_defconfig (gcc-8): 1 warning vt8500_v6_v7_defconfig (gcc-8): 1 warning zeus_defconfig (gcc-8): 1 warning zx_defconfig (gcc-8): 1 warning i386: i386_defconfig (gcc-8): 1 warning mips: malta_qemu_32r6_defconfig (gcc-8): 1 warning x86_64: tinyconfig (gcc-8): 1 warning x86_64_defconfig (gcc-8): 1 warning Warnings summary: 98 fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] 1 {standard input}:29: Warning: macro instruction expanded into multiple instructions 1 .config:1023:warning: override: UNWINDER_GUESS changes choice state ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- 32r2el_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- acs5k_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- acs5k_tiny_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- allnoconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arm64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (i386, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (x86_64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- am200epdkit_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ar7_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- aspeed_g4_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- aspeed_g5_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- assabet_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- at91_dt_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath25_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath79_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axm55xx_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- axs103_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axs103_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- badge4_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- bcm2835_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm47xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm63xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bigsur_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bmips_be_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bmips_stb_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- capcella_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cavium_octeon_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cerfcube_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- ci20_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- clps711x_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- cm_x2xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cm_x300_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- cns3420vb_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- cobalt_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa270_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- colibri_pxa300_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- collie_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- corgi_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- davinci_all_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- db1xxx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- decstation_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig (arm64, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- dove_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- e55_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ebsa110_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- efm32_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- em_x270_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ep93xx_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- eseries_pxa_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- exynos_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- ezx_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- footbridge_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- fuloong2e_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gemini_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- gpr_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- h3600_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- h5000_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hackkit_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- haps_hs_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- haps_hs_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hisi_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- hsdk_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig (i386, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- imote2_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- imx_v4_v5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- integrator_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- iop13xx_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- iop32x_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- iop33x_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- ip22_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip27_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip28_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip32_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ixp4xx_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- jazz_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jmr3927_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jornada720_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- keystone_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- ks8695_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- lart_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- lasat_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lemote2f_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson1b_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson1c_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson3_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpc18xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpc32xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpd270_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- lubbock_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- magician_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mainstone_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- malta_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_guest_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_qemu_32r6_defconfig (mips, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: {standard input}:29: Warning: macro instruction expanded into multiple instructions -------------------------------------------------------------------------------- maltaaprp_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_eva_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_xpa_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- markeins_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mini2440_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mips_paravirt_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mmp2_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- moxart_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mpc30x_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mps2_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- msp71xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mtx1_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v4t_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- multi_v5_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- multi_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mv78xx0_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mvebu_v5_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mvebu_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- mxs_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- neponset_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- netwinder_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- netx_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- nhk8815_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- nlm_xlp_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nlm_xlr_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsim_hs_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsim_hs_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsimosci_hs_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsimosci_hs_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc910_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- nuc950_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- nuc960_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- omap1_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap2plus_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- omega2p_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- orion5x_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- palmz72_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pcm027_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pic32mzda_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pistachio_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pleb_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pnx8335_stb225_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- prima2_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pxa168_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pxa255-idp_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pxa3xx_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pxa910_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- pxa_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- qcom_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- qi_lb60_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- raumfeld_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- rb532_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rbtx49xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- realview_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- rm200_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rpc_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- rt305x_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s3c2410_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- s3c6400_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- s5pv210_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- sama5_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- sb1250_swarm_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- shannon_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- shmobile_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- simpad_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- socfpga_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- spear13xx_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- spear3xx_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- spear6xx_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- spitz_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- stm32_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sunxi_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- tango4_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- tb0219_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0226_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0287_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tct_hammer_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tegra_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- tinyconfig (arm64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (i386, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (x86_64, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: .config:1023:warning: override: UNWINDER_GUESS changes choice state -------------------------------------------------------------------------------- tinyconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- trizeps4_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- u300_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- u8500_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- vdk_hs38_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vdk_hs38_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- versatile_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- vexpress_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- viper_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vocore2_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vt8500_v6_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- workpad_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig (x86_64, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- xcep_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xilfpga_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xway_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- zeus_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] -------------------------------------------------------------------------------- zx_defconfig (arm, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: fs/proc/task_mmu.c:761:7: warning: 'last_vma' may be used uninitialized in this function [-Wmaybe-uninitialized] --- For more info write to <info(a)kernelci.org>

5 years, 9 months

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[PATCH v3] PCI: rcar: Fix missing MACCTLR register setting in rcar_pcie_hw_init()

by Yoshihiro Shimoda

According to the R-Car Gen2/3 manual, the bit 0 of MACCTLR register should be written to 0 before enabling PCIETCTLR.CFINIT because the bit 0 is set to 1 on reset. To avoid unexpected behaviors from this incorrect setting, this patch fixes it. Fixes: c25da4778803 ("PCI: rcar: Add Renesas R-Car PCIe driver") Cc: <stable(a)vger.kernel.org> # v3.16+ Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh(a)renesas.com> Reviewed-by: Sergei Shtylyov <sergei.shtylyov(a)cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas(a)glider.be> --- Changes from v2: - Change the subject. - Fix commit log again. - Add the register setting into the initialization, instead of speedup. - Change commit hash/target version on Fixes and Cc stable tags. - Add Geert-san's Reviewed-by. https://patchwork.kernel.org/patch/11180429/ Changes from v1: - Fix commit log. - Add Sergei-san's Reviewed-by. https://patchwork.kernel.org/patch/11179279/ drivers/pci/controller/pcie-rcar.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/controller/pcie-rcar.c b/drivers/pci/controller/pcie-rcar.c index f6a669a..8d0798c 100644 --- a/drivers/pci/controller/pcie-rcar.c +++ b/drivers/pci/controller/pcie-rcar.c @@ -93,6 +93,7 @@ #define LINK_SPEED_2_5GTS (1 << 16) #define LINK_SPEED_5_0GTS (2 << 16) #define MACCTLR 0x011058 +#define MACCTLR_RESERVED BIT(0) #define SPEED_CHANGE BIT(24) #define SCRAMBLE_DISABLE BIT(27) #define PMSR 0x01105c @@ -615,6 +616,8 @@ static int rcar_pcie_hw_init(struct rcar_pcie *pcie) if (IS_ENABLED(CONFIG_PCI_MSI)) rcar_pci_write_reg(pcie, 0x801f0000, PCIEMSITXR); + rcar_rmw32(pcie, MACCTLR, MACCTLR_RESERVED, 0); + /* Finish initialization - establish a PCI Express link */ rcar_pci_write_reg(pcie, CFINIT, PCIETCTLR); -- 2.7.4

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