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421dabcad1c69e02a41c0d601aefbc29ee3f5368
Analyze and fix the following issue in the Linux kernel code: drm/nouveau: remove unused tu102_gr_load() function
Problem Details: tu102_gr_load() is completely unused and can be removed to address this warning: drivers/gpu/drm/nouveau/dispnv50/disp.c:2517:1: error: no previous prototype for 'nv50_display_create' Another patch was sent in the meantime to mark the function static but that would just cause a different warning abou...
```diff diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/tu102.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/tu102.c index 3b6c8100a242..a7775aa18541 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/tu102.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/tu102.c @@ -206,19 +206,6 @@ tu102_gr_av_to_init_veid(struct nvkm...
e4774e9968b26dc5d225ce629af8081ddab0029a
Analyze and fix the following issue in the Linux kernel code: drm/doc: fix underline for section "DRM Sync Objects"
Problem Details: It doesn't line up. Signed-off-by: Simon Ser <contact@emersion.fr> Suggested-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230803102505.392577-1-contact@emersion.fr
```diff diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst index 513197359aba..c19b34b1c0ed 100644 --- a/Documentation/gpu/drm-mm.rst +++ b/Documentation/gpu/drm-mm.rst @@ -520,7 +520,7 @@ DRM Cache Handling and Fast WC memcpy() .. _drm_sync_objects: DRM Sync Objects -=========================...
8874a414f8f706daf1de467cbf2550988ebec09d
Analyze and fix the following issue in the Linux kernel code: x86/qspinlock-paravirt: Fix missing-prototype warning
Problem Details: __pv_queued_spin_unlock_slowpath() is defined in a header file as a global function, and designed to be called from inline asm, but there is no prototype visible in the definition: kernel/locking/qspinlock_paravirt.h:493:1: error: no previous \ prototype for '__pv_queued_spin_unlock_slowpath' [-...
```diff diff --git a/arch/x86/include/asm/qspinlock_paravirt.h b/arch/x86/include/asm/qspinlock_paravirt.h index 42b17cf10b10..85b6e3609cb9 100644 --- a/arch/x86/include/asm/qspinlock_paravirt.h +++ b/arch/x86/include/asm/qspinlock_paravirt.h @@ -4,6 +4,8 @@ #include <asm/ibt.h> +void __lockfunc __pv_queued_spin_u...
8d207400fd6b79c92aeb2f33bb79f62dff904ea2
Analyze and fix the following issue in the Linux kernel code: soc: qcom: qmi_encdec: Restrict string length in decode
Problem Details: The QMI TLV value for strings in a lot of qmi element info structures account for null terminated strings with MAX_LEN + 1. If a string is actually MAX_LEN + 1 length, this will cause an out of bounds access when the NULL character is appended in decoding. Fixes: 9b8a11e82615 ("soc: qcom: Introduce QM...
```diff diff --git a/drivers/soc/qcom/qmi_encdec.c b/drivers/soc/qcom/qmi_encdec.c index b7158e3c3a0b..5c7161b18b72 100644 --- a/drivers/soc/qcom/qmi_encdec.c +++ b/drivers/soc/qcom/qmi_encdec.c @@ -534,8 +534,8 @@ static int qmi_decode_string_elem(const struct qmi_elem_info *ei_array, decoded_bytes += rc; } - i...
5f908786cf44fcb397cfe0f322ef2f41b0909e2a
Analyze and fix the following issue in the Linux kernel code: soc: qcom: smem: Fix incompatible types in comparison
Problem Details: This patch fixes the following sparse error: drivers/soc/qcom/smem.c:738:30: error: incompatible types in comparison expression (different add ress spaces): drivers/soc/qcom/smem.c:738:30: void * drivers/soc/qcom/smem.c:738:30: void [noderef] __iomem * In addr_in_range(), "base" is of ty...
```diff diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c index aa4a199efefb..d4a89d2bb43b 100644 --- a/drivers/soc/qcom/smem.c +++ b/drivers/soc/qcom/smem.c @@ -735,7 +735,7 @@ EXPORT_SYMBOL_GPL(qcom_smem_get_free_space); static bool addr_in_range(void __iomem *base, size_t size, void *addr) { - retur...
2c9e45dfeed126488aa73e7b82b3576c4c6f1036
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm8550-mtp: Add missing supply for L1B regulator
Problem Details: Even though currently there is no consumer for L1B, add the supply for it anyway. Fixes: 71342fb91eae ("arm64: dts: qcom: Add base SM8550 MTP dts") Signed-off-by: Abel Vesa <abel.vesa@linaro.org> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20230801095246.288...
```diff diff --git a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts index 39a43db26ea1..f29cce5186ac 100644 --- a/arch/arm64/boot/dts/qcom/sm8550-mtp.dts +++ b/arch/arm64/boot/dts/qcom/sm8550-mtp.dts @@ -195,6 +195,7 @@ vdd-bob1-supply = <&vph_pwr>; vdd-bob2-supply = <&vph_pwr...
b6bcd1c0c27e1f210228346e6d23a2ec0c263e8c
Analyze and fix the following issue in the Linux kernel code: clk: qcom: fix some Kconfig corner cases
Problem Details: The SM_GCC_8550 symbol and others can only be built for ARM64 or when compile testing, but it gets selected by other drivers that can also be built for 32-bit ARCH_QCOM when not compile testing, which results in a Kconfig warning: WARNING: unmet direct dependencies detected for SM_GCC_8550 Depends o...
```diff diff --git a/drivers/clk/qcom/Kconfig b/drivers/clk/qcom/Kconfig index b41da59b25c0..04b55ab829d9 100644 --- a/drivers/clk/qcom/Kconfig +++ b/drivers/clk/qcom/Kconfig @@ -986,6 +986,7 @@ config SM_GPUCC_8450 config SM_GPUCC_8550 tristate "SM8550 Graphics Clock Controller" + depends on ARM64 || COMPILE_TEST...
4d6e0a1bf8f7a6b44d20162e29a87d0bd9526bb0
Analyze and fix the following issue in the Linux kernel code: soc: qcom: ocmem: add missing clk_disable_unprepare() in ocmem_dev_probe()
Problem Details: Add clk_disable_unprepare(core_clk) when enable iface_clk failed. Fixes: a7e12e7bda08 ("soc: qcom: ocmem: make iface clock optional") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20230802024855.2521895-1-yangyingliang@huawei.com Signed-off-by: Bjorn Andersso...
```diff diff --git a/drivers/soc/qcom/ocmem.c b/drivers/soc/qcom/ocmem.c index 6edc18b211aa..20f5461d46b9 100644 --- a/drivers/soc/qcom/ocmem.c +++ b/drivers/soc/qcom/ocmem.c @@ -343,8 +343,10 @@ static int ocmem_dev_probe(struct platform_device *pdev) return dev_err_probe(ocmem->dev, ret, "Failed to enable core clo...
783cb693828ce487cf0bc6ad16cbcf2caae6f8d9
Analyze and fix the following issue in the Linux kernel code: clk: qcom: gcc-sm8250: Fix gcc_sdcc2_apps_clk_src
Problem Details: GPLL9 is not on by default, which causes a "gcc_sdcc2_apps_clk_src: rcg didn't update its configuration" error when booting. Set .flags = CLK_OPS_PARENT_ENABLE to fix the error. Fixes: 3e5770921a88 ("clk: qcom: gcc: Add global clock controller driver for SM8250") Reviewed-by: Konrad Dybcio <konrad.dyb...
```diff diff --git a/drivers/clk/qcom/gcc-sm8250.c b/drivers/clk/qcom/gcc-sm8250.c index b6cf4bc88d4d..d3c75bb55946 100644 --- a/drivers/clk/qcom/gcc-sm8250.c +++ b/drivers/clk/qcom/gcc-sm8250.c @@ -721,6 +721,7 @@ static struct clk_rcg2 gcc_sdcc2_apps_clk_src = { .name = "gcc_sdcc2_apps_clk_src", .parent_data = ...
93083725e1ed86c07ea9846bb573b9340985853f
Analyze and fix the following issue in the Linux kernel code: regulator: max77857: fix build error in max77857-regulator.c
Problem Details: When using low verion gcc(7.5) to build the max77857-regulator driver, got the following error: drivers/regulator/max77857-regulator.c:312:16: error: initializer element is not constant .ramp_delay = max77857_ramp_table[0][0], To fix this by introducing a macro RAMAP_DELAY_INIT_VAL to define the va...
```diff diff --git a/drivers/regulator/max77857-regulator.c b/drivers/regulator/max77857-regulator.c index f2141b5be780..44a510547318 100644 --- a/drivers/regulator/max77857-regulator.c +++ b/drivers/regulator/max77857-regulator.c @@ -293,8 +293,10 @@ static const unsigned int max77857_switch_freq[] = { 1200000, 1500...
60c672b7f2d1e5dd1774f2399b355c9314e709f8
Analyze and fix the following issue in the Linux kernel code: ext4: avoid potential data overflow in next_linear_group
Problem Details: ngroups is ext4_group_t (unsigned int) while next_linear_group treat it in int. If ngroups is bigger than max number described by int, it will be treat as a negative number. Then "return group + 1 >= ngroups ? 0 : group + 1;" may keep returning 0. Switch int to ext4_group_t in next_linear_group to fix ...
```diff diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index e07d2a4fbcd1..bf041932c599 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -1080,8 +1080,9 @@ static inline int should_optimize_scan(struct ext4_allocation_context *ac) * Return next linear group for allocation. If linear traversal should not ...
a9ce5993a0f5c0887c8a1b4ffa3b8046fbcfdc93
Analyze and fix the following issue in the Linux kernel code: ext4: correct grp validation in ext4_mb_good_group
Problem Details: Group corruption check will access memory of grp and will trigger kernel crash if grp is NULL. So do NULL check before corruption check. Fixes: 5354b2af3406 ("ext4: allow ext4_get_group_info() to fail") Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com> Reviewed-by: Ritesh Harjani (IBM) <ritesh.lis...
```diff diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index a2d791953da5..e07d2a4fbcd1 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -2553,7 +2553,7 @@ static bool ext4_mb_good_group(struct ext4_allocation_context *ac, BUG_ON(cr < CR_POWER2_ALIGNED || cr >= EXT4_MB_NUM_CRS); - if (unlikely(EXT4_M...
89a65c3f170e5c3b05a626046c68354e2afd7912
Analyze and fix the following issue in the Linux kernel code: arm64/ptrace: Flush FP state when setting ZT0
Problem Details: When setting ZT0 via ptrace we do not currently force a reload of the floating point register state from memory, do that to ensure that the newly set value gets loaded into the registers on next task execution. The function was templated off the function for FPSIMD which due to our providing the optio...
```diff diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c index d7f4f0d1ae12..740e81e9db04 100644 --- a/arch/arm64/kernel/ptrace.c +++ b/arch/arm64/kernel/ptrace.c @@ -1180,6 +1180,8 @@ static int zt_set(struct task_struct *target, if (ret == 0) target->thread.svcr |= SVCR_ZA_MASK; + fpsimd_fl...
c9bb40b7f786662e33d71afe236442b0b61f0446
Analyze and fix the following issue in the Linux kernel code: arm64/fpsimd: Clear SME state in the target task when setting the VL
Problem Details: When setting SME vector lengths we clear TIF_SME to reenable SME traps, doing a reallocation of the backing storage on next use. We do this using clear_thread_flag() which operates on the current thread, meaning that when setting the vector length via ptrace we may both not force traps for the target t...
```diff diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c index 520b681a07bb..a61a1fd6492d 100644 --- a/arch/arm64/kernel/fpsimd.c +++ b/arch/arm64/kernel/fpsimd.c @@ -909,7 +909,7 @@ int vec_set_vector_length(struct task_struct *task, enum vec_type type, */ task->thread.svcr &= ~(SVCR_SM_MA...
1a3e4b4da39bbf540a379e21869faa74bb19d16f
Analyze and fix the following issue in the Linux kernel code: x86/alternative: Add a __alt_reloc_selftest() prototype
Problem Details: The newly introduced selftest function causes a warning when -Wmissing-prototypes is enabled: arch/x86/kernel/alternative.c:1461:32: error: no previous prototype for '__alt_reloc_selftest' [-Werror=missing-prototypes] Since it's only used locally, add the prototype directly in front of it. Fixes: ...
```diff diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index 2dcf3a06af09..934c23f24a3f 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -1531,6 +1531,7 @@ static noinline void __init int3_selftest(void) static __initdata int __alt_reloc_selftest_addr; +...
a0769f25a3a621e8bbfb5e2a26e8ae462c761e33
Analyze and fix the following issue in the Linux kernel code: HID: i2c-hid: add more DRM dependencies
Problem Details: When a symbol is selected that has extra dependencies, anything that selects it must have the same dependencies. With the added CONFIG_DRM reference from I2C_HID_CORE, this broke a couple of drivers that now also depend on DRM: WARNING: unmet direct dependencies detected for I2C_HID_CORE Depends on ...
```diff diff --git a/drivers/hid/i2c-hid/Kconfig b/drivers/hid/i2c-hid/Kconfig index 2bdb55203104..ef7c595c9403 100644 --- a/drivers/hid/i2c-hid/Kconfig +++ b/drivers/hid/i2c-hid/Kconfig @@ -9,6 +9,7 @@ if I2C_HID config I2C_HID_ACPI tristate "HID over I2C transport layer ACPI driver" depends on ACPI + depends on ...
513bf560c9b80e045ff7f32d109bb8f78cb5f0b7
Analyze and fix the following issue in the Linux kernel code: fbdev/ps3fb: Build without kernel device
Problem Details: Use fb_info() to print status message at the end of the probe function, which avoids decoding the devices. fb_info() works with or without an fbdev kernel device. Fixes the following error: ../drivers/video/fbdev/ps3fb.c: In function 'ps3fb_probe': ../drivers/video/fbdev/ps3fb.c:1172:40: error: 'struc...
```diff diff --git a/drivers/video/fbdev/ps3fb.c b/drivers/video/fbdev/ps3fb.c index 5aedc30c5f7e..64d291d6b153 100644 --- a/drivers/video/fbdev/ps3fb.c +++ b/drivers/video/fbdev/ps3fb.c @@ -1168,9 +1168,7 @@ static int ps3fb_probe(struct ps3_system_bus_device *dev) ps3_system_bus_set_drvdata(dev, info); - dev_in...
5a78d5db9c90c9dc84212f40a5f2687b7cafc8ec
Analyze and fix the following issue in the Linux kernel code: gpio: sim: mark the GPIO chip as a one that can sleep
Problem Details: Simulated chips use a mutex for synchronization in driver callbacks so they must not be called from interrupt context. Set the can_sleep field of the GPIO chip to true to force users to only use threaded irqs. Fixes: cb8c474e79be ("gpio: sim: new testing module") Signed-off-by: Bartosz Golaszewski <ba...
```diff diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c index 8b49b0abacd5..f1f6f1c32987 100644 --- a/drivers/gpio/gpio-sim.c +++ b/drivers/gpio/gpio-sim.c @@ -429,6 +429,7 @@ static int gpio_sim_add_bank(struct fwnode_handle *swnode, struct device *dev) gc->set_config = gpio_sim_set_config; gc->to_i...
f6e6e95ce16205025b7b8680a66c30a0c4ec2270
Analyze and fix the following issue in the Linux kernel code: efi/riscv: libstub: Fix comment about absolute relocation
Problem Details: We don't want absolute symbols references in the stub, so fix the double negation in the comment. Signed-off-by: Xiao Wang <xiao.w.wang@intel.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
```diff diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile index 16d64a34d1e1..6f74c7eddeb0 100644 --- a/drivers/firmware/efi/libstub/Makefile +++ b/drivers/firmware/efi/libstub/Makefile @@ -146,7 +146,7 @@ STUBCOPY_RELOC-$(CONFIG_ARM64) := R_AARCH64_ABS # For RISC-V, we don't...
8a132ecb6bc38f9ed0d2927acbcabeb1443613b2
Analyze and fix the following issue in the Linux kernel code: efi: Remove unused extern declaration efi_lookup_mapped_addr()
Problem Details: Since commit 50a0cb565246 ("x86/efi-bgrt: Fix kernel panic when mapping BGRT data") this extern declaration is not used anymore. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
```diff diff --git a/include/linux/efi.h b/include/linux/efi.h index ab088c662e88..e9004358f7bd 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -726,7 +726,6 @@ static inline efi_status_t efi_query_variable_store(u32 attributes, return EFI_SUCCESS; } #endif -extern void __iomem *efi_lookup_mapped_addr...
ce650a1663354a6cad7145e7f5131008458b39d4
Analyze and fix the following issue in the Linux kernel code: udp6: Fix __ip6_append_data()'s handling of MSG_SPLICE_PAGES
Problem Details: __ip6_append_data() can has a similar problem to __ip_append_data()[1] when asked to splice into a partially-built UDP message that has more than the frag-limit data and up to the MTU limit, but in the ipv6 case, it errors out with EINVAL. This can be triggered with something like: pipe(pfd);...
```diff diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index 1e8c90e97608..bc96559bbf0f 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1693,7 +1693,10 @@ alloc_new_skb: fraglen = datalen + fragheaderlen; copy = datalen - transhdrlen - fraggap - pagedlen; - if (copy < 0) { + ...
99b2f159b6e76b84357eae6dc2a206871aa630d5
Analyze and fix the following issue in the Linux kernel code: parisc: unaligned: Add required spaces after ','
Problem Details: Fix checkpatch warnings: unaligned.c:475: ERROR: space required after that ',' Signed-off-by: Yu Han <hanyu001@208suo.com> Signed-off-by: Helge Deller <deller@gmx.de>
```diff diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c index 033b9e50b44a..813062701922 100644 --- a/arch/parisc/kernel/unaligned.c +++ b/arch/parisc/kernel/unaligned.c @@ -337,7 +337,7 @@ static int emulate_std(struct pt_regs *regs, int frreg, int flop) : "r19", "r20", "r21", "r22", "r1...
dc8cbdd9c68d1e840aec926bee714c38f5e315a5
Analyze and fix the following issue in the Linux kernel code: arm64: dts: hi3798cv200: Fix clocks order of sd0
Problem Details: "ciu" and "biu" were incorrectly swapped. Fix their order. Signed-off-by: David Yang <mmyangfl@gmail.com> Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
```diff diff --git a/arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi b/arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi index a83b9d4f172e..ed1b5a7a6067 100644 --- a/arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi +++ b/arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi @@ -302,8 +302,8 @@ compatible = "snps,dw-mshc"; ...
dd59c6a32b7189f51947edc5b15939367729dd85
Analyze and fix the following issue in the Linux kernel code: wifi: rtw89: return failure if needed firmware elements are not recognized
Problem Details: WiFi 7 chips doesn't have static const tables defined in driver. If tables aren't loaded properly from firmware file, driver can get NULL pointer access exception. One way is to add the checking statements when trying to access these tables, but I choose to check them right after loading firmware eleme...
```diff diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h index bf6d8ef89097..fa4bbc4095ab 100644 --- a/drivers/net/wireless/realtek/rtw89/core.h +++ b/drivers/net/wireless/realtek/rtw89/core.h @@ -3382,6 +3382,7 @@ struct rtw89_chip_info { const char *fw_basename; u...
57a1ca6cf73b164ff93c2a541a6fc2337fd07b20
Analyze and fix the following issue in the Linux kernel code: drm/msm/dpu: fix DSC 1.2 enc subblock length
Problem Details: Both struct dpu_dsc_sub_blks instances declare enc subblock length to be 0x100, while the actual length is 0x9c (last register having offset 0x98). Reduce subblock length to remove the empty register space from being dumped. Fixes: 0d1b10c63346 ("drm/msm/dpu: add DSC 1.2 hw blocks for relevant chipset...
```diff diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c index ce369eeffa7d..713dfc079718 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c @@ -456,12 +456,12 @@ static const struct dpu_pingpong_su...
e550ad0e5c3d1a521413e6efb22729698a70110b
Analyze and fix the following issue in the Linux kernel code: drm/msm/dpu: fix DSC 1.2 block lengths
Problem Details: All DSC_BLK_1_2 declarations incorrectly pass 0x29c as the block length. This includes the common block itself, enc subblocks and some empty space around. Change that to pass 0x4 instead, the length of common register block itself. Fixes: 0d1b10c63346 ("drm/msm/dpu: add DSC 1.2 hw blocks for relevant ...
```diff diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h index c906b6864b5e..f8d16f9bf528 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h +++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_7_0_sm8350.h @@ -283,22 +283,22 @@ sta...
42d0d253ed03b961c325ff756eec0480cb4adc6b
Analyze and fix the following issue in the Linux kernel code: drm/msm/dpu: increase memtype count to 16 for sm8550
Problem Details: sm8550 has 16 vbif clients. This fixes the extra 2 clients (DMA4/DMA5) not having their memtype initialized. This fixes DMA4/DMA5 planes not displaying correctly. Fixes: efcd0107727c ("drm/msm/dpu: add support for SM8550") Signed-off-by: Jonathan Marek <jonathan@marek.ca> Reviewed-by: Dmitry Baryshko...
```diff diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h index 833be1167499..c43bda0bc708 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h +++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_9_0_sm8550.h @@ -440,8 +440,8 @@ const...
583893a66d731f5da010a3fa38a0460e05f0149b
Analyze and fix the following issue in the Linux kernel code: thunderbolt: Fix Thunderbolt 3 display flickering issue on 2nd hot plug onwards
Problem Details: Previously, on unplug events, the TMU mode was disabled first followed by the Time Synchronization Handshake, irrespective of whether the tb_switch_tmu_rate_write() API was successful or not. However, this caused a problem with Thunderbolt 3 (TBT3) devices, as the TSPacketInterval bits were always ena...
```diff diff --git a/drivers/thunderbolt/tmu.c b/drivers/thunderbolt/tmu.c index 1269f417515b..0dfd1e083994 100644 --- a/drivers/thunderbolt/tmu.c +++ b/drivers/thunderbolt/tmu.c @@ -579,7 +579,9 @@ int tb_switch_tmu_disable(struct tb_switch *sw) * uni-directional mode and we don't want to change it's TMU * mod...
e4060dad253352382b20420d8ef98daab24dbc17
Analyze and fix the following issue in the Linux kernel code: drm/nouveau/nvkm/dp: Add workaround to fix DP 1.3+ DPCD issues
Problem Details: Currently we use the drm_dp_dpcd_read_caps() helper in the DRM side of nouveau in order to read the DPCD of a DP connector, which makes sure we do the right thing and also check for extended DPCD caps. However, it turns out we're not currently doing this on the nvkm side since we don't have access to t...
```diff diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c index 40c8ea43c42f..b8ac66b4a2c4 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.c @@ -26,6 +26,8 @@ #include "head.h" #include "ior.h" +#in...
1cb9e2ef66d53b020842b18762e30d0eb4384de8
Analyze and fix the following issue in the Linux kernel code: drm/nouveau/gr: enable memory loads on helper invocation on all channels
Problem Details: We have a lurking bug where Fragment Shader Helper Invocations can't load from memory. But this is actually required in OpenGL and is causing random hangs or failures in random shaders. It is unknown how widespread this issue is, but shaders hitting this can end up with infinite loops. We enable thos...
```diff diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h index 00dbeda7e346..de161e7a04aa 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h @@ -117,6 +117,7 @@ void gk104_grctx_generate...
8198950ccb7d311f8b4389441d8dcb597f926340
Analyze and fix the following issue in the Linux kernel code: wifi: ath12k: avoid deadlock by change ieee80211_queue_work for regd_update_work
Problem Details: Deadlock is easily happened while shutdown wlan interface such as run "ifconfig wlan0 down". The reason is because when ar->regd_update_work is ran, it will call wiphy_lock(ar->hw->wiphy) in function ath12k_regd_update() which is running in workqueue of ieee80211_local queued by ieee80211_queue_work()...
```diff diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c index fab4d33c8984..9ed33e2d6da0 100644 --- a/drivers/net/wireless/ath/ath12k/wmi.c +++ b/drivers/net/wireless/ath/ath12k/wmi.c @@ -5473,7 +5473,7 @@ static int ath12k_reg_chan_list_event(struct ath12k_base *ab, struct sk...
dd9d7c18a78dfab5133e0254eae100107b660fd8
Analyze and fix the following issue in the Linux kernel code: drm/drm_plane.h: fix grammar of the comment
Problem Details: Signed-off-by: Sui Jingfeng <suijingfeng@loongson.cn> Link: https://patchwork.freedesktop.org/patch/msgid/20230409131547.494128-1-15330273260@189.cn Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
```diff diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h index 51291983ea44..79d62856defb 100644 --- a/include/drm/drm_plane.h +++ b/include/drm/drm_plane.h @@ -56,7 +56,7 @@ struct drm_plane_state { /** * @crtc: * - * Currently bound CRTC, NULL if disabled. Do not this write directly, + * Curre...
e9d699af3f65d62cf195f0e7a039400093ab2af2
Analyze and fix the following issue in the Linux kernel code: drm/bridge: it6505: Check power state with it6505->powered in IRQ handler
Problem Details: On system resume, the driver might call it6505_poweron directly if the runtime PM hasn't been enabled. In such case, pm_runtime_get_if_in_use will always return 0 because dev->power.runtime_status stays at RPM_SUSPENDED, and the IRQ will never be handled. Use it6505->powered from the driver struct fix...
```diff diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c index 504d51c42f79..aadb396508c5 100644 --- a/drivers/gpu/drm/bridge/ite-it6505.c +++ b/drivers/gpu/drm/bridge/ite-it6505.c @@ -2517,9 +2517,11 @@ static irqreturn_t it6505_int_threaded_handler(int unused, void *data) }; ...
f11e5bd159b08976db9e7a9eabbf0318dfe5429d
Analyze and fix the following issue in the Linux kernel code: bonding: support balance-alb with openvswitch
Problem Details: Commit d5410ac7b0ba ("net:bonding:support balance-alb interface with vlan to bridge") introduced a support for balance-alb mode for interfaces connected to the linux bridge by fixing missing matching of MAC entry in FDB. In our testing we discovered that it still does not work when the bond is connecte...
```diff diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index b9dbad3a8af8..cc5049eb25f8 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -668,7 +668,7 @@ static struct slave *rlb_arp_xmit(struct sk_buff *skb, struct bonding *bond) dev = ip_dev_find(de...
1ab2ddc4afdd84632c24b23dbe67eb4ca423dcc5
Analyze and fix the following issue in the Linux kernel code: drm/panel: Fix todo indentation for panel prepared/enabled cleanup
Problem Details: In commit d2aacaf07395 ("drm/panel: Check for already prepared/enabled in drm_panel") the formatting for a code block was not quite right. This caused an error when building htmldocs: Documentation/gpu/todo.rst:469: ERROR: Unexpected indentation. Fix the error by using the proper syntax for a code ...
```diff diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index aa0052f9b93b..139980487ccf 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -465,7 +465,8 @@ Clean up checks for already prepared/enabled in panels In a whole pile of panel drivers, we have code to make the ...
c0571b20fca4acebd4cb5fcfd07ca4654e9d63dd
Analyze and fix the following issue in the Linux kernel code: drm/panel: Fix kernel-doc typo for `follower_lock`
Problem Details: In the kernel doc for the `follower_lock` member of `struct drm_panel` there was a typo where it was called `followers_lock`. This resulted in a warning when making "htmldocs": ./include/drm/drm_panel.h:270: warning: Function parameter or member 'follower_lock' not described in 'drm_panel' Fix th...
```diff diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h index d6c73f79c131..10015891b056 100644 --- a/include/drm/drm_panel.h +++ b/include/drm/drm_panel.h @@ -238,7 +238,7 @@ struct drm_panel { struct list_head followers; /** - * @followers_lock: + * @follower_lock: * * Lock for followers ...
7d695d83767cdb4288b101affef6d1d1bcf44d31
Analyze and fix the following issue in the Linux kernel code: serial: core: Fix serial_base_match() after fixing controller port name
Problem Details: While fixing DEVNAME to be more usable, I broke serial_base_match() as the ctrl and port prefix for device names seemed unnecessary. The prefixes are still needed by serial_base_match() to probe the serial base controller port, and serial tx is now broken. Let's fix the issue by checking against dev-...
```diff diff --git a/drivers/tty/serial/serial_base_bus.c b/drivers/tty/serial/serial_base_bus.c index 11e2ff9cbe4d..0892369f98d2 100644 --- a/drivers/tty/serial/serial_base_bus.c +++ b/drivers/tty/serial/serial_base_bus.c @@ -29,9 +29,15 @@ static const struct device_type serial_port_type = { static int serial_base...
534fc31d09b706a16d83533e16b5dc855caf7576
Analyze and fix the following issue in the Linux kernel code: xen/netback: Fix buffer overrun triggered by unusual packet
Problem Details: It is possible that a guest can send a packet that contains a head + 18 slots and yet has a len <= XEN_NETBACK_TX_COPY_LEN. This causes nr_slots to underflow in xenvif_get_requests() which then causes the subsequent loop's termination condition to be wrong, causing a buffer overrun of queue->tx_map_ops...
```diff diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index c8d20cddf658..88f760a7cbc3 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -396,7 +396,7 @@ static void xenvif_get_requests(struct xenvif_queue *queue, struct gnttab_map_grant_ref...
e520d0b6be950ce3738cf4b9bd3b392be818f1dc
Analyze and fix the following issue in the Linux kernel code: cpufreq: brcmstb-avs-cpufreq: Fix -Warray-bounds bug
Problem Details: Allocate extra space for terminating element at: drivers/cpufreq/brcmstb-avs-cpufreq.c: 449 table[i].frequency = CPUFREQ_TABLE_END; and add code comment to make this clear. This fixes the following -Warray-bounds warning seen after building ARM with multi_v7_defconfig (GCC 13): In function '...
```diff diff --git a/drivers/cpufreq/brcmstb-avs-cpufreq.c b/drivers/cpufreq/brcmstb-avs-cpufreq.c index 1bdd513bcd19..35fb3a559ea9 100644 --- a/drivers/cpufreq/brcmstb-avs-cpufreq.c +++ b/drivers/cpufreq/brcmstb-avs-cpufreq.c @@ -434,7 +434,11 @@ brcm_avs_get_freq_table(struct device *dev, struct private_data *priv) ...
0f71c9caf26726efea674646f566984e735cc3b9
Analyze and fix the following issue in the Linux kernel code: udp: Fix __ip_append_data()'s handling of MSG_SPLICE_PAGES
Problem Details: __ip_append_data() can get into an infinite loop when asked to splice into a partially-built UDP message that has more than the frag-limit data and up to the MTU limit. Something like: pipe(pfd); sfd = socket(AF_INET, SOCK_DGRAM, 0); connect(sfd, ...); send(sfd, buffer...
```diff diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 54d2d3a2d850..6ba1a0fafbaa 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -1158,10 +1158,15 @@ alloc_new_skb: } copy = datalen - transhdrlen - fraggap - pagedlen; + /* [!] NOTE: copy will be negative if pagedlen>0 + *...
547b006d192261067323efe4b1a12287cf3e4ac2
Analyze and fix the following issue in the Linux kernel code: net: fec: delete fec_ptp_disable_hwts()
Problem Details: Commit 340746398b67 ("net: fec: fix hardware time stamping by external devices") was overly cautious with calling fec_ptp_disable_hwts() when cmd == SIOCSHWTSTAMP and use_fec_hwts == false, because use_fec_hwts is based on a runtime invariant (phy_has_hwtstamp()). Thus, if use_fec_hwts is false, then f...
```diff diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h index ec64067ca782..110f2e9f3e3f 100644 --- a/drivers/net/ethernet/freescale/fec.h +++ b/drivers/net/ethernet/freescale/fec.h @@ -698,7 +698,6 @@ struct fec_enet_private { void fec_ptp_init(struct platform_device *pdev, in...
62da08331f1a2bef9d0148613133ce8e640a2f8d
Analyze and fix the following issue in the Linux kernel code: net/mlx5e: Set proper IPsec source port in L4 selector
Problem Details: Fix typo in setup_fte_upper_proto_match() where destination UDP port was used instead of source port. Fixes: a7385187a386 ("net/mlx5e: IPsec, support upper protocol selector field offload") Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Link: https://lore.kernel.org/r/ffc024a4d192113103f392b050268...
```diff diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c index dbe87bf89c0d..832d36be4a17 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c @@ -8...
c635ca45a7a2023904a1f851e99319af7b87017d
Analyze and fix the following issue in the Linux kernel code: net/mlx5: fs_core: Skip the FTs in the same FS_TYPE_PRIO_CHAINS fs_prio
Problem Details: In the cited commit, new type of FS_TYPE_PRIO_CHAINS fs_prio was added to support multiple parallel namespaces for multi-chains. And we skip all the flow tables under the fs_node of this type unconditionally, when searching for the next or previous flow table to connect for a new table. As this search...
```diff diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c index 221723694d44..6b069fa411c5 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c @@ -889,7 +889,7 @@ static struct mlx5_flow_t...
7e6311f04b41174ccc738d37dcb4b93cd4de98b0
Analyze and fix the following issue in the Linux kernel code: power: supply: qcom_pmi8998_charger: fix charger status
Problem Details: The INHIBIT_CHARGE status bit means the battery has reached a pre-programmed charge limit which is some voltage offset below the target float voltage. This should be reported as a STATUS_FULL rather than UNKNOWN, fix it. Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org> Link: https://lore.kern...
```diff diff --git a/drivers/power/supply/qcom_pmi8998_charger.c b/drivers/power/supply/qcom_pmi8998_charger.c index c7ec9aeb7a64..10f4dd0caca1 100644 --- a/drivers/power/supply/qcom_pmi8998_charger.c +++ b/drivers/power/supply/qcom_pmi8998_charger.c @@ -517,9 +517,9 @@ static int smb2_get_prop_status(struct smb2_chip ...
f57f5838c044d1554b71186d3d277619eab58d31
Analyze and fix the following issue in the Linux kernel code: power: supply: qcom_pmi8998_charger: remove CHARGE_CONTROL_LIMIT_* props
Problem Details: These property were intended to allow the power supply to be treated as a cooling device, however the cooling device interface has been dropped from the psy core code. They now just duplicate the CURRENT_NOW and CURRENT_MAX properties and are generally confusing, drop them. Signed-off-by: Caleb Connol...
```diff diff --git a/drivers/power/supply/qcom_pmi8998_charger.c b/drivers/power/supply/qcom_pmi8998_charger.c index cac89d233c38..c7ec9aeb7a64 100644 --- a/drivers/power/supply/qcom_pmi8998_charger.c +++ b/drivers/power/supply/qcom_pmi8998_charger.c @@ -409,8 +409,6 @@ static enum power_supply_property smb2_properties...
13a0d1088c8fea1565e30a169188b59bdd77759e
Analyze and fix the following issue in the Linux kernel code: power: supply: qcom_pmi8998_charger: fix uninitialized variable
Problem Details: smatch warnings: drivers/power/supply/qcom_pmi8998_charger.c:565 smb2_status_change_work() error: uninitialized symbol 'usb_online'. usb_online is used uninitialized whenever smb2_get_prop_usb_online() returns a negative value. Thus, fix the issue by initializing usb_online to 0. Fixes: 8648aeb5d7...
```diff diff --git a/drivers/power/supply/qcom_pmi8998_charger.c b/drivers/power/supply/qcom_pmi8998_charger.c index d16c5ee17249..cac89d233c38 100644 --- a/drivers/power/supply/qcom_pmi8998_charger.c +++ b/drivers/power/supply/qcom_pmi8998_charger.c @@ -556,7 +556,8 @@ static int smb2_set_current_limit(struct smb2_chi...
d518f8cc10af7a1265595fccf553a3a5f7121e4f
Analyze and fix the following issue in the Linux kernel code: KVM: SVM: Fix dead KVM_BUG() code in LBR MSR virtualization
Problem Details: Refactor KVM's handling of LBR MSRs on SVM to avoid a second layer of case statements, and thus eliminate a dead KVM_BUG() call, which (a) will never be hit in the current code base and (b) if a future commit breaks things, will never fire as KVM passes "false" instead "true" or '1' for the KVM_BUG() c...
```diff diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 1bc0936bbd51..623916221ff7 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -980,43 +980,22 @@ static void svm_disable_lbrv(struct kvm_vcpu *vcpu) svm_copy_lbrs(svm->vmcb01.ptr, svm->vmcb); } -static int svm_get_lbr_msr(...
550ba57faa04042956079b8d09ec0f83bef8817f
Analyze and fix the following issue in the Linux kernel code: KVM: VMX: Drop unnecessary vmx_fb_clear_ctrl_available "cache"
Problem Details: Now that KVM snapshots the host's MSR_IA32_ARCH_CAPABILITIES, drop the similar snapshot/cache of whether or not KVM is allowed to manipulate MSR_IA32_MCU_OPT_CTRL.FB_CLEAR_DIS. The motivation for the cache was presumably to avoid the RDMSR, e.g. boot_cpu_has_bug() is quite cheap, and modifying the vCP...
```diff diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index f0ec9acae86c..e6d1ce2d230c 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -237,9 +237,6 @@ static const struct { #define L1D_CACHE_ORDER 4 static void *vmx_l1d_flush_pages; -/* Control for disabling CPU Fill buffer clear...
54acee601b87cfe43e17f6812449e5eb3eab39f9
Analyze and fix the following issue in the Linux kernel code: x86/kbuild: Fix Documentation/ reference
Problem Details: x86 documentation moved. Fix the reference. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reported-by: kernel test robot <lkp@intel.com> Link: https://lore.kernel.org/oe-kbuild-all/202307271956.IxoG9X0c-lkp@intel.com/
```diff diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index e860f805199f..99e7552fff4f 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1969,7 +1969,7 @@ config X86_USER_SHADOW_STACK CPUs supporting shadow stacks were first released in 2020. - See Documentation/x86/shstk.rst for more information. +...
a5f6c2ace9974adf92ce65dacca8126d90adabfe
Analyze and fix the following issue in the Linux kernel code: x86/shstk: Add user control-protection fault handler
Problem Details: A control-protection fault is triggered when a control-flow transfer attempt violates Shadow Stack or Indirect Branch Tracking constraints. For example, the return address for a RET instruction differs from the copy on the shadow stack. There already exists a control-protection fault handler for handl...
```diff diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 8d0afa11bed5..79a6730fa0eb 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -682,7 +682,7 @@ asmlinkage void do_rseq_syscall(struct pt_regs *regs) */ static_assert(NSIGILL == 11); static_assert(NSIGFPE == 15); -sta...
6beb99580bc040aed1d5fe7ed9083a4be77f3c20
Analyze and fix the following issue in the Linux kernel code: mm: Don't allow write GUPs to shadow stack memory
Problem Details: The x86 Control-flow Enforcement Technology (CET) feature includes a new type of memory called shadow stack. This shadow stack memory has some unusual properties, which requires some core mm changes to function properly. In userspace, shadow stack memory is writable only in very specific, controlled w...
```diff diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 61b52445e4d6..e95cfd3f1dda 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -1631,6 +1631,11 @@ static inline bool __pte_access_permitted(unsigned long pteval, bool write) { unsigned long nee...
30a6e0b4553dbf2d935d26945788d37ddb234fa7
Analyze and fix the following issue in the Linux kernel code: KVM: selftests: Convert VMX's PMU capabilities test to printf guest asserts
Problem Details: Convert x86's VMX PMU capabilities test to use printf-based guest asserts. Opportunstically add a helper to do the WRMSR+assert so as to reduce the amount of copy+paste needed to spit out debug information. Link: https://lore.kernel.org/r/20230729003643.1053367-31-seanjc@google.com Signed-off-by: Sean...
```diff diff --git a/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c b/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c index 34efd57c2b32..ba09d5a01c39 100644 --- a/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c +++ b/tools/testing/selftests/kvm/x86_64/vmx_pmu_caps_test.c @@ -10,6 +10,7 @@ * and...
a925f799428168e1a849509c0f425673b62e53ad
Analyze and fix the following issue in the Linux kernel code: KVM: selftests: Convert the nSVM software interrupt test to printf guest asserts
Problem Details: Convert x86's nested SVM software interrupt injection test to use printf- based guest asserts. Opportunistically use GUEST_ASSERT() and GUEST_FAIL() in a few locations to spit out more debug information. Link: https://lore.kernel.org/r/20230729003643.1053367-28-seanjc@google.com Signed-off-by: Sean C...
```diff diff --git a/tools/testing/selftests/kvm/x86_64/svm_nested_soft_inject_test.c b/tools/testing/selftests/kvm/x86_64/svm_nested_soft_inject_test.c index 4e2479716da6..c908412c5754 100644 --- a/tools/testing/selftests/kvm/x86_64/svm_nested_soft_inject_test.c +++ b/tools/testing/selftests/kvm/x86_64/svm_nested_soft...
06b651d250e5eea0a1c1fd31fbbc0e0b27f66592
Analyze and fix the following issue in the Linux kernel code: KVM: selftests: Convert x86's CPUID test to printf style GUEST_ASSERT
Problem Details: Convert x86's CPUID test to use printf-based GUEST_ASSERT_EQ() so that the test prints out debug information. Note, the test previously used REPORT_GUEST_ASSERT_2(), but that was pointless because none of the guest-side code passed any parameters to the assert. Link: https://lore.kernel.org/r/2023072...
```diff diff --git a/tools/testing/selftests/kvm/x86_64/cpuid_test.c b/tools/testing/selftests/kvm/x86_64/cpuid_test.c index d3c3aa93f090..eb1b65ffc0d5 100644 --- a/tools/testing/selftests/kvm/x86_64/cpuid_test.c +++ b/tools/testing/selftests/kvm/x86_64/cpuid_test.c @@ -4,6 +4,8 @@ * * Generic tests for KVM CPUID s...
3d9bd831175e898284eb92dadac7049cd055bad6
Analyze and fix the following issue in the Linux kernel code: KVM: selftests: Convert steal_time test to printf style GUEST_ASSERT
Problem Details: Convert the steal_time test to use printf-based GUEST_ASERT. Opportunistically use GUEST_ASSERT_EQ() and GUEST_ASSERT_NE() so that the test spits out debug information on failure. Link: https://lore.kernel.org/r/20230729003643.1053367-20-seanjc@google.com Signed-off-by: Sean Christopherson <seanjc@goo...
```diff diff --git a/tools/testing/selftests/kvm/steal_time.c b/tools/testing/selftests/kvm/steal_time.c index c87f38712073..8649c8545882 100644 --- a/tools/testing/selftests/kvm/steal_time.c +++ b/tools/testing/selftests/kvm/steal_time.c @@ -4,6 +4,8 @@ * * Copyright (C) 2020, Red Hat, Inc. */ +#define USE_GUEST...
bac9aeecc387a1436567b6e74f8257f7e8c4d194
Analyze and fix the following issue in the Linux kernel code: KVM: selftests: Convert debug-exceptions to printf style GUEST_ASSERT
Problem Details: Convert ARM's debug exceptions test to use printf-based GUEST_ASSERT(). Opportunistically Use GUEST_ASSERT_EQ() in guest_code_ss() so that the expected vs. actual values get printed out. Link: https://lore.kernel.org/r/20230729003643.1053367-12-seanjc@google.com Signed-off-by: Sean Christopherson <se...
```diff diff --git a/tools/testing/selftests/kvm/aarch64/debug-exceptions.c b/tools/testing/selftests/kvm/aarch64/debug-exceptions.c index 637be796086f..fdd5b05e1b0e 100644 --- a/tools/testing/selftests/kvm/aarch64/debug-exceptions.c +++ b/tools/testing/selftests/kvm/aarch64/debug-exceptions.c @@ -1,4 +1,6 @@ // SPDX-...
289c2b4db8f336b96d918eb0c548382aee71ed79
Analyze and fix the following issue in the Linux kernel code: KVM: selftests: Add formatted guest assert support in ucall framework
Problem Details: Add printf-based GUEST_ASSERT macros and accompanying host-side support to provide an assert-specific versions of GUEST_PRINTF(). To make it easier to parse assert messages, for humans and bots alike, preserve/use the same layout as host asserts, e.g. in the example below, the reported expression, fil...
```diff diff --git a/tools/testing/selftests/kvm/include/ucall_common.h b/tools/testing/selftests/kvm/include/ucall_common.h index b5548aeba9f0..4ce11c15285a 100644 --- a/tools/testing/selftests/kvm/include/ucall_common.h +++ b/tools/testing/selftests/kvm/include/ucall_common.h @@ -36,6 +36,8 @@ void *ucall_arch_get_uc...
215a681710a554b224d743e4a9cd68965889713c
Analyze and fix the following issue in the Linux kernel code: KVM: selftests: Add additional pages to the guest to accommodate ucall
Problem Details: Add additional pages to the guest to account for the number of pages the ucall headers need. The only reason things worked before is the ucall headers are fairly small. If they were ever to increase in size the guest could run out of memory. This is done in preparation for adding string formatting o...
```diff diff --git a/tools/testing/selftests/kvm/include/ucall_common.h b/tools/testing/selftests/kvm/include/ucall_common.h index 1a6aaef5ccae..bcbb362aa77f 100644 --- a/tools/testing/selftests/kvm/include/ucall_common.h +++ b/tools/testing/selftests/kvm/include/ucall_common.h @@ -34,6 +34,7 @@ void *ucall_arch_get_uc...
6783ca4105a75d1ba4f89b13cef1bc1f677c41e5
Analyze and fix the following issue in the Linux kernel code: KVM: selftests: Add a shameful hack to preserve/clobber GPRs across ucall
Problem Details: Preserve or clobber all GPRs (except RIP and RSP, as they're saved and restored via the VMCS) when performing a ucall on x86 to fudge around a horrific long-standing bug in selftests' nested VMX support where L2's GPRs are not preserved across a nested VM-Exit. I.e. if a test triggers a nested VM-Exit...
```diff diff --git a/tools/testing/selftests/kvm/lib/x86_64/ucall.c b/tools/testing/selftests/kvm/lib/x86_64/ucall.c index 4d41dc63cc9e..a53df3ece2f8 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/ucall.c +++ b/tools/testing/selftests/kvm/lib/x86_64/ucall.c @@ -14,8 +14,36 @@ void ucall_arch_init(struct kvm_vm *vm...
416c6d01244ecbf0abfdb898fd091b50ef951b48
Analyze and fix the following issue in the Linux kernel code: selftests/bpf: fix static assert compilation issue for test_cls_*.c
Problem Details: commit bdeeed3498c7 ("libbpf: fix offsetof() and container_of() to work with CO-RE") ...was backported to stable trees such as 5.15. The problem is that with older LLVM/clang (14/15) - which is often used for older kernels - we see compilation failures in BPF selftests now: In file included from prog...
```diff diff --git a/tools/testing/selftests/bpf/progs/test_cls_redirect.h b/tools/testing/selftests/bpf/progs/test_cls_redirect.h index 76eab0aacba0..233b089d1fba 100644 --- a/tools/testing/selftests/bpf/progs/test_cls_redirect.h +++ b/tools/testing/selftests/bpf/progs/test_cls_redirect.h @@ -12,6 +12,15 @@ #include ...
6a5a148aaf14747570cc634f9cdfcb0393f5617f
Analyze and fix the following issue in the Linux kernel code: bpf: fix bpf_probe_read_kernel prototype mismatch
Problem Details: bpf_probe_read_kernel() has a __weak definition in core.c and another definition with an incompatible prototype in kernel/trace/bpf_trace.c, when CONFIG_BPF_EVENTS is enabled. Since the two are incompatible, there cannot be a shared declaration in a header file, but the lack of a prototype causes a W=...
```diff diff --git a/include/linux/bpf.h b/include/linux/bpf.h index ceaa8c23287f..abe75063630b 100644 --- a/include/linux/bpf.h +++ b/include/linux/bpf.h @@ -2661,6 +2661,18 @@ static inline void bpf_dynptr_set_rdonly(struct bpf_dynptr_kern *ptr) } #endif /* CONFIG_BPF_SYSCALL */ +static __always_inline int +bpf_p...
94e38c956b97d3bb3f6cc8215efb13ea851e3a91
Analyze and fix the following issue in the Linux kernel code: libbpf: fix typos in Makefile
Problem Details: Capitalize ABI (acronym) and fix spelling of "destination". Fixes: 706819495921 ("libbpf: Improve usability of libbpf Makefile") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Andrii Nakryiko <andrii@kernel.org...
```diff diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile index cf7f02c67968..4be7144e4803 100644 --- a/tools/lib/bpf/Makefile +++ b/tools/lib/bpf/Makefile @@ -293,11 +293,11 @@ help: @echo ' HINT: use "V=1" to enable verbose build' @echo ' all - build libraries and pkgconfig' @echo ' clean - ...
640c503d7dbd7d34a62099c933f4db0ed77ccbec
Analyze and fix the following issue in the Linux kernel code: Documentation: kdump: Add va_kernel_pa_offset for RISCV64
Problem Details: RISC-V Linux exports "va_kernel_pa_offset" in vmcoreinfo to help Crash-utility translate the kernel virtual address correctly. Here adds the definition of "va_kernel_pa_offset". Fixes: 3335068f8721 ("riscv: Use PUD/P4D/PGD pages for the linear mapping") Link: https://lore.kernel.org/linux-riscv/20230...
```diff diff --git a/Documentation/admin-guide/kdump/vmcoreinfo.rst b/Documentation/admin-guide/kdump/vmcoreinfo.rst index c18d94fa6470..f8ebb63b6c5d 100644 --- a/Documentation/admin-guide/kdump/vmcoreinfo.rst +++ b/Documentation/admin-guide/kdump/vmcoreinfo.rst @@ -624,3 +624,9 @@ Used to get the correct ranges: * ...
fbe7d19d2b7fcbd38905ba9f691be8f245c6faa6
Analyze and fix the following issue in the Linux kernel code: riscv: Export va_kernel_pa_offset in vmcoreinfo
Problem Details: Since RISC-V Linux v6.4, the commit 3335068f8721 ("riscv: Use PUD/P4D/PGD pages for the linear mapping") changes phys_ram_base from the physical start of the kernel to the actual start of the DRAM. The Crash-utility's VTOP() still uses phys_ram_base and kernel_map.virt_addr to translate kernel virtual...
```diff diff --git a/arch/riscv/kernel/crash_core.c b/arch/riscv/kernel/crash_core.c index b351a3c01355..55f1d7856b54 100644 --- a/arch/riscv/kernel/crash_core.c +++ b/arch/riscv/kernel/crash_core.c @@ -18,4 +18,6 @@ void arch_crash_save_vmcoreinfo(void) vmcoreinfo_append_str("NUMBER(MODULES_END)=0x%lx\n", MODULES_EN...
568701fee36652a7660ed667a3980c945d8051e0
Analyze and fix the following issue in the Linux kernel code: RISC-V: ACPI: Fix acpi_os_ioremap to return iomem address
Problem Details: acpi_os_ioremap() currently is a wrapper to memremap() on RISC-V. But the callers of acpi_os_ioremap() expect it to return __iomem address and hence sparse tool reports a new warning. Fix this issue by type casting to __iomem type. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.k...
```diff diff --git a/arch/riscv/include/asm/acpi.h b/arch/riscv/include/asm/acpi.h index f71ce21ff684..d5604d2073bc 100644 --- a/arch/riscv/include/asm/acpi.h +++ b/arch/riscv/include/asm/acpi.h @@ -19,7 +19,7 @@ typedef u64 phys_cpuid_t; #define PHYS_CPUID_INVALID INVALID_HARTID /* ACPI table mapping after acpi_pe...
174e8ac0272d54a9c1cc23185665f715c36620ad
Analyze and fix the following issue in the Linux kernel code: riscv: alternatives: fix a typo in comment
Problem Details: In the usage of ALTERNATIVE, "always" is misspelled as "alwyas". Signed-off-by: Yuan Tan <tanyuan@tinylab.org> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230723165155.4896-1-tanyuan@tinylab.org Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
```diff diff --git a/arch/riscv/include/asm/alternative-macros.h b/arch/riscv/include/asm/alternative-macros.h index b8c55fb3ab2c..721ec275ce57 100644 --- a/arch/riscv/include/asm/alternative-macros.h +++ b/arch/riscv/include/asm/alternative-macros.h @@ -146,7 +146,7 @@ * vendor_id: The CPU vendor ID. * patch_id: T...
25696067202f047e22c1562f1f56b0e2eb547d1a
Analyze and fix the following issue in the Linux kernel code: selftests: riscv: Fix compilation error with vstate_exec_nolibc.c
Problem Details: The following error happens: In file included from vstate_exec_nolibc.c:2: /usr/include/riscv64-linux-gnu/sys/prctl.h:42:12: error: conflicting types for ‘prctl’; h ave ‘int(int, ...)’ 42 | extern int prctl (int __option, ...) __THROW; | ^~~~~ In file included from ./../../../../in...
```diff diff --git a/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c b/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c index 5cbc392944a6..2c0d2b1126c1 100644 --- a/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c +++ b/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c @@ -1,6 +1,4 ...
8c82d2bf5944123d8e90d01bf27655497d9aa321
Analyze and fix the following issue in the Linux kernel code: selftests/riscv: fix potential build failure during the "emit_tests" step
Problem Details: The riscv selftests (which were modeled after the arm64 selftests) are improperly declaring the "emit_tests" target to depend upon the "all" target. This approach, when combined with commit 9fc96c7c19df ("selftests: error out if kernel header files are not yet built"), has caused build failures [1] on ...
```diff diff --git a/tools/testing/selftests/riscv/Makefile b/tools/testing/selftests/riscv/Makefile index 9dd629cc86aa..f4b3d5c9af5b 100644 --- a/tools/testing/selftests/riscv/Makefile +++ b/tools/testing/selftests/riscv/Makefile @@ -43,7 +43,7 @@ run_tests: all done # Avoid any output on non riscv on emit_tests ...
0d033770d43a7aa36025bcef9a60da7fb750f735
Analyze and fix the following issue in the Linux kernel code: KVM: x86: Fix KVM_CAP_SYNC_REGS's sync_regs() TOCTOU issues
Problem Details: In a spirit of using a sledgehammer to crack a nut, make sync_regs() feed __set_sregs() and kvm_vcpu_ioctl_x86_set_vcpu_events() with kernel's own copy of data. Both __set_sregs() and kvm_vcpu_ioctl_x86_set_vcpu_events() assume they have exclusive rights to structs they operate on. While this is true ...
```diff diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index a6b9bea62fb8..0145d844283b 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -11777,15 +11777,22 @@ static int sync_regs(struct kvm_vcpu *vcpu) __set_regs(vcpu, &vcpu->run->s.regs.regs); vcpu->run->kvm_dirty_regs &= ~KVM_SYNC_X86_REGS; ...
ce53ad81ed36c24aff075f94474adecfabfcf239
Analyze and fix the following issue in the Linux kernel code: EDAC/igen6: Fix the issue of no error events
Problem Details: Current igen6_edac checks for pending errors before the registration of the error handler. However, there is a possibility that the error occurs during the registration process, leading to unhandled pending errors and no future error events. This issue can be reproduced by repeatedly injecting errors d...
```diff diff --git a/drivers/edac/igen6_edac.c b/drivers/edac/igen6_edac.c index 544dd19072ea..1a18693294db 100644 --- a/drivers/edac/igen6_edac.c +++ b/drivers/edac/igen6_edac.c @@ -27,7 +27,7 @@ #include "edac_mc.h" #include "edac_module.h" -#define IGEN6_REVISION "v2.5" +#define IGEN6_REVISION "v2.5.1" #defin...
a2c15fece4b47e2e5a89a3bf273c9c6517c3e8a5
Analyze and fix the following issue in the Linux kernel code: cgroup: fix obsolete function name above css_free_rwork_fn()
Problem Details: Since commit 8f36aaec9c92 ("cgroup: Use rcu_work instead of explicit rcu and work item"), css_free_work_fn has been renamed to css_free_rwork_fn. Update corresponding comment. Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Signed-off-by: Tejun Heo <tj@kernel.org>
```diff diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index 33b586db14ef..f9cde56cf947 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -5301,7 +5301,7 @@ static struct cftype cgroup_psi_files[] = { * RCU callback. * * 4. After the grace period, the css can be freed. Implemen...
05f76ae95e71149a9c7085c323d3f710dff22730
Analyze and fix the following issue in the Linux kernel code: cgroup/cpuset: fix kernel-doc
Problem Details: Add kernel-doc of param @rotor to fix warnings: kernel/cgroup/cpuset.c:4162: warning: Function parameter or member 'rotor' not described in 'cpuset_spread_node' kernel/cgroup/cpuset.c:3771: warning: Function parameter or member 'work' not described in 'cpuset_hotplug_workfn' Signed-off-by: Cai Xinche...
```diff diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c index b278b60ed788..58ec88efa4f8 100644 --- a/kernel/cgroup/cpuset.c +++ b/kernel/cgroup/cpuset.c @@ -3753,6 +3753,7 @@ unlock: /** * cpuset_hotplug_workfn - handle CPU/memory hotunplug for a cpuset + * @work: unused * * This function is call...
30ff01ee99bc961e5f278f997e41ffb94785a88b
Analyze and fix the following issue in the Linux kernel code: pds_core: Fix documentation for pds_client_register
Problem Details: The documentation above pds_client_register states that it returns 0 on success and negative on error. However, it actually returns a positive client ID on success and negative on error. Fix the documentation to state exactly that. Signed-off-by: Brett Creeley <brett.creeley@amd.com> Signed-off-by: Sh...
```diff diff --git a/drivers/net/ethernet/amd/pds_core/auxbus.c b/drivers/net/ethernet/amd/pds_core/auxbus.c index 561af8e5b3ea..6787a5fae908 100644 --- a/drivers/net/ethernet/amd/pds_core/auxbus.c +++ b/drivers/net/ethernet/amd/pds_core/auxbus.c @@ -11,7 +11,7 @@ * @pf_pdev: ptr to the PF driver struct * @devname:...
172044e30b00977784269e8ab72132a48293c654
Analyze and fix the following issue in the Linux kernel code: dt-bindings: clock: xlnx,versal-clk: drop select:false
Problem Details: select:false makes the schema basically ignored and not effective, which is clearly not what we want for a device binding. Fixes: 352546805a44 ("dt-bindings: clock: Add bindings for versal clock driver") Cc: <stable@vger.kernel.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> L...
```diff diff --git a/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml b/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml index e9cf747bf89b..04ea327d5313 100644 --- a/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml +++ b/Documentation/devicetree/bindings/clock/xlnx,versal-clk.yaml @...
497c3a5fb3ed4a59c4d3c460c70393dd609815dc
Analyze and fix the following issue in the Linux kernel code: cirrus: cs89x0: fix the return value handle and remove redundant dev_warn() for platform_get_irq()
Problem Details: There is no possible for platform_get_irq() to return 0 and the return value of platform_get_irq() is more sensible to show the error reason. And there is no need to call the dev_warn() function directly to print a custom message when handling an error from platform_get_irq() function as it is going t...
```diff diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c index 7c51fd9fc9be..d323c5c23521 100644 --- a/drivers/net/ethernet/cirrus/cs89x0.c +++ b/drivers/net/ethernet/cirrus/cs89x0.c @@ -1854,9 +1854,8 @@ static int __init cs89x0_platform_probe(struct platform_device *pdev) re...
ae1d60c41e581be049aa84dd53aca89027101ce1
Analyze and fix the following issue in the Linux kernel code: net: hisilicon: fix the return value handle and remove redundant netdev_err() for platform_get_irq()
Problem Details: There is no possible for platform_get_irq() to return 0 and the return value of platform_get_irq() is more sensible to show the error reason. And there is no need to call the netdev_err() function directly to print a custom message when handling an error from platform_get_irq() function as it is going...
```diff diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c index 50c3f5d6611f..ecf92a5d56bb 100644 --- a/drivers/net/ethernet/hisilicon/hip04_eth.c +++ b/drivers/net/ethernet/hisilicon/hip04_eth.c @@ -960,8 +960,8 @@ static int hip04_mac_probe(struct platform_device *pd...
11260c3d608b59231f4c228147a795ab21a10b33
Analyze and fix the following issue in the Linux kernel code: smb: client: fix dfs link mount against w2k8
Problem Details: Customer reported that they couldn't mount their DFS link that was seen by the client as a DFS interlink -- special form of DFS link where its single target may point to a different DFS namespace -- and it turned out that it was just a regular DFS link where its referral header flags missed the Storage...
```diff diff --git a/fs/smb/client/dfs.c b/fs/smb/client/dfs.c index df3fd3b720da..ee772c3d9f00 100644 --- a/fs/smb/client/dfs.c +++ b/fs/smb/client/dfs.c @@ -177,8 +177,12 @@ static int __dfs_mount_share(struct cifs_mount_ctx *mnt_ctx) struct dfs_cache_tgt_list tl = DFS_CACHE_TGT_LIST_INIT(tl); rc = dfs_get_re...
9011e49d54dcc7653ebb8a1e05b5badb5ecfa9f9
Analyze and fix the following issue in the Linux kernel code: modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules
Problem Details: It has recently come to my attention that nvidia is circumventing the protection added in 262e6ae7081d ("modules: inherit TAINT_PROPRIETARY_MODULE") by importing exports from their proprietary modules into an allegedly GPL licensed module and then rexporting them. Given that symbol_get was only ever i...
```diff diff --git a/kernel/module/main.c b/kernel/module/main.c index 59b1d067e528..c395af9eced1 100644 --- a/kernel/module/main.c +++ b/kernel/module/main.c @@ -1295,12 +1295,20 @@ void *__symbol_get(const char *symbol) }; preempt_disable(); - if (!find_symbol(&fsa) || strong_try_module_get(fsa.owner)) { - pre...
28e671114fb0f28f334fac8d0a6b9c395c7b0498
Analyze and fix the following issue in the Linux kernel code: drm/i915/guc/slpc: Restore efficient freq earlier
Problem Details: This should be done before the soft min/max frequencies are restored. When we disable the "Ignore efficient frequency" flag, GuC does not actually bring the requested freq down to RPn. Specifically, this scenario- - ignore efficient freq set to true - reduce min to RPn (from efficient) - suspend - re...
```diff diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c index ee9f83af7cf6..477df260ae3a 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_slpc.c @@ -470,12 +470,19 @@ int intel_guc_slpc_set_ignore_eff_freq(struct i...
79e8328e5acbe691bbde029a52c89d70dcbc22f3
Analyze and fix the following issue in the Linux kernel code: word-at-a-time: use the same return type for has_zero regardless of endianness
Problem Details: Compiling big-endian targets with Clang produces the diagnostic: fs/namei.c:2173:13: warning: use of bitwise '|' with boolean operands [-Wbitwise-instead-of-logical] } while (!(has_zero(a, &adata, &constants) | has_zero(b, &bdata, &constants))); ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~...
```diff diff --git a/arch/powerpc/include/asm/word-at-a-time.h b/arch/powerpc/include/asm/word-at-a-time.h index 46c31fb8748d..30a12d208687 100644 --- a/arch/powerpc/include/asm/word-at-a-time.h +++ b/arch/powerpc/include/asm/word-at-a-time.h @@ -34,7 +34,7 @@ static inline long find_zero(unsigned long mask) return l...
7ee027abd4533d53438ccafdd3ba7a68a16aae8d
Analyze and fix the following issue in the Linux kernel code: wifi: ath12k: Use pdev_id rather than mac_id to get pdev
Problem Details: We are seeing kernel crash in below test scenario: 1. make DUT connect to an WPA3 encrypted 11ax AP in Ch44 HE80 2. use "wpa_cli -i <inf> disconnect" to disconnect 3. wait for DUT to automatically reconnect Kernel crashes while waiting, below shows the crash stack: [ 755.120868] BUG: kernel NULL p...
```diff diff --git a/drivers/net/wireless/ath/ath12k/dp_rx.c b/drivers/net/wireless/ath/ath12k/dp_rx.c index ffd9a2018610..67f8c140840f 100644 --- a/drivers/net/wireless/ath/ath12k/dp_rx.c +++ b/drivers/net/wireless/ath/ath12k/dp_rx.c @@ -2539,7 +2539,7 @@ static void ath12k_dp_rx_process_received_packets(struct ath12k...
1e9b1363e2de1552ee4e3d74ac8bb43a194f1cb4
Analyze and fix the following issue in the Linux kernel code: wifi: ath12k: avoid array overflow of hw mode for preferred_hw_mode
Problem Details: Currently ath12k define WMI_HOST_HW_MODE_DBS_OR_SBS=5 as max hw mode for enum wmi_host_hw_mode_config_type, it is also same for the array ath12k_hw_mode_pri_map. When tested with new version firmware/board data which support new hw mode eMLSR mode with hw mode value 8, it leads overflow usage for arra...
```diff diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c index 6512267ae4ca..e6033ab15825 100644 --- a/drivers/net/wireless/ath/ath12k/wmi.c +++ b/drivers/net/wireless/ath/ath12k/wmi.c @@ -3705,6 +3705,10 @@ static int ath12k_wmi_hw_mode_caps(struct ath12k_base *soc, for (i =...
603cf6c2fcdcbc38f1daa316794e7268852677a7
Analyze and fix the following issue in the Linux kernel code: wifi: ath12k: fix memcpy array overflow in ath12k_peer_assoc_h_he()
Problem Details: Two memory copies in this function copy from a short array into a longer one, using the wrong size, which leads to an out-of-bounds access: include/linux/fortify-string.h:592:4: error: call to '__read_overflow2_field' declared with 'warning' attribute: detected read beyond size of field (2nd parameter...
```diff diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c index af46b63bb15b..d165b24094ad 100644 --- a/drivers/net/wireless/ath/ath12k/mac.c +++ b/drivers/net/wireless/ath/ath12k/mac.c @@ -1637,9 +1637,9 @@ static void ath12k_peer_assoc_h_he(struct ath12k *ar, arg->peer_nss =...
8ad314da54c6dd223a6b6cc85019160aa842f659
Analyze and fix the following issue in the Linux kernel code: wifi: ath12k: Fix a NULL pointer dereference in ath12k_mac_op_hw_scan()
Problem Details: In ath12k_mac_op_hw_scan(), the return value of kzalloc() is directly used in memcpy(), which may lead to a NULL pointer dereference on failure of kzalloc(). Fix this bug by adding a check of arg.extraie.ptr. Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0-03427-QCAHMTSWPL_V1.0_V2.0_SILICONZ-1.15378.4 Sig...
```diff diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c index 1bb9802ef569..af46b63bb15b 100644 --- a/drivers/net/wireless/ath/ath12k/mac.c +++ b/drivers/net/wireless/ath/ath12k/mac.c @@ -2755,9 +2755,12 @@ static int ath12k_mac_op_hw_scan(struct ieee80211_hw *hw, arg.scan_i...
13329d0cb7212b058bd8451a99d215a8f97645ea
Analyze and fix the following issue in the Linux kernel code: wifi: ath11k: Remove cal_done check during probe
Problem Details: In some race conditions, calibration done QMI message is received even before host wait starts for calibration to be done. Due to this, resetting firmware was not performed after calibration. Hence, remove cal_done check in ath11k_qmi_fwreset_from_cold_boot() as this is called only from probe. Tested...
```diff diff --git a/drivers/net/wireless/ath/ath11k/qmi.c b/drivers/net/wireless/ath/ath11k/qmi.c index c4eab5d7f5c5..617abb441882 100644 --- a/drivers/net/wireless/ath/ath11k/qmi.c +++ b/drivers/net/wireless/ath/ath11k/qmi.c @@ -2844,7 +2844,7 @@ int ath11k_qmi_fwreset_from_cold_boot(struct ath11k_base *ab) { int ...
c98c18270be115678f4295b10a5af5dcc9c4efa0
Analyze and fix the following issue in the Linux kernel code: sched, cgroup: Restore meaning to hierarchical_quota
Problem Details: In cgroupv2 cfs_b->hierarchical_quota is set to -1 for all task groups due to the previous fix simply taking the min. It should reflect a limit imposed at that level or by an ancestor. Even though cgroupv2 does not require child quota to be less than or equal to that of its ancestors the task group wi...
```diff diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 83e36547af17..3af25caf6343 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -9953,7 +9953,7 @@ void __init sched_init(void) ptr += nr_cpu_ids * sizeof(void **); root_task_group.shares = ROOT_TASK_GROUP_LOAD; - init_cfs_bandwidth(...
98dfdd9ee93995a408192dbbf3dd219ba23e3738
Analyze and fix the following issue in the Linux kernel code: sched/psi: Select KERNFS as needed
Problem Details: Users of KERNFS should select it to enforce its being built, so do this to prevent a build error. In file included from ../kernel/sched/build_utility.c:97: ../kernel/sched/psi.c: In function 'psi_trigger_poll': ../kernel/sched/psi.c:1479:17: error: implicit declaration of function 'kernfs_generic_poll...
```diff diff --git a/init/Kconfig b/init/Kconfig index f7f65af4ee12..5e7d4885d1bf 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -629,6 +629,7 @@ config TASK_IO_ACCOUNTING config PSI bool "Pressure stall information tracking" + select KERNFS help Collect metrics that indicate how overcommitted the CPU, memo...
7f96539437eafec8fd062fb13f31cf53251ea18d
Analyze and fix the following issue in the Linux kernel code: powerpc/kexec: fix minor typo
Problem Details: Function name in the descriptor was not correct. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202307251721.bUGcsCeQ-lkp@intel.com/ Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://ms...
```diff diff --git a/arch/powerpc/kexec/file_load_64.c b/arch/powerpc/kexec/file_load_64.c index 7e69be55451a..17534daa3c48 100644 --- a/arch/powerpc/kexec/file_load_64.c +++ b/arch/powerpc/kexec/file_load_64.c @@ -933,9 +933,9 @@ out: } /** - * get_cpu_node_size - Compute the size of a CPU node in the FDT. - * ...
bbfa509d632946578d4f19aa2cedf1ca2f34565d
Analyze and fix the following issue in the Linux kernel code: powerpc/ep8248e: Mark driver as non removable
Problem Details: Instead of resorting to BUG() ensure that the driver isn't unbound by suppressing its bind and unbind sysfs attributes. As the driver is built-in there is no way to remove a device once bound. As a nice side effect this allows to drop the remove function. Signed-off-by: Uwe Kleine-König <u.kleine-koe...
```diff diff --git a/arch/powerpc/platforms/82xx/ep8248e.c b/arch/powerpc/platforms/82xx/ep8248e.c index 16808536f788..4bfa1a95e155 100644 --- a/arch/powerpc/platforms/82xx/ep8248e.c +++ b/arch/powerpc/platforms/82xx/ep8248e.c @@ -141,12 +141,6 @@ err_free_bus: return ret; } -static int ep8248e_mdio_remove(struct ...
fc6732a8556c1099b89f4777a96bd6a1ae5a4378
Analyze and fix the following issue in the Linux kernel code: selftests/powerpc/ptrace: Fix typo in pid_max search error
Problem Details: pid_max_addr() searches for the 'pid_max' symbol in /proc/kallsyms, and prints an error if it cannot find it. The error message has a typo, calling it pix_max. Signed-off-by: Benjamin Gray <bgray@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/2023072500584...
```diff diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-perf-hwbreak.c b/tools/testing/selftests/powerpc/ptrace/ptrace-perf-hwbreak.c index 16c653600124..d8a9e95fc03d 100644 --- a/tools/testing/selftests/powerpc/ptrace/ptrace-perf-hwbreak.c +++ b/tools/testing/selftests/powerpc/ptrace/ptrace-perf-hwbreak.c @...
e43c0a0c3c2870e1ee29519dc249471adf19ab5f
Analyze and fix the following issue in the Linux kernel code: powerpc/64s/radix: combine final TLB flush and lazy tlb mm shootdown IPIs
Problem Details: This performs lazy tlb mm shootdown when doing the exit TLB flush when all mm users go away and user mappings are removed, which avoids having to do the lazy tlb mm shootdown IPIs on the final mmput when all kernel references disappear. powerpc/64s uses a broadcast TLBIE for the exit TLB flush if remo...
```diff diff --git a/arch/powerpc/mm/book3s64/radix_tlb.c b/arch/powerpc/mm/book3s64/radix_tlb.c index 4e72d8007f88..dd127087fee8 100644 --- a/arch/powerpc/mm/book3s64/radix_tlb.c +++ b/arch/powerpc/mm/book3s64/radix_tlb.c @@ -1313,7 +1313,35 @@ void radix__tlb_flush(struct mmu_gather *tlb) * See the comment for rad...
9d6e1c21e1be4643628ee343e0b8d79828485ba2
Analyze and fix the following issue in the Linux kernel code: powerpc/crypto: fix missing skcipher dependency for aes-gcm-p10
Problem Details: My stripped down configuration fails to build with: ERROR: modpost: "skcipher_walk_aead_encrypt" [arch/powerpc/crypto/aes-gcm-p10-crypto.ko] undefined! ERROR: modpost: "skcipher_walk_done" [arch/powerpc/crypto/aes-gcm-p10-crypto.ko] undefined! ERROR: modpost: "skcipher_walk_aead_decrypt" [arch/p...
```diff diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig index ad1872518992..81ae015861c0 100644 --- a/arch/powerpc/crypto/Kconfig +++ b/arch/powerpc/crypto/Kconfig @@ -100,6 +100,7 @@ config CRYPTO_AES_GCM_P10 select CRYPTO_LIB_AES select CRYPTO_ALGAPI select CRYPTO_AEAD + select CRYPTO_SKC...
72c8caf904aed2caed5d6e75233294b6159ddb5d
Analyze and fix the following issue in the Linux kernel code: wifi: ath11k: fix band selection for ppdu received in channel 177 of 5 GHz
Problem Details: 5 GHz band channel 177 support was added with the commit e5e94d10c856 ("wifi: ath11k: add channel 177 into 5 GHz channel list"). However, during processing for the received ppdu in ath11k_dp_rx_h_ppdu(), channel number is checked only till 173. This leads to driver code checking for channel and then fe...
```diff diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c index 5c76664ba0dd..1e488eed282b 100644 --- a/drivers/net/wireless/ath/ath11k/dp_rx.c +++ b/drivers/net/wireless/ath/ath11k/dp_rx.c @@ -2408,7 +2408,7 @@ static void ath11k_dp_rx_h_ppdu(struct ath11k *ar, struct hal_r...
34093c9fa05df24558d1e2c5d32f7f93b2c97ee9
Analyze and fix the following issue in the Linux kernel code: net: Remove duplicated include in mac.c
Problem Details: ./drivers/net/ethernet/freescale/fman/mac.c: linux/of_platform.h is included more than once. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=6039 Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Reviewed-by: Simon Horman <horms@kernel.org> S...
```diff diff --git a/drivers/net/ethernet/freescale/fman/mac.c b/drivers/net/ethernet/freescale/fman/mac.c index b6c7c4c0b367..9767586b4eb3 100644 --- a/drivers/net/ethernet/freescale/fman/mac.c +++ b/drivers/net/ethernet/freescale/fman/mac.c @@ -12,7 +12,6 @@ #include <linux/of_net.h> #include <linux/of_mdio.h> #in...
16e455a465fca91907af0108f3d013150386df30
Analyze and fix the following issue in the Linux kernel code: wifi: brcmfmac: Fix field-spanning write in brcmf_scan_params_v2_to_v1()
Problem Details: Using brcmfmac with 6.5-rc3 on a brcmfmac43241b4-sdio triggers a backtrace caused by the following field-spanning warning: memcpy: detected field-spanning write (size 120) of single field "&params_le->channel_list[0]" at drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c:1072 (size 2) Th...
```diff diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h index 792adaf880b4..bece26741d3a 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types...
288c63d5cb4667a51a04668b3e2bb0ea499bc5f4
Analyze and fix the following issue in the Linux kernel code: wifi: mwifiex: fix error recovery in PCIE buffer descriptor management
Problem Details: Add missing 'kfree_skb()' in 'mwifiex_init_rxq_ring()' and never do 'kfree(card->rxbd_ring_vbase)' because this area is DMAed and should be released with 'dma_free_coherent()'. The latter is performed in 'mwifiex_pcie_delete_rxbd_ring()', which is now called to recover from possible errors in 'mwifiex_...
```diff diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c index 9a698a16a8f3..6697132ecc97 100644 --- a/drivers/net/wireless/marvell/mwifiex/pcie.c +++ b/drivers/net/wireless/marvell/mwifiex/pcie.c @@ -189,6 +189,8 @@ static int mwifiex_pcie_probe_of(struct device *d...
d6b484b5cb2a7d509b36a220911509ddd8b777c4
Analyze and fix the following issue in the Linux kernel code: wifi: mt76: Replace strlcpy() with strscpy()
Problem Details: strlcpy() reads the entire source buffer first. This read may exceed the destination size limit. This is both inefficient and can lead to linear read overflows if a source string is not NUL-terminated [1]. In an effort to remove strlcpy() completely [2], replace strlcpy() here with strscpy(). Direct r...
```diff diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615_trace.h b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615_trace.h index d3eb49d83b98..9be5a58a4e6d 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mt7615_trace.h +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mt7615_trace.h @@ -14,7 +14,7 @@...
0756384fb1bd38adb2ebcfd1307422f433a1d772
Analyze and fix the following issue in the Linux kernel code: vxlan: Fix nexthop hash size
Problem Details: The nexthop code expects a 31 bit hash, such as what is returned by fib_multipath_hash() and rt6_multipath_hash(). Passing the 32 bit hash returned by skb_get_hash() can lead to problems related to the fact that 'int hash' is a negative number when the MSB is set. In the case of hash threshold nexthop...
```diff diff --git a/include/net/vxlan.h b/include/net/vxlan.h index 1648240c9668..6a9f8a5f387c 100644 --- a/include/net/vxlan.h +++ b/include/net/vxlan.h @@ -556,12 +556,12 @@ static inline void vxlan_flag_attr_error(int attrtype, } static inline bool vxlan_fdb_nh_path_select(struct nexthop *nh, - int hash...
f15de4f6245b73f28887a457110fa9c1b83cd890
Analyze and fix the following issue in the Linux kernel code: drm/msm/dpu: drop enum dpu_core_perf_data_bus_id
Problem Details: Drop the leftover of bus-client -> interconnect conversion, the enum dpu_core_perf_data_bus_id. Fixes: cb88482e2570 ("drm/msm/dpu: clean up references of DPU custom bus scaling") Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com> Signed-off-by:...
```diff diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h index e3795995e145..29bb8ee2bc26 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h @@ -14,19 +14,6 @@ #define DPU_PERF_DEFAULT_MAX_CORE_CLK_R...
c1e10d5dc7a1be8d4eba8560540e20bd03c2be01
Analyze and fix the following issue in the Linux kernel code: net: ti: icssg-prueth: Add ICSSG Stats
Problem Details: Add icssg_stats.c to help dump, icssg related driver statistics. ICSSG has hardware registers for providing statistics like total rx bytes, total tx bytes, etc. These registers are of 32 bits and hence in case of 1G link, they overflows in around 32 seconds. The behaviour of these registers is such th...
```diff diff --git a/drivers/net/ethernet/ti/Makefile b/drivers/net/ethernet/ti/Makefile index efb050cbb4a8..03d9b2b36b5f 100644 --- a/drivers/net/ethernet/ti/Makefile +++ b/drivers/net/ethernet/ti/Makefile @@ -36,3 +36,4 @@ icssg-prueth-y := k3-cppi-desc-pool.o \ icssg/icssg_queues.o \ icssg/icssg_config.o \...