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eb2feb68cb7d404288493c41480843bc9f404789
Analyze and fix the following issue in the Linux kernel code: perf vendor events s390: Remove UTF-8 characters from JSON file
Problem Details: Commit 7f76b31130680fb3 ("perf list: Add IBM z16 event description for s390") contains the verbal description for z16 extended counter set. However some entries of the public description contain UTF-8 characters which breaks the build on some distros. Fix this and remove the UTF-8 characters. Fixes:...
```diff diff --git a/tools/perf/pmu-events/arch/s390/cf_z16/extended.json b/tools/perf/pmu-events/arch/s390/cf_z16/extended.json index c306190fc06f..c2b10ec1c6e0 100644 --- a/tools/perf/pmu-events/arch/s390/cf_z16/extended.json +++ b/tools/perf/pmu-events/arch/s390/cf_z16/extended.json @@ -95,28 +95,28 @@ "EventCode...
6094c7744bb0563e833e81d8df8513f9a4e7a257
Analyze and fix the following issue in the Linux kernel code: perf hist: Improve srcfile sort key performance (really)
Problem Details: The earlier commit f0cdde28fecc0d7f ("perf hist: Improve srcfile sort key performance") updated the srcfile logic but missed to change the ->cmp() callback which is called for every sample. It should use the same logic like in the srcline to speed up the processing because it'd return the same informa...
```diff diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c index e11e68ecf0a2..2b5cc8e4aa6e 100644 --- a/tools/perf/util/sort.c +++ b/tools/perf/util/sort.c @@ -657,12 +657,7 @@ static char *hist_entry__get_srcfile(struct hist_entry *e) static int64_t sort__srcfile_cmp(struct hist_entry *left, struct hist_e...
30df88a80f32ccca5c5cdcf2710d1fb2de5e314d
Analyze and fix the following issue in the Linux kernel code: perf test: Fix wrong size expectation for 'Setup struct perf_event_attr'
Problem Details: The test case "perf test 'Setup struct perf_event_attr'" is failing. On s390 this output is observed: # ./perf test -Fvvvv 17 17: Setup struct perf_event_attr : --- start --- running './tests/attr/test-stat-C0' Using CPUID IBM,8561,703,T01,3.6,002f ..... Even...
```diff diff --git a/tools/perf/tests/attr/base-record b/tools/perf/tests/attr/base-record index 3ef07a12aa14..27c21271a16c 100644 --- a/tools/perf/tests/attr/base-record +++ b/tools/perf/tests/attr/base-record @@ -5,7 +5,7 @@ group_fd=-1 flags=0|8 cpu=* type=0|1 -size=128 +size=136 config=0 sample_period=* sampl...
62a4276877d21fe8f42085b25db8351de9406643
Analyze and fix the following issue in the Linux kernel code: ARM: tegra: asus-tf101: Fix accelerometer mount matrix
Problem Details: Accelerometer mount matrix used in tf101 downstream is inverted. This new matrix was generated on actual device using calibration script, like on other transformers. Tested-by: Robert Eckelmann <longnoserob@gmail.com> Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Signed-off-by: Thierry Reding <...
```diff diff --git a/arch/arm/boot/dts/tegra20-asus-tf101.dts b/arch/arm/boot/dts/tegra20-asus-tf101.dts index 3f1da75a2736..c2a9c3fb5b33 100644 --- a/arch/arm/boot/dts/tegra20-asus-tf101.dts +++ b/arch/arm/boot/dts/tegra20-asus-tf101.dts @@ -577,9 +577,9 @@ vdd-supply = <&vdd_1v8_sys>; vddio-supply = <&vdd...
55879dad0f3ae8468444b42f785ad79eac05fe5b
Analyze and fix the following issue in the Linux kernel code: gpu: host1x: Fix memory leak of device names
Problem Details: The device names allocated by dev_set_name() need be freed before module unloading, but they can not be freed because the kobject's refcount which was set in device_initialize() has not be decreased to 0. As comment of device_add() says, if it fails, use only put_device() drop the refcount, then the n...
```diff diff --git a/drivers/gpu/host1x/context.c b/drivers/gpu/host1x/context.c index 5ec18315ff9f..9ad89d22c0ca 100644 --- a/drivers/gpu/host1x/context.c +++ b/drivers/gpu/host1x/context.c @@ -13,6 +13,11 @@ #include "context.h" #include "dev.h" +static void host1x_memory_context_release(struct device *dev) +{ + ...
8466ff24a37a9a18fb935e90dda64f049131ae28
Analyze and fix the following issue in the Linux kernel code: gpu: host1x: Fix potential double free if IOMMU is disabled
Problem Details: If context device has no IOMMU, the 'cdl->devs' is freed in error path, but host1x_memory_context_list_init() doesn't return an error code, so the module can be loaded successfully, when it's unloading, the host1x_memory_context_list_free() is called in host1x_remove(), it will cause double free. Set t...
```diff diff --git a/drivers/gpu/host1x/context.c b/drivers/gpu/host1x/context.c index 8beedcf080ab..5ec18315ff9f 100644 --- a/drivers/gpu/host1x/context.c +++ b/drivers/gpu/host1x/context.c @@ -83,6 +83,7 @@ del_devices: device_del(&cdl->devs[i].dev); kfree(cdl->devs); + cdl->devs = NULL; cdl->len = 0; re...
6ce7995a43febe693d4894033c6e29314970646a
Analyze and fix the following issue in the Linux kernel code: ipmi:ssif: Add send_retries increment
Problem Details: A recent change removed an increment of send_retries, re-add it. Fixes: 95767ed78a18 ipmi:ssif: resend_msg() cannot fail Reported-by: Pavel Machek <pavel@denx.de> Cc: stable@vger.kernel.org Signed-off-by: Corey Minyard <minyard@acm.org>
```diff diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c index 1a85b400e929..e4f6ecc12ed7 100644 --- a/drivers/char/ipmi/ipmi_ssif.c +++ b/drivers/char/ipmi/ipmi_ssif.c @@ -557,8 +557,10 @@ static void retry_timeout(struct timer_list *t) if (waiting) start_get(ssif_info); - if (resend) ...
13a0d1ae7ee6b438f5537711a8c60cba00554943
Analyze and fix the following issue in the Linux kernel code: iommufd: Do not corrupt the pfn list when doing batch carry
Problem Details: If batch->end is 0 then setting npfns[0] before computing the new value of pfns will fail to adjust the pfn and result in various page accounting corruptions. It should be ordered after. This seems to result in various kinds of page meta-data corruption related failures: WARNING: CPU: 1 PID: 527 at...
```diff diff --git a/drivers/iommu/iommufd/pages.c b/drivers/iommu/iommufd/pages.c index b11aace83654..3c47846cc5ef 100644 --- a/drivers/iommu/iommufd/pages.c +++ b/drivers/iommu/iommufd/pages.c @@ -294,9 +294,9 @@ static void batch_clear_carry(struct pfn_batch *batch, unsigned int keep_pfns) batch->npfns[batch->en...
727c28c1cef2bc013d2c8bb6c50e410a3882a04e
Analyze and fix the following issue in the Linux kernel code: iommufd: Fix unpinning of pages when an access is present
Problem Details: syzkaller found that the calculation of batch_last_index should use 'start_index' since at input to this function the batch is either empty or it has already been adjusted to cross any accesses so it will start at the point we are unmapping from. Getting this wrong causes the unmap to run over the end...
```diff diff --git a/drivers/iommu/iommufd/pages.c b/drivers/iommu/iommufd/pages.c index 400ec7c91ed7..b11aace83654 100644 --- a/drivers/iommu/iommufd/pages.c +++ b/drivers/iommu/iommufd/pages.c @@ -1207,13 +1207,21 @@ iopt_area_unpin_domain(struct pfn_batch *batch, struct iopt_area *area, unsigned long start = ...
e4395701330fc4aee530905039516fe770b81417
Analyze and fix the following issue in the Linux kernel code: iommufd: Check for uptr overflow
Problem Details: syzkaller found that setting up a map with a user VA that wraps past zero can trigger WARN_ONs, particularly from pin_user_pages weirdly returning 0 due to invalid arguments. Prevent creating a pages with a uptr and size that would math overflow. WARNING: CPU: 0 PID: 518 at drivers/iommu/iommufd/pa...
```diff diff --git a/drivers/iommu/iommufd/pages.c b/drivers/iommu/iommufd/pages.c index f8d92c9bb65b..400ec7c91ed7 100644 --- a/drivers/iommu/iommufd/pages.c +++ b/drivers/iommu/iommufd/pages.c @@ -1142,6 +1142,7 @@ struct iopt_pages *iopt_alloc_pages(void __user *uptr, unsigned long length, bool writable) {...
b277fc793daf258877b4c0744b52f69d6e6ba22e
Analyze and fix the following issue in the Linux kernel code: powerpc/papr_scm: Update the NUMA distance table for the target node
Problem Details: Platform device helper routines won't update the NUMA distance table while creating a platform device, even if the device is present on a NUMA node that doesn't have memory or CPU. This is especially true for pmem devices. If the target node of the pmem device is not online, we find the nearest online ...
```diff diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index b44ce71917d7..16cfe56be05b 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -366,6 +366,7 @@ void update_numa_distance(struct device_node *node) WARN(numa_distance_table[nid][nid] == -1, "NUMA distance details for nod...
87c614175bbf28d3fd076dc2d166bac759e41427
Analyze and fix the following issue in the Linux kernel code: spi: spi-imx: fix MX51_ECSPI_* macros when cs > 3
Problem Details: When using gpio based chip select the cs value can go outside the range 0 – 3. The various MX51_ECSPI_* macros did not take this into consideration resulting in possible corruption of the configuration. For example for any cs value over 3 the SCLKPHA bits would not be set and other values in the regis...
```diff diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 1f2c7ad65ec8..24390c702c60 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -252,6 +252,18 @@ static bool spi_imx_can_dma(struct spi_controller *controller, struct spi_device return true; } +/* + * Note the number of natively...
61f49171a43ab1f80c73c5c88c508770c461e0f2
Analyze and fix the following issue in the Linux kernel code: spi: qup: Don't skip cleanup in remove's error path
Problem Details: Returning early in a platform driver's remove callback is wrong. In this case the dma resources are not released in the error path. this is never retried later and so this is a permanent leak. To fix this, only skip hardware disabling if waking the device fails. Fixes: 64ff247a978f ("spi: Add Qualcomm...
```diff diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c index 71fc65e094e7..9efa56e2ee9d 100644 --- a/drivers/spi/spi-qup.c +++ b/drivers/spi/spi-qup.c @@ -1276,18 +1276,22 @@ static int spi_qup_remove(struct platform_device *pdev) struct spi_qup *controller = spi_master_get_devdata(master); int ret; -...
451941ac1ee2be125ac5029593a64b04badaa314
Analyze and fix the following issue in the Linux kernel code: regmap: Fix double unlock in the maple cache
Problem Details: Doing the dance to drop the maple tree's internal spinlock means we need multiple exit paths in our error handling. Reported-by: Liam R. Howlett <Liam.Howlett@Oracle.com> Signed-off-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20230403-regmap-maple-unlock-v1-1-89998991b16c@kerne...
```diff diff --git a/drivers/base/regmap/regcache-maple.c b/drivers/base/regmap/regcache-maple.c index 497cc708d277..20fb7228fc6b 100644 --- a/drivers/base/regmap/regcache-maple.c +++ b/drivers/base/regmap/regcache-maple.c @@ -137,7 +137,7 @@ static int regcache_maple_drop(struct regmap *map, unsigned int min, GF...
1f7b5d52be130e16fda60be446b30136698738c6
Analyze and fix the following issue in the Linux kernel code: ASoC: SOF: Intel: hda: Add support for DSPless mode
Problem Details: Via the SOF_DBG_DSPLESS_MODE sof_debug flag the SOF stack can be asked to not use the DSP for audio. The use of DSPless mode is governed by the sdev->dspless_mode_selected flag which is only going to be set if the user sets sof_debug=0x8000 and the platform advertises that the DSPless mode is supporte...
```diff diff --git a/sound/soc/sof/intel/hda-dai-ops.c b/sound/soc/sof/intel/hda-dai-ops.c index de48f13259f1..4b39cecacd68 100644 --- a/sound/soc/sof/intel/hda-dai-ops.c +++ b/sound/soc/sof/intel/hda-dai-ops.c @@ -319,13 +319,44 @@ static const struct hda_dai_widget_dma_ops hda_ipc3_dma_ops = { .post_trigger = hda_i...
28d40e7adfd4108c11c9397c6fe9d9f80fed31e9
Analyze and fix the following issue in the Linux kernel code: ASoC: SOF: Add support for DSPless mode
Problem Details: Via the SOF_DBG_DSPLESS_MODE sof_debug flag the SOF stack can be asked to not use the DSP for audio. The core's support for DSPless mode is only going to be enabled if the platform reports that it can be used without DSP. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Pie...
```diff diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c index 06bcae631612..9a9d82220fd0 100644 --- a/sound/soc/sof/core.c +++ b/sound/soc/sof/core.c @@ -208,6 +208,11 @@ static int sof_probe_continue(struct snd_sof_dev *sdev) /* set up platform component driver */ snd_sof_new_platform_drv(sdev); + if (s...
59611370f92923089ceb284072d01445164a0191
Analyze and fix the following issue in the Linux kernel code: ASoC: SOF: Add flag and state which will be used for DSP-less mode
Problem Details: The DSPless mode of the ASoC/SOF driver can be used for hardware verification and debug on platforms with HDaudio codecs. The DSP mode is still needed on existing platforms for SSP, DMIC, SoundWire interfaces managed by the GP-DMA. This mode is also helpful to compare the legacy HDaudio driver with th...
```diff diff --git a/include/sound/sof.h b/include/sound/sof.h index 266e66318f9c..d3c41f87ac31 100644 --- a/include/sound/sof.h +++ b/include/sound/sof.h @@ -21,6 +21,7 @@ struct snd_sof_dev; /** * enum sof_fw_state - DSP firmware state definitions * @SOF_FW_BOOT_NOT_STARTED: firmware boot is not yet started + * ...
09255c7ed8ca1f1ed99357b845d2f63fe2ef3e1e
Analyze and fix the following issue in the Linux kernel code: ASoC: SOF: Intel: hda-stream: Do not dereference hstream until it is safe
Problem Details: Only access hext_stream->hstream after it has been checked for NULL pointer Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Rander Wan...
```diff diff --git a/sound/soc/sof/intel/hda-stream.c b/sound/soc/sof/intel/hda-stream.c index c37ef581637f..50e92996f928 100644 --- a/sound/soc/sof/intel/hda-stream.c +++ b/sound/soc/sof/intel/hda-stream.c @@ -485,9 +485,8 @@ int hda_dsp_stream_hw_params(struct snd_sof_dev *sdev, { const struct sof_intel_dsp_desc *...
92ba67347a3a6caa1843c81b0b48c48ccadf6915
Analyze and fix the following issue in the Linux kernel code: video/aperture: Fix typos in comments
Problem Details: EFI FB, VESA FB or VGA FB etc belong to firmware based framebuffer driver. Signed-off-by: Sui Jingfeng <suijingfeng@loongson.cn> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/2...
```diff diff --git a/drivers/video/aperture.c b/drivers/video/aperture.c index 41e77de1ea82..b009468ffdff 100644 --- a/drivers/video/aperture.c +++ b/drivers/video/aperture.c @@ -20,7 +20,7 @@ * driver can be active at any given time. Many systems load a generic * graphics drivers, such as EFI-GOP or VESA, early du...
c6b486fb33680ad5a3a6390ce693c835caaae3f7
Analyze and fix the following issue in the Linux kernel code: net: ethernet: ti: am65-cpsw: Fix mdio cleanup in probe
Problem Details: In the am65_cpsw_nuss_probe() function's cleanup path, the call to of_platform_device_destroy() for the common->mdio_dev device is invoked unconditionally. It is possible that either the MDIO node is not present in the device-tree, or the MDIO node is disabled in the device-tree. In both these cases, t...
```diff diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c index 4e3861c47708..bcea87b7151c 100644 --- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c +++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c @@ -2926,7 +2926,8 @@ err_free_phylink: am65_cpsw_nuss_phylink_cleanup(common);...
fc187a46a8e682f0f1167b230792b88de01ceaa0
Analyze and fix the following issue in the Linux kernel code: soc: renesas: renesas-soc: Release 'chipid' from ioremap()
Problem Details: Smatch reports: drivers/soc/renesas/renesas-soc.c:536 renesas_soc_init() warn: 'chipid' from ioremap() not released on lines: 475. If soc_dev_atrr allocation is failed, function renesas_soc_init() will return without releasing 'chipid' from ioremap(). Fix this by adding function iounmap(). Fixes: c...
```diff diff --git a/drivers/soc/renesas/renesas-soc.c b/drivers/soc/renesas/renesas-soc.c index 4ba893e45427..42af7c09f743 100644 --- a/drivers/soc/renesas/renesas-soc.c +++ b/drivers/soc/renesas/renesas-soc.c @@ -469,8 +469,11 @@ static int __init renesas_soc_init(void) } soc_dev_attr = kzalloc(sizeof(*soc_dev_...
a3046a618a284579d1189af8711765f553eed707
Analyze and fix the following issue in the Linux kernel code: um: Only disable SSE on clang to work around old GCC bugs
Problem Details: As part of the Rust support for UML, we disable SSE (and similar flags) to match the normal x86 builds. This both makes sense (we ideally want a similar configuration to x86), and works around a crash bug with SSE generation under Rust with LLVM. However, this breaks compiling stdlib.h under gcc < 11,...
```diff diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um index b70559b821df..2106a2bd152b 100644 --- a/arch/x86/Makefile.um +++ b/arch/x86/Makefile.um @@ -3,9 +3,14 @@ core-y += arch/x86/crypto/ # # Disable SSE and other FP/SIMD instructions to match normal x86 +# This is required to work around issues in o...
37513c56139b79dd43c1774513c28f8ab2b05224
Analyze and fix the following issue in the Linux kernel code: mtd: spi-nor: core: Update flash's current address mode when changing address mode
Problem Details: The bug was obswerved while reading code. There are not many users of addr_mode_nbytes. Anyway, we should update the flash's current address mode when changing the address mode, fix it. We don't care for now about the set_4byte_addr_mode(nor, false) from spi_nor_restore(), as it is used at driver remov...
```diff diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index 75a7839af034..b20c690a24d7 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -3136,6 +3136,7 @@ static int spi_nor_quad_enable(struct spi_nor *nor) static int spi_nor_init(struct spi_nor *nor) { + struct spi...
4e53ab0c292db99eff5dd65670bfdba79bbf338f
Analyze and fix the following issue in the Linux kernel code: mtd: spi-nor: Set the 4-Byte Address Mode method based on SFDP data
Problem Details: JESD216 SFDP defines in BFPT methods to enter and exit the 4-Byte Address Mode. The flash parameters and settings that are retrieved from SFDP have higher precedence than the static initialized ones, because they should be more accurate and less error prone than those initialized statically. Parse and ...
```diff diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index c65c0252863e..afb56b2cf8fe 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -2898,6 +2898,8 @@ static void spi_nor_init_fixup_flags(struct spi_nor *nor) */ static void spi_nor_late_init_params(struct spi_nor...
f0a499acb4b6f4c9a169ce35195b8021578ea14a
Analyze and fix the following issue in the Linux kernel code: mtd: spi-nor: macronix: Add support for mx25uw51245g with RWW
Problem Details: Describe this new part and provide the RWW flag for it. There is no public datasheet, but here are the sfdp tables plus base testing to show it works. $ cat /sys/bus/spi/devices/spi0.0/spi-nor/partname mx25uw51245g $ cat /sys/bus/spi/devices/spi0.0/spi-nor/jedec_id c2813a $ cat /sys/bus/spi/devices/s...
```diff diff --git a/drivers/mtd/spi-nor/macronix.c b/drivers/mtd/spi-nor/macronix.c index 6853ec9ae65d..7db1a1a6a1fb 100644 --- a/drivers/mtd/spi-nor/macronix.c +++ b/drivers/mtd/spi-nor/macronix.c @@ -82,6 +82,9 @@ static const struct flash_info macronix_nor_parts[] = { { "mx25u51245g", INFO(0xc2253a, 0, 64 * 1024,...
79a4db50192c196757e1dffa7f590fc7080ad746
Analyze and fix the following issue in the Linux kernel code: mtd: spi-nor: Delay the initialization of bank_size
Problem Details: Bank size is derived from the chip's size, which in spi_nor_init_default_params() can still be zero if the flash size is not specified at flash declaration. Let the flash size be updated by parsing SFDP and do the initialization of the bank size in spi_nor_late_init_params(). Flashes that don't define ...
```diff diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index c6a313d87c17..35295d98542f 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -2882,6 +2882,8 @@ static void spi_nor_late_init_params(struct spi_nor *nor) */ if (nor->flags & SNOR_F_HAS_LOCK && !nor->params-...
705c9ef831ce505f007d0af3fed2475764619533
Analyze and fix the following issue in the Linux kernel code: mtd: spi-nor: Fix a trivial typo
Problem Details: Fix a trivial typo in one of the core's comments. Fixes: 620df2497415 ("mtd: spi-nor: Introduce spi_nor_get_flash_info()") Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/r/20230331194726.840208-1-miquel.raynal@bootlin.com Signed-off-by: Tudor Ambarus <tudor.amba...
```diff diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index 9e6a0730cdb8..c6a313d87c17 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -3318,7 +3318,7 @@ static const struct flash_info *spi_nor_get_flash_info(struct spi_nor *nor, * JEDEC knows better, so overwrite...
abf04be0e7071f2bcd39bf97ba407e7d4439785e
Analyze and fix the following issue in the Linux kernel code: PCI/DOE: Fix memory leak with CONFIG_DEBUG_OBJECTS=y
Problem Details: After a pci_doe_task completes, its work_struct needs to be destroyed to avoid a memory leak with CONFIG_DEBUG_OBJECTS=y. Fixes: 9d24322e887b ("PCI/DOE: Add DOE mailbox support functions") Tested-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Lukas Wunner <lukas@wunner.de> Reviewed-by: Ira Weiny <...
```diff diff --git a/drivers/pci/doe.c b/drivers/pci/doe.c index c14ffdf23f87..e5e9b287b976 100644 --- a/drivers/pci/doe.c +++ b/drivers/pci/doe.c @@ -224,6 +224,7 @@ static void signal_task_complete(struct pci_doe_task *task, int rv) { task->rv = rv; task->complete(task); + destroy_work_on_stack(&task->work); } ...
92dc899c3b4927f3cfa23f55bf759171234b5802
Analyze and fix the following issue in the Linux kernel code: PCI/DOE: Silence WARN splat with CONFIG_DEBUG_OBJECTS=y
Problem Details: Gregory Price reports a WARN splat with CONFIG_DEBUG_OBJECTS=y upon CXL probing because pci_doe_submit_task() invokes INIT_WORK() instead of INIT_WORK_ONSTACK() for a work_struct that was allocated on the stack. All callers of pci_doe_submit_task() allocate the work_struct on the stack, so replace INI...
```diff diff --git a/drivers/pci/doe.c b/drivers/pci/doe.c index 6f097932ccbf..c14ffdf23f87 100644 --- a/drivers/pci/doe.c +++ b/drivers/pci/doe.c @@ -523,6 +523,8 @@ EXPORT_SYMBOL_GPL(pci_doe_supports_prot); * task->complete will be called when the state machine is done processing this * task. * + * @task must b...
4fe2c13d59d849be3b45371e3913ec5dc77fc0fb
Analyze and fix the following issue in the Linux kernel code: cxl/pci: Handle excessive CDAT length
Problem Details: If the length in the CDAT header is larger than the concatenation of the header and all table entries, then the CDAT exposed to user space contains trailing null bytes. Not every consumer may be able to handle that. Per Postel's robustness principle, "be liberal in what you accept" and silently reduc...
```diff diff --git a/drivers/cxl/core/pci.c b/drivers/cxl/core/pci.c index fb600dfbf5a6..523d5b9fd7fc 100644 --- a/drivers/cxl/core/pci.c +++ b/drivers/cxl/core/pci.c @@ -564,6 +564,9 @@ static int cxl_cdat_read_table(struct device *dev, } } while (entry_handle != CXL_DOE_TABLE_ACCESS_LAST_ENTRY); + /* Length in...
b56faef2312057db20479b240eb71bd2e51fb51c
Analyze and fix the following issue in the Linux kernel code: cxl/pci: Handle truncated CDAT entries
Problem Details: If truncated CDAT entries are received from a device, the concatenation of those entries constitutes a corrupt CDAT, yet is happily exposed to user space. Avoid by verifying response lengths and erroring out if truncation is detected. The last CDAT entry may still be truncated despite the checks intr...
```diff diff --git a/drivers/cxl/core/pci.c b/drivers/cxl/core/pci.c index 87da8c935185..fb600dfbf5a6 100644 --- a/drivers/cxl/core/pci.c +++ b/drivers/cxl/core/pci.c @@ -529,8 +529,8 @@ static int cxl_cdat_read_table(struct device *dev, do { DECLARE_CDAT_DOE_TASK(CDAT_DOE_REQ(entry_handle), t); + struct cdat_e...
34bafc747c54fb58c1908ec3116fa6137393e596
Analyze and fix the following issue in the Linux kernel code: cxl/pci: Handle truncated CDAT header
Problem Details: cxl_cdat_get_length() only checks whether the DOE response size is sufficient for the Table Access response header (1 dword), but not the succeeding CDAT header (1 dword length plus other fields). It thus returns whatever uninitialized memory happens to be on the stack if a truncated DOE response with...
```diff diff --git a/drivers/cxl/core/pci.c b/drivers/cxl/core/pci.c index 49a99a84b6aa..87da8c935185 100644 --- a/drivers/cxl/core/pci.c +++ b/drivers/cxl/core/pci.c @@ -510,7 +510,7 @@ static int cxl_cdat_get_length(struct device *dev, return rc; } wait_for_completion(&t.c); - if (t.task.rv < sizeof(__le32)) +...
605f7c73133341d4b762cbd9a22174cc22d4c38b
Analyze and fix the following issue in the Linux kernel code: drm/i915: Fix fast wake AUX sync len
Problem Details: Fast wake should use 8 SYNC pulses for the preamble and 10-16 SYNC pulses for the precharge. Reduce our fast wake SYNC count to match the maximum value. We also use the maximum precharge length for normal AUX transactions. Cc: Jouni Högander <jouni.hogander@intel.com> Signed-off-by: Ville Syrjälä <vil...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c index fbdca7bd725d..fa1fbac6f543 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_aux.c +++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c @@ -165,7 +165,7 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *...
f6a6a5a976288e4d0d94eb1c6c9e983e8e5cdb31
Analyze and fix the following issue in the Linux kernel code: bpf: Fix struct_meta lookup for bpf_obj_free_fields kfunc call
Problem Details: bpf_obj_drop_impl has a void return type. In check_kfunc_call, the "else if" which sets insn_aux->kptr_struct_meta for bpf_obj_drop_impl is surrounded by a larger if statement which checks btf_type_is_ptr. As a result: * The bpf_obj_drop_impl-specific code will never execute * The btf_struct_meta ...
```diff diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 92ae4e8ab87b..eaf9c5291cf0 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -10743,10 +10743,6 @@ static int check_kfunc_call(struct bpf_verifier_env *env, struct bpf_insn *insn, insn_aux->obj_new_size = ret_t->size; ins...
c3fbced9af885a6f217fd95509a613d6590916ce
Analyze and fix the following issue in the Linux kernel code: soc: bcm: brcmstb: biuctrl: fix of_iomap leak
Problem Details: Smatch reports: drivers/soc/bcm/brcmstb/biuctrl.c:291 setup_hifcpubiuctrl_regs() warn: 'cpubiuctrl_base' from of_iomap() not released on lines: 291. This is because in setup_hifcpubiuctrl_regs(), cpubiuctrl_base is not released when handle error, which may cause a leak. To fix this, iounmap is added ...
```diff diff --git a/drivers/soc/bcm/brcmstb/biuctrl.c b/drivers/soc/bcm/brcmstb/biuctrl.c index e1d7b4543248..364ddbe365c2 100644 --- a/drivers/soc/bcm/brcmstb/biuctrl.c +++ b/drivers/soc/bcm/brcmstb/biuctrl.c @@ -288,6 +288,10 @@ static int __init setup_hifcpubiuctrl_regs(struct device_node *np) if (BRCM_ID(family_...
2243acd50ac4026e93ac4f024109be6dbd7f9098
Analyze and fix the following issue in the Linux kernel code: driver core: class: remove struct class_interface * from callbacks
Problem Details: The add_dev and remove_dev callbacks in struct class_interface currently pass in a pointer back to the class_interface structure that is calling them, but none of the callback implementations actually use this pointer as it is pointless (the structure is known, the driver passed it in in the first plac...
```diff diff --git a/drivers/base/class.c b/drivers/base/class.c index ad8b9f163fd2..ac1808d1a2e8 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -486,7 +486,7 @@ int class_interface_register(struct class_interface *class_intf) if (class_intf->add_dev) { class_dev_iter_init(&iter, parent, NULL, NUL...
4dd472bdafcb660bea17bc63a97d06e24fcb36ed
Analyze and fix the following issue in the Linux kernel code: soc: microchip: mpfs: add a prefix to rx_callback()
Problem Details: Add a prefix to the function name to match the rest of the file. Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
```diff diff --git a/drivers/soc/microchip/mpfs-sys-controller.c b/drivers/soc/microchip/mpfs-sys-controller.c index ceaeebc1fc6b..216d9f4ea0ce 100644 --- a/drivers/soc/microchip/mpfs-sys-controller.c +++ b/drivers/soc/microchip/mpfs-sys-controller.c @@ -75,7 +75,7 @@ out: } EXPORT_SYMBOL(mpfs_blocking_transaction); ...
5ca631ec757bed5843e39c91c8f52d1789991756
Analyze and fix the following issue in the Linux kernel code: soc: microchip: mpfs: fix some horrible alignment
Problem Details: mpfs_sys_controller_delete() has some horrible alignment that upsets my OCD... Move the RHS of the assignment to a new line for greater satifaction. Tested-by: Valentina Fernandez <valentina.fernandezalanis@microchip.com> Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
```diff diff --git a/drivers/soc/microchip/mpfs-sys-controller.c b/drivers/soc/microchip/mpfs-sys-controller.c index 6e20207b5756..12039cb38b33 100644 --- a/drivers/soc/microchip/mpfs-sys-controller.c +++ b/drivers/soc/microchip/mpfs-sys-controller.c @@ -66,8 +66,8 @@ static void rx_callback(struct mbox_client *client,...
37e3430176ff333afb013314a6c949660d75cc92
Analyze and fix the following issue in the Linux kernel code: mailbox: mpfs: check the service status in .tx_done()
Problem Details: Services are supposed to generate an interrupt once completed, whether or not they have do so successfully. What appears to be a bug in the system controller means that interrupts are only generated for *successful* services. Currently, the status of a service is only checked in the mpfs_mbox_rx_data(...
```diff diff --git a/drivers/mailbox/mailbox-mpfs.c b/drivers/mailbox/mailbox-mpfs.c index 0d176aba3462..162df49654fb 100644 --- a/drivers/mailbox/mailbox-mpfs.c +++ b/drivers/mailbox/mailbox-mpfs.c @@ -82,8 +82,22 @@ static bool mpfs_mbox_busy(struct mpfs_mbox *mbox) static bool mpfs_mbox_last_tx_done(struct mbox_cha...
b5984a9844fc45cd301a28fb56f3de95f7e20f3c
Analyze and fix the following issue in the Linux kernel code: mailbox: mpfs: switch to txdone_poll
Problem Details: The system controller on PolarFire SoC has no interrupt to signify that the TX has been completed. The interrupt instead signals that a service requested by the mailbox client has succeeded. If a service fails, there will be no interrupt delivered. Switch to polling the busy register to determine whet...
```diff diff --git a/drivers/mailbox/mailbox-mpfs.c b/drivers/mailbox/mailbox-mpfs.c index d37560e91116..e0e825bdbad9 100644 --- a/drivers/mailbox/mailbox-mpfs.c +++ b/drivers/mailbox/mailbox-mpfs.c @@ -79,6 +79,13 @@ static bool mpfs_mbox_busy(struct mpfs_mbox *mbox) return status & SCB_STATUS_BUSY_MASK; } +stati...
75dfbcbfd781f826c73ebe42b78d49c23179d082
Analyze and fix the following issue in the Linux kernel code: mailbox: mpfs: fix an incorrect mask width
Problem Details: The system controller registers on PolarFire SoC are 32 bits wide, so 16 + 16 as the first input to GENMASK_ULL() gives a 33 bit wide mask. It probably should have been immediately obvious when it was pointed out during review that the width required using GENMASK_ULL() - but I scarcely knew what I was...
```diff diff --git a/drivers/mailbox/mailbox-mpfs.c b/drivers/mailbox/mailbox-mpfs.c index 853901acaeec..d37560e91116 100644 --- a/drivers/mailbox/mailbox-mpfs.c +++ b/drivers/mailbox/mailbox-mpfs.c @@ -39,7 +39,7 @@ #define SCB_CTRL_NOTIFY_MASK BIT(SCB_CTRL_NOTIFY) #define SCB_CTRL_POS (16) -#define SCB_CTRL_MASK ...
266e9b3475ba82212062771fdbc40be0e3c06ec8
Analyze and fix the following issue in the Linux kernel code: RDMA/siw: Remove namespace check from siw_netdev_event()
Problem Details: syzbot is reporting that siw_netdev_event(NETDEV_UNREGISTER) cannot destroy siw_device created after unshare(CLONE_NEWNET) due to net namespace check. It seems that this check was by error there and should be removed. Reported-by: syzbot <syzbot+5e70d01ee8985ae62a3b@syzkaller.appspotmail.com> Link: ht...
```diff diff --git a/drivers/infiniband/sw/siw/siw_main.c b/drivers/infiniband/sw/siw/siw_main.c index dacc174604bf..65b5cda5457b 100644 --- a/drivers/infiniband/sw/siw/siw_main.c +++ b/drivers/infiniband/sw/siw/siw_main.c @@ -437,9 +437,6 @@ static int siw_netdev_event(struct notifier_block *nb, unsigned long event, ...
5b524e4d16685a548ba143551709ded609d8ee05
Analyze and fix the following issue in the Linux kernel code: MIPS: vpe-cmp: remove module owner pointer from struct class usage.
Problem Details: In commit 6e30a66433af ("driver core: class: remove struct module owner out of struct class"), the module owner pointer was removed from struct class, but this was missed for the mips vpe-cmp code due to lack of build testing (and it being burried under a very unused config settings.) Fix this up by r...
```diff diff --git a/arch/mips/kernel/vpe-cmp.c b/arch/mips/kernel/vpe-cmp.c index 92140edb3ce3..4ef7f49a4c6d 100644 --- a/arch/mips/kernel/vpe-cmp.c +++ b/arch/mips/kernel/vpe-cmp.c @@ -79,7 +79,6 @@ static void vpe_device_release(struct device *cd) static struct class vpe_class = { .name = "vpe", - .owner = THIS...
96af01cdc34a39f04118b2c0f3a4c0c52bd7f973
Analyze and fix the following issue in the Linux kernel code: dt-bindings: remoteproc: stm32-rproc: Typo fix
Problem Details: Fix "communnication" typo error. Fixes: aca8f94e5b69 ("dt-bindings: remoteproc: stm32-rproc: add new mailbox channel for detach") Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> [Fixed title to read "stm32-rproc" instead of ...
```diff diff --git a/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml index 66b1e3efdaa3..ff95648f4967 100644 --- a/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml +++ b/Documentation/devicetree/bindings/remoteproc/st,st...
e0e01de8ee146986872e54e8365f4b4654819412
Analyze and fix the following issue in the Linux kernel code: remoteproc: imx_dsp_rproc: Call of_node_put() on iteration error
Problem Details: Function of_phandle_iterator_next() calls of_node_put() on the last device_node it iterated over, but when the loop exits prematurely it has to be called explicitly. Fixes: ec0e5549f358 ("remoteproc: imx_dsp_rproc: Add remoteproc driver for DSP on i.MX") Cc: stable@vger.kernel.org Signed-off-by: Mathi...
```diff diff --git a/drivers/remoteproc/imx_dsp_rproc.c b/drivers/remoteproc/imx_dsp_rproc.c index b8f268d41773..21759d9e5b7b 100644 --- a/drivers/remoteproc/imx_dsp_rproc.c +++ b/drivers/remoteproc/imx_dsp_rproc.c @@ -650,15 +650,19 @@ static int imx_dsp_rproc_add_carveout(struct imx_dsp_rproc *priv) rmem = of_re...
5ef074e805ecfd9a16dbb7b6b88bbfa8abad7054
Analyze and fix the following issue in the Linux kernel code: remoteproc: imx_rproc: Call of_node_put() on iteration error
Problem Details: Function of_phandle_iterator_next() calls of_node_put() on the last device_node it iterated over, but when the loop exits prematurely it has to be called explicitly. Fixes: b29b4249f8f0 ("remoteproc: imx_rproc: add i.MX specific parse fw hook") Cc: stable@vger.kernel.org Signed-off-by: Mathieu Poirier...
```diff diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c index 9fc978e0393c..0ab840dc7e97 100644 --- a/drivers/remoteproc/imx_rproc.c +++ b/drivers/remoteproc/imx_rproc.c @@ -541,6 +541,7 @@ static int imx_rproc_prepare(struct rproc *rproc) rmem = of_reserved_mem_lookup(it.node); if ...
f8bae637d3d5e082b4ced71e28b16eb3ee0683c1
Analyze and fix the following issue in the Linux kernel code: remoteproc: rcar_rproc: Call of_node_put() on iteration error
Problem Details: Function of_phandle_iterator_next() calls of_node_put() on the last device_node it iterated over, but when the loop exits prematurely it has to be called explicitly. Fixes: 285892a74f13 ("remoteproc: Add Renesas rcar driver") Cc: stable@vger.kernel.org Signed-off-by: Mathieu Poirier <mathieu.poirier@l...
```diff diff --git a/drivers/remoteproc/rcar_rproc.c b/drivers/remoteproc/rcar_rproc.c index aa86154109c7..1ff2a73ade90 100644 --- a/drivers/remoteproc/rcar_rproc.c +++ b/drivers/remoteproc/rcar_rproc.c @@ -62,13 +62,16 @@ static int rcar_rproc_prepare(struct rproc *rproc) rmem = of_reserved_mem_lookup(it.node); ...
8a74918948b40317a5b5bab9739d13dcb5de2784
Analyze and fix the following issue in the Linux kernel code: remoteproc: st: Call of_node_put() on iteration error
Problem Details: Function of_phandle_iterator_next() calls of_node_put() on the last device_node it iterated over, but when the loop exits prematurely it has to be called explicitly. Fixes: 3df52ed7f269 ("remoteproc: st: add reserved memory support") Cc: stable@vger.kernel.org Signed-off-by: Mathieu Poirier <mathieu.p...
```diff diff --git a/drivers/remoteproc/st_remoteproc.c b/drivers/remoteproc/st_remoteproc.c index a3268d95a50e..e6bd3c7a950a 100644 --- a/drivers/remoteproc/st_remoteproc.c +++ b/drivers/remoteproc/st_remoteproc.c @@ -129,6 +129,7 @@ static int st_rproc_parse_fw(struct rproc *rproc, const struct firmware *fw) while ...
9243d70e05c5989f84f840612965f96b524da925
Analyze and fix the following issue in the Linux kernel code: drm/mediatek: dp: Change the aux retries times when receiving AUX_DEFER
Problem Details: DP 1.4a Section 2.8.7.1.5.6.1: A DP Source device shall retry at least seven times upon receiving AUX_DEFER before giving up the AUX transaction. The drm_dp_i2c_do_msg() function in the drm_dp_helper.c file will judge the status of the msg->reply parameter passed to aux_transfer for different processi...
```diff diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c index a82f53e1a146..64eee77452c0 100644 --- a/drivers/gpu/drm/mediatek/mtk_dp.c +++ b/drivers/gpu/drm/mediatek/mtk_dp.c @@ -806,10 +806,9 @@ static int mtk_dp_aux_wait_for_completion(struct mtk_dp *mtk_dp, bool is_read) } sta...
ccadca5baf5124a880f2bb50ed1ec265415f025b
Analyze and fix the following issue in the Linux kernel code: remoteproc: stm32: Call of_node_put() on iteration error
Problem Details: Function of_phandle_iterator_next() calls of_node_put() on the last device_node it iterated over, but when the loop exits prematurely it has to be called explicitly. Fixes: 13140de09cc2 ("remoteproc: stm32: add an ST stm32_rproc driver") Cc: stable@vger.kernel.org Signed-off-by: Mathieu Poirier <mathi...
```diff diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c index 7d782ed9e589..23c1690b8d73 100644 --- a/drivers/remoteproc/stm32_rproc.c +++ b/drivers/remoteproc/stm32_rproc.c @@ -223,11 +223,13 @@ static int stm32_rproc_prepare(struct rproc *rproc) while (of_phandle_iterator_next(&it) ...
93942b70461574ca7fc3d91494ca89b16a4c64c7
Analyze and fix the following issue in the Linux kernel code: mtd: rawnand: meson: fix bitmask for length in command word
Problem Details: Valid mask is 0x3FFF, without this patch the following problems were found: 1) [ 0.938914] Could not find a valid ONFI parameter page, trying bit-wise majority to recover it [ 0.947384] ONFI parameter recovery failed, aborting 2) Read with disabled ECC mode was broken. Fix...
```diff diff --git a/drivers/mtd/nand/raw/meson_nand.c b/drivers/mtd/nand/raw/meson_nand.c index a28574c00900..074e14225c06 100644 --- a/drivers/mtd/nand/raw/meson_nand.c +++ b/drivers/mtd/nand/raw/meson_nand.c @@ -280,7 +280,7 @@ static void meson_nfc_cmd_access(struct nand_chip *nand, int raw, bool dir, if (raw) ...
0c3089601f064d80b3838eceb711fcac04bceaad
Analyze and fix the following issue in the Linux kernel code: mtdblock: tolerate corrected bit-flips
Problem Details: mtd_read() may return -EUCLEAN in case of corrected bit-flips.This particular condition should not be treated like an error. Signed-off-by: Bang Li <libang.linuxer@gmail.com> Fixes: e47f68587b82 ("mtd: check for max_bitflips in mtd_read_oob()") Cc: <stable@vger.kernel.org> # v3.7 Acked-by: Richard Wei...
```diff diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c index 1e94e7d10b8b..a0a1194dc1d9 100644 --- a/drivers/mtd/mtdblock.c +++ b/drivers/mtd/mtdblock.c @@ -153,7 +153,7 @@ static int do_cached_write (struct mtdblk_dev *mtdblk, unsigned long pos, mtdblk->cache_state = STATE_EMPTY; ret = mtd_read...
ddbb664b6ab8de7dffa388ae0c88cd18616494e5
Analyze and fix the following issue in the Linux kernel code: mtd: rawnand: stm32_fmc2: use timings.mode instead of checking tRC_min
Problem Details: Use timings.mode value instead of checking tRC_min timing for EDO mode support. Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com> Fixes: 2cd457f328c1 ("mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver") Cc: stable@vger.kernel.org #v5.10+ Reviewed-by: Tudor Ambarus...
```diff diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c index 3abb63d00a0b..9e74bcd90aaa 100644 --- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c +++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c @@ -1531,7 +1531,7 @@ static int stm32_fmc2_nfc_setup_interface(struct nand_chip *chip, i...
f71e0e329c152c7f11ddfd97ffc62aba152fad3f
Analyze and fix the following issue in the Linux kernel code: mtd: rawnand: stm32_fmc2: remove unsupported EDO mode
Problem Details: Remove the EDO mode support from as the FMC2 controller does not support the feature. Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com> Fixes: 2cd457f328c1 ("mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver") Cc: stable@vger.kernel.org #v5.4+ Reviewed-by: Tudor Am...
```diff diff --git a/drivers/mtd/nand/raw/stm32_fmc2_nand.c b/drivers/mtd/nand/raw/stm32_fmc2_nand.c index 5d627048c420..3abb63d00a0b 100644 --- a/drivers/mtd/nand/raw/stm32_fmc2_nand.c +++ b/drivers/mtd/nand/raw/stm32_fmc2_nand.c @@ -1531,6 +1531,9 @@ static int stm32_fmc2_nfc_setup_interface(struct nand_chip *chip, i...
d3cba7f02cd82118c32651c73374d8a5a459d9a6
Analyze and fix the following issue in the Linux kernel code: tracing/osnoise: Fix notify new tracing_max_latency
Problem Details: osnoise/timerlat tracers are reporting new max latency on instances where the tracing is off, creating inconsistencies between the max reported values in the trace and in the tracing_max_latency. Thus only report new tracing_max_latency on active tracing instances. Link: https://lkml.kernel.org/r/ecd1...
```diff diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c index e8116094bed8..4496975f2029 100644 --- a/kernel/trace/trace_osnoise.c +++ b/kernel/trace/trace_osnoise.c @@ -1296,7 +1296,7 @@ static void notify_new_max_latency(u64 latency) rcu_read_lock(); list_for_each_entry_rcu(inst, &osnoise...
b9f451a9029a16eb7913ace09b92493d00f2e564
Analyze and fix the following issue in the Linux kernel code: tracing/timerlat: Notify new max thread latency
Problem Details: timerlat is not reporting a new tracing_max_latency for the thread latency. The reason is that it is not calling notify_new_max_latency() function after the new thread latency is sampled. Call notify_new_max_latency() after computing the thread latency. Link: https://lkml.kernel.org/r/16e18d61d69073d...
```diff diff --git a/kernel/trace/trace_osnoise.c b/kernel/trace/trace_osnoise.c index 9176bb7a9bb4..e8116094bed8 100644 --- a/kernel/trace/trace_osnoise.c +++ b/kernel/trace/trace_osnoise.c @@ -1738,6 +1738,8 @@ static int timerlat_main(void *data) trace_timerlat_sample(&s); + notify_new_max_latency(diff); + ...
ea65b41807a26495ff2a73dd8b1bab2751940887
Analyze and fix the following issue in the Linux kernel code: ftrace: Mark get_lock_parent_ip() __always_inline
Problem Details: If the compiler decides not to inline this function then preemption tracing will always show an IP inside the preemption disabling path and never the function actually calling preempt_{enable,disable}. Link: https://lore.kernel.org/linux-trace-kernel/20230327173647.1690849-1-john@metanate.com Cc: Mas...
```diff diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 366c730beaa3..402fc061de75 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -980,7 +980,7 @@ static inline void __ftrace_enabled_restore(int enabled) #define CALLER_ADDR5 ((unsigned long)ftrace_return_address(5)) #define CAL...
6455b6163d8c680366663cdb8c679514d55fc30c
Analyze and fix the following issue in the Linux kernel code: ring-buffer: Fix race while reader and writer are on the same page
Problem Details: When user reads file 'trace_pipe', kernel keeps printing following logs that warn at "cpu_buffer->reader_page->read > rb_page_size(reader)" in rb_get_reader_page(). It just looks like there's an infinite loop in tracing_read_pipe(). This problem occurs several times on arm64 platform when testing v5.10...
```diff diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index c6f47b6cfd5f..76a2d91eecad 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -3098,6 +3098,10 @@ rb_set_commit_to_write(struct ring_buffer_per_cpu *cpu_buffer) if (RB_WARN_ON(cpu_buffer, rb_is_read...
4ccf11c4e8a8e051499d53a12f502196c97a758e
Analyze and fix the following issue in the Linux kernel code: tracing/synthetic: Fix races on freeing last_cmd
Problem Details: Currently, the "last_cmd" variable can be accessed by multiple processes asynchronously when multiple users manipulate synthetic_events node at the same time, it could lead to use-after-free or double-free. This patch add "lastcmd_mutex" to prevent "last_cmd" from being accessed asynchronously. =====...
```diff diff --git a/kernel/trace/trace_events_synth.c b/kernel/trace/trace_events_synth.c index 46d0abb32d0f..f0ff730125bf 100644 --- a/kernel/trace/trace_events_synth.c +++ b/kernel/trace/trace_events_synth.c @@ -44,14 +44,21 @@ enum { ERRORS }; static const char *err_text[] = { ERRORS }; +DEFINE_MUTEX(lastcmd_m...
738a96c4a8c36950803fdd27e7c30aca92dccefd
Analyze and fix the following issue in the Linux kernel code: bpf, arm64: Fixed a BTI error on returning to patched function
Problem Details: When BPF_TRAMP_F_CALL_ORIG is set, BPF trampoline uses BLR to jump back to the instruction next to call site to call the patched function. For BTI-enabled kernel, the instruction next to call site is usually PACIASP, in this case, it's safe to jump back with BLR. But when the call site is not followed ...
```diff diff --git a/arch/arm64/net/bpf_jit.h b/arch/arm64/net/bpf_jit.h index a6acb94ea3d6..c2edadb8ec6a 100644 --- a/arch/arm64/net/bpf_jit.h +++ b/arch/arm64/net/bpf_jit.h @@ -281,4 +281,8 @@ /* DMB */ #define A64_DMB_ISH aarch64_insn_gen_dmb(AARCH64_INSN_MB_ISH) +/* ADR */ +#define A64_ADR(Rd, offset) \ + aarch...
7b75c4703609a3ebaf67271813521bc0281e1ec1
Analyze and fix the following issue in the Linux kernel code: gpio: davinci: Add irq chip flag to skip set wake
Problem Details: Add the IRQCHIP_SKIP_SET_WAKE flag since there are no special IRQ Wake bits that can be set to enable wakeup IRQ. Fixes: 3d9edf09d452 ("[ARM] 4457/2: davinci: GPIO support") Signed-off-by: Dhruva Gole <d-gole@ti.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszew...
```diff diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c index 636c4df43fee..43b2dc8821e6 100644 --- a/drivers/gpio/gpio-davinci.c +++ b/drivers/gpio/gpio-davinci.c @@ -324,7 +324,7 @@ static struct irq_chip gpio_irqchip = { .irq_enable = gpio_irq_enable, .irq_disable = gpio_irq_disable, .ir...
fe092498cb9638418c96675be320c74a16306b48
Analyze and fix the following issue in the Linux kernel code: gpio: davinci: Do not clear the bank intr enable bit in save_context
Problem Details: The interrupt enable bits might be set if we want to use the GPIO as wakeup source. Clearing this will mean disabling of interrupts in the GPIO banks that we may want to wakeup from. Thus remove the line that was clearing this bit from the driver's save context function. Cc: Devarsh Thakkar <devarsht@...
```diff diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c index 26b1f7465e09..636c4df43fee 100644 --- a/drivers/gpio/gpio-davinci.c +++ b/drivers/gpio/gpio-davinci.c @@ -641,9 +641,6 @@ static void davinci_gpio_save_context(struct davinci_gpio_controller *chips, context->set_falling = readl_rela...
a915450e0e44e9ed2a87fc5b3208d5ce01554a8a
Analyze and fix the following issue in the Linux kernel code: drm/i915/i915_vma: Provide one missing param and demote another non-kerneldoc header
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/i915_vma.c:756: warning: Function parameter or member 'ww' not described in 'i915_vma_insert' drivers/gpu/drm/i915/i915_vma.c:1744: warning: Function parameter or member 'vma' not described in 'i915_vma_destroy_locked' Cc: Jani N...
```diff diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c index 5272e2be990e..b9455f9441c4 100644 --- a/drivers/gpu/drm/i915/i915_vma.c +++ b/drivers/gpu/drm/i915/i915_vma.c @@ -738,6 +738,7 @@ bool i915_gem_valid_gtt_space(struct i915_vma *vma, unsigned long color) /** * i915_vma_insert...
2447c731fe55a36accdd7aff96670d69c06c2372
Analyze and fix the following issue in the Linux kernel code: drm/i915/gt/uc/intel_guc_hwconfig: Demote a few non-conforming kerneldoc headers
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c:112: warning: Function parameter or member 'gt' not described in 'guc_hwconfig_init' drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c:112: warning: expecting prototype for intel_guc_hwconfig_init(). Proto...
```diff diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c index 4781fccc2687..852bea0208ce 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_hwconfig.c @@ -102,7 +102,7 @@ static bool has_table(struct drm_...
5d9543162fd6686e83f86a448fe2ba2e7a5ebbb5
Analyze and fix the following issue in the Linux kernel code: drm/i915/i915_gem: Provide function names to complete the expected kerneldoc format
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/i915_gem.c:447: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst drivers/gpu/drm/i915/i915_gem.c:536: warning: This comment starts with '/**', but isn't a kernel...
```diff diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 2ba922fbbd5f..ecb47f834217 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -444,7 +444,7 @@ out_rpm: } /** - * Reads data from the object referenced by handle. + * i915_gem_pread_ioctl ...
81d4baaf4b876589a72a500d45f2c67bbe82bcc2
Analyze and fix the following issue in the Linux kernel code: drm/i915/gem/i915_gem_object: Demote non-kerneldoc header with no param descriptions
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/gem/i915_gem_object.c:887: warning: Function parameter or member 'obj' not described in 'i915_gem_object_has_unknown_state' Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Ro...
```diff diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.c b/drivers/gpu/drm/i915/gem/i915_gem_object.c index e6d4efde4fc5..4666bb82f312 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.c @@ -875,7 +875,7 @@ int i915_gem_object_wait_moving_fence(struct drm_i915...
0f923778f47bfc8c47fabb6a93721ae71a6e6702
Analyze and fix the following issue in the Linux kernel code: drm/i915/gem/i915_gem_wait: Provide function name to validate the kerneldoc header
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/gem/i915_gem_wait.c:164: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linu...
```diff diff --git a/drivers/gpu/drm/i915/gem/i915_gem_wait.c b/drivers/gpu/drm/i915/gem/i915_gem_wait.c index e6e01c2a74a6..4a33ad2d122b 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_wait.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_wait.c @@ -161,7 +161,7 @@ i915_gem_object_wait_priority(struct drm_i915_gem_object *obj...
6adba2903fa16c0c55b1f1e3f6506c407a26ff88
Analyze and fix the following issue in the Linux kernel code: drm/i915/gem/i915_gem_ttm_move: Provide a couple of missing descriptions for 'num_pages' and 'ctx'
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c:272: warning: Function parameter or member 'num_pages' not described in 'i915_ttm_memcpy_arg' drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c:569: warning: Function parameter or member 'ctx' not described in '...
```diff diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c index 2ebaaf4d663c..6e3de0f33add 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm_move.c @@ -237,6 +237,7 @@ static struct dma_fence *i915_ttm_accel_move(...
98a1dacc246dad474c9f7ddf4f0c7e92d49a15c3
Analyze and fix the following issue in the Linux kernel code: drm/i915/gem/i915_gem_ttm: Demote half-filled kerneldoc
Problem Details: Hopefully someone knowledgable will follow-up to complete it. Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/gem/i915_gem_ttm.c:1292: warning: Function parameter or member 'offset' not described in '__i915_gem_ttm_object_init' drivers/gpu/drm/i915/gem/i915_gem_ttm.c:1292: war...
```diff diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c index 8cfed1bef629..e28c34d9dba9 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c @@ -1250,7 +1250,7 @@ void i915_ttm_bo_destroy(struct ttm_buffer_object *bo) } } ...
71d93eac585a5f94433d7d4a7340a0d7081d925c
Analyze and fix the following issue in the Linux kernel code: drm/i915/gem/i915_gem_ttm_pm: Provide a couple of missing descriptions for 'flags' and remove some superfluous ones
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c:156: warning: Function parameter or member 'flags' not described in 'i915_ttm_backup_region' drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c:156: warning: Excess function parameter 'allow_gpu' description in 'i915...
```diff diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c index 7e67742bc65e..be644763d3bb 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm_pm.c @@ -144,8 +144,7 @@ void i915_ttm_recover_region(struct intel_memory_regi...
0b81afa5b6d245809d3cc0613adfe6098695253d
Analyze and fix the following issue in the Linux kernel code: drm/i915/gem/i915_gem_domain: Provide function names to complete proper kerneldoc
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/gem/i915_gem_domain.c:119: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst drivers/gpu/drm/i915/gem/i915_gem_domain.c:180: warning: This comment starts with '/*...
```diff diff --git a/drivers/gpu/drm/i915/gem/i915_gem_domain.c b/drivers/gpu/drm/i915/gem/i915_gem_domain.c index 9969e687ad85..b0b6cdb0b07f 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_domain.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_domain.c @@ -115,7 +115,8 @@ void i915_gem_object_flush_if_display_locked(struct d...
b29b32a2ae5a6753cdbe13cf2e64c752743f1923
Analyze and fix the following issue in the Linux kernel code: drm/i915/gem/i915_gem_create: Provide the function names for proper kerneldoc headers
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/gem/i915_gem_create.c:147: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst drivers/gpu/drm/i915/gem/i915_gem_create.c:218: warning: This comment starts with '/*...
```diff diff --git a/drivers/gpu/drm/i915/gem/i915_gem_create.c b/drivers/gpu/drm/i915/gem/i915_gem_create.c index 005a7f842784..f55dcc01d97f 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_create.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_create.c @@ -143,7 +143,8 @@ object_free: } /** - * Creates a new object using...
445a1b818e20fbfff5905bb9070da703101a5c00
Analyze and fix the following issue in the Linux kernel code: drm/i915/gt/intel_rps: Demote a kerneldoc abuse for ips_ping_for_i915_load()
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/gt/intel_rps.c:2646: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.in...
```diff diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c index fc73cfe0e39b..2adf221ab11b 100644 --- a/drivers/gpu/drm/i915/gt/intel_rps.c +++ b/drivers/gpu/drm/i915/gt/intel_rps.c @@ -2674,7 +2674,7 @@ bool rps_read_mask_mmio(struct intel_rps *rps, static struct drm_i915_privat...
5c908cd57eeb857f107732773a653c89ad08e9ce
Analyze and fix the following issue in the Linux kernel code: drm/i915/intel_region_ttm: Provide missing description for 'offset' param
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/intel_region_ttm.c:201: warning: Function parameter or member 'offset' not described in 'intel_region_ttm_resource_alloc' Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodr...
```diff diff --git a/drivers/gpu/drm/i915/intel_region_ttm.c b/drivers/gpu/drm/i915/intel_region_ttm.c index b7fbd5abb42a..bf6097e7433d 100644 --- a/drivers/gpu/drm/i915/intel_region_ttm.c +++ b/drivers/gpu/drm/i915/intel_region_ttm.c @@ -181,6 +181,7 @@ intel_region_ttm_resource_to_rsgt(struct intel_memory_region *mem...
e6a1e701edd0ef8fd51fd50e11bf29bbb2f37313
Analyze and fix the following issue in the Linux kernel code: drm/i915/i915_scatterlist: Fix kerneldoc formatting issue - missing '@'
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/i915_scatterlist.c:62: warning: Function parameter or member 'size' not described in 'i915_refct_sgt_init' Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Rodrigo Vivi <rodri...
```diff diff --git a/drivers/gpu/drm/i915/i915_scatterlist.c b/drivers/gpu/drm/i915/i915_scatterlist.c index 756289e43dff..e71089d6741a 100644 --- a/drivers/gpu/drm/i915/i915_scatterlist.c +++ b/drivers/gpu/drm/i915/i915_scatterlist.c @@ -56,7 +56,7 @@ static const struct i915_refct_sgt_ops rsgt_ops = { /** * i915_r...
3eeca5e5f3100435b06a5b5d86daa3d135a8a4bd
Analyze and fix the following issue in the Linux kernel code: drm/msm/adreno: adreno_gpu: Use suspend() instead of idle() on load error
Problem Details: The adreno_load_gpu() path is guarded by an error check on adreno_load_fw(). This function is responsible for loading Qualcomm-only-signed binaries (e.g. SQE and GMU FW for A6XX), but it does not take the vendor-signed ZAP blob into account. By embedding the SQE (and GMU, if necessary) firmware into t...
```diff diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c index 4d1448714285..8cff86e9d35c 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_device.c +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c @@ -471,7 +471,7 @@ struct msm_gpu *adreno_load_gpu(struct drm_device *de...
0332bd042eb674bc430757d21a705b4f698cd262
Analyze and fix the following issue in the Linux kernel code: drm/msm/adreno: adreno_gpu: Don't set OPP scaling clock w/ GMU
Problem Details: Recently I contributed the switch to OPP API for all Adreno generations. I did however also skip over the fact that GPUs with a GMU don't specify a core clock of any kind in the GPU node. While that didn't break anything, it did introduce unwanted spam in the dmesg: adreno 5000000.gpu: error -ENOENT: ...
```diff diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index bb38e728864d..6934cee07d42 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -1074,18 +1074,22 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_d...
cf5fa3ca0552f1b7ba8490de40700bbfb6979b17
Analyze and fix the following issue in the Linux kernel code: wifi: ath11k: reduce the MHI timeout to 20s
Problem Details: Currently ath11k breaks after hibernation, the reason being that ath11k expects that the wireless device will have power during suspend and the firmware will continue running. But of course during hibernation the power from the device is cut off and firmware is not running when resuming, so ath11k will...
```diff diff --git a/drivers/net/wireless/ath/ath11k/mhi.c b/drivers/net/wireless/ath/ath11k/mhi.c index 86995e8dc913..a62ee05c5409 100644 --- a/drivers/net/wireless/ath/ath11k/mhi.c +++ b/drivers/net/wireless/ath/ath11k/mhi.c @@ -16,7 +16,7 @@ #include "pci.h" #include "pcic.h" -#define MHI_TIMEOUT_DEFAULT_MS 9000...
cbef9a83c51dfcb07f77cfa6ac26f53a1ea86f49
Analyze and fix the following issue in the Linux kernel code: wifi: rt2x00: Fix memory leak when handling surveys
Problem Details: When removing a rt2x00 device, its associated channel surveys are not freed, causing a memory leak observable with kmemleak: unreferenced object 0xffff9620f0881a00 (size 512): comm "systemd-udevd", pid 2290, jiffies 4294906974 (age 33.768s) hex dump (first 32 bytes): 70 44 12 00 00 00 00 00 92...
```diff diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c index 3a035afcf7f9..9a9cfd0ce402 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c @@ -1091,6 +1091,7 @@ static void rt2x00lib_remove_hw(str...
e83ce86aa7d914484038b181725718136387c7e1
Analyze and fix the following issue in the Linux kernel code: wifi: b43legacy: Remove the unused function prev_slot()
Problem Details: The function prev_slot is defined in the dma.c file, but not called elsewhere, so remove this unused function. drivers/net/wireless/broadcom/b43legacy/dma.c:130:19: warning: unused function 'prev_slot'. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Link: https://bugzilla.openanolis.cn/show_bug.c...
```diff diff --git a/drivers/net/wireless/broadcom/b43legacy/dma.c b/drivers/net/wireless/broadcom/b43legacy/dma.c index 6869f2bf1bae..60e41de72f29 100644 --- a/drivers/net/wireless/broadcom/b43legacy/dma.c +++ b/drivers/net/wireless/broadcom/b43legacy/dma.c @@ -127,14 +127,6 @@ static inline int next_slot(struct b43le...
47515664ecfbde11425dff121f298ae4499425c9
Analyze and fix the following issue in the Linux kernel code: wifi: rtw89: fix potential race condition between napi_init and napi_enable
Problem Details: A race condition can happen if netdev is registered, but NAPI isn't initialized yet, and meanwhile user space starts the netdev that will enable NAPI. Then, it hits BUG_ON(): kernel BUG at net/core/dev.c:6423! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 0 PID: 417 Comm: iwd Not tainted 6.2.7-s...
```diff diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c index 0ec52a8b83b0..56a13be2e283 100644 --- a/drivers/net/wireless/realtek/rtw89/core.c +++ b/drivers/net/wireless/realtek/rtw89/core.c @@ -3455,18 +3455,22 @@ static int rtw89_core_register_hw(struct rtw89_dev *r...
40711486c7ba91a35ba495564e45be0f2a1b3729
Analyze and fix the following issue in the Linux kernel code: wifi: rtw89: fix incorrect channel info during scan due to ppdu_sts filtering
Problem Details: We use ppdu_sts to obtain channel information from hardware, to ensure that the scan results have correct channel information. However, some of ppdu_sts that is filtered by the to_self check is also needed for the scan results. Therefore, we modify the filter part in front of CFO count. Signed-off-by:...
```diff diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c index 208fd589ffa2..448597835761 100644 --- a/drivers/net/wireless/realtek/rtw89/core.c +++ b/drivers/net/wireless/realtek/rtw89/core.c @@ -1220,6 +1220,10 @@ static void rtw89_core_parse_phy_status_ie01(struct rt...
d808459b2e31bd5123a14258a7a529995db974c8
Analyze and fix the following issue in the Linux kernel code: io_uring: Adjust mapping wrt architecture aliasing requirements
Problem Details: Some architectures have memory cache aliasing requirements (e.g. parisc) if memory is shared between userspace and kernel. This patch fixes the kernel to return an aliased address when asked by userspace via mmap(). Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Jens Axboe <axboe@kernel.dk...
```diff diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 1ed96caa586a..b49b7ee12d60 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -72,6 +72,7 @@ #include <linux/io_uring.h> #include <linux/audit.h> #include <linux/security.h> +#include <asm/shmparam.h> #define CREATE_TRACE_POINTS #inc...
75a252be27300c84c83c96399fa36fb5f6364124
Analyze and fix the following issue in the Linux kernel code: drm/i915/display/intel_wm: Fix a little doc-rot in intel_update_watermarks()
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/display/intel_wm.c:46: warning: Function parameter or member 'i915' not described in 'intel_update_watermarks' drivers/gpu/drm/i915/display/intel_wm.c:46: warning: Excess function parameter 'dev_priv' description in 'intel_update_...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_wm.c b/drivers/gpu/drm/i915/display/intel_wm.c index bb99179cd5fd..b615449e70b4 100644 --- a/drivers/gpu/drm/i915/display/intel_wm.c +++ b/drivers/gpu/drm/i915/display/intel_wm.c @@ -11,7 +11,7 @@ /** * intel_update_watermarks - update FIFO watermark values b...
63c154a0445aa58a1ecb933e6117327b67b6dfa0
Analyze and fix the following issue in the Linux kernel code: drm/i915/display/intel_display_power: Fix incorrectly documented function __intel_display_power_put_async()
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/display/intel_display_power.c:712: warning: expecting prototype for intel_display_power_put_async(). Prototype was for __intel_display_power_put_async() instead Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Joonas Lahtinen <jo...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 5e85572dc8e4..757bb1e2d07f 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -698,7 +698,7 @@ out_verify: } /**...
98a07b82d8ac43f1cdb4fee8c340b020372c9392
Analyze and fix the following issue in the Linux kernel code: drm/i915/display/intel_display_debugfs: Fix incorrect param naming for 'intel_connector'
Problem Details: Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/i915/display/intel_display_debugfs.c:1668: warning: Function parameter or member 'intel_connector' not described in 'intel_connector_debugfs_add' drivers/gpu/drm/i915/display/intel_display_debugfs.c:1668: warning: Excess function param...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c index bad29cdd139d..a9ef3a17b4f5 100644 --- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c +++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c @@ -1470,7 +1470,7 @@ DEFINE_SHOW...
08ebf57f6e1d73cc1890e1ff1b1c74887c53770b
Analyze and fix the following issue in the Linux kernel code: RDMA/cma: Remove NULL check before dev_{put, hold}
Problem Details: The call netdev_{put, hold} of dev_{put, hold} will check NULL, so there is no need to check before using dev_{put, hold}, remove it to silence the warnings: ./drivers/infiniband/core/cma.c:713:2-9: WARNING: NULL check before dev_{put, hold} functions is not needed. ./drivers/infiniband/core/cma.c:243...
```diff diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 308155937713..9c7d26a7d243 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -710,8 +710,7 @@ cma_validate_port(struct ib_device *device, u32 port, } sgid_attr = rdma_find_gid_by_port(device, g...
f435b7ef3b360d689df2ffa8326352cd07940d92
Analyze and fix the following issue in the Linux kernel code: drm/bridge: lt8912b: Fix DSI Video Mode
Problem Details: LT8912 DSI port supports only Non-Burst mode video operation with Sync Events and continuous clock on clock lane, correct dsi mode flags according to that removing MIPI_DSI_MODE_VIDEO_BURST flag. Cc: <stable@vger.kernel.org> Fixes: 30e2ae943c26 ("drm/bridge: Introduce LT8912B DSI to HDMI bridge") Sign...
```diff diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bridge/lontium-lt8912b.c index b40baced1331..13c131ade268 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -504,7 +504,6 @@ static int lt8912_attach_dsi(struct lt8912 *lt) dsi->format...
60b3a99a3b50c94814b84795e38e2161767ea277
Analyze and fix the following issue in the Linux kernel code: firmware: tegra: bpmp: Fix error paths in debugfs
Problem Details: Some error paths in mrq_debug_read and bpmp_debug_show would overwrite the return error code with a subsequent call to mrq_debug_close. Change the code to only change the error code if there was no prior error. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <tred...
```diff diff --git a/drivers/firmware/tegra/bpmp-debugfs.c b/drivers/firmware/tegra/bpmp-debugfs.c index 3ca2b5d9e66f..6dfe3d34109e 100644 --- a/drivers/firmware/tegra/bpmp-debugfs.c +++ b/drivers/firmware/tegra/bpmp-debugfs.c @@ -193,7 +193,7 @@ static int mrq_debug_read(struct tegra_bpmp *bpmp, const char *name, }...
c361982a13c9190bb9e76381e0b4c34637712b28
Analyze and fix the following issue in the Linux kernel code: HID: logitech-hidpp: Add support for ADC measurement feature
Problem Details: This is used in a number of Logitech headsets to report the voltage of the battery. Tested on a Logitech G935. Signed-off-by: Bastien Nocera <hadess@hadess.net> BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=216483 Link: https://lore.kernel.org/r/20230302105555.51417-2-hadess@hadess.net Signed-...
```diff diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 6f4d31d20832..d3c9d3141119 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -94,6 +94,7 @@ MODULE_PARM_DESC(disable_tap_to_click, #define HIDPP_CAPABILITY_HIDPP20_HI_RES_WHEEL BIT(7) #...
3af24372964a8f999d62427c0585d9a4693ae4e4
Analyze and fix the following issue in the Linux kernel code: ASoC: mediatek: mt8186: Move some prints to debug level
Problem Details: There are many log messages scattered throughout the mt8186 sound drivers, and they are frequently triggered. To avoid spamming the console, move these messages to the debug level. Signed-off-by: Allen-KH Cheng <allen-kh.cheng@mediatek.com> Link: https://lore.kernel.org/r/20230329080418.1100-1-allen-...
```diff diff --git a/sound/soc/mediatek/mt8186/mt8186-afe-gpio.c b/sound/soc/mediatek/mt8186/mt8186-afe-gpio.c index eda913fa147a..20b9f5d810ec 100644 --- a/sound/soc/mediatek/mt8186/mt8186-afe-gpio.c +++ b/sound/soc/mediatek/mt8186/mt8186-afe-gpio.c @@ -85,7 +85,7 @@ int mt8186_afe_gpio_init(struct device *dev) ...
de6aa72b265b72bca2b1897d5000c8f0147d3157
Analyze and fix the following issue in the Linux kernel code: ASoC: SOF: ipc4-topology: Clarify bind failure caused by missing fw_module
Problem Details: The original patch uses a feature in lib/vsprintf.c to handle the invalid address when tring to print *_fw_module->man4_module_entry.name when the *rc_fw_module is NULL. This case is handled by check_pointer_msg() internally and turns the invalid pointer to '(efault)' for printing but it is hiding usef...
```diff diff --git a/sound/soc/sof/ipc4-topology.c b/sound/soc/sof/ipc4-topology.c index 669b99a4f76e..3a5394c3dd83 100644 --- a/sound/soc/sof/ipc4-topology.c +++ b/sound/soc/sof/ipc4-topology.c @@ -1806,10 +1806,12 @@ static int sof_ipc4_route_setup(struct snd_sof_dev *sdev, struct snd_sof_route * int ret; if (!...
7065655216d4d034d71164641f3bec0b189ad6fa
Analyze and fix the following issue in the Linux kernel code: platform/x86: think-lmi: Clean up display of current_value on Thinkstation
Problem Details: On ThinkStations on retrieving the attribute value the BIOS appends the possible values to the string. Clean up the display in the current_value_show function so the options part is not displayed. Fixes: a40cd7ef22fb ("platform/x86: think-lmi: Add WMI interface support on Lenovo platforms") Reported b...
```diff diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index 87f832142d8d..78dc82bda4dd 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -920,7 +920,7 @@ static ssize_t display_name_show(struct kobject *kobj, struct kobj_attribute *at static ssiz...
e7d796fccdc8d17c2d21817ebe4c7bf5bbfe5433
Analyze and fix the following issue in the Linux kernel code: platform/x86: think-lmi: Fix memory leaks when parsing ThinkStation WMI strings
Problem Details: My previous commit introduced a memory leak where the item allocated from tlmi_setting was not freed. This commit also renames it to avoid confusion with the similarly name variable in the same function. Fixes: 8a02d70679fc ("platform/x86: think-lmi: Add possible_values for ThinkStation") Reported-by:...
```diff diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index 6034df6d577d..87f832142d8d 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -1459,10 +1459,10 @@ static int tlmi_analyze(void) * name string. * Try and pull that out if it's av...
a3c4c053014585dcf20f4df954791b74d8a8afcd
Analyze and fix the following issue in the Linux kernel code: platform/x86: think-lmi: Fix memory leak when showing current settings
Problem Details: When retriving a item string with tlmi_setting(), the result has to be freed using kfree(). In current_value_show() however, malformed item strings are not freed, causing a memory leak. Fix this by eliminating the early return responsible for this. Reported-by: Mirsad Goran Todorovac <mirsad.todorovac...
```diff diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index c816646eb661..6034df6d577d 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -930,10 +930,12 @@ static ssize_t current_value_show(struct kobject *kobj, struct kobj_attribute *a /* valid...
ea30388baebcce37fd594d425a65037ca35e59e8
Analyze and fix the following issue in the Linux kernel code: ipv6: Fix an uninit variable access bug in __ip6_make_skb()
Problem Details: Syzbot reported a bug as following: ===================================================== BUG: KMSAN: uninit-value in arch_atomic64_inc arch/x86/include/asm/atomic64_64.h:88 [inline] BUG: KMSAN: uninit-value in arch_atomic_long_inc include/linux/atomic/atomic-long.h:161 [inline] BUG: KMSAN: uninit-val...
```diff diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index c314fdde0097..95a55c6630ad 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -1965,8 +1965,13 @@ struct sk_buff *__ip6_make_skb(struct sock *sk, IP6_UPD_PO_STATS(net, rt->rt6i_idev, IPSTATS_MIB_OUT, skb->len); if (proto == IPPR...
839349d13905927d8a567ca4d21d88c82028e31d
Analyze and fix the following issue in the Linux kernel code: net: qrtr: Do not do DEL_SERVER broadcast after DEL_CLIENT
Problem Details: On the remote side, when QRTR socket is removed, af_qrtr will call qrtr_port_remove() which broadcasts the DEL_CLIENT packet to all neighbours including local NS. NS upon receiving the DEL_CLIENT packet, will remove the lookups associated with the node:port and broadcasts the DEL_SERVER packet. But on...
```diff diff --git a/net/qrtr/ns.c b/net/qrtr/ns.c index 722936f7dd98..0f25a386138c 100644 --- a/net/qrtr/ns.c +++ b/net/qrtr/ns.c @@ -274,7 +274,7 @@ err: return NULL; } -static int server_del(struct qrtr_node *node, unsigned int port) +static int server_del(struct qrtr_node *node, unsigned int port, bool bcast) ...
dc3421560a67361442f33ec962fc6dd48895a0df
Analyze and fix the following issue in the Linux kernel code: drm/i915: Fix context runtime accounting
Problem Details: When considering whether to mark one context as stopped and another as started we need to look at whether the previous and new _contexts_ are different and not just requests. Otherwise the software tracked context start time was incorrectly updated to the most recent lite-restore time- stamp, which was...
```diff diff --git a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c index 1bbe6708d0a7..750326434677 100644 --- a/drivers/gpu/drm/i915/gt/intel_execlists_submission.c +++ b/drivers/gpu/drm/i915/gt/intel_execlists_submission.c @@ -2018,6 +2018,8 @@ process_csb...
dc30c011469165d57af9adac5baff7d767d20e5c
Analyze and fix the following issue in the Linux kernel code: drm/i915: fix race condition UAF in i915_perf_add_config_ioctl
Problem Details: Userspace can guess the id value and try to race oa_config object creation with config remove, resulting in a use-after-free if we dereference the object after unlocking the metrics_lock. For that reason, unlocking the metrics_lock must be done after we are done dereferencing the object. Signed-off-b...
```diff diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index 283a4a3c6862..004074936300 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -4638,13 +4638,13 @@ int i915_perf_add_config_ioctl(struct drm_device *dev, void *data, err = oa_config->id...
95d939bb97ff9be101ae4ceeb322535589da2190
Analyze and fix the following issue in the Linux kernel code: drm/i915: Use compressed bpp when calculating m/n value for DP MST DSC
Problem Details: For obvious reasons, we use compressed bpp instead of pipe bpp for DSC DP SST case. Lets be consistent and use compressed bpp instead of pipe bpp, also in DP MST DSC case. Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 2106b3de225a..7c9b328bc2d7 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -232,7 +232,7 @@ static int intel_dp_dsc_mst_compute_link_config(s...