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a1092619dd28ac0fcf23016160a2fdccd98ef935
Analyze and fix the following issue in the Linux kernel code: USB: serial: option: fix FM101R-GL defines
Problem Details: Modify the definition of the two Fibocom FM101R-GL PID macros, which had their PIDs switched. The correct PIDs are: - VID:PID 413C:8213, FM101R-GL ESIM are laptop M.2 cards (with MBIM interfaces for Linux) - VID:PID 413C:8215, FM101R-GL are laptop M.2 cards (with MBIM interface for Linux) 0x821...
```diff diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index ff9049db6e65..9c76095ebfe1 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -203,8 +203,8 @@ static void option_instat_callback(struct urb *urb); #define DELL_PRODUCT_5829E_ESIM 0x81e4 #define DELL_PROD...
e8df9d9f4209c04161321d8c12640ae560f65939
Analyze and fix the following issue in the Linux kernel code: perf/x86/intel: Correct incorrect 'or' operation for PMU capabilities
Problem Details: When running perf-stat command on Intel hybrid platform, perf-stat reports the following errors: sudo taskset -c 7 ./perf stat -vvvv -e cpu_atom/instructions/ sleep 1 Opening: cpu/cycles/:HG ------------------------------------------------------------ perf_event_attr: type ...
```diff diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index a08f794a0e79..ce1c777227b4 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -4660,7 +4660,7 @@ static void intel_pmu_check_hybrid_pmus(struct x86_hybrid_pmu *pmu) if (pmu->intel_cap.pebs_output_pt_ava...
c807d6cd089d2f4951baa838081ec5ae3e2360f8
Analyze and fix the following issue in the Linux kernel code: hv_netvsc: Mark VF as slave before exposing it to user-mode
Problem Details: When a VF is being exposed form the kernel, it should be marked as "slave" before exposing to the user-mode. The VF is not usable without netvsc running as master. The user-mode should never see a VF without the "slave" flag. This commit moves the code of setting the slave flag to the time before VF i...
```diff diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index b7dfd51f09e6..706ea5263e87 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -2206,9 +2206,6 @@ static int netvsc_vf_join(struct net_device *vf_netdev, goto upper_link_failed; } - /* s...
85520856466ed6bc3b1ccb013cddac70ceb437db
Analyze and fix the following issue in the Linux kernel code: hv_netvsc: Fix race of register_netdevice_notifier and VF register
Problem Details: If VF NIC is registered earlier, NETDEV_REGISTER event is replayed, but NETDEV_POST_INIT is not. Move register_netdevice_notifier() earlier, so the call back function is set before probing. Cc: stable@vger.kernel.org Fixes: e04e7a7bbd4b ("hv_netvsc: Fix a deadlock by getting rtnl lock earlier in netv...
```diff diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 5e528a76f5f5..b7dfd51f09e6 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -2793,12 +2793,17 @@ static int __init netvsc_drv_init(void) } netvsc_ring_bytes = ring_size * PAGE_SIZE; + ...
d30fb712e52964f2cf9a9c14cf67078394044837
Analyze and fix the following issue in the Linux kernel code: hv_netvsc: fix race of netvsc and VF register_netdevice
Problem Details: The rtnl lock also needs to be held before rndis_filter_device_add() which advertises nvsp_2_vsc_capability / sriov bit, and triggers VF NIC offering and registering. If VF NIC finished register_netdev() earlier it may cause name based config failure. To fix this issue, move the call to rtnl_lock() be...
```diff diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index 3ba3c8fb28a5..5e528a76f5f5 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -2531,15 +2531,6 @@ static int netvsc_probe(struct hv_device *dev, goto devinfo_failed; } - nvdev = rndis_f...
c0e2926266af3b5acf28df0a8fc6e4d90effe0bb
Analyze and fix the following issue in the Linux kernel code: ipv4: Correct/silence an endian warning in __ip_do_redirect
Problem Details: net/ipv4/route.c:783:46: warning: incorrect type in argument 2 (different base types) net/ipv4/route.c:783:46: expected unsigned int [usertype] key net/ipv4/route.c:783:46: got restricted __be32 [usertype] new_gw Fixes: 969447f226b4 ("ipv4: use new_gw for redirect neigh lookup") Suggested-by: Er...
```diff diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 3290a4442b4a..16615d107cf0 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -780,7 +780,7 @@ static void __ip_do_redirect(struct rtable *rt, struct sk_buff *skb, struct flow goto reject_redirect; } - n = __ipv4_neigh_lookup(rt->dst.dev, new_g...
d6b83f1e3707c4d60acfa58afd3515e17e5d5384
Analyze and fix the following issue in the Linux kernel code: bonding: return -ENOMEM instead of BUG in alb_upper_dev_walk
Problem Details: If failed to allocate "tags" or could not find the final upper device from start_dev's upper list in bond_verify_device_path(), only the loopback detection of the current upper device should be affected, and the system is no need to be panic. So return -ENOMEM in alb_upper_dev_walk to stop walking, pri...
```diff diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index dc2c7b979656..7edf0fd58c34 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -985,7 +985,8 @@ static int alb_upper_dev_walk(struct net_device *upper, if (netif_is_macvlan(upper) && !strict_matc...
4e7a8dbd2bc0aec4605a5069df7a779bd9e64db1
Analyze and fix the following issue in the Linux kernel code: pwm: bcm2835: Fix NPD in suspend/resume
Problem Details: When 119a508c4dc9 ("pwm: bcm2835: Add support for suspend/resume") was sent out on October 11th,, there was still a call to platform_set_drvdata() which would ensure that the driver private data structure could be used in bcm2835_pwm_{suspend,resume}. A cleanup now merged as commit commit 2ce7b7f6704c...
```diff diff --git a/drivers/pwm/pwm-bcm2835.c b/drivers/pwm/pwm-bcm2835.c index 9777babd5b95..ab30667f4f95 100644 --- a/drivers/pwm/pwm-bcm2835.c +++ b/drivers/pwm/pwm-bcm2835.c @@ -155,6 +155,8 @@ static int bcm2835_pwm_probe(struct platform_device *pdev) pc->chip.ops = &bcm2835_pwm_ops; pc->chip.npwm = 2; + pl...
38360bf96d816e175bc602c4ee76953cd303b71d
Analyze and fix the following issue in the Linux kernel code: drm/tilcdc: Fix irq free on unload
Problem Details: The driver only frees the reserved irq if priv->irq_enabled is set to true. However, the driver mistakenly sets priv->irq_enabled to false, instead of true, in tilcdc_irq_install(), and thus the driver never frees the irq, causing issues on loading the driver a second time. Fixes: b6366814fa77 ("drm/t...
```diff diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c index 8ebd7134ee21..2f6eaac7f659 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c @@ -138,7 +138,7 @@ static int tilcdc_irq_install(struct drm_device *dev, unsigned int irq) if (ret...
8d6ef26501b97243ee6c16b8187c5b38cb69b77d
Analyze and fix the following issue in the Linux kernel code: drm/ast: Disconnect BMC if physical connector is connected
Problem Details: Many user-space compositors fail with mode setting if a CRTC has more than one connected connector. This is the case with the BMC on Aspeed systems. Work around this problem by setting the BMC's connector status to disconnected when the physical connector has a display attached. This way compositors wi...
```diff diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h index 2aee32344f4a..772f3b049c16 100644 --- a/drivers/gpu/drm/ast/ast_drv.h +++ b/drivers/gpu/drm/ast/ast_drv.h @@ -174,6 +174,17 @@ to_ast_sil164_connector(struct drm_connector *connector) return container_of(connector, struct ast_sil...
a5e913c25b6b2b6ae02acef6d9400645ac03dfdf
Analyze and fix the following issue in the Linux kernel code: HID: glorious: fix Glorious Model I HID report
Problem Details: The Glorious Model I mouse has a buggy HID report descriptor for its keyboard endpoint (used for programmable buttons). For report ID 2, there is a mismatch between Logical Minimum and Usage Minimum in the array that reports keycodes. The offending portion of the descriptor: (from hid-decode) 0x95, 0...
```diff diff --git a/drivers/hid/hid-glorious.c b/drivers/hid/hid-glorious.c index 558eb08c19ef..281b3a7187ce 100644 --- a/drivers/hid/hid-glorious.c +++ b/drivers/hid/hid-glorious.c @@ -21,6 +21,10 @@ MODULE_DESCRIPTION("HID driver for Glorious PC Gaming Race mice"); * Glorious Model O and O- specify the const flag ...
fc43e9c857b7aa55efba9398419b14d9e35dcc7d
Analyze and fix the following issue in the Linux kernel code: HID: fix HID device resource race between HID core and debugging support
Problem Details: hid_debug_events_release releases resources bound to the HID device instance. hid_device_release releases the underlying HID device instance potentially before hid_debug_events_release has completed releasing debug resources bound to the same HID device instance. Reference count to prevent the HID dev...
```diff diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 8992e3c1e769..e0181218ad85 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -702,15 +702,22 @@ static void hid_close_report(struct hid_device *device) * Free a device structure, all reports, and all fields. */ -static vo...
113f736655e4f20633e107d731dd5bd097d5938c
Analyze and fix the following issue in the Linux kernel code: HID: apple: add Jamesdonkey and A3R to non-apple keyboards list
Problem Details: Jamesdonkey A3R keyboard is identified as "Jamesdonkey A3R" in wired mode, "A3R-U" in wireless mode and "A3R" in bluetooth mode. Adding them to non-apple keyboards fixes function key. Signed-off-by: Yihong Cao <caoyihong4@outlook.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
```diff diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c index 3ca45975c686..d9e9829b2200 100644 --- a/drivers/hid/hid-apple.c +++ b/drivers/hid/hid-apple.c @@ -345,6 +345,8 @@ static const struct apple_non_apple_keyboard non_apple_keyboards[] = { { "AONE" }, { "GANSS" }, { "Hailuck" }, + { "Jamesdo...
f2d4a5834638bbc967371b9168c0b481519f7c5e
Analyze and fix the following issue in the Linux kernel code: HID: mcp2221: Set driver data before I2C adapter add
Problem Details: The process of adding an I2C adapter can invoke I2C accesses on that new adapter (see i2c_detect()). Ensure we have set the adapter's driver data to avoid null pointer dereferences in the xfer functions during the adapter add. This has been noted in the past and the same fix proposed but not complete...
```diff diff --git a/drivers/hid/hid-mcp2221.c b/drivers/hid/hid-mcp2221.c index 72883e0ce757..b95f31cf0fa2 100644 --- a/drivers/hid/hid-mcp2221.c +++ b/drivers/hid/hid-mcp2221.c @@ -1157,12 +1157,12 @@ static int mcp2221_probe(struct hid_device *hdev, snprintf(mcp->adapter.name, sizeof(mcp->adapter.name), "MCP22...
3f7c0634926daf48cd2f6db6c1197a1047074088
Analyze and fix the following issue in the Linux kernel code: accel/ivpu/37xx: Fix hangs related to MMIO reset
Problem Details: There is no need to call MMIO reset using VPU_37XX_BUTTRESS_VPU_IP_RESET register. IP will be reset by FLR or by entering d0i3. Also IP reset during power_up is not needed as the VPU is already in reset. Removing MMIO reset improves stability as it a partial device reset that is not safe in some corne...
```diff diff --git a/drivers/accel/ivpu/ivpu_hw_37xx.c b/drivers/accel/ivpu/ivpu_hw_37xx.c index 5c0246b9e522..4ccf1994b97a 100644 --- a/drivers/accel/ivpu/ivpu_hw_37xx.c +++ b/drivers/accel/ivpu/ivpu_hw_37xx.c @@ -502,6 +502,16 @@ static int ivpu_boot_pwr_domain_enable(struct ivpu_device *vdev) return ret; } +sta...
ce3e112e7ae854249d8755906acc5f27e1542114
Analyze and fix the following issue in the Linux kernel code: drm/bridge: tpd12s015: Drop buggy __exit annotation for remove function
Problem Details: With tpd12s015_remove() marked with __exit this function is discarded when the driver is compiled as a built-in. The result is that when the driver unbinds there is no cleanup done which results in resource leakage or worse. Fixes: cff5e6f7e83f ("drm/bridge: Add driver for the TI TPD12S015 HDMI level ...
```diff diff --git a/drivers/gpu/drm/bridge/ti-tpd12s015.c b/drivers/gpu/drm/bridge/ti-tpd12s015.c index e0e015243a60..b588fea12502 100644 --- a/drivers/gpu/drm/bridge/ti-tpd12s015.c +++ b/drivers/gpu/drm/bridge/ti-tpd12s015.c @@ -179,7 +179,7 @@ static int tpd12s015_probe(struct platform_device *pdev) return 0; } ...
a6584711e64d9d12ab79a450ec3628fd35e4f476
Analyze and fix the following issue in the Linux kernel code: platform/x86: intel_telemetry: Fix kernel doc descriptions
Problem Details: LKP found issues with a kernel doc in the driver: core.c:116: warning: Function parameter or member 'ioss_evtconfig' not described in 'telemetry_update_events' core.c:188: warning: Function parameter or member 'ioss_evtconfig' not described in 'telemetry_get_eventconfig' It looks like it were copy'n'...
```diff diff --git a/drivers/platform/x86/intel/telemetry/core.c b/drivers/platform/x86/intel/telemetry/core.c index fdf55b5d6948..e4be40f73eeb 100644 --- a/drivers/platform/x86/intel/telemetry/core.c +++ b/drivers/platform/x86/intel/telemetry/core.c @@ -102,7 +102,7 @@ static const struct telemetry_core_ops telm_defpl...
902d75cdf0cf0a3fb58550089ee519abf12566f5
Analyze and fix the following issue in the Linux kernel code: LoongArch: Silence the boot warning about 'nokaslr'
Problem Details: The kernel parameter 'nokaslr' is handled before start_kernel(), so we don't need early_param() to mark it technically. But it can cause a boot warning as follows: Unknown kernel command line parameters "nokaslr", will be passed to user space. When we use 'init=/bin/bash', 'nokaslr' which passed to u...
```diff diff --git a/arch/loongarch/kernel/relocate.c b/arch/loongarch/kernel/relocate.c index 288b739ca88d..1acfa704c8d0 100644 --- a/arch/loongarch/kernel/relocate.c +++ b/arch/loongarch/kernel/relocate.c @@ -102,6 +102,14 @@ static inline __init unsigned long get_random_boot(void) return hash; } +static int __i...
6c15808d9b7640c3209d53cd2d8d56cfbf9f7175
Analyze and fix the following issue in the Linux kernel code: drm/msm/gem: Demote allocations to __GFP_NOWARN
Problem Details: For allocations with userspace controlled size, we should not warn on allocation failure. Fixes KASAN splat: WARNING: CPU: 6 PID: 29557 at mm/page_alloc.c:5398 __alloc_pages+0x160c/0x2204 Modules linked in: bridge stp llc hci_vhci tun veth xt_cgroup uinput xt_MASQUERADE rfcomm ip6table_nat fuse...
```diff diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 207b6ba1565d..30d72191cee6 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -43,7 +43,7 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev, if (sz > ...
b2acb89af1a400be721bcb14f137aa22b509caba
Analyze and fix the following issue in the Linux kernel code: drm/msm/gem: Demote userspace errors to DRM_UT_DRIVER
Problem Details: Error messages resulting from incorrect usage of the kernel uabi should not spam dmesg by default. But it is useful to enable them to debug userspace. So demote to DRM_UT_DRIVER. Signed-off-by: Rob Clark <robdclark@chromium.org> Patchwork: https://patchwork.freedesktop.org/patch/564189/
```diff diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 32303cc8e646..175ee4ab8a6f 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -226,9 +226,9 @@ static struct page **msm_gem_pin_pages_locked(struct drm_gem_object *obj, msm_gem_assert_locked(obj);...
f40bfd1679446b22d321e64a1fa98b7d07d2be08
Analyze and fix the following issue in the Linux kernel code: selftests/bpf: fix bpf_loop_bench for new callback verification scheme
Problem Details: This is a preparatory change. A follow-up patch "bpf: verify callbacks as if they are called unknown number of times" changes logic for callbacks handling. While previously callbacks were verified as a single function call, new scheme takes into account that callbacks could be executed unknown number o...
```diff diff --git a/tools/testing/selftests/bpf/progs/bpf_loop_bench.c b/tools/testing/selftests/bpf/progs/bpf_loop_bench.c index 4ce76eb064c4..d461746fd3c1 100644 --- a/tools/testing/selftests/bpf/progs/bpf_loop_bench.c +++ b/tools/testing/selftests/bpf/progs/bpf_loop_bench.c @@ -15,13 +15,16 @@ static int empty_call...
9902cb999e4e913d98e8afe4b36c08e4a793e1ce
Analyze and fix the following issue in the Linux kernel code: drm/msm/gem: Add metadata
Problem Details: The EXT_external_objects extension is a bit awkward as it doesn't pass explicit modifiers, leaving the importer to guess with incomplete information. In the case of vk (turnip) exporting and gl (freedreno) importing, the "OPTIMAL_TILING_EXT" layout depends on VkImageCreateInfo flags (among other thing...
```diff diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index d751d2023f84..75d60aab5780 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -37,9 +37,10 @@ * - 1.9.0 - Add MSM_SUBMIT_FENCE_SN_IN * - 1.10.0 - Add MSM_SUBMIT_BO_NO_IMPLICIT * - 1.11.0 - Add w...
d1912f6972b857e63577e8094f5f1242d9fe3c7d
Analyze and fix the following issue in the Linux kernel code: drm/msm: Small uabi fixes
Problem Details: Correct the minor version exposed and error return value for MSM_INFO_GET_NAME. Signed-off-by: Rob Clark <robdclark@chromium.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Patchwork: https://patchwork.freedesktop.org/patch/566155/
```diff diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 2aae7d107f33..d751d2023f84 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -39,7 +39,7 @@ * - 1.11.0 - Add wait boost (MSM_WAIT_FENCE_BOOST, MSM_PREP_BOOST) */ #define MSM_VERSION_MAJOR 1 -#de...
50a5988a7a540fb1ad4e620e1bbf11cc646e3dc7
Analyze and fix the following issue in the Linux kernel code: selftests: tc-testing: move back to per test ns setup
Problem Details: Surprisingly in kernel configs with most of the debug knobs turned on, pre-allocating the test resources makes tdc run much slower overall than when allocating resources on a per test basis. As these knobs are used in kselftests in downstream CIs, let's go back to the old way of doing things to avoid ...
```diff diff --git a/tools/testing/selftests/tc-testing/plugin-lib/nsPlugin.py b/tools/testing/selftests/tc-testing/plugin-lib/nsPlugin.py index 62974bd3a4a5..2b8cbfdf1083 100644 --- a/tools/testing/selftests/tc-testing/plugin-lib/nsPlugin.py +++ b/tools/testing/selftests/tc-testing/plugin-lib/nsPlugin.py @@ -17,44 +17...
5e63c5ef7a99d4cc13ddb4964bdeaff45c0364a0
Analyze and fix the following issue in the Linux kernel code: dt-bindings: net: xlnx,axi-ethernet: Introduce DMA support
Problem Details: Xilinx 1G/2.5G Ethernet Subsystem provides 32-bit AXI4-Stream buses to move transmit and receive Ethernet data to and from the subsystem. These buses are designed to be used with an AXI Direct Memory Access(DMA) IP or AXI Multichannel Direct Memory Access (MCDMA) IP core, AXI4-Stream Data FIFO, or any...
```diff diff --git a/Documentation/devicetree/bindings/net/xlnx,axi-ethernet.yaml b/Documentation/devicetree/bindings/net/xlnx,axi-ethernet.yaml index 1d33d80af11c..bbe89ea9590c 100644 --- a/Documentation/devicetree/bindings/net/xlnx,axi-ethernet.yaml +++ b/Documentation/devicetree/bindings/net/xlnx,axi-ethernet.yaml @...
98594181944daa201481ad63242806beb7c89ff4
Analyze and fix the following issue in the Linux kernel code: iommufd/selftest: Fix _test_mock_dirty_bitmaps()
Problem Details: The ASSERT_EQ() macro sneakily expands to two statements, so the loop here needs braces to ensure it captures both and actually terminates the test upon failure. Where these tests are currently failing on my arm64 machine, this reduces the number of logged lines from a rather unreasonable ~197,000 down...
```diff diff --git a/tools/testing/selftests/iommu/iommufd_utils.h b/tools/testing/selftests/iommu/iommufd_utils.h index 050e9751321c..ad9202335656 100644 --- a/tools/testing/selftests/iommu/iommufd_utils.h +++ b/tools/testing/selftests/iommu/iommufd_utils.h @@ -293,15 +293,13 @@ static int _test_mock_dirty_bitmaps(int...
4bea53b9c7c72fd12a0ceebe88a71723c0a514b8
Analyze and fix the following issue in the Linux kernel code: drm/msm: Reduce fallout of fence signaling vs reclaim hangs
Problem Details: Until various PM devfreq/QoS and interconnect patches land, we could potentially trigger reclaim from gpu scheduler thread, and under enough memory pressure that could trigger a sort of deadlock. Eventually the wait will timeout and we'll move on to consider other GEM objects. But given that there is...
```diff diff --git a/drivers/gpu/drm/msm/msm_gem_shrinker.c b/drivers/gpu/drm/msm/msm_gem_shrinker.c index 5a7d48c02c4b..07ca4ddfe4e3 100644 --- a/drivers/gpu/drm/msm/msm_gem_shrinker.c +++ b/drivers/gpu/drm/msm/msm_gem_shrinker.c @@ -75,7 +75,7 @@ static bool wait_for_idle(struct drm_gem_object *obj) { enum dma_re...
5f35a624c1e30b5bae5023b3c256e94e0ad4f806
Analyze and fix the following issue in the Linux kernel code: drm/nouveau/fence:: fix warning directly dereferencing a rcu pointer
Problem Details: Fix a sparse warning with this message "warning:dereference of noderef expression". In this context it means we are dereferencing a __rcu tagged pointer directly. We should not be directly dereferencing a rcu pointer. To get a normal (non __rcu tagged pointer) from a __rcu tagged pointer we are using ...
```diff diff --git a/drivers/gpu/drm/nouveau/nv04_fence.c b/drivers/gpu/drm/nouveau/nv04_fence.c index 5b71a5a5cd85..cdbc75e3d1f6 100644 --- a/drivers/gpu/drm/nouveau/nv04_fence.c +++ b/drivers/gpu/drm/nouveau/nv04_fence.c @@ -39,7 +39,7 @@ struct nv04_fence_priv { static int nv04_fence_emit(struct nouveau_fence *fen...
0c9a768de64d24e38e27652b8c273725ccc31916
Analyze and fix the following issue in the Linux kernel code: powerpc/pasemi: mark pas_shutdown() static
Problem Details: Allmodconfig builds show a warning about one function that is accidentally marked global: arch/powerpc/platforms/pasemi/setup.c:67:6: error: no previous prototype for 'pas_shutdown' [-Werror=missing-prototypes] Fixes: 656fdf3ad8e0 ("powerpc/pasemi: Add Nemo board device init code.") Signed-off-by: Ar...
```diff diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c index ef985ba2bf21..0761d98e5be3 100644 --- a/arch/powerpc/platforms/pasemi/setup.c +++ b/arch/powerpc/platforms/pasemi/setup.c @@ -64,7 +64,7 @@ static void __noreturn pas_restart(char *cmd) } #ifdef CONFIG_PPC_PASEM...
04c40eed3f7ac48ddaf20104489510e743a53c47
Analyze and fix the following issue in the Linux kernel code: powerpc/ps3: move udbg_shutdown_ps3gelic prototype
Problem Details: Allmodconfig kernels produce a missing-prototypes warning: arch/powerpc/platforms/ps3/gelic_udbg.c:239:6: error: no previous prototype for 'udbg_shutdown_ps3gelic' [-Werror=missing-prototypes] Move the declaration from a local header to asm/ps3.h where it can be seen from both the caller and the defi...
```diff diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug index ea4033abc07d..8c80b154e814 100644 --- a/arch/powerpc/Kconfig.debug +++ b/arch/powerpc/Kconfig.debug @@ -271,7 +271,6 @@ config PPC_EARLY_DEBUG_USBGECKO config PPC_EARLY_DEBUG_PS3GELIC bool "Early debugging through the PS3 Ethernet por...
71cade82f2b553a74d046c015c986f2df165696f
Analyze and fix the following issue in the Linux kernel code: eventfs: Do not invalidate dentry in create_file/dir_dentry()
Problem Details: With the call to simple_recursive_removal() on the entire eventfs sub system when the directory is removed, it performs the d_invalidate on all the dentries when it is removed. There's no need to do clean ups when a dentry is being created while the directory is being deleted. As dentries are cleaned ...
```diff diff --git a/fs/tracefs/event_inode.c b/fs/tracefs/event_inode.c index f239b2b507a4..3eb6c622a74d 100644 --- a/fs/tracefs/event_inode.c +++ b/fs/tracefs/event_inode.c @@ -326,7 +326,6 @@ create_file_dentry(struct eventfs_inode *ei, int idx, struct eventfs_attr *attr = NULL; struct dentry **e_dentry = &ei->d...
88903daecacf03b1e5636e1b5f18bda5b07030fc
Analyze and fix the following issue in the Linux kernel code: eventfs: Remove expectation that ei->is_freed means ei->dentry == NULL
Problem Details: The logic to free the eventfs_inode (ei) use to set is_freed and clear the "dentry" field under the eventfs_mutex. But that changed when a race was found where the ei->dentry needed to be cleared when the last dput() was called on it. But there was still logic that checked if ei->dentry was not NULL an...
```diff diff --git a/fs/tracefs/event_inode.c b/fs/tracefs/event_inode.c index f8a594a50ae6..f239b2b507a4 100644 --- a/fs/tracefs/event_inode.c +++ b/fs/tracefs/event_inode.c @@ -27,16 +27,16 @@ /* * eventfs_mutex protects the eventfs_inode (ei) dentry. Any access * to the ei->dentry must be done under this mutex ...
d7802b734fe33e781437151033032d28291b809b
Analyze and fix the following issue in the Linux kernel code: fs: add missing @mp parameter documentation
Problem Details: Fix the W=1 build warning: ../fs/namespace.c:3050: warning: Function parameter or member 'mp' not described in 'can_move_mount_beneath' Signed-off-by: Christian Brauner <brauner@kernel.org>
```diff diff --git a/fs/namespace.c b/fs/namespace.c index fbf0e596fcd3..b899cbbe24d9 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -3026,6 +3026,7 @@ static inline bool path_overmounted(const struct path *path) * can_move_mount_beneath - check that we can mount beneath the top mount * @from: mount to mount b...
3171e46d677a668eed3086da78671f1e4f5b8405
Analyze and fix the following issue in the Linux kernel code: PCI: Avoid potential out-of-bounds read in pci_dev_for_each_resource()
Problem Details: Coverity complains that pointer in the pci_dev_for_each_resource() may be wrong, i.e., might be used for the out-of-bounds read. There is no actual issue right now because we have another check afterwards and the out-of-bounds read is not being performed. In any case it's better code with this fixed, ...
```diff diff --git a/include/linux/pci.h b/include/linux/pci.h index 60ca768bc867..4ebecc7896ef 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -2127,14 +2127,14 @@ int pci_iobar_pfn(struct pci_dev *pdev, int bar, struct vm_area_struct *vma); (pci_resource_end((dev), (bar)) ? \ resource_size(pci_...
d6fef34ee4d102be448146f24caf96d7b4a05401
Analyze and fix the following issue in the Linux kernel code: io_uring: fix off-by one bvec index
Problem Details: If the offset equals the bv_len of the first registered bvec, then the request does not include any of that first bvec. Skip it so that drivers don't have to deal with a zero length bvec, which was observed to break NVMe's PRP list creation. Cc: stable@vger.kernel.org Fixes: bd11b3a391e3 ("io_uring: d...
```diff diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c index 7034be555334..f521c5965a93 100644 --- a/io_uring/rsrc.c +++ b/io_uring/rsrc.c @@ -1258,7 +1258,7 @@ int io_import_fixed(int ddir, struct iov_iter *iter, */ const struct bio_vec *bvec = imu->bvec; - if (offset <= bvec->bv_len) { + if (offset < bvec-...
9a000a72af75886e5de13f4edef7f0d788622e7d
Analyze and fix the following issue in the Linux kernel code: PCI/P2PDMA: Remove reference to pci_p2pdma_map_sg()
Problem Details: Update Documentation/driver-api/pci/p2pdma.rst doc and remove references to obsolete p2pdma mapping functions. Fixes: 0d06132fc84b ("PCI/P2PDMA: Remove pci_p2pdma_[un]map_sg()") Link: https://lore.kernel.org/r/20231113180325.444692-1-tstruk@gmail.com Signed-off-by: Tadeusz Struk <tstruk@gigaio.com> Si...
```diff diff --git a/Documentation/driver-api/pci/p2pdma.rst b/Documentation/driver-api/pci/p2pdma.rst index 44deb52beeb4..d0b241628cf1 100644 --- a/Documentation/driver-api/pci/p2pdma.rst +++ b/Documentation/driver-api/pci/p2pdma.rst @@ -83,19 +83,9 @@ this to include other types of resources like doorbells. Client D...
8e4ece6889a5b1836b6a135827ac831a5350602a
Analyze and fix the following issue in the Linux kernel code: KVM: arm64: GICv4: Do not perform a map to a mapped vLPI
Problem Details: Before performing a map, let's check whether the vLPI has been mapped. Fixes: 196b136498b3 ("KVM: arm/arm64: GICv4: Wire mapping/unmapping of VLPIs in VFIO irq bypass") Signed-off-by: Kunkun Jiang <jiangkunkun@huawei.com> Acked-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Zenghui Yu <yuzenghui@huawe...
```diff diff --git a/arch/arm64/kvm/vgic/vgic-v4.c b/arch/arm64/kvm/vgic/vgic-v4.c index 339a55194b2c..74a67ad87f29 100644 --- a/arch/arm64/kvm/vgic/vgic-v4.c +++ b/arch/arm64/kvm/vgic/vgic-v4.c @@ -436,6 +436,10 @@ int kvm_vgic_v4_set_forwarding(struct kvm *kvm, int virq, if (ret) goto out; + /* Silently exit i...
db46cd1e0426f52999d50fa72cfa97fa39952885
Analyze and fix the following issue in the Linux kernel code: s390/dasd: protect device queue against concurrent access
Problem Details: In dasd_profile_start() the amount of requests on the device queue are counted. The access to the device queue is unprotected against concurrent access. With a lot of parallel I/O, especially with alias devices enabled, the device queue can change while dasd_profile_start() is accessing the queue. In t...
```diff diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index d440319a7945..833cfab7d877 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -676,18 +676,20 @@ static void dasd_profile_start(struct dasd_block *block, * we count each request only once. */ device = cqr->st...
024ee930cb3c9ae49e4266aee89cfde0ebb407e1
Analyze and fix the following issue in the Linux kernel code: bpf: Fix dev's rx stats for bpf_redirect_peer traffic
Problem Details: Traffic redirected by bpf_redirect_peer() (used by recent CNIs like Cilium) is not accounted for in the RX stats of supported devices (that is, veth and netkit), confusing user space metrics collectors such as cAdvisor [0], as reported by Youlun. Fix it by calling dev_sw_netstats_rx_add() in skb_do_re...
```diff diff --git a/net/core/dev.c b/net/core/dev.c index 0cc6e283edba..c879246be48d 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -10055,6 +10055,14 @@ static int netdev_do_alloc_pcpu_stats(struct net_device *dev) { void __percpu *v; + /* Drivers implementing ndo_get_peer_dev must support tstat + * accoun...
6f2684bf2b4460c84d0d34612a939f78b96b03fc
Analyze and fix the following issue in the Linux kernel code: veth: Use tstats per-CPU traffic counters
Problem Details: Currently veth devices use the lstats per-CPU traffic counters, which only cover TX traffic. veth_get_stats64() actually populates RX stats of a veth device from its peer's TX counters, based on the assumption that a veth device can _only_ receive packets from its peer, which is no longer true: For ex...
```diff diff --git a/drivers/net/veth.c b/drivers/net/veth.c index ac030c241d1a..6cc352296c67 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -373,7 +373,7 @@ static netdev_tx_t veth_xmit(struct sk_buff *skb, struct net_device *dev) skb_tx_timestamp(skb); if (likely(veth_forward_skb(rcv, skb, rq, use_na...
53f2bca2609237f910531f2c1a7779b16ce7952d
Analyze and fix the following issue in the Linux kernel code: block/null_blk: Fix double blk_mq_start_request() warning
Problem Details: When CONFIG_BLK_DEV_NULL_BLK_FAULT_INJECTION is enabled, null_queue_rq() would return BLK_STS_RESOURCE or BLK_STS_DEV_RESOURCE for the request, which has been marked as MQ_RQ_IN_FLIGHT by blk_mq_start_request(). Then null_queue_rqs() put these requests in the rqlist, return back to the block layer cor...
```diff diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c index 22a3cf7f32e2..3021d58ca51c 100644 --- a/drivers/block/null_blk/main.c +++ b/drivers/block/null_blk/main.c @@ -1464,19 +1464,13 @@ blk_status_t null_process_cmd(struct nullb_cmd *cmd, enum req_op op, return BLK_STS_OK; } -stati...
11b9d0b4999705105d1fb7f0e8ac969e0f41b1b8
Analyze and fix the following issue in the Linux kernel code: nvmet-tcp: always initialize tls_handshake_tmo_work
Problem Details: The TLS handshake timeout work item should always be initialized to avoid a crash when cancelling the workqueue. Fixes: 675b453e0241 ("nvmet-tcp: enable TLS handshake upcall") Suggested-by: Maurizio Lombardi <mlombard@redhat.com> Signed-off-by: Hannes Reinecke <hare@suse.de> Tested-by: Shin'ichiro Kaw...
```diff diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c index 92b74d0b8686..4cc27856aa8f 100644 --- a/drivers/nvme/target/tcp.c +++ b/drivers/nvme/target/tcp.c @@ -1854,6 +1854,8 @@ static int nvmet_tcp_tls_handshake(struct nvmet_tcp_queue *queue) } return ret; } +#else +static void nvmet_tcp_tl...
1c22e0295a5eb571c27b53c7371f95699ef705ff
Analyze and fix the following issue in the Linux kernel code: nvmet: nul-terminate the NQNs passed in the connect command
Problem Details: The host and subsystem NQNs are passed in the connect command payload and interpreted as nul-terminated strings. Ensure they actually are nul-terminated before using them. Fixes: a07b4970f464 "nvmet: add a generic NVMe target") Reported-by: Alon Zahavi <zahavi.alon@gmail.com> Reviewed-by: Chaitanya K...
```diff diff --git a/drivers/nvme/target/fabrics-cmd.c b/drivers/nvme/target/fabrics-cmd.c index 43b5bd8bb6a5..d8da840a1c0e 100644 --- a/drivers/nvme/target/fabrics-cmd.c +++ b/drivers/nvme/target/fabrics-cmd.c @@ -244,6 +244,8 @@ static void nvmet_execute_admin_connect(struct nvmet_req *req) goto out; } + d->su...
c7ca9757bda35ff9ce27ab42f2cb8b84d983e6ad
Analyze and fix the following issue in the Linux kernel code: nvme: blank out authentication fabrics options if not configured
Problem Details: If the config option NVME_HOST_AUTH is not selected we should not accept the corresponding fabrics options. This allows userspace to detect if NVMe authentication has been enabled for the kernel. Cc: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com> Fixes: f50fff73d620 ("nvme: implement In-Band authe...
```diff diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c index 4673ead69c5f..aa88606a44c4 100644 --- a/drivers/nvme/host/fabrics.c +++ b/drivers/nvme/host/fabrics.c @@ -667,8 +667,10 @@ static const match_table_t opt_tokens = { #endif { NVMF_OPT_FAIL_FAST_TMO, "fast_io_fail_tmo=%d" }, { NVMF_...
23441536b63677cb2ed9b1637d8ca70315e44bd0
Analyze and fix the following issue in the Linux kernel code: nvme-tcp: only evaluate 'tls' option if TLS is selected
Problem Details: We only need to evaluate the 'tls' connect option if TLS is enabled; otherwise we might be getting a link error. Fixes: 706add13676d ("nvme: keyring: fix conditional compilation") Reported-by: kernel test robot <yujie.liu@intel.com> Closes: https://lore.kernel.org/r/202311140426.0eHrTXBr-lkp@intel.com...
```diff diff --git a/drivers/nvme/host/tcp.c b/drivers/nvme/host/tcp.c index 89661a9cf850..6ed794815517 100644 --- a/drivers/nvme/host/tcp.c +++ b/drivers/nvme/host/tcp.c @@ -1916,7 +1916,7 @@ static int nvme_tcp_alloc_admin_queue(struct nvme_ctrl *ctrl) int ret; key_serial_t pskid = 0; - if (ctrl->opts->tls) { +...
af524e9dcb43f5914cecb3a3f4b79081d2e3f7f8
Analyze and fix the following issue in the Linux kernel code: ASoC: nau8810: Fix incorrect type in assignment and cast to restricted __be16
Problem Details: This issue is reproduced when W=1 build in compiler gcc-12. The following are sparse warnings: sound/soc/codecs/nau8810.c:183:25: sparse: warning: incorrect type in assignment sound/soc/codecs/nau8810.c:183:25: sparse: expected int sound/soc/codecs/nau8810.c:183:25: sparse: got restricted __be16 sound...
```diff diff --git a/sound/soc/codecs/nau8810.c b/sound/soc/codecs/nau8810.c index 47f000cd4d99..97a54059474c 100644 --- a/sound/soc/codecs/nau8810.c +++ b/sound/soc/codecs/nau8810.c @@ -169,6 +169,7 @@ static int nau8810_eq_get(struct snd_kcontrol *kcontrol, struct soc_bytes_ext *params = (void *)kcontrol->private_v...
c2da049f419417808466c529999170f5c3ef7d3d
Analyze and fix the following issue in the Linux kernel code: nbd: fix null-ptr-dereference while accessing 'nbd->config'
Problem Details: Memory reordering may occur in nbd_genl_connect(), causing config_refs to be set to 1 while nbd->config is still empty. Opening nbd at this time will cause null-ptr-dereference. T1 T2 nbd_open nbd_get_config_unlocked nbd_genl_connect ...
```diff diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index daaf8805e876..3f03cb3dc33c 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -397,8 +397,16 @@ static u32 req_to_nbd_cmd_type(struct request *req) static struct nbd_config *nbd_get_config_unlocked(struct nbd_device *nbd) { - if (refcou...
3123ac77923341774ca3ad1196ad20bb0732bf70
Analyze and fix the following issue in the Linux kernel code: nbd: factor out a helper to get nbd_config without holding 'config_lock'
Problem Details: There are no functional changes, just to make code cleaner and prepare to fix null-ptr-dereference while accessing 'nbd->config'. Signed-off-by: Li Nan <linan122@huawei.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Link: https://lore.kernel.org/r/20231116162316.1740402-3-linan666@huaweicloud.co...
```diff diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 02f844832d91..daaf8805e876 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -395,6 +395,14 @@ static u32 req_to_nbd_cmd_type(struct request *req) } } +static struct nbd_config *nbd_get_config_unlocked(struct nbd_device *nbd) +{ + if ...
1b59860540a4018e8071dc18d4893ec389506b7d
Analyze and fix the following issue in the Linux kernel code: nbd: fold nbd config initialization into nbd_alloc_config()
Problem Details: There are no functional changes, make the code cleaner and prepare to fix null-ptr-dereference while accessing 'nbd->config'. Signed-off-by: Li Nan <linan122@huawei.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Link: https://lore.kernel.org/r/20231116162316.1740402-2-linan666@huaweicloud.com Si...
```diff diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 855fdf5c3b4e..02f844832d91 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1530,17 +1530,20 @@ static int nbd_ioctl(struct block_device *bdev, blk_mode_t mode, return error; } -static struct nbd_config *nbd_alloc_config(void) +stat...
b85e2dab33ce467e8dcf1cb6c0c587132ff17f56
Analyze and fix the following issue in the Linux kernel code: PM: tools: Fix sleepgraph syntax error
Problem Details: The sleepgraph tool currently fails: File "/usr/bin/sleepgraph", line 4155 or re.match('psci: CPU(?P<cpu>[0-9]*) killed.*', msg)): ^ SyntaxError: unmatched ')' Fixes: 34ea427e01ea ("PM: tools: sleepgraph: Recognize "CPU killed" messages")...
```diff diff --git a/tools/power/pm-graph/sleepgraph.py b/tools/power/pm-graph/sleepgraph.py index 4a356a706785..40ad221e8881 100755 --- a/tools/power/pm-graph/sleepgraph.py +++ b/tools/power/pm-graph/sleepgraph.py @@ -4151,7 +4151,7 @@ def parseKernelLog(data): elif(re.match('Enabling non-boot CPUs .*', msg)): ...
c7add369b4cc599db336ca67578a052c5b0f0891
Analyze and fix the following issue in the Linux kernel code: ACPI: video: Drop should_check_lcd_flag()
Problem Details: Since commit 3dbc80a3e4c5 ("ACPI: video: Make backlight class device registration a separate step (v2)") acpi_video# backlights are no longer automatically registered. Instead they now only get registered when the GPU/KMS driver calls acpi_video_register_backlight() which it only does when it has detec...
```diff diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c index d321ca7160d9..5eded14f8853 100644 --- a/drivers/acpi/acpi_video.c +++ b/drivers/acpi/acpi_video.c @@ -67,7 +67,7 @@ MODULE_PARM_DESC(hw_changes_brightness, static bool device_id_scheme = false; module_param(device_id_scheme, bool, 0444);...
bd911485294a6f0596e4592ed442438015cffc8a
Analyze and fix the following issue in the Linux kernel code: ACPI: resource: Skip IRQ override on ASUS ExpertBook B1402CVA
Problem Details: Like various other ASUS ExpertBook-s, the ASUS ExpertBook B1402CVA has an ACPI DSDT table that describes IRQ 1 as ActiveLow while the kernel overrides it to EdgeHigh. This prevents the keyboard from working. To fix this issue, add this laptop to the skip_override_table so that the kernel does not over...
```diff diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 15a3bdbd0755..9bd9f79cd409 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -447,6 +447,13 @@ static const struct dmi_system_id irq1_level_low_skip_override[] = { DMI_MATCH(DMI_BOARD_NAME, "B1402CBA"), }, }, + { +...
a32324280474b8279ac28aee672f45de6ab755a5
Analyze and fix the following issue in the Linux kernel code: dma-buf: 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]. Additionally, it returns the size of the source string, not the resulting size of the destination ...
```diff diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index 21916bba77d5..8fe5aa67b167 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -46,12 +46,12 @@ static char *dmabuffs_dname(struct dentry *dentry, char *buffer, int buflen) { struct dma_buf *dmabuf; char name[DMA...
c93695494606326d7fd72b46a2a657139ccb0dec
Analyze and fix the following issue in the Linux kernel code: ACPI: video: Use acpi_device_fix_up_power_children()
Problem Details: Commit 89c290ea7589 ("ACPI: video: Put ACPI video and its child devices into D0 on boot") introduced calling acpi_device_fix_up_power_extended() on the video card for which the ACPI video bus is the companion device. This unnecessarily touches the power-state of the GPU itself, while the issue it trie...
```diff diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c index 0b7a01f38b65..d321ca7160d9 100644 --- a/drivers/acpi/acpi_video.c +++ b/drivers/acpi/acpi_video.c @@ -2031,7 +2031,7 @@ static int acpi_video_bus_add(struct acpi_device *device) * HP ZBook Fury 16 G10 requires ACPI video's child devices...
37ba91a82e3b9de35f64348c62b5ec7d74e3a41c
Analyze and fix the following issue in the Linux kernel code: ACPI: PM: Add acpi_device_fix_up_power_children() function
Problem Details: In some cases it is necessary to fix-up the power-state of an ACPI device's children without touching the ACPI device itself add a new acpi_device_fix_up_power_children() function for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Cc: 6.6+ <stable@vger.kernel.org> # 6.6+ Signed-off-by: Rafae...
```diff diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index f007116a8427..3b4d048c4941 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -397,6 +397,19 @@ void acpi_device_fix_up_power_extended(struct acpi_device *adev) } EXPORT_SYMBOL_GPL(acpi_device_fix_up_power_extended); ...
3eba5e0b2422aec3c9e79822029599961fdcab97
Analyze and fix the following issue in the Linux kernel code: bcache: avoid NULL checking to c->root in run_cache_set()
Problem Details: In run_cache_set() after c->root returned from bch_btree_node_get(), it is checked by IS_ERR_OR_NULL(). Indeed it is unncessary to check NULL because bch_btree_node_get() will not return NULL pointer to caller. This patch replaces IS_ERR_OR_NULL() by IS_ERR() for the above reason. Signed-off-by: Coly...
```diff diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index c7ecc7058d77..bfe1685dbae5 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -2018,7 +2018,7 @@ static int run_cache_set(struct cache_set *c) c->root = bch_btree_node_get(c, NULL, k, j->btree_level, ...
31f5b956a197d4ec25c8a07cb3a2ab69d0c0b82f
Analyze and fix the following issue in the Linux kernel code: bcache: add code comments for bch_btree_node_get() and __bch_btree_node_alloc()
Problem Details: This patch adds code comments to bch_btree_node_get() and __bch_btree_node_alloc() that NULL pointer will not be returned and it is unnecessary to check NULL pointer by the callers of these routines. Signed-off-by: Coly Li <colyli@suse.de> Link: https://lore.kernel.org/r/20231120052503.6122-10-colyli@...
```diff diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c index 79f1fa4a0d55..de3019972b35 100644 --- a/drivers/md/bcache/btree.c +++ b/drivers/md/bcache/btree.c @@ -1000,6 +1000,9 @@ err: * * The btree node will have either a read or a write lock held, depending on * level and op->lock. + * + * ...
f72f4312d4388376fc8a1f6cf37cb21a0d41758b
Analyze and fix the following issue in the Linux kernel code: bcache: replace a mistaken IS_ERR() by IS_ERR_OR_NULL() in btree_gc_coalesce()
Problem Details: Commit 028ddcac477b ("bcache: Remove unnecessary NULL point check in node allocations") do the following change inside btree_gc_coalesce(), 31 @@ -1340,7 +1340,7 @@ static int btree_gc_coalesce( 32 memset(new_nodes, 0, sizeof(new_nodes)); 33 closure_init_stack(&cl); 34 35 - while...
```diff diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c index de8d552201dc..79f1fa4a0d55 100644 --- a/drivers/md/bcache/btree.c +++ b/drivers/md/bcache/btree.c @@ -1368,7 +1368,7 @@ static int btree_gc_coalesce(struct btree *b, struct btree_op *op, memset(new_nodes, 0, sizeof(new_nodes)); closure...
2faac25d7958c4761bb8cec54adb79f806783ad6
Analyze and fix the following issue in the Linux kernel code: bcache: fixup multi-threaded bch_sectors_dirty_init() wake-up race
Problem Details: We get a kernel crash about "unable to handle kernel paging request": ```dmesg [368033.032005] BUG: unable to handle kernel paging request at ffffffffad9ae4b5 [368033.032007] PGD fc3a0d067 P4D fc3a0d067 PUD fc3a0e063 PMD 8000000fc38000e1 [368033.032012] Oops: 0003 [#1] SMP PTI [368033.032015] CPU: 23 ...
```diff diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c index a1d760916246..3accfdaee6b1 100644 --- a/drivers/md/bcache/writeback.c +++ b/drivers/md/bcache/writeback.c @@ -1025,17 +1025,18 @@ retry_lock: if (atomic_read(&state.enough)) break; + atomic_inc(&state.started); state.i...
e34820f984512b433ee1fc291417e60c47d56727
Analyze and fix the following issue in the Linux kernel code: bcache: fixup lock c->root error
Problem Details: We had a problem with io hung because it was waiting for c->root to release the lock. crash> cache_set.root -l cache_set.list ffffa03fde4c0050 root = 0xffff802ef454c800 crash> btree -o 0xffff802ef454c800 | grep rw_semaphore [ffff802ef454c858] struct rw_semaphore lock; crash> struct rw_semaphore ff...
```diff diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c index 77fb72ac6b81..a1d760916246 100644 --- a/drivers/md/bcache/writeback.c +++ b/drivers/md/bcache/writeback.c @@ -977,14 +977,22 @@ static int bch_btre_dirty_init_thread_nr(void) void bch_sectors_dirty_init(struct bcache_device *d) {...
7cc47e64d3d69786a2711a4767e26b26ba63d7ed
Analyze and fix the following issue in the Linux kernel code: bcache: fixup init dirty data errors
Problem Details: We found that after long run, the dirty_data of the bcache device will have errors. This error cannot be eliminated unless re-register. We also found that reattach after detach, this error can accumulate. In bch_sectors_dirty_init(), all inode <= d->id keys will be recounted again. This is wrong, we ...
```diff diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c index c3e872e0a6f2..77fb72ac6b81 100644 --- a/drivers/md/bcache/writeback.c +++ b/drivers/md/bcache/writeback.c @@ -991,8 +991,11 @@ void bch_sectors_dirty_init(struct bcache_device *d) op.count = 0; for_each_key_filter(&c->root-...
2c7f497ac274a14330208b18f6f734000868ebf9
Analyze and fix the following issue in the Linux kernel code: bcache: prevent potential division by zero error
Problem Details: In SHOW(), the variable 'n' is of type 'size_t.' While there is a conditional check to verify that 'n' is not equal to zero before executing the 'do_div' macro, concerns arise regarding potential division by zero error in 64-bit environments. The concern arises when 'n' is 64 bits in size, greater tha...
```diff diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c index 45d8af755de6..a438efb66069 100644 --- a/drivers/md/bcache/sysfs.c +++ b/drivers/md/bcache/sysfs.c @@ -1104,7 +1104,7 @@ SHOW(__bch_cache) sum += INITIAL_PRIO - cached[i]; if (n) - do_div(sum, n); + sum = div64_u64(sum, n); ...
bb0a05acd6121ff0e810b44fdc24dbdfaa46b642
Analyze and fix the following issue in the Linux kernel code: drm/rockchip: vop: Fix color for RGB888/BGR888 format on VOP full
Problem Details: Use of DRM_FORMAT_RGB888 and DRM_FORMAT_BGR888 on e.g. RK3288, RK3328 and RK3399 result in wrong colors being displayed. The issue can be observed using modetest: modetest -s <connector_id>@<crtc_id>:1920x1080-60@RG24 modetest -s <connector_id>@<crtc_id>:1920x1080-60@BG24 Vendor 4.4 kernel apply...
```diff diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 066299894d04..a13473b2d54c 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -247,14 +247,22 @@ static inline void vop_cfg_done(struct vop *vop...
8479063f1fbee201a8739130e816cc331b675838
Analyze and fix the following issue in the Linux kernel code: io_uring/fs: consider link->flags when getting path for LINKAT
Problem Details: In order for `AT_EMPTY_PATH` to work as expected, the fact that the user wants that behavior needs to make it to `getname_flags` or it will return ENOENT. Fixes: cf30da90bc3a ("io_uring: add support for IORING_OP_LINKAT") Cc: <stable@vger.kernel.org> Link: https://github.com/axboe/liburing/issues/995...
```diff diff --git a/io_uring/fs.c b/io_uring/fs.c index 08e3b175469c..eccea851dd5a 100644 --- a/io_uring/fs.c +++ b/io_uring/fs.c @@ -254,7 +254,7 @@ int io_linkat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) newf = u64_to_user_ptr(READ_ONCE(sqe->addr2)); lnk->flags = READ_ONCE(sqe->hardlink_flags); ...
9880702d123f202369fb674ae62bae25be27475c
Analyze and fix the following issue in the Linux kernel code: ACPI: property: Support using strings in reference properties
Problem Details: In order to allow referencing data nodes directly, which is not possible currently, add support for representing references in device properties as strings (relative or absolute name paths). For example, after this change, the "mipi-img-flash-leds" property in the ASL snippet below will be treated as ...
```diff diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c index 6979a3f9f90a..07d76fb740b6 100644 --- a/drivers/acpi/property.c +++ b/drivers/acpi/property.c @@ -2,14 +2,17 @@ /* * ACPI device specific properties support. * - * Copyright (C) 2014, Intel Corporation + * Copyright (C) 2014 - 2023, Intel...
6f672f7b3b9676853c3b074151ff0a156cdd7b07
Analyze and fix the following issue in the Linux kernel code: fs: namei: Fix spelling mistake "Retuns" to "Returns"
Problem Details: There are two spelling mistake in comments. Fix it. Signed-off-by: YangXin <yx.0xffff@gmail.com> Link: https://lore.kernel.org/r/20231118132136.3084-1-yx.0xffff@gmail.com Signed-off-by: Christian Brauner <brauner@kernel.org>
```diff diff --git a/fs/namei.c b/fs/namei.c index 71c13b2990b4..53db89e99f97 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2467,7 +2467,7 @@ static int handle_lookup_down(struct nameidata *nd) return PTR_ERR(step_into(nd, WALK_NOFOLLOW, nd->path.dentry)); } -/* Returns 0 and nd will be valid on success; Retuns err...
796432efab1e372d404e7a71cc6891a53f105051
Analyze and fix the following issue in the Linux kernel code: libfs: getdents() should return 0 after reaching EOD
Problem Details: The new directory offset helpers don't conform with the convention of getdents() returning no more entries once a directory file descriptor has reached the current end-of-directory. To address this, copy the logic from dcache_readdir() to mark the open directory file descriptor once EOD has been reach...
```diff diff --git a/fs/libfs.c b/fs/libfs.c index e9440d55073c..c2aa6fd4795c 100644 --- a/fs/libfs.c +++ b/fs/libfs.c @@ -399,6 +399,8 @@ static loff_t offset_dir_llseek(struct file *file, loff_t offset, int whence) return -EINVAL; } + /* In this case, ->private_data is protected by f_pos_lock */ + file->privat...
1898efcdbed32bb1c67269c985a50bab0dbc9493
Analyze and fix the following issue in the Linux kernel code: block: update the stable_writes flag in bdev_add
Problem Details: Propagate the per-queue stable_write flags into each bdev inode in bdev_add. This makes sure devices that require stable writes have it set for I/O on the block device node as well. Note that this doesn't cover the case of a flag changing on a live device yet. We should handle that as well, but I pla...
```diff diff --git a/block/bdev.c b/block/bdev.c index e4cfb7adb645..750aec178b6a 100644 --- a/block/bdev.c +++ b/block/bdev.c @@ -425,6 +425,8 @@ void bdev_set_nr_sectors(struct block_device *bdev, sector_t sectors) void bdev_add(struct block_device *bdev, dev_t dev) { + if (bdev_stable_writes(bdev)) + mapping_se...
2c3ef4f89ced1a9d3a6fd4f6457be5c440c89362
Analyze and fix the following issue in the Linux kernel code: ovl: initialize ovl_copy_up_ctx.destname inside ovl_do_copy_up()
Problem Details: The ->destname member of struct ovl_copy_up_ctx is initialized inside ovl_copy_up_one() to ->d_name of the overlayfs dentry being copied up and then it may be overridden by index name inside ovl_do_copy_up(). ovl_inode_lock() in ovl_copy_up_start() and ovl_copy_up() in ovl_rename() effectively stabilz...
```diff diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index 4382881b0709..500c555792ff 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -929,6 +929,13 @@ static int ovl_do_copy_up(struct ovl_copy_up_ctx *c) err = -EIO; goto out_free_fh; } else { + /* + * c->dentry->d_name is...
66917f85db6002ed09cd24186258892fcfca64b6
Analyze and fix the following issue in the Linux kernel code: autofs: add: new_inode check in autofs_fill_super()
Problem Details: Add missing NULL check of root_inode in autofs_fill_super(). While we are at it simplify the logic by taking advantage of the VFS cleanup procedures and get rid of the goto error handling, as suggested by Al Viro. Signed-off-by: Ian Kent <raven@themaw.net> Link: https://lore.kernel.org/r/202311192253...
```diff diff --git a/fs/autofs/inode.c b/fs/autofs/inode.c index a5083d447a62..1f5db6863663 100644 --- a/fs/autofs/inode.c +++ b/fs/autofs/inode.c @@ -309,9 +309,7 @@ static int autofs_fill_super(struct super_block *s, struct fs_context *fc) struct autofs_fs_context *ctx = fc->fs_private; struct autofs_sb_info *sbi...
fcd479a79120bf0cd507d85f898297a3b868dda6
Analyze and fix the following issue in the Linux kernel code: drm/i915: Also check for VGA converter in eDP probe
Problem Details: Unfortunately even the HPD based detection added in commit cfe5bdfb27fa ("drm/i915: Check HPD live state during eDP probe") fails to detect that the VBT's eDP/DDI-A is a ghost on Asus B360M-A (CFL+CNP). On that board eDP/DDI-A has its HPD asserted despite nothing being actually connected there :( The s...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index effb3da291e1..3867a0d9e004 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -6270,8 +6270,7 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp,...
252eafe11ffc032579a56c7a29faa8431785a91e
Analyze and fix the following issue in the Linux kernel code: dt-bindings: spi: axi-spi-engine: convert to yaml
Problem Details: This converts the axi-spi-engine binding to yaml. There are a few minor fixes in the conversion: * Added maintainers. * Added descriptions for the clocks. * Fixed the double "@" in the example. * Added a comma between the clocks in the example. Signed-off-by: David Lechner <dlechner@baylibre.com> Rev...
```diff diff --git a/Documentation/devicetree/bindings/spi/adi,axi-spi-engine.txt b/Documentation/devicetree/bindings/spi/adi,axi-spi-engine.txt deleted file mode 100644 index 8a18d71e6879..000000000000 --- a/Documentation/devicetree/bindings/spi/adi,axi-spi-engine.txt +++ /dev/null @@ -1,31 +0,0 @@ -Analog Devices AXI...
14e8442e0789598514f3c9de014950de9feda7a4
Analyze and fix the following issue in the Linux kernel code: ASoC: fsl_sai: Fix no frame sync clock issue on i.MX8MP
Problem Details: On i.MX8MP, when the TERE and FSD_MSTR enabled before configuring the word width, there will be no frame sync clock issue, because old word width impact the generation of frame sync. TERE enabled earlier only for i.MX8MP case for the hardware limitation, So need to disable FSD_MSTR before configuring ...
```diff diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c index 79e7c6b98a75..32bbe5056a63 100644 --- a/sound/soc/fsl/fsl_sai.c +++ b/sound/soc/fsl/fsl_sai.c @@ -673,6 +673,20 @@ static int fsl_sai_hw_params(struct snd_pcm_substream *substream, FSL_SAI_CR3_TRCE_MASK, FSL_SAI_CR3_TRCE((dl_cfg[...
93ec6f222c680cef282a2e94fc42a130d34179b2
Analyze and fix the following issue in the Linux kernel code: platform/x86: x86-android-tablets: Fix backlight ctrl for Lenovo Yoga Tab 3 Pro YT3-X90F
Problem Details: Fix the maximum brightness being much too low on the Yoga Tab 3 Pro. The LP8557 backlight controller can either be configured to multiply its PWM input and the I2C register set level (requiring both to be at 100% for 100% output); or to only take the I2C register set level into account. Multiplying t...
```diff diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c index 0bc6a74b8beb..f1c66a61bfc5 100644 --- a/drivers/platform/x86/x86-android-tablets/lenovo.c +++ b/drivers/platform/x86/x86-android-tablets/lenovo.c @@ -34,12 +34,30 @@ * * To avoid having t...
57eb82ff34e3e3dfa95a80c40ef5a4764c833ec6
Analyze and fix the following issue in the Linux kernel code: platform/mellanox: mlxbf-tmfifo: Remove unnecessary bool conversion
Problem Details: This commit fixes coccinelle warning in macro function IS_VRING_DROP() which complains conversion to bool not needed here. Signed-off-by: Jules Irenge <jbi.octave@gmail.com> Link: https://lore.kernel.org/r/ZUWIIKbz4vukl8qb@octinomon Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Reviewed-b...
```diff diff --git a/drivers/platform/mellanox/mlxbf-tmfifo.c b/drivers/platform/mellanox/mlxbf-tmfifo.c index 5c683b4eaf10..ed16ec422a7b 100644 --- a/drivers/platform/mellanox/mlxbf-tmfifo.c +++ b/drivers/platform/mellanox/mlxbf-tmfifo.c @@ -91,7 +91,7 @@ struct mlxbf_tmfifo_vring { /* Check whether vring is in drop ...
5a77457232fa0453da4d3d5a7d530129944aeeb5
Analyze and fix the following issue in the Linux kernel code: ALSA: wavefront: copy userspace array safely
Problem Details: wavefront_fx.c utilizes memdup_user() to copy a userspace array. This does not check for an overflow. Use the new wrapper memdup_array_user() to copy the array more safely. Suggested-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Philipp Stanner <pstanner@redhat.com> Link: https://lore.kernel.or...
```diff diff --git a/sound/isa/wavefront/wavefront_fx.c b/sound/isa/wavefront/wavefront_fx.c index 3c21324b2a0e..0273b7dfaf12 100644 --- a/sound/isa/wavefront/wavefront_fx.c +++ b/sound/isa/wavefront/wavefront_fx.c @@ -191,9 +191,9 @@ snd_wavefront_fx_ioctl (struct snd_hwdep *sdev, struct file *file, "> 512 b...
d04ce4113cb4e5c2deddcb161db42a25917f285f
Analyze and fix the following issue in the Linux kernel code: ALSA: cs35l41: Fix for old systems which do not support command
Problem Details: Some older laptops using cs35l41 use firmware which does not support the CSPL_MBOX_CMD_SPK_OUT_ENABLE command. Firmware versions v0.28.0 and older do not support this command. Fixes: fa3efcc36aac ("ALSA: cs35l41: Use mbox command to enable speaker output for external boost") Signed-off-by: Stefan Bind...
```diff diff --git a/include/sound/cs35l41.h b/include/sound/cs35l41.h index 043f8ac65dbf..68e053fe7340 100644 --- a/include/sound/cs35l41.h +++ b/include/sound/cs35l41.h @@ -906,6 +906,6 @@ int cs35l41_init_boost(struct device *dev, struct regmap *regmap, bool cs35l41_safe_reset(struct regmap *regmap, enum cs35l41_bo...
37f67abe08557a79c3aabf684a49c6b99dbc259a
Analyze and fix the following issue in the Linux kernel code: ALSA: hda: cs35l41: Remove unnecessary boolean state variable firmware_running
Problem Details: This state duplicates the running state inside cs_dsp, so is not necessary. Remove it, and use cs_dsp.running instead. This brings the CS35L41 HDA driver more inline with its ASoC version, allowing the same state to be used when calling library functions. Fixes: fa3efcc36aac ("ALSA: cs35l41: Use mbox ...
```diff diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c index b2db8091f0ed..b7d2aa18c566 100644 --- a/sound/pci/hda/cs35l41_hda.c +++ b/sound/pci/hda/cs35l41_hda.c @@ -504,7 +504,6 @@ static void cs35l41_shutdown_dsp(struct cs35l41_hda *cs35l41) cs_dsp_stop(dsp); cs_dsp_power_down(dsp); - c...
7c9caa299335df94ad1c58f70a22f16a540eab60
Analyze and fix the following issue in the Linux kernel code: ALSA: hda - Fix speaker and headset mic pin config for CHUWI CoreBook XPro
Problem Details: This patch corrected the speaker and headset mic pin config to the more appropriate values. Signed-off-by: Vasiliy Kovalev <kovalev@altlinux.org> Link: https://lore.kernel.org/r/20231117170923.106822-1-kovalev@altlinux.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
```diff diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 5618b1d9bfd1..079876b7b3e7 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -7249,6 +7249,7 @@ enum { ALC290_FIXUP_SUBWOOFER_HSJACK, ALC269_FIXUP_THINKPAD_ACPI, ALC269_FIXUP_DMIC_THINKPAD_ACPI...
dfed6b58d54f3a5d7e6bc1fb060e2c936330eba2
Analyze and fix the following issue in the Linux kernel code: drm/i915/gsc: Mark internal GSC engine with reserved uabi class
Problem Details: The GSC CS is not exposed to the user, so we skipped assigning a uabi class number for it. However, the trace logs use the uabi class and instance to identify the engine, so leaving uabi class unset makes the GSC CS show up as the RCS in those logs. Given that the engine is not exposed to the user, we...
```diff diff --git a/drivers/gpu/drm/i915/gt/intel_engine_user.c b/drivers/gpu/drm/i915/gt/intel_engine_user.c index 118164ddbb2e..833987015b8b 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_user.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_user.c @@ -41,12 +41,15 @@ void intel_engine_add_user(struct intel_engine_cs...
e31b380741bfa27d274a9f9610fd732e1204ea24
Analyze and fix the following issue in the Linux kernel code: drm/i915: Add __rcu annotation to cursor when iterating client objects
Problem Details: __rcu annotation is needed to avoid the sparse warnings such as: .../i915_drm_client.c:92:9: sparse: sparse: incompatible types in comparison expression (different address spaces): .../i915_drm_client.c:92:9: sparse: struct list_head [noderef] __rcu * .../i915_drm_client.c:92:9: sparse: st...
```diff diff --git a/drivers/gpu/drm/i915/i915_drm_client.c b/drivers/gpu/drm/i915/i915_drm_client.c index be9acfd9410e..fa6852713bee 100644 --- a/drivers/gpu/drm/i915/i915_drm_client.c +++ b/drivers/gpu/drm/i915/i915_drm_client.c @@ -78,7 +78,7 @@ static void show_meminfo(struct drm_printer *p, struct drm_file *file) ...
44eea8d08078bbce4d0f76c16706ab57ec38da62
Analyze and fix the following issue in the Linux kernel code: drm/i915: Remove return type from i915_drm_client_remove_object
Problem Details: There is no need to return anything in the version which was merged and also the implementation of the !CONFIG_PROC_FS wasn't returning anything, causing a build failure there. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Fixes: e4ae85e364fc ("drm/i915: Add ability for tracking buffer obje...
```diff diff --git a/drivers/gpu/drm/i915/i915_drm_client.c b/drivers/gpu/drm/i915/i915_drm_client.c index 7efffdaa508d..be9acfd9410e 100644 --- a/drivers/gpu/drm/i915/i915_drm_client.c +++ b/drivers/gpu/drm/i915/i915_drm_client.c @@ -191,22 +191,20 @@ void i915_drm_client_add_object(struct i915_drm_client *client, s...
923fb6238cb3ac529aa2bf13b3b1e53762186a8b
Analyze and fix the following issue in the Linux kernel code: mtd: rawnand: Increment IFC_TIMEOUT_MSECS for nand controller response
Problem Details: Under heavy load it is likely that the controller is done with its own task but the thread unlocking the wait is not scheduled in time. Increasing IFC_TIMEOUT_MSECS allows the controller to respond within allowable timeslice of 1 sec. fsl,ifc-nand 7e800000.nand: Controller is not responding [<804b204...
```diff diff --git a/drivers/mtd/nand/raw/fsl_ifc_nand.c b/drivers/mtd/nand/raw/fsl_ifc_nand.c index 20bb1e0cb5eb..f0e2318ce088 100644 --- a/drivers/mtd/nand/raw/fsl_ifc_nand.c +++ b/drivers/mtd/nand/raw/fsl_ifc_nand.c @@ -21,7 +21,7 @@ #define ERR_BYTE 0xFF /* Value returned for read bytes when read failed *...
0561794b6b642b84b879bf97061c4b4fa692839e
Analyze and fix the following issue in the Linux kernel code: drm/i915: do not clean GT table on error path
Problem Details: The only task of intel_gt_release_all is to zero gt table. Calling it on error path prevents intel_gt_driver_late_release_all (called from i915_driver_late_release) to cleanup GTs, causing leakage. After i915_driver_late_release GT array is not used anymore so it does not need cleaning at all. Sample ...
```diff diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c index ed32bf5b1546..ba1186fc524f 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt.c +++ b/drivers/gpu/drm/i915/gt/intel_gt.c @@ -982,8 +982,6 @@ int intel_gt_probe_all(struct drm_i915_private *i915) err: i915_probe_error(i915...
018903e1cec3421a6198589fabd30682eb277904
Analyze and fix the following issue in the Linux kernel code: drm/i915/dp_mst: Fix race between connector registration and setup
Problem Details: After drm_connector_init() is called the connector is visible to the rest of the kernel via the drm_mode_config::connector_list. Make sure that the DSC AUX device and capabilities are setup by that time. Another race condition is adding the connector to the connector list before drm_connector_helper_a...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c index 7b4628f4f124..851b312bd844 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c @@ -1161,6 +1161,14 @@ static struct drm_connector *intel_dp_add_mst_...
03c5b2a5f6c39fe4e090346536cf1c14ee18b61e
Analyze and fix the following issue in the Linux kernel code: drm/panel-elida-kd35t133: hold panel in reset for unprepare
Problem Details: For devices like the Anbernic RG351M and RG351P the panel is wired to an always on regulator. When the device suspends and wakes up, there are some slight artifacts on the screen that go away over time. If instead we hold the panel in reset status after it is unprepared, this does not happen. Fixes: 5...
```diff diff --git a/drivers/gpu/drm/panel/panel-elida-kd35t133.c b/drivers/gpu/drm/panel/panel-elida-kd35t133.c index 6cd8536c09ff..f1fc4a26f447 100644 --- a/drivers/gpu/drm/panel/panel-elida-kd35t133.c +++ b/drivers/gpu/drm/panel/panel-elida-kd35t133.c @@ -104,6 +104,8 @@ static int kd35t133_unprepare(struct drm_pane...
697ebc319b942403a6fee894607fd2cd47cca069
Analyze and fix the following issue in the Linux kernel code: drm/panel: nv3051d: Hold panel in reset for unprepare
Problem Details: Improve the panel's ability to restore from suspend by holding the panel in suspend after unprepare. Fixes: b1d39f0f4264 ("drm/panel: Add NewVision NV3051D MIPI-DSI LCD panel") Signed-off-by: Chris Morgan <macromorgan@hotmail.com> Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com> Link: https://lo...
```diff diff --git a/drivers/gpu/drm/panel/panel-newvision-nv3051d.c b/drivers/gpu/drm/panel/panel-newvision-nv3051d.c index 79de6c886292..c44c6945662f 100644 --- a/drivers/gpu/drm/panel/panel-newvision-nv3051d.c +++ b/drivers/gpu/drm/panel/panel-newvision-nv3051d.c @@ -261,6 +261,8 @@ static int panel_nv3051d_unprepar...
45b478951b2ba5aea70b2850c49c1aa83aedd0d2
Analyze and fix the following issue in the Linux kernel code: md: fix bi_status reporting in md_end_clone_io
Problem Details: md_end_clone_io() may overwrite error status in orig_bio->bi_status with BLK_STS_OK. This could happen when orig_bio has BIO_CHAIN (split by md_submit_bio => bio_split_to_limits, for example). As a result, upper layer may miss error reported from md (or the device) and consider the failed IO was succes...
```diff diff --git a/drivers/md/md.c b/drivers/md/md.c index 4ee4593c874a..c94373d64f2c 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -8666,7 +8666,8 @@ static void md_end_clone_io(struct bio *bio) struct bio *orig_bio = md_io_clone->orig_bio; struct mddev *mddev = md_io_clone->mddev; - orig_bio->bi_statu...
a6925165ea82b7765269ddd8dcad57c731aa00de
Analyze and fix the following issue in the Linux kernel code: ata: pata_isapnp: Add missing error check for devm_ioport_map()
Problem Details: Add missing error return check for devm_ioport_map() and return the error if this function call fails. Fixes: 0d5ff566779f ("libata: convert to iomap") Signed-off-by: Chen Ni <nichen@iscas.ac.cn> Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
```diff diff --git a/drivers/ata/pata_isapnp.c b/drivers/ata/pata_isapnp.c index 25a63d043c8e..0f77e0424066 100644 --- a/drivers/ata/pata_isapnp.c +++ b/drivers/ata/pata_isapnp.c @@ -82,6 +82,9 @@ static int isapnp_init_one(struct pnp_dev *idev, const struct pnp_device_id *dev if (pnp_port_valid(idev, 1)) { ctl_ad...
5f228d7c8a539714c1e9b7e7534f76bb7979f268
Analyze and fix the following issue in the Linux kernel code: octeontx2-pf: Fix memory leak during interface down
Problem Details: During 'ifconfig <netdev> down' one RSS memory was not getting freed. This patch fixes the same. Fixes: 81a4362016e7 ("octeontx2-pf: Add RSS multi group support") Signed-off-by: Suman Ghosh <sumang@marvell.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: David S. Miller <davem@davemlof...
```diff diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c index 91b99fd70361..ba95ac913274 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c @@ -1934,6 +1934,8 @@ int otx2_st...
93da8d75a66568ba4bb5b14ad2833acd7304cd02
Analyze and fix the following issue in the Linux kernel code: wireguard: use DEV_STATS_INC()
Problem Details: wg_xmit() can be called concurrently, KCSAN reported [1] some device stats updates can be lost. Use DEV_STATS_INC() for this unlikely case. [1] BUG: KCSAN: data-race in wg_xmit / wg_xmit read-write to 0xffff888104239160 of 8 bytes by task 1375 on cpu 0: wg_xmit+0x60f/0x680 drivers/net/wireguard/devi...
```diff diff --git a/drivers/net/wireguard/device.c b/drivers/net/wireguard/device.c index 258dcc103921..deb9636b0ecf 100644 --- a/drivers/net/wireguard/device.c +++ b/drivers/net/wireguard/device.c @@ -210,7 +210,7 @@ static netdev_tx_t wg_xmit(struct sk_buff *skb, struct net_device *dev) */ while (skb_queue_len(...
ebd7bf60e21c567a7fbe0e2a7bc4be8406ff8093
Analyze and fix the following issue in the Linux kernel code: net: ethernet: ti: am65-cpsw: Fix error handling in am65_cpsw_nuss_common_open()
Problem Details: k3_udma_glue_enable_rx/tx_chn returns error code on failure. Bail out on error while enabling TX/RX channel. In the error path, clean up the RX descriptors and SKBs. Get rid of kmemleak_not_leak() as it seems unnecessary now. Fixes: 93a76530316a ("net: ethernet: ti: introduce am65x/j721e gigabit eth ...
```diff diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c index 78b3e69fbccb..7992a76ed4d8 100644 --- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c +++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c @@ -443,7 +443,7 @@ static void am65_cpsw_nuss_tx_cleanup(void *data, dma_addr_t ...
8ba2c459668cfe2aaacc5ebcd35b4b9ef8643013
Analyze and fix the following issue in the Linux kernel code: net: wangxun: fix kernel panic due to null pointer
Problem Details: When the device uses a custom subsystem vendor ID, the function wx_sw_init() returns before the memory of 'wx->mac_table' is allocated. The null pointer will causes the kernel panic. Fixes: 79625f45ca73 ("net: wangxun: Move MAC address handling to libwx") Signed-off-by: Jiawen Wu <jiawenwu@trustnetic....
```diff diff --git a/drivers/net/ethernet/wangxun/libwx/wx_hw.c b/drivers/net/ethernet/wangxun/libwx/wx_hw.c index a3c5de9d547a..533e912af089 100644 --- a/drivers/net/ethernet/wangxun/libwx/wx_hw.c +++ b/drivers/net/ethernet/wangxun/libwx/wx_hw.c @@ -1769,10 +1769,12 @@ int wx_sw_init(struct wx *wx) wx->subsystem_de...
3f9a91b6c00e655d27bd785dcda1742dbdc31bda
Analyze and fix the following issue in the Linux kernel code: drm/panel: simple: Fix Innolux G101ICE-L01 timings
Problem Details: The Innolux G101ICE-L01 datasheet [1] page 17 table 6.1 INPUT SIGNAL TIMING SPECIFICATIONS indicates that maximum vertical blanking time is 40 lines. Currently the driver uses 29 lines. Fix it, and since this panel is a DE panel, adjust the timings to make them less hostile to controllers which cannot...
```diff diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 086750f99d27..9367a4572dcf 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -2379,13 +2379,13 @@ static const struct panel_desc innolux_g070y2_t02 = { static const struc...
06fc41b09cfbc02977acd9189473593a37d82d9b
Analyze and fix the following issue in the Linux kernel code: drm/panel: simple: Fix Innolux G101ICE-L01 bus flags
Problem Details: Add missing .bus_flags = DRM_BUS_FLAG_DE_HIGH to this panel description, ones which match both the datasheet and the panel display_timing flags . Fixes: 1e29b840af9f ("drm/panel: simple: Add Innolux G101ICE-L01 panel") Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Neil Armstrong <neil.armstr...
```diff diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 6cd32b909087..086750f99d27 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -2402,6 +2402,7 @@ static const struct panel_desc innolux_g101ice_l01 = { .disable = 200, ...
eb7854d63db543caeb8cadb5c3ae5296d0cb7b8f
Analyze and fix the following issue in the Linux kernel code: RDMA/hns: Support SW stats with debugfs
Problem Details: Support SW stats with debugfs. Query output: $ cat /sys/kernel/debug/hns_roce/hns_0/sw_stat/sw_stat aeqe --- 3341 ceqe --- 0 cmds --- 6764 cmds_err --- 0 posted_mbx --- 3344 polled_mbx --- 3 mbx_event --- 3341 q...
```diff diff --git a/drivers/infiniband/hw/hns/hns_roce_ah.c b/drivers/infiniband/hw/hns/hns_roce_ah.c index 3df032ddda18..fbf046982374 100644 --- a/drivers/infiniband/hw/hns/hns_roce_ah.c +++ b/drivers/infiniband/hw/hns/hns_roce_ah.c @@ -92,11 +92,15 @@ int hns_roce_create_ah(struct ib_ah *ibah, struct rdma_ah_init_at...
f45b83ad39f8033e717b1eee57e81811113d5a84
Analyze and fix the following issue in the Linux kernel code: RDMA/hns: Fix inappropriate err code for unsupported operations
Problem Details: EOPNOTSUPP is more situable than EINVAL for allocating XRCD while XRC is not supported and unsupported resizing SRQ. Fixes: 32548870d438 ("RDMA/hns: Add support for XRC on HIP09") Fixes: 221109e64316 ("RDMA/hns: Add interception for resizing SRQs") Signed-off-by: Junxian Huang <huangjunxian6@hisilicon...
```diff diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 0cd2612a4987..c01307be06ab 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -5666,7 +5666,7 @@ static int hns_roce_v2_modify_srq(struct ib_srq *ib...
b9622937d95809ef89904583191571a9fa326402
Analyze and fix the following issue in the Linux kernel code: arm64: dts: allwinner: h616: update emac for Orange Pi Zero 3
Problem Details: The current emac setting is not suitable for Orange Pi Zero 3, move it back to Orange Pi Zero 2 DT. Also update phy mode and delay values for emac on Orange Pi Zero 3. With these changes, Ethernet now looks stable. Fixes: 322bf103204b ("arm64: dts: allwinner: h616: Split Orange Pi Zero 2 DT") Signed-o...
```diff diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero.dtsi index 15290e6892fc..fc7315b94406 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-h616-orangepi-zero.dtsi @...
2fcd38f4de7256e2b5cb23ad22a6e3ebfea7dd18
Analyze and fix the following issue in the Linux kernel code: [software coproarchaeology] dentry.h: kill a mysterious comment
Problem Details: there's a strange comment in front of d_lookup() declaration: /* appendix may either be NULL or be used for transname suffixes */ Looks like nobody had been curious enough to track its history; it predates git, it predates bitkeeper and if you look through the pre-BK trees, you finally arrive at this...
```diff diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 9706bf1dc5de..a5e5e274eee0 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -270,7 +270,6 @@ extern void d_move(struct dentry *, struct dentry *); extern void d_exchange(struct dentry *, struct dentry *); extern struct dentr...
6ad6e15a9c46b8f0932cd99724f26f3db4db1cdf
Analyze and fix the following issue in the Linux kernel code: parisc/power: Fix power soft-off when running on qemu
Problem Details: Firmware returns the physical address of the power switch, so need to use gsc_writel() instead of direct memory access. Fixes: d0c219472980 ("parisc/power: Add power soft-off when running on qemu") Signed-off-by: Helge Deller <deller@gmx.de> Cc: stable@vger.kernel.org # v6.0+
```diff diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c index 539d8920c202..bb0d92461b08 100644 --- a/drivers/parisc/power.c +++ b/drivers/parisc/power.c @@ -176,7 +176,7 @@ static struct notifier_block parisc_panic_block = { static int qemu_power_off(struct sys_off_data *data) { /* this turns the syst...