id stringlengths 40 40 | instruction stringlengths 68 308 | input stringlengths 17 33.4k | output stringlengths 100 30k |
|---|---|---|---|
b247ed6f60bdc61616b0243024e118b0659ce78f | Analyze and fix the following issue in the Linux kernel code: RDMA/uverbs: Update outdated reference to remove_commit_idr_uobject() | Problem Details:
The function remove_commit_idr_uobject() was split into
destroy_hw_idr_uobject() and remove_handle_idr_uobject() by
commit 0f50d88a6e9a ("IB/uverbs: Allow all DESTROY commands
to succeed after disassociate"). The kref put that the
comment refers to now lives in remove_handle_idr_uobject().
Update the ... | ```diff
diff --git a/drivers/infiniband/core/rdma_core.c b/drivers/infiniband/core/rdma_core.c
index 3e0a8b9cd288..5018ec837056 100644
--- a/drivers/infiniband/core/rdma_core.c
+++ b/drivers/infiniband/core/rdma_core.c
@@ -590,11 +590,11 @@ static void alloc_commit_idr_uobject(struct ib_uobject *uobj)
void *old;
... |
dc76086a2d94d09aea9fd41a65ed56e0f7a6ec50 | Analyze and fix the following issue in the Linux kernel code: RDMA: Properly propagate the number of CQEs as unsigned int | Problem Details:
Instead of checking whether the number of CQEs is negative or zero, fix the
.resize_user_cq() declaration to use unsigned int. This better reflects the
expected value range. The sanity check is then handled correctly in ib_uvbers.
Link: https://patch.msgid.link/20260319-resize_cq-cqe-v1-1-b78c6efc1def... | ```diff
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 25741db2c8f6..a768436ba468 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -1138,6 +1138,9 @@ static int ib_uverbs_resize_cq(struct uverbs_attr_bundle *attrs)
if (ret)... |
ca34ee6d0307a0b4e52c870dfc1bb8a3c3eb956e | Analyze and fix the following issue in the Linux kernel code: hwmon: (tps53679) Fix device ID comparison and printing in tps53676_identify() | Problem Details:
tps53676_identify() uses strncmp() to compare the device ID buffer
against a byte sequence containing embedded non-printable bytes
(\x53\x67\x60). strncmp() is semantically wrong for binary data
comparison; use memcmp() instead.
Additionally, the buffer from i2c_smbus_read_block_data() is not
NUL-term... | ```diff
diff --git a/drivers/hwmon/pmbus/tps53679.c b/drivers/hwmon/pmbus/tps53679.c
index 3bca543817a6..249974c13aa3 100644
--- a/drivers/hwmon/pmbus/tps53679.c
+++ b/drivers/hwmon/pmbus/tps53679.c
@@ -175,8 +175,8 @@ static int tps53676_identify(struct i2c_client *client,
ret = i2c_smbus_read_block_data(client, PMB... |
4663a5a2a3483b5f6b049cf7e9705773ab35e6c7 | Analyze and fix the following issue in the Linux kernel code: docs: proc: remove description of prof_cpu_mask | Problem Details:
Commit 2e5449f4f21a ("profiling: Remove create_prof_cpu_mask().") said that
no one would create /proc/irq/prof_cpu_mask since commit 1f44a225777e
("s390: convert interrupt handling to use generic hardirq", 2013). Remove
the outdated description.
While at it, fix another minor typo (s/DMS/DMA/).
Signe... | ```diff
diff --git a/Documentation/filesystems/proc.rst b/Documentation/filesystems/proc.rst
index e2d22a424dcd..873761087f8d 100644
--- a/Documentation/filesystems/proc.rst
+++ b/Documentation/filesystems/proc.rst
@@ -743,7 +743,7 @@ files are there, and which are missing.
in the kernel image
cpuinfo ... |
2e8b1a1d12ae3338efeb1c3de3eb4e9324b87a28 | Analyze and fix the following issue in the Linux kernel code: rtla: Fix build without libbpf header | Problem Details:
rtla supports building without libbpf. However, BPF actions
patchset [1] adds an include of bpf/libbpf.h into timerlat_bpf.h,
which breaks build on systems that don't have libbpf headers
installed.
This is a leftover from a draft version of the patchset where
timerlat_bpf_set_action() (which takes a s... | ```diff
diff --git a/tools/tracing/rtla/src/timerlat_bpf.h b/tools/tracing/rtla/src/timerlat_bpf.h
index 169abeaf4363..f7c5675737fe 100644
--- a/tools/tracing/rtla/src/timerlat_bpf.h
+++ b/tools/tracing/rtla/src/timerlat_bpf.h
@@ -12,7 +12,6 @@ enum summary_field {
};
#ifndef __bpf__
-#include <bpf/libbpf.h>
#ifde... |
d8a224f519c6e7079ca3471e32c1e55fde7a2fdd | Analyze and fix the following issue in the Linux kernel code: docs: changes/ver_linux: fix entries and add several tools | Problem Details:
Some of the entries in both Documentation/process/changes.rst and
script/ver_linux were obsolete; update them to reflect the current way of
getting version information.
Many were missing altogether; add the relevant information for:
bash, bc, bindgen, btrfs-progs, Clang, gdb, GNU awk, GNU tar,
GRU... | ```diff
diff --git a/Documentation/process/changes.rst b/Documentation/process/changes.rst
index f9f6f5c47882..bfad07ad0176 100644
--- a/Documentation/process/changes.rst
+++ b/Documentation/process/changes.rst
@@ -19,12 +19,13 @@ Current Minimal Requirements
Upgrade to at **least** these software revisions before t... |
06dbdc5da152e30fbd09b37afdca2fdec9da2165 | Analyze and fix the following issue in the Linux kernel code: Revert "scripts: ver_linux: expand and fix list" | Problem Details:
This reverts commit 98e7b5752898f74788098bef51f53205e365ab9d.
I had not intended to apply this version of this patch; take it out and
we'll try again later.
Signed-off-by: Jonathan Corbet <corbet@lwn.net> | ```diff
diff --git a/scripts/ver_linux b/scripts/ver_linux
index 458c30a44f8d..d6f2362d3792 100755
--- a/scripts/ver_linux
+++ b/scripts/ver_linux
@@ -7,7 +7,7 @@
BEGIN {
usage = "If some fields are empty or look unusual you may have an old version.\n"
- usage = usage "Compare to the current minimal requirements i... |
6389dbd5c4a2d819ec342f89bd65883ab021278e | Analyze and fix the following issue in the Linux kernel code: ALSA: hda: cs35l41: Fix boost type for HP Dragonfly 13.5 inch G4 | Problem Details:
The HP Dragonfly 13.5 inch G4 (SSID 103C8B63) has _DSD properties in
ACPI firmware with valid reset-gpios and cs-gpios for the four CS35L41
amplifiers on SPI.
However, the _DSD specifies cirrus,boost-type as Internal (0), while
the hardware requires External Boost. With Internal Boost configured,
the ... | ```diff
diff --git a/sound/hda/codecs/side-codecs/cs35l41_hda_property.c b/sound/hda/codecs/side-codecs/cs35l41_hda_property.c
index 16d5ea77192f..732ae534db36 100644
--- a/sound/hda/codecs/side-codecs/cs35l41_hda_property.c
+++ b/sound/hda/codecs/side-codecs/cs35l41_hda_property.c
@@ -55,6 +55,11 @@ static const struc... |
7f7f468548cee80d221cbc77e639fe99e113ff99 | Analyze and fix the following issue in the Linux kernel code: Documentation: Provide hints on how to debug Python GDB scripts | Problem Details:
By default GDB does not print a full stack of its integrated Python
interpreter, thus making the debugging of GDB scripts more painful than
it has to be.
Suggested-by: Radu Rendec <radu@rendec.net>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Radu Rendec <radu@rendec.ne... | ```diff
diff --git a/Documentation/process/debugging/gdb-kernel-debugging.rst b/Documentation/process/debugging/gdb-kernel-debugging.rst
index 9475c759c722..53e225760a4d 100644
--- a/Documentation/process/debugging/gdb-kernel-debugging.rst
+++ b/Documentation/process/debugging/gdb-kernel-debugging.rst
@@ -173,3 +173,12... |
d642acfd597e3ec37138f9a8f5a634845e3612fd | Analyze and fix the following issue in the Linux kernel code: doc tools: better handle KBUILD_VERBOSE | Problem Details:
As reported by Jacob, there are troubles when KBUILD_VERBOSE is
set at the environment.
Fix it on both kernel-doc and sphinx-build-wrapper.
Reported-by: Jacob Keller <jacob.e.keller@intel.com>
Closes: https://lore.kernel.org/linux-doc/9367d899-53af-4d9c-9320-22fc4dbadca5@intel.com/
Signed-off-by: Mau... | ```diff
diff --git a/tools/docs/sphinx-build-wrapper b/tools/docs/sphinx-build-wrapper
index 2c63d28f639d..1bb962202784 100755
--- a/tools/docs/sphinx-build-wrapper
+++ b/tools/docs/sphinx-build-wrapper
@@ -238,7 +238,12 @@ class SphinxBuilder:
self.latexopts = os.environ.get("LATEXOPTS", "")
if... |
61135967fa76d37883d90ccccc5a1cb73e90b94d | Analyze and fix the following issue in the Linux kernel code: drivers/virt: pkvm: Add Kconfig dependency on DMA_RESTRICTED_POOL | Problem Details:
pKVM guests practically rely on CONFIG_DMA_RESTRICTED_POOL=y in order
to establish shared memory regions with the host for virtio buffers.
Make CONFIG_ARM_PKVM_GUEST depend on CONFIG_DMA_RESTRICTED_POOL to avoid
the inevitable segmentation faults experience if you have the former but
not the latter.
... | ```diff
diff --git a/drivers/virt/coco/pkvm-guest/Kconfig b/drivers/virt/coco/pkvm-guest/Kconfig
index d2f344f1f98f..928b8e1668cc 100644
--- a/drivers/virt/coco/pkvm-guest/Kconfig
+++ b/drivers/virt/coco/pkvm-guest/Kconfig
@@ -1,6 +1,6 @@
config ARM_PKVM_GUEST
bool "Arm pKVM protected guest driver"
- depends on ARM6... |
3a81a814437d187ac893b3d937985d6503ff3841 | Analyze and fix the following issue in the Linux kernel code: KVM: arm64: Expose self-hosted debug regs as RAZ/WI for protected guests | Problem Details:
Debug and trace are not currently supported for protected guests, so
trap accesses to the related registers and emulate them as RAZ/WI for
now. Although this isn't strictly compatible with the architecture, it's
sufficient for Linux guests and means that debug support can be added
later on.
Tested-by:... | ```diff
diff --git a/arch/arm64/kvm/hyp/nvhe/sys_regs.c b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
index 06d28621722e..0a84140afa28 100644
--- a/arch/arm64/kvm/hyp/nvhe/sys_regs.c
+++ b/arch/arm64/kvm/hyp/nvhe/sys_regs.c
@@ -392,6 +392,14 @@ static const struct sys_reg_desc pvm_sys_reg_descs[] = {
/* Cache maintenance by s... |
5e66f723d4de432a5acb481293d81dc88c7f61a4 | Analyze and fix the following issue in the Linux kernel code: KVM: arm64: Don't leak stage-2 page-table if VM fails to init under pKVM | Problem Details:
If pkvm_init_host_vm() fails, we should free the stage-2 page-table
previously allocated by kvm_init_stage2_mmu().
Cc: Fuad Tabba <tabba@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Tested-by: Fuad Tabba <tabba@google.com>
Tested-by: Mostafa Saleh <smostafa@google.com>
Fixes: 07aeb70707b1 ("... | ```diff
diff --git a/arch/arm64/kvm/arm.c b/arch/arm64/kvm/arm.c
index 410ffd41fd73..3589fc08266c 100644
--- a/arch/arm64/kvm/arm.c
+++ b/arch/arm64/kvm/arm.c
@@ -236,7 +236,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
*/
ret = pkvm_init_host_vm(kvm);
if (ret)
- goto err_free_cpumask;
+ ... |
799fe8dc2af52f35c78c4ac97f8e34994dfd8760 | Analyze and fix the following issue in the Linux kernel code: drm/i915/dp: Use crtc_state->enhanced_framing properly on ivb/hsw CPU eDP | Problem Details:
Looks like I missed the drm_dp_enhanced_frame_cap() in the ivb/hsw CPU
eDP code when I introduced crtc_state->enhanced_framing. Fix it up so
that the state we program to the hardware is guaranteed to match what
we computed earlier.
Cc: stable@vger.kernel.org
Fixes: 3072a24c778a ("drm/i915: Introduce c... | ```diff
diff --git a/drivers/gpu/drm/i915/display/g4x_dp.c b/drivers/gpu/drm/i915/display/g4x_dp.c
index d7de329abf19..5e74d8a3ba5c 100644
--- a/drivers/gpu/drm/i915/display/g4x_dp.c
+++ b/drivers/gpu/drm/i915/display/g4x_dp.c
@@ -136,7 +136,7 @@ static void intel_dp_prepare(struct intel_encoder *encoder,
intel_dp-... |
0f21a14987ebae3c05ad1184ea872e7b7a7b8695 | Analyze and fix the following issue in the Linux kernel code: drm/i915/cdclk: Do the full CDCLK dance for min_voltage_level changes | Problem Details:
Apparently I forgot about the pipe min_voltage_level when I
decoupled the CDCLK calculations from modesets. Even if the
CDCLK frequency doesn't need changing we may still need to
bump the voltage level to accommodate an increase in the
port clock frequency.
Currently, even if there is a full modeset, ... | ```diff
diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 121a12c5b8ac..a47736613f6e 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -2972,6 +2972,53 @@ static int intel_cdclk_update_crtc_min_cdclk(struc... |
3ddbea7542ae529c1a88ef9a8b1ce169126211f6 | Analyze and fix the following issue in the Linux kernel code: vt: resize saved unicode buffer on alt screen exit after resize | Problem Details:
Instead of discarding the saved unicode buffer when the console was
resized while in the alternate screen, resize it to the current
dimensions using vc_uniscr_copy_area() to preserve its content. This
properly restores the unicode screen on alt screen exit rather than
lazily rebuilding it from a lossy ... | ```diff
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 99f15b3e9544..b4b19157f05c 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1901,7 +1901,6 @@ static void leave_alt_screen(struct vc_data *vc)
unsigned int rows = min(vc->vc_saved_rows, vc->vc_rows);
unsigned int cols = min(vc->vc_sa... |
40014493cece72a0be5672cd86763e53fb3ec613 | Analyze and fix the following issue in the Linux kernel code: vt: discard stale unicode buffer on alt screen exit after resize | Problem Details:
When enter_alt_screen() saves vc_uni_lines into vc_saved_uni_lines and
sets vc_uni_lines to NULL, a subsequent console resize via vc_do_resize()
skips reallocating the unicode buffer because vc_uni_lines is NULL.
However, vc_saved_uni_lines still points to the old buffer allocated for
the original dime... | ```diff
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index e2df99e3d458..99f15b3e9544 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1901,6 +1901,7 @@ static void leave_alt_screen(struct vc_data *vc)
unsigned int rows = min(vc->vc_saved_rows, vc->vc_rows);
unsigned int cols = min(vc->vc_sa... |
e367599529dc42578545a7f85fde517b35b3cda7 | Analyze and fix the following issue in the Linux kernel code: usb: gadget: f_rndis: Fix net_device lifecycle with device_move | Problem Details:
The net_device is allocated during function instance creation and
registered during the bind phase with the gadget device as its sysfs
parent. When the function unbinds, the parent device is destroyed, but
the net_device survives, resulting in dangling sysfs symlinks:
console:/ # ls -l /sys/class/ne... | ```diff
diff --git a/drivers/usb/gadget/function/f_rndis.c b/drivers/usb/gadget/function/f_rndis.c
index 521b4619d6be..7de1c5f8e326 100644
--- a/drivers/usb/gadget/function/f_rndis.c
+++ b/drivers/usb/gadget/function/f_rndis.c
@@ -666,6 +666,7 @@ rndis_bind(struct usb_configuration *c, struct usb_function *f)
struc... |
06524cd1c9011bee141a87e43ab878641ed3652b | Analyze and fix the following issue in the Linux kernel code: usb: gadget: f_subset: Fix net_device lifecycle with device_move | Problem Details:
The net_device is allocated during function instance creation and
registered during the bind phase with the gadget device as its sysfs
parent. When the function unbinds, the parent device is destroyed, but
the net_device survives, resulting in dangling sysfs symlinks:
console:/ # ls -l /sys/class/ne... | ```diff
diff --git a/drivers/usb/gadget/function/f_subset.c b/drivers/usb/gadget/function/f_subset.c
index 74dc6da5c767..6e3265b8a3a0 100644
--- a/drivers/usb/gadget/function/f_subset.c
+++ b/drivers/usb/gadget/function/f_subset.c
@@ -299,25 +299,22 @@ geth_bind(struct usb_configuration *c, struct usb_function *f)
st... |
d9270c9a8118c1535409db926ac1e2545dc97b81 | Analyze and fix the following issue in the Linux kernel code: usb: gadget: f_eem: Fix net_device lifecycle with device_move | Problem Details:
The net_device is allocated during function instance creation and
registered during the bind phase with the gadget device as its sysfs
parent. When the function unbinds, the parent device is destroyed, but
the net_device survives, resulting in dangling sysfs symlinks:
console:/ # ls -l /sys/class/net/... | ```diff
diff --git a/drivers/usb/gadget/function/f_eem.c b/drivers/usb/gadget/function/f_eem.c
index 0142a0e487ee..ac37d7c1d168 100644
--- a/drivers/usb/gadget/function/f_eem.c
+++ b/drivers/usb/gadget/function/f_eem.c
@@ -7,6 +7,7 @@
* Copyright (C) 2009 EF Johnson Technologies
*/
+#include <linux/cleanup.h>
#i... |
b2cc4fae67a51f60d81d6af2678696accb07c656 | Analyze and fix the following issue in the Linux kernel code: usb: gadget: f_ecm: Fix net_device lifecycle with device_move | Problem Details:
The net_device is allocated during function instance creation and
registered during the bind phase with the gadget device as its sysfs
parent. When the function unbinds, the parent device is destroyed, but
the net_device survives, resulting in dangling sysfs symlinks:
console:/ # ls -l /sys/class/ne... | ```diff
diff --git a/drivers/usb/gadget/function/f_ecm.c b/drivers/usb/gadget/function/f_ecm.c
index e0c02121374e..e495bac4efeb 100644
--- a/drivers/usb/gadget/function/f_ecm.c
+++ b/drivers/usb/gadget/function/f_ecm.c
@@ -681,6 +681,7 @@ ecm_bind(struct usb_configuration *c, struct usb_function *f)
struct usb_ep *e... |
8d8c68b1fc06ece60cf43e1306ff0f4ac121547e | Analyze and fix the following issue in the Linux kernel code: usb: gadget: f_rndis: Protect RNDIS options with mutex | Problem Details:
The class/subclass/protocol options are suspectible to race conditions
as they can be accessed concurrently through configfs.
Use existing mutex to protect these options. This issue was identified
during code inspection.
Fixes: 73517cf49bd4 ("usb: gadget: add RNDIS configfs options for class/subclass... | ```diff
diff --git a/drivers/usb/gadget/function/f_rndis.c b/drivers/usb/gadget/function/f_rndis.c
index 8b11d8d6d89c..521b4619d6be 100644
--- a/drivers/usb/gadget/function/f_rndis.c
+++ b/drivers/usb/gadget/function/f_rndis.c
@@ -11,6 +11,7 @@
/* #define VERBOSE_DEBUG */
+#include <linux/cleanup.h>
#include <lin... |
caa27923aacd8a5869207842f2ab1657c6c0c7bc | Analyze and fix the following issue in the Linux kernel code: usb: gadget: f_subset: Fix unbalanced refcnt in geth_free | Problem Details:
geth_alloc() increments the reference count, but geth_free() fails to
decrement it. This prevents the configuration of attributes via configfs
after unlinking the function.
Decrement the reference count in geth_free() to ensure proper cleanup.
Fixes: 02832e56f88a ("usb: gadget: f_subset: add configfs... | ```diff
diff --git a/drivers/usb/gadget/function/f_subset.c b/drivers/usb/gadget/function/f_subset.c
index 076072386e5e..74dc6da5c767 100644
--- a/drivers/usb/gadget/function/f_subset.c
+++ b/drivers/usb/gadget/function/f_subset.c
@@ -6,6 +6,7 @@
* Copyright (C) 2008 Nokia Corporation
*/
+#include <linux/cleanup.... |
3b8ae9817686efb3ea789ca9d4efdff2ce9c1c04 | Analyze and fix the following issue in the Linux kernel code: usb: typec: thunderbolt: Set enter_vdo during initialization | Problem Details:
In the current implementation, if a cable's alternate mode enter operation
is not supported, the tbt->plug[TYPEC_PLUG_SOP_P] pointer is cleared by the
time tbt_enter_mode() is called. This prevents the driver from identifying
the cable's VDO.
As a result, the Thunderbolt connection falls back to the d... | ```diff
diff --git a/drivers/usb/typec/altmodes/thunderbolt.c b/drivers/usb/typec/altmodes/thunderbolt.c
index c4c5da6154da..32250b94262a 100644
--- a/drivers/usb/typec/altmodes/thunderbolt.c
+++ b/drivers/usb/typec/altmodes/thunderbolt.c
@@ -39,28 +39,7 @@ static bool tbt_ready(struct typec_altmode *alt);
static in... |
b65d4ca1d1059ace899170d1dfd02639ce971d2d | Analyze and fix the following issue in the Linux kernel code: usb: typec: Remove alt->adev.dev.class assignment | Problem Details:
The typec plug alternate mode is already registered as part of the bus.
When both class and bus are set for a device, device_add() attempts to
create the "subsystem" symlink in the device's sysfs directory twice, once
for the bus and once for the class.
This results in a duplicate filename error during... | ```diff
diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c
index 831430909471..0977581ad1b6 100644
--- a/drivers/usb/typec/class.c
+++ b/drivers/usb/typec/class.c
@@ -686,10 +686,6 @@ typec_register_altmode(struct device *parent,
alt->adev.dev.bus = &typec_bus;
- /* Plug alt modes need a class to ... |
9bb4b5ed7f8c4f95cc556bdf042b0ba2fa13557a | Analyze and fix the following issue in the Linux kernel code: usb: dwc2: gadget: Fix spin_lock/unlock mismatch in dwc2_hsotg_udc_stop() | Problem Details:
dwc2_gadget_exit_clock_gating() internally calls call_gadget() macro,
which expects hsotg->lock to be held since it does spin_unlock/spin_lock
around the gadget driver callback invocation.
However, dwc2_hsotg_udc_stop() calls dwc2_gadget_exit_clock_gating()
without holding the lock. This leads to:
- ... | ```diff
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index d216e26c787b..c8b02c27d27d 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -4607,7 +4607,9 @@ static int dwc2_hsotg_udc_stop(struct usb_gadget *gadget)
/* Exit clock gating when driver is stopped. */
if (hsotg... |
eba2936bbe6b752a31725a9eb5c674ecbf21ee7d | Analyze and fix the following issue in the Linux kernel code: usb: gadget: uvc: fix NULL pointer dereference during unbind race | Problem Details:
Commit b81ac4395bbe ("usb: gadget: uvc: allow for application to cleanly
shutdown") introduced two stages of synchronization waits totaling 1500ms
in uvc_function_unbind() to prevent several types of kernel panics.
However, this timing-based approach is insufficient during power
management (PM) transit... | ```diff
diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c
index 494fdbc4e85b..8d404d88391c 100644
--- a/drivers/usb/gadget/function/f_uvc.c
+++ b/drivers/usb/gadget/function/f_uvc.c
@@ -413,6 +413,12 @@ uvc_function_disconnect(struct uvc_device *uvc)
{
int ret;
+ guard(mutex)(&... |
dd36014ec6042f424ef51b923e607772f7502ee7 | Analyze and fix the following issue in the Linux kernel code: usb: quirks: add DELAY_INIT quirk for another Silicon Motion flash drive | Problem Details:
Another Silicon Motion flash drive also randomly work incorrectly
(lsusb does not list the device) on Huawei hisi platforms during
500 reboot cycles, and the DELAY_INIT quirk fixes this issue.
Signed-off-by: Miao Li <limiao@kylinos.cn>
Cc: stable <stable@kernel.org>
Link: https://patch.msgid.link/2026... | ```diff
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 5523a8e29021..26fed25da26e 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -401,6 +401,7 @@ static const struct usb_device_id usb_quirk_list[] = {
/* Silicon Motion Flash Drive */
{ USB_DEVICE(0x090c, 0x1000... |
679b771ea05ad0f8eeae83e14a91b8f4f39510c4 | Analyze and fix the following issue in the Linux kernel code: usb: ehci-brcm: fix sleep during atomic | Problem Details:
echi_brcm_wait_for_sof() gets called after disabling interrupts
in ehci_brcm_hub_control(). Use the atomic version of poll_timeout
to fix the warning.
Fixes: 9df231511bd6 ("usb: ehci: Add new EHCI driver for Broadcom STB SoC's")
Cc: stable <stable@kernel.org>
Signed-off-by: Justin Chen <justin.chen@br... | ```diff
diff --git a/drivers/usb/host/ehci-brcm.c b/drivers/usb/host/ehci-brcm.c
index 888e8f6670d2..5e3156f94cc6 100644
--- a/drivers/usb/host/ehci-brcm.c
+++ b/drivers/usb/host/ehci-brcm.c
@@ -31,8 +31,8 @@ static inline void ehci_brcm_wait_for_sof(struct ehci_hcd *ehci, u32 delay)
int res;
/* Wait for next mic... |
760e8c382c2de149b84e69fb60cccc32f6725a3f | Analyze and fix the following issue in the Linux kernel code: mtd: spi-nor: winbond: Fix locking support for w25q256jw | Problem Details:
The Winbond w25q256jw device:
- Supports lock/unlock via SR.
- Has Top/Bottom (TB) protect bit.
- Uses Status Register bit 6 as the Top/Bottom (TB) protect bit.
- Supports four Block Protect (BP) bits.
Update the flash parameters by enabling SPI_NOR_HAS_LOCK, SPI_NOR_HAS_TB,
SPI_NOR_TB_SR_BIT6 and... | ```diff
diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c
index 5a3e3ee96edb..eaa547d36aad 100644
--- a/drivers/mtd/spi-nor/winbond.c
+++ b/drivers/mtd/spi-nor/winbond.c
@@ -274,6 +274,7 @@ static const struct flash_info winbond_nor_parts[] = {
.id = SNOR_ID(0xef, 0x60, 0x19),
.name = "w2... |
81ebd43cc0d6d106ce7b6ccbf7b5e40ca7f5503d | Analyze and fix the following issue in the Linux kernel code: usb: gadget: f_hid: don't call cdev_init while cdev in use | Problem Details:
When calling unbind, then bind again, cdev_init reinitialized the cdev,
even though there may still be references to it. That's the case when
the /dev/hidg* device is still opened. This obviously unsafe behavior
like oopes.
This fixes this by using cdev_alloc to put the cdev on the heap. That
way, we ... | ```diff
diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c
index 8812ebf33d14..66be2e1282c1 100644
--- a/drivers/usb/gadget/function/f_hid.c
+++ b/drivers/usb/gadget/function/f_hid.c
@@ -106,7 +106,7 @@ struct f_hidg {
struct list_head report_list;
struct device dev;
- struc... |
6076388ca1eda808b95f9479f3b04839d348a2f7 | Analyze and fix the following issue in the Linux kernel code: usb: cdns3: Add USBSSP platform driver support | Problem Details:
The Cadence USBSSP (CDNSP) controller was previously only accessible
through PCI, coupling the gadget driver with the PCI glue layer into a
single monolithic module (cdnsp-udc-pci). This prevented using the
CDNSP IP on SoC/platform designs that expose the controller through
device tree. It restructures... | ```diff
diff --git a/drivers/usb/cdns3/Kconfig b/drivers/usb/cdns3/Kconfig
index 0a514b591527..97fa84dddbca 100644
--- a/drivers/usb/cdns3/Kconfig
+++ b/drivers/usb/cdns3/Kconfig
@@ -20,10 +20,6 @@ config USB_CDNS3
Say Y here if your system has a Cadence USB3 dual-role controller.
It supports: dual-role switch,... |
6b9db53197094f38a18797495df2e3c758ec51dc | Analyze and fix the following issue in the Linux kernel code: usb: typec: fusb302: Switch to threaded IRQ handler | Problem Details:
FUSB302 fails to probe with -EINVAL if its interrupt line is connected via
an I2C GPIO expander, such as TI TCA6416.
Switch the interrupt handler to a threaded one, which also works behind
such GPIO expanders.
Cc: stable <stable@kernel.org>
Fixes: 309b6341d557 ("usb: typec: fusb302: Revert incorrect ... | ```diff
diff --git a/drivers/usb/typec/tcpm/fusb302.c b/drivers/usb/typec/tcpm/fusb302.c
index ce7069fb4be6..889c4c29c1b8 100644
--- a/drivers/usb/typec/tcpm/fusb302.c
+++ b/drivers/usb/typec/tcpm/fusb302.c
@@ -1764,8 +1764,9 @@ static int fusb302_probe(struct i2c_client *client)
goto destroy_workqueue;
}
- ret ... |
5bda9c0261bce6a70bd7cb9afa0551c2fdf4ebc1 | Analyze and fix the following issue in the Linux kernel code: dt-bindings: vendor-prefixes: Add Hynetek Semiconductor Co., Ltd. | Problem Details:
Hynetek Semiconductor Co., Ltd. focuses on intelligent energy control
technology, mainly for the intelligent fast charging and digital energy
fields.
Link: https://en.hynetek.com/
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Alexey Charkov <alchark@flipper.net>
Link: https://patc... | ```diff
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index db654fd97b1d..20a39586e28c 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -747,6 +747,8 @@ patte... |
b683730e27ba4f91986c4c92f5cb7297f1e01a6d | Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm8250: Add missing CPU7 3.09GHz OPP | Problem Details:
This resolves the following error seen on the ASUS ROG Phone 3:
cpu cpu7: Voltage update failed freq=3091200
cpu cpu7: failed to update OPP for freq=3091200
Fixes: 8e0e8016cb79 ("arm64: dts: qcom: sm8250: Add CPU opp tables")
Signed-off-by: Alexander Koskovich <akoskovich@pm.me>
Reviewed-by: Konrad D... | ```diff
diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 15454f6c0f5d..7076720413ab 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -665,6 +665,11 @@
opp-hz = /bits/ 64 <2841600000>;
opp-peak-kBps = <8368000 51609600>;... |
181ea4e2de422aa0a66f355bd59bccccdd169826 | Analyze and fix the following issue in the Linux kernel code: xfs: start gc on zonegc_low_space attribute updates | Problem Details:
Start gc if the agressiveness of zone garbage collection is changed
by the user (if the file system is not read only).
Without this change, the new setting will not be taken into account
until the gc thread is woken up by e.g. a write.
Cc: stable@vger.kernel.org # v6.15
Fixes: 845abeb1f06a8a ("xfs: a... | ```diff
diff --git a/fs/xfs/xfs_sysfs.c b/fs/xfs/xfs_sysfs.c
index 6c7909838234..4527119b2961 100644
--- a/fs/xfs/xfs_sysfs.c
+++ b/fs/xfs/xfs_sysfs.c
@@ -14,6 +14,7 @@
#include "xfs_log_priv.h"
#include "xfs_mount.h"
#include "xfs_zones.h"
+#include "xfs_zone_alloc.h"
struct xfs_sysfs_attr {
struct attribute a... |
8166876aadef90744bb26addc9c5a16b1c8341b5 | Analyze and fix the following issue in the Linux kernel code: xfs: don't decrement the buffer LRU count for in-use buffers | Problem Details:
XFS buffers are added to the LRU when they are unused, but are only
removed from the LRU lazily when the LRU list scan finds a used buffer.
So far this only happen when the LRU counter hits 0, which is suboptimal
as buffers that were added to the LRU, but are in use again still consume
LRU scanning res... | ```diff
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index e4b65d0c9ef0..ee8c3944015a 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -1524,23 +1524,25 @@ xfs_buftarg_isolate(
return LRU_SKIP;
/*
- * Decrement the b_lru_ref count unless the value is already
- * zero. If the value is already zero, w... |
497560b9ef42a4ab22ada7f1ea975a89cd3c5dfa | Analyze and fix the following issue in the Linux kernel code: xfs: switch (back) to a per-buftarg buffer hash | Problem Details:
The per-AG buffer hashes were added when all buffer lookups took a
per-hash look. Since then we've made lookups entirely lockless and
removed the need for a hash-wide lock for inserts and removals as
well. With this there is no need to sharding the hash, so reduce the
used resources by using a per-bu... | ```diff
diff --git a/fs/xfs/libxfs/xfs_ag.c b/fs/xfs/libxfs/xfs_ag.c
index bd8fbb40b49e..dcd2f93b6a6c 100644
--- a/fs/xfs/libxfs/xfs_ag.c
+++ b/fs/xfs/libxfs/xfs_ag.c
@@ -110,10 +110,7 @@ xfs_perag_uninit(
struct xfs_group *xg)
{
#ifdef __KERNEL__
- struct xfs_perag *pag = to_perag(xg);
-
- cancel_delayed_work_sync... |
a0f64241d3566a49c0a9b33ba7ae458ae22003a9 | Analyze and fix the following issue in the Linux kernel code: mtd: spi-nor: sst: Fix write enable before AAI sequence | Problem Details:
When writing to SST flash starting at an odd address, a single byte is
first programmed using the byte program (BP) command. After this
operation completes, the flash hardware automatically clears the Write
Enable Latch (WEL) bit.
If an AAI (Auto Address Increment) word program sequence follows, it
re... | ```diff
diff --git a/drivers/mtd/spi-nor/sst.c b/drivers/mtd/spi-nor/sst.c
index 175211fe6a5e..db02c14ba16f 100644
--- a/drivers/mtd/spi-nor/sst.c
+++ b/drivers/mtd/spi-nor/sst.c
@@ -203,6 +203,8 @@ static int sst_nor_write(struct mtd_info *mtd, loff_t to, size_t len,
/* Start write from odd address. */
if (to % ... |
5eb130177693c3470cafaf721af41c60dd891cc7 | Analyze and fix the following issue in the Linux kernel code: mtd: spi-nor: winbond: Fix locking support for w25q64jvm | Problem Details:
The Winbond w25q64jvm supports block protection through the Status
Register (SR) and provides a Top/Bottom (TB) protection bit.
Enable SPI_NOR_HAS_LOCK and SPI_NOR_HAS_TB for this device to
properly describe its locking capabilities.
The device uses Status Register bit 5 as the TB bit and supports on... | ```diff
diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c
index 55f1209936d5..5a3e3ee96edb 100644
--- a/drivers/mtd/spi-nor/winbond.c
+++ b/drivers/mtd/spi-nor/winbond.c
@@ -295,6 +295,7 @@ static const struct flash_info winbond_nor_parts[] = {
.id = SNOR_ID(0xef, 0x70, 0x17),
.name = "w2... |
0f0b444be36c098d34a155bbe9e5a2f714a462fb | Analyze and fix the following issue in the Linux kernel code: mtd: spi-nor: winbond: Fix locking support for w25q256jwm | Problem Details:
The Winbond w25q256jwm device supports four Block Protect (BP) bits and
uses Status Register bit 6 as the Top/Bottom (TB) protect bit.
Update the flash parameters by enabling SPI_NOR_4BIT_BP and
SPI_NOR_TB_SR_BIT6. Without these flags, the locking configuration is
incorrect.
Reference:
https://www.wi... | ```diff
diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c
index fb855fe44733..55f1209936d5 100644
--- a/drivers/mtd/spi-nor/winbond.c
+++ b/drivers/mtd/spi-nor/winbond.c
@@ -337,7 +337,7 @@ static const struct flash_info winbond_nor_parts[] = {
.id = SNOR_ID(0xef, 0x80, 0x19),
.name = "w2... |
27c299698464c515c5cd97b4fcf1a0e38600b2ac | Analyze and fix the following issue in the Linux kernel code: ASoC: amd: yc: Add DMI quirk for ASUS Vivobook Pro 16X OLED M7601RM | Problem Details:
Add a DMI quirk for the ASUS Vivobook Pro 16X OLED M7601RM fixing the
issue where the internal microphone was not detected.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=221288
Signed-off-by: Zhang Heng <zhangheng@kylinos.cn>
Link: https://patch.msgid.link/20260330095133.81786-1-zhangheng@kylinos.... | ```diff
diff --git a/sound/soc/amd/yc/acp6x-mach.c b/sound/soc/amd/yc/acp6x-mach.c
index 6f1c105ca77e..87d6aeb78807 100644
--- a/sound/soc/amd/yc/acp6x-mach.c
+++ b/sound/soc/amd/yc/acp6x-mach.c
@@ -731,6 +731,13 @@ static const struct dmi_system_id yc_acp_quirk_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "Thin A15 B7V... |
2f4c5dea9a285cc24a80e9fef8d7014bffce967b | Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sc8280xp: Add dsi nodes on SC8280XP | Problem Details:
The DT configuration follows other Samsung 5nm-based Qualcomm SOCs,
utilizing the same register layouts and clock structures.
However, DSI won't work properly for now until we submit dispcc fixes.
And some DSC enabled panels require DPU timing calculation fixes too.
(hdisplay / width timing round erro... | ```diff
diff --git a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
index 7a65d8731725..761f229e8f47 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8280xp.dtsi
@@ -5,6 +5,7 @@
*/
#include <dt-bindings/clock/qcom,dispcc-sc8280xp.h>
+#include <dt... |
79772ce80eb9615b69b00e77135bbfc6e4b6f158 | Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: fix remaining gpu_zap_shader labels | Problem Details:
Most qcom DTs were converted to use the gpu_zap_shader label instead
of patching the gpu node in commit 2377626fd216 ("arm64: dts: qcom:
add gpu_zap_shader label"). This fixes the remaining ones.
Signed-off-by: Tobias Heider <tobias.heider@canonical.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov... | ```diff
diff --git a/arch/arm64/boot/dts/qcom/x1-microsoft-denali.dtsi b/arch/arm64/boot/dts/qcom/x1-microsoft-denali.dtsi
index 6ab595b6ea30..ae0507eb2402 100644
--- a/arch/arm64/boot/dts/qcom/x1-microsoft-denali.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1-microsoft-denali.dtsi
@@ -718,11 +718,11 @@
&gpu {
status = "o... |
16ba98dace9e7cfe25ad8a314e34befacd91f86f | Analyze and fix the following issue in the Linux kernel code: clk: qcom: gdsc: Fix error path on registration of multiple pm subdomains | Problem Details:
Some pm subdomains may be left in added to a parent domain state, if
gdsc_add_subdomain_list() function fails in the middle and bails from
a GDSC power domain controller registration out.
Fixes: b489235b4dc0 ("clk: qcom: Support attaching GDSCs to multiple parents")
Signed-off-by: Vladimir Zapolskiy <... | ```diff
diff --git a/drivers/clk/qcom/gdsc.c b/drivers/clk/qcom/gdsc.c
index 7deabf8400cf..95aa07120245 100644
--- a/drivers/clk/qcom/gdsc.c
+++ b/drivers/clk/qcom/gdsc.c
@@ -518,10 +518,20 @@ static int gdsc_add_subdomain_list(struct dev_pm_domain_list *pd_list,
ret = pm_genpd_add_subdomain(genpd, subdomain);
... |
25e7cc37cff444030250abea1ba875c26ff59e9a | Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: msm8996: fix indentation in sdhc2 node | Problem Details:
Drop stray leading whitespace from sdhc2 node.
No functional change.
Signed-off-by: Christopher Obbard <christopher.obbard@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260329-wip-obbardc-msm8996-whitespace-v1-1-ba3a278f043c@linaro.org... | ```diff
diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index 9d4ce47578fb..2f67e665996f 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -3255,7 +3255,7 @@
bus-width = <4>;
status = "disabled";
- };
+ };
blsp1... |
e46b48b853122626806d989d5db4ce97eaaac2ca | Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: milos: Add missing CX power domain to GCC | Problem Details:
Unless CX is declared as the power-domain of GCC, votes (power and
performance) on the GDSCs it provides will not propagate to the CX,
which might result in under-voltage conditions.
Add the missing power-domains property to associate GCC with RPMHPD_CX.
Fixes: d9d59d105f98 ("arm64: dts: qcom: Add in... | ```diff
diff --git a/arch/arm64/boot/dts/qcom/milos.dtsi b/arch/arm64/boot/dts/qcom/milos.dtsi
index 67f8ef4d524a..eec82a69ddc2 100644
--- a/arch/arm64/boot/dts/qcom/milos.dtsi
+++ b/arch/arm64/boot/dts/qcom/milos.dtsi
@@ -804,6 +804,8 @@
<&ufs_mem_phy 2>,
<0>; /* usb3_phy_wrapper_gcc_usb30_pipe_clk */
+ ... |
c412c6b13e2b17bf6a8573a113634f69982e2b0e | Analyze and fix the following issue in the Linux kernel code: dt-bindings: clock: qcom: Add missing power-domains property | Problem Details:
In order for the GCC votes on the GDSCs it provides to be propagated
to CX, CX needs to be declared as power domain of the GCC.
Document the missing power-domains property to that purpose.
Fixes: 95ba6820a665 ("dt-bindings: clock: qcom: document the Milos Global Clock Controller")
Signed-off-by: Abel... | ```diff
diff --git a/Documentation/devicetree/bindings/clock/qcom,milos-gcc.yaml b/Documentation/devicetree/bindings/clock/qcom,milos-gcc.yaml
index 60f1c8ca2c13..c65a6ad893d2 100644
--- a/Documentation/devicetree/bindings/clock/qcom,milos-gcc.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,milos-gcc.yaml
@@ -3... |
cd3c4670db3ffe997be9548c7a9db3952563cf14 | Analyze and fix the following issue in the Linux kernel code: soc: qcom: aoss: compare against normalized cooling state | Problem Details:
qmp_cdev_set_cur_state() normalizes the requested state to a boolean
(cdev_state = !!state). The existing early-return check compares
qmp_cdev->state == state, which can be wrong if state is non-boolean
(any non-zero value). Compare qmp_cdev->state against cdev_state instead,
so the check matches the e... | ```diff
diff --git a/drivers/soc/qcom/qcom_aoss.c b/drivers/soc/qcom/qcom_aoss.c
index a543ab9bee6c..c255662b8fc3 100644
--- a/drivers/soc/qcom/qcom_aoss.c
+++ b/drivers/soc/qcom/qcom_aoss.c
@@ -355,7 +355,7 @@ static int qmp_cdev_set_cur_state(struct thermal_cooling_device *cdev,
/* Normalize state */
cdev_state =... |
24e7625df5ce065393249b78930781be593bc381 | Analyze and fix the following issue in the Linux kernel code: soc: qcom: llcc: fix v1 SB syndrome register offset | Problem Details:
The llcc_v1_edac_reg_offset table uses 0x2304c for trp_ecc_sb_err_syn0,
which is inconsistent with the surrounding TRP ECC registers (0x2034x)
and with llcc_v2_1_edac_reg_offset, where trp_ecc_sb_err_syn0 is 0x2034c
adjacent to trp_ecc_error_status0/1 at 0x20344/0x20348.
Use 0x2034c for llcc v1 so the... | ```diff
diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c
index 68a3416692e0..0161ceec8842 100644
--- a/drivers/soc/qcom/llcc-qcom.c
+++ b/drivers/soc/qcom/llcc-qcom.c
@@ -4030,7 +4030,7 @@ static const struct llcc_slice_config x1e80100_data[] = {
static const struct llcc_edac_reg_offset llcc_v1... |
802c51a83e9a0617d1e97ecd383471f4c6fd5437 | Analyze and fix the following issue in the Linux kernel code: gpiolib: fix hogs with multiple lines | Problem Details:
After moving GPIO hog handling into GPIOLIB core, we accidentally stopped
supporting devicetree hog definitions with multiple lines like so:
hog {
gpio-hog;
gpios = <3 0>, <4 GPIO_ACTIVE_LOW>;
output-high;
line-name = "foo";
};
Restore this functionality to fix reported regressions.
Fixes:... | ```diff
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 9130f2e001ac..076b7cfe2a1c 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -938,12 +938,18 @@ int gpiochip_add_hog(struct gpio_chip *gc, struct fwnode_handle *fwnode)
struct fwnode_handle *gc_node = dev_fwnode(&gc->gpiodev-... |
11b72b1ca9891c77bc876ef9fc39d6825847ffee | Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: hamoa: Fix incomplete Root Port property migration | Problem Details:
Historically, the Qualcomm PCIe controller node (Host bridge) described
all Root Port properties, such as PHY, PERST#, and WAKE#. But to provide
a more accurate hardware description and to support future multi-Root Port
controllers, these properties were moved to the Root Port node in the
devicetree bi... | ```diff
diff --git a/arch/arm64/boot/dts/qcom/x1-asus-zenbook-a14.dtsi b/arch/arm64/boot/dts/qcom/x1-asus-zenbook-a14.dtsi
index 8e5c5575a532..0a382cc9e643 100644
--- a/arch/arm64/boot/dts/qcom/x1-asus-zenbook-a14.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1-asus-zenbook-a14.dtsi
@@ -1032,9 +1032,6 @@
};
&pcie4 {
- perst... |
56b7432b7e8e6ae1b289cb405d16db4150ef193b | Analyze and fix the following issue in the Linux kernel code: drm/xe: Avoid memory allocations in xe_device_declare_wedged() | Problem Details:
xe_device_declare_wedged() runs in the DMA-fence signaling path, where
GFP_KERNEL memory allocations are not allowed. However, registering
xe_device_wedged_fini via drmm_add_action_or_reset() triggers a
GFP_KERNEL allocation.
Fix this by deferring the registration of xe_device_wedged_fini until
late i... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
index 52ee24e9cd3a..3eb06b27db7e 100644
--- a/drivers/gpu/drm/xe/xe_device.c
+++ b/drivers/gpu/drm/xe/xe_device.c
@@ -837,6 +837,14 @@ static void detect_preproduction_hw(struct xe_device *xe)
}
}
+static void xe_device_wedged_fin... |
bce7cd6db2386e7a2b49ad3c09df0beabddfa3c4 | Analyze and fix the following issue in the Linux kernel code: drm/xe: Disable garbage collector work item on SVM close | Problem Details:
When an SVM is closed, the garbage collector work item must be stopped
synchronously and any future queuing must be prevented. Replace
flush_work() with disable_work_sync() to ensure both conditions are
met.
Fixes: 63f6e480d115 ("drm/xe: Add SVM garbage collector")
Cc: stable@vger.kernel.org
Signed-of... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_svm.c b/drivers/gpu/drm/xe/xe_svm.c
index ca67d0bdbfac..c6b92d4ea6f4 100644
--- a/drivers/gpu/drm/xe/xe_svm.c
+++ b/drivers/gpu/drm/xe/xe_svm.c
@@ -903,7 +903,7 @@ int xe_svm_init(struct xe_vm *vm)
void xe_svm_close(struct xe_vm *vm)
{
xe_assert(vm->xe, xe_vm_is_closed(vm)... |
e3fb579872a8d9cf264c52710d5839de3afa6fc1 | Analyze and fix the following issue in the Linux kernel code: drm/xe/pxp: Don't allow PXP on older PTL GSC FWs | Problem Details:
On PTL, older GSC FWs have a bug that can cause them to crash during
PXP invalidation events, which leads to a complete loss of power
management on the media GT. Therefore, we can't use PXP on FWs that
have this bug, which was fixed in PTL GSC build 1396.
Fixes: b1dcec9bd8a1 ("drm/xe/ptl: Enable PXP f... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_pxp.c b/drivers/gpu/drm/xe/xe_pxp.c
index 088a1ab75f70..872217f30375 100644
--- a/drivers/gpu/drm/xe/xe_pxp.c
+++ b/drivers/gpu/drm/xe/xe_pxp.c
@@ -380,6 +380,18 @@ int xe_pxp_init(struct xe_device *xe)
return 0;
}
+ /*
+ * On PTL, older GSC FWs have a bug that can cau... |
76903b2057c8677c2c006e87fede15f496555dc0 | Analyze and fix the following issue in the Linux kernel code: drm/xe/pxp: Clear restart flag in pxp_start after jumping back | Problem Details:
If we don't clear the flag we'll keep jumping back at the beginning of
the function once we reach the end.
Fixes: ccd3c6820a90 ("drm/xe/pxp: Decouple queue addition from PXP start")
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Julia Filipchuk <julia.filipchuk@intel.com>
... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_pxp.c b/drivers/gpu/drm/xe/xe_pxp.c
index fa82d606953e..088a1ab75f70 100644
--- a/drivers/gpu/drm/xe/xe_pxp.c
+++ b/drivers/gpu/drm/xe/xe_pxp.c
@@ -512,7 +512,7 @@ static int __exec_queue_add(struct xe_pxp *pxp, struct xe_exec_queue *q)
static int pxp_start(struct xe_pxp *pxp... |
4fed244954c2dc9aafa333d08f66b14345225e03 | Analyze and fix the following issue in the Linux kernel code: drm/xe/pxp: Remove incorrect handling of impossible state during suspend | Problem Details:
The default case of the PXP suspend switch is incorrectly exiting
without releasing the lock. However, this case is impossible to hit
because we're switching on an enum and all the valid enum values have
their own cases. Therefore, we can just get rid of the default case
and rely on the compiler to war... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_pxp.c b/drivers/gpu/drm/xe/xe_pxp.c
index 782281dbe9e0..fa82d606953e 100644
--- a/drivers/gpu/drm/xe/xe_pxp.c
+++ b/drivers/gpu/drm/xe/xe_pxp.c
@@ -871,11 +871,6 @@ wait_for_activation:
pxp->key_instance++;
needs_queue_inval = true;
break;
- default:
- drm_err(&pxp->... |
e2628e670bb0923fcdc00828bfcd67b26a7df020 | Analyze and fix the following issue in the Linux kernel code: drm/xe/pxp: Clean up termination status on failure | Problem Details:
If the PXP HW termination fails during PXP start, the normal completion
code won't be called, so the termination will remain uncomplete. To avoid
unnecessary waits, mark the termination as completed from the error path.
Note that we already do this if the termination fails when handling a
termination i... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_pxp.c b/drivers/gpu/drm/xe/xe_pxp.c
index d61446bf9c19..782281dbe9e0 100644
--- a/drivers/gpu/drm/xe/xe_pxp.c
+++ b/drivers/gpu/drm/xe/xe_pxp.c
@@ -583,6 +583,7 @@ wait_for_idle:
drm_err(&pxp->xe->drm, "PXP termination failed before start\n");
mutex_lock(&pxp->mutex);
... |
7b9a3a910e96f20b101b0df6b1f5c77b023a4097 | Analyze and fix the following issue in the Linux kernel code: drm/xe/madvise: Accept canonical GPU addresses in xe_vm_madvise_ioctl | Problem Details:
Userspace passes canonical (sign-extended) GPU addresses where bits 63:48
mirror bit 47. The internal GPUVM uses non-canonical form (upper bits
zeroed), so passing raw canonical addresses into GPUVM lookups causes
mismatches for addresses above 128TiB.
Strip the sign extension with xe_device_uncanonic... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_vm_madvise.c b/drivers/gpu/drm/xe/xe_vm_madvise.c
index bc39a9a9790c..b4086129a364 100644
--- a/drivers/gpu/drm/xe/xe_vm_madvise.c
+++ b/drivers/gpu/drm/xe/xe_vm_madvise.c
@@ -408,8 +408,15 @@ int xe_vm_madvise_ioctl(struct drm_device *dev, void *data, struct drm_file *fil
s... |
6d192b4f2d644d15d9a9f1d33dab05af936f6540 | Analyze and fix the following issue in the Linux kernel code: drm/xe/xe_pagefault: Disallow writes to read-only VMAs | Problem Details:
The page fault handler should reject write/atomic access to read only
VMAs. Add code to handle this in xe_pagefault_service after the VMA
lookup.
v2:
- Apply max line length (Matthew)
Fixes: fb544b844508 ("drm/xe: Implement xe_pagefault_queue_work")
Signed-off-by: Jonathan Cavitt <jonathan.cavitt@in... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_pagefault.c b/drivers/gpu/drm/xe/xe_pagefault.c
index 6bee53d6ffc3..922a4f3344b1 100644
--- a/drivers/gpu/drm/xe/xe_pagefault.c
+++ b/drivers/gpu/drm/xe/xe_pagefault.c
@@ -187,6 +187,12 @@ static int xe_pagefault_service(struct xe_pagefault *pf)
goto unlock_vm;
}
+ if (... |
534025950c9fe4dfbe476b3938d73a26814047d1 | Analyze and fix the following issue in the Linux kernel code: spi: stm32-ospi: Fix DMA channel leak on stm32_ospi_dma_setup() failure | Problem Details:
When stm32_ospi_dma_setup() fails, the DMA channels allocated by
stm32_ospi_get_resources() were never released. Add proper cleanup
in the error path.
Fixes: e35a7607e05d ("spi: stm32-ospi: Set DMA maxburst dynamically")
Signed-off-by: Felix Gu <ustc.gu@gmail.com>
Reviewed-by: Patrice Chotard <patrice... | ```diff
diff --git a/drivers/spi/spi-stm32-ospi.c b/drivers/spi/spi-stm32-ospi.c
index c9f92e85253f..38405f8f547f 100644
--- a/drivers/spi/spi-stm32-ospi.c
+++ b/drivers/spi/spi-stm32-ospi.c
@@ -928,7 +928,7 @@ static int stm32_ospi_probe(struct platform_device *pdev)
dma_cfg.dst_addr = ospi->regs_phys_base + OSPI_DR... |
5a570c8d6e55689253f6fcc4a198c56cca7e39d6 | Analyze and fix the following issue in the Linux kernel code: spi: stm32-ospi: Fix reset control leak on probe error | Problem Details:
When spi_register_controller() fails after reset_control_acquire()
succeeds, the reset control is never released. This causes a resource
leak in the error path.
Add the missing reset_control_release() call in the error path.
Fixes: cf2c3eceb757 ("spi: stm32-ospi: Make usage of reset_control_acquire/r... | ```diff
diff --git a/drivers/spi/spi-stm32-ospi.c b/drivers/spi/spi-stm32-ospi.c
index 2baf651c0a6d..c9f92e85253f 100644
--- a/drivers/spi/spi-stm32-ospi.c
+++ b/drivers/spi/spi-stm32-ospi.c
@@ -965,13 +965,15 @@ static int stm32_ospi_probe(struct platform_device *pdev)
if (ret) {
/* Disable ospi */
writel_rela... |
73cd1f97946ae3796544448ff12c07f399bb2881 | Analyze and fix the following issue in the Linux kernel code: spi: stm32-ospi: Fix resource leak in remove() callback | Problem Details:
The remove() callback returned early if pm_runtime_resume_and_get()
failed, skipping the cleanup of spi controller and other resources.
Remove the early return so cleanup completes regardless of PM resume
result.
Fixes: 79b8a705e26c ("spi: stm32: Add OSPI driver")
Signed-off-by: Felix Gu <ustc.gu@gma... | ```diff
diff --git a/drivers/spi/spi-stm32-ospi.c b/drivers/spi/spi-stm32-ospi.c
index c98afe02a1b6..2baf651c0a6d 100644
--- a/drivers/spi/spi-stm32-ospi.c
+++ b/drivers/spi/spi-stm32-ospi.c
@@ -989,11 +989,8 @@ err_pm_enable:
static void stm32_ospi_remove(struct platform_device *pdev)
{
struct stm32_ospi *ospi = p... |
917e3ad3321e75ca0223d5ccf26ceda116aa51e1 | Analyze and fix the following issue in the Linux kernel code: x86/kexec: Disable KCOV instrumentation after load_segments() | Problem Details:
The load_segments() function changes segment registers, invalidating GS base
(which KCOV relies on for per-cpu data). When CONFIG_KCOV is enabled, any
subsequent instrumented C code call (e.g. native_gdt_invalidate()) begins
crashing the kernel in an endless loop.
To reproduce the problem, it's suffic... | ```diff
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index e9aeeeafad17..47a32f583930 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -44,6 +44,20 @@ KCOV_INSTRUMENT_unwind_orc.o := n
KCOV_INSTRUMENT_unwind_frame.o := n
KCOV_INSTRUMENT_unwind_guess.o := n
+# Disa... |
f1af71d568e55536d9297bfa7907ad497108cf30 | Analyze and fix the following issue in the Linux kernel code: ALSA: hda/realtek: Add quirk for ASUS ROG Strix SCAR 15 | Problem Details:
ASUS ROG Strix SCAR 15, like the Strix G15, requires the
ALC285_FIXUP_ASUS_G533Z_PINS quirk to work properly.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=221247
Cc: <stable@vger.kernel.org>
Signed-off-by: Zhang Heng <zhangheng@kylinos.cn>
Link: https://patch.msgid.link/20260330075334.50962-2-zha... | ```diff
diff --git a/sound/hda/codecs/realtek/alc269.c b/sound/hda/codecs/realtek/alc269.c
index 78ab0e86621b..c14046e09aa4 100644
--- a/sound/hda/codecs/realtek/alc269.c
+++ b/sound/hda/codecs/realtek/alc269.c
@@ -7269,6 +7269,7 @@ static const struct hda_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x1043, 0x1533, "A... |
6771c54728c278bf1e4bfdab4fddbbb186e33498 | Analyze and fix the following issue in the Linux kernel code: powerpc/xive: fix kmemleak caused by incorrect chip_data lookup | Problem Details:
The kmemleak reports the following memory leak:
Unreferenced object 0xc0000002a7fbc640 (size 64):
comm "kworker/8:1", pid 540, jiffies 4294937872
hex dump (first 32 bytes):
01 00 00 00 00 00 00 00 00 00 09 04 00 04 00 00 ................
00 00 a7 81 00 00 0a c0 00 00 08 04 00 04 00 00 ..... | ```diff
diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c
index e1a4f8a97393..6b1b7541ca31 100644
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@@ -1038,13 +1038,19 @@ static struct xive_irq_data *xive_irq_alloc_data(unsigned int virq, irq_hw_numbe
re... |
948b71aa81cd89b222942db6055e8d9c51c54e78 | Analyze and fix the following issue in the Linux kernel code: drivers/vfio_pci_core: Change PXD_ORDER check from switch case to if/else block | Problem Details:
Architectures like PowerPC uses runtime defined values for
PMD_ORDER/PUD_ORDER. This is because it can use either RADIX or HASH MMU
at runtime using kernel cmdline. So the pXd_index_size is not known at
compile time. Without this fix, when we add huge pfn support on powerpc
in the next patch, vfio_pci_... | ```diff
diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c
index d43745fe4c84..0967307235b8 100644
--- a/drivers/vfio/pci/vfio_pci_core.c
+++ b/drivers/vfio/pci/vfio_pci_core.c
@@ -1670,21 +1670,16 @@ vm_fault_t vfio_pci_vmf_insert_pfn(struct vfio_pci_core_device *vdev,
if (vdev->pm_runt... |
a1cf2bd5b6424ead3d75d09c822f665907094a80 | Analyze and fix the following issue in the Linux kernel code: dm vdo: Fix spelling mistake "postive" -> "positive" | Problem Details:
There is a spelling mistake in a vdo_log_error message. Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> | ```diff
diff --git a/drivers/md/dm-vdo/dm-vdo-target.c b/drivers/md/dm-vdo/dm-vdo-target.c
index 0135a6f941fd..1d8375cc3c3e 100644
--- a/drivers/md/dm-vdo/dm-vdo-target.c
+++ b/drivers/md/dm-vdo/dm-vdo-target.c
@@ -412,7 +412,7 @@ static int __must_check parse_memory(const char *memory_str,
result = kstrtouint(mem... |
6e1a833df9524e05889cf0fe02879b02d85776fd | Analyze and fix the following issue in the Linux kernel code: gfs2: bufdata allocation race | Problem Details:
The locking in gfs2_trans_add_data() and gfs2_trans_add_meta() doesn't
follow the usual coding pattern of checking bh->b_private under lock,
allocating a new bufdata object with the locks dropped, and re-checking
once the lock has been reacquired. Both functions set bh->b_private
without holding the b... | ```diff
diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c
index 0ded2d63dbbb..65cbe06e301a 100644
--- a/fs/gfs2/trans.c
+++ b/fs/gfs2/trans.c
@@ -176,7 +176,6 @@ static struct gfs2_bufdata *gfs2_alloc_bufdata(struct gfs2_glock *gl,
INIT_LIST_HEAD(&bd->bd_list);
INIT_LIST_HEAD(&bd->bd_ail_st_list);
INIT_LIST_HEAD(&bd... |
df03d7c2bbc91d1e83f8b42881ad791353df7d94 | Analyze and fix the following issue in the Linux kernel code: drm/xe: Document GT statistics | Problem Details:
In the context of porting applications to SVM, the Xe GT statistics are
used by application developers to validate expected behavior such as
proper alignment, page fault count and migrations. As those statistics
are made for kernel developers, they assume good understanding of driver
internals, which i... | ```diff
diff --git a/Documentation/gpu/xe/index.rst b/Documentation/gpu/xe/index.rst
index bc432c95d1a3..874ffcb6da3a 100644
--- a/Documentation/gpu/xe/index.rst
+++ b/Documentation/gpu/xe/index.rst
@@ -29,3 +29,4 @@ DG2, etc is provided to prototype the driver.
xe_device
xe-drm-usage-stats.rst
xe_configfs
... |
2f42c1a6161646cbd29b443459fd635d29eda634 | Analyze and fix the following issue in the Linux kernel code: drm/ast: dp501: Fix initialization of SCU2C | Problem Details:
Ast's DP501 initialization reads the register SCU2C at offset 0x1202c
and tries to set it to source data from VGA. But writes the update to
offset 0x0, with unknown results. Write the result to SCU instead.
The bug only happens in ast_init_analog(). There's similar code in
ast_init_dvo(), which works ... | ```diff
diff --git a/drivers/gpu/drm/ast/ast_dp501.c b/drivers/gpu/drm/ast/ast_dp501.c
index 9e19d8c17730..677c52c0d99a 100644
--- a/drivers/gpu/drm/ast/ast_dp501.c
+++ b/drivers/gpu/drm/ast/ast_dp501.c
@@ -436,7 +436,7 @@ static void ast_init_analog(struct ast_device *ast)
/* Finally, clear bits [17:16] of SCU2c */
... |
a216e24fc947573bfbd56471bd7c1f1d8c7a2b19 | Analyze and fix the following issue in the Linux kernel code: RISC-V: KVM: Fix lost write protection on huge pages during dirty logging | Problem Details:
When enabling dirty log in small chunks (e.g., QEMU default chunk
size of 256K), the chunk size is always smaller than the page size
of huge pages (1G or 2M) used in the gstage page tables. This caused
the write protection to be incorrectly skipped for huge PTEs because
the condition `(end - addr) >= p... | ```diff
diff --git a/arch/riscv/kvm/gstage.c b/arch/riscv/kvm/gstage.c
index b67d60d722c2..d2001d508046 100644
--- a/arch/riscv/kvm/gstage.c
+++ b/arch/riscv/kvm/gstage.c
@@ -304,10 +304,9 @@ void kvm_riscv_gstage_wp_range(struct kvm_gstage *gstage, gpa_t start, gpa_t end
if (!found_leaf)
goto next;
- if (!(a... |
fe8933c5b3e2e5294f82da546792268e5687391e | Analyze and fix the following issue in the Linux kernel code: pinctrl: qcom: eliza: Fix interrupt target bit | Problem Details:
The intr_target_bit for Eliza was incorrectly set to 5, which is the
value used by older Qualcomm SoCs (e.g. SM8250, MSM8996, X1E80100).
Newer SoCs such as SM8650, SM8750, Milos, and Kaanapali all use
bit 8 for the interrupt target field in the TLMM interrupt configuration
register.
Eliza belongs to t... | ```diff
diff --git a/drivers/pinctrl/qcom/pinctrl-eliza.c b/drivers/pinctrl/qcom/pinctrl-eliza.c
index 1a2e6461a69b..19c706137f81 100644
--- a/drivers/pinctrl/qcom/pinctrl-eliza.c
+++ b/drivers/pinctrl/qcom/pinctrl-eliza.c
@@ -47,7 +47,7 @@
.intr_status_bit = 0, \
.intr_wakeup_present_bit = 6, \
.intr_wakeup_... |
6b5ef8c88854b343b733b574ea8754c9dab61f41 | Analyze and fix the following issue in the Linux kernel code: dt-bindings: gpio: fix microchip #interrupt-cells | Problem Details:
The GPIO controller on PolarFire SoC supports more than one type of
interrupt and needs two interrupt cells.
Fixes: 735806d8a68e9 ("dt-bindings: gpio: add bindings for microchip mpfs gpio")
Signed-off-by: Jamie Gibbons <jamie.gibbons@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.c... | ```diff
diff --git a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml b/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
index 184432d24ea1..f42c54653d52 100644
--- a/Documentation/devicetree/bindings/gpio/microchip,mpfs-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/microchip,mpfs... |
310a4a9cbb17037668ea440f6a3964d00705b400 | Analyze and fix the following issue in the Linux kernel code: gpio: shared: shorten the critical section in gpiochip_setup_shared() | Problem Details:
Commit 710abda58055 ("gpio: shared: call gpio_chip::of_xlate() if set")
introduced a critical section around the adjustmenet of entry->offset.
However this may cause a deadlock if we create the auxiliary shared
proxy devices with this lock taken. We only need to protect
entry->offset while it's read/wr... | ```diff
diff --git a/drivers/gpio/gpiolib-shared.c b/drivers/gpio/gpiolib-shared.c
index e257212fa5e3..e02d6b93a4ab 100644
--- a/drivers/gpio/gpiolib-shared.c
+++ b/drivers/gpio/gpiolib-shared.c
@@ -533,48 +533,48 @@ int gpiochip_setup_shared(struct gpio_chip *gc)
* exposing shared pins. Find them and create the pro... |
1762ac42eed653557d2feb9e37f45995ac238ce6 | Analyze and fix the following issue in the Linux kernel code: RISC-V: KVM: Fix integer overflow in kvm_pmu_validate_counter_mask() | Problem Details:
When a guest initiates an SBI_EXT_PMU_COUNTER_CFG_MATCH call with
ctr_base=0xfffffffffffffffe, ctr_mask=0xeb5f and flags=0x1
(SBI_PMU_CFG_FLAG_SKIP_MATCH), kvm_riscv_vcpu_pmu_ctr_cfg_match()
first invokes kvm_pmu_validate_counter_mask() to verify whether
ctr_base and ctr_mask are valid, by evaluating:
... | ```diff
diff --git a/arch/riscv/kvm/vcpu_pmu.c b/arch/riscv/kvm/vcpu_pmu.c
index bb6380ec7fc4..49427094a079 100644
--- a/arch/riscv/kvm/vcpu_pmu.c
+++ b/arch/riscv/kvm/vcpu_pmu.c
@@ -280,8 +280,10 @@ static int pmu_ctr_read(struct kvm_vcpu *vcpu, unsigned long cidx,
static int kvm_pmu_validate_counter_mask(struct kvm_... |
3d48c9fd78dd0b1809669ec49c4d0997b8127512 | Analyze and fix the following issue in the Linux kernel code: dma-debug: suppress cacheline overlap warning when arch has no DMA alignment requirement | Problem Details:
When CONFIG_DMA_API_DEBUG is enabled, the DMA debug infrastructure
tracks active mappings per cacheline and warns if two different DMA
mappings share the same cacheline ("cacheline tracking EEXIST,
overlapping mappings aren't supported").
On x86_64, ARCH_KMALLOC_MINALIGN defaults to 8, so small kmallo... | ```diff
diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c
index 0677918f06a8..1a725edbbbf6 100644
--- a/kernel/dma/debug.c
+++ b/kernel/dma/debug.c
@@ -615,6 +615,7 @@ static void add_dma_entry(struct dma_debug_entry *entry, unsigned long attrs)
} else if (rc == -EEXIST &&
!(attrs & DMA_ATTR_SKIP_CPU_SYNC) &... |
4ec93f070eda6b765b62efcaed9241c3b3b0b6ad | Analyze and fix the following issue in the Linux kernel code: ALSA: aoa: i2sbus: fix OF node lifetime handling | Problem Details:
i2sbus_add_dev() keeps the matched "sound" child pointer after
for_each_child_of_node() has dropped the iterator reference. Take an
extra reference before saving that node and drop it after the
layout-id/device-id lookup is complete.
The function also stores np in dev->sound.ofdev.dev.of_node without
... | ```diff
diff --git a/sound/aoa/soundbus/i2sbus/core.c b/sound/aoa/soundbus/i2sbus/core.c
index 22c956267f4e..833c44c0a950 100644
--- a/sound/aoa/soundbus/i2sbus/core.c
+++ b/sound/aoa/soundbus/i2sbus/core.c
@@ -84,6 +84,7 @@ static void i2sbus_release_dev(struct device *dev)
for (i = aoa_resource_i2smmio; i <= aoa_re... |
472571498baaa67b6ea70d6c0154730be3da3c36 | Analyze and fix the following issue in the Linux kernel code: ALSA: hda/cs8409: Fix error message in cs8409_i2c_bulk_read() | Problem Details:
The error message in cs8409_i2c_bulk_read() incorrectly says "I2C Bulk
Write Failed" when it should say "I2C Bulk Read Failed". This is a
copy-paste error from cs8409_i2c_bulk_write().
Signed-off-by: wangdicheng <wangdicheng@kylinos.cn>
Link: https://patch.msgid.link/20260330054131.434994-1-wangdich97... | ```diff
diff --git a/sound/hda/codecs/cirrus/cs8409.c b/sound/hda/codecs/cirrus/cs8409.c
index fad705092777..2d8f482e6474 100644
--- a/sound/hda/codecs/cirrus/cs8409.c
+++ b/sound/hda/codecs/cirrus/cs8409.c
@@ -268,7 +268,7 @@ static int cs8409_i2c_bulk_read(struct sub_codec *scodec, struct cs8409_i2c_para
return 0;
... |
f025ac8c698ac7d29eb3b5025bcdaf7ad675785d | Analyze and fix the following issue in the Linux kernel code: ALSA: usb-audio: Exclude Scarlett Solo 1st Gen from SKIP_IFACE_SETUP | Problem Details:
Same issue that the Scarlett 2i2 1st Gen had:
QUIRK_FLAG_SKIP_IFACE_SETUP causes distorted audio on the
Scarlett Solo 1st Gen (1235:801c).
Fixes: 38c322068a26 ("ALSA: usb-audio: Add QUIRK_FLAG_SKIP_IFACE_SETUP")
Reported-by: Dag Smedberg <dag@dsmedberg.se>
Tested-by: Dag Smedberg <dag@dsmedberg.se>
Si... | ```diff
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 6e40c18c37f9..116da076a194 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -2435,6 +2435,7 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
QUIRK_FLAG_VALIDATE_RATES),
DEVICE_FLG(0x1235, 0x8006, 0), /* Focus... |
45424e871abf2a152e247a9cff78359f18dd95c0 | Analyze and fix the following issue in the Linux kernel code: ALSA: caiaq: fix stack out-of-bounds read in init_card | Problem Details:
The loop creates a whitespace-stripped copy of the card shortname
where `len < sizeof(card->id)` is used for the bounds check. Since
sizeof(card->id) is 16 and the local id buffer is also 16 bytes,
writing 16 non-space characters fills the entire buffer,
overwriting the terminating nullbyte.
When this... | ```diff
diff --git a/sound/usb/caiaq/device.c b/sound/usb/caiaq/device.c
index dfd820483849..3a71bab8a477 100644
--- a/sound/usb/caiaq/device.c
+++ b/sound/usb/caiaq/device.c
@@ -488,7 +488,7 @@ static int init_card(struct snd_usb_caiaqdev *cdev)
memset(id, 0, sizeof(id));
for (c = card->shortname, len = 0;
- ... |
310e2096b082ae0010e7afef666073b966ac2fa7 | Analyze and fix the following issue in the Linux kernel code: RISC-V: KVM: Fix double-free of sdata in kvm_pmu_clear_snapshot_area() | Problem Details:
In kvm_riscv_vcpu_pmu_snapshot_set_shmem(), when kvm_vcpu_write_guest()
fails, kvpmu->sdata is freed but not set to NULL. This leaves a dangling
pointer that will be freed again when kvm_pmu_clear_snapshot_area() is
called during vcpu teardown, triggering a KASAN double-free report.
First free occurs ... | ```diff
diff --git a/arch/riscv/kvm/vcpu_pmu.c b/arch/riscv/kvm/vcpu_pmu.c
index 9e9f3302cef8..bb6380ec7fc4 100644
--- a/arch/riscv/kvm/vcpu_pmu.c
+++ b/arch/riscv/kvm/vcpu_pmu.c
@@ -456,6 +456,7 @@ int kvm_riscv_vcpu_pmu_snapshot_set_shmem(struct kvm_vcpu *vcpu, unsigned long s
/* No need to check writable slot expl... |
9b33ab1e8c189bd0aced0d07545b0f31a459d40e | Analyze and fix the following issue in the Linux kernel code: riscv: kvm: add null pointer check for vector datap | Problem Details:
Add WARN_ON check before accessing cntx->vector.datap in
kvm_riscv_vcpu_vreg_addr() to detect potential null pointer
dereferences early, consistent with the pattern used in
kvm_riscv_vcpu_vector_reset().
This helps catch initialization issues where vector context
allocation may have failed.
Signed-of... | ```diff
diff --git a/arch/riscv/kvm/vcpu_vector.c b/arch/riscv/kvm/vcpu_vector.c
index 5b6ad82d47be..f3f5fb665cf6 100644
--- a/arch/riscv/kvm/vcpu_vector.c
+++ b/arch/riscv/kvm/vcpu_vector.c
@@ -130,6 +130,7 @@ static int kvm_riscv_vcpu_vreg_addr(struct kvm_vcpu *vcpu,
} else if (reg_num <= KVM_REG_RISCV_VECTOR_REG(3... |
4dfce79e098915d8e5fc2b9e1d980bc3251dd32c | Analyze and fix the following issue in the Linux kernel code: drm/i915/dsi: Don't do DSC horizontal timing adjustments in command mode | Problem Details:
Stop adjusting the horizontal timing values based on the
compression ratio in command mode. Bspec seems to be telling
us to do this only in video mode, and this is also how the
Windows driver does things.
This should also fix a div-by-zero on some machines because
the adjusted htotal ends up being so ... | ```diff
diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c
index fc265f71d72b..298b3a48197c 100644
--- a/drivers/gpu/drm/i915/display/icl_dsi.c
+++ b/drivers/gpu/drm/i915/display/icl_dsi.c
@@ -889,7 +889,7 @@ gen11_dsi_set_transcoder_timings(struct intel_encoder *encoder,
* ... |
7081d46d32312f1a31f0e0e99c6835a394037599 | Analyze and fix the following issue in the Linux kernel code: xfrm: account XFRMA_IF_ID in aevent size calculation | Problem Details:
xfrm_get_ae() allocates the reply skb with xfrm_aevent_msgsize(), then
build_aevent() appends attributes including XFRMA_IF_ID when x->if_id is
set.
xfrm_aevent_msgsize() does not include space for XFRMA_IF_ID. For states
with if_id, build_aevent() can fail with -EMSGSIZE and hit BUG_ON(err < 0)
in xf... | ```diff
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 5d59c11fc01e..a779590c985a 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -2677,7 +2677,8 @@ static inline unsigned int xfrm_aevent_msgsize(struct xfrm_state *x)
+ nla_total_size(4) /* XFRM_AE_RTHR */
+ nla_total_s... |
71a98248c63c535eaa4d4c22f099b68d902006d0 | Analyze and fix the following issue in the Linux kernel code: xfrm: clear trailing padding in build_polexpire() | Problem Details:
build_expire() clears the trailing padding bytes of struct
xfrm_user_expire after setting the hard field via memset_after(),
but the analogous function build_polexpire() does not do this for
struct xfrm_user_polexpire.
The padding bytes after the __u8 hard field are left
uninitialized from the heap al... | ```diff
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 1656b487f833..5d59c11fc01e 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -3960,6 +3960,8 @@ static int build_polexpire(struct sk_buff *skb, struct xfrm_policy *xp,
return err;
}
upe->hard = !!hard;
+ /* clear the padding byt... |
deb4605671cfae3b2803cfbbf4739e7245248398 | Analyze and fix the following issue in the Linux kernel code: modpost: Declare extra_warn with unused attribute | Problem Details:
A recent strengthening of -Wunused-but-set-variable (enabled with -Wall)
in clang under a new subwarning, -Wunused-but-set-global, points out an
unused static global variable in scripts/mod/modpost.c:
scripts/mod/modpost.c:59:13: error: variable 'extra_warn' set but not used [-Werror,-Wunused-but-se... | ```diff
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 0c25b5ad497b..c3bc801d8b2d 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -56,7 +56,7 @@ static bool allow_missing_ns_imports;
static bool error_occurred;
-static bool extra_warn;
+static bool extra_warn __attribute__((unus... |
742de64b62b690a368dbeb846499eb8ac8ceedb9 | Analyze and fix the following issue in the Linux kernel code: kbuild: modules-cpio-pkg: Respect INSTALL_MOD_PATH | Problem Details:
The modules-cpio-pkg target added in commit 2a9c8c0b59d3 ("kbuild: add
target to build a cpio containing modules") is incompatible with
initramfs with merged /lib and /usr/lib directories [1]. "/lib" cannot
be a link and directory at the same time.
Respect a non-empty INSTALL_MOD_PATH in the modules-cp... | ```diff
diff --git a/scripts/Makefile.package b/scripts/Makefile.package
index 0ec946f9b905..6d36786ba31c 100644
--- a/scripts/Makefile.package
+++ b/scripts/Makefile.package
@@ -195,7 +195,7 @@ tar%-pkg: linux-$(KERNELRELEASE)-$(ARCH).tar.% FORCE
.tmp_modules_cpio: FORCE
$(Q)$(MAKE) -f $(srctree)/Makefile
$(Q)rm ... |
bfeaa6814bd3f9a1f6d525b3b35a03b9a0368961 | Analyze and fix the following issue in the Linux kernel code: PCMCIA: Fix garbled log messages for KERN_CONT | Problem Details:
For years the PCMCIA info messages are messed up by superfluous
newlines. While f2e6cf76751d ("pcmcia: Convert dev_printk to
dev_<level>") converted the code to pr_cont(), dev_info enforces a \n
via vprintk_store setting LOG_NEWLINE, breaking subsequent pr_cont.
Fix by logging the device name manually... | ```diff
diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c
index 0679dd434719..b28d754ba414 100644
--- a/drivers/pcmcia/rsrc_nonstatic.c
+++ b/drivers/pcmcia/rsrc_nonstatic.c
@@ -187,7 +187,7 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned int base,
int any;
u_char *b, hole,... |
7c50d748b4a635bc39802ea3f6b120e66b1b9067 | Analyze and fix the following issue in the Linux kernel code: gpu: nova-core: firmware: factor out an elf_str() function | Problem Details:
Factor out a chunk of complexity into a new subroutine. This is an
incremental step in adding ELF32 support to the existing ELF64 section
support, for handling GPU firmware.
Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20... | ```diff
diff --git a/drivers/gpu/nova-core/firmware.rs b/drivers/gpu/nova-core/firmware.rs
index 177b8ede151c..6c2ab69cb605 100644
--- a/drivers/gpu/nova-core/firmware.rs
+++ b/drivers/gpu/nova-core/firmware.rs
@@ -484,6 +484,13 @@ mod elf {
// SAFETY: all bit patterns are valid for this type, and it doesn't use i... |
b3d24269b3c7e764b694689b5fd7517546625150 | Analyze and fix the following issue in the Linux kernel code: gpu: nova-core: firmware: move firmware image parsing code to firmware.rs | Problem Details:
Up until now, only the GSP required parsing of its firmware headers.
However, upcoming support for Hopper/Blackwell+ adds another firmware
image (FMC), along with another format (ELF32).
Therefore, the current ELF64 section parsing support needs to be moved
up a level, so that both of the above can us... | ```diff
diff --git a/drivers/gpu/nova-core/firmware.rs b/drivers/gpu/nova-core/firmware.rs
index 2bb20081befd..177b8ede151c 100644
--- a/drivers/gpu/nova-core/firmware.rs
+++ b/drivers/gpu/nova-core/firmware.rs
@@ -457,3 +457,91 @@ impl<const N: usize> ModInfoBuilder<N> {
this.0
}
}
+
+/// Ad-hoc and tem... |
fda9522ed6afaec45cabc198d8492270c394c7bc | Analyze and fix the following issue in the Linux kernel code: ksmbd: fix OOB write in QUERY_INFO for compound requests | Problem Details:
When a compound request such as READ + QUERY_INFO(Security) is received,
and the first command (READ) consumes most of the response buffer,
ksmbd could write beyond the allocated buffer while building a security
descriptor.
The root cause was that smb2_get_info_sec() checked buffer space using
ppntsd_... | ```diff
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index 6fb7a795ff5d..8e4cfdc0ba02 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -3402,20 +3402,24 @@ int smb2_open(struct ksmbd_work *work)
KSMBD_SHARE_FLAG_ACL_XATTR)) {
struct smb_fattr fattr;
struct s... |
a9d2fbd3ad0e6ac588386e699beeccfe7516755f | Analyze and fix the following issue in the Linux kernel code: hwmon: (ltc4286) Add missing MODULE_IMPORT_NS("PMBUS") | Problem Details:
ltc4286.c uses PMBus core symbols exported in the PMBUS namespace,
such as pmbus_do_probe(), but does not declare MODULE_IMPORT_NS("PMBUS").
Add the missing namespace import to avoid modpost warnings.
Fixes: 0c459759ca97 ("hwmon: (pmbus) Add ltc4286 driver")
Signed-off-by: Sanman Pradhan <psanman@jun... | ```diff
diff --git a/drivers/hwmon/pmbus/ltc4286.c b/drivers/hwmon/pmbus/ltc4286.c
index aabd0bcdfeee..8715d380784a 100644
--- a/drivers/hwmon/pmbus/ltc4286.c
+++ b/drivers/hwmon/pmbus/ltc4286.c
@@ -173,3 +173,4 @@ module_i2c_driver(ltc4286_driver);
MODULE_AUTHOR("Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>");
MOD... |
ccf70c41e562b29d1c05d1bbf53391785e09c6fb | Analyze and fix the following issue in the Linux kernel code: hwmon: (pxe1610) Check return value of page-select write in probe | Problem Details:
pxe1610_probe() writes PMBUS_PAGE to select page 0 but does not check
the return value. If the write fails, subsequent register reads operate
on an indeterminate page, leading to silent misconfiguration.
Check the return value and propagate the error using dev_err_probe(),
which also handles -EPROBE_D... | ```diff
diff --git a/drivers/hwmon/pmbus/pxe1610.c b/drivers/hwmon/pmbus/pxe1610.c
index 6a4a978eca7e..24c1f961c766 100644
--- a/drivers/hwmon/pmbus/pxe1610.c
+++ b/drivers/hwmon/pmbus/pxe1610.c
@@ -104,7 +104,10 @@ static int pxe1610_probe(struct i2c_client *client)
* By default this device doesn't boot to page 0, ... |
0e211f6aaa6a00fd0ee0c1eea5498f168c6725e6 | Analyze and fix the following issue in the Linux kernel code: hwmon: (tps53679) Fix array access with zero-length block read | Problem Details:
i2c_smbus_read_block_data() can return 0, indicating a zero-length
read. When this happens, tps53679_identify_chip() accesses buf[ret - 1]
which is buf[-1], reading one byte before the buffer on the stack.
Fix by changing the check from "ret < 0" to "ret <= 0", treating a
zero-length read as an error ... | ```diff
diff --git a/drivers/hwmon/pmbus/tps53679.c b/drivers/hwmon/pmbus/tps53679.c
index ca2bfa25eb04..3bca543817a6 100644
--- a/drivers/hwmon/pmbus/tps53679.c
+++ b/drivers/hwmon/pmbus/tps53679.c
@@ -103,10 +103,10 @@ static int tps53679_identify_chip(struct i2c_client *client,
}
ret = i2c_smbus_read_block_dat... |
047cddf88c611e616d49a00311d4722e46286234 | Analyze and fix the following issue in the Linux kernel code: wifi: rtw89: phy: fix uninitialized variable access in rtw89_phy_cfo_set_crystal_cap() | Problem Details:
In the rtw89_phy_cfo_set_crystal_cap() function, for chips other than
RTL8852A/RTL8851B, the values read by rtw89_mac_read_xtal_si() are
stored into the local variables sc_xi_val and sc_xo_val. If either
read fails, these variables remain uninitialized, they are later
used to update cfo->crystal_cap an... | ```diff
diff --git a/drivers/net/wireless/realtek/rtw89/phy.c b/drivers/net/wireless/realtek/rtw89/phy.c
index 3a241738ac06..d205561f1f5c 100644
--- a/drivers/net/wireless/realtek/rtw89/phy.c
+++ b/drivers/net/wireless/realtek/rtw89/phy.c
@@ -4898,7 +4898,7 @@ static void rtw89_phy_cfo_set_crystal_cap(struct rtw89_dev ... |
3603bf99062c6d563df4fba3848f829d5401d959 | Analyze and fix the following issue in the Linux kernel code: SUNRPC: xdr.h: fix all kernel-doc warnings | Problem Details:
Correct a function parameter name (s/page/folio/) and add function
return value sections for multiple functions to eliminate
kernel-doc warnings:
Warning: include/linux/sunrpc/xdr.h:298 function parameter 'folio' not
described in 'xdr_set_scratch_folio'
Warning: include/linux/sunrpc/xdr.h:337 No desc... | ```diff
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 152597750f55..b639a6fafcbc 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -290,7 +290,7 @@ xdr_set_scratch_buffer(struct xdr_stream *xdr, void *buf, size_t buflen)
/**
* xdr_set_scratch_folio - Attach a sc... |
2239535fb062b404871556b3bbbe4e27579f5edb | Analyze and fix the following issue in the Linux kernel code: svcrdma: Factor out WR chain linking into helper | Problem Details:
svc_rdma_prepare_write_chunk() and svc_rdma_prepare_reply_chunk()
contain identical code for linking RDMA R/W work requests onto a
Send context's WR chain. This duplication increases maintenance
burden and risks divergent bug fixes.
Introduce svc_rdma_cc_link_wrs() to consolidate the WR chain
linking ... | ```diff
diff --git a/net/sunrpc/xprtrdma/svc_rdma_rw.c b/net/sunrpc/xprtrdma/svc_rdma_rw.c
index ebc90c12c835..9e17700fae2a 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_rw.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_rw.c
@@ -619,15 +619,32 @@ static int svc_rdma_xb_write(const struct xdr_buf *xdr, void *data)
return xdr->len;
... |
116b6b7acdd82605ed530232cd7509d1b5282f5c | Analyze and fix the following issue in the Linux kernel code: nfsd: use dynamic allocation for oversized NFSv4.0 replay cache | Problem Details:
Commit 1e8e9913672a ("nfsd: fix heap overflow in NFSv4.0 LOCK
replay cache") capped the replay cache copy at NFSD4_REPLAY_ISIZE
to prevent a heap overflow, but set rp_buflen to zero when the
encoded response exceeded the inline buffer. A retransmitted LOCK
reaching the replay path then produced only a ... | ```diff
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index ba49f49bb93b..b4d0e82b2690 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1496,8 +1496,24 @@ release_all_access(struct nfs4_ol_stateid *stp)
}
}
+/**
+ * nfs4_replay_free_cache - release dynamically allocated replay buffer
+ * @rp... |
b131a424b0860d14b2778a5d3a8295f19e816291 | Analyze and fix the following issue in the Linux kernel code: lockd: Remove C macros that are no longer used | Problem Details:
The conversion of all NLMv4 procedures to xdrgen-generated
XDR functions is complete. The hand-rolled XDR size
calculation macros (Ck, No, St, Rg) and the nlm_void
structure definition served only the older implementations
and are now unused.
Also removes NLMDBG_FACILITY, which was set to the client
d... | ```diff
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index ce340ea0d304..4044459b7c49 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -26,8 +26,6 @@
#include "nlm4xdr_gen.h"
#include "xdr4.h"
-#define NLMDBG_FACILITY NLMDBG_CLIENT
-
/*
* Wrapper structures combine xdrgen types with legac... |
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