id stringlengths 40 40 | instruction stringlengths 68 308 | input stringlengths 17 33.4k | output stringlengths 100 30k |
|---|---|---|---|
768461517a28d80fe81ea4d5d03a90cd184ea6ad | Analyze and fix the following issue in the Linux kernel code: iio: adc: ti-adc161s626: use DMA-safe memory for spi_read() | Problem Details:
Add a DMA-safe buffer and use it for spi_read() instead of a stack
memory. All SPI buffers must be DMA-safe.
Since we only need up to 3 bytes, we just use a u8[] instead of __be16
and __be32 and change the conversion functions appropriately.
Fixes: 4d671b71beef ("iio: adc: ti-adc161s626: add support ... | ```diff
diff --git a/drivers/iio/adc/ti-adc161s626.c b/drivers/iio/adc/ti-adc161s626.c
index 42968d96572b..be1cc2e77862 100644
--- a/drivers/iio/adc/ti-adc161s626.c
+++ b/drivers/iio/adc/ti-adc161s626.c
@@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/err.h>
#include <linux/spi/spi.h>
+#include <linux/unali... |
07183aac4a6828e474f00b37c9d795d0d99e18a7 | Analyze and fix the following issue in the Linux kernel code: tracing: Fix trace_marker copy link list updates | Problem Details:
When the "copy_trace_marker" option is enabled for an instance, anything
written into /sys/kernel/tracing/trace_marker is also copied into that
instances buffer. When the option is set, that instance's trace_array
descriptor is added to the marker_copies link list. This list is protected
by RCU, as all... | ```diff
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index bb4a62f4b953..a626211ceb9a 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -555,7 +555,7 @@ static bool update_marker_trace(struct trace_array *tr, int enabled)
lockdep_assert_held(&event_mutex);
if (enabled) {
- if (!list_emp... |
edca33a56297d5741ccf867669debec116681987 | Analyze and fix the following issue in the Linux kernel code: tracing: Fix failure to read user space from system call trace events | Problem Details:
The system call trace events call trace_user_fault_read() to read the user
space part of some system calls. This is done by grabbing a per-cpu
buffer, disabling migration, enabling preemption, calling
copy_from_user(), disabling preemption, enabling migration and checking if
the task was preempted whil... | ```diff
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index ebd996f8710e..bb4a62f4b953 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6783,6 +6783,23 @@ char *trace_user_fault_read(struct trace_user_buf_info *tinfo,
*/
do {
+ /*
+ * It is possible that something is trying to migra... |
24869650dff34a6fc8fd1cc91b2058a72f9abc95 | Analyze and fix the following issue in the Linux kernel code: iio: adc: ti-adc161s626: fix buffer read on big-endian | Problem Details:
Rework ti_adc_trigger_handler() to properly handle data on big-endian
architectures. The scan data format is 16-bit CPU-endian, so we can't
cast it to a int * on big-endian and expect it to work. Instead, we
introduce a local int variable to read the data into, and then copy it
to the buffer.
Since th... | ```diff
diff --git a/drivers/iio/adc/ti-adc161s626.c b/drivers/iio/adc/ti-adc161s626.c
index 28aa6b80160c..42968d96572b 100644
--- a/drivers/iio/adc/ti-adc161s626.c
+++ b/drivers/iio/adc/ti-adc161s626.c
@@ -70,8 +70,6 @@ struct ti_adc_data {
u8 read_size;
u8 shift;
-
- u8 buffer[16] __aligned(IIO_DMA_MINALIGN);
... |
a6f22e50c7d51aa225c392c62c33f0fae11f734d | Analyze and fix the following issue in the Linux kernel code: tracing: Revert "tracing: Remove pid in task_rename tracing output" | Problem Details:
This reverts commit e3f6a42272e028c46695acc83fc7d7c42f2750ad.
The commit says that the tracepoint only deals with the current task,
however the following case is not current task:
comm_write() {
p = get_proc_task(inode);
if (!p)
return -ESRCH;
if (same_thread_group(current, p))
... | ```diff
diff --git a/include/trace/events/task.h b/include/trace/events/task.h
index 4f0759634306..b9a129eb54d9 100644
--- a/include/trace/events/task.h
+++ b/include/trace/events/task.h
@@ -38,19 +38,22 @@ TRACE_EVENT(task_rename,
TP_ARGS(task, comm),
TP_STRUCT__entry(
+ __field( pid_t, pid)
__array( char, o... |
4a04d13576fd69149b91672b5f1dc62eca272fa5 | Analyze and fix the following issue in the Linux kernel code: selftests/bpf: Add a test cases for sync_linked_regs regarding zext propagation | Problem Details:
Add multiple test cases for linked register tracking with alu32 ops:
- Add a test that checks sync_linked_regs() regarding reg->id (the linked
target register) for BPF_ADD_CONST32 rather than known_reg->id (the
branch register).
- Add a test case for linked register tracking that exposes ... | ```diff
diff --git a/tools/testing/selftests/bpf/progs/verifier_linked_scalars.c b/tools/testing/selftests/bpf/progs/verifier_linked_scalars.c
index 7bf7dbfd237d..f4f8a055af8a 100644
--- a/tools/testing/selftests/bpf/progs/verifier_linked_scalars.c
+++ b/tools/testing/selftests/bpf/progs/verifier_linked_scalars.c
@@ -3... |
bc308be380c136800e1e94c6ce49cb53141d6506 | Analyze and fix the following issue in the Linux kernel code: bpf: Fix sync_linked_regs regarding BPF_ADD_CONST32 zext propagation | Problem Details:
Jenny reported that in sync_linked_regs() the BPF_ADD_CONST32 flag is
checked on known_reg (the register narrowed by a conditional branch)
instead of reg (the linked target register created by an alu32 operation).
Example case with reg:
1. r6 = bpf_get_prandom_u32()
2. r7 = r6 (linked, same id)
... | ```diff
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 62377bcb66fd..f108c01ff6d0 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -17415,6 +17415,12 @@ static void sync_linked_regs(struct bpf_verifier_env *env, struct bpf_verifier_s
continue;
if ((reg->id & ~BPF_ADD_CONST) != ... |
0ad1734cc5598d3ddb6126a8960efe85f0f807d7 | Analyze and fix the following issue in the Linux kernel code: selftests/bpf: Add tests for maybe_fork_scalars() OR vs AND handling | Problem Details:
Add three test cases to verifier_bounds.c to verify that
maybe_fork_scalars() correctly tracks register values for BPF_OR
operations with constant source operands:
1. or_scalar_fork_rejects_oob: After ARSH 63 + OR 8, the pushed
path should have dst = 8. With value_size = 8, accessing
map_value +... | ```diff
diff --git a/tools/testing/selftests/bpf/progs/verifier_bounds.c b/tools/testing/selftests/bpf/progs/verifier_bounds.c
index e526315c718a..79a328276805 100644
--- a/tools/testing/selftests/bpf/progs/verifier_bounds.c
+++ b/tools/testing/selftests/bpf/progs/verifier_bounds.c
@@ -2037,4 +2037,98 @@ __naked void s... |
c845894ebd6fb43226b3118d6b017942550910c5 | Analyze and fix the following issue in the Linux kernel code: bpf: Fix unsound scalar forking in maybe_fork_scalars() for BPF_OR | Problem Details:
maybe_fork_scalars() is called for both BPF_AND and BPF_OR when the
source operand is a constant. When dst has signed range [-1, 0], it
forks the verifier state: the pushed path gets dst = 0, the current
path gets dst = -1.
For BPF_AND this is correct: 0 & K == 0.
For BPF_OR this is wrong: 0 | K =... | ```diff
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 5c0e6809024f..62377bcb66fd 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -15999,7 +15999,7 @@ static int maybe_fork_scalars(struct bpf_verifier_env *env, struct bpf_insn *ins
else
return 0;
- branch = push_stack(env, env... |
4ac95c65efeaf0c010199b2b2f5f78b06f28dab6 | Analyze and fix the following issue in the Linux kernel code: selftests/bpf: Add tests for sdiv32/smod32 with INT_MIN dividend | Problem Details:
Add tests to verify that signed 32-bit division and modulo operations
produce correct results when the dividend is INT_MIN (0x80000000).
The bug fixed in the previous commit only affects the BPF interpreter
path. When JIT is enabled (the default on most architectures), the
native CPU division instruct... | ```diff
diff --git a/tools/testing/selftests/bpf/progs/verifier_sdiv.c b/tools/testing/selftests/bpf/progs/verifier_sdiv.c
index 148d2299e5b4..fd59d57e8e37 100644
--- a/tools/testing/selftests/bpf/progs/verifier_sdiv.c
+++ b/tools/testing/selftests/bpf/progs/verifier_sdiv.c
@@ -1209,6 +1209,64 @@ __naked void smod32_ri... |
c77b30bd1dcb61f66c640ff7d2757816210c7cb0 | Analyze and fix the following issue in the Linux kernel code: bpf: Fix undefined behavior in interpreter sdiv/smod for INT_MIN | Problem Details:
The BPF interpreter's signed 32-bit division and modulo handlers use
the kernel abs() macro on s32 operands. The abs() macro documentation
(include/linux/math.h) explicitly states the result is undefined when
the input is the type minimum. When DST contains S32_MIN (0x80000000),
abs((s32)DST) triggers ... | ```diff
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 9e126be33755..7b675a451ec8 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -1757,6 +1757,12 @@ bool bpf_opcode_in_insntable(u8 code)
}
#ifndef CONFIG_BPF_JIT_ALWAYS_ON
+/* Absolute value of s32 without undefined behavior for S32_MIN */
+stat... |
6c2128505f61b504c79a20b89596feba61388112 | Analyze and fix the following issue in the Linux kernel code: bpf: Fix exception exit lock checking for subprogs | Problem Details:
process_bpf_exit_full() passes check_lock = !curframe to
check_resource_leak(), which is false in cases when bpf_throw() is
called from a static subprog. This makes check_resource_leak() to skip
validation of active_rcu_locks, active_preempt_locks, and
active_irq_id on exception exits from subprogs.
A... | ```diff
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index df22bfc572e2..5c0e6809024f 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -20911,7 +20911,8 @@ static int process_bpf_exit_full(struct bpf_verifier_env *env,
* state when it exits.
*/
int err = check_resource_leak(env, e... |
88d699da8ab6ead396809006c65d07b13b19907c | Analyze and fix the following issue in the Linux kernel code: iio: amplifiers: fix typo from Curren to Current | Problem Details:
Fix incorrect spelling from Curren to Current.
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> | ```diff
diff --git a/drivers/iio/amplifiers/ada4250.c b/drivers/iio/amplifiers/ada4250.c
index 40f396ea9069..71e361af2074 100644
--- a/drivers/iio/amplifiers/ada4250.c
+++ b/drivers/iio/amplifiers/ada4250.c
@@ -109,7 +109,7 @@ static int ada4250_set_offset_uv(struct iio_dev *indio_dev,
/*
* Compute Range and Vol... |
1011a6bd86bc79dcadab04f3326868e62613484a | Analyze and fix the following issue in the Linux kernel code: iio: cdc: fix spelling mistakes in comments | Problem Details:
Fix spelling mistakes in comments.
- becaue -> because
- reenable -> re-enable
- irq's -> IRQs
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> | ```diff
diff --git a/drivers/iio/cdc/ad7150.c b/drivers/iio/cdc/ad7150.c
index 427d32e398b3..8106a6a83561 100644
--- a/drivers/iio/cdc/ad7150.c
+++ b/drivers/iio/cdc/ad7150.c
@@ -306,7 +306,7 @@ static int ad7150_write_event_config(struct iio_dev *indio_dev,
dir);
if (ret)
goto error_ret;
- /* reenable a... |
1a18c847c89ce4b301a5870b0feafd931b076005 | Analyze and fix the following issue in the Linux kernel code: iio: chemical: rephrase comment and fix a typo | Problem Details:
Rephrase the comment and fix a spelling mistake.
- insuffient -> insufficient
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> | ```diff
diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme680_core.c
index 70f81c4a96ba..b5b2c8587749 100644
--- a/drivers/iio/chemical/bme680_core.c
+++ b/drivers/iio/chemical/bme680_core.c
@@ -807,7 +807,7 @@ static int bme680_read_gas(struct bme680_data *data, int *comp_gas_res)
adc_gas_res... |
96f46405219d9bf62d9fab76e055e3b6059b0bd5 | Analyze and fix the following issue in the Linux kernel code: iio: common: fix spelling mistakes in comments | Problem Details:
Fix spelling mistakes in comments.
- exepects -> expects
- fuction -> function
- theoritical -> theoretical
- appopriate -> appropriate
- iio -> IIO
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> | ```diff
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
index 82cef4a12442..f34e2bbba2d1 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
@@ -106,7 +106,7 @@ static int cr... |
5088fc744837eaba3f7a1c374cf9457a4ddbd87e | Analyze and fix the following issue in the Linux kernel code: iio: test: fix typo from neeeds to needs in comment | Problem Details:
Fix incorrect spelling from neeeds to needs.
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> | ```diff
diff --git a/drivers/iio/test/iio-test-gts.c b/drivers/iio/test/iio-test-gts.c
index 11250bc905c9..6ffff85ba853 100644
--- a/drivers/iio/test/iio-test-gts.c
+++ b/drivers/iio/test/iio-test-gts.c
@@ -20,7 +20,7 @@
*
* If yes, then adding a test is probably a good idea but please stop for a
* moment and con... |
abf88d037b1bbdc76dec4248e09f7a3f71aae832 | Analyze and fix the following issue in the Linux kernel code: iio: temp: fix spelling mistakes in comments | Problem Details:
Fix spelling mistakes in comments.
- catched -> caught
- chanel -> channel
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> | ```diff
diff --git a/drivers/iio/temperature/ltc2983.c b/drivers/iio/temperature/ltc2983.c
index 7dd40d69cce6..38e6f8dfd3b8 100644
--- a/drivers/iio/temperature/ltc2983.c
+++ b/drivers/iio/temperature/ltc2983.c
@@ -709,7 +709,7 @@ ltc2983_thermocouple_new(const struct fwnode_handle *child, struct ltc2983_data
ret = ... |
761451473febd7777034720b85ba2bbb2c73ec89 | Analyze and fix the following issue in the Linux kernel code: iio: resolver: fix typo from degredation to degradation | Problem Details:
Fix incorrect spelling from degredation to degradation and fixed
up some missing spaces prior to */
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> | ```diff
diff --git a/drivers/iio/resolver/ad2s1210.c b/drivers/iio/resolver/ad2s1210.c
index 06d9c784f93e..774728c804c0 100644
--- a/drivers/iio/resolver/ad2s1210.c
+++ b/drivers/iio/resolver/ad2s1210.c
@@ -896,14 +896,14 @@ static const struct iio_event_spec ad2s1210_monitor_signal_event_spec[] = {
.mask_separate =... |
22dd6499c1a67fd3fdb73a7b2e57bc90a464987c | Analyze and fix the following issue in the Linux kernel code: iio: proximity: fix typo from currenly to currently | Problem Details:
Fix incorrect spelling from currenly to currently.
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> | ```diff
diff --git a/drivers/iio/proximity/sx9324.c b/drivers/iio/proximity/sx9324.c
index c7b2d03c23bc..f61eff39751d 100644
--- a/drivers/iio/proximity/sx9324.c
+++ b/drivers/iio/proximity/sx9324.c
@@ -821,7 +821,7 @@ static const struct sx_common_reg_default sx9324_default_regs[] = {
{ SX9324_REG_ADV_CTRL10, 0x00, ... |
896b6508acdfa052dfdf91460ee1b2d565d23010 | Analyze and fix the following issue in the Linux kernel code: iio: pressure: fix spelling mistakes in comments | Problem Details:
Fix several spelling mistakes in comments.
- opertion -> operations
- transfered -> transferred
- usng -> using
- externaly -> externally
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.co... | ```diff
diff --git a/drivers/iio/pressure/bmp280-spi.c b/drivers/iio/pressure/bmp280-spi.c
index 3b90384f17d7..04bf2f5be5b1 100644
--- a/drivers/iio/pressure/bmp280-spi.c
+++ b/drivers/iio/pressure/bmp280-spi.c
@@ -47,7 +47,7 @@ static int bmp380_regmap_spi_read(void *context, const void *reg,
return -EINVAL;
/*... |
2354338cc8136fd4e77b92807cf5e0ad89c82e3d | Analyze and fix the following issue in the Linux kernel code: iio: magnetometer: fix various spelling mistakes | Problem Details:
Fix spelling mistakes in comments.
- follwing -> following
- atleast -> at least
- occured -> occurred
- measurment -> measurement
- rougly -> roughly
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> | ```diff
diff --git a/drivers/iio/magnetometer/ak8974.c b/drivers/iio/magnetometer/ak8974.c
index 68ece700c7ce..817b18257608 100644
--- a/drivers/iio/magnetometer/ak8974.c
+++ b/drivers/iio/magnetometer/ak8974.c
@@ -577,7 +577,7 @@ static int ak8974_measure_channel(struct ak8974 *ak8974, unsigned long address,
/*
*... |
d5036cd38aef10a59a08c10baf71a92efdd2d485 | Analyze and fix the following issue in the Linux kernel code: iio: imu: fix typo from adjustement to adjustment | Problem Details:
Fix incorrect spelling in a comment.
- adjustement -> adjustment
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> | ```diff
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_magn.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_magn.c
index 6aee6c989485..47394594d17a 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_magn.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_magn.c
@@ -125,7 +125,7 @@ static int inv_magn_init(struct inv_mpu6050_state *st... |
0dcaf3db244802283a268bb93b38a7683e476b2a | Analyze and fix the following issue in the Linux kernel code: iio: light: fix several incorrect spellings | Problem Details:
Fix spelling mistakes reported by codespell.
- sesnor -> sensor
- substraction -> subtraction
- simulataneous -> simultaneous
- proccessed -> processed
- coefficents -> coefficients
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> | ```diff
diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index ac1408d374c9..eff33e456c70 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -359,7 +359,7 @@ config ROHM_BU27034
select IIO_KFIFO_BUF
help
Enable support for the ROHM BU27034 ambient light sensor. ROHM BU27... |
db0da4b7f688a76951acc38870f71e673f8fcad0 | Analyze and fix the following issue in the Linux kernel code: iio: accel: fix typo celcius to Celsius | Problem Details:
Fix incorrect spelling in comments
- celcius -> Celsius
Signed-off-by: Shi Hao <i.shihao.999@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> | ```diff
diff --git a/drivers/iio/accel/adis16201.c b/drivers/iio/accel/adis16201.c
index 5127e58eebc7..ba0f97944c6d 100644
--- a/drivers/iio/accel/adis16201.c
+++ b/drivers/iio/accel/adis16201.c
@@ -147,7 +147,7 @@ static int adis16201_read_raw(struct iio_dev *indio_dev,
/*
* The raw ADC value is 1278 when the t... |
7e226f036a71c032cd1eb985dd02bc8314e69adf | Analyze and fix the following issue in the Linux kernel code: sched_ext: Documentation: Document events sysfs file and module parameters | Problem Details:
Two categories of sched_ext diagnostics are currently undocumented:
1. Per-scheduler events sysfs file
Each active BPF scheduler exposes a set of diagnostic counters at
/sys/kernel/sched_ext/<name>/events. These counters are defined
(with detailed comments) in kernel/sched/ext_internal.h but... | ```diff
diff --git a/Documentation/scheduler/sched-ext.rst b/Documentation/scheduler/sched-ext.rst
index f4f7d8f4f9e4..9e4dbabc03c0 100644
--- a/Documentation/scheduler/sched-ext.rst
+++ b/Documentation/scheduler/sched-ext.rst
@@ -93,6 +93,55 @@ scheduler has been loaded):
# cat /sys/kernel/sched_ext/enable_seq
... |
66ab53c286989634acaa2c4a5703c0f647cb9aa3 | Analyze and fix the following issue in the Linux kernel code: iio: adc: aspeed: Replace mdelay() with fsleep() for ADC stabilization delay | Problem Details:
The ADC stabilization delays in compensation mode and battery sensing
mode do not require atomic context. Using mdelay() here results in
unnecessary busy waiting.
Replace mdelay(1) with fsleep(1000) to allow the scheduler to run other
tasks while waiting for the ADC to stabilize.
Also fix a minor typ... | ```diff
diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c
index 3ff24474f394..a1a6296d3003 100644
--- a/drivers/iio/adc/aspeed_adc.c
+++ b/drivers/iio/adc/aspeed_adc.c
@@ -259,7 +259,7 @@ static int aspeed_adc_compensation(struct iio_dev *indio_dev)
* After enable compensating sensing mode nee... |
cbf8db23fc58db8d516ebc7aa57c4563f36532b9 | Analyze and fix the following issue in the Linux kernel code: counter: sysfs: remove double return in counter_sysfs_attr_add() | Problem Details:
sysfs attribute creation for counter extensions has been consolidated
into a single function, counter_sysfs_exts_add().
Inside counter_sysfs_attr_add(), although the code was changed to return
the result of counter_sysfs_exts_add(), an unreachable return 0;
statement was left at the end of the functio... | ```diff
diff --git a/drivers/counter/counter-sysfs.c b/drivers/counter/counter-sysfs.c
index 42c523343d32..ed85da907982 100644
--- a/drivers/counter/counter-sysfs.c
+++ b/drivers/counter/counter-sysfs.c
@@ -1101,8 +1101,6 @@ static int counter_sysfs_attr_add(struct counter_device *const counter,
/* Add device extensi... |
ab4a4043db1fcc4fd4c5745c5be8caf053502e29 | Analyze and fix the following issue in the Linux kernel code: PCI: mediatek: Fix possible truncation in mtk_pcie_parse_port() | Problem Details:
As reported by the W=1 warning below, content of the 'name' variable might
get truncated with the existing size of 10 bytes. Though it is not
practically possible to exceed the 10 bytes size, increase it to 20 to
silence the warning for a clean W=1 build:
$ make W=1 drivers/pci/controller/pcie-media... | ```diff
diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index 5defa5cc4c2b..75722524fe74 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -953,7 +953,7 @@ static int mtk_pcie_parse_port(struct mtk_pcie *pcie,
struct mtk_pc... |
d1895c15fc7d90a615bc8c455feb02acaf08ef1e | Analyze and fix the following issue in the Linux kernel code: x86/um: fix vDSO installation | Problem Details:
The generic vDSO installation logic used by 'make vdso_install' requires
that $(vdso-install-y) is defined by the top-level architecture Makefile
and that it contains a path relative to the root of the tree.
For UML neither of these is satisfied.
Move the definition of $(vdso-install-y) to a place whi... | ```diff
diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um
index c86cbd9cbba3..19c13afa474e 100644
--- a/arch/x86/Makefile.um
+++ b/arch/x86/Makefile.um
@@ -60,4 +60,6 @@ ELF_FORMAT := elf64-x86-64
LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpath,/lib64
LINK-y += -m64
+vdso-install-y += arch/x86/um/vdso/vdso.... |
92d5c5c04eaa61f01c5b99bea9d639f0bd008036 | Analyze and fix the following issue in the Linux kernel code: um: Remove CONFIG_FRAME_WARN from x86_64_defconfig | Problem Details:
The CONFIG_FRAME_WARN=1024 setting in x86_64_defconfig originates
from arch/um/defconfig, which was split into i386_defconfig and
x86_64_defconfig by commit e40f04d040c6 ("arch/um: make it work
with defconfig and x86_64"). Currently, it's even smaller than the
default on 32bit (i.e., 1280). It's no lon... | ```diff
diff --git a/arch/um/configs/x86_64_defconfig b/arch/um/configs/x86_64_defconfig
index cf309c5406a2..af6ff784e2d3 100644
--- a/arch/um/configs/x86_64_defconfig
+++ b/arch/um/configs/x86_64_defconfig
@@ -60,5 +60,4 @@ CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_NLS=y
CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
... |
cd4126d48f7f61928c18498629ca19a0f846d0c4 | Analyze and fix the following issue in the Linux kernel code: um: Fix pte_read() and pte_exec() for kernel mappings | Problem Details:
The pte_read() and pte_exec() helpers are only used during the TLB
sync to determine the read/exec permissions for mmap. However, for
kernel mappings, they will always return 0. This leads to kern_map()
having to unconditionally set the exec flag to 1 and the read flag
unexpectedly always being 0. Remo... | ```diff
diff --git a/arch/um/include/asm/pgtable.h b/arch/um/include/asm/pgtable.h
index 3b42b0f45bf6..e156ef6f4fdb 100644
--- a/arch/um/include/asm/pgtable.h
+++ b/arch/um/include/asm/pgtable.h
@@ -121,13 +121,12 @@ static inline int pte_none(pte_t pte)
*/
static inline int pte_read(pte_t pte)
{
- return((pte_get_... |
102331b66bcaf1f41f50b9c4cd5c36e46bafa9f3 | Analyze and fix the following issue in the Linux kernel code: um: Fix potential race condition in TLB sync | Problem Details:
During the TLB sync, we need to traverse and modify the page table,
so we should hold the page table lock. Since full SMP support for
threads within the same process is still missing, let's disable the
split page table lock for simplicity.
Fixes: 1e4ee5135d81 ("um: Add initial SMP support")
Signed-off... | ```diff
diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
index 39608cccf2c6..5386ab2d0da5 100644
--- a/arch/um/kernel/tlb.c
+++ b/arch/um/kernel/tlb.c
@@ -165,6 +165,7 @@ int um_tlb_sync(struct mm_struct *mm)
unsigned long addr, next;
int ret = 0;
+ guard(spinlock_irqsave)(&mm->page_table_lock);
guard(s... |
d46dfb369a4627d90efc2c2ffbe29e38e3e74286 | Analyze and fix the following issue in the Linux kernel code: um: avoid struct sigcontext redefinition with musl | Problem Details:
mcontext.c includes both <sys/ucontext.h> and <asm/sigcontext.h>.
With musl libc, this causes a struct sigcontext redefinition error:
<sys/ucontext.h> pulls in musl's <bits/signal.h>, which defines
struct sigcontext directly. The kernel's <asm/sigcontext.h> then
provides a second, conflicting d... | ```diff
diff --git a/arch/x86/um/os-Linux/mcontext.c b/arch/x86/um/os-Linux/mcontext.c
index a21403df6663..b1580df80b3f 100644
--- a/arch/x86/um/os-Linux/mcontext.c
+++ b/arch/x86/um/os-Linux/mcontext.c
@@ -4,7 +4,13 @@
#include <linux/string.h>
#include <sys/ucontext.h>
#include <asm/ptrace.h>
+/*
+ * musl defines ... |
4076f7329832074196e050def49d22265fce2021 | Analyze and fix the following issue in the Linux kernel code: um: fix address-of CMSG_DATA() rvalue in stub | Problem Details:
The UML stub takes the address of CMSG_DATA(fd_msg):
fd_map = (void *)&CMSG_DATA(fd_msg);
CMSG_DATA() is specified by POSIX to return unsigned char *. Taking
its address is semantically wrong -- the intent is to get a pointer
to the control message data, which is exactly what CMSG_DATA()
already... | ```diff
diff --git a/arch/um/kernel/skas/stub.c b/arch/um/kernel/skas/stub.c
index 67cab46a602c..e09216a20cb5 100644
--- a/arch/um/kernel/skas/stub.c
+++ b/arch/um/kernel/skas/stub.c
@@ -146,7 +146,7 @@ restart_wait:
/* Receive the FDs */
num_fds = 0;
fd_msg = msghdr.msg_control;
- fd_map = (void *)&CMSG_DATA... |
431400d49cac4bac944fc2d989921003314667ae | Analyze and fix the following issue in the Linux kernel code: openrisc: mm: Fix section mismatch between map_page and __set_fixmap | Problem Details:
This warning was reported by the kernel test robot:
WARNING: modpost: vmlinux: section mismatch in reference: __set_fixmap+0x84 (section: .text.unlikely) -> map_page.isra.0 (section: .init.text)
With commit 4735037b5d9b ("openrisc: Add text patching API support") the
__set_fixmap function was moved... | ```diff
diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index 78fb0734cdbc..50aee0ea18b7 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -196,7 +196,7 @@ void __init mem_init(void)
return;
}
-static int __init map_page(unsigned long va, phys_addr_t pa, pgprot_t prot)
+static in... |
39f4b29d9e7359d8a5a4d176f09623ad963d4d68 | Analyze and fix the following issue in the Linux kernel code: drm/i915/wm: Include .min_ddb_alloc_uv in the wm dumps | Problem Details:
We include the Y/RGB .min_ddb_alloc in the wm state change dumps.
Do the same for .min_ddb_alloc_uv, on the platforms where it is
used.
Also adjust the whitespace in the other debug prints to keep
the values for each wm level lined up across all the lines.
Signed-off-by: Ville Syrjälä <ville.syrjala@... | ```diff
diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c
index e9cfbb7c9a77..d45b3bcc6ef0 100644
--- a/drivers/gpu/drm/i915/display/skl_watermark.c
+++ b/drivers/gpu/drm/i915/display/skl_watermark.c
@@ -2624,7 +2624,7 @@ skl_print_plane_wm_changes(struct intel_pla... |
2ef3bac16fb5e9eee4fb1d722578a79b751ea58a | Analyze and fix the following issue in the Linux kernel code: crypto: krb5enc - fix sleepable flag handling in encrypt dispatch | Problem Details:
krb5enc_encrypt_ahash_done() continues encryption from an ahash
completion callback by calling krb5enc_dispatch_encrypt().
That helper takes a flags argument for this continuation path, but it
ignored that argument and reused aead_request_flags(req) when setting
up the skcipher subrequest callback. Th... | ```diff
diff --git a/crypto/krb5enc.c b/crypto/krb5enc.c
index a1de55994d92..1bfe8370cf94 100644
--- a/crypto/krb5enc.c
+++ b/crypto/krb5enc.c
@@ -154,7 +154,7 @@ static int krb5enc_dispatch_encrypt(struct aead_request *req,
dst = scatterwalk_ffwd(areq_ctx->dst, req->dst, req->assoclen);
skcipher_request_set_tfm... |
e0ce97f781c78b717b00493630a9e34caf04f79b | Analyze and fix the following issue in the Linux kernel code: crypto: simd - reject compat registrations without __ prefixes | Problem Details:
simd_register_skciphers_compat() and simd_register_aeads_compat()
derive the wrapper algorithm names by stripping the __ prefix from the
internal algorithm names.
Currently they only WARN if cra_name or cra_driver_name lacks that prefix,
but they still continue and unconditionally add 2 to both string... | ```diff
diff --git a/crypto/simd.c b/crypto/simd.c
index f71c4a334c7d..4e6f437e9e77 100644
--- a/crypto/simd.c
+++ b/crypto/simd.c
@@ -214,13 +214,17 @@ int simd_register_skciphers_compat(struct skcipher_alg *algs, int count,
const char *basename;
struct simd_skcipher_alg *simd;
+ for (i = 0; i < count; i++) {
+ ... |
017ecd04985573eeeb0745fa2c23896fb22ee0cc | Analyze and fix the following issue in the Linux kernel code: drm/i915: Unlink NV12 planes earlier | Problem Details:
unlink_nv12_plane() will clobber parts of the plane state
potentially already set up by plane_atomic_check(), so we
must make sure not to call the two in the wrong order.
The problem happens when a plane previously selected as
a Y plane is now configured as a normal plane by user space.
plane_atomic_ch... | ```diff
diff --git a/drivers/gpu/drm/i915/display/intel_plane.c b/drivers/gpu/drm/i915/display/intel_plane.c
index e06a0618b4c6..076b9b356481 100644
--- a/drivers/gpu/drm/i915/display/intel_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_plane.c
@@ -436,11 +436,16 @@ void intel_plane_copy_hw_state(struct intel_plane_s... |
caf6144053b4e1c815aa56afb54745a176f999df | Analyze and fix the following issue in the Linux kernel code: fbdev: matroxfb: Mark variable with __maybe_unused to avoid W=1 build break | Problem Details:
Clang is not happy about set but unused variable:
drivers/video/fbdev/matrox/g450_pll.c:412:18: error: variable 'mnp' set but not used
412 | unsigned int mnp;
| ^
1 error generated.
Since the commit 7b987887f97b ("video: fbdev: matroxfb: remove dead code
and set... | ```diff
diff --git a/drivers/video/fbdev/matrox/g450_pll.c b/drivers/video/fbdev/matrox/g450_pll.c
index e2c1478aa47f..6a08f78cd1ac 100644
--- a/drivers/video/fbdev/matrox/g450_pll.c
+++ b/drivers/video/fbdev/matrox/g450_pll.c
@@ -409,7 +409,7 @@ static int __g450_setclk(struct matrox_fb_info *minfo, unsigned int fout,... |
c3fd16c3b98ed726294feab2f94f876290bf7b61 | Analyze and fix the following issue in the Linux kernel code: virt: tdx-guest: Fix handling of host controlled 'quote' buffer length | Problem Details:
Validate host controlled value `quote_buf->out_len` that determines how
many bytes of the quote are copied out to guest userspace. In TDX
environments with remote attestation, quotes are not considered private,
and can be forwarded to an attestation server.
Catch scenarios where the host specifies a r... | ```diff
diff --git a/drivers/virt/coco/tdx-guest/tdx-guest.c b/drivers/virt/coco/tdx-guest/tdx-guest.c
index 4252b147593a..7cee97559ba2 100644
--- a/drivers/virt/coco/tdx-guest/tdx-guest.c
+++ b/drivers/virt/coco/tdx-guest/tdx-guest.c
@@ -171,6 +171,8 @@ static void tdx_mr_deinit(const struct attribute_group *mr_grp)
... |
a8f5c98517c7c89947024f79e5854e6b09766b79 | Analyze and fix the following issue in the Linux kernel code: soc: hisilicon: kunpeng_hccs: Remove unused input parameter | Problem Details:
The 'hdev' parameter of hccs_create_hccs_dir() is unused.
Remove it to fix the compiler warning.
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com> | ```diff
diff --git a/drivers/soc/hisilicon/kunpeng_hccs.c b/drivers/soc/hisilicon/kunpeng_hccs.c
index d6ff7de63836..0cc2953d59a5 100644
--- a/drivers/soc/hisilicon/kunpeng_hccs.c
+++ b/drivers/soc/hisilicon/kunpeng_hccs.c
@@ -1621,8 +1621,7 @@ static void hccs_remove_topo_dirs(struct hccs_dev *hdev)
hccs_remove_misc... |
3caf4aa0d515080533373f4b75786d295f64e806 | Analyze and fix the following issue in the Linux kernel code: soc: hisilicon: kunpeng_hccs: Fix discard ‘const’ qualifier compiling warning | Problem Details:
The link_fsm_map has ‘const’ qualifier, but the 'str' pointer
in link_fsm_map is discarded. So add 'const' for this pointer
to fix the compiling warning.
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com> | ```diff
diff --git a/drivers/soc/hisilicon/kunpeng_hccs.c b/drivers/soc/hisilicon/kunpeng_hccs.c
index 2af3bfda313e..d6ff7de63836 100644
--- a/drivers/soc/hisilicon/kunpeng_hccs.c
+++ b/drivers/soc/hisilicon/kunpeng_hccs.c
@@ -961,7 +961,7 @@ static ssize_t link_fsm_show(struct kobject *kobj,
struct hccs_link_status ... |
1af997cad473d505248df6d9577183bb91f69670 | Analyze and fix the following issue in the Linux kernel code: arm64: dts: hisilicon: hi3798cv200: Add missing dma-ranges | Problem Details:
Reboot starts failing on Poplar since commit 8424ecdde7df ("arm64: mm:
Set ZONE_DMA size based on devicetree's dma-ranges"), which effectively
changes zone_dma_bits from 30 to 32 for arm64 platforms that do not
properly define dma-ranges in device tree. It's unclear how Poplar reboot
gets broken by th... | ```diff
diff --git a/arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi b/arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi
index f6bc001c3832..2f4ad5da5e33 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi
@@ -122,6 +122,7 @@
#address-cells = <1>;
#size-cel... |
c1f2b0f2b5e37b2c27540a175aea2755a3799433 | Analyze and fix the following issue in the Linux kernel code: arm64: dts: hisilicon: poplar: Correct PCIe reset GPIO polarity | Problem Details:
The PCIe reset GPIO on Poplar is actually active low. The active high
worked before because kernel driver didn't respect the setting from DT.
This is changed since commit 1d26a55fbeb9 ("PCI: histb: Switch to using
gpiod API"), and thus PCIe on Poplar got brken since then.
Fix the problem by correctin... | ```diff
diff --git a/arch/arm64/boot/dts/hisilicon/hi3798cv200-poplar.dts b/arch/arm64/boot/dts/hisilicon/hi3798cv200-poplar.dts
index 7d370dac4c85..579d55daa7d0 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3798cv200-poplar.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi3798cv200-poplar.dts
@@ -179,7 +179,7 @@
};
&pcie ... |
5754a1c9f9b6e298791c4bb34263f37dfe93ee35 | Analyze and fix the following issue in the Linux kernel code: tc-testing: add a test case for ETS offload | Problem Details:
While reviewing the fix for unintentional u32 overflows in ets offload
code, Jamal said:
[...]
> otherwise a tdc test should cover it fine (when you get to the
> netdevsim change perhaps)
Extend tdc to allow setting hw-tc-offload via ethtool, and
add a test case to reproduce the division by zero ... | ```diff
diff --git a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/ets.json b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/ets.json
index a5d94cdec605..ee09e6d6fdf3 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/ets.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/ets.json
@@ -9... |
53edd8309570517137d58e3644976843b817179c | Analyze and fix the following issue in the Linux kernel code: net: netdevsim: correct typo in new_device_store error message | Problem Details:
Fix the format hint by replacing "unit" with "uint" in the pr_err() string.
Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Joe Damato <joe@dama.to>
Link: https://patch.msgid.link/20260319060812.495488-1-alok.a.tiwari@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org> | ```diff
diff --git a/drivers/net/netdevsim/bus.c b/drivers/net/netdevsim/bus.c
index f85b1c261dfb..41483e371f05 100644
--- a/drivers/net/netdevsim/bus.c
+++ b/drivers/net/netdevsim/bus.c
@@ -177,7 +177,7 @@ new_device_store(const struct bus_type *bus, const char *buf, size_t count)
}
break;
default:
- pr_err("... |
27dfe9030acbc601c260b42ecdbb4e5858a97b53 | Analyze and fix the following issue in the Linux kernel code: net: bcmasp: fix double disable of clk | Problem Details:
Switch to devm_clk_get_optional() so we can manage the clock ourselves.
We dynamically control the clocks depending on the state of the interface
for power savings. The default state is clock disabled, so unbinding the
driver causes a double disable.
Fixes: 490cb412007d ("net: bcmasp: Add support for ... | ```diff
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp.c b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
index 2034a1593db7..972474893a6b 100644
--- a/drivers/net/ethernet/broadcom/asp2/bcmasp.c
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
@@ -1249,7 +1249,7 @@ static int bcmasp_probe(struct platform_device ... |
cbfa5be2bf64511d49b854a0f9fd6d0b5118621f | Analyze and fix the following issue in the Linux kernel code: net: bcmasp: fix double free of WoL irq | Problem Details:
We do not need to free wol_irq since it was instantiated with
devm_request_irq(). So devres will free for us.
Fixes: a2f0751206b0 ("net: bcmasp: Add support for WoL magic packet")
Signed-off-by: Justin Chen <justin.chen@broadcom.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: ... | ```diff
diff --git a/drivers/net/ethernet/broadcom/asp2/bcmasp.c b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
index aa6d8606849f..2034a1593db7 100644
--- a/drivers/net/ethernet/broadcom/asp2/bcmasp.c
+++ b/drivers/net/ethernet/broadcom/asp2/bcmasp.c
@@ -1152,12 +1152,6 @@ void bcmasp_enable_wol(struct bcmasp_intf *int... |
ee00a12593ffb69db4dd1a1c00ecb0253376874a | Analyze and fix the following issue in the Linux kernel code: rtnetlink: count IFLA_INFO_SLAVE_KIND in if_nlmsg_size | Problem Details:
rtnl_link_get_slave_info_data_size counts IFLA_INFO_SLAVE_DATA, but
rtnl_link_slave_info_fill adds both IFLA_INFO_SLAVE_DATA and
IFLA_INFO_SLAVE_KIND.
Fixes: ba7d49b1f0f8 ("rtnetlink: provide api for getting and setting slave info")
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Sabrina Dubr... | ```diff
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 0fe279432d82..4a2278614250 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -707,11 +707,14 @@ static size_t rtnl_link_get_slave_info_data_size(const struct net_device *dev)
goto out;
ops = master_dev->rtnl_link_ops;
- if (!ops... |
52501989c76206462d9b11a8485beef40ef41821 | Analyze and fix the following issue in the Linux kernel code: rtnetlink: count IFLA_PARENT_DEV_{NAME,BUS_NAME} in if_nlmsg_size | Problem Details:
Commit 00e77ed8e64d ("rtnetlink: add IFLA_PARENT_[DEV|DEV_BUS]_NAME")
added those attributes to rtnl_fill_ifinfo, but forgot to extend
if_nlmsg_size.
Fixes: 00e77ed8e64d ("rtnetlink: add IFLA_PARENT_[DEV|DEV_BUS]_NAME")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Link: https://patch.msgid.link... | ```diff
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index dad4b1054955..0fe279432d82 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1267,6 +1267,21 @@ static size_t rtnl_dpll_pin_size(const struct net_device *dev)
return size;
}
+static size_t rtnl_dev_parent_size(const struct net_de... |
24dd586bb4cbba1889a50abe74143817a095c1c9 | Analyze and fix the following issue in the Linux kernel code: net/smc: fix double-free of smc_spd_priv when tee() duplicates splice pipe buffer | Problem Details:
smc_rx_splice() allocates one smc_spd_priv per pipe_buffer and stores
the pointer in pipe_buffer.private. The pipe_buf_operations for these
buffers used .get = generic_pipe_buf_get, which only increments the page
reference count when tee(2) duplicates a pipe buffer. The smc_spd_priv
pointer itself wa... | ```diff
diff --git a/net/smc/smc_rx.c b/net/smc/smc_rx.c
index d833e36f7fd4..c1d9b923938d 100644
--- a/net/smc/smc_rx.c
+++ b/net/smc/smc_rx.c
@@ -135,9 +135,16 @@ out:
sock_put(sk);
}
+static bool smc_rx_pipe_buf_get(struct pipe_inode_info *pipe,
+ struct pipe_buffer *buf)
+{
+ /* smc_spd_priv in buf->private ... |
e783e40fb689381caca31e03d28c39e10c82e722 | Analyze and fix the following issue in the Linux kernel code: net: lan743x: fix SGMII detection on PCI1xxxx B0+ during warm reset | Problem Details:
A warm reset on boards using an EEPROM-only strap configuration (where
no MAC address is set in the image) can cause the driver to incorrectly
revert to RGMII mode. This occurs because the ENET_CONFIG_LOAD_STARTED
bit may not persist or behave as expected.
Update pci11x1x_strap_get_status() to use rev... | ```diff
diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index a3845edf0e48..ff48012c8046 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -28,6 +28,12 @@
#define RFE_RD_FIFO_TH_3_DWORDS 0x3
+... |
546b68ac893595877ffbd7751e5c55fd1c43ede6 | Analyze and fix the following issue in the Linux kernel code: openvswitch: validate MPLS set/set_masked payload length | Problem Details:
validate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload for
SET/SET_MASKED actions. In action handling, OVS expects fixed-size
MPLS key data (struct ovs_key_mpls).
Use the already normalized key_len (masked case included) and reject
non-matching MPLS action key sizes.
Reject invalid MPLS ... | ```diff
diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index 67fbf6e48a30..13052408a132 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -2953,6 +2953,8 @@ static int validate_set(const struct nlattr *a,
case OVS_KEY_ATTR_MPLS:
if (!eth_p_mpls(eth_ty... |
6931d21f87bc6d657f145798fad0bf077b82486c | Analyze and fix the following issue in the Linux kernel code: openvswitch: defer tunnel netdev_put to RCU release | Problem Details:
ovs_netdev_tunnel_destroy() may run after NETDEV_UNREGISTER already
detached the device. Dropping the netdev reference in destroy can race
with concurrent readers that still observe vport->dev.
Do not release vport->dev in ovs_netdev_tunnel_destroy(). Instead, let
vport_netdev_free() drop the referenc... | ```diff
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index c688dee96503..12055af832dc 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -196,8 +196,6 @@ void ovs_netdev_tunnel_destroy(struct vport *vport)
*/
if (vport->dev->reg_state == NETREG_REGIS... |
0c3893d37892f332b595906710bf53bbd9c7c572 | Analyze and fix the following issue in the Linux kernel code: selftests/vsock: fix vsock_test path shadowing in nested VMs | Problem Details:
The /root mount introduced for nested VM support shadows any host paths
under /root. This breaks systems where the outer VM runs as root and the
vsock_test binary path is something like:
/root/linux/tools/testing/selftests/vsock/vsock_test
Fix this by copying vsock_test into the temporary home direct... | ```diff
diff --git a/tools/testing/selftests/vsock/vmtest.sh b/tools/testing/selftests/vsock/vmtest.sh
index c8d5cb66bf5f..d97913a6bdc7 100755
--- a/tools/testing/selftests/vsock/vmtest.sh
+++ b/tools/testing/selftests/vsock/vmtest.sh
@@ -393,6 +393,7 @@ handle_build() {
setup_home() {
mkdir -p "$(dirname "${SSH_KEY... |
865926e26e05be52ff311883619b9198298698df | Analyze and fix the following issue in the Linux kernel code: selftests/vsock: fix vmtest.sh for read-only nested VM runners | Problem Details:
When running vmtest.sh inside a nested VM, there occurs a problem
with stacking two sets of virtiofs/overlay layers (the first set from
the outer VM and the second set from the inner VM). The virtme init
scripts (sshd, udhcpd, etc...) fail to execute basic programs (e.g.,
/bin/cat) and load library dep... | ```diff
diff --git a/tools/testing/selftests/vsock/vmtest.sh b/tools/testing/selftests/vsock/vmtest.sh
index 9eacb753238a..c8d5cb66bf5f 100755
--- a/tools/testing/selftests/vsock/vmtest.sh
+++ b/tools/testing/selftests/vsock/vmtest.sh
@@ -42,6 +42,8 @@ readonly KERNEL_CMDLINE="\
virtme.ssh virtme_ssh_channel=tcp virt... |
eb2415854f3ba7d95c4f30d259f6f598ab604616 | Analyze and fix the following issue in the Linux kernel code: net: phylink: add debug for phy_config_inband() | Problem Details:
Add debug for the phy_config_inband() call so we can see which inband
modes are being configured at the PHY.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/E1w2mFk-0000000DXW2-2PR9@rmk-PC.a... | ```diff
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index aba1b35c7cd7..f80cd13c8e32 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1341,6 +1341,13 @@ static void phylink_major_config(struct phylink *pl, bool restart,
}
if (pl->phydev && pl->phy_ib_mode) {
+ phy... |
f44218cd5e6a3d98b137344b808ee154117ce765 | Analyze and fix the following issue in the Linux kernel code: net: airoha: Reset PPE cpu port configuration in airoha_ppe_hw_init() | Problem Details:
Before this patch, the PPE cpu port configuration used for a specific GDM
device was set just running ndo_init() callback during the device
initialization. The selected PPE cpu port configuration depends on the QDMA
block assigned to the GDM port. The QDMA block is selected according to
the GDM port LA... | ```diff
diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c
index db9d9531711e..961325da833b 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -1755,8 +1755,7 @@ static int airoha_dev_init(struct net_device *dev)
{
str... |
6b5f49176a08e01deb7b1435658152237bb44173 | Analyze and fix the following issue in the Linux kernel code: net: dsa: mxl862xx: don't read out-of-bounds | Problem Details:
The write loop in mxl862xx_api_wrap() computes the word count as
(size + 1) / 2, rounding up for odd-sized structs.
On the last iteration of an odd-sized buffer it reads a full __le16
from data[i], accessing one byte past the end of the caller's struct.
KASAN catches this as a stack-out-of-bounds read... | ```diff
diff --git a/drivers/net/dsa/mxl862xx/mxl862xx-host.c b/drivers/net/dsa/mxl862xx/mxl862xx-host.c
index 8c55497a0ce8..4eefd2a759a7 100644
--- a/drivers/net/dsa/mxl862xx/mxl862xx-host.c
+++ b/drivers/net/dsa/mxl862xx/mxl862xx-host.c
@@ -175,8 +175,14 @@ int mxl862xx_api_wrap(struct mxl862xx_priv *priv, u16 cmd, v... |
baa35a698cea26930679a20a7550bbb4c8319725 | Analyze and fix the following issue in the Linux kernel code: net: macb: Protect access to net_device::ip_ptr with RCU lock | Problem Details:
Access to net_device::ip_ptr and its associated members must be
protected by an RCU lock. Since we are modifying this piece of code,
let's also move it to execute only when WAKE_ARP is enabled.
To minimize the duration of the RCU lock, a local variable is used to
temporarily store the IP address. This... | ```diff
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 1b95226ae696..944aab71795c 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -5776,9 +5776,9 @@ static int __maybe_unused macb_suspend(struct device *dev)
... |
317e49358ebbf6390fa439ef3c142f9239dd25fb | Analyze and fix the following issue in the Linux kernel code: net: macb: Move devm_{free,request}_irq() out of spin lock area | Problem Details:
The devm_free_irq() and devm_request_irq() functions should not be
executed in an atomic context.
During device suspend, all userspace processes and most kernel threads
are frozen. Additionally, we flush all tx/rx status, disable all macb
interrupts, and halt rx operations. Therefore, it is safe to sp... | ```diff
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index c16ac9c76aa3..1b95226ae696 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -5835,6 +5835,7 @@ static int __maybe_unused macb_suspend(struct device *dev)
... |
fc0c2f0cba01eb945dc68f57afe06fd4746a7aae | Analyze and fix the following issue in the Linux kernel code: ARM: dts: bcm63138: Fix DMA IRQ | Problem Details:
INTERRUPT_ID_PL081 is (ISR_TABLE_3_OFFSET + 23)
which is 96+3 = 119, convert back to SPI interrupt
119-32 = 87.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: William Zhang <william.zhang@broadcom.com>
Link: https://lore.kernel.org/r/20260218-bcmbca-i2c-dts-v2-2-5373ef82c50c@kern... | ```diff
diff --git a/arch/arm/boot/dts/broadcom/bcm63138.dtsi b/arch/arm/boot/dts/broadcom/bcm63138.dtsi
index 4ec568586b14..8e41c7130406 100644
--- a/arch/arm/boot/dts/broadcom/bcm63138.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm63138.dtsi
@@ -317,7 +317,7 @@
// The magic B105F00D info is missing
arm,primecell-p... |
e2de08086d72dcd7b4c26cda201cb98b518f62c4 | Analyze and fix the following issue in the Linux kernel code: ARM: dts: bcm6878: Fix PL081 DMA block IRQ | Problem Details:
SPI_TABLE_OFFSET_2 is 96 in 6878. 96+30 = 126.
Convert back dtsi SPI interrupt 126 - 32 = 94
Reviewed-by: William Zhang <william.zhang@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20260218-bcmbca-i2c-dts-v2-1-5373ef82c50c@kernel.org
Signed-off-... | ```diff
diff --git a/arch/arm/boot/dts/broadcom/bcm6878.dtsi b/arch/arm/boot/dts/broadcom/bcm6878.dtsi
index dd837bf69390..5a37bfd7f53f 100644
--- a/arch/arm/boot/dts/broadcom/bcm6878.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm6878.dtsi
@@ -244,7 +244,7 @@
// The magic B105F00D info is missing
arm,primecell-perip... |
e7bae9a7a5e1251ab414291f4e9304d702bb9221 | Analyze and fix the following issue in the Linux kernel code: hwmon: (max6639) Fix pulses-per-revolution implementation | Problem Details:
The valid range for the pulses-per-revolution devicetree property is
1..4. The current code checks for a range of 1..5. Fix it.
Declare the variable used to retrieve pulses per revolution from
devicetree as u32 (unsigned) to match the of_property_read_u32() API.
The current code uses a postfix decrem... | ```diff
diff --git a/drivers/hwmon/max6639.c b/drivers/hwmon/max6639.c
index 9a3c515efe2e..163d31f17bd4 100644
--- a/drivers/hwmon/max6639.c
+++ b/drivers/hwmon/max6639.c
@@ -232,7 +232,7 @@ static int max6639_read_fan(struct device *dev, u32 attr, int channel,
static int max6639_set_ppr(struct max6639_data *data, int... |
a261f6dff3c1653c19c065c3b3650c625447b8a7 | Analyze and fix the following issue in the Linux kernel code: check-uapi: link into shared objects | Problem Details:
While testing ABI changes across all architectures, I found that abidiff
sometimes produces nonsensical output. Further debugging identified
missing or broken libelf support for architecture specific relocations
in ET_REL binaries as the source of the problem[1].
Change the script to no longer produce... | ```diff
diff --git a/scripts/check-uapi.sh b/scripts/check-uapi.sh
index 955581735cb3..9fa45cbdecc2 100755
--- a/scripts/check-uapi.sh
+++ b/scripts/check-uapi.sh
@@ -178,8 +178,11 @@ do_compile() {
local -r inc_dir="$1"
local -r header="$2"
local -r out="$3"
- printf "int main(void) { return 0; }\n" | \
- "$CC"... |
1347a742a1e1b080e2e8d200312ae45b8d6ac859 | Analyze and fix the following issue in the Linux kernel code: vfio: selftests: Build tests on aarch64 | Problem Details:
Fix vfio selftests on aarch64, allowing native builds on aarch64 hosts.
Reported-by: Matt Evans <mattev@meta.com>
Closes: https://lore.kernel.org/all/e51b4ff2-13c4-47d4-b781-3dcbd740d274@meta.com/
Fixes: a55d4bbbe644 ("vfio: selftests: only build tests on arm64 and x86_64")
Signed-off-by: Ted Logan <t... | ```diff
diff --git a/tools/testing/selftests/vfio/Makefile b/tools/testing/selftests/vfio/Makefile
index 8e90e409e91d..0684932d91bf 100644
--- a/tools/testing/selftests/vfio/Makefile
+++ b/tools/testing/selftests/vfio/Makefile
@@ -1,6 +1,6 @@
ARCH ?= $(shell uname -m)
-ifeq (,$(filter $(ARCH),arm64 x86_64))
+ifeq (,... |
7a618ca9b9c4769fc5adf7344bb1dd98f823da22 | Analyze and fix the following issue in the Linux kernel code: init/Kconfig: Require a release version of clang-22 for CC_HAS_COUNTED_BY_PTR | Problem Details:
Commit 150a04d817d8 ("compiler_types.h: Attributes: Add __counted_by_ptr
macro") used Clang 22.0.0 as a minimum supported version for
__counted_by_ptr, which made sense while 22.0.0 was the version of
LLVM's main branch to allow developers to easily test and develop uses
of __counted_by_ptr in their co... | ```diff
diff --git a/init/Kconfig b/init/Kconfig
index b55deae9256c..399c0ed3b4a9 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -146,7 +146,7 @@ config CC_HAS_COUNTED_BY
config CC_HAS_COUNTED_BY_PTR
bool
# supported since clang 22
- default y if CC_IS_CLANG && CLANG_VERSION >= 220000
+ default y if CC_IS_CLANG &... |
1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3 | Analyze and fix the following issue in the Linux kernel code: x86/platform/uv: Handle deconfigured sockets | Problem Details:
When a socket is deconfigured, it's mapped to SOCK_EMPTY (0xffff). This causes
a panic while allocating UV hub info structures.
Fix this by using NUMA_NO_NODE, allowing UV hub info structures to be
allocated on valid nodes.
Fixes: 8a50c5851927 ("x86/platform/uv: UV support for sub-NUMA clustering")
S... | ```diff
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 15209f220e1f..42568ceec481 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -1708,8 +1708,22 @@ static void __init uv_system_init_hub(void)
struct uv_hub_info_s *new_hub;
... |
cb7415d8cbb750221b48e5beebe8f402719a20d9 | Analyze and fix the following issue in the Linux kernel code: drm/xe: Fix format specifier for printing pointer differences | Problem Details:
GCC and clang warn (or error with CONFIG_WERROR=y / W=e) several times
when targeting 32-bit platforms along the lines of
drivers/gpu/drm/xe/xe_lrc.c: In function 'dump_mi_command':
drivers/gpu/drm/xe/xe_lrc.c:1921:40: error: format '%lx' expects argument of type 'long unsigned int', but argument ... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_lrc.c b/drivers/gpu/drm/xe/xe_lrc.c
index c5cfd8f75a94..dde3bcff3c22 100644
--- a/drivers/gpu/drm/xe/xe_lrc.c
+++ b/drivers/gpu/drm/xe/xe_lrc.c
@@ -1918,17 +1918,17 @@ static int dump_mi_command(struct drm_printer *p,
while (num_noop < remaining_dw &&
(*(++dw) & R... |
e83b07dc8c05a55d02057b1484724a0b188f6f8d | Analyze and fix the following issue in the Linux kernel code: tools/nolibc: MIPS: fix clobbers of 'lo' and 'hi' registers on different ISAs | Problem Details:
All MIPS ISAs before r6 use the 'lo' and 'hi' special registers.
These are clobbered by system calls and need to be marked as such to
avoid miscompilations. Currently nolibc ties the clobbers to the ABI.
But this is wrong and leads to ISA<->ABI combinations which are not
handled correctly, leading to c... | ```diff
diff --git a/tools/include/nolibc/arch-mips.h b/tools/include/nolibc/arch-mips.h
index bd4a9b57e1f0..bb9d580ea1b1 100644
--- a/tools/include/nolibc/arch-mips.h
+++ b/tools/include/nolibc/arch-mips.h
@@ -39,11 +39,19 @@
* - stack is 16-byte aligned
*/
+#if !defined(__mips_isa_rev) || __mips_isa_rev < 6
+... |
5eae5f1a01aff6f9773547265167d7a680c6fbc3 | Analyze and fix the following issue in the Linux kernel code: tools/nolibc/printf: Special case 0 and add support for %#x | Problem Details:
The output for %#x is almost the same as that for %p, both output in
hexadecimal with a leading "0x".
However for zero %#x should just output "0" (the same as decimal and ocal).
For %p match glibc and output "(nil)" rather than "0x0" or "0".
Add tests for "%#x", "% d", "%+d" and passing NULL to "%p".
... | ```diff
diff --git a/tools/include/nolibc/stdio.h b/tools/include/nolibc/stdio.h
index 65e113f135d4..db714b1ce274 100644
--- a/tools/include/nolibc/stdio.h
+++ b/tools/include/nolibc/stdio.h
@@ -296,7 +296,7 @@ int fseek(FILE *stream, long offset, int whence)
* - %% generates a single %
* - %m outputs strerror(er... |
63f8b60151dc00895137bfadc987f258060ab264 | Analyze and fix the following issue in the Linux kernel code: x86/entry/vdso: Fix path of included gettimeofday.c | Problem Details:
Commit in Fixes forgot to convert one include path to be relative to the
kernel source directory after adding latter to flags-y.
Fix it.
[ bp: Rewrite commit message. ]
Fixes: 693c819fedcd ("x86/entry/vdso: Refactor the vdso build")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-o... | ```diff
diff --git a/arch/x86/entry/vdso/common/vclock_gettime.c b/arch/x86/entry/vdso/common/vclock_gettime.c
index 027b7e88d753..57066f346b3f 100644
--- a/arch/x86/entry/vdso/common/vclock_gettime.c
+++ b/arch/x86/entry/vdso/common/vclock_gettime.c
@@ -13,7 +13,7 @@
#include <linux/types.h>
#include <vdso/gettime.h... |
125632871929e9bf5b0bc907c8fef2d326e4623a | Analyze and fix the following issue in the Linux kernel code: tools/nolibc/printf: Add support for length modifiers tzqL and formats iX | Problem Details:
Length modifiers t (ptrdiff_t) and z (size_t) are aliases for l (long),
q and L are 64bit the same as j (intmax).
Format i is an alias for d and X similar to x but upper case.
Supporting them is mostly just adding the relevant bit to the bit
pattern used for matching characters.
Although %X is detected... | ```diff
diff --git a/tools/include/nolibc/stdio.h b/tools/include/nolibc/stdio.h
index f5a176bffc93..7382b00707fb 100644
--- a/tools/include/nolibc/stdio.h
+++ b/tools/include/nolibc/stdio.h
@@ -291,10 +291,11 @@ int fseek(FILE *stream, long offset, int whence)
}
-/* printf(). Supports the following integer and st... |
4ea2dedd502e2b4bfa8a47f2aaaaac4eab01e00d | Analyze and fix the following issue in the Linux kernel code: selftests/nolibc: Check that snprintf() doesn't write beyond the buffer end | Problem Details:
Fill buf[] with known data and check the vsnprintf() doesn't write
beyond the specified buffer length.
Would have picked up the bug in field padding.
Signed-off-by: David Laight <david.laight.linux@gmail.com>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://patch.msgid.link/20260302101815.3043-7-davi... | ```diff
diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
index 154cc5711a4c..5dc0edfe8d9a 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -1679,6 +1679,10 @@ static int expect_vfprintf(int llen, const... |
4045e7b19bbf7338452cda11e64cfe7ae3361964 | Analyze and fix the following issue in the Linux kernel code: tools/nolibc/printf: Move snprintf length check to callback | Problem Details:
Move output truncation to the snprintf() callback.
This simplifies the main code and fixes truncation of padded fields.
Add a zero length callback to 'finalise' the buffer rather than
doing it in snprintf() itself.
Fixes: e90ce42e81381 ("tools/nolibc: implement width padding in printf()")
Signed-off-... | ```diff
diff --git a/tools/include/nolibc/stdio.h b/tools/include/nolibc/stdio.h
index 77d7669cdb80..a4df72d9a2d3 100644
--- a/tools/include/nolibc/stdio.h
+++ b/tools/include/nolibc/stdio.h
@@ -295,16 +295,25 @@ int fseek(FILE *stream, long offset, int whence)
* - %[l*]{d,u,c,x,p}
* - %s
* - unknown modifiers... |
27532c645e61da541173d43fbe03d234f68232f9 | Analyze and fix the following issue in the Linux kernel code: selftests/nolibc: Fix build with host headers and libc | Problem Details:
Many systems don't have strlcpy() or strlcat() and readdir_r() is
deprecated. This makes the tests fail to build with the host headers.
Disable the 'directories' test and define strlcpy(), strlcat() and
readdir_r() using #defines so that the code compiles.
Fixes: 6fe8360b16acb ("selftests/nolibc: also... | ```diff
diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
index 1aca8468eac4..801b2ad18853 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -82,6 +82,20 @@ static const int is_glibc =
#endif
;
+#if ... |
8ba600aa577f73cc551747fdf121afc7d04afcea | Analyze and fix the following issue in the Linux kernel code: selftests/nolibc: fix test_file_stream() on musl libc | Problem Details:
fwrite() modifying errno is non-standard.
Only validate this behavior on those libc implementations which
implement it.
Fixes: a5f00be9b3b0 ("tools/nolibc: Add a simple test for writing to a FILE and reading it back")
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> | ```diff
diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
index 1b9d3b2e2491..1aca8468eac4 100644
--- a/tools/testing/selftests/nolibc/nolibc-test.c
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -74,6 +74,14 @@ static const int is_nolibc =
#endif
;
+sta... |
217c0a5c177a3d4f7c8497950cbf5c36756e8bbb | Analyze and fix the following issue in the Linux kernel code: x86/efi: efi_unmap_boot_services: fix calculation of ranges_to_free size | Problem Details:
ranges_to_free array should have enough room to store the entire EFI
memmap plus an extra element for NULL entry.
The calculation of this array size wrongly adds 1 to the overall size
instead of adding 1 to the number of elements.
Add parentheses to properly size the array.
Reported-by: Guenter Roeck... | ```diff
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index 35caa5746115..79f0818131e8 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -424,7 +424,7 @@ void __init efi_unmap_boot_services(void)
if (efi_enabled(EFI_DBG))
return;
- sz = sizeof(*ran... |
be8058f31b4e237604e4ce7599593ab68dc69ae7 | Analyze and fix the following issue in the Linux kernel code: rtla: Fix segfault on multiple SIGINTs | Problem Details:
Detach stop_trace() from SIGINT/SIGALRM on tool clean-up to prevent it
from crashing RTLA by accessing freed memory.
This prevents a crash when multiple SIGINTs are received.
Fixes: d6899e560366 ("rtla/timerlat_hist: Abort event processing on second signal")
Fixes: 80967b354a76 ("rtla/timerlat_top: A... | ```diff
diff --git a/tools/tracing/rtla/src/common.c b/tools/tracing/rtla/src/common.c
index 50d8aafdfd3b..35e3d3aa922e 100644
--- a/tools/tracing/rtla/src/common.c
+++ b/tools/tracing/rtla/src/common.c
@@ -41,6 +41,18 @@ static void set_signals(struct common_params *params)
}
}
+/*
+ * unset_signals - unsets the ... |
76f9377cd2ab7a9220c25d33940d9ca20d368172 | Analyze and fix the following issue in the Linux kernel code: writeback: don't block sync for filesystems with no data integrity guarantees | Problem Details:
Add a SB_I_NO_DATA_INTEGRITY superblock flag for filesystems that cannot
guarantee data persistence on sync (eg fuse). For superblocks with this
flag set, sync kicks off writeback of dirty inodes but does not wait
for the flusher threads to complete the writeback.
This replaces the per-inode AS_NO_DAT... | ```diff
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index d8dac1931595..3c75ee025bda 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -2787,13 +2787,8 @@ static void wait_sb_inodes(struct super_block *sb)
* The mapping can appear untagged while still on-list since we
* do not have the mapping lo... |
49e64d7136366a9657d581158d4a20399231530c | Analyze and fix the following issue in the Linux kernel code: init/initramfs.c: trivial fix: FSM -> Finite-state machine | Problem Details:
FSM means "finite-state machine", but I think this is not obvious to
everyone.
Signed-off-by: Askar Safin <safinaskar@gmail.com>
Link: https://patch.msgid.link/20260319232721.452950-1-safinaskar@gmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org> | ```diff
diff --git a/init/initramfs.c b/init/initramfs.c
index 6ddbfb17fb8f..24d7cde4fff0 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -212,7 +212,7 @@ static void __init parse_header(char *s)
hdr_csum = parsed[12];
}
-/* FSM */
+/* Finite-state machine */
static __initdata enum state {
Start,
``` |
215e5fe75881a7e2425df04aeeed47a903d5cd5d | Analyze and fix the following issue in the Linux kernel code: ASoC: SOF: topology: reject invalid vendor array size in token parser | Problem Details:
sof_parse_token_sets() accepts array->size values that can be invalid
for a vendor tuple array header. In particular, a zero size does not
advance the parser state and can lead to non-progress parsing on
malformed topology data.
Validate array->size against the minimum header size and reject values
sm... | ```diff
diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
index 18e2401152c8..35200d801fb7 100644
--- a/sound/soc/sof/topology.c
+++ b/sound/soc/sof/topology.c
@@ -736,7 +736,7 @@ static int sof_parse_token_sets(struct snd_soc_component *scomp,
asize = le32_to_cpu(array->size);
/* validate asize ... |
d9794c0600f95b226b6672c5b364e44c80d660c5 | Analyze and fix the following issue in the Linux kernel code: dma-mapping: fix false kernel-doc comment marker | Problem Details:
Change /** to /* for the DMA attributes list comment in dma-mapping.h.
The comment is not a kernel-doc structured comment and should not use
the kernel-doc opening marker.
Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Kit Dallege <xaum.io@gmail.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@s... | ```diff
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 29973baa0581..0c2807e50bdf 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -9,7 +9,7 @@
#include <linux/bug.h>
#include <linux/cache.h>
-/**
+/*
* List of possible attributes associated with a DMA ma... |
f5ebf241c407dbf629fcf515015e139fcea2c2f0 | Analyze and fix the following issue in the Linux kernel code: mm/hmm: Indicate that HMM requires DMA coherency | Problem Details:
HMM is fundamentally about allowing a sophisticated device to perform DMA
directly to a process’s memory while the CPU accesses that same memory at
the same time. It is similar to SVA but does not rely on IOMMU support.
Because the entire model depends on concurrent access to shared memory, it
fails as... | ```diff
diff --git a/mm/hmm.c b/mm/hmm.c
index f6c4ddff4bd6..5955f2f0c83d 100644
--- a/mm/hmm.c
+++ b/mm/hmm.c
@@ -778,7 +778,7 @@ dma_addr_t hmm_dma_map_pfn(struct device *dev, struct hmm_dma_map *map,
struct page *page = hmm_pfn_to_page(pfns[idx]);
phys_addr_t paddr = hmm_pfn_to_phys(pfns[idx]);
size_t offset =... |
d9d43a3f5c48d5a3d1da922f46c4a30d94d61ba5 | Analyze and fix the following issue in the Linux kernel code: RDMA/umem: Tell DMA mapping that UMEM requires coherency | Problem Details:
The RDMA subsystem exposes DMA regions through the verbs interface, which
assumes a coherent system. Use the DMA_ATTR_REQUIRE_COHERENCE attribute
to ensure coherency and avoid taking the SWIOTLB path.
The RDMA verbs programming model resembles HMM and assumes concurrent DMA
and CPU access to userspace... | ```diff
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index cff4fcca2c34..edc34c69f0f2 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -55,7 +55,8 @@ static void __ib_umem_release(struct ib_device *dev, struct ib_umem *umem, int d
if (dirty)
ib_d... |
636e6572e848339d2ae591949fe81de2cef00563 | Analyze and fix the following issue in the Linux kernel code: iommu/dma: add support for DMA_ATTR_REQUIRE_COHERENT attribute | Problem Details:
Add support for the DMA_ATTR_REQUIRE_COHERENT attribute to the exported
functions. This attribute indicates that the SWIOTLB path must not be
used and that no sync operations should be performed.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.c... | ```diff
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 5dac64be61bb..94d514169642 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -1211,7 +1211,7 @@ dma_addr_t iommu_dma_map_phys(struct device *dev, phys_addr_t phys, size_t size,
*/
if (dev_use_swiotlb(dev, size,... |
2536617f20ddc7c2f4cef59b549aa45d166b03b1 | Analyze and fix the following issue in the Linux kernel code: dma-direct: prevent SWIOTLB path when DMA_ATTR_REQUIRE_COHERENT is set | Problem Details:
DMA_ATTR_REQUIRE_COHERENT indicates that SWIOTLB must not be used.
Ensure the SWIOTLB path is declined whenever the DMA direct path is
selected.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20260316-dma-de... | ```diff
diff --git a/kernel/dma/direct.h b/kernel/dma/direct.h
index e89f175e9c2d..6184ff303f08 100644
--- a/kernel/dma/direct.h
+++ b/kernel/dma/direct.h
@@ -84,7 +84,7 @@ static inline dma_addr_t dma_direct_map_phys(struct device *dev,
dma_addr_t dma_addr;
if (is_swiotlb_force_bounce(dev)) {
- if (attrs & DMA_... |
453b8fb68f3641fea970db88b7d9a153ed2a37e8 | Analyze and fix the following issue in the Linux kernel code: xen/privcmd: restrict usage in unprivileged domU | Problem Details:
The Xen privcmd driver allows to issue arbitrary hypercalls from
user space processes. This is normally no problem, as access is
usually limited to root and the hypervisor will deny any hypercalls
affecting other domains.
In case the guest is booted using secure boot, however, the privcmd
driver would... | ```diff
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
index 1759cc18753f..a83bad69f4f2 100644
--- a/drivers/xen/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -12,6 +12,7 @@
#include <linux/eventfd.h>
#include <linux/file.h>
#include <linux/kernel.h>
+#include <linux/kstrtox.h>
#include <linux/module.h>
#in... |
e6a58fa2556203a7f6731b4071705dc81cca5ca5 | Analyze and fix the following issue in the Linux kernel code: dma-mapping: Introduce DMA require coherency attribute | Problem Details:
The mapping buffers which carry this attribute require DMA coherent system.
This means that they can't take SWIOTLB path, can perform CPU cache overlap
and doesn't perform cache flushing.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link... | ```diff
diff --git a/Documentation/core-api/dma-attributes.rst b/Documentation/core-api/dma-attributes.rst
index 48cfe86cc06d..123c8468d58f 100644
--- a/Documentation/core-api/dma-attributes.rst
+++ b/Documentation/core-api/dma-attributes.rst
@@ -163,3 +163,19 @@ data corruption.
All mappings that share a cache line... |
9bb0a4d6a4433b75274204b083dac8e515d2007d | Analyze and fix the following issue in the Linux kernel code: dma-mapping: Clarify valid conditions for CPU cache line overlap | Problem Details:
Rename the DMA_ATTR_CPU_CACHE_CLEAN attribute to better reflect that it
is debugging aid to inform DMA core code that CPU cache line overlaps are
allowed, and refine the documentation describing its use.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@s... | ```diff
diff --git a/Documentation/core-api/dma-attributes.rst b/Documentation/core-api/dma-attributes.rst
index 1d7bfad73b1c..48cfe86cc06d 100644
--- a/Documentation/core-api/dma-attributes.rst
+++ b/Documentation/core-api/dma-attributes.rst
@@ -149,11 +149,17 @@ For architectures that require cache flushing for DMA c... |
6f45b1604cf43945ef472ae4ef30354025307c19 | Analyze and fix the following issue in the Linux kernel code: dma-mapping: handle DMA_ATTR_CPU_CACHE_CLEAN in trace output | Problem Details:
Tracing prints decoded DMA attribute flags, but it does not yet
include the recently added DMA_ATTR_CPU_CACHE_CLEAN. Add support
for decoding and displaying this attribute in the trace output.
Fixes: 61868dc55a11 ("dma-mapping: add DMA_ATTR_CPU_CACHE_CLEAN")
Signed-off-by: Leon Romanovsky <leonro@nvid... | ```diff
diff --git a/include/trace/events/dma.h b/include/trace/events/dma.h
index 33e99e792f1a..69cb3805ee81 100644
--- a/include/trace/events/dma.h
+++ b/include/trace/events/dma.h
@@ -32,7 +32,8 @@ TRACE_DEFINE_ENUM(DMA_NONE);
{ DMA_ATTR_ALLOC_SINGLE_PAGES, "ALLOC_SINGLE_PAGES" }, \
{ DMA_ATTR_NO_WARN, "NO_WAR... |
eca58535b154e6951327319afda94ac80eae7dc3 | Analyze and fix the following issue in the Linux kernel code: dma-debug: Allow multiple invocations of overlapping entries | Problem Details:
Repeated DMA mappings with DMA_ATTR_CPU_CACHE_CLEAN trigger the
following splat. This prevents using the attribute in cases where a DMA
region is shared and reused more than seven times.
------------[ cut here ]------------
DMA-API: exceeded 7 overlapping mappings of cacheline 0x000000000438c440
WA... | ```diff
diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c
index 86f87e43438c..be207be74996 100644
--- a/kernel/dma/debug.c
+++ b/kernel/dma/debug.c
@@ -453,7 +453,7 @@ static int active_cacheline_set_overlap(phys_addr_t cln, int overlap)
return overlap;
}
-static void active_cacheline_inc_overlap(phys_addr_t cl... |
cf3a5a77d82cec9f48b4bcb615876d020566e43a | Analyze and fix the following issue in the Linux kernel code: arm64: dts: renesas: rzt2h-rzn2h-evk: Fix GMAC pins sort order | Problem Details:
Restore alphabetical sort order of the pin control subnodes by
exchanging the gmac1-pins and gmac2-pins nodes.
While at it, fix the index in an incorrect "GMAC2" comment.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Li... | ```diff
diff --git a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
index 52e5f6c3ab67..4c0e52850ca9 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
@@ -253,6 +253,35 @@
... |
c961cc86af01246a7ce706bbc29072d314e00880 | Analyze and fix the following issue in the Linux kernel code: reset: rzg2l-usbphy-ctrl: Fix malformed MODULE_AUTHOR string | Problem Details:
Fix a malformed MODULE_AUTHOR macro in the RZ/G2L USBPHY control driver
where the author's name and opening angle bracket were missing, leaving
only the email address with a stray closing >. Correct it to the standard
Name <email> format.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-b... | ```diff
diff --git a/drivers/reset/reset-rzg2l-usbphy-ctrl.c b/drivers/reset/reset-rzg2l-usbphy-ctrl.c
index 05dd9b4a02df..fd75d9601a3b 100644
--- a/drivers/reset/reset-rzg2l-usbphy-ctrl.c
+++ b/drivers/reset/reset-rzg2l-usbphy-ctrl.c
@@ -350,4 +350,4 @@ module_platform_driver(rzg2l_usbphy_ctrl_driver);
MODULE_LICEN... |
fbef867cf6614178bc6afd15ee15f85cddf19eab | Analyze and fix the following issue in the Linux kernel code: drm/bridge: samsung-dsim: use drm_bridge_clear_and_put() to put the next bridge | Problem Details:
drm_bridge_clear_and_put() is simpler to write and it prevents any
potential future use-after-free.
Reviewed-by: Osama Abdelkader <osama.abdelkader@gmail.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://patch.msgid.link/20260310-drm-... | ```diff
diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c
index ec632f268644..c3eb437ef1b0 100644
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@@ -1988,9 +1988,7 @@ of_find_panel_or_bridge:
return 0;
err_release_next_bridge:
- drm_... |
8f3c83720555ffa96799896f2a0bb985a03a89f4 | Analyze and fix the following issue in the Linux kernel code: drm/bridge: add drm_bridge_clear_and_put() | Problem Details:
Drivers having a struct drm_bridge pointer pointing to a bridge in many
cases hold that reference until the owning device is removed. In those
cases the reference to the bridge can be put in the .remove callback
(possibly using devm actions) or in the .destroy func (possibly with the
help of struct drm... | ```diff
diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c
index 1868d512ffa1..30d957675d87 100644
--- a/drivers/gpu/drm/drm_bridge.c
+++ b/drivers/gpu/drm/drm_bridge.c
@@ -304,6 +304,9 @@ EXPORT_SYMBOL(drm_bridge_get);
*
* This function decrements the bridge's reference count and frees the
... |
e6d7eba23b666d85cacee0643be280d6ce1ebffc | Analyze and fix the following issue in the Linux kernel code: ata: libata-scsi: report correct sense field pointer in ata_scsiop_maint_in() | Problem Details:
Commit 4ab7bb976343 ("ata: libata-scsi: Refactor ata_scsiop_maint_in()")
modified ata_scsiop_maint_in() to directly call
ata_scsi_set_invalid_field() to set the field pointer of the sense data
of a failed MAINTENANCE IN command. However, in the case of an invalid
command format, the sense data field in... | ```diff
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index ad798e5246b4..3b65df914ebb 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3600,7 +3600,7 @@ static unsigned int ata_scsiop_maint_in(struct ata_device *dev,
if (cdb[2] != 1 && cdb[2] != 3) {
ata_dev_warn(d... |
fc3bbf34e643faa8678aabdc3810c60109f3435a | Analyze and fix the following issue in the Linux kernel code: drm/shmem-helper: Fix huge page mapping in fault handler | Problem Details:
When running ./tools/testing/selftests/mm/split_huge_page_test multiple
times with /sys/kernel/mm/transparent_hugepage/shmem_enabled and
/sys/kernel/mm/transparent_hugepage/enabled set as always the following BUG
occurs:
[ 232.728858] ------------[ cut here ]------------
[ 232.729458] kernel BUG at ... | ```diff
diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index 7b5a49935ae4..c549293b5bb6 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -550,27 +550,27 @@ int drm_gem_shmem_dumb_create(struct drm_file *file, struct drm_dev... |
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