id stringlengths 40 40 | instruction stringlengths 68 308 | input stringlengths 17 33.4k | output stringlengths 100 30k |
|---|---|---|---|
4983d2f55f34748e64f22b514dd5fbfab1c6b0ad | Analyze and fix the following issue in the Linux kernel code: ALSA: sb: Convert to snd_seq bus probe mechanism | Problem Details:
The snd_seq bus got a dedicated probe function. Make use of that. This
fixes a runtime warning about the driver needing to be converted to the
bus probe method.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/cca... | ```diff
diff --git a/sound/isa/sb/emu8000_synth.c b/sound/isa/sb/emu8000_synth.c
index 9bec85ec55b4..3414c6d0695f 100644
--- a/sound/isa/sb/emu8000_synth.c
+++ b/sound/isa/sb/emu8000_synth.c
@@ -21,9 +21,8 @@ MODULE_LICENSE("GPL");
/*
* create a new hardware dependent device for Emu8000
*/
-static int snd_emu8000_... |
505b57e52c9eeef810df23af6064aeb79b601f00 | Analyze and fix the following issue in the Linux kernel code: ALSA: opl4: Convert to snd_seq bus probe mechanism | Problem Details:
The snd_seq bus got a dedicated probe function. Make use of that. This
fixes a runtime warning about the driver needing to be converted to the
bus probe method.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/15c... | ```diff
diff --git a/sound/drivers/opl4/opl4_seq.c b/sound/drivers/opl4/opl4_seq.c
index 7bb22089a093..fd6f15be6109 100644
--- a/sound/drivers/opl4/opl4_seq.c
+++ b/sound/drivers/opl4/opl4_seq.c
@@ -118,9 +118,8 @@ static void snd_opl4_seq_free_port(void *private_data)
snd_midi_channel_free_set(opl4->chset);
}
-st... |
376cdcd3ff18c08540178bc95e1dba49228cd2bd | Analyze and fix the following issue in the Linux kernel code: ALSA: opl3: Convert to snd_seq bus probe mechanism | Problem Details:
The snd_seq bus got a dedicated probe function. Make use of that. This
fixes a runtime warning about the driver needing to be converted to the
bus probe method.
Note that the remove callback returns void now. The actual return value
was ignored before (see device_remove() in drivers/base/dd.c), so the... | ```diff
diff --git a/sound/drivers/opl3/opl3_seq.c b/sound/drivers/opl3/opl3_seq.c
index d3278428d360..b77d8e8f12fb 100644
--- a/sound/drivers/opl3/opl3_seq.c
+++ b/sound/drivers/opl3/opl3_seq.c
@@ -201,9 +201,8 @@ static int snd_opl3_synth_create_port(struct snd_opl3 * opl3)
/* ------------------------------ */
-... |
d1c83a79e3985e7d5961dfe8adb76e1d9a624fb2 | Analyze and fix the following issue in the Linux kernel code: ALSA: seq: ump: Convert to snd_seq bus probe mechanism | Problem Details:
The snd_seq bus got a dedicated probe function. Make use of that. This
fixes a runtime warning about the driver needing to be converted to the
bus probe method.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/054... | ```diff
diff --git a/sound/core/seq/seq_ump_client.c b/sound/core/seq/seq_ump_client.c
index 27247babb16d..a96d21981cbe 100644
--- a/sound/core/seq/seq_ump_client.c
+++ b/sound/core/seq/seq_ump_client.c
@@ -452,9 +452,8 @@ static const struct snd_seq_ump_ops seq_ump_ops = {
};
/* create a sequencer client and ports... |
2e514916e90fd709c07be2a9e2965aa0c66997ee | Analyze and fix the following issue in the Linux kernel code: ALSA: seq: midi: Convert to snd_seq bus probe mechanism | Problem Details:
The snd_seq bus got a dedicated probe function. Make use of that. This
fixes a runtime warning about the driver needing to be converted to the
bus probe method.
Note that the remove callback returns void now. The actual return value
was ignored before (see device_remove() in drivers/base/dd.c), so the... | ```diff
diff --git a/sound/core/seq/seq_midi.c b/sound/core/seq/seq_midi.c
index 581e138a3115..de7ec7d15f23 100644
--- a/sound/core/seq/seq_midi.c
+++ b/sound/core/seq/seq_midi.c
@@ -265,9 +265,8 @@ static void snd_seq_midisynth_delete(struct seq_midisynth *msynth)
/* register new midi synth port */
static int
-snd... |
4cb92fa763823d813d22b45b7f18fcf6e85a72ad | Analyze and fix the following issue in the Linux kernel code: s390/pci: Fix cyclic dead-lock in zpci_zdev_put() and zpci_scan_devices() | Problem Details:
When triggering PCI device recovery by writing into the SysFS attribute
`recover` of a Physical Function with existing child SR-IOV Virtual
Functions, lockdep is reporting a possible deadlock between three
threads:
Thread (A) Thread (B) Thread (C)
| ... | ```diff
diff --git a/.clang-format b/.clang-format
index 2ceca764122f..c7060124a47a 100644
--- a/.clang-format
+++ b/.clang-format
@@ -748,6 +748,7 @@ ForEachMacros:
- 'ynl_attr_for_each_nested'
- 'ynl_attr_for_each_payload'
- 'zorro_for_each_dev'
+ - 'zpci_bus_for_each'
IncludeBlocks: Preserve
IncludeCat... |
430f7803b69cd5e5694e5dfc884c6628870af36e | Analyze and fix the following issue in the Linux kernel code: dmaengine: ti: k3-udma: fix device leak on udma lookup | Problem Details:
Make sure to drop the reference taken when looking up the UDMA platform
device.
Note that holding a reference to a platform device does not prevent its
driver data from going away so there is no point in keeping the
reference after the lookup helper returns.
Fixes: d70241913413 ("dmaengine: ti: k3-ud... | ```diff
diff --git a/drivers/dma/ti/k3-udma-private.c b/drivers/dma/ti/k3-udma-private.c
index 05228bf00033..624360423ef1 100644
--- a/drivers/dma/ti/k3-udma-private.c
+++ b/drivers/dma/ti/k3-udma-private.c
@@ -42,9 +42,9 @@ struct udma_dev *of_xudma_dev_get(struct device_node *np, const char *property)
}
ud = pl... |
4fc17b1c6d2e04ad13fd6c21cfbac68043ec03f9 | Analyze and fix the following issue in the Linux kernel code: dmaengine: ti: dma-crossbar: fix device leak on am335x route allocation | Problem Details:
Make sure to drop the reference taken when looking up the crossbar
platform device during am335x route allocation.
Fixes: 42dbdcc6bf96 ("dmaengine: ti-dma-crossbar: Add support for crossbar on AM33xx/AM43xx")
Cc: stable@vger.kernel.org # 4.4
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Jo... | ```diff
diff --git a/drivers/dma/ti/dma-crossbar.c b/drivers/dma/ti/dma-crossbar.c
index e52b0e139900..ff05b150ad37 100644
--- a/drivers/dma/ti/dma-crossbar.c
+++ b/drivers/dma/ti/dma-crossbar.c
@@ -79,34 +79,35 @@ static void *ti_am335x_xbar_route_allocate(struct of_phandle_args *dma_spec,
{
struct platform_device ... |
dc7e44db01fc2498644e3106db3e62a9883a93d5 | Analyze and fix the following issue in the Linux kernel code: dmaengine: ti: dma-crossbar: fix device leak on dra7x route allocation | Problem Details:
Make sure to drop the reference taken when looking up the crossbar
platform device during dra7x route allocation.
Note that commit 615a4bfc426e ("dmaengine: ti: Add missing put_device in
ti_dra7_xbar_route_allocate") fixed the leak in the error paths but the
reference is still leaking on successful al... | ```diff
diff --git a/drivers/dma/ti/dma-crossbar.c b/drivers/dma/ti/dma-crossbar.c
index 7f17ee87a6dc..e52b0e139900 100644
--- a/drivers/dma/ti/dma-crossbar.c
+++ b/drivers/dma/ti/dma-crossbar.c
@@ -288,6 +288,8 @@ static void *ti_dra7_xbar_route_allocate(struct of_phandle_args *dma_spec,
ti_dra7_xbar_write(xbar->i... |
b1b590a590af13ded598e70f0b72bc1e515787a1 | Analyze and fix the following issue in the Linux kernel code: dmaengine: stm32: dmamux: fix OF node leak on route allocation failure | Problem Details:
Make sure to drop the reference taken to the DMA master OF node also on
late route allocation failures.
Fixes: df7e762db5f6 ("dmaengine: Add STM32 DMAMUX driver")
Cc: stable@vger.kernel.org # 4.15
Cc: Pierre-Yves MORDRET <pierre-yves.mordret@foss.st.com>
Signed-off-by: Johan Hovold <johan@kernel.... | ```diff
diff --git a/drivers/dma/stm32/stm32-dmamux.c b/drivers/dma/stm32/stm32-dmamux.c
index 791179760782..2bd218dbabbb 100644
--- a/drivers/dma/stm32/stm32-dmamux.c
+++ b/drivers/dma/stm32/stm32-dmamux.c
@@ -143,7 +143,7 @@ static void *stm32_dmamux_route_allocate(struct of_phandle_args *dma_spec,
ret = pm_runtime... |
dd6e4943889fb354efa3f700e42739da9bddb6ef | Analyze and fix the following issue in the Linux kernel code: dmaengine: stm32: dmamux: fix device leak on route allocation | Problem Details:
Make sure to drop the reference taken when looking up the DMA mux
platform device during route allocation.
Note that holding a reference to a device does not prevent its driver
data from going away so there is no point in keeping the reference.
Fixes: df7e762db5f6 ("dmaengine: Add STM32 DMAMUX driver... | ```diff
diff --git a/drivers/dma/stm32/stm32-dmamux.c b/drivers/dma/stm32/stm32-dmamux.c
index 8d77e2a7939a..791179760782 100644
--- a/drivers/dma/stm32/stm32-dmamux.c
+++ b/drivers/dma/stm32/stm32-dmamux.c
@@ -90,23 +90,25 @@ static void *stm32_dmamux_route_allocate(struct of_phandle_args *dma_spec,
struct stm32_dma... |
9fb490323997dcb6f749cd2660a17a39854600cd | Analyze and fix the following issue in the Linux kernel code: dmaengine: sh: rz-dmac: fix device leak on probe failure | Problem Details:
Make sure to drop the reference taken when looking up the ICU device
during probe also on probe failures (e.g. probe deferral).
Fixes: 7de873201c44 ("dmaengine: sh: rz-dmac: Add RZ/V2H(P) support")
Cc: stable@vger.kernel.org # 6.16
Cc: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Signed-off-by: Jo... | ```diff
diff --git a/drivers/dma/sh/rz-dmac.c b/drivers/dma/sh/rz-dmac.c
index 1f687b08d6b8..38137e8d80b9 100644
--- a/drivers/dma/sh/rz-dmac.c
+++ b/drivers/dma/sh/rz-dmac.c
@@ -854,6 +854,13 @@ static int rz_dmac_chan_probe(struct rz_dmac *dmac,
return 0;
}
+static void rz_dmac_put_device(void *_dev)
+{
+ struct... |
d9847e6d1d91462890ba297f7888fa598d47e76e | Analyze and fix the following issue in the Linux kernel code: dmaengine: lpc32xx-dmamux: fix device leak on route allocation | Problem Details:
Make sure to drop the reference taken when looking up the DMA mux
platform device during route allocation.
Note that holding a reference to a device does not prevent its driver
data from going away so there is no point in keeping the reference.
Fixes: 5d318b595982 ("dmaengine: Add dma router for pl08... | ```diff
diff --git a/drivers/dma/lpc32xx-dmamux.c b/drivers/dma/lpc32xx-dmamux.c
index 351d7e23e615..33be714740dd 100644
--- a/drivers/dma/lpc32xx-dmamux.c
+++ b/drivers/dma/lpc32xx-dmamux.c
@@ -95,11 +95,12 @@ static void *lpc32xx_dmamux_reserve(struct of_phandle_args *dma_spec,
struct lpc32xx_dmamux_data *dmamux = ... |
d4d63059dee7e7cae0c4d9a532ed558bc90efb55 | Analyze and fix the following issue in the Linux kernel code: dmaengine: lpc18xx-dmamux: fix device leak on route allocation | Problem Details:
Make sure to drop the reference taken when looking up the DMA mux
platform device during route allocation.
Note that holding a reference to a device does not prevent its driver
data from going away so there is no point in keeping the reference.
Fixes: e5f4ae84be74 ("dmaengine: add driver for lpc18xx ... | ```diff
diff --git a/drivers/dma/lpc18xx-dmamux.c b/drivers/dma/lpc18xx-dmamux.c
index 2b6436f4b193..d3ff521951b8 100644
--- a/drivers/dma/lpc18xx-dmamux.c
+++ b/drivers/dma/lpc18xx-dmamux.c
@@ -57,30 +57,31 @@ static void *lpc18xx_dmamux_reserve(struct of_phandle_args *dma_spec,
struct lpc18xx_dmamux_data *dmamux = ... |
799900f01792cf8b525a44764f065f83fcafd468 | Analyze and fix the following issue in the Linux kernel code: dmaengine: idxd: fix device leaks on compat bind and unbind | Problem Details:
Make sure to drop the reference taken when looking up the idxd device as
part of the compat bind and unbind sysfs interface.
Fixes: 6e7f3ee97bbe ("dmaengine: idxd: move dsa_drv support to compatible mode")
Cc: stable@vger.kernel.org # 5.15
Cc: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Johan Hov... | ```diff
diff --git a/drivers/dma/idxd/compat.c b/drivers/dma/idxd/compat.c
index eff9943f1a42..95b8ef958633 100644
--- a/drivers/dma/idxd/compat.c
+++ b/drivers/dma/idxd/compat.c
@@ -20,11 +20,16 @@ static ssize_t unbind_store(struct device_driver *drv, const char *buf, size_t c
int rc = -ENODEV;
dev = bus_find_d... |
ec25e60f9f95464aa11411db31d0906b3fb7b9f2 | Analyze and fix the following issue in the Linux kernel code: dmaengine: dw: dmamux: fix OF node leak on route allocation failure | Problem Details:
Make sure to drop the reference taken to the DMA master OF node also on
late route allocation failures.
Fixes: 134d9c52fca2 ("dmaengine: dw: dmamux: Introduce RZN1 DMA router support")
Cc: stable@vger.kernel.org # 5.19
Cc: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Johan Hovold <johan@ke... | ```diff
diff --git a/drivers/dma/dw/rzn1-dmamux.c b/drivers/dma/dw/rzn1-dmamux.c
index deadf135681b..cbec277af4dd 100644
--- a/drivers/dma/dw/rzn1-dmamux.c
+++ b/drivers/dma/dw/rzn1-dmamux.c
@@ -90,7 +90,7 @@ static void *rzn1_dmamux_route_allocate(struct of_phandle_args *dma_spec,
if (test_and_set_bit(map->req_idx... |
7bb7d696e0361bbfc1411462c784998cca0afcbb | Analyze and fix the following issue in the Linux kernel code: dmaengine: cv1800b-dmamux: fix device leak on route allocation | Problem Details:
Make sure to drop the reference taken when looking up the DMA mux
platform device during route allocation.
Note that holding a reference to a device does not prevent its driver
data from going away so there is no point in keeping the reference.
Fixes: db7d07b5add4 ("dmaengine: add driver for Sophgo C... | ```diff
diff --git a/drivers/dma/cv1800b-dmamux.c b/drivers/dma/cv1800b-dmamux.c
index e900d6595617..f7a952fcbc7d 100644
--- a/drivers/dma/cv1800b-dmamux.c
+++ b/drivers/dma/cv1800b-dmamux.c
@@ -102,11 +102,11 @@ static void *cv1800_dmamux_route_allocate(struct of_phandle_args *dma_spec,
struct llist_node *node;
un... |
7c3a46ebf15a9796b763a54272407fdbf945bed8 | Analyze and fix the following issue in the Linux kernel code: dmaengine: bcm-sba-raid: fix device leak on probe | Problem Details:
Make sure to drop the reference taken when looking up the mailbox device
during probe on probe failures and on driver unbind.
Fixes: 743e1c8ffe4e ("dmaengine: Add Broadcom SBA RAID driver")
Cc: stable@vger.kernel.org # 4.13
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/... | ```diff
diff --git a/drivers/dma/bcm-sba-raid.c b/drivers/dma/bcm-sba-raid.c
index 7f0e76439ce5..ed037fa883f6 100644
--- a/drivers/dma/bcm-sba-raid.c
+++ b/drivers/dma/bcm-sba-raid.c
@@ -1699,7 +1699,7 @@ static int sba_probe(struct platform_device *pdev)
/* Prealloc channel resource */
ret = sba_prealloc_channel_r... |
b9074b2d7a230b6e28caa23165e9d8bc0677d333 | Analyze and fix the following issue in the Linux kernel code: dmaengine: at_hdmac: fix device leak on of_dma_xlate() | Problem Details:
Make sure to drop the reference taken when looking up the DMA platform
device during of_dma_xlate() when releasing channel resources.
Note that commit 3832b78b3ec2 ("dmaengine: at_hdmac: add missing
put_device() call in at_dma_xlate()") fixed the leak in a couple of
error paths but the reference is st... | ```diff
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 7d226453961f..22bb604a3f97 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -1765,6 +1765,7 @@ static int atc_alloc_chan_resources(struct dma_chan *chan)
static void atc_free_chan_resources(struct dma_chan *chan)
{
struct ... |
c7d436a6c1a274c1ac28d5fb3b8eb8f03b6d0e10 | Analyze and fix the following issue in the Linux kernel code: dmaengine: xilinx: xdma: Fix regmap max_register | Problem Details:
The max_register field is assigned the size of the register memory
region instead of the offset of the last register.
The result is that reading from the regmap via debugfs can cause
a segmentation fault:
tail /sys/kernel/debug/regmap/xdma.1.auto/registers
Unable to handle kernel paging request at vir... | ```diff
diff --git a/drivers/dma/xilinx/xdma-regs.h b/drivers/dma/xilinx/xdma-regs.h
index 6ad08878e938..70bca92621aa 100644
--- a/drivers/dma/xilinx/xdma-regs.h
+++ b/drivers/dma/xilinx/xdma-regs.h
@@ -9,6 +9,7 @@
/* The length of register space exposed to host */
#define XDMA_REG_SPACE_LEN 65536
+#define XDMA_MAX... |
49400b701eca849c1b53717b1f5d779a8d066ec0 | Analyze and fix the following issue in the Linux kernel code: dmaengine: mmp_pdma: fix DMA mask handling | Problem Details:
The driver's existing logic for setting the DMA mask for "marvell,pdma-1.0"
was flawed. It incorrectly relied on pdev->dev->coherent_dma_mask instead
of declaring the hardware's fixed addressing capability. A cleaner and
more correct approach is to define the mask directly based on the hardware
limitat... | ```diff
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index d07229a74886..86661eb3cde1 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -152,8 +152,8 @@ struct mmp_pdma_phy {
*
* Controller Configuration:
* @run_bits: Control bits in DCSR register for channel start/stop
- * @dm... |
0bc03750deefc5fdab77b01c459bb1691c64c3c5 | Analyze and fix the following issue in the Linux kernel code: x86/cpu: Drop vestigial PBE logic in AMD/Hygon/Centaur/Cyrix | Problem Details:
Besides formatting changes, this logic dates back to Linux 2.4.0-test11 in
November 2000.
Prior to "Massive cleanup of CPU detection and bug handling",
c->x86_capability was a single u32 containing cpuid(1).edx,
cpuid(0x80000001).edx, or a synthesis thereof. X86_FEATURE_AMD3D was
defined as the top b... | ```diff
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index c04f53f43af1..c792c2afd849 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -1051,12 +1051,6 @@ static void init_amd(struct cpuinfo_x86 *c)
early_init_amd(c);
- /*
- * Bit 31 in normal CPUID used for nonstan... |
fb7bfa31b8e8569f154f2fe0ea6c2f03c0f087aa | Analyze and fix the following issue in the Linux kernel code: x86/cpu/amd: Correct the microcode table for Zenbleed | Problem Details:
The good revisions are tied to exact steppings, meaning it's not valid to
match on model number alone, let alone a range.
This is probably only a latent issue. From public microcode archives, the
following CPUs exist 17-30-00, 17-60-00, 17-70-00 and would be captured by the
model ranges. They're lik... | ```diff
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index bc94ff1e250a..86059f2c0fcd 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -951,26 +951,14 @@ static void init_amd_zen1(struct cpuinfo_x86 *c)
}
}
-static bool cpu_has_zenbleed_microcode(void)
-{
- u32 good_r... |
b89bbf3e5154d0ad024eabb994dabde3fb9e1d6c | Analyze and fix the following issue in the Linux kernel code: ARM: dts: aspeed: clemente: move hdd_led to its own gpio-leds group | Problem Details:
The gpio-leds driver requires all GPIOs in a group to be available;
if any GPIO in the group is not available the whole group will not be
created. The hdd_led GPIO is only present after standby power is
enabled, which can prevent other LEDs in the same group from being
created and blocks properly setti... | ```diff
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts
index dfe8f6d0eeef..ea1bf6f402bd 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts
@@ -96,7 +96,... |
0cf964501fae7bda82c7f120f2ed8f848018b244 | Analyze and fix the following issue in the Linux kernel code: ARM: dts: aspeed: santabarbara: Enable ipmb device for OCP debug card | Problem Details:
Add an IPMB node for OCP debug card to support IPMI communication.
Signed-off-by: Fred Chen <fredchen.openbmc@gmail.com>
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au> | ```diff
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts
index 4312ead311df..0a3e2e241063 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-santabarbara.d... |
157266edcc56715323de1bd60e49194b3b66a174 | Analyze and fix the following issue in the Linux kernel code: x86/boot/e820: Simplify append_e820_table() and remove restriction on single-entry tables | Problem Details:
So append_e820_table() begins with this weird condition that checks 'nr_entries':
static int __init append_e820_table(struct boot_e820_entry *entries, u32 nr_entries)
{
/* Only one memory region (or negative)? Ignore it */
if (nr_entries < 2)
return ... | ```diff
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 46960801c580..806fd92c226a 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -441,17 +441,22 @@ __init int e820__update_table(struct e820_table *table)
return 0;
}
-__init static int __append_e820_table(struct boot_e820_en... |
f40f3f32b34562672364f02f1b7f7929b8467768 | Analyze and fix the following issue in the Linux kernel code: x86/boot/e820: Change e820_search_gap() to search for the highest-address PCI gap | Problem Details:
Right now the main x86 function that determines the position and size
of the 'PCI gap', e820_search_gap(), has this curious property:
while (--idx >= 0) {
...
if (gap >= *gap_size) {
I.e. it will iterate the E820 table backwards, from its end to the beginning,
and will search for larger a... | ```diff
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index b8edc5e32d87..3fba5406502a 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -655,7 +655,7 @@ static int __init e820_search_gap(unsigned long *gap_start, unsigned long *gap_s
if (last > end) {
unsigned long gap = last - ... |
58dcd82d2e2543e0aba4915613debec3c309849b | Analyze and fix the following issue in the Linux kernel code: x86/boot/e820: Standardize e820 table index variable types under 'u32' | Problem Details:
So we have 'idx' types of 'int' and 'unsigned int', and sometimes
we assign 'u32' fields such as e820_table::nr_entries to these 'int'
values.
While there's no real risk of overflow with these tables, make it
all cleaner by standardizing on a single type: u32.
This also happens to shrink the code a b... | ```diff
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index a7dabf809b2b..39f29bf29b7c 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -76,7 +76,7 @@ EXPORT_SYMBOL(pci_mem_start);
static bool _e820__mapped_any(struct e820_table *table,
u64 start, u64 end, enum e820_type typ... |
44f732f3ec8273b99252fcd47f873206d556a69f | Analyze and fix the following issue in the Linux kernel code: x86/boot/e820: Clean up confusing and self-contradictory verbiage around E820 related resource allocations | Problem Details:
So the E820 code has a rather confusing area of code at around
e820__reserve_resources(), which is, by its plain reading,
rather self-contradictory. For example, the comment explaining
e820__reserve_resources() claims:
- '* Mark E820 reserved areas as busy for the resource manager'
By 'E820 reserved... | ```diff
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 6bc06860c6b0..0316a186b42b 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -1064,37 +1064,44 @@ static unsigned long __init e820_type_to_iores_desc(struct e820_entry *entry)
}
}
-static bool __init do_mark_busy(enum e820... |
4d8e5a682be4136758a8beadd5aecc7f76276504 | Analyze and fix the following issue in the Linux kernel code: x86/boot/e820: Print gaps in the E820 table | Problem Details:
Gaps in the E820 table are not obvious at a glance and can
easily be overlooked.
Print out gaps in the E820 table:
Before:
BIOS-provided physical RAM map:
BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable
BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved
BIOS-e820: [mem... | ```diff
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 09c712aec2d0..460645d09c6c 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -202,18 +202,32 @@ static void __init e820_print_type(enum e820_type type)
static void __init e820__print_table(const char *who)
{
+ u64 range_end... |
adbf61cc47cb72b102682e690ad323e1eda652c2 | Analyze and fix the following issue in the Linux kernel code: x86/acpi/boot: Correct acpi_is_processor_usable() check again | Problem Details:
ACPI v6.3 defined a new "Online Capable" MADT LAPIC flag. This bit is
used in conjunction with the "Enabled" MADT LAPIC flag to determine if
a CPU can be enabled/hotplugged by the OS after boot.
Before the new bit was defined, the "Enabled" bit was explicitly
described like this (ACPI v6.0 wording pro... | ```diff
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 9fa321a95eb3..d6138b2b633a 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -35,6 +35,7 @@
#include <asm/smp.h>
#include <asm/i8259.h>
#include <asm/setup.h>
+#include <asm/hypervisor.h>
#include "sle... |
21433d3e3ca14d20f9b0c2237b3d3a1355af7907 | Analyze and fix the following issue in the Linux kernel code: x86/platform/uv: Fix UBSAN array-index-out-of-bounds | Problem Details:
When UBSAN is enabled, multiple array-index-out-of-bounds messages are
printed:
[ 0.000000] [ T0] UBSAN: array-index-out-of-bounds in arch/x86/kernel/apic/x2apic_uv_x.c:276:23
[ 0.000000] [ T0] index 1 is out of range for type '<unknown> [1]'
...
[ 0.000000] [ T0] UBSAN: a... | ```diff
diff --git a/arch/x86/include/asm/uv/bios.h b/arch/x86/include/asm/uv/bios.h
index 6989b824fd32..d0b62e255290 100644
--- a/arch/x86/include/asm/uv/bios.h
+++ b/arch/x86/include/asm/uv/bios.h
@@ -122,7 +122,7 @@ struct uv_systab {
struct {
u32 type:8; /* type of entry */
u32 offset:24; /* byte offset fro... |
3010f06c52aa7da51493df59303ea733a614597b | Analyze and fix the following issue in the Linux kernel code: shmem_whiteout(): fix regression from tree-in-dcache series | Problem Details:
Now that shmem_mknod() hashes the new dentry, d_rehash() in
shmem_whiteout() should be removed.
X-paperbag: brown
Reported-by: Hugh Dickins <hughd@google.com>
Acked-by: Hugh Dickins <hughd@google.com>
Tested-by: Hugh Dickins <hughd@google.com>
Fixes: 2313598222f9 ("convert ramfs and tmpfs")
Signed-off... | ```diff
diff --git a/mm/shmem.c b/mm/shmem.c
index 3f194c9842a8..d3edc809e2e7 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -4019,22 +4019,10 @@ static int shmem_whiteout(struct mnt_idmap *idmap,
whiteout = d_alloc(old_dentry->d_parent, &old_dentry->d_name);
if (!whiteout)
return -ENOMEM;
-
error = shmem_mknod(i... |
6f0b824a61f212e9707ff68abcabfdfa4724b811 | Analyze and fix the following issue in the Linux kernel code: bpf: Fix bpf_seq_read docs for increased buffer size | Problem Details:
Commit af65320948b8 ("bpf: Bump iter seq size to support BTF
representation of large data structures") increased the fixed buffer
size from PAGE_SIZE to PAGE_SIZE << 3, but the docs for the function
didn't get updated at the same time. Update them.
Signed-off-by: T.J. Mercier <tjmercier@google.com>
Ac... | ```diff
diff --git a/kernel/bpf/bpf_iter.c b/kernel/bpf/bpf_iter.c
index eec60b57bd3d..4b58d56ecab1 100644
--- a/kernel/bpf/bpf_iter.c
+++ b/kernel/bpf/bpf_iter.c
@@ -86,7 +86,7 @@ static bool bpf_iter_support_resched(struct seq_file *seq)
/* bpf_seq_read, a customized and simpler version for bpf iterator.
* The f... |
0c01ea92f545ca7fcafdda6a8e29b65ef3a5ec74 | Analyze and fix the following issue in the Linux kernel code: mm: Remove tlb_flush_reason::NR_TLB_FLUSH_REASONS from <linux/mm_types.h> | Problem Details:
This has been unused since it was added 11 years ago in:
d17d8f9dedb9 ("x86/mm: Add tracepoints for TLB flushes")
Signed-off-by: Tal Zussman <tz2294@columbia.edu>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Rik van Riel <riel@surriel.com>
Acked-by: David Hildenbrand <david@redhat.com... | ```diff
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 9f6de068295d..42af2292951d 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -1631,7 +1631,6 @@ enum tlb_flush_reason {
TLB_LOCAL_MM_SHOOTDOWN,
TLB_REMOTE_SEND_IPI,
TLB_REMOTE_WRONG_CPU,
- NR_TLB_FLUSH_REASONS,
}... |
8b62e64e6d30fa047b3aefb1a36e1f80c8acb3d2 | Analyze and fix the following issue in the Linux kernel code: x86/mm/tlb/trace: Export the TLB_REMOTE_WRONG_CPU enum in <trace/events/tlb.h> | Problem Details:
When the TLB_REMOTE_WRONG_CPU enum was introduced for the tlb_flush
tracepoint, the enum was not exported to user-space. Add it to the
appropriate macro definition to enable parsing by userspace tools, as
per:
Link: https://lore.kernel.org/all/20150403013802.220157513@goodmis.org
[ mingo: Capitaliz... | ```diff
diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h
index b4d8e7dc38f8..fb8369511685 100644
--- a/include/trace/events/tlb.h
+++ b/include/trace/events/tlb.h
@@ -12,8 +12,9 @@
EM( TLB_FLUSH_ON_TASK_SWITCH, "flush on task switch" ) \
EM( TLB_REMOTE_SHOOTDOWN, "remote shootdown" ) \
EM( ... |
673b192dbe174b61bdf784d293b5a6e7f2fd20f6 | Analyze and fix the following issue in the Linux kernel code: Input: pf1550 - remove "defined but unused" warning | Problem Details:
If 'CONFIG_PM_SLEEP' is not set, compiler throws warning for *suspend() and
*resume() function for this driver. Using new 'DEFINE_SIMPLE_DEV_PM_OPS'
fixes it.
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Link: https://patch.msgid.link/20251210211149.543928-1-vaibhavgupta40@gmail.com
Signed-... | ```diff
diff --git a/drivers/input/misc/pf1550-onkey.c b/drivers/input/misc/pf1550-onkey.c
index 9be6377151cb..0d1b570bbe47 100644
--- a/drivers/input/misc/pf1550-onkey.c
+++ b/drivers/input/misc/pf1550-onkey.c
@@ -173,7 +173,7 @@ static int pf1550_onkey_resume(struct device *dev)
return 0;
}
-static SIMPLE_DEV_PM... |
cdc996667c26b3c4570881cd9ad2c080da4ce331 | Analyze and fix the following issue in the Linux kernel code: ALSA: hda: Remove unnecessary print function dev_err() | Problem Details:
The print function dev_err() is redundant because platform_get_irq()
already prints an error.
./sound/hda/controllers/cix-ipbloq.c:119:2-9: line 119 is redundant because platform_get_irq() already prints an error.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.... | ```diff
diff --git a/sound/hda/controllers/cix-ipbloq.c b/sound/hda/controllers/cix-ipbloq.c
index 99f9f48e91d4..c1084a915c13 100644
--- a/sound/hda/controllers/cix-ipbloq.c
+++ b/sound/hda/controllers/cix-ipbloq.c
@@ -115,10 +115,8 @@ static int cix_ipbloq_hda_init(struct cix_ipbloq_hda *hda,
bus->addr = res->start;... |
38b069333b58c86b7588d59cc55a065611190926 | Analyze and fix the following issue in the Linux kernel code: drm/sched: Add several job helpers to avoid drivers touching scheduler state | Problem Details:
In the past, drivers used to reach into scheduler internals—this must
end because it makes it difficult to change scheduler internals, as
driver-side code must also be updated.
Add helpers to check if the scheduler is stopped and to query a job’s
signaled state to avoid reaching into scheduler interna... | ```diff
diff --git a/drivers/gpu/drm/scheduler/sched_main.c b/drivers/gpu/drm/scheduler/sched_main.c
index 1d4f1b822e7b..5f08719a35f5 100644
--- a/drivers/gpu/drm/scheduler/sched_main.c
+++ b/drivers/gpu/drm/scheduler/sched_main.c
@@ -344,7 +344,7 @@ drm_sched_rq_select_entity_fifo(struct drm_gpu_scheduler *sched,
*/... |
d2ea4d254d04a89e17504af0230c7268e3cac6bf | Analyze and fix the following issue in the Linux kernel code: file: ensure cleanup | Problem Details:
Brown paper bag time. This is a silly oversight where I missed to drop
the error condition checking to ensure we clean up on early error
returns. I have an internal unit testset coming up for this which will
catch all such issues going forward.
Reported-by: Chris Mason <clm@fb.com>
Reported-by: Jeff L... | ```diff
diff --git a/include/linux/file.h b/include/linux/file.h
index cf389fde9bc2..27484b444d31 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -161,12 +161,10 @@ typedef struct fd_prepare class_fd_prepare_t;
/* Do not use directly. */
static inline void class_fd_prepare_destructor(const struct fd_p... |
d552fc632cf5b7e3b2808fd341708bd353072c45 | Analyze and fix the following issue in the Linux kernel code: x86/hv: Add gitignore entry for generated header file | Problem Details:
Commit 7bfe3b8ea6e3 ("Drivers: hv: Introduce mshv_vtl driver") added a
new generated header file for the offsets into the mshv_vtl_cpu_context
structure to be used by the low-level assembly code. But it didn't add
the .gitignore file to go with it, so 'git status' and friends will
mention it.
Let's a... | ```diff
diff --git a/arch/x86/hyperv/.gitignore b/arch/x86/hyperv/.gitignore
new file mode 100644
index 000000000000..333615d993b5
--- /dev/null
+++ b/arch/x86/hyperv/.gitignore
@@ -0,0 +1 @@
+mshv-asm-offsets.h
``` |
7ef2d25e477368bbd5c32e2265210e55644fdd48 | Analyze and fix the following issue in the Linux kernel code: drm/xe: Track pre-production workaround support | Problem Details:
When we're initially enabling driver support for a new platform/IP, we
usually implement all workarounds documented in the WA database in the
driver. Many of those workarounds are restricted to early steppings
that only showed up in pre-production hardware (i.e., internal test
chips that are not avail... | ```diff
diff --git a/drivers/gpu/drm/xe/regs/xe_gt_regs.h b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
index 917a088c28f2..93643da57428 100644
--- a/drivers/gpu/drm/xe/regs/xe_gt_regs.h
+++ b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
@@ -227,6 +227,9 @@
#define MIRROR_FUSE1 XE_REG(0x911c)
+#define FUSE2 XE_REG(0x9120)... |
fbbd7ce627af733ded7971b2495b0d099a0a80da | Analyze and fix the following issue in the Linux kernel code: genirq: Don't overwrite interrupt thread flags on setup | Problem Details:
Chris reported that the recent affinity management changes result in
overwriting the already initialized thread flags.
Use set_bit() to set the affinity bit instead of assigning the bit value to
the flags.
Fixes: 801afdfbfcd9 ("genirq: Fix interrupt threads affinity vs. cpuset isolated partitions")
R... | ```diff
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 8b1b4c8a4f54..349ae7979da0 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1414,7 +1414,7 @@ setup_irq_thread(struct irqaction *new, unsigned int irq, bool secondary)
* Ensure the thread adjusts the affinity once it reaches the
* ... |
b912138df2993b6271500e5ecbd933acff14ac43 | Analyze and fix the following issue in the Linux kernel code: drm/xe: Create page reclaim list on unbind | Problem Details:
Page reclaim list (PRL) is preparation work for the page reclaim feature.
The PRL is firstly owned by pt_update_ops and all other page reclaim
operations will point back to this PRL. PRL generates its entries during
the unbind page walker, updating the PRL.
This PRL is restricted to a 4K page, so 512 ... | ```diff
diff --git a/drivers/gpu/drm/xe/Makefile b/drivers/gpu/drm/xe/Makefile
index e5f3c2ec9e9a..8b43e391b3d3 100644
--- a/drivers/gpu/drm/xe/Makefile
+++ b/drivers/gpu/drm/xe/Makefile
@@ -95,6 +95,7 @@ xe-y += xe_bb.o \
xe_oa.o \
xe_observation.o \
xe_pagefault.o \
+ xe_page_reclaim.o \
xe_pat.o \
xe_pci.o... |
136209e6bd981e60db6c0e78f2919ff2f92312d4 | Analyze and fix the following issue in the Linux kernel code: i3c: adi: Fix confusing cleanup.h syntax | Problem Details:
Initializing automatic __free variables to NULL without need (e.g.
branches with different allocations), followed by actual allocation is
in contrary to explicit coding rules guiding cleanup.h:
"Given that the "__free(...) = NULL" pattern for variables defined at
the top of the function poses this pot... | ```diff
diff --git a/drivers/i3c/master/adi-i3c-master.c b/drivers/i3c/master/adi-i3c-master.c
index 00eb80e492af..6380a38e6d29 100644
--- a/drivers/i3c/master/adi-i3c-master.c
+++ b/drivers/i3c/master/adi-i3c-master.c
@@ -332,10 +332,9 @@ static int adi_i3c_master_send_ccc_cmd(struct i3c_master_controller *m,
... |
cc3b18f9fedec517e35b973d14670a37290f133c | Analyze and fix the following issue in the Linux kernel code: i3c: master: Fix confusing cleanup.h syntax | Problem Details:
Initializing automatic __free variables to NULL without need (e.g.
branches with different allocations), followed by actual allocation is
in contrary to explicit coding rules guiding cleanup.h:
"Given that the "__free(...) = NULL" pattern for variables defined at
the top of the function poses this pot... | ```diff
diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c
index ea45a519dd68..7f606c871648 100644
--- a/drivers/i3c/master.c
+++ b/drivers/i3c/master.c
@@ -1742,11 +1742,10 @@ EXPORT_SYMBOL_GPL(i3c_master_do_daa);
struct i3c_dma *i3c_master_dma_map_single(struct device *dev, void *buf,
size_t len, bool force_... |
825aed0328588b2837636c1c5a0c48795d724617 | Analyze and fix the following issue in the Linux kernel code: drm/xe: Restore engine registers before restarting schedulers after GT reset | Problem Details:
During GT reset recovery in do_gt_restart(), xe_uc_start() was called
before xe_reg_sr_apply_mmio() restored engine-specific registers. This
created a race window where the scheduler could run jobs before hardware
state was fully restored.
This caused failures in eudebug tests (xe_exec_sip_eudebug@bre... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c
index 7caf781ba9e8..313ce83ab0e5 100644
--- a/drivers/gpu/drm/xe/xe_gt.c
+++ b/drivers/gpu/drm/xe/xe_gt.c
@@ -771,9 +771,6 @@ static int do_gt_restart(struct xe_gt *gt)
xe_gt_sriov_pf_init_hw(gt);
xe_mocs_init(gt);
- err = xe_uc_start(&... |
9869d3a6fed381f3b98404e26e1afc75d680cbf9 | Analyze and fix the following issue in the Linux kernel code: block: fix race between wbt_enable_default and IO submission | Problem Details:
When wbt_enable_default() is moved out of queue freezing in elevator_change(),
it can cause the wbt inflight counter to become negative (-1), leading to hung
tasks in the writeback path. Tasks get stuck in wbt_wait() because the counter
is in an inconsistent state.
The issue occurs because wbt_enable_... | ```diff
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index 4a8d3d96bfe4..6e54b1d3d8bc 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -7181,7 +7181,7 @@ static void bfq_exit_queue(struct elevator_queue *e)
blk_stat_disable_accounting(bfqd->queue);
blk_queue_flag_clear(QUEUE_FLAG_DISABLE_WB... |
52bc483763262b66e51818a82e03cad0c5bfef67 | Analyze and fix the following issue in the Linux kernel code: selftests: ublk: forbid multiple data copy modes | Problem Details:
The kublk mock ublk server allows multiple data copy mode arguments to
be passed on the command line (--zero_copy, --get_data, and --auto_zc).
The ublk device will be created with all the requested feature flags,
however kublk will only use one of the modes to interact with request
data (arbitrarily pr... | ```diff
diff --git a/tools/testing/selftests/ublk/kublk.c b/tools/testing/selftests/ublk/kublk.c
index f8fa102a627f..4dd02cb083ba 100644
--- a/tools/testing/selftests/ublk/kublk.c
+++ b/tools/testing/selftests/ublk/kublk.c
@@ -1613,7 +1613,7 @@ int main(int argc, char *argv[])
ctx.queue_depth = strtol(optarg, NULL,... |
58eec4f3fc2878de51239916953b736b674d5071 | Analyze and fix the following issue in the Linux kernel code: selftests: ublk: fix fio arguments in run_io_and_recover() | Problem Details:
run_io_and_recover() invokes fio with --size="${size}", but the variable
size doesn't exist. Thus, the argument expands to --size=, which causes
fio to exit immediately with an error without issuing any I/O. Pass the
value for size as the first argument to the function.
Signed-off-by: Caleb Sander Mat... | ```diff
diff --git a/tools/testing/selftests/ublk/test_common.sh b/tools/testing/selftests/ublk/test_common.sh
index 8a4dbd09feb0..6f1c042de40e 100755
--- a/tools/testing/selftests/ublk/test_common.sh
+++ b/tools/testing/selftests/ublk/test_common.sh
@@ -333,11 +333,12 @@ run_io_and_kill_daemon()
run_io_and_recover(... |
9637fc3bdd10c8e073f71897bd35babbd21e9b29 | Analyze and fix the following issue in the Linux kernel code: selftests: ublk: fix overflow in ublk_queue_auto_zc_fallback() | Problem Details:
The functions ublk_queue_use_zc(), ublk_queue_use_auto_zc(), and
ublk_queue_auto_zc_fallback() were returning int, but performing
bitwise AND on q->flags which is __u64.
When a flag bit is set in the upper 32 bits (beyond INT_MAX), the
result of the bitwise AND operation could overflow when cast to in... | ```diff
diff --git a/tools/testing/selftests/ublk/kublk.h b/tools/testing/selftests/ublk/kublk.h
index fe42705c6d42..6e8f381f3481 100644
--- a/tools/testing/selftests/ublk/kublk.h
+++ b/tools/testing/selftests/ublk/kublk.h
@@ -390,19 +390,19 @@ static inline int ublk_completed_tgt_io(struct ublk_thread *t,
return --i... |
343f5683cfa443000904c88ce2e23656375fc51c | Analyze and fix the following issue in the Linux kernel code: accel/amdxdna: Fix race where send ring appears full due to delayed head update | Problem Details:
The firmware sends a response and interrupts the driver before advancing
the mailbox send ring head pointer. As a result, the driver may observe
the response and attempt to send a new request before the firmware has
updated the head pointer. In this window, the send ring still appears
full, causing the... | ```diff
diff --git a/drivers/accel/amdxdna/amdxdna_mailbox.c b/drivers/accel/amdxdna/amdxdna_mailbox.c
index a60a85ce564c..469242ed8224 100644
--- a/drivers/accel/amdxdna/amdxdna_mailbox.c
+++ b/drivers/accel/amdxdna/amdxdna_mailbox.c
@@ -191,26 +191,34 @@ mailbox_send_msg(struct mailbox_channel *mb_chann, struct mailb... |
d69d3636f5f7a84bae7cd43473b3701ad9b7d544 | Analyze and fix the following issue in the Linux kernel code: drm/xe: Increase TDF timeout | Problem Details:
There are some corner cases where flushing transient
data may take slightly longer than the 150us timeout
we currently allow. Update the driver to use a 300us
timeout instead based on the latest guidance from
the hardware team. An update to the bspec to formally
document this is expected to arrive soo... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
index 24efb6a3e0ea..339b9aef9499 100644
--- a/drivers/gpu/drm/xe/xe_device.c
+++ b/drivers/gpu/drm/xe/xe_device.c
@@ -1057,7 +1057,7 @@ static void tdf_request_sync(struct xe_device *xe)
* transient and need to be flushed..
*/
... |
f5e1e5ec204da11fa87fdf006d451d80ce06e118 | Analyze and fix the following issue in the Linux kernel code: sched_ext: Fix missing post-enqueue handling in move_local_task_to_local_dsq() | Problem Details:
move_local_task_to_local_dsq() is used when moving a task from a non-local
DSQ to a local DSQ on the same CPU. It directly manipulates the local DSQ
without going through dispatch_enqueue() and was missing the post-enqueue
handling that triggers preemption when SCX_ENQ_PREEMPT is set or the idle
task i... | ```diff
diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c
index c78efa99406f..695503a2f7d1 100644
--- a/kernel/sched/ext.c
+++ b/kernel/sched/ext.c
@@ -988,6 +988,14 @@ static void local_dsq_post_enq(struct scx_dispatch_q *dsq, struct task_struct *p
struct rq *rq = container_of(dsq, struct rq, scx.local_dsq);
bo... |
530b6637c79e728d58f1d9b66bd4acf4b735b86d | Analyze and fix the following issue in the Linux kernel code: sched_ext: Factor out local_dsq_post_enq() from dispatch_enqueue() | Problem Details:
Factor out local_dsq_post_enq() which performs post-enqueue handling for
local DSQs - triggering resched_curr() if SCX_ENQ_PREEMPT is specified or if
the current CPU is idle. No functional change.
This will be used by the next patch to fix move_local_task_to_local_dsq().
Cc: stable@vger.kernel.org # ... | ```diff
diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c
index c4465ccefea4..c78efa99406f 100644
--- a/kernel/sched/ext.c
+++ b/kernel/sched/ext.c
@@ -982,6 +982,22 @@ static void refill_task_slice_dfl(struct scx_sched *sch, struct task_struct *p)
__scx_add_event(sch, SCX_EV_REFILL_SLICE_DFL, 1);
}
+static voi... |
37343524f000d2a64359867d7024a73233d3b438 | Analyze and fix the following issue in the Linux kernel code: btrfs: fix changeset leak on mmap write after failure to reserve metadata | Problem Details:
If the call to btrfs_delalloc_reserve_metadata() fails we jump to the
'out_noreserve' label and there we never free the extent_changeset
allocated by the previous call to btrfs_check_data_free_space() (if
qgroups are enabled). Fix this by calling extent_changeset_free() under
the 'out_noreserve' label.... | ```diff
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 1e0ff3d7210d..e42fd2beb1e3 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2019,13 +2019,14 @@ out:
else
btrfs_delalloc_release_space(inode, data_reserved, page_start,
reserved_space, true);
- extent_changeset_free(data_reserved);
out_... |
b57f2ddd28737db6ff0e9da8467f0ab9d707e997 | Analyze and fix the following issue in the Linux kernel code: btrfs: fix memory leak of fs_devices in degraded seed device path | Problem Details:
In open_seed_devices(), when find_fsid() fails and we're in DEGRADED
mode, a new fs_devices is allocated via alloc_fs_devices() but is never
added to the seed_list before returning. This contrasts with the normal
path where fs_devices is properly added via list_add().
If any error occurs later in read... | ```diff
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index e81c8ac0d8ae..e35872149e2f 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -7131,6 +7131,7 @@ static struct btrfs_fs_devices *open_seed_devices(struct btrfs_fs_info *fs_info,
fs_devices->seeding = true;
fs_devices->opened = 1;
+ lis... |
630efee9493cf64ff7b9a1652978807fef385fdd | Analyze and fix the following issue in the Linux kernel code: drm: Fix object leak in DRM_IOCTL_GEM_CHANGE_HANDLE | Problem Details:
Add missing drm_gem_object_put() call when drm_gem_object_lookup()
successfully returns an object. This fixes a GEM object reference
leak that can prevent driver modules from unloading when using
prime buffers.
Fixes: 53096728b891 ("drm: Add DRM prime interface to reassign GEM handle")
Cc: <stable@vge... | ```diff
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index f884d155a832..3b9df655e837 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -979,8 +979,10 @@ int drm_gem_change_handle_ioctl(struct drm_device *dev, void *data,
if (!obj)
return -ENOENT;
- if (args->handle ... |
bdae29d6512ddc589200b9ae6bda467bdbab863d | Analyze and fix the following issue in the Linux kernel code: rseq: Always inline rseq_debug_syscall_return() | Problem Details:
To get the full benefit of:
eaa9088d568c ("rseq: Use static branch for syscall exit debug when GENERIC_IRQ_ENTRY=y")
clang needs an __always_inline instead of a plain inline qualifier:
$ for i in {1..10}; do taskset -c 4 perf5 bench syscall basic -l 100000000 | grep "ops/sec"; done
Before ... | ```diff
diff --git a/include/linux/rseq_entry.h b/include/linux/rseq_entry.h
index c92167ff8a7f..a36b472627de 100644
--- a/include/linux/rseq_entry.h
+++ b/include/linux/rseq_entry.h
@@ -596,7 +596,7 @@ static __always_inline void rseq_exit_to_user_mode_legacy(void)
void __rseq_debug_syscall_return(struct pt_regs *r... |
d36067d6ea00827e9b8fc087d8216710cb99b3cf | Analyze and fix the following issue in the Linux kernel code: bug: Hush suggest-attribute=format for __warn_printf() | Problem Details:
Recent additions to this function cause GCC 14.3.0 to get excited
(W=1) and suggest a missing attribute:
lib/bug.c: In function '__warn_printf':
lib/bug.c:187:25: error: function '__warn_printf' be a candidate for 'gnu_printf' format attribute [-Werror=suggest-attribute=format]
187 | ... | ```diff
diff --git a/lib/bug.c b/lib/bug.c
index c6f691f3d42d..623c467a8b76 100644
--- a/lib/bug.c
+++ b/lib/bug.c
@@ -173,6 +173,9 @@ struct bug_entry *find_bug(unsigned long bugaddr)
return module_find_bug(bugaddr);
}
+__diag_push();
+__diag_ignore(GCC, all, "-Wsuggest-attribute=format",
+ "Not a valid __p... |
b5e51ef787660bffe9cd059e7abe32f3b1667a98 | Analyze and fix the following issue in the Linux kernel code: bug: Let report_bug_entry() provide the correct bugaddr | Problem Details:
report_bug_entry() always provides zero for bugaddr but could easily
extract the correct address from the provided bug_entry. Just do that to
have proper warning messages.
E.g. adding an artificial:
void foo(void) { WARN_ONCE(1, "bar"); }
function generates this warning message:
WARNING: arch/s... | ```diff
diff --git a/lib/bug.c b/lib/bug.c
index edd9041f89f3..c6f691f3d42d 100644
--- a/lib/bug.c
+++ b/lib/bug.c
@@ -262,7 +262,7 @@ enum bug_trap_type report_bug_entry(struct bug_entry *bug, struct pt_regs *regs)
bool rcu = false;
rcu = warn_rcu_enter();
- ret = __report_bug(bug, 0, regs);
+ ret = __report_bug... |
526aafabd756cc56401b383d6ae554af3e21dcdd | Analyze and fix the following issue in the Linux kernel code: drm/tests: Handle EDEADLK in set_up_atomic_state() | Problem Details:
Fedora/CentOS/RHEL CI is reporting intermittent failures while running
the drm_validate_modeset test [1]:
# drm_test_check_connector_changed_modeset: EXPECTATION FAILED at
# drivers/gpu/drm/tests/drm_atomic_state_test.c:162
Expected ret == 0, but
ret == -35 (0xffffffffffffffdd)
Ch... | ```diff
diff --git a/drivers/gpu/drm/tests/drm_atomic_state_test.c b/drivers/gpu/drm/tests/drm_atomic_state_test.c
index 1e857d86574c..bc27f65b2823 100644
--- a/drivers/gpu/drm/tests/drm_atomic_state_test.c
+++ b/drivers/gpu/drm/tests/drm_atomic_state_test.c
@@ -156,24 +156,29 @@ static int set_up_atomic_state(struct k... |
141d95e42884628314f5ad9394657b0b35424300 | Analyze and fix the following issue in the Linux kernel code: drm/tests: Handle EDEADLK in drm_test_check_valid_clones() | Problem Details:
Fedora/CentOS/RHEL CI is reporting intermittent failures while running
the drm_test_check_valid_clones() KUnit test.
The error log can be either [1]:
# drm_test_check_valid_clones: ASSERTION FAILED at
# drivers/gpu/drm/tests/drm_atomic_state_test.c:295
Expected ret == param->expected_resu... | ```diff
diff --git a/drivers/gpu/drm/tests/drm_atomic_state_test.c b/drivers/gpu/drm/tests/drm_atomic_state_test.c
index 2f6ac7a09f44..1e857d86574c 100644
--- a/drivers/gpu/drm/tests/drm_atomic_state_test.c
+++ b/drivers/gpu/drm/tests/drm_atomic_state_test.c
@@ -283,7 +283,14 @@ static void drm_test_check_valid_clones(... |
fe27e709d91fb645182751b602cb88966b4a1bb6 | Analyze and fix the following issue in the Linux kernel code: drm/tests: hdmi: Handle drm_kunit_helper_enable_crtc_connector() returning EDEADLK | Problem Details:
Fedora/CentOS/RHEL CI is reporting intermittent failures while running
the KUnit tests present in drm_hdmi_state_helper_test.c [1].
While the specific test causing the failure change between runs, all of
them are caused by drm_kunit_helper_enable_crtc_connector() returning
-EDEADLK. The error trace al... | ```diff
diff --git a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c
index 8bd412735000..70f9aa702143 100644
--- a/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c
+++ b/drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c
@@ -257,10 +257,16 @@ static void drm_tes... |
9415f749d34b926b9e4853da1462f4d941f89a0d | Analyze and fix the following issue in the Linux kernel code: perf/x86/intel: Fix NULL event dereference crash in handle_pmi_common() | Problem Details:
handle_pmi_common() may observe an active bit set in cpuc->active_mask
while the corresponding cpuc->events[] entry has already been cleared,
which leads to a NULL pointer dereference.
This can happen when interrupt throttling stops all events in a group
while PEBS processing is still in progress. per... | ```diff
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 853fe073bab3..bdf3f0d0fe21 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -3378,6 +3378,9 @@ static int handle_pmi_common(struct pt_regs *regs, u64 status)
if (!test_bit(bit, cpuc->active_mask))
... |
e58c88f0cb2d8ed89de78f6f17409d29cfab6c5c | Analyze and fix the following issue in the Linux kernel code: Input: lkkbd - disable pending work before freeing device | Problem Details:
lkkbd_interrupt() schedules lk->tq via schedule_work(), and the work
handler lkkbd_reinit() dereferences the lkkbd structure and its
serio/input_dev fields.
lkkbd_disconnect() and error paths in lkkbd_connect() free the lkkbd
structure without preventing the reinit work from being queued again
until s... | ```diff
diff --git a/drivers/input/keyboard/lkkbd.c b/drivers/input/keyboard/lkkbd.c
index c035216dd27c..2f130f819363 100644
--- a/drivers/input/keyboard/lkkbd.c
+++ b/drivers/input/keyboard/lkkbd.c
@@ -670,7 +670,8 @@ static int lkkbd_connect(struct serio *serio, struct serio_driver *drv)
return 0;
- fail3: seri... |
ac87efcf9e42f07526438b67405659a8c1d0480e | Analyze and fix the following issue in the Linux kernel code: x86/boot/Documentation: Fix whitespace noise in boot.rst | Problem Details:
There's a lot of unnecessary whitespace damage in this
file: space before tabs, etc., that has no formatting
or readability effect or advantages.
Fix them.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://patch.msgid.link/176535283007.498.16442167388418039352.tip-bot2@tip-bot2 | ```diff
diff --git a/Documentation/arch/x86/boot.rst b/Documentation/arch/x86/boot.rst
index 18574f010d46..dca3875a2435 100644
--- a/Documentation/arch/x86/boot.rst
+++ b/Documentation/arch/x86/boot.rst
@@ -95,26 +95,26 @@ Memory Layout
The traditional memory map for the kernel loader, used for Image or
zImage kernel... |
c85285b32cc697d7612ee28a9ea9ded5e53d2b57 | Analyze and fix the following issue in the Linux kernel code: drm/xe/multi_queue: Handle CGP context error | Problem Details:
Trigger multi-queue context cleanup upon CGP context error
notification from GuC.
v4: Fix error message
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20251211010249.1647839-30-niranjan... | ```diff
diff --git a/drivers/gpu/drm/xe/abi/guc_actions_abi.h b/drivers/gpu/drm/xe/abi/guc_actions_abi.h
index 3e9fbed9cda6..8af3691626bf 100644
--- a/drivers/gpu/drm/xe/abi/guc_actions_abi.h
+++ b/drivers/gpu/drm/xe/abi/guc_actions_abi.h
@@ -142,6 +142,7 @@ enum xe_guc_action {
XE_GUC_ACTION_REGISTER_CONTEXT_MULTI_Q... |
d716a5088c88391daea7a3bd2b26589060309a79 | Analyze and fix the following issue in the Linux kernel code: drm/xe/multi_queue: Handle tearing down of a multi queue | Problem Details:
As all queues of a multi queue group use the primary queue of the group
to interface with GuC. Hence there is a dependency between the queues of
the group. So, when primary queue of a multi queue group is cleaned up,
also trigger a cleanup of the secondary queues also. During cleanup, stop
and re-start... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_exec_queue.c b/drivers/gpu/drm/xe/xe_exec_queue.c
index 256e2ce1fe69..d337b7bc2b80 100644
--- a/drivers/gpu/drm/xe/xe_exec_queue.c
+++ b/drivers/gpu/drm/xe/xe_exec_queue.c
@@ -87,6 +87,7 @@ static void xe_exec_queue_group_cleanup(struct xe_exec_queue *q)
xe_lrc_put(lrc);
... |
898a00f4b43311adfd4da1711ed2b72adc8c98a5 | Analyze and fix the following issue in the Linux kernel code: drm/xe/multi_queue: Add multi queue priority property | Problem Details:
Add support for queues of a multi queue group to set
their priority within the queue group by adding property
DRM_XE_EXEC_QUEUE_SET_PROPERTY_MULTI_QUEUE_PRIORITY.
This is the only other property supported by secondary
queues of a multi queue group, other than
DRM_XE_EXEC_QUEUE_SET_PROPERTY_MULTI_QUEUE.... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_exec_queue.c b/drivers/gpu/drm/xe/xe_exec_queue.c
index f76ec277c5af..aa46d154d04a 100644
--- a/drivers/gpu/drm/xe/xe_exec_queue.c
+++ b/drivers/gpu/drm/xe/xe_exec_queue.c
@@ -180,6 +180,7 @@ static struct xe_exec_queue *__xe_exec_queue_alloc(struct xe_device *xe,
INIT_LIST_... |
bc5775c59258e1da6fe393845ee5cdd25ca618f3 | Analyze and fix the following issue in the Linux kernel code: drm/xe/multi_queue: Add GuC interface for multi queue support | Problem Details:
Implement GuC commands and response along with the Context
Group Page (CGP) interface for multi queue support.
Ensure that only primary queue (q0) of a multi queue group
communicate with GuC. The secondary queues of the group only
need to maintain LRCA and interface with drm scheduler.
Use primary qu... | ```diff
diff --git a/drivers/gpu/drm/xe/abi/guc_actions_abi.h b/drivers/gpu/drm/xe/abi/guc_actions_abi.h
index 47756e4674a1..3e9fbed9cda6 100644
--- a/drivers/gpu/drm/xe/abi/guc_actions_abi.h
+++ b/drivers/gpu/drm/xe/abi/guc_actions_abi.h
@@ -139,6 +139,9 @@ enum xe_guc_action {
XE_GUC_ACTION_DEREGISTER_G2G = 0x4508,... |
d9ec63474648a258094704ce223c9249fa7bb279 | Analyze and fix the following issue in the Linux kernel code: drm/xe/multi_queue: Add user interface for multi queue support | Problem Details:
Multi Queue is a new mode of execution supported by the compute and
blitter copy command streamers (CCS and BCS, respectively). It is an
enhancement of the existing hardware architecture and leverages the
same submission model. It enables support for efficient, parallel
execution of multiple queues wit... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_exec_queue.c b/drivers/gpu/drm/xe/xe_exec_queue.c
index 02b75652d497..f76ec277c5af 100644
--- a/drivers/gpu/drm/xe/xe_exec_queue.c
+++ b/drivers/gpu/drm/xe/xe_exec_queue.c
@@ -13,6 +13,7 @@
#include <drm/drm_syncobj.h>
#include <uapi/drm/xe_drm.h>
+#include "xe_bo.h"
#inc... |
470cb09a2936d3c1ff8aeff46e3c14dcc4314e9b | Analyze and fix the following issue in the Linux kernel code: drm/plane: Fix IS_ERR() vs NULL bug drm_plane_create_color_pipeline_property() | Problem Details:
The drm_property_create_enum() function returns NULL on error, it never
returns error pointers. Fix the error checking to match.
Fixes: 2afc3184f3b3 ("drm/plane: Add COLOR PIPELINE property")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Simon Ser <contact@emersion.fr>
Link: ... | ```diff
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index f6cfa8ac090c..b87f5f30d36b 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -1867,9 +1867,9 @@ int drm_plane_create_color_pipeline_property(struct drm_plane *plane,
prop = drm_property_create_enum(plane->... |
9f769637a93fac81689b80df6855f545839cf999 | Analyze and fix the following issue in the Linux kernel code: sched_ext: Fix bypass depth leak on scx_enable() failure | Problem Details:
scx_enable() calls scx_bypass(true) to initialize in bypass mode and then
scx_bypass(false) on success to exit. If scx_enable() fails during task
initialization - e.g. scx_cgroup_init() or scx_init_task() returns an error -
it jumps to err_disable while bypass is still active. scx_disable_workfn()
then... | ```diff
diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c
index bd74b371f52d..c4465ccefea4 100644
--- a/kernel/sched/ext.c
+++ b/kernel/sched/ext.c
@@ -41,6 +41,13 @@ static bool scx_init_task_enabled;
static bool scx_switching_all;
DEFINE_STATIC_KEY_FALSE(__scx_switched_all);
+/*
+ * Tracks whether scx_enable()... |
7319c2ceb2d74d54f24b7f5409b97aed406f0189 | Analyze and fix the following issue in the Linux kernel code: drm/xe/vf: Reset recovery_queued after issuing RESFIX_START | Problem Details:
During VF_RESTORE or VF_RESUME, the GuC sends a migration interrupt and
clears the RESFIX_START marker. If migration or resume occurs before the
VF issues its own RESFIX_START, VF KMD may receive two back-to-back
migration interrupts. VF then sends RESFIX_START to indicate the beginning
of fixups and R... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_vf.c b/drivers/gpu/drm/xe/xe_gt_sriov_vf.c
index 47612e67d462..b8b391cfc8eb 100644
--- a/drivers/gpu/drm/xe/xe_gt_sriov_vf.c
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_vf.c
@@ -1171,10 +1171,6 @@ static bool vf_post_migration_shutdown(struct xe_gt *gt)
return true;
}
... |
8d8cf42b03f149dcb545b547906306f3b474565e | Analyze and fix the following issue in the Linux kernel code: drm/xe/vf: Fix queuing of recovery work | Problem Details:
Ensure VF migration recovery work is only queued when no recovery is
already queued and teardown is not in progress.
Fixes: b47c0c07c350 ("drm/xe/vf: Teardown VF post migration worker on driver unload")
Signed-off-by: Satyanarayana K V P <satyanarayana.k.v.p@intel.com>
Cc: Michal Wajdeczko <michal.waj... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_vf.c b/drivers/gpu/drm/xe/xe_gt_sriov_vf.c
index 3c806c8e5f3e..47612e67d462 100644
--- a/drivers/gpu/drm/xe/xe_gt_sriov_vf.c
+++ b/drivers/gpu/drm/xe/xe_gt_sriov_vf.c
@@ -781,7 +781,7 @@ static void vf_start_migration_recovery(struct xe_gt *gt)
spin_lock(>->srio... |
a67fd55f6a09f4119b7232c19e0f348fe31ab0db | Analyze and fix the following issue in the Linux kernel code: netfilter: nf_tables: remove redundant chain validation on register store | Problem Details:
This validation predates the introduction of the state machine that
determines when to enter slow path validation for error reporting.
Currently, table validation is perform when:
- new rule contains expressions that need validation.
- new set element with jump/goto verdict.
Validation on register s... | ```diff
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index f3de2f9bbebf..c46b1bb0efe0 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -11676,21 +11676,10 @@ static int nft_validate_register_store(const struct nft_ctx *ctx,
enum nft_data_types t... |
5ec8ca26fe93103577c904644b0957f069d0051a | Analyze and fix the following issue in the Linux kernel code: netfilter: nf_nat: remove bogus direction check | Problem Details:
Jakub reports spurious failures of the 'conntrack_reverse_clash.sh'
selftest. A bogus test makes nat core resort to port rewrite even
though there is no need for this.
When the test is made, nf_nat_used_tuple() would already have caused us
to return if no other CPU had added a colliding entry.
Moreov... | ```diff
diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c
index 78a61dac4ade..e6b24586d2fe 100644
--- a/net/netfilter/nf_nat_core.c
+++ b/net/netfilter/nf_nat_core.c
@@ -294,25 +294,13 @@ nf_nat_used_tuple_new(const struct nf_conntrack_tuple *tuple,
ct = nf_ct_tuplehash_to_ctrack(thash);
- /*... |
a4ebfb9d95d78a12512b435a698ee6886d712571 | Analyze and fix the following issue in the Linux kernel code: drm/xe/bo: Don't include the CCS metadata in the dma-buf sg-table | Problem Details:
Some Xe bos are allocated with extra backing-store for the CCS
metadata. It's never been the intention to share the CCS metadata
when exporting such bos as dma-buf. Don't include it in the
dma-buf sg-table.
Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs")
Cc: Rodrigo Vivi <rod... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_dma_buf.c b/drivers/gpu/drm/xe/xe_dma_buf.c
index 54e42960daad..7c74a31d4486 100644
--- a/drivers/gpu/drm/xe/xe_dma_buf.c
+++ b/drivers/gpu/drm/xe/xe_dma_buf.c
@@ -124,7 +124,7 @@ static struct sg_table *xe_dma_buf_map(struct dma_buf_attachment *attach,
case XE_PL_TT:
sgt... |
885bebac9909994050bbbeed0829c727e42bd1b7 | Analyze and fix the following issue in the Linux kernel code: nfc: pn533: Fix error code in pn533_acr122_poweron_rdr() | Problem Details:
Set the error code if "transferred != sizeof(cmd)" instead of
returning success.
Fixes: dbafc28955fa ("NFC: pn533: don't send USB data off of the stack")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/aTfIJ9tZPmeUF4W1@stanley.mountain
Signed-off-by: Jakub Kicins... | ```diff
diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c
index ffd7367ce119..018a80674f06 100644
--- a/drivers/nfc/pn533/usb.c
+++ b/drivers/nfc/pn533/usb.c
@@ -406,7 +406,7 @@ static int pn533_acr122_poweron_rdr(struct pn533_usb_phy *phy)
if (rc || (transferred != sizeof(cmd))) {
nfc_err(&phy->udev-... |
3efadf028783a49ab2941294187c8b6dd86bf7da | Analyze and fix the following issue in the Linux kernel code: drm/me/gsc: mei interrupt top half should be in irq disabled context | Problem Details:
MEI GSC interrupt comes from i915 or xe driver. It has top half and
bottom half. Top half is called from i915/xe interrupt handler. It
should be in irq disabled context.
With RT kernel(PREEMPT_RT enabled), by default IRQ handler is in
threaded IRQ. MEI GSC top half might be in threaded IRQ context.
ge... | ```diff
diff --git a/drivers/gpu/drm/xe/xe_heci_gsc.c b/drivers/gpu/drm/xe/xe_heci_gsc.c
index 2b3d49dd394c..495cdd4f948d 100644
--- a/drivers/gpu/drm/xe/xe_heci_gsc.c
+++ b/drivers/gpu/drm/xe/xe_heci_gsc.c
@@ -223,7 +223,7 @@ void xe_heci_gsc_irq_handler(struct xe_device *xe, u32 iir)
if (xe->heci_gsc.irq < 0)
re... |
5914428e0e44c4dcb64ad42cc37fa23a57fd1c5c | Analyze and fix the following issue in the Linux kernel code: selftests/tc-testing: Create tests to exercise ets classes active list misplacements | Problem Details:
Add a test case for a bug fixed by Jamal [1] and for scenario where an
ets drr class is inserted into the active list twice.
- Try to delete ets drr class' qdisc while still keeping it in the
active list
- Try to add ets class to the active list twice
[1] https://lore.kernel.org/netdev/202511281519... | ```diff
diff --git a/tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json b/tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json
index 47de27fd4f90..6a39640aa2a8 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.js... |
b1e125ae425aba9b45252e933ca8df52a843ec70 | Analyze and fix the following issue in the Linux kernel code: net/sched: ets: Remove drr class from the active list if it changes to strict | Problem Details:
Whenever a user issues an ets qdisc change command, transforming a
drr class into a strict one, the ets code isn't checking whether that
class was in the active list and removing it. This means that, if a
user changes a strict class (which was in the active list) back to a drr
one, that class will be a... | ```diff
diff --git a/net/sched/sch_ets.c b/net/sched/sch_ets.c
index ae46643e596d..306e046276d4 100644
--- a/net/sched/sch_ets.c
+++ b/net/sched/sch_ets.c
@@ -664,6 +664,10 @@ static int ets_qdisc_change(struct Qdisc *sch, struct nlattr *opt,
q->classes[i].deficit = quanta[i];
}
}
+ for (i = q->nstrict; i < ns... |
8a11ff0948b5ad09b71896b7ccc850625f9878d1 | Analyze and fix the following issue in the Linux kernel code: caif: fix integer underflow in cffrml_receive() | Problem Details:
The cffrml_receive() function extracts a length field from the packet
header and, when FCS is disabled, subtracts 2 from this length without
validating that len >= 2.
If an attacker sends a malicious packet with a length field of 0 or 1
to an interface with FCS disabled, the subtraction causes an inte... | ```diff
diff --git a/net/caif/cffrml.c b/net/caif/cffrml.c
index 6651a8dc62e0..d4d63586053a 100644
--- a/net/caif/cffrml.c
+++ b/net/caif/cffrml.c
@@ -92,8 +92,15 @@ static int cffrml_receive(struct cflayer *layr, struct cfpkt *pkt)
len = le16_to_cpu(tmp);
/* Subtract for FCS on length if FCS is not used. */
- if... |
0c8b9a68b344ba2aa327278688d66c31f5f04275 | Analyze and fix the following issue in the Linux kernel code: selftests: forwarding: vxlan_bridge_1q_mc_ul: Fix flakiness | Problem Details:
This test runs an overlay traffic, forwarded over a multicast-routed VXLAN
underlay. In order to determine whether packets reach their intended
destination, it uses a TC match. For convenience, it uses a flower match,
which however does not allow matching on the encapsulated packet. So
various service ... | ```diff
diff --git a/tools/testing/selftests/net/forwarding/config b/tools/testing/selftests/net/forwarding/config
index ce64518aaa11..75a6c3d3c1da 100644
--- a/tools/testing/selftests/net/forwarding/config
+++ b/tools/testing/selftests/net/forwarding/config
@@ -29,6 +29,7 @@ CONFIG_NET_ACT_VLAN=m
CONFIG_NET_CLS_BASIC... |
e33a6abdb744e3a015dd53e997c690081a8b985d | Analyze and fix the following issue in the Linux kernel code: ALSA: hda: cix-ipbloq: Use modern PM ops | Problem Details:
When building without CONFIG_PM_SLEEP, there are several warnings (or
errors with CONFIG_WERROR=y / W=e) from the cix-ipbloq driver:
sound/hda/controllers/cix-ipbloq.c:378:12: error: 'cix_ipbloq_hda_runtime_resume' defined but not used [-Werror=unused-function]
378 | static int cix_ipbloq_hda_ru... | ```diff
diff --git a/sound/hda/controllers/cix-ipbloq.c b/sound/hda/controllers/cix-ipbloq.c
index cc9153692ef5..99f9f48e91d4 100644
--- a/sound/hda/controllers/cix-ipbloq.c
+++ b/sound/hda/controllers/cix-ipbloq.c
@@ -407,10 +407,10 @@ static int cix_ipbloq_hda_runtime_resume(struct device *dev)
}
static const str... |
601cc399a01049efa76be8f496541315dc9cf914 | Analyze and fix the following issue in the Linux kernel code: mm: memfd_luo: add CONFIG_SHMEM dependency | Problem Details:
The new memfd code fails to link without SHMEM:
aarch64-linux-ld: mm/memfd_luo.o: in function `memfd_luo_retrieve_folios':
memfd_luo.c:(.text.memfd_luo_retrieve_folios+0xdc): undefined reference to `shmem_add_to_page_cache'
memfd_luo.c:(.text.memfd_luo_retrieve_folios+0x11c): undefined reference to `s... | ```diff
diff --git a/kernel/liveupdate/Kconfig b/kernel/liveupdate/Kconfig
index 9b2515f31afb..d2aeaf13c3ac 100644
--- a/kernel/liveupdate/Kconfig
+++ b/kernel/liveupdate/Kconfig
@@ -54,6 +54,7 @@ config KEXEC_HANDOVER_ENABLE_DEFAULT
config LIVEUPDATE
bool "Live Update Orchestrator"
depends on KEXEC_HANDOVER
+ dep... |
402736a591b040360d36cfc27f6c371103177641 | Analyze and fix the following issue in the Linux kernel code: mm: shmem: avoid build warning for CONFIG_SHMEM=n | Problem Details:
The newly added 'flags' variable is unused and causes a warning if
CONFIG_SHMEM is disabled, since the shmem_acct_size() macro it is passed
into does nothing:
mm/shmem.c: In function '__shmem_file_setup':
mm/shmem.c:5816:23: error: unused variable 'flags' [-Werror=unused-variable]
5816 | unsi... | ```diff
diff --git a/mm/shmem.c b/mm/shmem.c
index 679721e48a87..3c0601d76317 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -5799,8 +5799,15 @@ EXPORT_SYMBOL_GPL(shmem_truncate_range);
#define shmem_vm_ops generic_file_vm_ops
#define shmem_anon_vm_ops generic_file_vm_ops
#define shmem_file_operations ramfs_file... |
2214ec4bf89d0fd27717322d3983a2f3b469c7f3 | Analyze and fix the following issue in the Linux kernel code: ocfs2: fix memory leak in ocfs2_merge_rec_left() | Problem Details:
In 'ocfs2_merge_rec_left()', do not reset 'left_path' to NULL after
move, thus allowing 'ocfs2_free_path()' to free it before return.
Link: https://lkml.kernel.org/r/20251205065159.392749-1-dmantipov@yandex.ru
Fixes: 677b975282e4 ("ocfs2: Add support for cross extent block")
Signed-off-by: Dmitry Anti... | ```diff
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 46da66a883e4..e3195b7e0cd0 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -3655,7 +3655,6 @@ static int ocfs2_merge_rec_left(struct ocfs2_path *right_path,
* So we use the new rightmost path.
*/
ocfs2_mv_path(right_path, left_path);
-... |
7efb45f9685fd9292413f15ea1212f7077c4a35f | Analyze and fix the following issue in the Linux kernel code: ocfs2: invalidate inode if i_mode is zero after block read | Problem Details:
A panic occurs in ocfs2_unlink due to WARN_ON(inode->i_nlink == 0) when
handling a corrupted inode with i_mode=0 and i_nlink=0 in memory.
This "zombie" inode is created because ocfs2_read_locked_inode proceeds
even after ocfs2_validate_inode_block successfully validates a block that
structurally looks... | ```diff
diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index 5986d90b007e..ae938fb7c521 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -1461,6 +1461,14 @@ int ocfs2_validate_inode_block(struct super_block *sb,
goto bail;
}
+ if ((!di->i_links_count && !di->i_links_count_hi) || !di->i_mode) {
+ mlog(M... |
76b9701a54a23fe45dc15aacace616cca9671823 | Analyze and fix the following issue in the Linux kernel code: ocfs2: avoid -Wflex-array-member-not-at-end warning | Problem Details:
-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.
Use the new TRAILING_OVERLAP() helper to fix the following warning:
fs/ocfs2/xattr.c:52:41: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-ar... | ```diff
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 610f1a89d962..55508389ce56 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -49,9 +49,13 @@
#include "ocfs2_trace.h"
struct ocfs2_xattr_def_value_root {
- struct ocfs2_xattr_value_root xv;
- struct ocfs2_extent_rec er;
+ /* Must be last as it en... |
752ba0976b25d69cfac55137573298bd5dd88aa2 | Analyze and fix the following issue in the Linux kernel code: ocfs2: add ocfs2_emergency_state helper and apply to setattr | Problem Details:
Patch series "ocfs2: Refactor read-only checks to use
ocfs2_emergency_state", v4.
Following the fix for the `make_bad_inode` validation failure (syzbot ID:
b93b65ee321c97861072), this separate series introduces a new helper
function, `ocfs2_emergency_state()`, to improve and centralize read-only
and e... | ```diff
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 21d797ccccd0..ddca292944d7 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1136,6 +1136,12 @@ int ocfs2_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
attr->ia_valid & ATTR_GID ?
from_kgid(&init_user_ns, attr->ia_gid) : 0);
+ stat... |
e6b4d264c8c883d8451c7b5f20cd96ddf94af3ef | Analyze and fix the following issue in the Linux kernel code: args: fix documentation to reflect the correct numbers | Problem Details:
The macro uses up to 15 arguments. Reflect this in the top level comment.
Link: https://lkml.kernel.org/r/20251201201018.765475-1-andriy.shevchenko@linux.intel.com
Fixes: d51e783c17ba ("lsm: count the LSMs enabled at compile time")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Re... | ```diff
diff --git a/include/linux/args.h b/include/linux/args.h
index 2e8e65d975c7..0562dc51435e 100644
--- a/include/linux/args.h
+++ b/include/linux/args.h
@@ -6,9 +6,9 @@
/*
* How do these macros work?
*
- * In __COUNT_ARGS() _0 to _12 are just placeholders from the start
+ * In __COUNT_ARGS() _0 to _15 are ju... |
039bef30e320827bac8990c9f29d2a68cd8adb5f | Analyze and fix the following issue in the Linux kernel code: ocfs2: fix kernel BUG in ocfs2_find_victim_chain | Problem Details:
syzbot reported a kernel BUG in ocfs2_find_victim_chain() because the
`cl_next_free_rec` field of the allocation chain list (next free slot in
the chain list) is 0, triggring the BUG_ON(!cl->cl_next_free_rec)
condition in ocfs2_find_victim_chain() and panicking the kernel.
To fix this, an if condition... | ```diff
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 4b9d0ecd0981..8e6e5235b30c 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -1993,6 +1993,16 @@ static int ocfs2_claim_suballoc_bits(struct ocfs2_alloc_context *ac,
}
cl = (struct ocfs2_chain_list *) &fe->id2.i_chain;
+ if (!le16_to... |
bf2c7bf5c48303b76f20537238292571e6aa29f3 | Analyze and fix the following issue in the Linux kernel code: liveupdate: luo_core: fix redundant bound check in luo_ioctl() | Problem Details:
The kernel test robot reported a Smatch warning:
kernel/liveupdate/luo_core.c:402 luo_ioctl() warn: unsigned 'nr' is
never less than zero.
This occurs because 'nr' is unsigned and LIVEUPDATE_CMD_BASE is currently
defined as 0, making the check (nr < LIVEUPDATE_CMD_BASE) always false.
Remove the expli... | ```diff
diff --git a/kernel/liveupdate/luo_core.c b/kernel/liveupdate/luo_core.c
index f7ecaf7740d1..944663d99dd9 100644
--- a/kernel/liveupdate/luo_core.c
+++ b/kernel/liveupdate/luo_core.c
@@ -399,10 +399,8 @@ static long luo_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
int err;
nr = _IOC_NR(c... |
2a4f33430e96d0bebfa37b1d586098f61f030b06 | Analyze and fix the following issue in the Linux kernel code: ocfs2: validate inline xattr size and entry count in ocfs2_xattr_ibody_list | Problem Details:
Add comprehensive validation of inline xattr metadata in
ocfs2_xattr_ibody_list() to prevent out-of-bounds access and
use-after-free bugs when processing corrupted inline xattrs.
The patch adds two critical validations:
1. Validates i_xattr_inline_size before use:
- Ensures it does not exceed bloc... | ```diff
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 73c028f452ac..610f1a89d962 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -971,13 +971,39 @@ static int ocfs2_xattr_ibody_list(struct inode *inode,
struct ocfs2_xattr_header *header = NULL;
struct ocfs2_inode_info *oi = OCFS2_I(inode);
int re... |
d86fea4294cb7878e3866eb567ee803d180a159b | Analyze and fix the following issue in the Linux kernel code: ocfs2: replace deprecated strcpy with strscpy | Problem Details:
strcpy() has been deprecated [1] because it performs no bounds checking on
the destination buffer, which can lead to buffer overflows. Replace it
with the safer strscpy(). No functional changes.
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strcpy [1]
Link: https://lkml.kernel... | ```diff
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index ba26d21344bd..46da66a883e4 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -10,6 +10,7 @@
#include <linux/fs.h>
#include <linux/types.h>
#include <linux/slab.h>
+#include <linux/string.h>
#include <linux/highmem.h>
#include <linux/swap.h>
#inc... |
4ac577ae741e745ecfb64c5a9c7f52fc36aca022 | Analyze and fix the following issue in the Linux kernel code: ocfs2: check tl_used after reading it from trancate log inode | Problem Details:
The fuzz image has a truncate log inode whose tl_used is bigger than
tl_count so it triggers the BUG in ocfs2_truncate_log_needs_flush() [1].
As what the check in ocfs2_truncate_log_needs_flush() does, just do same
check into ocfs2_get_truncate_log_info() when truncate log inode is
reading in so we ca... | ```diff
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 162711cc5b20..ba26d21344bd 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -6164,7 +6164,7 @@ static int ocfs2_get_truncate_log_info(struct ocfs2_super *osb,
struct buffer_head *bh = NULL;
struct ocfs2_dinode *di;
struct ocfs2_truncate_log *tl... |
b2135d1cb0e368dcdb8631ed2f232caefbd7711f | Analyze and fix the following issue in the Linux kernel code: liveupdate: luo_file: don't use invalid list iterator | Problem Details:
If we exit a list_for_each_entry() without hitting a break then the list
iterator points to an offset from the list_head. It's a non-NULL but
invalid pointer and dereferencing it isn't allowed.
Introduce a new "found" variable to test instead.
Link: https://lkml.kernel.org/r/aSlMc4SS09Re4_xn@stanley... | ```diff
diff --git a/kernel/liveupdate/luo_file.c b/kernel/liveupdate/luo_file.c
index ddff87917b21..a32a777f6df8 100644
--- a/kernel/liveupdate/luo_file.c
+++ b/kernel/liveupdate/luo_file.c
@@ -554,17 +554,20 @@ int luo_retrieve_file(struct luo_file_set *file_set, u64 token,
{
struct liveupdate_file_op_args args = ... |
72e24456a54fe04710d89626cc5a88703e2f6202 | Analyze and fix the following issue in the Linux kernel code: Revert "drm/amd/display: Fix pbn to kbps Conversion" | Problem Details:
Deeply daisy chained DP/MST displays are no longer able to light
up. This reverts commit e0dec00f3d05 ("drm/amd/display: Fix pbn
to kbps Conversion")
Cc: Jerry Zuo <jerry.zuo@amd.com>
Reported-by: nat@nullable.se
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4756
Signed-off-by: Mario Limonci... | ```diff
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index dbd1da4d85d3..5e92eaa67aa3 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -8... |
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