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5642c82b9463c3263c086efb002516244bd4c668
Analyze and fix the following issue in the Linux kernel code: bnx2x: Fix firmware version string character counts
Problem Details: A potential string truncation was reported in bnx2x_fill_fw_str(), when a long bp->fw_ver and a long phy_fw_ver might coexist, but seems unlikely with real-world hardware. Use scnprintf() to indicate the intent that truncations are tolerated. While reading this code, I found a collection of various b...
```diff diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index e9c1e1bb5580..528441b28c4e 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -147,10 +147,11 @@ void bnx2x_fill_fw_str(struct b...
31e03207119a535d0b0e3b3a7f91983aeb2cb14d
Analyze and fix the following issue in the Linux kernel code: af_unix: Annotate data-race of gc_in_progress in wait_for_unix_gc().
Problem Details: gc_in_progress is changed under spin_lock(&unix_gc_lock), but wait_for_unix_gc() reads it locklessly. Let's use READ_ONCE(). Fixes: 5f23b734963e ("net: Fix soft lockups/OOM issues w/ unix garbage collector") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://lore.kernel.org/r/20240123...
```diff diff --git a/net/unix/garbage.c b/net/unix/garbage.c index 2405f0f9af31..af3d2221cf6a 100644 --- a/net/unix/garbage.c +++ b/net/unix/garbage.c @@ -198,7 +198,7 @@ void wait_for_unix_gc(void) if (READ_ONCE(unix_tot_inflight) > UNIX_INFLIGHT_TRIGGER_GC && !READ_ONCE(gc_in_progress)) unix_gc(); - wait_e...
348769d1cbfab409b9ac21c653dd4db609760175
Analyze and fix the following issue in the Linux kernel code: drm/xe: correct the assertion for number of PTEs
Problem Details: While one MI_STORE_DATA_IMM can take no more than 0x1fe qwords, the size of the pgtable can be 512 entries. Fixes: 43d48379c939 ("drm/xe: correct the calculation of remaining size") Cc: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Fei Yang <fei.yang@intel.com> Tested-by: José Roberto de Souza...
```diff diff --git a/drivers/gpu/drm/xe/xe_migrate.c b/drivers/gpu/drm/xe/xe_migrate.c index 7abf15546ced..9ab004871f9a 100644 --- a/drivers/gpu/drm/xe/xe_migrate.c +++ b/drivers/gpu/drm/xe/xe_migrate.c @@ -71,6 +71,7 @@ struct xe_migrate { #define NUM_KERNEL_PDE 17 #define NUM_PT_SLOTS 32 #define LEVEL0_PAGE_TABLE_...
99b817c173cd213671daecd25ca27f56b0c7c4ec
Analyze and fix the following issue in the Linux kernel code: lsm: fix the logic in security_inode_getsecctx()
Problem Details: The inode_getsecctx LSM hook has previously been corrected to have -EOPNOTSUPP instead of 0 as the default return value to fix BPF LSM behavior. However, the call_int_hook()-generated loop in security_inode_getsecctx() was left treating 0 as the neutral value, so after an LSM returns 0, the loop contin...
```diff diff --git a/security/security.c b/security/security.c index 0144a98d3712..6196ccaba433 100644 --- a/security/security.c +++ b/security/security.c @@ -4255,7 +4255,19 @@ EXPORT_SYMBOL(security_inode_setsecctx); */ int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) { - return call_int...
dfa988b4c7c3a48bde7c2713308920c7741fff29
Analyze and fix the following issue in the Linux kernel code: net: dsa: mt7530: fix 10M/100M speed on MT7988 switch
Problem Details: Setup PMCR port register for actual speed and duplex on internally connected PHYs of the MT7988 built-in switch. This fixes links with speeds other than 1000M. Fixes: 110c18bfed41 ("net: dsa: mt7530: introduce driver for MT7988 built-in switch") Signed-off-by: Daniel Golle <daniel@makrotopia.org> Revi...
```diff diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 391c4dbdff42..3c1f657593a8 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -2838,8 +2838,7 @@ static void mt753x_phylink_mac_link_up(struct dsa_switch *ds, int port, /* MT753x MAC works in 1G full duplex mode for al...
8d975c15c0cd744000ca386247432d57b21f9df0
Analyze and fix the following issue in the Linux kernel code: ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv()
Problem Details: syzbot found __ip6_tnl_rcv() could access unitiliazed data [1]. Call pskb_inet_may_pull() to fix this, and initialize ipv6h variable after this call as it can change skb->head. [1] BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] BUG: KMSAN: uninit-value in INE...
```diff diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 46c19bd48990..9bbabf750a21 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -796,8 +796,8 @@ static int __ip6_tnl_rcv(struct ip6_tnl *tunnel, struct sk_buff *skb, struct sk_buff *skb), bool log_ecn_err) { - const stru...
89abe628375301fedb68770644df845d49018d8b
Analyze and fix the following issue in the Linux kernel code: selftests: net: give more time for GRO aggregation
Problem Details: The gro.sh test-case relay on the gro_flush_timeout to ensure that all the segments belonging to any given batch are properly aggregated. The other end, the sender is a user-space program transmitting each packet with a separate write syscall. A busy host and/or stracing the sender program can make th...
```diff diff --git a/tools/testing/selftests/net/setup_veth.sh b/tools/testing/selftests/net/setup_veth.sh index a9a1759e035c..1f78a87f6f37 100644 --- a/tools/testing/selftests/net/setup_veth.sh +++ b/tools/testing/selftests/net/setup_veth.sh @@ -11,7 +11,7 @@ setup_veth_ns() { local -r ns_mac="$4" [[ -e /var/run...
d3cb3b0088ca92082e2bebc40cc6894a632173e2
Analyze and fix the following issue in the Linux kernel code: selftests: net: add missing required classifier
Problem Details: the udpgro_fraglist self-test uses the BPF classifiers, but the current net self-test configuration does not include it, causing CI failures: # selftests: net: udpgro_frglist.sh # ipv6 # tcp - over veth touching data # -l 4 -6 -D 2001:db8::1 -t rx -4 -t # Error: TC classifier not found. # We hav...
```diff diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config index 413ab9abcf1b..56da5d52674c 100644 --- a/tools/testing/selftests/net/config +++ b/tools/testing/selftests/net/config @@ -51,6 +51,7 @@ CONFIG_NETFILTER_XT_MATCH_LENGTH=m CONFIG_NET_ACT_CT=m CONFIG_NET_ACT_GACT=m CONFIG_...
281cb9d65a95c00bb844f332cd187491d2d55496
Analyze and fix the following issue in the Linux kernel code: bnxt_en: Make PTP timestamp HWRM more silent
Problem Details: commit 056bce63c469 ("bnxt_en: Make PTP TX timestamp HWRM query silent") changed a netdev_err() to netdev_WARN_ONCE(). netdev_WARN_ONCE() is it generates a kernel WARNING, which is bad, for the following reasons: * You do not a kernel warning if the firmware queries are late * In busy networks, tim...
```diff diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c index adad188e38b8..cc07660330f5 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c @@ -684,7 +684,7 @@ static void bnxt_stamp_tx_skb(struct bnxt...
c3dfcdb65ec1a4813ec1e0871c52c671ba9c71ac
Analyze and fix the following issue in the Linux kernel code: net/smc: fix incorrect SMC-D link group matching logic
Problem Details: The logic to determine if SMC-D link group matches is incorrect. The correct logic should be that it only returns true when the GID is the same, and the SMC-D device is the same and the extended GID is the same (in the case of virtual ISM). It can be fixed by adding brackets around the conditional (or...
```diff diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index 95cc95458e2d..e4c858411207 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -1877,9 +1877,15 @@ static bool smcd_lgr_match(struct smc_link_group *lgr, struct smcd_dev *smcismdev, struct smcd_gid *peer_gid) { - return lgr->peer_...
d0266d7ab1618482d58015d67a5220e590333298
Analyze and fix the following issue in the Linux kernel code: Revert "power: supply: qcom_battmgr: Register the power supplies after PDR is up"
Problem Details: This reverts commit b43f7ddc2b7a5a90447d96cb4d3c6d142dd4a810. The offending commit deferred power-supply class device registration until the service-started notification is received. This triggers a NULL pointer dereference during boot of the Lenovo ThinkPad X13s and SC8280XP CRD as battery status no...
```diff diff --git a/drivers/power/supply/qcom_battmgr.c b/drivers/power/supply/qcom_battmgr.c index a12e2a66d516..ec163d1bcd18 100644 --- a/drivers/power/supply/qcom_battmgr.c +++ b/drivers/power/supply/qcom_battmgr.c @@ -282,7 +282,6 @@ struct qcom_battmgr_wireless { struct qcom_battmgr { struct device *dev; - s...
c60fe56c169eb552113a4711db3a5f99e3acd4c1
Analyze and fix the following issue in the Linux kernel code: hwmon: (pmbus/mp2975) Fix driver initialization for MP2975 device
Problem Details: The commit 1feb31e810b0 ("hwmon: (pmbus/mp2975) Simplify VOUT code") has introduced a bug that makes it impossible to initialize MP2975 device: """ mp2975 5-0020: Failed to identify chip capabilities i2c i2c-5: new_device: Instantiated device mp2975 at 0x20 i2c i2c-5: delete_device: Deleting device mp2...
```diff diff --git a/drivers/hwmon/pmbus/mp2975.c b/drivers/hwmon/pmbus/mp2975.c index b9bb469e2d8f..5bbfdacb61a7 100644 --- a/drivers/hwmon/pmbus/mp2975.c +++ b/drivers/hwmon/pmbus/mp2975.c @@ -126,6 +126,22 @@ static const struct regulator_desc __maybe_unused mp2975_reg_desc[] = { #define to_mp2975_data(x) contai...
dc75d03716fe3944210a9381884c6b699fe0de90
Analyze and fix the following issue in the Linux kernel code: drm/xe/guc: Add more GuC CT states
Problem Details: The Guc CT has more than enabled / disables states rather it has 4. The 4 states are not initialized, disabled, stopped, and enabled. Change the code to reflect this. These states will enable proper return codes from functions and therefore enable proper error messages. v2: - s/XE_GUC_CT_STATE_DROP_ME...
```diff diff --git a/drivers/gpu/drm/xe/xe_guc.c b/drivers/gpu/drm/xe/xe_guc.c index 576ff2c1fbb9..fcb8a9efac70 100644 --- a/drivers/gpu/drm/xe/xe_guc.c +++ b/drivers/gpu/drm/xe/xe_guc.c @@ -684,7 +684,7 @@ int xe_guc_mmio_send_recv(struct xe_guc *guc, const u32 *request, BUILD_BUG_ON(VF_SW_FLAG_COUNT != MED_VF_SW_...
0958b33ef5a04ed91f61cef4760ac412080c4e08
Analyze and fix the following issue in the Linux kernel code: tracing/trigger: Fix to return error if failed to alloc snapshot
Problem Details: Fix register_snapshot_trigger() to return error code if it failed to allocate a snapshot instead of 0 (success). Unless that, it will register snapshot trigger without an error. Link: https://lore.kernel.org/linux-trace-kernel/170622977792.270660.2789298642759362200.stgit@devnote2 Fixes: 0bbe7f719985...
```diff diff --git a/kernel/trace/trace_events_trigger.c b/kernel/trace/trace_events_trigger.c index 46439e3bcec4..b33c3861fbbb 100644 --- a/kernel/trace/trace_events_trigger.c +++ b/kernel/trace/trace_events_trigger.c @@ -1470,8 +1470,10 @@ register_snapshot_trigger(char *glob, struct event_trigger_data *data, ...
fcf67d82b8b878bdd95145382be43927bce07ec6
Analyze and fix the following issue in the Linux kernel code: selftests: net: add missing config for big tcp tests
Problem Details: The big_tcp test-case requires a few kernel knobs currently not specified in the net selftests config, causing the following failure: # selftests: net: big_tcp.sh # Error: Failed to load TC action module. # We have an error talking to the kernel ... # Testing for BIG TCP: # CLI GSO | GW GRO ...
```diff diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config index 19ff75051660..413ab9abcf1b 100644 --- a/tools/testing/selftests/net/config +++ b/tools/testing/selftests/net/config @@ -29,7 +29,9 @@ CONFIG_NF_NAT=m CONFIG_IP6_NF_IPTABLES=m CONFIG_IP_NF_IPTABLES=m CONFIG_IP6_NF_NAT=m...
8c898ec07a2fc1d4694e81097a48e94a3816308d
Analyze and fix the following issue in the Linux kernel code: platform/x86/intel/ifs: Call release_firmware() when handling errors.
Problem Details: Missing release_firmware() due to error handling blocked any future image loading. Fix the return code and release_fiwmare() to release the bad image. Fixes: 25a76dbb36dd ("platform/x86/intel/ifs: Validate image size") Reported-by: Pengfei Xu <pengfei.xu@intel.com> Signed-off-by: Jithu Joseph <jithu....
```diff diff --git a/drivers/platform/x86/intel/ifs/load.c b/drivers/platform/x86/intel/ifs/load.c index a1ee1a74fc3c..2cf3b4a8813f 100644 --- a/drivers/platform/x86/intel/ifs/load.c +++ b/drivers/platform/x86/intel/ifs/load.c @@ -399,7 +399,8 @@ int ifs_load_firmware(struct device *dev) if (fw->size != expected_size...
a692a86efe97fe0aba7cb15f38cbce866c080689
Analyze and fix the following issue in the Linux kernel code: platform/x86/amd/pmf: Fix memory leak in amd_pmf_get_pb_data()
Problem Details: amd_pmf_get_pb_data() will allocate memory for the policy buffer, but does not free it if copy_from_user() fails. This leads to a memory leak. Fixes: 10817f28e533 ("platform/x86/amd/pmf: Add capability to sideload of policy binary") Reviewed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Signed-off-b...
```diff diff --git a/drivers/platform/x86/amd/pmf/tee-if.c b/drivers/platform/x86/amd/pmf/tee-if.c index 502ce93d5cdd..f8c0177afb0d 100644 --- a/drivers/platform/x86/amd/pmf/tee-if.c +++ b/drivers/platform/x86/amd/pmf/tee-if.c @@ -298,8 +298,10 @@ static ssize_t amd_pmf_get_pb_data(struct file *filp, const char __user ...
71ce046327cfd3aef3f93d1c44e091395eb03f8f
Analyze and fix the following issue in the Linux kernel code: drm/ttm: Make sure the mapped tt pages are decrypted when needed
Problem Details: Some drivers require the mapped tt pages to be decrypted. In an ideal world this would have been handled by the dma layer, but the TTM page fault handling would have to be rewritten to able to do that. A side-effect of the TTM page fault handling is using a dma allocation per order (via ttm_pool_alloc...
```diff diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index fd9fd3d15101..0b3f4267130c 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -294,7 +294,13 @@ pgprot_t ttm_io_prot(struct ttm_buffer_object *bo, struct ttm_resource *res, enum ttm_...
fa7178b0f12e55a4f2d4906df3f25d6d4f88d962
Analyze and fix the following issue in the Linux kernel code: selftests/bpf: Add missing line break in test_verifier
Problem Details: There are no break lines in the test log for test_verifier #106 ~ #111 if jit is disabled, add the missing line break at the end of printf() to fix it. Without this patch: [root@linux bpf]# echo 0 > /proc/sys/net/core/bpf_jit_enable [root@linux bpf]# ./test_verifier 106 #106/p inline simple bpf...
```diff diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c index e1a1dfe8d7fa..df04bda1c927 100644 --- a/tools/testing/selftests/bpf/test_verifier.c +++ b/tools/testing/selftests/bpf/test_verifier.c @@ -1527,7 +1527,7 @@ static void do_test_single(struct bpf_test *tes...
517621b7060096e48e42f545fa6646fc00252eac
Analyze and fix the following issue in the Linux kernel code: drm/vmwgfx: Fix possible null pointer derefence with invalid contexts
Problem Details: vmw_context_cotable can return either an error or a null pointer and its usage sometimes went unchecked. Subsequent code would then try to access either a null pointer or an error value. The invalid dereferences were only possible with malformed userspace apps which never properly initialized the rend...
```diff diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index 4c22fe7ec79b..cc3086e649eb 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -447,7 +447,7 @@ static int vmw_resource_context_res_add(struct vmw_private *dev_p...
97aab852c4b9e1b378de48a55f8c9b8d76c36ccc
Analyze and fix the following issue in the Linux kernel code: hwmon: gigabyte_waterforce: Fix locking bug in waterforce_get_status()
Problem Details: Goto 'unlock_and_return' for unlocking before returning on the error path. Fixes: d5939a793693 ("hwmon: Add driver for Gigabyte AORUS Waterforce AIO coolers") Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com> Reviewed-by: Aleksa Savic <savicaleksa83@gmail.com> Link: https://lore.ke...
```diff diff --git a/drivers/hwmon/gigabyte_waterforce.c b/drivers/hwmon/gigabyte_waterforce.c index 85e523775714..8129d7b3ceaf 100644 --- a/drivers/hwmon/gigabyte_waterforce.c +++ b/drivers/hwmon/gigabyte_waterforce.c @@ -146,7 +146,7 @@ static int waterforce_get_status(struct waterforce_data *priv) /* Send command ...
e48f0f4a9bfed8947e4d1123e8b6a15c18ee1708
Analyze and fix the following issue in the Linux kernel code: bpf, docs: Clarify definitions of various instructions
Problem Details: Clarify definitions of several instructions: * BPF_NEG does not support BPF_X * BPF_CALL does not support BPF_JMP32 or BPF_X * BPF_EXIT does not support BPF_X * BPF_JA does not support BPF_X (was implied but not explicitly stated) Also fix a typo in the wide instruction figure where the field is actu...
```diff diff --git a/Documentation/bpf/standardization/instruction-set.rst b/Documentation/bpf/standardization/instruction-set.rst index d17a96c6254f..af43227b6ee4 100644 --- a/Documentation/bpf/standardization/instruction-set.rst +++ b/Documentation/bpf/standardization/instruction-set.rst @@ -174,12 +174,12 @@ and imm...
4d7acc8f48bcf27d0dc068f02e55c77e840b9110
Analyze and fix the following issue in the Linux kernel code: Revert "nouveau: push event block/allowing out of the fence context"
Problem Details: This reverts commit eacabb5462717a52fccbbbba458365a4f5e61f35. This commit causes some regressions in desktop usage, this will reintroduce the original deadlock in DRI_PRIME situations, I've got an idea to fix it by offloading to a workqueue in a different spot, however this code has a race condition w...
```diff diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c index 5057d976fa57..ca762ea55413 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fence.c +++ b/drivers/gpu/drm/nouveau/nouveau_fence.c @@ -62,7 +62,7 @@ nouveau_fence_signal(struct nouveau_fence *fence) if (test_bit(DM...
00aab7dcb2267f2aef59447602f34501efe1a07f
Analyze and fix the following issue in the Linux kernel code: HID: i2c-hid-of: fix NULL-deref on failed power up
Problem Details: A while back the I2C HID implementation was split in an ACPI and OF part, but the new OF driver never initialises the client pointer which is dereferenced on power-up failures. Fixes: b33752c30023 ("HID: i2c-hid: Reorganize so ACPI and OF are separate modules") Cc: stable@vger.kernel.org # 5.12 C...
```diff diff --git a/drivers/hid/i2c-hid/i2c-hid-of.c b/drivers/hid/i2c-hid/i2c-hid-of.c index c4e1fa0273c8..8be4d576da77 100644 --- a/drivers/hid/i2c-hid/i2c-hid-of.c +++ b/drivers/hid/i2c-hid/i2c-hid-of.c @@ -87,6 +87,7 @@ static int i2c_hid_of_probe(struct i2c_client *client) if (!ihid_of) return -ENOMEM; + i...
f3e17b42b28d2b71f54cfcf4530690bcbdaf23ed
Analyze and fix the following issue in the Linux kernel code: drm/vmwgfx: Add SVGA_3D_CMD_DEFINE_GB_SURFACE_V4 to command array.
Problem Details: Without this definition device errors will display the command name as (null) when debug logging is enabled. Signed-off-by: Ian Forbes <ian.forbes@broadcom.com> Signed-off-by: Zack Rusin <zack.rusin@broadcom.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240108211655.13187-1-ian.forbes@bro...
```diff diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index 272141b6164c..4c22fe7ec79b 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -3603,6 +3603,8 @@ static const struct vmw_cmd_entry vmw_cmd_entries[SVGA_3D_CMD_M...
47c5dd66c1840524572dcdd956f4af2bdb6fbdff
Analyze and fix the following issue in the Linux kernel code: nvmet-tcp: fix nvme tcp ida memory leak
Problem Details: The nvmet_tcp_queue_ida should be destroy when the nvmet-tcp module exit. Signed-off-by: Guixin Liu <kanie@linux.alibaba.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
```diff diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c index da0469978d6f..c8655fc5aa5b 100644 --- a/drivers/nvme/target/tcp.c +++ b/drivers/nvme/target/tcp.c @@ -2216,6 +2216,7 @@ static void __exit nvmet_tcp_exit(void) flush_workqueue(nvmet_wq); destroy_workqueue(nvmet_tcp_wq); + ida_destroy...
be57855f505003c5cafff40338d5d0f23b00ba4d
Analyze and fix the following issue in the Linux kernel code: fs/9p: fix dups even in uncached mode
Problem Details: In uncached mode we were still seeing duplicate getattr requests because of aggressive dropping of inodes. Inode "freshness" is guarded by other mechanisms when caches are disabled so this is unnecessary and increases overhead of almost every operation. Signed-off-by: Eric Van Hensbergen <ericvh@kern...
```diff diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index eeac06c2a84c..4236058c7bbd 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -244,21 +244,6 @@ done: return res; } -static int v9fs_drop_inode(struct inode *inode) -{ - struct v9fs_session_info *v9ses; - - v9ses = v9fs_inode2v9ses(inode); - i...
fe1371d0f8c6a9aa4441ddd09ea6d4f31b975a81
Analyze and fix the following issue in the Linux kernel code: fs/9p: switch vfsmount to use v9fs_get_new_inode
Problem Details: In the process of cleaning up inode number allocation, I noticed several functions which didn't use the standard helper allocators. This patch fixes the allocation in the mount entrypoint. Signed-off-by: Eric Van Hensbergen <ericvh@kernel.org>
```diff diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 941f7d0e0bfa..3e009baa1b11 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -110,7 +110,6 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags, struct inode *inode = NULL; struct dentry *root = NULL; struct v9fs_s...
a7a6a01f88e87dec4bf2365571dd2dc7403d52d0
Analyze and fix the following issue in the Linux kernel code: x86/efistub: Give up if memory attribute protocol returns an error
Problem Details: The recently introduced EFI memory attributes protocol should be used if it exists to ensure that the memory allocation created for the kernel permits execution. This is needed for compatibility with tightened requirements related to Windows logo certification for x86 PCs. Currently, we simply strip t...
```diff diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c index 0d510c9a06a4..cb0be88c8131 100644 --- a/drivers/firmware/efi/libstub/x86-stub.c +++ b/drivers/firmware/efi/libstub/x86-stub.c @@ -223,8 +223,8 @@ static void retrieve_apple_device_properties(struct boot_params *...
7bbe8f0071dfa23fcc3b2864ec9f3b1aeb7ab2df
Analyze and fix the following issue in the Linux kernel code: perf tools: Fix calloc() arguments to address error introduced in gcc-14
Problem Details: the definition of calloc is as follows: void *calloc(size_t nmemb, size_t size); number of members is in the first parameter and the size is in the second parameter. Fix error messages on gcc 14 20240102: error: 'calloc' sizes specified with 'sizeof' in the earlier argument and not in the l...
```diff diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 91e6828c38cc..86c910125172 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -4080,8 +4080,8 @@ int cmd_record(int argc, const char **argv) } if (rec->switch_output.num_files) { - rec->switch_output.f...
39af67413997a350fa02a88e15eaacf202c94884
Analyze and fix the following issue in the Linux kernel code: perf build: Make minimal shellcheck version to v0.6.0
Problem Details: The perf build failed due to the shellcheck on my machine (v0.4.6 on Ubuntu 18.04.1 LTS) doesn't support -a/--check-sourced and -S/--severity option. These two options are introduced in shellcheck v0.4.7 and v0.6.0 respectively. So restrict the minimal version of shellcheck to v0.6.0. Fixes: b809fc65...
```diff diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index 27e7c478880f..f8774a9b1377 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -236,6 +236,16 @@ else SHELLCHECK := $(shell which shellcheck 2> /dev/null) endif +# shellcheck is using in tools/perf/tests/Build with ...
1233d1d54b7f66813cfa748aaaeca8c4f9c36c6b
Analyze and fix the following issue in the Linux kernel code: tools headers UAPI: Update tools's copy of drm.h headers to pick DRM_IOCTL_MODE_CLOSEFB
Problem Details: Picking the changes from: 8570c27932e132d2 ("drm/syncobj: Add deadline support for syncobj waits") 9724ed6c1b1212d1 ("drm: Introduce DRM_CLIENT_CAP_CURSOR_PLANE_HOTSPOT") e4d983acffff270c ("drm: introduce DRM_CAP_ATOMIC_ASYNC_PAGE_FLIP") d208d875667e2a29 ("drm: introduce CLOSEFB IOCTL") afa5...
```diff diff --git a/tools/include/uapi/drm/drm.h b/tools/include/uapi/drm/drm.h index de723566c5ae..16122819edfe 100644 --- a/tools/include/uapi/drm/drm.h +++ b/tools/include/uapi/drm/drm.h @@ -713,7 +713,8 @@ struct drm_gem_open { /** * DRM_CAP_ASYNC_PAGE_FLIP * - * If set to 1, the driver supports &DRM_MODE_PAG...
1c2124ec8431f88f5c122be73cb4b784b558d600
Analyze and fix the following issue in the Linux kernel code: perf test shell script: Fix test for python being disabled
Problem Details: "grep -cv" can exit with an error code that causes the "set -e" to abort the script. Switch to using the grep exit code in the if condition to avoid this. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexand...
```diff diff --git a/tools/perf/tests/shell/script.sh b/tools/perf/tests/shell/script.sh index 2973adab445d..fa4d71e2e72a 100755 --- a/tools/perf/tests/shell/script.sh +++ b/tools/perf/tests/shell/script.sh @@ -36,8 +36,7 @@ test_db() echo "DB test" # Check if python script is supported - libpython=$(perf version...
a734c7f969750302b1150ef20468704498f74e64
Analyze and fix the following issue in the Linux kernel code: perf test: Workaround debug output in list test
Problem Details: Write the JSON output to a specific file to avoid debug output breaking it. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Athira Rajeev <atrajeev@li...
```diff diff --git a/tools/perf/tests/shell/list.sh b/tools/perf/tests/shell/list.sh index 22b004f2b23e..8a868ae64560 100755 --- a/tools/perf/tests/shell/list.sh +++ b/tools/perf/tests/shell/list.sh @@ -3,17 +3,32 @@ # SPDX-License-Identifier: GPL-2.0 set -e -err=0 shelldir=$(dirname "$0") # shellcheck source=l...
79bacb6ad73ce63faba3564671c2028e6c3fa1e2
Analyze and fix the following issue in the Linux kernel code: perf list: Add output file option
Problem Details: Add an option to write the 'perf list' output to a specific file. This can avoid issues with debug output being written into the output stream. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin...
```diff diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt index 1b90575ee3c8..3b12595193c9 100644 --- a/tools/perf/Documentation/perf-list.txt +++ b/tools/perf/Documentation/perf-list.txt @@ -47,6 +47,10 @@ Print PMU events and metrics limited to the specific PMU name. --json...
9d95c6be48fc8d3d622658da8fbd6d6787d5c2e7
Analyze and fix the following issue in the Linux kernel code: perf list: Switch error message to pr_err() to respect debug settings (-v)
Problem Details: Using printf() can interrupt 'perf list output', use pr_err() which can respect debug settings and the debug file. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.in...
```diff diff --git a/tools/perf/util/print-events.c b/tools/perf/util/print-events.c index b0fc48be623f..9e47712507cc 100644 --- a/tools/perf/util/print-events.c +++ b/tools/perf/util/print-events.c @@ -66,7 +66,7 @@ void print_tracepoint_events(const struct print_callbacks *print_cb __maybe_unus put_tracing_file(e...
2dac1f089add90a45d93fe8217938281532b86c7
Analyze and fix the following issue in the Linux kernel code: perf test: Fix 'perf script' tests on s390
Problem Details: In linux next repo, test case 'perf script tests' fails on s390. The root case is a command line invocation of 'perf record' with call-graph information. On s390 only DWARF formatted call-graphs are supported and only on software events. Change the command line parameters for s390. Output before: ...
```diff diff --git a/tools/perf/tests/shell/script.sh b/tools/perf/tests/shell/script.sh index 5ae7bd0031a8..2973adab445d 100755 --- a/tools/perf/tests/shell/script.sh +++ b/tools/perf/tests/shell/script.sh @@ -54,7 +54,14 @@ def sample_table(*args): def call_path_table(*args): print(f'call_path_table({args}') _...
ff3d5d04db07e5374758baa7e877fde8d683ebab
Analyze and fix the following issue in the Linux kernel code: drm: bridge: samsung-dsim: Don't use FORCE_STOP_STATE
Problem Details: The FORCE_STOP_STATE bit is unsuitable to force the DSI link into LP-11 mode. It seems the bridge internally queues DSI packets and when the FORCE_STOP_STATE bit is cleared, they are sent in close succession without any useful timing (this also means that the DSI lanes won't go into LP-11 mode). The le...
```diff diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index be5914caa17d..63a1a0c88be4 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -969,10 +969,6 @@ static int samsung_dsim_init_link(struct samsung_dsim *dsi) reg = sams...
1f4a994be2c3d13852fd5c1054f292bd303352cc
Analyze and fix the following issue in the Linux kernel code: riscv: dts: sophgo: separate sg2042 mtime and mtimecmp to fit aclint format
Problem Details: Change the timer layout in the dtb to fit the format that needed by the SBI. Fixes: 967a94a92aaa ("riscv: dts: add initial Sophgo SG2042 SoC device tree") Reviewed-by: Chen Wang <unicorn_wang@outlook.com> Reviewed-by: Guo Ren <guoren@kernel.org> Signed-off-by: Inochi Amaoto <inochiama@outlook.com> Sig...
```diff diff --git a/arch/riscv/boot/dts/sophgo/sg2042.dtsi b/arch/riscv/boot/dts/sophgo/sg2042.dtsi index 93256540d078..ead1cc35d88b 100644 --- a/arch/riscv/boot/dts/sophgo/sg2042.dtsi +++ b/arch/riscv/boot/dts/sophgo/sg2042.dtsi @@ -93,144 +93,160 @@ <&cpu63_intc 3>; }; - clint_mtimer0: timer@70ac00...
2df26223650027602d017368f4e8dc1eff90404e
Analyze and fix the following issue in the Linux kernel code: ARM: dts: marvell: dove-cubox: fix si5351 node names
Problem Details: Correct the device tree to conform with the bindings. The node name and index should be separated with an @. Suggested-by: Rob Herring <robh@kernel.org> Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk> Link: https://lore.kernel.org/r/20231004063712.3348978-3-alvin@pqrs.dk Signed-off-by: Krzysztof K...
```diff diff --git a/arch/arm/boot/dts/marvell/dove-cubox.dts b/arch/arm/boot/dts/marvell/dove-cubox.dts index bfde99486a87..bcaaf8320c45 100644 --- a/arch/arm/boot/dts/marvell/dove-cubox.dts +++ b/arch/arm/boot/dts/marvell/dove-cubox.dts @@ -101,7 +101,7 @@ /* connect xtal input as source of pll0 and pll1 */ sil...
831e0cd4f9ee15a4f02ae10b67e7fdc10eb2b4fc
Analyze and fix the following issue in the Linux kernel code: arm: dts: marvell: Fix maxium->maxim typo in brownstone dts
Problem Details: Fix an obvious spelling error in the PMIC compatible in the MMP2 Brownstone DTS file. Fixes: 58f1193e6210 ("mfd: max8925: Add dts") Cc: <stable@vger.kernel.org> Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr> Reported-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Closes: https://lor...
```diff diff --git a/arch/arm/boot/dts/marvell/mmp2-brownstone.dts b/arch/arm/boot/dts/marvell/mmp2-brownstone.dts index 04f1ae1382e7..bc64348b8218 100644 --- a/arch/arm/boot/dts/marvell/mmp2-brownstone.dts +++ b/arch/arm/boot/dts/marvell/mmp2-brownstone.dts @@ -28,7 +28,7 @@ &twsi1 { status = "okay"; pmic: max892...
cc4b2dd95f0d1eba8c691b36e8f4d1795582f1ff
Analyze and fix the following issue in the Linux kernel code: erofs: fix infinite loop due to a race of filling compressed_bvecs
Problem Details: I encountered a race issue after lengthy (~594647 secs) stress tests on a 64k-page arm64 VM with several 4k-block EROFS images. The timing is like below: z_erofs_try_inplace_io z_erofs_fill_bio_vec cmpxchg(&compressed_bvecs[].page, NULL, ..) ...
```diff diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c index 583c062cd0e4..c1c77166b30f 100644 --- a/fs/erofs/zdata.c +++ b/fs/erofs/zdata.c @@ -563,21 +563,19 @@ static void z_erofs_bind_cache(struct z_erofs_decompress_frontend *fe) __GFP_NOMEMALLOC | __GFP_NORETRY | __GFP_NOWARN; unsigned int i; - if (i_blo...
3a3ef3940798e85121066a859127e72a528dc32a
Analyze and fix the following issue in the Linux kernel code: wifi: iwlwifi: mvm: skip adding debugfs symlink for reconfig
Problem Details: The function to add an interface may be called without a previous removal if the HW is being reconfigured. As such, only add the symlink if the hardware is not being reconfigured due to a HW_RESTART. Fixes: c36235acb34f ("wifi: iwlwifi: mvm: rework debugfs handling") Signed-off-by: Benjamin Berg <benj...
```diff diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 7f13dff04b26..3447d67a8b31 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -1600,7 +1600,8 @@ static int iwl_mvm_mac_...
b743287d7a0007493f5cada34ed2085d475050b4
Analyze and fix the following issue in the Linux kernel code: wifi: cfg80211: fix wiphy delayed work queueing
Problem Details: When a wiphy work is queued with timer, and then again without a delay, it's started immediately but *also* started again after the timer expires. This can lead, for example, to warnings in mac80211's offchannel code as reported by Jouni. Running the same work twice isn't expected, of course. Fix this ...
```diff diff --git a/net/wireless/core.c b/net/wireless/core.c index 409d74c57ca0..3fb1b637352a 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -5,7 +5,7 @@ * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright 2015-2017 ...
353d321f63f7dbfc9ef58498cc732c9fe886a596
Analyze and fix the following issue in the Linux kernel code: wifi: iwlwifi: fix double-free bug
Problem Details: The storage for the TLV PC register data wasn't done like all the other storage in the drv->fw area, which is cleared at the end of deallocation. Therefore, the freeing must also be done differently, explicitly NULL'ing it out after the free, since otherwise there's a nasty double-free bug here if a fi...
```diff diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c index ffe2670720c9..abf8001bdac1 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c @@ -128,6 +128,7 @@ static void iwl_dealloc_ucode(struct iwl_drv ...
4bf2a626dc4bb46f0754d8ac02ec8584ff114ad5
Analyze and fix the following issue in the Linux kernel code: MIPS: lantiq: register smp_ops on non-smp platforms
Problem Details: Lantiq uses a common kernel config for devices with 24Kc and 34Kc cores. The changes made previously to add support for interrupts on all cores work on 24Kc platforms with SMP disabled and 34Kc platforms with SMP enabled. This patch fixes boot issues on Danube (single core 24Kc) with SMP enabled. Fixe...
```diff diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c index a3cf29365858..0c45767eacf6 100644 --- a/arch/mips/lantiq/prom.c +++ b/arch/mips/lantiq/prom.c @@ -108,10 +108,9 @@ void __init prom_init(void) prom_init_cmdline(); #if defined(CONFIG_MIPS_MT_SMP) - if (cpu_has_mipsmt) { - lantiq_smp_ops ...
dd3c33ccbb8f0dc6a256dc55e7607569aea69721
Analyze and fix the following issue in the Linux kernel code: MIPS: BCM63XX: Fix missing prototypes
Problem Details: Most of the symbols for which we do not have a prototype can actually be made static and for the few that cannot, there is already a declaration in a header for it. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
```diff diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c index 01aff80a5967..99f321b6e417 100644 --- a/arch/mips/bcm63xx/boards/board_bcm963xx.c +++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c @@ -702,7 +702,7 @@ static struct ssb_sprom bcm63xx_sprom = { .boardflags_h...
d283ee5662c6bf2f3771a36b926f6988e6dddfc6
Analyze and fix the following issue in the Linux kernel code: drm/i915: Include the PLL name in the debug messages
Problem Details: Make the log easier to parse by including the name of the PLL in the debug prints regarding said PLL. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240123093137.9133-1-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.niku...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c index 7a6f777eb80f..ce97677d44f0 100644 --- a/drivers/gpu/drm/i915/display/intel_dpll_mgr.c +++ b/drivers/gpu/drm/i915/display/intel_dpll_mgr.c @@ -4475,25 +4475,25 @@ verify_single_dpll_state(struct drm_i...
96204e15310c218fd9355bdcacd02fed1d18070e
Analyze and fix the following issue in the Linux kernel code: mm: thp_get_unmapped_area must honour topdown preference
Problem Details: The addition of commit efa7df3e3bb5 ("mm: align larger anonymous mappings on THP boundaries") caused the "virtual_address_range" mm selftest to start failing on arm64. Let's fix that regression. There were 2 visible problems when running the test; 1) it takes much longer to execute, and 2) the test f...
```diff diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 172b85208276..94c958f7ebb5 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -810,7 +810,7 @@ static unsigned long __thp_get_unmapped_area(struct file *filp, { loff_t off_end = off + len; loff_t off_align = round_up(off, size); - unsigned long le...
6c8ce23854b66db94d88e0957e531cb074806c16
Analyze and fix the following issue in the Linux kernel code: wifi: iwlwifi: change link id in time event to s8
Problem Details: Link ID in time event data is -1 when the time event is cleared. Change the type of the link ID in the time event data structure and in the affected function from unsigned to signed. Fixes: 135065837310 ("wifi: iwlwifi: support link_id in SESSION_PROTECTION cmd") Signed-off-by: Miri Korenblit <miriam....
```diff diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index 40627961b834..997f0395b97a 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -121,7 +121,7 @@ struct iwl_mvm_time_event_data { * if the ...
47cde0942959ca11855e1aa5d66209d8625c2a2b
Analyze and fix the following issue in the Linux kernel code: wifi: iwlwifi: make TB reallocation a debug message
Problem Details: There's no need to print this, it's a known issue and the workaround works just fine. Make the reallocation message just a debug message. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Reviewed-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.koren...
```diff diff --git a/drivers/net/wireless/intel/iwlwifi/queue/tx.c b/drivers/net/wireless/intel/iwlwifi/queue/tx.c index ca74b1b63cac..ba0419bc1765 100644 --- a/drivers/net/wireless/intel/iwlwifi/queue/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/queue/tx.c @@ -271,9 +271,10 @@ static int iwl_txq_gen2_set_tb_with_wa(s...
e10322810ce0d0d4a5a319458c4e1e052c6fe9be
Analyze and fix the following issue in the Linux kernel code: wifi: mac80211: use deflink and fix typo in link ID check
Problem Details: This does not change anything effectively, but it is closer to what the code is trying to achieve here. i.e. select the link data if it is an MLD and fall back to using the deflink otherwise. Fixes: 0f99f0878350 ("wifi: mac80211: Print local link address during authentication") Signed-off-by: Benjamin...
```diff diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 99188bd84799..cc9a8eaffa6b 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -7869,10 +7869,10 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, if (err) goto err_clear; - if (req->link_id > 0) + if (req->link_id >= 0) ...
ccb964b4ab1663ce92f389b72c052fc47a0ffdb9
Analyze and fix the following issue in the Linux kernel code: wifi: cfg80211: validate MLO connections better
Problem Details: When going into an MLO connection, validate that the link IDs match what userspace indicated, and that the AP MLD addresses and capabilities are all matching between the links. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Reviewed-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-...
```diff diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index f0c068446c79..a70388ae3a7b 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -4935,6 +4935,30 @@ static inline u8 ieee80211_mle_common_size(const u8 *data) return sizeof(*mle) + common + mle->variable[0]; } +/*...
4da3bc65d218605557696109e42cfeee666d601f
Analyze and fix the following issue in the Linux kernel code: crypto: qat - use kcalloc_node() instead of kzalloc_node()
Problem Details: As noted in the "Deprecated Interfaces, Language Features, Attributes, and Conventions" documentation [1], size calculations (especially multiplication) should not be performed in memory allocator (or similar) function arguments due to the risk of them overflowing. This could lead to values wrapping ar...
```diff diff --git a/drivers/crypto/intel/qat/qat_common/adf_isr.c b/drivers/crypto/intel/qat/qat_common/adf_isr.c index 3557a0d6dea2..a13d9885d60f 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_isr.c +++ b/drivers/crypto/intel/qat/qat_common/adf_isr.c @@ -272,7 +272,7 @@ static int adf_isr_alloc_msix_vectors_dat...
1dc0c1389d6afe4ef3e1d4054fb837b023ebf472
Analyze and fix the following issue in the Linux kernel code: crypto: sun8i-ce - Use kcalloc() instead of kzalloc()
Problem Details: As noted in the "Deprecated Interfaces, Language Features, Attributes, and Conventions" documentation [1], size calculations (especially multiplication) should not be performed in memory allocator (or similar) function arguments due to the risk of them overflowing. This could lead to values wrapping ar...
```diff diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c index d358334e5981..ee2a28c906ed 100644 --- a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c +++ b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-hash.c @@ -362,7 +362,7 @@ int sun8i_ce_hash_run(str...
4d1d6b3f45999b1ddde53831d639a67e2655285f
Analyze and fix the following issue in the Linux kernel code: wifi: cfg80211: add RNR with reporting AP information
Problem Details: If the reporting AP is part of the same MLD, then an entry in the RNR is required in order to discover it again from the BSS generated from the per-STA profile in the Multi-Link Probe Response. We need this because we do not have a direct concept of an MLD AP and just do the lookup from one to the oth...
```diff diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 2249b1a89d1c..01618c4059f4 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -2617,6 +2617,103 @@ cfg80211_tbtt_info_for_mld_ap(const u8 *ie, size_t ielen, u8 mld_id, u8 link_id, return 0; } +static struct element * +cfg80211_gen_repo...
61909cc831750a81c5063ad4bee2ef29f039c987
Analyze and fix the following issue in the Linux kernel code: crypto: hisilicon - Fix smp_processor_id() warnings
Problem Details: Switch to raw_smp_processor_id() to prevent a number of warnings from kernel debugging. We do not care about preemption here, as the CPU number is only used as a poor mans load balancing or device selection. If preemption happens during an encrypt/decrypt operation a small performance hit will occur bu...
```diff diff --git a/drivers/crypto/hisilicon/hpre/hpre_main.c b/drivers/crypto/hisilicon/hpre/hpre_main.c index 3255b2a070c7..d93aa6630a57 100644 --- a/drivers/crypto/hisilicon/hpre/hpre_main.c +++ b/drivers/crypto/hisilicon/hpre/hpre_main.c @@ -440,7 +440,7 @@ MODULE_PARM_DESC(vfs_num, "Number of VFs to enable(1-63),...
f722002441a1395d3e073f9fb5b6f1ab33ca9d66
Analyze and fix the following issue in the Linux kernel code: crypto: arm64/aes-ccm - Revert "Rewrite skcipher walker loop"
Problem Details: This reverts commit 57ead1bf1c54, which updated the CCM code to only rely on walk.nbytes to check for failures returned from the skcipher walk API, mostly for the common good rather than to fix a particular problem in the code. This change introduces a problem of its own: the skcipher walk is started ...
```diff diff --git a/arch/arm64/crypto/aes-ce-ccm-glue.c b/arch/arm64/crypto/aes-ce-ccm-glue.c index 25cd3808ecbe..c4f14415f5f0 100644 --- a/arch/arm64/crypto/aes-ce-ccm-glue.c +++ b/arch/arm64/crypto/aes-ce-ccm-glue.c @@ -161,39 +161,43 @@ static int ccm_encrypt(struct aead_request *req) memcpy(buf, req->iv, AES_BLO...
3274819b3c81c18c01e3c0e0ea726870ec237ac0
Analyze and fix the following issue in the Linux kernel code: crypto: iaa - Remove header table code
Problem Details: The header table and related code is currently unused - it was included and used for canned mode, but canned mode has been removed, so this code can be safely removed as well. This indirectly fixes a bug reported by Dan Carpenter. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Closes: https://...
```diff diff --git a/drivers/crypto/intel/iaa/iaa_crypto.h b/drivers/crypto/intel/iaa/iaa_crypto.h index 014420f7beb0..2524091a5f70 100644 --- a/drivers/crypto/intel/iaa/iaa_crypto.h +++ b/drivers/crypto/intel/iaa/iaa_crypto.h @@ -59,10 +59,8 @@ struct iaa_device_compression_mode { const char *name; struct aecs...
23a22e831ed4e6aa0831312e8cc8b7c60a657f60
Analyze and fix the following issue in the Linux kernel code: crypto: qat - avoid memcpy() overflow warning
Problem Details: The use of array_size() leads gcc to assume the memcpy() can have a larger limit than actually possible, which triggers a string fortification warning: In file included from include/linux/string.h:296, from include/linux/bitmap.h:12, from include/linux/cpumask.h:12, ...
```diff diff --git a/drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.c b/drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.c index 9985683056d5..f752653ccb47 100644 --- a/drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.c +++ b/drivers/crypto/intel/qat/qat_common/adf_gen4_hw_data.c @@ -398,6 +398,9 @@ int a...
e01966e643c97eb8916bbbbbeceb687afb11f345
Analyze and fix the following issue in the Linux kernel code: crypto: virtio - Less function calls in __virtio_crypto_akcipher_do_req() after error detection
Problem Details: The kfree() function was called in up to two cases by the __virtio_crypto_akcipher_do_req() function during error handling even if the passed variable contained a null pointer. This issue was detected by using the Coccinelle software. * Adjust jump targets. * Delete two initialisations which became u...
```diff diff --git a/drivers/crypto/virtio/virtio_crypto_akcipher_algs.c b/drivers/crypto/virtio/virtio_crypto_akcipher_algs.c index 2621ff8a9376..057da5bd8d30 100644 --- a/drivers/crypto/virtio/virtio_crypto_akcipher_algs.c +++ b/drivers/crypto/virtio/virtio_crypto_akcipher_algs.c @@ -224,11 +224,11 @@ static int __vi...
c5a2f74db71a849f3a60bc153d684d6d28a0c665
Analyze and fix the following issue in the Linux kernel code: crypto: caam - fix asynchronous hash
Problem Details: ahash_alg->setkey is updated to ahash_nosetkey in ahash.c so checking setkey() function to determine hmac algorithm is not valid. to fix this added is_hmac variable in structure caam_hash_alg to determine whether the algorithm is hmac or not. Fixes: 2f1f34c1bf7b ("crypto: ahash - optimize performance...
```diff diff --git a/drivers/crypto/caam/caamalg_qi2.c b/drivers/crypto/caam/caamalg_qi2.c index a148ff1f0872..a4f6884416a0 100644 --- a/drivers/crypto/caam/caamalg_qi2.c +++ b/drivers/crypto/caam/caamalg_qi2.c @@ -4545,6 +4545,7 @@ struct caam_hash_alg { struct list_head entry; struct device *dev; int alg_type; ...
e1d54d153fc3e697b841999df7cbad51492def8e
Analyze and fix the following issue in the Linux kernel code: crypto: qat - fix arbiter mapping generation algorithm for QAT 402xx
Problem Details: The commit "crypto: qat - generate dynamically arbiter mappings" introduced a regression on qat_402xx devices. This is reported when the driver probes the device, as indicated by the following error messages: 4xxx 0000:0b:00.0: enabling device (0140 -> 0142) 4xxx 0000:0b:00.0: Generate of the thre...
```diff diff --git a/drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c b/drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c index 479062aa5e6b..94a0ebb03d8c 100644 --- a/drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c +++ b/drivers/crypto/intel/qat/qat_4xxx/adf_4xxx_hw_data.c @@ -463,6 +463,7 @@ void adf_init...
c6e33edb02292059a06ce8fdc4249a5db86a6114
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP2+: fix kernel-doc warnings
Problem Details: Use the correct function name in a comment. Add the return value documentation for one function. These changes prevent these warnings: wd_timer.c:76: warning: expecting prototype for omap2_wdtimer_reset(). Prototype was for omap2_wd_timer_reset() instead wd_timer.c:76: warning: No description found f...
```diff diff --git a/arch/arm/mach-omap2/wd_timer.c b/arch/arm/mach-omap2/wd_timer.c index d4ea56a5f75a..898e7e332981 100644 --- a/arch/arm/mach-omap2/wd_timer.c +++ b/arch/arm/mach-omap2/wd_timer.c @@ -57,7 +57,7 @@ int omap2_wd_timer_disable(struct omap_hwmod *oh) } /** - * omap2_wdtimer_reset - reset and disable...
0e31a8cad726e592524f4ac51858244487657650
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP2+: fix kernel-doc warnings
Problem Details: Use the correct function name in a comment. Use the correct function parameter name in a comment. These changes prevent the following kernel-doc warnings: omap-secure.c:61: warning: expecting prototype for omap_sec_dispatcher(). Prototype was for omap_secure_dispatcher() instead omap-secure.c:191: war...
```diff diff --git a/arch/arm/mach-omap2/omap-secure.c b/arch/arm/mach-omap2/omap-secure.c index 29c7350b06ab..c2e1aecd07cc 100644 --- a/arch/arm/mach-omap2/omap-secure.c +++ b/arch/arm/mach-omap2/omap-secure.c @@ -47,7 +47,7 @@ static void __init omap_optee_init_check(void) } /** - * omap_sec_dispatcher: Routine t...
57adbcd0231237b73d418b3ef944f8904aa77525
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP2+: fix a kernel-doc warning
Problem Details: Use the correct function name in a kernel-doc comment to prevent a warning: powerdomain.c:1171: warning: expecting prototype for pwrdm_save_context(). Prototype was for pwrdm_restore_context() instead Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Tony Lindgren <tony@atomide.com> Cc: linux-o...
```diff diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c index 5e05dd1324e7..2441d96b7144 100644 --- a/arch/arm/mach-omap2/powerdomain.c +++ b/arch/arm/mach-omap2/powerdomain.c @@ -1162,7 +1162,7 @@ static int pwrdm_save_context(struct powerdomain *pwrdm, void *unused) } /** - * pw...
f9dbbac93244675d91bf36ff4efabe8f79e3b946
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP2+: PRM: fix kernel-doc warnings
Problem Details: Use the correct function name in a kernel-doc comment. Add function parameter descriptions in 2 places. These changes prevent the following warnings: prm_common.c:384: warning: expecting prototype for prm_clear_context_lost_flags_old(). Prototype was for prm_clear_context_loss_flags_old() instead prm_...
```diff diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c index fd896f2295a1..3e1e5198bebf 100644 --- a/arch/arm/mach-omap2/prm_common.c +++ b/arch/arm/mach-omap2/prm_common.c @@ -370,7 +370,7 @@ bool prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx) } /** - * prm_clear_context...
4e4afbb3ffa483af1ebb01464b07bde29ec04f59
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP2+: prm44xx: fix a kernel-doc warning
Problem Details: Use the correct function name in a kernel-doc comment to prevent a warning: prm44xx.c:421: warning: expecting prototype for omap44xx_prm_clear_context_lost_flags_old(). Prototype was for omap44xx_prm_clear_context_loss_flags_old() instead Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Paul W...
```diff diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c index 25093c1e5b9a..6c555438dd48 100644 --- a/arch/arm/mach-omap2/prm44xx.c +++ b/arch/arm/mach-omap2/prm44xx.c @@ -407,7 +407,7 @@ static bool omap44xx_prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx) } /** - * omap44xx_prm_...
d33bb8ffc5c1b10d769eb38d0d9a70e57233ca15
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP2+: pmic-cpcap: fix kernel-doc warnings
Problem Details: Use the correct function names in kernel-doc comments. Use "Return[s]:" kernel-doc notation for function return values. These changes prevent the following warnings: pmic-cpcap.c:28: warning: expecting prototype for omap_cpcap_vsel_to_vdc(). Prototype was for omap_cpcap_vsel_to_uv() instead pmic-cpca...
```diff diff --git a/arch/arm/mach-omap2/pmic-cpcap.c b/arch/arm/mach-omap2/pmic-cpcap.c index 668dc84fd31e..4f31e61c0c90 100644 --- a/arch/arm/mach-omap2/pmic-cpcap.c +++ b/arch/arm/mach-omap2/pmic-cpcap.c @@ -18,10 +18,10 @@ #include "vc.h" /** - * omap_cpcap_vsel_to_vdc - convert CPCAP VSEL value to microvolts D...
176a16fa4fd728b17e8065c4b28a49cc70b3b03d
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP2+: hwmod: fix kernel-doc warnings
Problem Details: Use the correct function name in a kernel-doc comment. Use the correct function parameter names in kernel-doc comments. These changes prevent the following warnings: omap_hwmod.c:910: warning: expecting prototype for _init_opt_clk(). Prototype was for _init_opt_clks() instead omap_hwmod.c:2311: warnin...
```diff diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index ba71928c0fcb..111677878d9c 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -900,7 +900,7 @@ static int _init_interface_clks(struct omap_hwmod *oh) } /** - * _init_opt_clk - get a st...
e0174a22875c2edf0f1c6eac977e70e8e2d0b9e9
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP2+: clock: fix a function name in kernel-doc
Problem Details: Use the correct function name in a kernel-doc comment to prevent a kernel-doc warning: clkt2xxx_virt_prcm_set.c:173: warning: expecting prototype for omap2xxx_clkt_vps_check_bootloader_rate(). Prototype was for omap2xxx_clkt_vps_check_bootloader_rates() instead Signed-off-by: Randy Dunlap <rdunlap@in...
```diff diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c index be4557d1fdac..011076a5952f 100644 --- a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c +++ b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c @@ -162,7 +162,7 @@ static int omap2_select_table_rate(struct clk...
e849e1630d600b849d18c1ee41b0494e38304712
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP2+: clockdomain: fix kernel-doc warnings
Problem Details: Use the correct function name in a kernel-doc comment to prevent a kernel-doc warning. Use the correct function parameter name to prevent a kernel-doc warning. clockdomain.c:1003: warning: expecting prototype for clkdm_deny_idle(). Prototype was for clkdm_deny_idle_nolock() instead clockdomain.c:1125:...
```diff diff --git a/arch/arm/mach-omap2/clockdomain.c b/arch/arm/mach-omap2/clockdomain.c index d145e7ac709b..69dc5b839335 100644 --- a/arch/arm/mach-omap2/clockdomain.c +++ b/arch/arm/mach-omap2/clockdomain.c @@ -990,7 +990,7 @@ void clkdm_allow_idle(struct clockdomain *clkdm) } /** - * clkdm_deny_idle - disable ...
884632ab0d093980228e4b63ed842f664d56d81a
Analyze and fix the following issue in the Linux kernel code: ARM: OMAP2+: am33xx-restart: fix function name in kernel-doc
Problem Details: Use the correct name in kernel-doc notation to prevent a kernel-doc warning: am33xx-restart.c:20: warning: expecting prototype for am3xx_restart(). Prototype was for am33xx_restart() instead Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.k...
```diff diff --git a/arch/arm/mach-omap2/am33xx-restart.c b/arch/arm/mach-omap2/am33xx-restart.c index ef2f18a56b65..bf6419d33565 100644 --- a/arch/arm/mach-omap2/am33xx-restart.c +++ b/arch/arm/mach-omap2/am33xx-restart.c @@ -9,7 +9,7 @@ #include "prm.h" /** - * am3xx_restart - trigger a software restart of the So...
48ef9e87b407f89f230f804815af7ac2031ec17a
Analyze and fix the following issue in the Linux kernel code: LoongArch: KVM: Add returns to SIMD stubs
Problem Details: The stubs for kvm_own/lsx()/kvm_own_lasx() when CONFIG_CPU_HAS_LSX or CONFIG_CPU_HAS_LASX is not defined should have a return value since they return an int, so add "return -EINVAL;" to the stubs. Fixes the build error: In file included from ../arch/loongarch/include/asm/kvm_csr.h:12, ...
```diff diff --git a/arch/loongarch/include/asm/kvm_vcpu.h b/arch/loongarch/include/asm/kvm_vcpu.h index e71ceb88f29e..0cb4fdb8a9b5 100644 --- a/arch/loongarch/include/asm/kvm_vcpu.h +++ b/arch/loongarch/include/asm/kvm_vcpu.h @@ -60,7 +60,7 @@ int kvm_own_lsx(struct kvm_vcpu *vcpu); void kvm_save_lsx(struct loongarch...
614f362918c782d1cfa4ee50f96072a95eac264e
Analyze and fix the following issue in the Linux kernel code: LoongArch: KVM: Fix build due to API changes
Problem Details: Commit 8569992d64b8f750e34b7858eac ("KVM: Use gfn instead of hva for mmu_notifier_retry") replaces mmu_invalidate_retry_hva() usage with mmu_invalidate_retry_gfn() for X86, LoongArch also need similar changes to fix build. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
```diff diff --git a/arch/loongarch/kvm/mmu.c b/arch/loongarch/kvm/mmu.c index 915f17527893..50a6acd7ffe4 100644 --- a/arch/loongarch/kvm/mmu.c +++ b/arch/loongarch/kvm/mmu.c @@ -675,7 +675,7 @@ static bool fault_supports_huge_mapping(struct kvm_memory_slot *memslot, * * There are several ways to safely use this he...
5056c596c3d1848021a4eaa76ee42f4c05c50346
Analyze and fix the following issue in the Linux kernel code: LoongArch/smp: Call rcutree_report_cpu_starting() at tlb_init()
Problem Details: Machines which have more than 8 nodes fail to boot SMP after commit a2ccf46333d7b2cf96 ("LoongArch/smp: Call rcutree_report_cpu_starting() earlier"). Because such machines use tlb-based per-cpu base address rather than dmw-based per-cpu base address, resulting per-cpu variables can only be accessed aft...
```diff diff --git a/arch/loongarch/kernel/smp.c b/arch/loongarch/kernel/smp.c index a16e3dbe9f09..2b49d30eb7c0 100644 --- a/arch/loongarch/kernel/smp.c +++ b/arch/loongarch/kernel/smp.c @@ -509,7 +509,6 @@ asmlinkage void start_secondary(void) sync_counter(); cpu = raw_smp_processor_id(); set_my_cpu_offset(per_c...
4ef9ad19e17676b9ef071309bc62020e2373705d
Analyze and fix the following issue in the Linux kernel code: mm: huge_memory: don't force huge page alignment on 32 bit
Problem Details: commit efa7df3e3bb5 ("mm: align larger anonymous mappings on THP boundaries") caused two issues [1] [2] reported on 32 bit system or compat userspace. It doesn't make too much sense to force huge page alignment on 32 bit system due to the constrained virtual address space. [1] https://lore.kernel.org...
```diff diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 5f31e51f2235..172b85208276 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -37,6 +37,7 @@ #include <linux/page_owner.h> #include <linux/sched/sysctl.h> #include <linux/memory-tiers.h> +#include <linux/compat.h> #include <asm/tlb.h> #include <...
67695f18d55924b2013534ef3bdc363bc9e14605
Analyze and fix the following issue in the Linux kernel code: userfaultfd: fix mmap_changing checking in mfill_atomic_hugetlb
Problem Details: In mfill_atomic_hugetlb(), mmap_changing isn't being checked again if we drop mmap_lock and reacquire it. When the lock is not held, mmap_changing could have been incremented. This is also inconsistent with the behavior in mfill_atomic(). Link: https://lkml.kernel.org/r/20240117223729.1444522-1-lokesh...
```diff diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c index 20e3b0d9cf7e..75fcf1f783bc 100644 --- a/mm/userfaultfd.c +++ b/mm/userfaultfd.c @@ -357,6 +357,7 @@ static __always_inline ssize_t mfill_atomic_hugetlb( unsigned long dst_start, unsigned long src_start, unsigned long len,...
d021b442cf312664811783e92b3d5e4548e92a53
Analyze and fix the following issue in the Linux kernel code: selftests/mm: ksm_tests should only MADV_HUGEPAGE valid memory
Problem Details: ksm_tests was previously mmapping a region of memory, aligning the returned pointer to a PMD boundary, then setting MADV_HUGEPAGE, but was setting it past the end of the mmapped area due to not taking the pointer alignment into consideration. Fix this behaviour. Up until commit efa7df3e3bb5 ("mm: ali...
```diff diff --git a/tools/testing/selftests/mm/ksm_tests.c b/tools/testing/selftests/mm/ksm_tests.c index 380b691d3eb9..b748c48908d9 100644 --- a/tools/testing/selftests/mm/ksm_tests.c +++ b/tools/testing/selftests/mm/ksm_tests.c @@ -566,7 +566,7 @@ static int ksm_merge_hugepages_time(int merge_type, int mapping, int ...
6f9dc684cae638dda0570154509884ee78d0f75c
Analyze and fix the following issue in the Linux kernel code: scs: add CONFIG_MMU dependency for vfree_atomic()
Problem Details: The shadow call stack implementation fails to build without CONFIG_MMU: ld.lld: error: undefined symbol: vfree_atomic >>> referenced by scs.c >>> kernel/scs.o:(scs_free) in archive vmlinux.a Link: https://lkml.kernel.org/r/20240122175204.2371009-1-samuel.holland@sifive.com Fixes: ...
```diff diff --git a/arch/Kconfig b/arch/Kconfig index c91917b50873..a5af0edd3eb8 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -673,6 +673,7 @@ config SHADOW_CALL_STACK bool "Shadow Call Stack" depends on ARCH_SUPPORTS_SHADOW_CALL_STACK depends on DYNAMIC_FTRACE_WITH_ARGS || DYNAMIC_FTRACE_WITH_REGS || !FUNCTI...
e4e3df290f65da6cb27dac1309389c916f27db1a
Analyze and fix the following issue in the Linux kernel code: mm/memory: fix folio_set_dirty() vs. folio_mark_dirty() in zap_pte_range()
Problem Details: The correct folio replacement for "set_page_dirty()" is "folio_mark_dirty()", not "folio_set_dirty()". Using the latter won't properly inform the FS using the dirty_folio() callback. This has been found by code inspection, but likely this can result in some real trouble when zapping dirty PTEs that p...
```diff diff --git a/mm/memory.c b/mm/memory.c index 7e1f4849463a..89bcae0b224d 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1464,7 +1464,7 @@ static unsigned long zap_pte_range(struct mmu_gather *tlb, delay_rmap = 0; if (!folio_test_anon(folio)) { if (pte_dirty(ptent)) { - folio_set_dirty(folio); + ...
db44c658f798ad907219f15e033229b8d1aadb93
Analyze and fix the following issue in the Linux kernel code: mm/huge_memory: fix folio_set_dirty() vs. folio_mark_dirty()
Problem Details: The correct folio replacement for "set_page_dirty()" is "folio_mark_dirty()", not "folio_set_dirty()". Using the latter won't properly inform the FS using the dirty_folio() callback. This has been found by code inspection, but likely this can result in some real trouble. Link: https://lkml.kernel.or...
```diff diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 94ef5c02b459..5f31e51f2235 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2437,7 +2437,7 @@ static void __split_huge_pmd_locked(struct vm_area_struct *vma, pmd_t *pmd, page = pmd_page(old_pmd); folio = page_folio(page); if (!folio_test...
52e63d67b5bb423b33d7a262ac7f8bd375a90145
Analyze and fix the following issue in the Linux kernel code: selftests/mm: Update va_high_addr_switch.sh to check CPU for la57 flag
Problem Details: In order for the page table level 5 to be in use, the CPU must have the setting enabled in addition to the CONFIG option. Check for the flag to be set to avoid false test failures on systems that do not have this cpu flag set. The test does a series of mmap calls including three using the MAP_FIXED fl...
```diff diff --git a/tools/testing/selftests/mm/va_high_addr_switch.sh b/tools/testing/selftests/mm/va_high_addr_switch.sh index 45cae7cab27e..a0a75f302904 100755 --- a/tools/testing/selftests/mm/va_high_addr_switch.sh +++ b/tools/testing/selftests/mm/va_high_addr_switch.sh @@ -29,9 +29,15 @@ check_supported_x86_64() ...
91b80cc5b39f00399e8e2d17527cad2c7fa535e2
Analyze and fix the following issue in the Linux kernel code: selftests: mm: fix map_hugetlb failure on 64K page size systems
Problem Details: On systems with 64k page size and 512M huge page sizes, the allocation and test succeeds but errors out at the munmap. As the comment states, munmap will failure if its not HUGEPAGE aligned. This is due to the length of the mapping being 1/2 the size of the hugepage causing the munmap to not be hugep...
```diff diff --git a/tools/testing/selftests/mm/map_hugetlb.c b/tools/testing/selftests/mm/map_hugetlb.c index 193281560b61..86e8f2048a40 100644 --- a/tools/testing/selftests/mm/map_hugetlb.c +++ b/tools/testing/selftests/mm/map_hugetlb.c @@ -15,6 +15,7 @@ #include <unistd.h> #include <sys/mman.h> #include <fcntl.h>...
4434a56ec20925333d6cf4d4093641d063abd35b
Analyze and fix the following issue in the Linux kernel code: stackdepot: make fast paths lock-less again
Problem Details: With the introduction of the pool_rwlock (reader-writer lock), several fast paths end up taking the pool_rwlock as readers. Furthermore, stack_depot_put() unconditionally takes the pool_rwlock as a writer. Despite allowing readers to make forward-progress concurrently, reader-writer locks have inhere...
```diff diff --git a/lib/stackdepot.c b/lib/stackdepot.c index 80a8ca24ccc8..5caa1f566553 100644 --- a/lib/stackdepot.c +++ b/lib/stackdepot.c @@ -22,8 +22,9 @@ #include <linux/list.h> #include <linux/mm.h> #include <linux/mutex.h> -#include <linux/percpu.h> #include <linux/printk.h> +#include <linux/rculist.h> +#i...
c2a292545cd43dcab86d5290ed95b006f1cefe90
Analyze and fix the following issue in the Linux kernel code: stackdepot: add stats counters exported via debugfs
Problem Details: Add a few basic stats counters for stack depot that can be used to derive if stack depot is working as intended. This is a snapshot of the new stats after booting a system with a KASAN-enabled kernel: $ cat /sys/kernel/debug/stackdepot/stats pools: 838 allocations: 29861 frees: 6561 in_use: 2330...
```diff diff --git a/lib/stackdepot.c b/lib/stackdepot.c index a0be5d05c7f0..80a8ca24ccc8 100644 --- a/lib/stackdepot.c +++ b/lib/stackdepot.c @@ -14,6 +14,7 @@ #define pr_fmt(fmt) "stackdepot: " fmt +#include <linux/debugfs.h> #include <linux/gfp.h> #include <linux/jhash.h> #include <linux/kernel.h> @@ -115,6 ...
f6564fce256a3944aa1bc76cb3c40e792d97c1eb
Analyze and fix the following issue in the Linux kernel code: mm, kmsan: fix infinite recursion due to RCU critical section
Problem Details: Alexander Potapenko writes in [1]: "For every memory access in the code instrumented by KMSAN we call kmsan_get_metadata() to obtain the metadata for the memory being accessed. For virtual memory the metadata pointers are stored in the corresponding `struct page`, therefore we need to call virt_to_pag...
```diff diff --git a/arch/x86/include/asm/kmsan.h b/arch/x86/include/asm/kmsan.h index 8fa6ac0e2d76..d91b37f5b4bb 100644 --- a/arch/x86/include/asm/kmsan.h +++ b/arch/x86/include/asm/kmsan.h @@ -64,6 +64,7 @@ static inline bool kmsan_virt_addr_valid(void *addr) { unsigned long x = (unsigned long)addr; unsigned lon...
9319b647902cbd5cc884ac08a8a6d54ce111fc78
Analyze and fix the following issue in the Linux kernel code: mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again
Problem Details: (struct dirty_throttle_control *)->thresh is an unsigned long, but is passed as the u32 divisor argument to div_u64(). On architectures where unsigned long is 64 bytes, the argument will be implicitly truncated. Use div64_u64() instead of div_u64() so that the value used in the "is this a safe divisi...
```diff diff --git a/mm/page-writeback.c b/mm/page-writeback.c index cd4e4ae77c40..02147b61712b 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -1638,7 +1638,7 @@ static inline void wb_dirty_limits(struct dirty_throttle_control *dtc) */ dtc->wb_thresh = __wb_calc_thresh(dtc); dtc->wb_bg_thresh = dt...
63fd327016fdfca6f2fa27eba3496bd079eb8ed3
Analyze and fix the following issue in the Linux kernel code: mm: memcontrol: don't throttle dying tasks on memory.high
Problem Details: While investigating hosts with high cgroup memory pressures, Tejun found culprit zombie tasks that had were holding on to a lot of memory, had SIGKILL pending, but were stuck in memory.high reclaim. In the past, we used to always force-charge allocations from tasks that were exiting in order to accele...
```diff diff --git a/mm/memcontrol.c b/mm/memcontrol.c index e4c8735e7c85..46d8d02114cf 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -2623,8 +2623,9 @@ static unsigned long calculate_high_delay(struct mem_cgroup *memcg, } /* - * Scheduled by try_charge() to be executed from the userland return path - * and...
c4608d1bf7c6536d1a3d233eb21e50678681564e
Analyze and fix the following issue in the Linux kernel code: mm: mmap: map MAP_STACK to VM_NOHUGEPAGE
Problem Details: commit efa7df3e3bb5 ("mm: align larger anonymous mappings on THP boundaries") incured regression for stress-ng pthread benchmark [1]. It is because THP get allocated to pthread's stack area much more possible than before. Pthread's stack area is allocated by mmap without VM_GROWSDOWN or VM_GROWSUP fl...
```diff diff --git a/include/linux/mman.h b/include/linux/mman.h index 40d94411d492..dc7048824be8 100644 --- a/include/linux/mman.h +++ b/include/linux/mman.h @@ -156,6 +156,7 @@ calc_vm_flag_bits(unsigned long flags) return _calc_vm_trans(flags, MAP_GROWSDOWN, VM_GROWSDOWN ) | _calc_vm_trans(flags, MAP_LOC...
4dca82d14174fe53f656a6bc32398db1bdd8f481
Analyze and fix the following issue in the Linux kernel code: uprobes: use pagesize-aligned virtual address when replacing pages
Problem Details: uprobes passes an unaligned page mapping address to folio_add_new_anon_rmap(), which ends up triggering a VM_BUG_ON() we recently extended in commit 372cbd4d5a066 ("mm: non-pmd-mappable, large folios for folio_add_new_anon_rmap()"). Arguably, this is uprobes code doing something wrong; however, for th...
```diff diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index 485bb0389b48..929e98c62965 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -537,7 +537,7 @@ retry: } } - ret = __replace_page(vma, vaddr, old_page, new_page); + ret = __replace_page(vma, vaddr & PAGE_MASK, old_page...
f8ee4361b7be3f0c5bd21ee47561473ddf3aa17b
Analyze and fix the following issue in the Linux kernel code: selftests/mm: mremap_test: fix build warning
Problem Details: Use 2 separate variables of types int and unsigned long long instead of confusing them. This corrects the correct print format for each of them and removes the build warning: warning: format `%d' expects argument of type `int', but argument 2 has type `long long unsigned int' Link: https://lkml.kern...
```diff diff --git a/tools/testing/selftests/mm/mremap_test.c b/tools/testing/selftests/mm/mremap_test.c index 1d4c1589c305..2f8b991f78cb 100644 --- a/tools/testing/selftests/mm/mremap_test.c +++ b/tools/testing/selftests/mm/mremap_test.c @@ -360,7 +360,8 @@ static long long remap_region(struct config c, unsigned int t...
19d3e221807772f8443e565234a6fdc5a2b09d26
Analyze and fix the following issue in the Linux kernel code: fs/hugetlbfs/inode.c: mm/memory-failure.c: fix hugetlbfs hwpoison handling
Problem Details: has_extra_refcount() makes the assumption that the page cache adds a ref count of 1 and subtracts this in the extra_pins case. Commit a08c7193e4f1 (mm/filemap: remove hugetlb special casing in filemap.c) modifies __filemap_add_folio() by calling folio_ref_add(folio, nr); for all cases (including hugte...
```diff diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index ea5b8e57d904..671664fed307 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -340,7 +340,7 @@ static ssize_t hugetlbfs_read_iter(struct kiocb *iocb, struct iov_iter *to) } else { folio_unlock(folio); - if (!folio_test_has_hw...
ab4443fe3ca6298663a55c4a70efc6c3ce913ca6
Analyze and fix the following issue in the Linux kernel code: readahead: avoid multiple marked readahead pages
Problem Details: ra_alloc_folio() marks a page that should trigger next round of async readahead. However it rounds up computed index to the order of page being allocated. This can however lead to multiple consecutive pages being marked with readahead flag. Consider situation with index == 1, mark == 1, order == 0. ...
```diff diff --git a/mm/readahead.c b/mm/readahead.c index 23620c57c122..2648ec4f0494 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -469,7 +469,7 @@ static inline int ra_alloc_folio(struct readahead_control *ractl, pgoff_t index, if (!folio) return -ENOMEM; - mark = round_up(mark, 1UL << order); + mark = r...
e6be8cd5d3cf54ccd0ae66027d6f4697b15f4c3e
Analyze and fix the following issue in the Linux kernel code: bpf: Fix error checks against bpf_get_btf_vmlinux().
Problem Details: In bpf_struct_ops_map_alloc, it needs to check for NULL in the returned pointer of bpf_get_btf_vmlinux() when CONFIG_DEBUG_INFO_BTF is not set. ENOTSUPP is used to preserve the same behavior before the struct_ops kmod support. In the function check_struct_ops_btf_id(), instead of redoing the bpf_get_b...
```diff diff --git a/kernel/bpf/bpf_struct_ops.c b/kernel/bpf/bpf_struct_ops.c index defc052e4622..0decd862dfe0 100644 --- a/kernel/bpf/bpf_struct_ops.c +++ b/kernel/bpf/bpf_struct_ops.c @@ -669,6 +669,8 @@ static struct bpf_map *bpf_struct_ops_map_alloc(union bpf_attr *attr) btf = bpf_get_btf_vmlinux(); if (IS_E...
ff63cc2e95065bea978d2db01f7e7356cca3d021
Analyze and fix the following issue in the Linux kernel code: net: phy: mediatek-ge-soc: sync driver with MediaTek SDK
Problem Details: Sync initialization and calibration routines with MediaTek's reference driver. Improves compliance and resolves link stability issues with CH340 IoT devices connected to MT798x built-in PHYs. Fixes: 98c485eaf509 ("net: phy: add driver for MediaTek SoC built-in GE PHYs") Signed-off-by: Daniel Golle <da...
```diff diff --git a/drivers/net/phy/mediatek-ge-soc.c b/drivers/net/phy/mediatek-ge-soc.c index 8a20d9889f10..0f3a1538a8b8 100644 --- a/drivers/net/phy/mediatek-ge-soc.c +++ b/drivers/net/phy/mediatek-ge-soc.c @@ -489,7 +489,7 @@ static int tx_r50_fill_result(struct phy_device *phydev, u16 tx_r50_cal_val, u16 reg, v...
cae1f1c36661f28c92a1db9113961a9ebd61dbaa
Analyze and fix the following issue in the Linux kernel code: net: ethernet: mtk_eth_soc: set DMA coherent mask to get PPE working
Problem Details: Set DMA coherent mask to 32-bit which makes PPE offloading engine start working on BPi-R4 which got 4 GiB of RAM. Fixes: 2d75891ebc09 ("net: ethernet: mtk_eth_soc: support 36-bit DMA addressing on MT7988") Suggested-by: Elad Yifee <eladwf@users.github.com> Signed-off-by: Daniel Golle <daniel@makrotopi...
```diff diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index a6e91573f8da..de123350bd46 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -4761,7 +4761,10 @@ static int mtk_probe(struct platform_device *p...
3a007b8009b5f8af021021b7a590a6da0dc4c6e0
Analyze and fix the following issue in the Linux kernel code: nfp: flower: fix hardware offload for the transfer layer port
Problem Details: The nfp driver will merge the tp source port and tp destination port into one dword which the offset must be zero to do hardware offload. However, the mangle action for the tp source port and tp destination port is separated for tc ct action. Modify the mangle action for the FLOW_ACT_MANGLE_HDR_TYPE_TC...
```diff diff --git a/drivers/net/ethernet/netronome/nfp/flower/conntrack.c b/drivers/net/ethernet/netronome/nfp/flower/conntrack.c index 726d8cdf0b9c..15180538b80a 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/conntrack.c +++ b/drivers/net/ethernet/netronome/nfp/flower/conntrack.c @@ -1424,10 +1424,30 @@ stati...
cefa98e806fd4e2a5e2047457a11ae5f17b8f621
Analyze and fix the following issue in the Linux kernel code: nfp: flower: add hardware offload check for post ct entry
Problem Details: The nfp offload flow pay will not allocate a mask id when the out port is openvswitch internal port. This is because these flows are used to configure the pre_tun table and are never actually send to the firmware as an add-flow message. When a tc rule which action contains ct and the post ct entry's ou...
```diff diff --git a/drivers/net/ethernet/netronome/nfp/flower/conntrack.c b/drivers/net/ethernet/netronome/nfp/flower/conntrack.c index 2967bab72505..726d8cdf0b9c 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/conntrack.c +++ b/drivers/net/ethernet/netronome/nfp/flower/conntrack.c @@ -1864,10 +1864,30 @@ int n...
79bf0d4a07d4af8fd646d07b70b11abd47c41083
Analyze and fix the following issue in the Linux kernel code: selftest: Fix set of ping_group_range in fcnal-test
Problem Details: ping_group_range sysctl has a compound value which does not go through the various function layers in tact. Create a helper function to bypass the layers and correctly set the value. Signed-off-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20240124214117.24687-3-dsahern@kernel.o...
```diff diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh index 3d69fac6bcc0..f590b0fb740e 100755 --- a/tools/testing/selftests/net/fcnal-test.sh +++ b/tools/testing/selftests/net/fcnal-test.sh @@ -190,6 +190,15 @@ kill_procs() sleep 1 } +set_ping_group() +{ + if [ ...