id
stringlengths
40
40
instruction
stringlengths
68
308
input
stringlengths
17
33.4k
output
stringlengths
100
30k
5c1ab40e76dd873bfbfbe4df98ca3e08de31d30d
Analyze and fix the following issue in the Linux kernel code: bcachefs: Fix kasan splat in members_v1_get()
Problem Details: This fixes an incorrect memcpy() in the recent members_v2 code - a members_v1 member is BCH_MEMBER_V1_BYTES, not sizeof(struct bch_member). Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
```diff diff --git a/fs/bcachefs/sb-members.c b/fs/bcachefs/sb-members.c index 6dd85bb996fe..168b032a82d3 100644 --- a/fs/bcachefs/sb-members.c +++ b/fs/bcachefs/sb-members.c @@ -36,7 +36,8 @@ static struct bch_member members_v1_get(struct bch_sb_field_members_v1 *mi, int { struct bch_member ret, *p = members_v1_get...
a6149f0393699308fb00149be913044977bceb56
Analyze and fix the following issue in the Linux kernel code: drm/sched: Convert drm scheduler to use a work queue rather than kthread
Problem Details: In Xe, the new Intel GPU driver, a choice has made to have a 1 to 1 mapping between a drm_gpu_scheduler and drm_sched_entity. At first this seems a bit odd but let us explain the reasoning below. 1. In Xe the submission order from multiple drm_sched_entity is not guaranteed to be the same completion e...
```diff diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index a7f7afcb2bf0..203dfcea82b1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2279,7 +2279,7 @@ static int amdgpu_device_init_schedulers(struct amd...
a80712b9cc7e57830260ec5e1feb9cdb59e1da2f
Analyze and fix the following issue in the Linux kernel code: rcu/tasks-trace: Handle new PF_IDLE semantics
Problem Details: The commit: cff9b2332ab7 ("kernel/sched: Modify initial boot task idle setup") has changed the semantics of what is to be considered an idle task in such a way that the idle task of an offline CPU may not carry the PF_IDLE flag anymore. However RCU-tasks-trace tests the opposite assertion, still as...
```diff diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index 1087f63b75b9..f54d5782eca0 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -1551,7 +1551,7 @@ static int trc_inspect_reader(struct task_struct *t, void *bhp_in) } else { // The task is not running, so C-language access is safe. nesti...
9715ed501b585d47444865071674c961c0cc0020
Analyze and fix the following issue in the Linux kernel code: rcu/tasks: Handle new PF_IDLE semantics
Problem Details: The commit: cff9b2332ab7 ("kernel/sched: Modify initial boot task idle setup") has changed the semantics of what is to be considered an idle task in such a way that CPU boot code preceding the actual idle loop is excluded from it. This has however introduced new potential RCU-tasks stalls when eith...
```diff diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index 1fa631168594..1087f63b75b9 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -895,10 +895,36 @@ static void rcu_tasks_pregp_step(struct list_head *hop) synchronize_rcu(); } +/* Check for quiescent states since the pregp's synchronize_rcu(...
2be4686d866ad5896f2bb94d82fe892197aea9c7
Analyze and fix the following issue in the Linux kernel code: rcu: Introduce rcu_cpu_online()
Problem Details: Export the RCU point of view as to when a CPU is considered offline (ie: when does RCU consider that a CPU is sufficiently down in the hotplug process to not feature any possible read side). This will be used by RCU-tasks whose vision of an offline CPU should reasonably match the one of RCU core. Fix...
```diff diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h index 0d866eaa4cc8..b531c33e9545 100644 --- a/kernel/rcu/rcu.h +++ b/kernel/rcu/rcu.h @@ -500,6 +500,7 @@ static inline void rcu_expedite_gp(void) { } static inline void rcu_unexpedite_gp(void) { } static inline void rcu_async_hurry(void) { } static inline voi...
85d68222ddc5f4522e456d97d201166acb50f716
Analyze and fix the following issue in the Linux kernel code: rcu: Break rcu_node_0 --> &rq->__lock order
Problem Details: Commit 851a723e45d1 ("sched: Always clear user_cpus_ptr in do_set_cpus_allowed()") added a kfree() call to free any user provided affinity mask, if present. It was changed later to use kfree_rcu() in commit 9a5418bc48ba ("sched/core: Use kfree_rcu() in do_set_cpus_allowed()") to avoid a circular lockin...
```diff diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 700524726079..77e7a0dc722a 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -755,14 +755,19 @@ static int dyntick_save_progress_counter(struct rcu_data *rdp) } /* - * Return true if the specified CPU has passed through a quiescent - * state b...
984a4afdc87a1fc226fd657b1cd8255c13d3fc1a
Analyze and fix the following issue in the Linux kernel code: regmap: prevent noinc writes from clobbering cache
Problem Details: Currently, noinc writes are cached as if they were standard incrementing writes, overwriting unrelated register values in the cache. Instead, we want to cache the last value written to the register, as is done in the accelerated noinc handler (regmap_noinc_readwrite). Fixes: cdf6b11daa77 ("regmap: Add...
```diff diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c index 884cb51c8f67..784eb9ba56fe 100644 --- a/drivers/base/regmap/regmap.c +++ b/drivers/base/regmap/regmap.c @@ -1620,17 +1620,19 @@ static int _regmap_raw_write_impl(struct regmap *map, unsigned int reg, } if (!map->cache_bypass &&...
fd06da776130ec2611c30272a0868f6a54cdf9d2
Analyze and fix the following issue in the Linux kernel code: module: Fix comment typo
Problem Details: Delete duplicated word in comment. Signed-off-by: Zhu Mao <zhumao001@208suo.com> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
```diff diff --git a/kernel/module/stats.c b/kernel/module/stats.c index 6ab2c94d6bc3..3ba0e98b3c91 100644 --- a/kernel/module/stats.c +++ b/kernel/module/stats.c @@ -126,7 +126,7 @@ static LIST_HEAD(dup_failed_modules); * These typically should not happen unless your system is under memory * pressure. * ...
3737df782c740b944912ed93420c57344b1cf864
Analyze and fix the following issue in the Linux kernel code: module/decompress: use vmalloc() for gzip decompression workspace
Problem Details: Use a similar approach as commit a419beac4a07 ("module/decompress: use vmalloc() for zstd decompression workspace") and replace kmalloc() with vmalloc() also for the gzip module decompression workspace. In this case the workspace is represented by struct inflate_workspace that can be fairly large for ...
```diff diff --git a/kernel/module/decompress.c b/kernel/module/decompress.c index 87440f714c0c..4156d59be440 100644 --- a/kernel/module/decompress.c +++ b/kernel/module/decompress.c @@ -100,7 +100,7 @@ static ssize_t module_gzip_decompress(struct load_info *info, s.next_in = buf + gzip_hdr_len; s.avail_in = size -...
2c7ccb3c362bc86aeb3e52d6fbf15f7f480ca961
Analyze and fix the following issue in the Linux kernel code: module: Clarify documentation of module_param_call()
Problem Details: Commit 9bbb9e5a3310 ("param: use ops in struct kernel_param, rather than get and set fns directly") added the comment that module_param_call() was deprecated, during a large scale refactoring to bring sanity to type casting back then. In 2017 following more cleanups, it became useful again as it wraps ...
```diff diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h index 962cd41a2cb5..d4452f93d060 100644 --- a/include/linux/moduleparam.h +++ b/include/linux/moduleparam.h @@ -293,7 +293,11 @@ struct kparam_array = { __param_str_##name, THIS_MODULE, ops, \ VERIFY_OCTAL_PERMISSIONS(perm), level,...
6620999f0d41e4fd6f047727936a964c3399d249
Analyze and fix the following issue in the Linux kernel code: scripts/gdb/vmalloc: disable on no-MMU
Problem Details: vmap_area does not exist on no-MMU, therefore the GDB scripts fail to load: Traceback (most recent call last): File "<...>/vmlinux-gdb.py", line 51, in <module> import linux.vmalloc File "<...>/scripts/gdb/linux/vmalloc.py", line 14, in <module> vmap_area_ptr_type = vmap_area_type.get_type...
```diff diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in index 04c87b570aab..e810e0c27ff1 100644 --- a/scripts/gdb/linux/constants.py.in +++ b/scripts/gdb/linux/constants.py.in @@ -158,3 +158,4 @@ LX_CONFIG(CONFIG_STACKDEPOT) LX_CONFIG(CONFIG_PAGE_OWNER) LX_CONFIG(CONFIG_SLUB_DEBUG) ...
16501630bdeb107141a0139ddc33f92ab5582c6f
Analyze and fix the following issue in the Linux kernel code: scripts/gdb: fix usage of MOD_TEXT not defined when CONFIG_MODULES=n
Problem Details: MOD_TEXT is only defined if CONFIG_MODULES=y which lead to loading failure of the gdb scripts when kernel is built without CONFIG_MODULES=y: Reading symbols from vmlinux... Traceback (most recent call last): File "/foo/vmlinux-gdb.py", line 25, in <module> import linux.constants File "/foo/scr...
```diff diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in index e3517d4ab8ec..04c87b570aab 100644 --- a/scripts/gdb/linux/constants.py.in +++ b/scripts/gdb/linux/constants.py.in @@ -66,10 +66,11 @@ LX_GDBPARSED(IRQD_LEVEL) LX_GDBPARSED(IRQ_HIDDEN) /* linux/module.h */ -LX_GDBPARSED(...
cd24f44050f31d69ed5851b55ef77ea6346aa814
Analyze and fix the following issue in the Linux kernel code: scripts/gdb: add lx_current support for riscv
Problem Details: csr_sscratch CSR holds current task_struct address when hart is in user space. Trap handler on entry spills csr_sscratch into "tp" (x2) register and zeroes out csr_sscratch CSR. Trap handler on exit reloads "tp" with expected user mode value and place current task_struct address again in csr_sscratch...
```diff diff --git a/scripts/gdb/linux/cpus.py b/scripts/gdb/linux/cpus.py index 255dc18cb9da..cba589e5b57d 100644 --- a/scripts/gdb/linux/cpus.py +++ b/scripts/gdb/linux/cpus.py @@ -179,6 +179,21 @@ def get_current_task(cpu): else: raise gdb.GdbError("Sorry, obtaining the current task is not allo...
e3bc0c427f2aee757c249e0f087b0a0e810d66e3
Analyze and fix the following issue in the Linux kernel code: ocfs2: fix a spelling typo in comment
Problem Details: Fix a spelling typo in comment. Link: https://lkml.kernel.org/r/20231025072906.14285-1-chentao@kylinos.cn Signed-off-by: Kunwu Chan <chentao@kylinos.cn> Acked-by: Joseph Qi <joseph.qi@linux.alibaba.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
```diff diff --git a/fs/ocfs2/buffer_head_io.c b/fs/ocfs2/buffer_head_io.c index 6cb919f60011..cdb9b9bdea1f 100644 --- a/fs/ocfs2/buffer_head_io.c +++ b/fs/ocfs2/buffer_head_io.c @@ -345,7 +345,7 @@ read_failure: if (new_bh && bh) { /* If middle bh fails, let previous bh * finish its read and then put...
20e34aa7e08dbac5d7f757fea81fae8df462aa42
Analyze and fix the following issue in the Linux kernel code: proc: fix proc-empty-vm test with vsyscall
Problem Details: * fix embarassing /proc/*/smaps test bug due to a typo in variable name it tested only the first line of the output if vsyscall is enabled: ffffffffff600000-ffffffffff601000 r-xp ... so test passed but tested only VMA location and permissions. * add "KSM" entry, unnoticed because (1) * swap ...
```diff diff --git a/tools/testing/selftests/proc/proc-empty-vm.c b/tools/testing/selftests/proc/proc-empty-vm.c index 171d46a1ac27..1cbdfe8a140e 100644 --- a/tools/testing/selftests/proc/proc-empty-vm.c +++ b/tools/testing/selftests/proc/proc-empty-vm.c @@ -60,7 +60,7 @@ static const char proc_pid_maps_vsyscall_2[] = ...
639931020e1a70308a5c71f4702443429cb6899c
Analyze and fix the following issue in the Linux kernel code: fs/proc/base.c: remove unneeded semicolon
Problem Details: ./fs/proc/base.c:3829:2-3: Unneeded semicolon Link: https://lkml.kernel.org/r/20231026005634.6581-1-yang.lee@linux.alibaba.com Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7057 Acked-by: Ol...
```diff diff --git a/fs/proc/base.c b/fs/proc/base.c index ca4f0ce64df6..b13d3e804deb 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -3826,7 +3826,7 @@ static struct task_struct *first_tid(struct pid *pid, int tid, loff_t f_pos, for_each_thread(task, pos) { if (!nr--) goto found; - }; + } fail: pos = N...
bfca5fb4e97c46503ddfc582335917b0cc228264
Analyze and fix the following issue in the Linux kernel code: SUNRPC: Fix RPC client cleaned up the freed pipefs dentries
Problem Details: RPC client pipefs dentries cleanup is in separated rpc_remove_pipedir() workqueue,which takes care about pipefs superblock locking. In some special scenarios, when kernel frees the pipefs sb of the current client and immediately alloctes a new pipefs sb, rpc_remove_pipedir function would misjudge the e...
```diff diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h index af7358277f1c..e9d4377d03c6 100644 --- a/include/linux/sunrpc/clnt.h +++ b/include/linux/sunrpc/clnt.h @@ -92,6 +92,7 @@ struct rpc_clnt { }; const struct cred *cl_cred; unsigned int cl_max_connect; /* max number of transports no...
5cc7688bae7f0757c39c1d3dfdd827b724061067
Analyze and fix the following issue in the Linux kernel code: NFSv4.1: fix SP4_MACH_CRED protection for pnfs IO
Problem Details: If the client is doing pnfs IO and Kerberos is configured and EXCHANGEID successfully negotiated SP4_MACH_CRED and WRITE/COMMIT are on the list of state protected operations, then we need to make sure to choose the DS's rpc_client structure instead of the MDS's one. Fixes: fb91fb0ee7b2 ("NFS: Move cal...
```diff diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index b4b583be6f5e..b36193edc3ba 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -5647,7 +5647,7 @@ static void nfs4_proc_write_setup(struct nfs_pgio_header *hdr, msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_WRITE]; nfs4_init_sequence(&hdr->ar...
4f3ed837186fc0d2722ba8d2457a594322e9c2ef
Analyze and fix the following issue in the Linux kernel code: SUNRPC: Add an IS_ERR() check back to where it was
Problem Details: This IS_ERR() check was deleted during in a cleanup because, at the time, the rpcb_call_async() function could not return an error pointer. That changed in commit 25cf32ad5dba ("SUNRPC: Handle allocation failure in rpc_new_task()") and now it can return an error pointer. Put the check back. A relate...
```diff diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c index 5988a5c5ff3f..102c3818bc54 100644 --- a/net/sunrpc/rpcb_clnt.c +++ b/net/sunrpc/rpcb_clnt.c @@ -769,6 +769,10 @@ void rpcb_getport_async(struct rpc_task *task) child = rpcb_call_async(rpcb_clnt, map, proc); rpc_release_client(rpcb_clnt); +...
6bd1a77dc72dea0b0d8b6014f231143984d18f6d
Analyze and fix the following issue in the Linux kernel code: NFSv4.1: fix handling NFS4ERR_DELAY when testing for session trunking
Problem Details: Currently when client sends an EXCHANGE_ID for a possible trunked connection, for any error that happened, the trunk will be thrown out. However, an NFS4ERR_DELAY is a transient error that should be retried instead. Fixes: e818bd085baf ("NFSv4.1 remove xprt from xprt_switch if session trunking test fa...
```diff diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 734643b60c48..b4b583be6f5e 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -8959,6 +8959,7 @@ void nfs4_test_session_trunk(struct rpc_clnt *clnt, struct rpc_xprt *xprt, sp4_how = (adata->clp->cl_sp4_flags == 0 ? SP4_NONE : SP4_MACH_CRED); ...
9732336006764e2ee61225387e3c70eae9139035
Analyze and fix the following issue in the Linux kernel code: mm/damon/sysfs: update monitoring target regions for online input commit
Problem Details: When user input is committed online, DAMON sysfs interface is ignoring the user input for the monitoring target regions. Such request is valid and useful for fixed monitoring target regions-based monitoring ops like 'paddr' or 'fvaddr'. Update the region boundaries as user specified, too. Note that ...
```diff diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index 1a231bde18f9..e27846708b5a 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -1150,34 +1150,47 @@ destroy_targets_out: return err; } -static int damon_sysfs_update_target(struct damon_target *target, - struct damon_ctx *ctx, - struct damon_sysf...
19467a950b49432a84bf6dbadbbb17bdf89418b7
Analyze and fix the following issue in the Linux kernel code: mm/damon/sysfs: remove requested targets when online-commit inputs
Problem Details: damon_sysfs_set_targets(), which updates the targets of the context for online commitment, do not remove targets that removed from the corresponding sysfs files. As a result, more than intended targets of the context can exist and hence consume memory and monitoring CPU resource more than expected. F...
```diff diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index 5846970cedce..1a231bde18f9 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -1150,58 +1150,60 @@ destroy_targets_out: return err; } -/* - * Search a target in a context that corresponds to the sysfs target input. - * - * Return: pointer to the t...
6479b29203dedb724f4f4e08e1cc0dcf432c333b
Analyze and fix the following issue in the Linux kernel code: selftests: add a sanity check for zswap
Problem Details: We recently encountered a bug that makes all zswap store attempt fail. Specifically, after: "141fdeececb3 mm/zswap: delay the initialization of zswap" if we build a kernel with zswap disabled by default, then enabled after the swapfile is set up, the zswap tree will not be initialized. As a result,...
```diff diff --git a/tools/testing/selftests/cgroup/test_zswap.c b/tools/testing/selftests/cgroup/test_zswap.c index 49def87a909b..c99d2adaca3f 100644 --- a/tools/testing/selftests/cgroup/test_zswap.c +++ b/tools/testing/selftests/cgroup/test_zswap.c @@ -55,6 +55,11 @@ static int get_zswap_written_back_pages(size_t *va...
9e1b016a0bc97112a18427bce1b6849d28c6eb91
Analyze and fix the following issue in the Linux kernel code: Documentation: maple_tree: fix word spelling error
Problem Details: The "first" is spelled "fist". Link: https://lkml.kernel.org/r/20231023095737.21823-1-yangqixiao@inspur.com Signed-off-by: Tom Yang <yangqixiao@inspur.com> Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
```diff diff --git a/Documentation/core-api/maple_tree.rst b/Documentation/core-api/maple_tree.rst index 45defcf15da7..96f3d5f076b5 100644 --- a/Documentation/core-api/maple_tree.rst +++ b/Documentation/core-api/maple_tree.rst @@ -175,7 +175,7 @@ will return the previous entry which occurs before the entry at index. m...
ca6c2ce1b481996ae5b16e4589d3c0dd61899fa8
Analyze and fix the following issue in the Linux kernel code: mm/vmalloc: fix the unchecked dereference warning in vread_iter()
Problem Details: LKP reported smatch warning as below: =================== smatch warnings: mm/vmalloc.c:3689 vread_iter() error: we previously assumed 'vm' could be null (see line 3667) ...... 06c8994626d1b7 @3667 size = vm ? get_vm_area_size(vm) : va_size(va); ...... 06c8994626d1b7 @3689 else if (!(vm->flags & VM_...
```diff diff --git a/mm/vmalloc.c b/mm/vmalloc.c index a3fedb3ee0db..d12a17fc0c17 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -3809,7 +3809,7 @@ long vread_iter(struct iov_iter *iter, const char *addr, size_t count) if (flags & VMAP_RAM) copied = vmap_ram_vread_iter(iter, addr, n, flags); - else if (!(vm-...
8b793bcda61f6c3ed4f5b2ded7530ef6749580cb
Analyze and fix the following issue in the Linux kernel code: watchdog: move softlockup_panic back to early_param
Problem Details: Setting softlockup_panic from do_sysctl_args() causes it to take effect later in boot. The lockup detector is enabled before SMP is brought online, but do_sysctl_args runs afterwards. If a user wants to set softlockup_panic on boot and have it trigger should a softlockup occur during onlining of the ...
```diff diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index 1c9635dddb70..de484195f49f 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -1576,7 +1576,6 @@ static const struct sysctl_alias sysctl_aliases[] = { {"hung_task_panic", "kernel.hung_task_panic" }, {"numa_zonelist_order", "...
8001f49394e353f035306a45bcf504f06fca6355
Analyze and fix the following issue in the Linux kernel code: proc: sysctl: prevent aliased sysctls from getting passed to init
Problem Details: The code that checks for unknown boot options is unaware of the sysctl alias facility, which maps bootparams to sysctl values. If a user sets an old value that has a valid alias, a message about an invalid parameter will be printed during boot, and the parameter will get passed to init. Fix by checki...
```diff diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index c88854df0b62..1c9635dddb70 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -1592,6 +1592,13 @@ static const char *sysctl_find_alias(char *param) return NULL; } +bool sysctl_is_alias(char *param) +{ + const char *alias = sysc...
e07754e0a1ea2d63fb29574253d1fd7405607343
Analyze and fix the following issue in the Linux kernel code: vhost-vdpa: fix use after free in vhost_vdpa_probe()
Problem Details: The put_device() calls vhost_vdpa_release_dev() which calls ida_simple_remove() and frees "v". So this call to ida_simple_remove() is a use after free and a double free. Fixes: ebe6a354fa7e ("vhost-vdpa: Call ida_simple_remove() when failed") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Me...
```diff diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 30df5c58db73..da7ec77cdaff 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -1582,7 +1582,6 @@ static int vhost_vdpa_probe(struct vdpa_device *vdpa) err: put_device(&v->dev); - ida_simple_remove(&vhost_vdpa_ida, v->minor); retu...
0d82410252ea324f0064e75b9865bb74cccc1dda
Analyze and fix the following issue in the Linux kernel code: vdpa_sim_blk: allocate the buffer zeroed
Problem Details: Deleting and recreating a device can lead to having the same content as the old device, so let's always allocate buffers completely zeroed out. Fixes: abebb16254b3 ("vdpa_sim_blk: support shared backend") Suggested-by: Qing Wang <qinwang@redhat.com> Signed-off-by: Stefano Garzarella <sgarzare@redhat.c...
```diff diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c index b3a3cb165795..b137f3679343 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim_blk.c @@ -437,7 +437,7 @@ static int vdpasim_blk_dev_add(struct vdpa_mgmt_dev *mdev, const char *name, ...
4398776f7a6d532c466f9e41f601c9a291fac5ef
Analyze and fix the following issue in the Linux kernel code: vhost-vdpa: introduce IOTLB_PERSIST backend feature bit
Problem Details: Userspace needs this feature flag to distinguish if vhost-vdpa iotlb in the kernel can be trusted to persist IOTLB mapping across vDPA reset. Without it, userspace has no way to tell apart if it's running on an older kernel, which could silently drop all iotlb mapping across vDPA reset, especially with...
```diff diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index c6bfe9bdde42..acc7c74ba7d6 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -439,6 +439,15 @@ static u64 vhost_vdpa_get_backend_features(const struct vhost_vdpa *v) return ops->get_backend_features(vdpa); } +static bool vhost_vd...
fafb51a67fb883eb2dde352539df939a251851be
Analyze and fix the following issue in the Linux kernel code: virtio-blk: fix implicit overflow on virtio_max_dma_size
Problem Details: The following codes have an implicit conversion from size_t to u32: (u32)max_size = (size_t)virtio_max_dma_size(vdev); This may lead overflow, Ex (size_t)4G -> (u32)0. Once virtio_max_dma_size() has a larger size than U32_MAX, use U32_MAX instead. Signed-off-by: zhenwei pi <pizhenwei@bytedance.com> M...
```diff diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 1fe011676d07..4a4b9bad551e 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -1313,6 +1313,7 @@ static int virtblk_probe(struct virtio_device *vdev) u16 min_io_size; u8 physical_block_exp, alignment_offset; ...
5ff1f51eefb1cd2c20c3f49538a64c09a1cc98be
Analyze and fix the following issue in the Linux kernel code: vhost-scsi: Spelling s/preceeding/preceding/g
Problem Details: Fix a misspelling of "preceding". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Message-Id: <b57b882675809f1f9dacbf42cf6b920b2bea9cba.1695903476.git.geert+renesas@glider.be> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Stefa...
```diff diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index abef0619c790..2d689181bafe 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -1158,7 +1158,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq) /* * Set prot_iter to data_iter and truncate it to * ...
fbe299388c9496f04172ec59bf9bb211f0d2defa
Analyze and fix the following issue in the Linux kernel code: vdpa: Update sysfs ABI documentation
Problem Details: Fix the wrong drivers_autoprobe path name in the document Signed-off-by: Shawn.Shao <shawn.shao@jaguarmicro.com> Message-Id: <20230821011535.1117-1-shawn.shao@jaguarmicro.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
```diff diff --git a/Documentation/ABI/testing/sysfs-bus-vdpa b/Documentation/ABI/testing/sysfs-bus-vdpa index 28a6111202ba..4da53878bff6 100644 --- a/Documentation/ABI/testing/sysfs-bus-vdpa +++ b/Documentation/ABI/testing/sysfs-bus-vdpa @@ -1,4 +1,4 @@ -What: /sys/bus/vdpa/driver_autoprobe +What: /sys/bus/vdpa/driv...
78cbcfd8b13cefe089296d053f222934a53e153d
Analyze and fix the following issue in the Linux kernel code: leds: turris-omnia: Fix brightness setting and trigger activating
Problem Details: I have improperly refactored commits 4d5ed2621c24 ("leds: turris-omnia: Make set_brightness() more efficient") and aaf38273cf76 ("leds: turris-omnia: Support HW controlled mode via private trigger") after Lee requested a change in API semantics of the new functions I introduced in commit 28350bc0...
```diff diff --git a/drivers/leds/leds-turris-omnia.c b/drivers/leds/leds-turris-omnia.c index f27241896970..b443f8c989fa 100644 --- a/drivers/leds/leds-turris-omnia.c +++ b/drivers/leds/leds-turris-omnia.c @@ -60,8 +60,11 @@ struct omnia_leds { static int omnia_cmd_write_u8(const struct i2c_client *client, u8 cmd, u8...
259e33cbb1712a7dd844fc9757661cc47cb0e39b
Analyze and fix the following issue in the Linux kernel code: leds: trigger: netdev: Move size check in set_device_name
Problem Details: GCC 13.2 complains about array subscript 17 is above array bounds of 'char[16]' with IFNAMSIZ set to 16. The warning is correct but this scenario is impossible. set_device_name is called by device_name_store (store sysfs entry) and netdev_trig_activate. device_name_store already check if size is >= o...
```diff diff --git a/drivers/leds/trigger/ledtrig-netdev.c b/drivers/leds/trigger/ledtrig-netdev.c index 58f3352539e8..e358e77e4b38 100644 --- a/drivers/leds/trigger/ledtrig-netdev.c +++ b/drivers/leds/trigger/ledtrig-netdev.c @@ -221,6 +221,9 @@ static ssize_t device_name_show(struct device *dev, static int set_devic...
43962eb5de20d8d19f17556ce2a01b3fa4528ac2
Analyze and fix the following issue in the Linux kernel code: dt-bindings: leds: Last color ID is now 14 (LED_COLOR_ID_LIME)
Problem Details: Increase the limit to match available values in dt-bindings/leds/common.h Fixes: 472d7b9e8141 ("dt-bindings: leds: Expand LED_COLOR_ID definitions") Signed-off-by: Ondrej Jirman <megi@xff.cz> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/202310081421...
```diff diff --git a/Documentation/devicetree/bindings/leds/common.yaml b/Documentation/devicetree/bindings/leds/common.yaml index b42950643b9d..c8d0ba5f2327 100644 --- a/Documentation/devicetree/bindings/leds/common.yaml +++ b/Documentation/devicetree/bindings/leds/common.yaml @@ -43,7 +43,7 @@ properties: LED_...
ff50f53276131a3059e8307d11293af388ed2bcd
Analyze and fix the following issue in the Linux kernel code: leds: trigger: ledtrig-cpu:: Fix 'output may be truncated' issue for 'cpu'
Problem Details: In order to teach the compiler that 'trig->name' will never be truncated, we need to tell it that 'cpu' is not negative. When building with W=1, this fixes the following warnings: drivers/leds/trigger/ledtrig-cpu.c: In function ‘ledtrig_cpu_init’: drivers/leds/trigger/ledtrig-cpu.c:155:56: error:...
```diff diff --git a/drivers/leds/trigger/ledtrig-cpu.c b/drivers/leds/trigger/ledtrig-cpu.c index 8af4f9bb9cde..05848a2fecff 100644 --- a/drivers/leds/trigger/ledtrig-cpu.c +++ b/drivers/leds/trigger/ledtrig-cpu.c @@ -130,7 +130,7 @@ static int ledtrig_prepare_down_cpu(unsigned int cpu) static int __init ledtrig_cp...
76fe464c8e64e71b2e4af11edeef0e5d85eeb6aa
Analyze and fix the following issue in the Linux kernel code: leds: pwm: Don't disable the PWM when the LED should be off
Problem Details: Disabling a PWM (i.e. calling pwm_apply_state with .enabled = false) gives no guarantees what the PWM output does. It might freeze where it currently is, or go in a High-Z state or drive the active or inactive state, it might even continue to toggle. To ensure that the LED gets really disabled, don't ...
```diff diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c index 419b710984ab..2b3bf1353b70 100644 --- a/drivers/leds/leds-pwm.c +++ b/drivers/leds/leds-pwm.c @@ -53,7 +53,7 @@ static int led_pwm_set(struct led_classdev *led_cdev, duty = led_dat->pwmstate.period - duty; led_dat->pwmstate.duty_cycle =...
6de283b96b31b4890e3ee8c86caca2a3a30d1011
Analyze and fix the following issue in the Linux kernel code: leds: turris-omnia: Do not use SMBUS calls
Problem Details: The leds-turris-omnia driver uses three function for I2C access: - i2c_smbus_write_byte_data() and i2c_smbus_read_byte_data(), which cause an emulated SMBUS transfer, - i2c_master_send(), which causes an ordinary I2C transfer. The Turris Omnia MCU LED controller is not semantically SMBUS, it operate...
```diff diff --git a/drivers/leds/leds-turris-omnia.c b/drivers/leds/leds-turris-omnia.c index b8a95a917cfa..b13a547e72c4 100644 --- a/drivers/leds/leds-turris-omnia.c +++ b/drivers/leds/leds-turris-omnia.c @@ -2,7 +2,7 @@ /* * CZ.NIC's Turris Omnia LEDs driver * - * 2020 by Marek Behún <kabel@kernel.org> + * 2020...
a09af0551f5cfa850ca4d39be4395bb3526c8bdf
Analyze and fix the following issue in the Linux kernel code: leds: pca955x: Fix -Wvoid-pointer-to-enum-cast warning
Problem Details: When building with clang 18 I see the following warning: | drivers/leds/leds-pca955x.c:487:15: warning: cast to smaller integer | type 'enum pca955x_type' from 'const void *' [-Wvoid-pointer-to-enum-cast] | 487 | chip_type = (enum pca955x_type)md; This is due to the fa...
```diff diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c index b10e1ef38db0..1d7fa0cd97bf 100644 --- a/drivers/leds/leds-pca955x.c +++ b/drivers/leds/leds-pca955x.c @@ -484,7 +484,7 @@ static int pca955x_probe(struct i2c_client *client) const void *md = device_get_match_data(&client->dev); i...
36af195f7f35c205f716cddf5a8a8954c2e70bff
Analyze and fix the following issue in the Linux kernel code: dt-bindings: mfd: armltd: Move Arm board syscon's to separate schema
Problem Details: The Arm Ltd board bindings are a bit unusual in that they define child nodes for various syscon's. The schemas are also incomplete as they lack constraints on having additional properties and some properties are missing. As the bindings for the different platforms only vary by compatibles, combine them...
```diff diff --git a/Documentation/devicetree/bindings/arm/arm,integrator.yaml b/Documentation/devicetree/bindings/arm/arm,integrator.yaml index 98ff5698ae1f..1bdbd1b7ee38 100644 --- a/Documentation/devicetree/bindings/arm/arm,integrator.yaml +++ b/Documentation/devicetree/bindings/arm/arm,integrator.yaml @@ -40,45 +40...
831d1af85133e1763d41e20414912d9a1058ea72
Analyze and fix the following issue in the Linux kernel code: mfd: arizona-spi: Set pdata.hpdet_channel for ACPI enumerated devs
Problem Details: Commit 9e86b2ad4c11 changed the channel used for HPDET detection (headphones vs lineout detection) from being hardcoded to ARIZONA_ACCDET_MODE_HPL (HP left channel) to it being configurable through arizona_pdata.hpdet_channel the DT/OF parsing added for filling arizona_pdata on devicetree platforms ens...
```diff diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c index 02cf4f3e91d7..de5d894ac04a 100644 --- a/drivers/mfd/arizona-spi.c +++ b/drivers/mfd/arizona-spi.c @@ -159,6 +159,9 @@ static int arizona_spi_acpi_probe(struct arizona *arizona) arizona->pdata.micd_ranges = arizona_micd_aosp_ranges; ari...
7b439aaa62fee474a0d84d67a25f4984467e7b95
Analyze and fix the following issue in the Linux kernel code: mfd: qcom-spmi-pmic: Fix revid implementation
Problem Details: The Qualcomm SPMI PMIC revid implementation is broken in multiple ways. First, it assumes that just because the sibling base device has been registered that means that it is also bound to a driver, which may not be the case (e.g. due to probe deferral or asynchronous probe). This could trigger a NULL-...
```diff diff --git a/drivers/mfd/qcom-spmi-pmic.c b/drivers/mfd/qcom-spmi-pmic.c index 47738f7e492c..8e449cff5cec 100644 --- a/drivers/mfd/qcom-spmi-pmic.c +++ b/drivers/mfd/qcom-spmi-pmic.c @@ -30,6 +30,8 @@ struct qcom_spmi_dev { struct qcom_spmi_pmic pmic; }; +static DEFINE_MUTEX(pmic_spmi_revid_lock); + #defi...
a0fa44c261e448c531f9adb3a5189a3520f3e316
Analyze and fix the following issue in the Linux kernel code: mfd: qcom-spmi-pmic: Fix reference leaks in revid helper
Problem Details: The Qualcomm SPMI PMIC revid implementation is broken in multiple ways. First, it totally ignores struct device_node reference counting and leaks references to the parent bus node as well as each child it iterates over using an open-coded for_each_child_of_node(). Second, it leaks references to each ...
```diff diff --git a/drivers/mfd/qcom-spmi-pmic.c b/drivers/mfd/qcom-spmi-pmic.c index 7e2cd79d17eb..47738f7e492c 100644 --- a/drivers/mfd/qcom-spmi-pmic.c +++ b/drivers/mfd/qcom-spmi-pmic.c @@ -81,7 +81,7 @@ static struct spmi_device *qcom_pmic_get_base_usid(struct device *dev) struct spmi_device *sdev; struct qco...
61fdd1f1d2c183ec256527d16d75e75c3582af82
Analyze and fix the following issue in the Linux kernel code: dt-bindings: mfd: mt6397: Split out compatible for MediaTek MT6366 PMIC
Problem Details: The MT6366 PMIC is mostly, but not fully, compatible with MT6358. It has a different set of regulators. Specifically, it lacks the camera related VCAM* LDOs and VLDO28, but has additional VM18, VMDDR, and VSRAM_CORE LDOs. The PMICs contain a chip ID register that can be used to detect which exact mode...
```diff diff --git a/Documentation/devicetree/bindings/mfd/mt6397.txt b/Documentation/devicetree/bindings/mfd/mt6397.txt index 294693a8906c..10540aa7afa1 100644 --- a/Documentation/devicetree/bindings/mfd/mt6397.txt +++ b/Documentation/devicetree/bindings/mfd/mt6397.txt @@ -22,8 +22,9 @@ compatible: "mediatek,mt6323"...
759c409bc5fc496cbc22cd0b392d3cbb0c0e23eb
Analyze and fix the following issue in the Linux kernel code: mfd: dln2: Fix double put in dln2_probe
Problem Details: The dln2_free() already contains usb_put_dev(). Therefore, the redundant usb_put_dev() before dln2_free() may lead to a double free. Fixes: 96da8f148396 ("mfd: dln2: Fix memory leak in dln2_probe()") Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn> Link: https://lore.kernel.org/r/20230925024134.968...
```diff diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c index c7510434380a..fbbe82c6e75b 100644 --- a/drivers/mfd/dln2.c +++ b/drivers/mfd/dln2.c @@ -826,7 +826,6 @@ out_stop_rx: dln2_stop_rx_urbs(dln2); out_free: - usb_put_dev(dln2->usb_dev); dln2_free(dln2); return ret; ```
89b00c328f5623c428e6aa8563c3a648f8190252
Analyze and fix the following issue in the Linux kernel code: mfd: ab8500: Remove non-existent configuration "#ifdef CONFIG_AB8500_DEBUG"
Problem Details: The CONFIG_AB8500_DEBUG has been deleted in: 3d4d1266597c0 ("mfd: ab8500: Drop debugfs module") The condition "#ifdef CONFIG_AB8500_DEBUG" in: include/linux/mfd/abx500/ab8500.h:502 ...cannot be valid. It is recommended to delete redundant code. Suggested-by: Yanjie Ren <renyanjie01@gmail.com>...
```diff diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index 09fb3c56e7d7..76d326ea8eba 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -499,13 +499,7 @@ static inline int is_ab9540_2p0_or_earlier(struct ab8500 *ab) void ab8500_override_tu...
e7df2d7c83a98d0fc0384d0315c86f3bb89de27d
Analyze and fix the following issue in the Linux kernel code: dt-bindings: mfd: stericsson,db8500-prcmu: Spelling s/Cortex A-/Cortex-A/
Problem Details: Fix a misspelling of "Cortex-A9". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/0789000f012122a7fa27ef709c738101b00cd834.1693407196.git.gee...
```diff diff --git a/Documentation/devicetree/bindings/mfd/stericsson,db8500-prcmu.yaml b/Documentation/devicetree/bindings/mfd/stericsson,db8500-prcmu.yaml index 5e0002f099e4..cb2a42caabb5 100644 --- a/Documentation/devicetree/bindings/mfd/stericsson,db8500-prcmu.yaml +++ b/Documentation/devicetree/bindings/mfd/steric...
7ba7bdef4d14e3722e2842da3b48cbadb73e52d6
Analyze and fix the following issue in the Linux kernel code: mfd: core: Ensure disabled devices are skipped without aborting
Problem Details: The loop searching for a matching device based on its compatible string is aborted when a matching disabled device is found. This abort prevents to add devices as soon as one disabled device is found. Continue searching for an other device instead of aborting on the first disabled one fixes the issue....
```diff diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c index 0ed7c0d7784e..2b85509a90fc 100644 --- a/drivers/mfd/mfd-core.c +++ b/drivers/mfd/mfd-core.c @@ -146,6 +146,7 @@ static int mfd_add_device(struct device *parent, int id, struct platform_device *pdev; struct device_node *np = NULL; struct mf...
3c70342f1f0045dc827bb2f02d814ce31e0e0d05
Analyze and fix the following issue in the Linux kernel code: mfd: core: Un-constify mfd_cell.of_reg
Problem Details: Enable dynamically filling in the whole mfd_cell structure. All other fields already allow that. Fixes: 466a62d7642f ("mfd: core: Make a best effort attempt to match devices with the correct of_nodes") Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Link: https://lore.kernel.org/r/b73fe4bc4bd...
```diff diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h index 47e7a3a61ce6..e8bcad641d8c 100644 --- a/include/linux/mfd/core.h +++ b/include/linux/mfd/core.h @@ -92,7 +92,7 @@ struct mfd_cell { * (above) when matching OF nodes with devices that have identical * compatible strings */ - const u6...
a312e07a65fb598ed239b940434392721385c722
Analyze and fix the following issue in the Linux kernel code: crypto: adiantum - flush destination page before unmapping
Problem Details: Upon additional review, the new fast path in adiantum_finish() is missing the call to flush_dcache_page() that scatterwalk_map_and_copy() was doing. It's apparently debatable whether flush_dcache_page() is actually needed, as per the discussion at https://lore.kernel.org/lkml/YYP1lAq46NWzhOf0@casper.i...
```diff diff --git a/crypto/adiantum.c b/crypto/adiantum.c index 9ff3376f9ed3..60f3883b736a 100644 --- a/crypto/adiantum.c +++ b/crypto/adiantum.c @@ -300,7 +300,8 @@ static int adiantum_finish(struct skcipher_request *req) le128_sub(&rctx->rbuf.bignum, &rctx->rbuf.bignum, &rctx->header_hash); if (dst_nents == 1 &&...
b030c45844cfe0d4c89202cd6c9f4697b3a25a6a
Analyze and fix the following issue in the Linux kernel code: crypto: testmgr - move pkcs1pad(rsa,sha3-*) to correct place
Problem Details: alg_test_descs[] needs to be in sorted order, since it is used for binary search. This fixes the following boot-time warning: testmgr: alg_test_descs entries in wrong order: 'pkcs1pad(rsa,sha512)' before 'pkcs1pad(rsa,sha3-256)' Fixes: ee62afb9d02d ("crypto: rsa-pkcs1pad - Add FIPS 202 SHA-3 sup...
```diff diff --git a/crypto/testmgr.c b/crypto/testmgr.c index 1dc93bf608d4..15c7a3011269 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -5457,23 +5457,23 @@ static const struct alg_test_desc alg_test_descs[] = { .akcipher = __VECS(pkcs1pad_rsa_tv_template) } }, { - .alg = "pkcs1pad(rsa,sha384)", + ...
0da611a8702101814257a7c03f6caf0574c83b98
Analyze and fix the following issue in the Linux kernel code: dma-buf: add dma_fence_timestamp helper
Problem Details: When a fence signals there is a very small race window where the timestamp isn't updated yet. sync_file solves this by busy waiting for the timestamp to appear, but on other ocassions didn't handled this correctly. Provide a dma_fence_timestamp() helper function for this and use it in all appropriate ...
```diff diff --git a/drivers/dma-buf/dma-fence-unwrap.c b/drivers/dma-buf/dma-fence-unwrap.c index c625bb2b5d56..628af51c81af 100644 --- a/drivers/dma-buf/dma-fence-unwrap.c +++ b/drivers/dma-buf/dma-fence-unwrap.c @@ -76,16 +76,11 @@ struct dma_fence *__dma_fence_unwrap_merge(unsigned int num_fences, dma_fence_unwr...
87615e95f6f9ccd36d4a3905a2d87f91967ea9d2
Analyze and fix the following issue in the Linux kernel code: riscv: put interrupt entries into .irqentry.text
Problem Details: The interrupt entries are expected to be in the .irqentry.text section. For example, for kprobes to work properly, exception code cannot be probed; this is ensured by blacklisting addresses in the .irqentry.text section. Fixes: 7db91e57a0ac ("RISC-V: Task implementation") Signed-off-by: Nam Cao <namca...
```diff diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S index 143a2bb3e697..d7dd9030df3f 100644 --- a/arch/riscv/kernel/entry.S +++ b/arch/riscv/kernel/entry.S @@ -14,6 +14,8 @@ #include <asm/asm-offsets.h> #include <asm/errata_list.h> + .section .irqentry.text, "ax" + SYM_CODE_START(handle_exce...
559fe94a449cba5b50a7cffea60474b385598c00
Analyze and fix the following issue in the Linux kernel code: riscv: mm: Update the comment of CONFIG_PAGE_OFFSET
Problem Details: Since the commit 011f09d12052 set sv57 as default for CONFIG_64BIT, the comment of CONFIG_PAGE_OFFSET should be updated too. Fixes: 011f09d12052 ("riscv: mm: Set sv57 on defaultly") Signed-off-by: Song Shuai <suagrfillet@gmail.com> Link: https://lore.kernel.org/r/20230809031023.3575407-1-songshuaishua...
```diff diff --git a/arch/riscv/include/asm/page.h b/arch/riscv/include/asm/page.h index 5488ecc337b6..57e887bfa34c 100644 --- a/arch/riscv/include/asm/page.h +++ b/arch/riscv/include/asm/page.h @@ -33,8 +33,8 @@ #define PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL) #endif /* - * By default, CONFIG_PAGE_OFFSET value corr...
dd16ac404a685cce07e67261a94c6225d90ea7ba
Analyze and fix the following issue in the Linux kernel code: riscv: Using TOOLCHAIN_HAS_ZIHINTPAUSE marco replace zihintpause
Problem Details: Actually it is a part of Conor's commit aae538cd03bc ("riscv: fix detection of toolchain Zihintpause support"). It is looks like a merge issue. Samuel's commit 0b1d60d6dd9e ("riscv: Fix build with CONFIG_CC_OPTIMIZE_FOR_SIZE=y") do not base on Conor's commit and revert to __riscv_zihintpause. So this p...
```diff diff --git a/arch/riscv/include/asm/vdso/processor.h b/arch/riscv/include/asm/vdso/processor.h index 14f5d27783b8..96b65a5396df 100644 --- a/arch/riscv/include/asm/vdso/processor.h +++ b/arch/riscv/include/asm/vdso/processor.h @@ -14,7 +14,7 @@ static inline void cpu_relax(void) __asm__ __volatile__ ("div %0,...
92235d3d8365d24f6cc6701b545e764ef144806a
Analyze and fix the following issue in the Linux kernel code: riscv/mm: Fix the comment for swap pte format
Problem Details: Swap type takes bits 7-11 and swap offset should start from bit 12. Signed-off-by: Xiao Wang <xiao.w.wang@intel.com> Reviewed-by: David Hildenbrand <david@redhat.com> Link: https://lore.kernel.org/r/20230921141652.2657054-1-xiao.w.wang@intel.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
```diff diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index e05e5c8f6526..c8e8867c42f6 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -811,7 +811,7 @@ extern pmd_t pmdp_collapse_flush(struct vm_area_struct *vma, * bit 5: _PAGE_PROT...
8f501be87e45112eff74d0569dcfaab6bce39ef5
Analyze and fix the following issue in the Linux kernel code: RISC-V: clarify the QEMU workaround in ISA parser
Problem Details: Extensions prefixed with "Su" won't corrupt the workaround in many cases. The only exception is when the first multi-letter extension in the ISA string begins with "Su" and is not prefixed with an underscore. For instance, following ISA string can confuse this QEMU workaround. * "rv64imacsuclic" (...
```diff diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index 8ad6da03ee34..9e0d375a40f6 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -204,10 +204,11 @@ static void __init riscv_parse_isa_string(unsigned long *this_hwcap, struct risc switch (*ext) {...
e59e5e2754bf983fc58ad18f99b5eec01f1a0745
Analyze and fix the following issue in the Linux kernel code: riscv: correct pt_level name via pgtable_l5/4_enabled
Problem Details: The pt_level uses CONFIG_PGTABLE_LEVELS to display page table names. But if page mode is downgraded from kernel cmdline or restricted by the hardware in 64BIT, it will give a wrong name. Like, using no4lvl for sv39, ptdump named the 1G-mapping as "PUD" that should be "PGD": 0xffffffd840000000-0xfffff...
```diff diff --git a/arch/riscv/mm/ptdump.c b/arch/riscv/mm/ptdump.c index 20a9f991a6d7..e9090b38f811 100644 --- a/arch/riscv/mm/ptdump.c +++ b/arch/riscv/mm/ptdump.c @@ -384,6 +384,9 @@ static int __init ptdump_init(void) kernel_ptd_info.base_addr = KERN_VIRT_START; + pg_level[1].name = pgtable_l5_enabled ? "P4D...
91562895f8030cb9a0470b1db49de79346a69f91
Analyze and fix the following issue in the Linux kernel code: ext4: properly sync file size update after O_SYNC direct IO
Problem Details: Gao Xiang has reported that on ext4 O_SYNC direct IO does not properly sync file size update and thus if we crash at unfortunate moment, the file can have smaller size although O_SYNC IO has reported successful completion. The problem happens because update of on-disk inode size is handled in ext4_dio_...
```diff diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 747c0378122d..0166bb9ca160 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -306,80 +306,38 @@ out: } static ssize_t ext4_handle_inode_extension(struct inode *inode, loff_t offset, - ssize_t written, size_t count) + ssize_t count) { hand...
ce56d21355cd6f6937aca32f1f44ca749d1e4808
Analyze and fix the following issue in the Linux kernel code: ext4: fix racy may inline data check in dio write
Problem Details: syzbot reports that the following warning from ext4_iomap_begin() triggers as of the commit referenced below: if (WARN_ON_ONCE(ext4_has_inline_data(inode))) return -ERANGE; This occurs during a dio write, which is never expected to encounter an inode with inline data. To enfor...
```diff diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 6830ea3a6c59..747c0378122d 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -569,18 +569,20 @@ static ssize_t ext4_dio_write_iter(struct kiocb *iocb, struct iov_iter *from) return ext4_buffered_write_iter(iocb, from); } + /* + * Prevent inline data f...
7f3e6b840fa8b0889d776639310a5dc672c1e9e1
Analyze and fix the following issue in the Linux kernel code: drm/amd/pm: Fix error of MACO flag setting code
Problem Details: MACO only works if BACO is supported Signed-off-by: Ma Jun <Jun.Ma2@amd.com> Reviewed-by: Kenneth Feng <kenneth.feng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org # 6.1.x
```diff diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c index 997934bc12cf..ef0c30075658 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c @@ -354,12 +354,12 @@ static int ...
9ae587f850a6702428273fcf4a2a9b392349b2a3
Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: Fix the vram base start address
Problem Details: If the size returned by drm buddy allocator is higher than the required size, we take the higher size to calculate the buffer start address. This is required if we couldn't trim the buffer to the requested size. This will fix the display corruption issue on APU's which has limited VRAM size. Link: htt...
```diff diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c index 18f58efc9dc7..08916538a615 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c @@ -77,7 +77,16 @@ static inline bool amdgpu_is_vram_mgr_blocks_c...
5d09c63f11f083707b60c8ea0bb420651c47740f
Analyze and fix the following issue in the Linux kernel code: cxl/hdm: Remove broken error path
Problem Details: Dan reports that cxl_decoder_commit() potentially leaks a hold of cxl_dpa_rwsem. The potential error case is a "should not" happen scenario, turn it into a "can not" happen scenario by adding the error check to cxl_port_setup_targets() where other setting validation occurs. Reported-by: Dan Carpenter ...
```diff diff --git a/drivers/cxl/core/hdm.c b/drivers/cxl/core/hdm.c index af17da8230d5..1cc9be85ba4c 100644 --- a/drivers/cxl/core/hdm.c +++ b/drivers/cxl/core/hdm.c @@ -565,17 +565,11 @@ static void cxld_set_type(struct cxl_decoder *cxld, u32 *ctrl) CXL_HDM_DECODER0_CTRL_HOSTONLY); } -static int cxlsd_set_ta...
69d56b15a7941680aba8c3175b165221ecdf54b6
Analyze and fix the following issue in the Linux kernel code: cxl/hdm: Fix && vs || bug
Problem Details: If "info" is NULL then this code will crash. || was intended instead of &&. Fixes: 8ce520fdea24 ("cxl/hdm: Use stored Component Register mappings to map HDM decoder capability") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Robert Richter <rrichter@amd.com> Link: https://lore.k...
```diff diff --git a/drivers/cxl/core/hdm.c b/drivers/cxl/core/hdm.c index bc8ad4a8afca..af17da8230d5 100644 --- a/drivers/cxl/core/hdm.c +++ b/drivers/cxl/core/hdm.c @@ -146,7 +146,7 @@ struct cxl_hdm *devm_cxl_setup_hdm(struct cxl_port *port, /* Memory devices can configure device HDM using DVSEC range regs. */ ...
5f38ac54e60562323ea4abb1bfb37d043ee23357
Analyze and fix the following issue in the Linux kernel code: drm/amd/pm: fix the high voltage and temperature issue
Problem Details: fix the high voltage and temperature issue after the driver is unloaded on smu 13.0.0, smu 13.0.7 and smu 13.0.10 v2 - fix the code format and make sure it is used on the unload case only. Signed-off-by: Kenneth Feng <kenneth.feng@amd.com> Reviewed-by: Yang Wang <kevinyang.wang@amd.com> Signed-off-by:...
```diff diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index bd940cb9322e..436bd8455573 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -3962,13 +3962,23 @@ int amdgpu_device_init(struct amdgpu_device *adev...
a17f574ab4a2d3dcbd9a49e3c1710fb0cbe8a901
Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: remove amdgpu_mes_self_test in gpu recover
Problem Details: gpu tlb flush is skipped if reset sem is held, it makes mes_self_test fail since it involves add_hw_queue/remove_hw_queue which needs tlb flush functional. Remove mes_self_test in gpu recover sequence. This patch is to fix the recover failure in gfx11. [ 1831.768292] [drm] ring sdma_32769.3.3 was add...
```diff diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index d5f78179b2b6..bd940cb9322e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -5566,10 +5566,6 @@ skip_hw_reset: drm_sched_start(&ring->sched, t...
5575ce213241be6c495e1bd10f70cb59d2817db1
Analyze and fix the following issue in the Linux kernel code: drm/amd/pm: Fix warnings
Problem Details: Fixes warnings: drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu13/smu_v13_0_6_ppt.c:286:45: warning: '%s' directive output may be truncated writing up to 29 bytes into a region of size 23 [-Wformat-truncation=] drivers/gpu/drm/amd/amdgpu/../pm/swsmu/smu13/smu_v13_0_6_ppt.c:286:52: warning: '%s' directive o...
```diff diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c index f42b48b31927..20f66e696f87 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c @@ -270,7 +270,7 @@ static int sm...
d1d4c0b7b65b7fab2bc6f97af9e823b1c42ccdb0
Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: check RAS supported first in ras_reset_error_count
Problem Details: Not all platforms support RAS. Fixes: 73582be11ac8 ("drm/amdgpu: bypass RAS error reset in some conditions") Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Yang Wang <kevinyang.wang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
```diff diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c index 303fbb6a48b6..3af50754800d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c @@ -1229,15 +1229,15 @@ int amdgpu_ras_reset_error_count(struct amdgpu_device *adev, ...
9793c269da6cd339757de6ba5b2c8681b54c99af
Analyze and fix the following issue in the Linux kernel code: dm crypt: account large pages in cc->n_allocated_pages
Problem Details: The commit 5054e778fcd9c ("dm crypt: allocate compound pages if possible") changed dm-crypt to use compound pages to improve performance. Unfortunately, there was an oversight: the allocation of compound pages was not accounted at all. Normal pages are accounted in a percpu counter cc->n_allocated_page...
```diff diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c index 4b5c54d0c51a..37dcc113baa1 100644 --- a/drivers/md/dm-crypt.c +++ b/drivers/md/dm-crypt.c @@ -1692,11 +1692,17 @@ retry: order = min(order, remaining_order); while (order > 0) { + if (unlikely(percpu_counter_read_positive(&cc->n_allocate...
d328c09ee9f15ee5a26431f5aad7c9239fa85e62
Analyze and fix the following issue in the Linux kernel code: smb: client: fix use-after-free bug in cifs_debug_data_proc_show()
Problem Details: Skip SMB sessions that are being teared down (e.g. @ses->ses_status == SES_EXITING) in cifs_debug_data_proc_show() to avoid use-after-free in @ses. This fixes the following GPF when reading from /proc/fs/cifs/DebugData while mounting and umounting [ 816.251274] general protection fault, probably fo...
```diff diff --git a/fs/smb/client/cifs_debug.c b/fs/smb/client/cifs_debug.c index 76922fcc4bc6..9a0ccd87468e 100644 --- a/fs/smb/client/cifs_debug.c +++ b/fs/smb/client/cifs_debug.c @@ -452,6 +452,11 @@ skip_rdma: seq_printf(m, "\n\n\tSessions: "); i = 0; list_for_each_entry(ses, &server->smb_ses_list, smb_se...
e6322fd177c6885a21dd4609dc5e5c973d1a2eb7
Analyze and fix the following issue in the Linux kernel code: smb: client: fix potential deadlock when releasing mids
Problem Details: All release_mid() callers seem to hold a reference of @mid so there is no need to call kref_put(&mid->refcount, __release_mid) under @server->mid_lock spinlock. If they don't, then an use-after-free bug would have occurred anyways. By getting rid of such spinlock also fixes a potential deadlock as sh...
```diff diff --git a/fs/smb/client/cifsproto.h b/fs/smb/client/cifsproto.h index 0c37eefa18a5..890ceddae07e 100644 --- a/fs/smb/client/cifsproto.h +++ b/fs/smb/client/cifsproto.h @@ -81,7 +81,7 @@ extern char *cifs_build_path_to_root(struct smb3_fs_context *ctx, extern char *build_wildcard_path_from_dentry(struct dent...
dc6e08b1a2ae262c23e14f5c259b4ca63a554e4f
Analyze and fix the following issue in the Linux kernel code: ALSA: hda: cs35l41: Fix missing error code in cs35l41_smart_amp()
Problem Details: When firmware status is invalid, assign -EINVAL to ret as ret is '0' at that point and returning success is incorrect when firmware status is invalid. Fixes: a51d8ba03a4f ("ALSA: hda: cs35l41: Check CSPL state after loading firmware") Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.co...
```diff diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c index 98a5123e9f50..b2db8091f0ed 100644 --- a/sound/pci/hda/cs35l41_hda.c +++ b/sound/pci/hda/cs35l41_hda.c @@ -1042,6 +1042,7 @@ static int cs35l41_smart_amp(struct cs35l41_hda *cs35l41) default: dev_err(cs35l41->dev, "Firmware status ...
72bc63f5e23a38b65ff2a201bdc11401d4223fa9
Analyze and fix the following issue in the Linux kernel code: smb3: fix creating FIFOs when mounting with "sfu" mount option
Problem Details: Fixes some xfstests including generic/564 and generic/157 The "sfu" mount option can be useful for creating special files (character and block devices in particular) but could not create FIFOs. It did recognize existing empty files with the "system" attribute flag as FIFOs but this is too general, so ...
```diff diff --git a/fs/smb/client/cifspdu.h b/fs/smb/client/cifspdu.h index e17222fec9d2..a75220db5c1e 100644 --- a/fs/smb/client/cifspdu.h +++ b/fs/smb/client/cifspdu.h @@ -2570,7 +2570,7 @@ typedef struct { struct win_dev { - unsigned char type[8]; /* IntxCHR or IntxBLK */ + unsigned char type[8]; /* IntxCHR or...
4b27d5c420335dad7aea1aa6e799fe1d05c63b7e
Analyze and fix the following issue in the Linux kernel code: ACPI: thermal: Fix acpi_thermal_unregister_thermal_zone() cleanup
Problem Details: The acpi_thermal_unregister_thermal_zone() is paired with acpi_thermal_register_thermal_zone() so it should mirror it. It should clean up all the resources that the register function allocated and leave the stuff that was allocated elsewhere. Unfortunately, it doesn't call thermal_zone_device_disable...
```diff diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index c3143ee5e825..d4fdf8e163a3 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -736,9 +736,9 @@ unregister_tzd: static void acpi_thermal_unregister_thermal_zone(struct acpi_thermal *tz) { + thermal_zone_device_disable(tz->the...
48f866e90f520855b6d941eebe46d75dbfbb9a81
Analyze and fix the following issue in the Linux kernel code: bcachefs: Fix bch2_prt_bitflags()
Problem Details: This fixes an infinite loop when there's a set bit at position >= 32. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
```diff diff --git a/fs/bcachefs/printbuf.c b/fs/bcachefs/printbuf.c index de41f9a14492..5e653eb81d54 100644 --- a/fs/bcachefs/printbuf.c +++ b/fs/bcachefs/printbuf.c @@ -415,11 +415,11 @@ void bch2_prt_bitflags(struct printbuf *out, while (list[nr]) nr++; - while (flags && (bit = __ffs(flags)) < nr) { + while (...
253ba178c8d9065748fa56b39343e6a5a55b0023
Analyze and fix the following issue in the Linux kernel code: bcachefs: Fix ca->oldest_gen allocation
Problem Details: The ca->oldest_gen array needs to be the same size as the bucket_gens array; ca->mi.nbuckets is updated with only state_lock held, not gc_lock, so bch2_gc_gens() could race with device resize and allocate too small of an oldest_gens array. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
```diff diff --git a/fs/bcachefs/btree_gc.c b/fs/bcachefs/btree_gc.c index 8cfd2edd1b08..53d1d1da2640 100644 --- a/fs/bcachefs/btree_gc.c +++ b/fs/bcachefs/btree_gc.c @@ -1954,19 +1954,17 @@ int bch2_gc_gens(struct bch_fs *c) trans = bch2_trans_get(c); for_each_member_device(ca, c, i) { - struct bucket_gens *gen...
a1d97d8417d3c2f2477847541303621c32652976
Analyze and fix the following issue in the Linux kernel code: bcachefs: Fix shrinker names
Problem Details: Shrinkers are now exported to debugfs, so the names can't have slashes in them. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
```diff diff --git a/fs/bcachefs/btree_cache.c b/fs/bcachefs/btree_cache.c index 864d1755c058..0b084fbc478a 100644 --- a/fs/bcachefs/btree_cache.c +++ b/fs/bcachefs/btree_cache.c @@ -476,7 +476,7 @@ int bch2_fs_btree_cache_init(struct bch_fs *c) bc->shrink.count_objects = bch2_btree_cache_count; bc->shrink.scan_obj...
50a38ca1baace3dc66027ad41393917b05318b14
Analyze and fix the following issue in the Linux kernel code: bcachefs: Fix btree_node_type enum
Problem Details: More forwards compatibility fixups: having BKEY_TYPE_btree at the end of the enum conflicts with unnkown btree IDs, this shifts BKEY_TYPE_btree to slot 0 and fixes things up accordingly. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
```diff diff --git a/fs/bcachefs/bkey_methods.c b/fs/bcachefs/bkey_methods.c index d9711a27a71e..baf491878bf1 100644 --- a/fs/bcachefs/bkey_methods.c +++ b/fs/bcachefs/bkey_methods.c @@ -143,15 +143,20 @@ int bch2_bkey_val_invalid(struct bch_fs *c, struct bkey_s_c k, } static u64 bch2_key_types_allowed[] = { -#defi...
0dd092bf1091a114f22136e5776aec21e6e4af2a
Analyze and fix the following issue in the Linux kernel code: bcachefs: Fix lock ordering with snapshot_create_lock
Problem Details: We must not hold btree locks while taking snapshot_create_lock - this fixes a lockdep splat. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
```diff diff --git a/fs/bcachefs/snapshot.c b/fs/bcachefs/snapshot.c index 4982468bfe11..5a62d2e14cb4 100644 --- a/fs/bcachefs/snapshot.c +++ b/fs/bcachefs/snapshot.c @@ -1447,6 +1447,7 @@ int bch2_delete_dead_snapshots(struct bch_fs *c) } } + bch2_trans_unlock(trans); down_write(&c->snapshot_create_lock); ...
57c7e3e4800ad65048a7044b03723cd85d9595af
Analyze and fix the following issue in the Linux kernel code: accel/ivpu: Stop job_done_thread on suspend
Problem Details: Stop job_done thread when going to suspend. Use kthread_park() instead of kthread_stop() to avoid memory allocation and potential failure on resume. Use separate function as thread wake up condition. Use spin lock to assure rx_msg_list is properly protected against concurrent access. This avoid race c...
```diff diff --git a/drivers/accel/ivpu/ivpu_drv.c b/drivers/accel/ivpu/ivpu_drv.c index 064cabef41bb..60277ff6af69 100644 --- a/drivers/accel/ivpu/ivpu_drv.c +++ b/drivers/accel/ivpu/ivpu_drv.c @@ -378,6 +378,7 @@ int ivpu_boot(struct ivpu_device *vdev) enable_irq(vdev->irq); ivpu_hw_irq_enable(vdev); ivpu_ipc_e...
a951104333bd25bb6e5d0f5bee9cbf155b66fac1
Analyze and fix the following issue in the Linux kernel code: dm error: Add support for zoned block devices
Problem Details: dm-error is used in several test cases in the xfstests test suite to check the handling of IO errors in file systems. However, with several file systems getting native support for zoned block devices (e.g. btrfs and f2fs), dm-error's lack of zoned block device support creates problems as the file syste...
```diff diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 37b48f63ae6a..198d38b53322 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -844,7 +844,8 @@ static bool dm_table_supports_dax(struct dm_table *t, if (!ti->type->direct_access) return false; - if (!ti->type->iterate_devi...
70bbeb29fab09d6ea6cfe64109db60a97d84d739
Analyze and fix the following issue in the Linux kernel code: dm delay: for short delays, use kthread instead of timers and wq
Problem Details: DM delay's current design of using timers and wq to realize the delays is insufficient for delays below ~50ms. This commit enhances the design to use a kthread to flush the expired delays, trading some CPU time (in some cases) for better delay accuracy and delays closer to what the user requested for ...
```diff diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c index 7433525e5985..efd510984e25 100644 --- a/drivers/md/dm-delay.c +++ b/drivers/md/dm-delay.c @@ -13,6 +13,7 @@ #include <linux/blkdev.h> #include <linux/bio.h> #include <linux/slab.h> +#include <linux/kthread.h> #include <linux/device-mapper.h>...
a06eb9be49a66e16e0c7819c630c1267c25b36dc
Analyze and fix the following issue in the Linux kernel code: accel/ivpu: Assure device is off if power up sequence fail
Problem Details: We should not leave device half enabled if there is failure somewhere it power up sequence. Fix device init and resume paths. Reviewed-by: Karol Wachowski <karol.wachowski@linux.intel.com> Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Reviewed-by: Jeffrey Hugo <quic_jhugo@quicin...
```diff diff --git a/drivers/accel/ivpu/ivpu_drv.c b/drivers/accel/ivpu/ivpu_drv.c index 39bac45d88b5..064cabef41bb 100644 --- a/drivers/accel/ivpu/ivpu_drv.c +++ b/drivers/accel/ivpu/ivpu_drv.c @@ -543,7 +543,7 @@ static int ivpu_dev_init(struct ivpu_device *vdev) /* Power up early so the rest of init code can acces...
bfc87f90614523612ae7e94d06798e82bc78ade6
Analyze and fix the following issue in the Linux kernel code: accel/ivpu/40xx: Allow to change profiling frequency
Problem Details: Profiling freq is a debug firmware feature. It switches default clock to higher resolution for fine-grained and more accurate firmware task profiling. We already configure it during boot up of VPU4. Add debugfs knob and helpers per HW generation that allow to change it. For vpu37xx the implementation ...
```diff diff --git a/drivers/accel/ivpu/ivpu_debugfs.c b/drivers/accel/ivpu/ivpu_debugfs.c index 6e0d56823024..19035230563d 100644 --- a/drivers/accel/ivpu/ivpu_debugfs.c +++ b/drivers/accel/ivpu/ivpu_debugfs.c @@ -14,6 +14,7 @@ #include "ivpu_fw.h" #include "ivpu_fw_log.h" #include "ivpu_gem.h" +#include "ivpu_hw.h...
ed2232d49187cebc007ecf4e6374069b11ab3219
Analyze and fix the following issue in the Linux kernel code: ASoC: amd: acp: fix for i2s mode register field update
Problem Details: I2S mode register field will be set to 1 when tdm mode is enabled. Update the I2S mode field based on tdm_mode flag check. This will fix below smatch checker warning. sound/soc/amd/acp/acp-i2s.c:59 acp_set_i2s_clk() warn: odd binop '0x0 & 0x2' Fixes: 40f74d5f09d7 ("ASoC: amd: acp: refactor acp i2s ...
```diff diff --git a/sound/soc/amd/acp/acp-i2s.c b/sound/soc/amd/acp/acp-i2s.c index 1185e5aac523..60cbc881be6e 100644 --- a/sound/soc/amd/acp/acp-i2s.c +++ b/sound/soc/amd/acp/acp-i2s.c @@ -26,7 +26,6 @@ #define DRV_NAME "acp_i2s_playcap" #define I2S_MASTER_MODE_ENABLE 1 -#define I2S_MODE_ENABLE 0 #define LRCL...
2ef422f063b74adcc4a4a9004b0a87bb55e0a836
Analyze and fix the following issue in the Linux kernel code: IB/mlx5: Fix init stage error handling to avoid double free of same QP and UAF
Problem Details: In the unlikely event that workqueue allocation fails and returns NULL in mlx5_mkey_cache_init(), delete the call to mlx5r_umr_resource_cleanup() (which frees the QP) in mlx5_ib_stage_post_ib_reg_umr_init(). This will avoid attempted double free of the same QP when __mlx5_ib_add() does its cleanup. R...
```diff diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index e39e4b06712a..650a15b6cfbc 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -4092,10 +4092,8 @@ static int mlx5_ib_stage_post_ib_reg_umr_init(struct mlx5_ib_dev *dev) return ret; ...
a53e215f90079f617360439b1b6284820731e34c
Analyze and fix the following issue in the Linux kernel code: RDMA/mlx5: Fix mkey cache WQ flush
Problem Details: The cited patch tries to ensure no pending works on the mkey cache workqueue by disabling adding new works and call flush_workqueue(). But this workqueue also has delayed works which might still be pending the delay time to be queued. Add cancel_delayed_work() for the delayed works which waits to be q...
```diff diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index 1d6c54a53df6..18e459b55746 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -1000,11 +1000,13 @@ void mlx5_mkey_cache_cleanup(struct mlx5_ib_dev *dev) return; mutex_lock(&dev->cache.r...
9d7c8c066916f231ca0ed4e4fce6c4b58ca3e451
Analyze and fix the following issue in the Linux kernel code: Revert "drm/omapdrm: Annotate dma-fence critical section in commit path"
Problem Details: This reverts commit 250aa22920cd5d956a5d3e9c6a43d671c2bae217. The DMA-fence annotations cause a lockdep warning (see below). As per https://patchwork.freedesktop.org/patch/462170/ it sounds like the annotations don't work correctly. ====================================================== WARNING: poss...
```diff diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c index b2835b3ea6f5..6598c9c08ba1 100644 --- a/drivers/gpu/drm/omapdrm/omap_drv.c +++ b/drivers/gpu/drm/omapdrm/omap_drv.c @@ -69,7 +69,6 @@ static void omap_atomic_commit_tail(struct drm_atomic_state *old_state) { struct drm...
ca34d816558c3e4c3f8fe037b5a6b16c944693de
Analyze and fix the following issue in the Linux kernel code: Revert "drm/tidss: Annotate dma-fence critical section in commit path"
Problem Details: This reverts commit 4d56a4f08391857ba93465de489707b66adad114. The DMA-fence annotations cause a lockdep warning (see below). As per https://patchwork.freedesktop.org/patch/462170/ it sounds like the annotations don't work correctly. ====================================================== WARNING: poss...
```diff diff --git a/drivers/gpu/drm/tidss/tidss_kms.c b/drivers/gpu/drm/tidss/tidss_kms.c index c979ad1af236..d096d8d2bc8f 100644 --- a/drivers/gpu/drm/tidss/tidss_kms.c +++ b/drivers/gpu/drm/tidss/tidss_kms.c @@ -4,8 +4,6 @@ * Author: Tomi Valkeinen <tomi.valkeinen@ti.com> */ -#include <linux/dma-fence.h> - #i...
7b5c3086d1f85448a2a81947b685119c6c9894c8
Analyze and fix the following issue in the Linux kernel code: integrity: fix indentation of config attributes
Problem Details: Fix indentation of config attributes. Attributes are generally indented with a leading tab(\t) character. Signed-off-by: Prasad Pandit <pjp@fedoraproject.org> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
```diff diff --git a/security/integrity/Kconfig b/security/integrity/Kconfig index 232191ee09e3..1e151e6a5d3f 100644 --- a/security/integrity/Kconfig +++ b/security/integrity/Kconfig @@ -34,10 +34,10 @@ config INTEGRITY_ASYMMETRIC_KEYS bool "Enable asymmetric keys support" depends on INTEGRITY_SIGNATURE default n...
e044374a8a0a99e46f4e6d6751d3042b6d9cc12e
Analyze and fix the following issue in the Linux kernel code: ima: annotate iint mutex to avoid lockdep false positive warnings
Problem Details: It is not clear that IMA should be nested at all, but as long is it measures files both on overlayfs and on underlying fs, we need to annotate the iint mutex to avoid lockdep false positives related to IMA + overlayfs, same as overlayfs annotates the inode mutex. Reported-and-tested-by: syzbot+b42fe62...
```diff diff --git a/security/integrity/iint.c b/security/integrity/iint.c index a462df827de2..27ea19fb1f54 100644 --- a/security/integrity/iint.c +++ b/security/integrity/iint.c @@ -66,9 +66,32 @@ struct integrity_iint_cache *integrity_iint_find(struct inode *inode) return iint; } -static void iint_free(struct in...
1a0ac8bd7a4fa5b2f4ef14c3b1e9d6e5a5faae06
Analyze and fix the following issue in the Linux kernel code: erofs: fix erofs_insert_workgroup() lockref usage
Problem Details: As Linus pointed out [1], lockref_put_return() is fundamentally designed to be something that can fail. It behaves as a fastpath-only thing, and the failure case needs to be handled anyway. Actually, since the new pcluster was just allocated without being populated, it won't be accessed by others unt...
```diff diff --git a/fs/erofs/utils.c b/fs/erofs/utils.c index cc6fb9e98899..4256a85719a1 100644 --- a/fs/erofs/utils.c +++ b/fs/erofs/utils.c @@ -77,12 +77,7 @@ struct erofs_workgroup *erofs_insert_workgroup(struct super_block *sb, struct erofs_sb_info *const sbi = EROFS_SB(sb); struct erofs_workgroup *pre; - /*...
949113d34fb82a5dc6f5dd3ad9168001b441792b
Analyze and fix the following issue in the Linux kernel code: drm/i915/mtl: Apply notify_guc to all GTs
Problem Details: Handle platforms with multiple GTs by iterate over all GTs. Add a Fixes commit so this gets propagated for MTL support. Fixes: 213c43676beb ("drm/i915/mtl: Remove the 'force_probe' requirement for Meteor Lake") Suggested-by: John Harrison <john.c.harrison@intel.com> Cc: Jani Nikula <jani.nikula@linux....
```diff diff --git a/drivers/gpu/drm/i915/i915_debugfs_params.c b/drivers/gpu/drm/i915/i915_debugfs_params.c index 614bde321589..8bca02025e09 100644 --- a/drivers/gpu/drm/i915/i915_debugfs_params.c +++ b/drivers/gpu/drm/i915/i915_debugfs_params.c @@ -38,10 +38,13 @@ static int i915_param_int_open(struct inode *inode, s...
3b9bbd79627043a9fa9dd5b01bb29882663976e0
Analyze and fix the following issue in the Linux kernel code: drm/i915/hdcp: Add more conditions to enable hdcp
Problem Details: When we dock a monitor we end up with a enable and disable connector cycle but if hdcp content is running we get the userspace in enabled state and driver maintaining a undesired state which causes the content to stop playing and we only enable hdcp if the userspace state in desired. This patch fixes t...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c index 44c0a93f3af8..39b3f7c0c77c 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -2409,9 +2409,19 @@ void intel_hdcp_enable(struct intel_atomic_state *stat...
56d9854bd7c6b29a65fbb4175e01196166ed61de
Analyze and fix the following issue in the Linux kernel code: wifi: ath12k: drop NULL pointer check in ath12k_update_per_peer_tx_stats()
Problem Details: Since 'user_stats' is a fixed-size array of 'struct htt_ppdu_user_stats' in 'struct htt_ppdu_stats', any of its member can't be NULL and so relevant check may be dropped. Signed-off-by: Ma Ke <make_ruc2021@163.com> Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Link: https://lore.kernel.org/r/2023...
```diff diff --git a/drivers/net/wireless/ath/ath12k/dp_rx.c b/drivers/net/wireless/ath/ath12k/dp_rx.c index 3543fadac4a5..9f831e3971f9 100644 --- a/drivers/net/wireless/ath/ath12k/dp_rx.c +++ b/drivers/net/wireless/ath/ath12k/dp_rx.c @@ -1339,9 +1339,6 @@ ath12k_update_per_peer_tx_stats(struct ath12k *ar, u8 tid = H...
7e6bd6409b66f57741dd69e0ee20f4ed4434b67c
Analyze and fix the following issue in the Linux kernel code: nouveau/disp: fix post-gsp build on 32-bit arm.
Problem Details: This converts a bunch of divides into the proper macros. Reviewed-by: Danilo Krummrich <dakr@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231030012814.1208972-2-airlied@gmail.com
```diff diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c index d2be40337b92..7840b6428afb 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/disp.c +++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c @@ -1644,7 +1644,7 @@ nv50_sor_dp_watermark_sst(struct nouveau_encoder *outp, // 0 ...
b76827a3a930fe8737ca64854e17c113687e94a9
Analyze and fix the following issue in the Linux kernel code: nouveau: fix r535 build on 32-bit arm.
Problem Details: This needs the proper division macros. Reviewed-by: Danilo Krummrich <dakr@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231030012814.1208972-1-airlied@gmail.com
```diff diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/r535.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/r535.c index 14a67cf96204..0f9b8087d5e6 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/r535.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/r535.c @@ -267,7 +267,7 @@ r535_chan_id_get_locked(struct nv...
ee526b88caaa4b4182144bf2576af2c3b1e9c759
Analyze and fix the following issue in the Linux kernel code: closures: Fix race in closure_sync()
Problem Details: As pointed out by Linus, closure_sync() was racy; we could skip blocking immediately after a get() and a put(), but then that would skip any barrier corresponding to the other thread's put() barrier. To fix this, always do the full __closure_sync() sequence whenever any get() has happened and the clos...
```diff diff --git a/fs/bcachefs/fs-io-direct.c b/fs/bcachefs/fs-io-direct.c index 6a9557e7ecab..5b42a76c4796 100644 --- a/fs/bcachefs/fs-io-direct.c +++ b/fs/bcachefs/fs-io-direct.c @@ -113,6 +113,7 @@ static int bch2_direct_IO_read(struct kiocb *req, struct iov_iter *iter) } else { atomic_set(&dio->cl.remaining,...
c63e56a4a6523fcb1358e1878607d77a40b534bb
Analyze and fix the following issue in the Linux kernel code: ovl: do not open/llseek lower file with upper sb_writers held
Problem Details: overlayfs file open (ovl_maybe_lookup_lowerdata) and overlay file llseek take the ovl_inode_lock, without holding upper sb_writers. In case of nested lower overlay that uses same upper fs as this overlay, lockdep will warn about (possibly false positive) circular lock dependency when doing open/llseek...
```diff diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c index a999ae207e74..cabf4752dc3d 100644 --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -252,7 +252,9 @@ static int ovl_copy_up_file(struct ovl_fs *ofs, struct dentry *dentry, return PTR_ERR(old_file); /* Try to use clone_file_rang...