Every other dat_* consumer in this file (kvm_s390_get_skeys,
set_skeys, get_cmma_bits, set_cmma_bits, MEM_CLR_CMMA,
kvm_s390_fixup_prefix, kvm_test_age_gfn, kvm_age_gfn) reads
kvm->arch.gmap->asce *inside* the mmu_lock read-side. keyop is the only
outlier.
gmap->asce is mutated under write_lock(mmu_lock) by gmap_set_limit()
and keyop might use a stale asce value for walking as KVM_S390_KEYOP
and KVM_S390_VM_MEM_LIMIT_SIZE can run concurrently. This can result
in memory corruption.
Fixes: 0ee4ddc164 ("KVM: s390: Storage key manipulation IOCTL")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20260811153738.206885-2-borntraeger@linux.ibm.com>
The regmap defaults should be ordered as binary search is done on the
array. A few registers were added in the wrong places, move these to be
in register address order.
Fixes: a6fe20d67d ("mfd: cs42l43: Add support for the B variant")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20260805120109.4024451-1-ckeepax@opensource.cirrus.com
Signed-off-by: Lee Jones <lee@kernel.org>
The Loongson-2K0300 SoC exposes its chip ID registers through a syscon
interface. Add the specific compatible `loongson,ls2k0300-chipid-syscon`
to the allowed list of syscon bindings so that it can be referenced from
the thermal node via a phandle.
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/b76405a88b0cded91ba370139d7223fe2d6953df.1785829933.git.zhoubinbin@loongson.cn
Signed-off-by: Lee Jones <lee@kernel.org>
alloc_pid() checks PIDNS_ADDING only on the leaf pid namespace before
making a new struct pid visible in every ancestor namespace. That is
insufficient when an unborn descendant pid namespace outlives an
ancestor whose init task has already exited. The descendant can still be
initialized later through setns(), and the new pid is then published
into the dead ancestor as well.
Keep the existing ENOMEM behavior, but require PIDNS_ADDING to be set in
every namespace that will receive the new pid before publishing any of
them. This preserves the invariant that free_pid() never decrements
pid_allocated in a namespace whose child_reaper is no longer live.
Fixes: a3bdc23ba8 ("pid_namespace: allow opening pid_for_children before init was created")
Signed-off-by: Jérémy Jean <Jeremy.Jean@oss.cyber.gouv.fr>
Reviewed-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
ES8316 has separate AVDD, CPVDD, DVDD and PVDD supply inputs.
Request and enable the supplies during I2C probe, before initializing
the regmap. Keep them enabled for the lifetime of the I2C device so the
regmap cannot access an unpowered device and its cache remains
synchronized if the ASoC component is unbound and rebound.
Signed-off-by: Hongyang Zhao <hongyang.zhao@thundersoft.com>
Link: https://patch.msgid.link/20260812-es8316-regulator-next-20260722-v2-2-e7078bc9bc9c@thundersoft.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The ES8316 has separate AVDD, CPVDD, DVDD and PVDD supply inputs for
its analog, charge pump, digital core and digital I/O domains. Describe
all four inputs so boards can model the codec power topology.
The binding also covers ES8311 and ES8323, whose supply inputs differ,
so restrict these properties to the ES8316 compatible. Keep them
optional for compatibility with existing descriptions.
Signed-off-by: Hongyang Zhao <hongyang.zhao@thundersoft.com>
Link: https://patch.msgid.link/20260812-es8316-regulator-next-20260722-v2-1-e7078bc9bc9c@thundersoft.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Gus reports a bad kernel memory access when using software PAN
(CONFIG_ARM64_SW_TTBR0_PAN=y) on a machine with support for EFI runtime
services:
Unable to handle kernel access to user memory outside uaccess routines
at virtual address 00000000f322ff30
Mem abort info:
ESR = 0x0000000096000004
FSC = 0x04: level 0 translation fault
Internal error: Oops: 0000000096000004 [#1] SMP
Workqueue: efi_rts_wq efi_call_rts
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : efi_call_rts+0xd8/0x288
Call trace:
efi_call_rts+0xd8/0x288 (P)
process_one_work+0x178/0x4f8
worker_thread+0x194/0x328
This is because the fpsimd context management code called from
__efi_fpsimd_begin() can preempt voluntarily, returning later to the EFI
code with an incorrect value for TTBR0_EL1 thanks to the deferred mm
switching used by the software PAN implementation.
Since EFI runtime services cannot preempt voluntarily and because the
fpsimd switching code does not rely on the TTBR0_EL1 mappings, simply
reorder the fpsimd switch so that it occurs before we change the
page-table.
Cc: Ard Biesheuvel <ardb@kernel.org>
Reported-by: Gus Bourg <gus@bourg.net>
Tested-by: Gus Bourg <gus@bourg.net>
Fixes: a5baf582f4 ("arm64/efi: Call EFI runtime services without disabling preemption")
Link: https://lore.kernel.org/all/20260806000144.3388823-1-gus@bourg.net/
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>
Define a custom `kernel::fmt::Pointer` trait and `HashedPtr` wrapper
so that `{:p}` formatting uses the kernel's `%p` hashed format instead
of printing raw pointer values, preventing kernel address space leaks.
Signed-off-by: Ke Sun <sunke@kylinos.cn>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260810-hashedptr-v15-2-eafd27d36476@kylinos.cn
[ Fixed KUnit failure when the CRNG is not ready. Then, as suggested,
replaced the `scnprintf` comment (with v16's), changed width to 100,
replaced cast with `without_provenance`. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
The `impl_fmt_adapter_forward!` macro forwards `Pointer` for
`Adapter<T>` by destructuring `self` into a local `t`, causing `{:p}`
to print the address of that temporary stack variable rather than the
actual pointer.
Remove `Pointer` from the macro and provide a manual impl for
`Adapter<&T>` that passes `self.0` directly.
Signed-off-by: Ke Sun <sunke@kylinos.cn>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Tested-by: Link Mauve <linkmauve@linkmauve.fr>
Cc: stable@vger.kernel.org
Fixes: c5cf01ba8d ("rust: support formatting of foreign types")
Link: https://patch.msgid.link/20260810-hashedptr-v15-1-eafd27d36476@kylinos.cn
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
ovl_create_real() releases the new dentry twice when the casefold
consistency check fails. The S_IFDIR branch calls end_creating() and
sets err, then falls through to the common out: label which calls
end_creating() on the same dentry again:
case S_IFDIR:
newdentry = ovl_do_mkdir(ofs, dir, newdentry, attr->mode);
err = PTR_ERR_OR_ZERO(newdentry);
if (!err && ofs->casefold != ovl_dentry_casefolded(newdentry)) {
pr_warn_ratelimited(...);
end_creating(newdentry); /* first */
err = -EINVAL;
}
break;
...
if (err)
goto out;
...
out:
if (err) {
end_creating(newdentry); /* second, same dentry */
return ERR_PTR(err);
}
end_creating() is end_dirop(), which does inode_unlock() on the parent
and dput() on the dentry, so the parent directory's i_rwsem is unlocked
twice and the dentry is put twice. The second unlock releases a lock
that is not held, which is what wedges every later creation under that
parent, and the second dput() drops a reference that was never taken.
The branch was added by commit dfc7da402c ("ovl: Check for casefold
consistency when creating new dentries") as a bare dput(), which already
released the reference twice; commit fe497f0759 ("VFS: change
vfs_mkdir() to unlock on failure.") converted both sites to
end_creating(), adding the double unlock.
This is reachable by an unprivileged user. The casefold consistency of
the layers is validated at mount time in ovl_parse_layer(), and again on
every lookup in ovl_lookup_single(), but ofs->workdir is the internal
"work" subdirectory created inside the user-supplied workdir, and that
subdirectory is not re-checked. Marking it casefolded after the mount
therefore makes every ovl_create_temp() inherit the wrong state - and
that path reaches ovl_create_real() through ovl_start_creating_temp(),
which uses start_creating() with a generated name and so never runs the
lookup-time check.
unshare -Urm
mount -t tmpfs -o casefold=utf8-12.1.0 tmpfs mnt
mkdir -p mnt/lower/d mnt/upper mnt/work mnt/merged
mount -t overlay ovl -o lowerdir=mnt/lower,\
upperdir=mnt/upper,workdir=mnt/work mnt/merged
chattr +F mnt/work/work
mkdir mnt/merged/d/sub # directory copy-up
overlayfs: wrong inherited casefold (work/#5)
and the next copy-up blocks forever on the parent's i_rwsem:
mkdir D start_creating+0x65/0xb0
ovl_start_creating_temp+0xb0/0xe0 [overlay]
ovl_create_temp+0xa3/0x1d0 [overlay]
ovl_copy_up_one+0x1f1c/0x21c0 [overlay]
ovl_copy_up_flags+0xf5/0x140 [overlay]
ovl_create_object+0xb7/0x220 [overlay]
ovl_mkdir+0x23/0x40 [overlay]
Drop the end_creating() from the branch and let out: own the cleanup,
which is what every other error path in this function already does.
Fixes: dfc7da402c ("ovl: Check for casefold consistency when creating new dentries")
Cc: stable@vger.kernel.org
Signed-off-by: Vivek Parikh <vivek.parikh@breachx.ai>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
pipe_poll() unconditionally sets ->poll_usage on the first call, forcing
anon_pipe_write() to wake up readers on every write even if the pipe was
not empty.
The reason is that some legacy epoll(EPOLLET) users depend on historical
per-write wakeups, see commit 3a34b13a88 ("pipe: make pipe writes always
wake up readers").
Test-case:
#include <unistd.h>
#include <sys/epoll.h>
#include <assert.h>
int main(void)
{
int pfd[2], efd;
struct epoll_event evt = { .events = EPOLLIN | EPOLLET };
pipe(pfd);
efd = epoll_create1(0);
epoll_ctl(efd, EPOLL_CTL_ADD, pfd[0], &evt);
for (int i = 0; i < 2; ++i) {
write(pfd[1], "", 1);
assert(epoll_wait(efd, &evt, 1, 0) == 1);
}
return 0;
}
it fails if WRITE_ONCE(poll_usage, true) is removed from pipe_poll().
However, without EPOLLET in .events, it does not need the extra wakeup
and succeeds even if write() is called only once before the main loop.
Currently io_uring without (unsupported) IORING_POLL_ADD_LEVEL always
sets EPOLLET, and in IORING_POLL_ADD_MULTI mode it depends on per-write
wakeups the same way:
#include <unistd.h>
#include <sys/mman.h>
#include <sys/epoll.h>
#include <sys/syscall.h>
#include <linux/io_uring.h>
#include <assert.h>
int main(void)
{
struct io_uring_params p = {};
int fd, pfd[2];
pipe(pfd);
fd = syscall(SYS_io_uring_setup, 2, &p);
assert(fd >= 0);
void *ring = mmap(0, p.cq_off.cqes + p.cq_entries * sizeof(struct io_uring_cqe),
PROT_READ | PROT_WRITE, MAP_SHARED, fd, IORING_OFF_SQ_RING);
assert(ring != MAP_FAILED);
*(unsigned *)(ring + p.sq_off.tail) = 1;
struct io_uring_sqe *sqes = mmap(0, p.sq_entries * sizeof(*sqes),
PROT_READ | PROT_WRITE, MAP_SHARED, fd, IORING_OFF_SQES);
assert(sqes != MAP_FAILED);
sqes[0].opcode = IORING_OP_POLL_ADD;
sqes[0].fd = pfd[0];
sqes[0].len = IORING_POLL_ADD_MULTI;
sqes[0].poll32_events = EPOLLIN;
syscall(SYS_io_uring_enter, fd, 1, 0, 0, 0, 0);
unsigned *cq_head = ring + p.cq_off.head;
unsigned *cq_tail = ring + p.cq_off.tail;
for (int i = 0; i < 2; ++i) {
write(pfd[1], "", 1);
syscall(SYS_io_uring_enter, fd, 0, 0, IORING_ENTER_GETEVENTS, 0, 0);
assert(*cq_tail == ++*cq_head);
}
return 0;
}
the 2nd assert() in the main loop fails without ->poll_usage == true.
Rename ->poll_usage to ->pseudo_edgetrigger to make the purpose clearer,
update the comments, and change pipe_poll() to set ->pseudo_edgetrigger
only if wait->_key & EPOLLET is true. This check should catch both users,
and this way poll/select and epoll without EPOLLET users will not pay for
the extra wakeup.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Link: https://patch.msgid.link/anCNoW-x0bcB2ggg@redhat.com
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
The PIDFD_GET_*_NAMESPACE ioctls in pidfd_ioctl() perform a filesystem
credentials ptrace access check before handing out a namespace file
descriptor. The accompanying comment states that the code "mirrors nsfs
behavior", but, unlike the corresponding procfs paths, it does so without
holding the target task's exec_update_lock.
proc_ns_get_link() and proc_ns_readlink() both take exec_update_lock for
reading around the ptrace check and the namespace lookup, so that the
credentials used for the access decision match those of the task when its
namespace is read. Without it, a caller can pass the check against the
target's old credentials and then read the namespace after the target has
execve()'d a setuid binary and committed new credentials -- accessing
namespace information it should have been denied.
Hold exec_update_lock for reading around the ptrace check and the
namespace lookup so that pidfd truly mirrors nsfs behavior, as the comment
already claims. open_namespace() itself runs outside the lock: once a
namespace reference is obtained it carries its own refcount and is opened
with the caller's own credentials, so a concurrent execve() on the target
can no longer affect the outcome.
Fixes: 5b08bd4085 ("pidfs: allow retrieval of namespace file descriptors")
Cc: stable@vger.kernel.org
Signed-off-by: Chen Linxuan <me@black-desk.cn>
Link: https://patch.msgid.link/20260731-pidfd-exec-update-lock-v1-1-b388f2f3a8b0@black-desk.cn
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
backing_file_open() derives the path to be stored in the new backing
file from user_file->f_path. This is incorrect when user_file itself
is a backing file, which is the case for nested stacking filesystems,
e.g. overlayfs mounts where the lowerdir of one overlayfs is the merged
directory of another. Since commit def3ae83da ("fs: store real path
instead of fake path in backing file f_path") the f_path of a backing
file holds the real path of the intermediate layer, not the path that
the user opened.
Commit 924577e4f6 ("ovl: Fix nested backing file paths") fixed this
for such configurations by passing file_user_path() from
ovl_open_realfile(). However, commit 6af36aeb14 ("lsm: add
backing_file LSM hooks") changed the first argument of
backing_file_open() from the user path back to the user file and
derived the path from user_file->f_path again, silently re-introducing
the problem.
As a result, files mapped through a nested overlayfs show the wrong
path in /proc/<pid>/maps and in perf/ftrace mmap records. For example,
with two nested overlayfs mounts:
mkdir -p /ovl/{lower,upper,work,merged} /ovl/nested
echo hello > /ovl/lower/foo
mount -t overlay overlay \
-o lowerdir=/ovl/lower,upperdir=/ovl/upper,workdir=/ovl/work \
/ovl/merged
# at least two lowerdirs are needed when upperdir is nonexistent
mount -t overlay overlay \
-o lowerdir=/ovl/merged:/ovl/lower /ovl/nested
mapping /ovl/nested/foo shows a disconnected path instead of the user
path:
# readlink /proc/self/fd/3
/ovl/nested/foo
# grep foo /proc/self/maps
7f6e2c100000-7f6e2c101000 r--s 00000000 00:24 15813027 /foo
The bogus path is derived from the f_path of the intermediate backing
file, whose mount is a private clone that d_path() cannot resolve.
Fix this by using file_user_path(), which returns the outermost
user-visible path for backing files and falls back to
&user_file->f_path for regular files. This restores the behavior of
commit 924577e4f6 ("ovl: Fix nested backing file paths") for
overlayfs and also fixes the same problem for the other
backing_file_open() callers, fuse passthrough and erofs ishare, when
their user file is itself a backing file.
backing_tmpfile_open() has the same pattern but is not affected: it is
only called by ovl_create_tmpfile() for the upper layer, and another
overlayfs is rejected as upperdir by the DCACHE_OP_REAL check in
ovl_mount_dir_check(), so its user_file can never be a backing file.
Fixes: 6af36aeb14 ("lsm: add backing_file LSM hooks")
Cc: stable@vger.kernel.org
Signed-off-by: Baokun Li <libaokun@linux.alibaba.com>
Link: https://patch.msgid.link/20260804034204.3487077-1-libaokun@linux.alibaba.com
Tested-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
inode_insert5() no longer has an isnew argument, but its
kernel-doc still documents one. This triggers a W=1 kernel-doc
warning.
Remove the stale parameter description.
Signed-off-by: Yichong Chen <chenyichong@uniontech.com>
Link: https://patch.msgid.link/20260805024149.935769-1-chenyichong@uniontech.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
The case labels in the sysfs(2) syscall implementation are indented
one level deeper than the switch statement itself, which does not
match the kernel coding style (switch and case should be at the same
indentation level). Fix the indentation; no functional change.
Signed-off-by: Manush Prajwal <manushprajwal555@gmail.com>
Link: https://patch.msgid.link/20260808182816.2399-1-manushprajwal555@gmail.com
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
The uid stored in struct kstat is logically a vfsuid; file systems
initialize it by converting a kuid (filesystem perspective) to a vfsuid
(mount perspective), then use vfsuid_into_kuid(), which essentially just
typecasts from vfsuid to kuid.
For now, just add a comment to note this mismatch between C type and
semantic type.
Below are some notes for anyone who wants to refactor this in the future.
There are probably two options to refactor this away:
1. Change the type of kstat::uid to vfsuid_t, and perform the conversion
from vfsuid to userspace-uid in the VFS layer. This wouldn't change
machine code, just be more semantically correct.
2. Change the semantics of kstat::uid to really be a kuid_t, and let the
VFS layer take care of doing the translation from kuid to vfsuid that is
currently done in filesystem code (or in generic_fillattr, on behalf of
the filesystem code).
Option 2 is probably neater since it moves more logic into the generic VFS
layer, and this is something that is expected to work the same way in all
file systems?
The following coccinelle script:
```
virtual context
@@
struct kstat *stat;
@@
* stat->uid
@@
struct kstat *stat;
@@
* stat->gid
@@
struct kstat stat;
@@
* stat.uid
@@
struct kstat stat;
@@
* stat.gid
```
detects 43 field accesses to these uid/gid fields.
Signed-off-by: Jann Horn <jannh@google.com>
Link: https://patch.msgid.link/20260803-vfs-comment-stat-uid-v1-1-162d062b737c@google.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
Merge the pmdomain fixes for v7.2-rc[n] into the next branch, to allow
them to get tested together with the pmdomain changes that are targeted
for the next release.
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
mtk_mfg_attach_dev() reads prev_o on the first iteration of its loop,
in "if (prev_o && prev_o->freq == o->freq)", before prev_o is assigned
at the end of the loop body. On that first iteration, evaluating prev_o
reads an indeterminate value. If it is non-NULL, the condition
dereferences a stale or invalid pointer, potentially faulting or
incorrectly skipping the first OPP.
Initialize prev_o to NULL. This matches the intent as well: there is no
previous OPP to compare against on the first iteration.
Found with Clang's -Wconditional-uninitialized.
Fixes: f08e7a4e8d ("pmdomain: mediatek: Add support for MFlexGraphics")
Assisted-by: Claude:claude-fable-5
Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
Reviewed-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
Add a minimal Module Controller driver for the R-Car X5H (R8A78000) SoC.
For now this just supports the always-on power domains, and dummy module
clocks and resets for the serial console (which is enabled by the boot
loader).
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Ulf Hansson <ulfh@kernel.org>
qnap_mcu_exec() publishes an on-stack buffer to the receive path:
unsigned char rx[QNAP_MCU_RX_BUFFER_SIZE];
...
reply->data = rx;
reply->length = length;
and qnap_mcu_receive_buf() writes into it from the serdev receive path,
which runs out of flush_to_ldisc() and is not serialized against
qnap_mcu_exec() at all. bus_lock cannot cover it, because qnap_mcu_exec()
holds that mutex across wait_for_completion_timeout().
On a timeout qnap_mcu_exec() returns with reply->data still pointing at
its own frame. A reply that arrives late, or an unsolicited message from
the MCU, is then written into a stack frame that has been left, corrupting
whatever runs next on that stack. The same applies when qnap_mcu_write()
fails, since that path returns without touching the reply state either.
Move the receive buffer into struct qnap_mcu. It is 37 bytes and the
structure is devm_kzalloc()ed, so it lives as long as the driver, and a
late write lands in memory that is still valid and is reinitialized by the
next command. bus_lock keeps commands from sharing it.
This deliberately does not clear reply->data or reply->length on the
timeout path. Doing so races with qnap_mcu_receive_buf(), which reads both
after its
if (!reply->length)
return size;
check: clearing reply->data gives a NULL dereference, and clearing
reply->length alone removes the reply->received == reply->length exit
condition, so the copy loop runs until the uart chunk is consumed and
overruns the buffer. Leaving both set keeps the write bounded by
reply->length, which qnap_mcu_exec() has already checked against
sizeof(mcu->rx).
Fixes: 998f70d180 ("mfd: Add base driver for qnap-mcu devices")
Cc: stable@vger.kernel.org
Signed-off-by: Ali Ahmet Memis <ali@iusegentoo.com>
Link: https://lore.kernel.org/all/20260802132012.537B81F000E9@smtp.kernel.org/
Link: https://patch.msgid.link/20260802135307.31380-1-ali@iusegentoo.com
Signed-off-by: Lee Jones <lee@kernel.org>
All users have been migrated to `ModuleMetadata::THIS_MODULE` const or
`this_module::<LocalModule>()` helper. The `static THIS_MODULE`
generated by the `module!` macro is no longer referenced anywhere,
so remove it to avoid having two sources of the same `ThisModule`
pointer.
Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Alvin Sun <alvin.sun@linux.dev>
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-9-7e71776f9dbe@linux.dev
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Replace the `THIS_MODULE` static reference in the binder fops with
`this_module::<LocalModule>()`, consistent with the move of
`THIS_MODULE` into the `ModuleMetadata` trait.
Assisted-by: opencode:glm-5.2
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Alvin Sun <alvin.sun@linux.dev>
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-8-7e71776f9dbe@linux.dev
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Replace the `THIS_MODULE` static reference in the `configfs_attrs!`
macro with `this_module::<LocalModule>()`, and update
rnull to import `LocalModule` instead of `THIS_MODULE`, consistent
with the move of `THIS_MODULE` into the `ModuleMetadata` trait.
Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Andreas Hindborg <a.hindborg@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Alvin Sun <alvin.sun@linux.dev>
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-7-7e71776f9dbe@linux.dev
[ Rebased to avoid the imports cleanup patch. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Set the miscdevice fops owner field from the driver module pointer
via the `this_module::<T::OwnerModule>()` helper, instead of
defaulting to null.
Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Alvin Sun <alvin.sun@linux.dev>
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-6-7e71776f9dbe@linux.dev
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Change `create_fops()` to accept an owner module pointer instead of
hardcoding `null_mut()`, ensuring the kernel correctly tracks the
module owning the DRM device's file operations.
Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Alvin Sun <alvin.sun@linux.dev>
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-5-7e71776f9dbe@linux.dev
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Auto-add `type OwnerModule: ::kernel::ModuleMetadata;` as a required
associated type on the trait side if not already defined, and
auto-insert `type OwnerModule = crate::LocalModule;` on the impl side
if not explicitly provided, eliminating the need to manually declare
and implement `OwnerModule` in every vtable trait and impl.
Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Suggested-by: Gary Guo <gary@garyguo.net>
Link: https://lore.kernel.org/all/DIMMWHUOLPSH.13JFRHDKDQJGO@garyguo.net
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Alvin Sun <alvin.sun@linux.dev>
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-4-7e71776f9dbe@linux.dev
[ Fixed `rusttest` by adding a dummy `LocalModule`. Removed interim
`#[allow(dead_code)]`. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Add a `LocalModule` struct with a null-pointer `ModuleMetadata` impl
in the doctest harness, so that `crate::LocalModule` (auto-inserted
by `#[vtable]`) resolves correctly when there is no `module!` macro.
Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Alvin Sun <alvin.sun@linux.dev>
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-3-7e71776f9dbe@linux.dev
[ Fixed `clippy::undocumented_unsafe_blocks` lint by wrapping with
a block. Added interim `#[allow(dead_code)]`. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Since `const_refs_to_static` has been stable as of the MSRV bump, a
`ThisModule` pointer can now be used in const contexts.
Add a `THIS_MODULE` const to the `ModuleMetadata` trait so that modules
can provide their `ThisModule` pointer in const contexts such as static
`file_operations`.
Add a `this_module()` helper to retrieve the `THIS_MODULE` pointer of a
given module type, and update `__init` to use it instead of the
`THIS_MODULE` static generated by the `module!` macro.
The `static THIS_MODULE` generated by the `module!` macro is retained
for backwards compatibility with existing users and removed in a later
patch once all references have been migrated.
Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Alvin Sun <alvin.sun@linux.dev>
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-2-7e71776f9dbe@linux.dev
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Move `Module`, `InPlaceModule`, `ModuleMetadata` and `ThisModule` from
`lib.rs` into a new `rust/kernel/module.rs`. Re-export them from `lib.rs`
to avoid tree-wide changes.
Switch six bus driver registrations from `module.0` to the public
`ThisModule::as_ptr()` accessor, since the field is no longer visible
outside the new `module` submodule.
No functional change.
Assisted-by: opencode:glm-5.2
Suggested-by: Gary Guo <gary@garyguo.net>
Link: https://lore.kernel.org/all/DJFIQPLOVO4T.1K8T0VZM30LDA@garyguo.net/
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Alvin Sun <alvin.sun@linux.dev>
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-1-7e71776f9dbe@linux.dev
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Christoph Hellwig <hch@lst.de> says:
Two fixes for iomap_bio_read_folio_range_sync, a potential kernel
crash when tweaking the device integrity behvavior using sysfs,
and a missing bio_uninit that the Sashiko review of the first fix
found.
* patches from https://patch.msgid.link/20260804124404.737145-1-hch@lst.de:
iomap: iomap_bio_read_folio_range_sync is missing a call to bio_uninit
iomap: don't free integrity payload that doesn't exist
Link: https://patch.msgid.link/20260804124404.737145-1-hch@lst.de
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
Which could leak blkg references.
Fixes: c03cea4214 ("iomap: add initial support for writes without buffer heads")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://patch.msgid.link/20260804124404.737145-3-hch@lst.de
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
fs_bio_integrity_alloc might not allocate a bio integrity payload if PI
verification is disabled on the block device. Check for that case before
calling fs_bio_integrity_free in iomap_bio_read_folio_range_sync to
avoid a NULL pointer dereferences.
Make the branch cover the PI verification as well - while
fs_bio_integrity_verify works without an integrity payload, it requires
one to actually do useful work.
Fixes: 0b10a37052 ("iomap: support T10 protection information")
Cc: stable@vger.kernel.org # v7.1
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Link: https://patch.msgid.link/20260804124404.737145-2-hch@lst.de
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
WARN_ON_ONCE() takes a condition, not a message. The string literals
are always true, so the warnings still trigger but the messages are
never printed.
Use WARN_ONCE(1, ...) instead to print the messages and keep the
once-only behavior.
Found with a Coccinelle script. Clang's -Wstring-conversion also flags
such calls but is not enabled in kernel builds.
Fixes: f0cd988016 ("fs: massage locking helpers")
Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>
Link: https://patch.msgid.link/20260808123802.73687-1-kmehltretter@gmail.com
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
Add global, TCSR, RPMh, and video clock controller support for Maili.
Add global, RPM, GPU, display, and audio core clock controller support for
Shikra. Add display and graphics clock controllers for Nord.
Add Glymur camera and EVA clock controllers, the IPQ9650 REFGEN clocks, and
Hawi video clock controller support. Extend the IPQ5210 APSS PLL and RPM
clock support for Agatti.
Enable runtime PM and regulator-backed reference clock handling where needed.
Update QCM2290 clock and power-domain handling, critical clock definitions,
and arm architecture Kconfig defaults.
Correct MDM9607, MSM8916, MSM8939, SM6115, QCS8300, Kaanapali, and Glymur
clock and power-domain handling. Improve GDSC error propagation and teardown.
Update bindings for the added controllers and required power and OPP
properties.
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Merge tag 'qcom-clk-for-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into clk-qcom
Pull Qualcomm clk driver updates from Bjorn Andersson:
Add global, TCSR, RPMh, and video clock controller support for Maili.
Add global, RPM, GPU, display, and audio core clock controller support for
Shikra. Add display and graphics clock controllers for Nord.
Add Glymur camera and EVA clock controllers, the IPQ9650 REFGEN clocks, and
Hawi video clock controller support. Extend the IPQ5210 APSS PLL and RPM
clock support for Agatti.
Enable runtime PM and regulator-backed reference clock handling where needed.
Update QCM2290 clock and power-domain handling, critical clock definitions,
and arm architecture Kconfig defaults.
Correct MDM9607, MSM8916, MSM8939, SM6115, QCS8300, Kaanapali, and Glymur
clock and power-domain handling. Improve GDSC error propagation and teardown.
Update bindings for the added controllers and required power and OPP
properties.
* tag 'qcom-clk-for-7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux: (94 commits)
clk: qcom: Add support for Qualcomm GPU Clock Controller on Shikra
clk: qcom: Return expected ENOMEM error on dynamic allocation failure
clk: qcom: apss-ipq-pll: Add IPQ5210 support
dt-bindings: clock: qcom,a53pll: Add IPQ5210 compatible
clk: qcom: Add support for videocc driver on Qualcomm Maili SoC
dt-bindings: clock: qcom: Add Qualcomm Maili video clock controller
dt-bindings: clock: qcom: Add Qualcomm Shikra GPU clock controller
dt-bindings: clock: qcom: Add Qualcomm Shikra Display clock controller
clk: qcom: gpucc-qcm2290: Park RCG's clk source at XO during disable
clk: qcom: gpucc-qcm2290: Keep the critical clocks always-on from probe
clk: qcom: gpucc-qcm2290: Move to the latest common qcom_cc_probe() model
clk: qcom: gpucc-qcm2290: Drop pm_clk handling
clk: qcom: qcm2290: Update DISPCC and GPUCC GDSC *wait_val values
clk: qcom: qcm2290: Add RETAIN_FF_ENABLE flag for DISPCC and GPUCC GDSCs
clk: qcom: qcm2290: Set POLL_CFG_GDSCR flag for DISPCC and GPUCC GDSCs
clk: qcom: dispcc-qcm2290: Enable runtime PM support
clk: qcom: dispcc-qcm2290: Move to the latest common qcom_cc_probe() model
clk: qcom: gcc-qcm2290: Keep the critical clocks always-on from probe
dt-bindings: clock: qcom,qcm2290-dispcc: Add missing power-domains property
clk: qcom: Add Audio Core clock controller support on Qualcomm Shikra SoC
...
fractional PLL coefficients and a fix for the dclk of the 3rd video-port to
not affect other compoents when its rate gets changed.
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Merge tag 'v7.3-rockchip-clk1' of https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-rockchip
Pull Rockchip clk driver updates from Heiko Stuebner:
- Clock driver for Rockchip RV1106
- Fix for Rockchip rk3576 spi source mux
- Better representing fractional PLL coefficients in Rockchip
clk driver
- Fix for the Rockchip dclk of the 3rd video-port to not affect
other compoents when its rate gets changed
* tag 'v7.3-rockchip-clk1' of https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
clk: rockchip: rk3576: fix source muxes for SPI0..SPI4
clk: rockchip: Add clock controller for the RV1106
dt-bindings: clock: rockchip: Add RV1106 CRU support
clk: rockchip: Fractional PLL coefficient on RK3588/RK3576 is two's complement
clk: rockchip: Fix the fractional part denominator on RK3588/RK3576 PLLs
clk: rockchip: rk3588: Allow VP2 the same sourcing options as other VPs
clk: rockchip: rk3588: Don't change PLL rates when setting dclk_vop2_src
The "reg" property is an address-sized DT cell property. The AT91
compat clock parser only uses a small bus id from it, but reading it
with the u8 helper does not match the property encoding.
Use of_property_read_reg() so the code goes through the helper for
"reg" properties, then keep the existing range check before passing
the bus id to the clock registration code.
Assisted-by: Codex:gpt-5-5
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Brian Masney <bmasney@redhat.com>
Link: https://patch.msgid.link/20260612215251.1888345-1-robh@kernel.org
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Replace six sprintf() calls that write to
SNDRV_CTL_ELEM_ID_NAME_MAXLEN-sized buffers with snprintf() to avoid
potential buffer overflows.
Signed-off-by: Bob Song <songxiebing@kylinos.cn>
Link: https://patch.msgid.link/20260812033030.635417-1-songxiebing@kylinos.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ca0132_free() and dbpro_free() call kfree(codec->spec) without
setting codec->spec to NULL afterward, leaving a dangling pointer.
Set it to NULL.
Signed-off-by: Bob Song <songxiebing@kylinos.cn>
Link: https://patch.msgid.link/20260812033019.635010-1-songxiebing@kylinos.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
hda_bus_match() has an unreachable 'return 1' after an if/else that
covers both branches. Remove the superfluous return and simplify the
control flow by dropping the else branch.
hdac_codec_match() uses a redundant if/else to return 1 or 0.
Simplify to a single return statement.
Signed-off-by: Bob Song <songxiebing@kylinos.cn>
Link: https://patch.msgid.link/20260812033007.633564-1-songxiebing@kylinos.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The fixed audio formats for the PreSonus AudioBox USB specify a discrete
rate mask but leave nr_rates at zero and rate_table unset. find_format()
therefore rejects every requested rate, preventing the playback and
capture streams from being opened.
Add the advertised 44100 and 48000 Hz rates to both streams and report
their 24 significant bits.
Fixes: 34fe4a9df2 ("ALSA: usb-audio: Add quirk for PreSonus AudioBox USB")
Cc: stable@vger.kernel.org
Signed-off-by: Trevor Vorhees <vorhees-work@proton.me>
Link: https://patch.msgid.link/20260811-audiobox-usb-fix-v1-1-13c8b7f071ea@proton.me
Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Fix the incorrect parent number of the 32k clock on GXBB
* Add the AO and peripheral clock controllers for the new A9 chip
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Merge tag 'clk-meson-v7.3-1' of ssh://github.com/BayLibre/clk-meson into clk-amlogic
Pull Amlogic clk driver updates from Jerome Brunet:
- Fix the incorrect parent number of the 32k clock on Amlogic GXBB
- Add the AO and peripheral clock controllers for the new Amlogic A9 chip
* tag 'clk-meson-v7.3-1' of ssh://github.com/BayLibre/clk-meson:
clk: amlogic: Add A9 peripherals clock controller driver
dt-bindings: clock: Add Amlogic A9 peripherals clock controller
clk: amlogic: Add A9 AO clock controller driver
dt-bindings: clock: Add Amlogic A9 AO clock controller
clk: meson: align gxbb_32k_clk_sel number of parents with actual count
This patchset brings the support of the Other Logic Blocks (OLB)
found in the first Mobileye SoC based on the RISC-V architecture, the
EyeQ7H. Despite the change from MIPS to RISC-V, the Other Logic Blocks
provide similar clock and reset functions to the controllers of the
chip. This series introduces the device tree bindings of the SoC and
the necessary changes to the clock and reset eyeq drivers.
Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
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Merge tag 'clk-eyeq7h-7.3' of ssh://github.com/benoitmonin/linux into clk-mobileye
Pull Mobileye clk driver updates from Benoît Monin:
- Add support for Mobileye EyeQ7H
This patchset brings the support of the Other Logic Blocks (OLB)
found in the first Mobileye SoC based on the RISC-V architecture, the
EyeQ7H. Despite the change from MIPS to RISC-V, the Other Logic Blocks
provide similar clock and reset functions to the controllers of the
chip. This series introduces the device tree bindings of the SoC and
the necessary changes to the clock and reset eyeq drivers.
Signed-off-by: Benoît Monin <benoit.monin@bootlin.com>
* tag 'clk-eyeq7h-7.3' of ssh://github.com/benoitmonin/linux:
clk: eyeq: Add EyeQ7H compatibles
clk: eyeq: Drop PLL, dividers, and fixed factors structs
clk: eyeq: Convert clocks declaration to eqc_clock
clk: eyeq: Introduce a generic clock type
clk: eyeq: Prefix the PLL registers with the PLL type
clk: fixed-factor: Export __clk_hw_register_fixed_factor()
clk: fixed-factor: Rework initialization with parent clocks
reset: eyeq: Add EyeQ7H compatibles
dt-bindings: soc: mobileye: Add EyeQ7H OLB
