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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs uuid updates from Christian Brauner:
"This adds two new ioctl()s for getting the filesystem uuid and
retrieving the sysfs path based on the path of a mounted filesystem.
Getting the filesystem uuid has been implemented in filesystem
specific code for a while it's now lifted as a generic ioctl"
* tag 'vfs-6.9.uuid' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
xfs: add support for FS_IOC_GETFSSYSFSPATH
fs: add FS_IOC_GETFSSYSFSPATH
fat: Hook up sb->s_uuid
fs: FS_IOC_GETUUID
ovl: convert to super_set_uuid()
fs: super_set_uuid()
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull block handle updates from Christian Brauner:
"Last cycle we changed opening of block devices, and opening a block
device would return a bdev_handle. This allowed us to implement
support for restricting and forbidding writes to mounted block
devices. It was accompanied by converting and adding helpers to
operate on bdev_handles instead of plain block devices.
That was already a good step forward but ultimately it isn't necessary
to have special purpose helpers for opening block devices internally
that return a bdev_handle.
Fundamentally, opening a block device internally should just be
equivalent to opening files. So now all internal opens of block
devices return files just as a userspace open would. Instead of
introducing a separate indirection into bdev_open_by_*() via struct
bdev_handle bdev_file_open_by_*() is made to just return a struct
file. Opening and closing a block device just becomes equivalent to
opening and closing a file.
This all works well because internally we already have a pseudo fs for
block devices and so opening block devices is simple. There's a few
places where we needed to be careful such as during boot when the
kernel is supposed to mount the rootfs directly without init doing it.
Here we need to take care to ensure that we flush out any asynchronous
file close. That's what we already do for opening, unpacking, and
closing the initramfs. So nothing new here.
The equivalence of opening and closing block devices to regular files
is a win in and of itself. But it also has various other advantages.
We can remove struct bdev_handle completely. Various low-level helpers
are now private to the block layer. Other helpers were simply
removable completely.
A follow-up series that is already reviewed build on this and makes it
possible to remove bdev->bd_inode and allows various clean ups of the
buffer head code as well. All places where we stashed a bdev_handle
now just stash a file and use simple accessors to get to the actual
block device which was already the case for bdev_handle"
* tag 'vfs-6.9.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (35 commits)
block: remove bdev_handle completely
block: don't rely on BLK_OPEN_RESTRICT_WRITES when yielding write access
bdev: remove bdev pointer from struct bdev_handle
bdev: make struct bdev_handle private to the block layer
bdev: make bdev_{release, open_by_dev}() private to block layer
bdev: remove bdev_open_by_path()
reiserfs: port block device access to file
ocfs2: port block device access to file
nfs: port block device access to files
jfs: port block device access to file
f2fs: port block device access to files
ext4: port block device access to file
erofs: port device access to file
btrfs: port device access to file
bcachefs: port block device access to file
target: port block device access to file
s390: port block device access to file
nvme: port block device access to file
block2mtd: port device access to files
bcache: port block device access to files
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull file locking updates from Christian Brauner:
"A few years ago struct file_lock_context was added to allow for
separate lists to track different types of file locks instead of using
a singly-linked list for all of them.
Now leases no longer need to be tracked using struct file_lock.
However, a lot of the infrastructure is identical for leases and locks
so separating them isn't trivial.
This splits a group of fields used by both file locks and leases into
a new struct file_lock_core. The new core struct is embedded in struct
file_lock. Coccinelle was used to convert a lot of the callers to deal
with the move, with the remaining 25% or so converted by hand.
Afterwards several internal functions in fs/locks.c are made to work
with struct file_lock_core. Ultimately this allows to split struct
file_lock into struct file_lock and struct file_lease. The file lease
APIs are then converted to take struct file_lease"
* tag 'vfs-6.9.file' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (51 commits)
filelock: fix deadlock detection in POSIX locking
filelock: always define for_each_file_lock()
smb: remove redundant check
filelock: don't do security checks on nfsd setlease calls
filelock: split leases out of struct file_lock
filelock: remove temporary compatibility macros
smb/server: adapt to breakup of struct file_lock
smb/client: adapt to breakup of struct file_lock
ocfs2: adapt to breakup of struct file_lock
nfsd: adapt to breakup of struct file_lock
nfs: adapt to breakup of struct file_lock
lockd: adapt to breakup of struct file_lock
fuse: adapt to breakup of struct file_lock
gfs2: adapt to breakup of struct file_lock
dlm: adapt to breakup of struct file_lock
ceph: adapt to breakup of struct file_lock
afs: adapt to breakup of struct file_lock
9p: adapt to breakup of struct file_lock
filelock: convert seqfile handling to use file_lock_core
filelock: convert locks_translate_pid to take file_lock_core
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull pdfd updates from Christian Brauner:
- Until now pidfds could only be created for thread-group leaders but
not for threads. There was no technical reason for this. We simply
had no users that needed support for this. Now we do have users that
need support for this.
This introduces a new PIDFD_THREAD flag for pidfd_open(). If that
flag is set pidfd_open() creates a pidfd that refers to a specific
thread.
In addition, we now allow clone() and clone3() to be called with
CLONE_PIDFD | CLONE_THREAD which wasn't possible before.
A pidfd that refers to an individual thread differs from a pidfd that
refers to a thread-group leader:
(1) Pidfds are pollable. A task may poll a pidfd and get notified
when the task has exited.
For thread-group leader pidfds the polling task is woken if the
thread-group is empty. In other words, if the thread-group
leader task exits when there are still threads alive in its
thread-group the polling task will not be woken when the
thread-group leader exits but rather when the last thread in the
thread-group exits.
For thread-specific pidfds the polling task is woken if the
thread exits.
(2) Passing a thread-group leader pidfd to pidfd_send_signal() will
generate thread-group directed signals like kill(2) does.
Passing a thread-specific pidfd to pidfd_send_signal() will
generate thread-specific signals like tgkill(2) does.
The default scope of the signal is thus determined by the type
of the pidfd.
Since use-cases exist where the default scope of the provided
pidfd needs to be overriden the following flags are added to
pidfd_send_signal():
- PIDFD_SIGNAL_THREAD
Send a thread-specific signal.
- PIDFD_SIGNAL_THREAD_GROUP
Send a thread-group directed signal.
- PIDFD_SIGNAL_PROCESS_GROUP
Send a process-group directed signal.
The scope change will only work if the struct pid is actually
used for this scope.
For example, in order to send a thread-group directed signal the
provided pidfd must be used as a thread-group leader and
similarly for PIDFD_SIGNAL_PROCESS_GROUP the struct pid must be
used as a process group leader.
- Move pidfds from the anonymous inode infrastructure to a tiny pseudo
filesystem. This will unblock further work that we weren't able to do
simply because of the very justified limitations of anonymous inodes.
Moving pidfds to a tiny pseudo filesystem allows for statx on pidfds
to become useful for the first time. They can now be compared by
inode number which are unique for the system lifetime.
Instead of stashing struct pid in file->private_data we can now stash
it in inode->i_private. This makes it possible to introduce concepts
that operate on a process once all file descriptors have been closed.
A concrete example is kill-on-last-close. Another side-effect is that
file->private_data is now freed up for per-file options for pidfds.
Now, each struct pid will refer to a different inode but the same
struct pid will refer to the same inode if it's opened multiple
times. In contrast to now where each struct pid refers to the same
inode.
The tiny pseudo filesystem is not visible anywhere in userspace
exactly like e.g., pipefs and sockfs. There's no lookup, there's no
complex inode operations, nothing. Dentries and inodes are always
deleted when the last pidfd is closed.
We allocate a new inode and dentry for each struct pid and we reuse
that inode and dentry for all pidfds that refer to the same struct
pid. The code is entirely optional and fairly small. If it's not
selected we fallback to anonymous inodes. Heavily inspired by nsfs.
The dentry and inode allocation mechanism is moved into generic
infrastructure that is now shared between nsfs and pidfs. The
path_from_stashed() helper must be provided with a stashing location,
an inode number, a mount, and the private data that is supposed to be
used and it will provide a path that can be passed to dentry_open().
The helper will try retrieve an existing dentry from the provided
stashing location. If a valid dentry is found it is reused. If not a
new one is allocated and we try to stash it in the provided location.
If this fails we retry until we either find an existing dentry or the
newly allocated dentry could be stashed. Subsequent openers of the
same namespace or task are then able to reuse it.
- Currently it is only possible to get notified when a task has exited,
i.e., become a zombie and userspace gets notified with EPOLLIN. We
now also support waiting until the task has been reaped, notifying
userspace with EPOLLHUP.
- Ensure that ESRCH is reported for getfd if a task is exiting instead
of the confusing EBADF.
- Various smaller cleanups to pidfd functions.
* tag 'vfs-6.9.pidfd' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (23 commits)
libfs: improve path_from_stashed()
libfs: add stashed_dentry_prune()
libfs: improve path_from_stashed() helper
pidfs: convert to path_from_stashed() helper
nsfs: convert to path_from_stashed() helper
libfs: add path_from_stashed()
pidfd: add pidfs
pidfd: move struct pidfd_fops
pidfd: allow to override signal scope in pidfd_send_signal()
pidfd: change pidfd_send_signal() to respect PIDFD_THREAD
signal: fill in si_code in prepare_kill_siginfo()
selftests: add ESRCH tests for pidfd_getfd()
pidfd: getfd should always report ESRCH if a task is exiting
pidfd: clone: allow CLONE_THREAD | CLONE_PIDFD together
pidfd: exit: kill the no longer used thread_group_exited()
pidfd: change do_notify_pidfd() to use __wake_up(poll_to_key(EPOLLIN))
pid: kill the obsolete PIDTYPE_PID code in transfer_pid()
pidfd: kill the no longer needed do_notify_pidfd() in de_thread()
pidfd_poll: report POLLHUP when pid_task() == NULL
pidfd: implement PIDFD_THREAD flag for pidfd_open()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull iomap updates from Christian Brauner:
- Restore read-write hints in struct bio through the bi_write_hint
member for the sake of UFS devices in mobile applications. This can
result in up to 40% lower write amplification in UFS devices. The
patch series that builds on this will be coming in via the SCSI
maintainers (Bart)
- Overhaul the iomap writeback code. Afterwards ->map_blocks() is able
to map multiple blocks at once as long as they're in the same folio.
This reduces CPU usage for buffered write workloads on e.g., xfs on
systems with lots of cores (Christoph)
- Record processed bytes in iomap_iter() trace event (Kassey)
- Extend iomap_writepage_map() trace event after Christoph's
->map_block() changes to map mutliple blocks at once (Zhang)
* tag 'vfs-6.9.iomap' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (22 commits)
iomap: Add processed for iomap_iter
iomap: add pos and dirty_len into trace_iomap_writepage_map
block, fs: Restore the per-bio/request data lifetime fields
fs: Propagate write hints to the struct block_device inode
fs: Move enum rw_hint into a new header file
fs: Split fcntl_rw_hint()
fs: Verify write lifetime constants at compile time
fs: Fix rw_hint validation
iomap: pass the length of the dirty region to ->map_blocks
iomap: map multiple blocks at a time
iomap: submit ioends immediately
iomap: factor out a iomap_writepage_map_block helper
iomap: only call mapping_set_error once for each failed bio
iomap: don't chain bios
iomap: move the iomap_sector sector calculation out of iomap_add_to_ioend
iomap: clean up the iomap_alloc_ioend calling convention
iomap: move all remaining per-folio logic into iomap_writepage_map
iomap: factor out a iomap_writepage_handle_eof helper
iomap: move the PF_MEMALLOC check to iomap_writepages
iomap: move the io_folios field out of struct iomap_ioend
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull ntfs update from Christian Brauner:
"This removes the old ntfs driver. The new ntfs3 driver is a full
replacement that was merged over two years ago. We've went through
various userspace and either they use ntfs3 or they use the fuse
version of ntfs and thus build neither ntfs nor ntfs3. I think that's
a clear sign that we should risk removing the legacy ntfs driver.
Quoting from Arch Linux and Debian:
- Debian does neither build the legacy ntfs nor the new ntfs3:
"Not currently built with Debian's kernel packages, 'ntfs' has been
symlinked to 'ntfs-3g' as it relates to fstab and mount commands.
Debian kernels are built without support of the ntfs3 driver
developed by Paragon Software." (cf. [2])
- Archlinux provides ntfs3 as their default since 5.15:
"All officially supported kernels with versions 5.15 or newer are
built with CONFIG_NTFS3_FS=m and thus support it. Before 5.15,
NTFS read and write support is provided by the NTFS-3G FUSE file
system." (cf. [1]).
It's unmaintained apart from various odd fixes as well. Worst case we
have to reintroduce it if someone really has a valid dependency on it.
But it's worth trying to see whether we can remove it"
Link: https://wiki.archlinux.org/title/NTFS [1]
Link: https://wiki.debian.org/NTFS [2]
* tag 'vfs-6.9.ntfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs: remove NTFS classic from docum. index
fs: Remove NTFS classic
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"Misc features, cleanups, and fixes for vfs and individual filesystems.
Features:
- Support idmapped mounts for hugetlbfs.
- Add RWF_NOAPPEND flag for pwritev2(). This allows us to fix a bug
where the passed offset is ignored if the file is O_APPEND. The new
flag allows a caller to enforce that the offset is honored to
conform to posix even if the file was opened in append mode.
- Move i_mmap_rwsem in struct address_space to avoid false sharing
between i_mmap and i_mmap_rwsem.
- Convert efs, qnx4, and coda to use the new mount api.
- Add a generic is_dot_dotdot() helper that's used by various
filesystems and the VFS code instead of open-coding it multiple
times.
- Recently we've added stable offsets which allows stable ordering
when iterating directories exported through NFS on e.g., tmpfs
filesystems. Originally an xarray was used for the offset map but
that caused slab fragmentation issues over time. This switches the
offset map to the maple tree which has a dense mode that handles
this scenario a lot better. Includes tests.
- Finally merge the case-insensitive improvement series Gabriel has
been working on for a long time. This cleanly propagates case
insensitive operations through ->s_d_op which in turn allows us to
remove the quite ugly generic_set_encrypted_ci_d_ops() operations.
It also improves performance by trying a case-sensitive comparison
first and then fallback to case-insensitive lookup if that fails.
This also fixes a bug where overlayfs would be able to be mounted
over a case insensitive directory which would lead to all sort of
odd behaviors.
Cleanups:
- Make file_dentry() a simple accessor now that ->d_real() is
simplified because of the backing file work we did the last two
cycles.
- Use the dedicated file_mnt_idmap helper in ntfs3.
- Use smp_load_acquire/store_release() in the i_size_read/write
helpers and thus remove the hack to handle i_size reads in the
filemap code.
- The SLAB_MEM_SPREAD is a nop now. Remove it from various places in
fs/
- It's no longer necessary to perform a second built-in initramfs
unpack call because we retain the contents of the previous
extraction. Remove it.
- Now that we have removed various allocators kfree_rcu() always
works with kmem caches and kmalloc(). So simplify various places
that only use an rcu callback in order to handle the kmem cache
case.
- Convert the pipe code to use a lockdep comparison function instead
of open-coding the nesting making lockdep validation easier.
- Move code into fs-writeback.c that was located in a header but can
be made static as it's only used in that one file.
- Rewrite the alignment checking iterators for iovec and bvec to be
easier to read, and also significantly more compact in terms of
generated code. This saves 270 bytes of text on x86-64 (with
clang-18) and 224 bytes on arm64 (with gcc-13). In profiles it also
saves a bit of time for the same workload.
- Switch various places to use KMEM_CACHE instead of
kmem_cache_create().
- Use inode_set_ctime_to_ts() in inode_set_ctime_current()
- Use kzalloc() in name_to_handle_at() to avoid kernel infoleak.
- Various smaller cleanups for eventfds.
Fixes:
- Fix various comments and typos, and unneeded initializations.
- Fix stack allocation hack for clang in the select code.
- Improve dump_mapping() debug code on a best-effort basis.
- Fix build errors in various selftests.
- Avoid wrap-around instrumentation in various places.
- Don't allow user namespaces without an idmapping to be used for
idmapped mounts.
- Fix sysv sb_read() call.
- Fix fallback implementation of the get_name() export operation"
* tag 'vfs-6.9.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (70 commits)
hugetlbfs: support idmapped mounts
qnx4: convert qnx4 to use the new mount api
fs: use inode_set_ctime_to_ts to set inode ctime to current time
libfs: Drop generic_set_encrypted_ci_d_ops
ubifs: Configure dentry operations at dentry-creation time
f2fs: Configure dentry operations at dentry-creation time
ext4: Configure dentry operations at dentry-creation time
libfs: Add helper to choose dentry operations at mount-time
libfs: Merge encrypted_ci_dentry_ops and ci_dentry_ops
fscrypt: Drop d_revalidate once the key is added
fscrypt: Drop d_revalidate for valid dentries during lookup
fscrypt: Factor out a helper to configure the lookup dentry
ovl: Always reject mounting over case-insensitive directories
libfs: Attempt exact-match comparison first during casefolded lookup
efs: remove SLAB_MEM_SPREAD flag usage
jfs: remove SLAB_MEM_SPREAD flag usage
minix: remove SLAB_MEM_SPREAD flag usage
openpromfs: remove SLAB_MEM_SPREAD flag usage
proc: remove SLAB_MEM_SPREAD flag usage
qnx6: remove SLAB_MEM_SPREAD flag usage
...
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit updates from Shuah Khan:
- fix to make kunit_bus_type const
- kunit tool change to Print UML command
- DRM device creation helpers are now using the new kunit device
creation helpers. This change resulted in DRM helpers switching from
using a platform_device, to a dedicated bus and device type used by
kunit. kunit devices don't set DMA mask and this caused regression on
some drm tests as they can't allocate DMA buffers. Fix this problem
by setting DMA masks on the kunit device during initialization.
- KUnit has several macros which accept a log message, which can
contain printf format specifiers. Some of these (the explicit log
macros) already use the __printf() gcc attribute to ensure the format
specifiers are valid, but those which could fail the test, and hence
used __kunit_do_failed_assertion() behind the scenes, did not.
These include: KUNIT_EXPECT_*_MSG(), KUNIT_ASSERT_*_MSG(), and
KUNIT_FAIL()
A nine-patch series adds the __printf() attribute, and fixes all of
the issues uncovered.
* tag 'linux_kselftest-kunit-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: Annotate _MSG assertion variants with gnu printf specifiers
drm: tests: Fix invalid printf format specifiers in KUnit tests
drm/xe/tests: Fix printf format specifiers in xe_migrate test
net: test: Fix printf format specifier in skb_segment kunit test
rtc: test: Fix invalid format specifier.
time: test: Fix incorrect format specifier
lib: memcpy_kunit: Fix an invalid format specifier in an assertion msg
lib/cmdline: Fix an invalid format specifier in an assertion msg
kunit: test: Log the correct filter string in executor_test
kunit: Setup DMA masks on the kunit device
kunit: make kunit_bus_type const
kunit: Mark filter* params as rw
kunit: tool: Print UML command
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest update from Shuah Khan:
- livepatch restructuring to move the module out of lib to be built as
a out-of-tree modules during kselftest build. This makes it easier
change, debug and rebuild the tests by running make on the
selftests/livepatch directory, which is not currently possible since
the modules on lib/livepatch are build and installed using the main
makefile modules target.
- livepatch restructuring fixes for problems found by kernel test
robot. The change skips the test if kernel-devel isn't installed
(default value of KDIR), or if KDIR variable passed doesn't exists.
- resctrl test restructuring and new non-contiguous CBMs CAT test
- new ktap_helpers to print diagnostic messages, pass/fail tests based
on exit code, abort test, and finish the test.
- a new test verify power supply properties.
- a new ftrace to exercise function tracer across cpu hotplug.
- timeout increase for mqueue test to allow the test to run on i3.metal
AWS instances.
- minor spelling corrections in several tests.
- missing gitignore files and changes to existing gitignore files.
* tag 'linux_kselftest-next-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (57 commits)
kselftest: Add basic test for probing the rust sample modules
selftests: lib.mk: Do not process TEST_GEN_MODS_DIR
selftests: livepatch: Avoid running the tests if kernel-devel is missing
selftests: livepatch: Add initial .gitignore
selftests/resctrl: Add non-contiguous CBMs CAT test
selftests/resctrl: Add resource_info_file_exists()
selftests/resctrl: Split validate_resctrl_feature_request()
selftests/resctrl: Add a helper for the non-contiguous test
selftests/resctrl: Add test groups and name L3 CAT test L3_CAT
selftests: sched: Fix spelling mistake "hiearchy" -> "hierarchy"
selftests/mqueue: Set timeout to 180 seconds
selftests/ftrace: Add test to exercize function tracer across cpu hotplug
selftest: ftrace: fix minor typo in log
selftests: thermal: intel: workload_hint: add missing gitignore
selftests: thermal: intel: power_floor: add missing gitignore
selftests: uevent: add missing gitignore
selftests: Add test to verify power supply properties
selftests: ktap_helpers: Add a helper to finish the test
selftests: ktap_helpers: Add a helper to abort the test
selftests: ktap_helpers: Add helper to pass/fail test based on exit code
...
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We already have kprobe and fentry benchmarks. Let's add kretprobe and
fexit ones for completeness.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/20240309005124.3004446-1-andrii@kernel.org
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ioremap_page_range() should be used for ranges within vmalloc range only.
The vmalloc ranges are allocated by get_vm_area(). PCI has "resource"
allocator that manages PCI_IOBASE, IO_SPACE_LIMIT address range, hence
introduce vmap_page_range() to be used exclusively to map pages
in PCI address space.
Fixes: 3e49a866c9dc ("mm: Enforce VM_IOREMAP flag and range in ioremap_page_range.")
Reported-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/bpf/CANiq72ka4rir+RTN2FQoT=Vvprp_Ao-CvoYEkSNqtSY+RZj+AA@mail.gmail.com
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'ras/edac-amd-atl' into edac-updates-for-v6.9
* ras/edac-drivers:
EDAC/i10nm: Add Intel Grand Ridge micro-server support
EDAC/igen6: Add one more Intel Alder Lake-N SoC support
* ras/edac-misc:
EDAC/versal: Convert to platform remove callback returning void
EDAC/versal: Make the bit position of injected errors configurable
EDAC/synopsys: Convert to devm_platform_ioremap_resource()
* ras/edac-amd-atl:
RAS/AMD/FMPM: Fix off by one when unwinding on error
RAS/AMD/FMPM: Add debugfs interface to print record entries
RAS/AMD/FMPM: Save SPA values
RAS: Export helper to get ras_debugfs_dir
RAS/AMD/ATL: Fix bit overflow in denorm_addr_df4_np2()
RAS: Introduce a FRU memory poison manager
RAS/AMD/ATL: Add MI300 row retirement support
Documentation: Move RAS section to admin-guide
RAS/AMD/ATL: Add MI300 DRAM to normalized address translation support
RAS/AMD/ATL: Fix array overflow in get_logical_coh_st_fabric_id_mi300()
RAS/AMD/ATL: Add MI300 support
Documentation: RAS: Add index and address translation section
EDAC/amd64: Use new AMD Address Translation Library
RAS: Introduce AMD Address Translation Library
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm into pm
Merge OPP (operating performance points) updates for 6.9 from Viresh
Kumar:
"- Fix couple of warnings related to W=1 builds. (Viresh Kumar).
- Move Move dev_pm_opp_{init|free}_cpufreq_table() to pm_opp.h (Viresh Kumar).
- Extend dev_pm_opp_data with turbo support (Sibi Sankar).
- dt-bindings: drop maxItems from inner items (David Heidelberg)."
* tag 'opp-updates-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
dt-bindings: opp: drop maxItems from inner items
OPP: debugfs: Fix warning around icc_get_name()
OPP: debugfs: Fix warning with W=1 builds
cpufreq: Move dev_pm_opp_{init|free}_cpufreq_table() to pm_opp.h
OPP: Extend dev_pm_opp_data with turbo support
|
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Merge Enery Model changes for 6.9-rc1:
- Allow the Energy Model to be updated dynamically (Lukasz Luba).
* pm-em: (24 commits)
PM: EM: Fix nr_states warnings in static checks
Documentation: EM: Update with runtime modification design
PM: EM: Add em_dev_compute_costs()
PM: EM: Remove old table
PM: EM: Change debugfs configuration to use runtime EM table data
drivers/thermal/devfreq_cooling: Use new Energy Model interface
drivers/thermal/cpufreq_cooling: Use new Energy Model interface
powercap/dtpm_devfreq: Use new Energy Model interface to get table
powercap/dtpm_cpu: Use new Energy Model interface to get table
PM: EM: Optimize em_cpu_energy() and remove division
PM: EM: Support late CPUs booting and capacity adjustment
PM: EM: Add performance field to struct em_perf_state and optimize
PM: EM: Add em_perf_state_from_pd() to get performance states table
PM: EM: Introduce em_dev_update_perf_domain() for EM updates
PM: EM: Add functions for memory allocations for new EM tables
PM: EM: Use runtime modified EM for CPUs energy estimation in EAS
PM: EM: Introduce runtime modifiable table
PM: EM: Split the allocation and initialization of the EM table
PM: EM: Check if the get_cost() callback is present in em_compute_costs()
PM: EM: Introduce em_compute_costs()
...
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Merge power capping changes and power management utilities updates for
6.9-rc1:
- Address multiple issues in the TPMI RAPL driver and add support for
new platforms (Lunar Lake-M, Arrow Lake) to Intel RAPL (Zhang Rui).
- Fix freq_qos_add_request() return value check in dtpm_cpu (Daniel
Lezcano).
- Fix kernel-doc for dtpm_create_hierarchy() (Yang Li).
- Fix file leak in get_pkg_num() in x86_energy_perf_policy (Samasth
Norway Ananda).
- Fix cpupower-frequency-info.1 man page typo (Jan Kratochvil).
* pm-powercap:
powercap: dtpm: Fix kernel-doc for dtpm_create_hierarchy() function
powercap: dtpm_cpu: Fix error check against freq_qos_add_request()
powercap: intel_rapl: Add support for Arrow Lake
powercap: intel_rapl: Add support for Lunar Lake-M paltform
powercap: intel_rapl_tpmi: Fix System Domain probing
powercap: intel_rapl_tpmi: Fix a register bug
powercap: intel_rapl: Fix locking in TPMI RAPL
powercap: intel_rapl: Fix a NULL pointer dereference
* pm-tools:
Fix cpupower-frequency-info.1 man page typo
tools/power x86_energy_perf_policy: Fix file leak in get_pkg_num()
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Merge cpuidle updates for 6.9-rc1:
- Prevent the haltpoll cpuidle governor from shrinking guest
poll_limit_ns below grow_start (Parshuram Sangle).
- Avoid potential overflow in integer multiplication when computing
cpuidle state parameters (C Cheng).
- Adjust MWAIT hint target C-state computation in the ACPI cpuidle
driver and in intel_idle to return a correct value for C0 (He
Rongguang).
* pm-cpuidle:
cpuidle: ACPI/intel: fix MWAIT hint target C-state computation
cpuidle: Avoid potential overflow in integer multiplication
cpuidle: haltpoll: do not shrink guest poll_limit_ns below grow_start
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Merge cpufreq changes for 6.9-rc1:
- Enable preferred core support in the amd-pstate cpufreq driver (Meng
Li).
- Fix min_perf assignment in amd_pstate_adjust_perf() and make the
min/max limit perf values in amd-pstate always stay within the
(highest perf, lowest perf) range (Tor Vic, Meng Li).
- Change default transition delay in cpufreq to 2ms (Qais Yousef).
- Drop long-unused cpudata::prev_cummulative_iowait from the
intel_pstate cpufreq driver (Jiri Slaby).
- Allow intel_pstate to assign model-specific values to strings used in
the EPP sysfs interface and make it do so on Meteor Lake (Srinivas
Pandruvada).
- Remove references to 10ms minimum sampling rate from comments in the
cpufreq code (Pierre Gondois).
- Prevent scaling_cur_freq from exceeding scaling_max_freq when the
latter is an inefficient frequency (Shivnandan Kumar).
- Honour transition_latency over transition_delay_us in cpufreq (Qais
Yousef).
- Stop unregistering cpufreq cooling on CPU hot-remove (Viresh Kumar).
- General enhancements / cleanups to ARM cpufreq drivers (tianyu2,
Nícolas F. R. A. Prado, Erick Archer, Arnd Bergmann, Anastasia
Belova).
- Update cpufreq-dt-platdev to block/approve devices (Richard Acayan).
- Make the SCMI cpufreq driver get a transition delay value from
firmware (Pierre Gondois).
* pm-cpufreq: (28 commits)
cpufreq: scmi: Set transition_delay_us
firmware: arm_scmi: Populate fast channel rate_limit
firmware: arm_scmi: Populate perf commands rate_limit
cpufreq: Don't unregister cpufreq cooling on CPU hotplug
cpufreq: Honour transition_latency over transition_delay_us
cpufreq: Limit resolving a frequency to policy min/max
cpufreq: amd-pstate: adjust min/max limit perf
cpufreq: Remove references to 10ms min sampling rate
cpufreq: intel_pstate: Update default EPPs for Meteor Lake
cpufreq: intel_pstate: Allow model specific EPPs
cpufreq: qcom-hw: add CONFIG_COMMON_CLK dependency
cpufreq: dt-platdev: block SDM670 in cpufreq-dt-platdev
cpufreq: intel_pstate: remove cpudata::prev_cummulative_iowait
cpufreq: Change default transition delay to 2ms
cpufreq: amd-pstate: Fix min_perf assignment in amd_pstate_adjust_perf()
Documentation: PM: amd-pstate: Fix section title underline
Documentation: introduce amd-pstate preferrd core mode kernel command line options
Documentation: amd-pstate: introduce amd-pstate preferred core
cpufreq: amd-pstate: Update amd-pstate preferred core ranking dynamically
ACPI: cpufreq: Add highest perf change notification
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Merge ARM cpufreq updates for 6.9 from Viresh Kumar:
"- General enhancements / cleanups to cpufreq drivers (tianyu2, Nícolas
F. R. A. Prado, Erick Archer, Arnd Bergmann, Anastasia Belova).
- Update cpufreq-dt-platdev to block/approve devices (Richard Acayan).
- scmi: get transition delay from firmware (Pierre Gondois)."
* tag 'cpufreq-arm-updates-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
cpufreq: scmi: Set transition_delay_us
firmware: arm_scmi: Populate fast channel rate_limit
firmware: arm_scmi: Populate perf commands rate_limit
cpufreq: qcom-hw: add CONFIG_COMMON_CLK dependency
cpufreq: dt-platdev: block SDM670 in cpufreq-dt-platdev
cpufreq: mediatek-hw: Don't error out if supply is not found
Documentation: power: Use kcalloc() instead of kzalloc()
cpufreq: mediatek-hw: Wait for CPU supplies before probing
cpufreq: brcmstb-avs-cpufreq: add check for cpufreq_cpu_get's return value
cpufreq: imx6: use regmap to read ocotp register
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Merge changes related to the runtime power management of devices for
6.9-rc1:
- Simplify pm_runtime_get_if_active() usage and add a replacement for
pm_runtime_put_autosuspend() (Sakari Ailus).
- Add a tracepoint for runtime_status changes tracking (Vilas Bhat).
- Fix section title markdown in the runtime PM documentation (Yiwei
Lin).
* pm-runtime:
Documentation: PM: Fix runtime_pm.rst markdown syntax
PM: runtime: add tracepoint for runtime_status changes
PM: runtime: Add pm_runtime_put_autosuspend() replacement
PM: runtime: Simplify pm_runtime_get_if_active() usage
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Merge changes related to system-wide power management for 6.9-rc1:
- Fix and clean up system suspend statistics collection (Rafael
Wysocki).
- Simplify device suspend and resume handling in the power management
core code (Rafael Wysocki).
- Add support for LZ4 compression algorithm to the hibernation image
creation and loading code (Nikhil V).
- Fix PCI hibernation support description (Yiwei Lin).
- Make hibernation take set_memory_ro() return values into account as
appropriate (Christophe Leroy).
- Set mem_sleep_current during kernel command line setup to avoid an
ordering issue with handling it (Maulik Shah).
- Fix wake IRQs handling when pm_runtime_force_suspend() is used as a
driver's system suspend callback (Qingliang Li).
* pm-sleep: (21 commits)
PM: sleep: wakeirq: fix wake irq warning in system suspend
PM: suspend: Set mem_sleep_current during kernel command line setup
PM: hibernate: Don't ignore return from set_memory_ro()
PM: hibernate: Support to select compression algorithm
Documentation: PM: Fix PCI hibernation support description
PM: hibernate: Add support for LZ4 compression for hibernation
PM: hibernate: Move to crypto APIs for LZO compression
PM: hibernate: Rename lzo* to make it generic
PM: sleep: Call dpm_async_fn() directly in each suspend phase
PM: sleep: Move devices to new lists earlier in each suspend phase
PM: sleep: Move some assignments from under a lock
PM: sleep: stats: Log errors right after running suspend callbacks
PM: sleep: stats: Use locking in dpm_save_failed_dev()
PM: sleep: stats: Call dpm_save_failed_step() at most once per phase
PM: sleep: stats: Define suspend_stats next to the code using it
PM: sleep: stats: Use unsigned int for success and failure counters
PM: sleep: stats: Use an array of step failure counters
PM: sleep: stats: Use array of suspend step names
PM: sleep: Relocate two device PM core functions
PM: sleep: Simplify dpm_suspended_list walk in dpm_resume()
...
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|
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Merge x86-specific ACPI changes, an ACPI backlight driver change, ACPI
APEI change and miscellaneous ACPI-related changes for 6.9-rc1:
- Add DELL0501 handling to acpi_quirk_skip_serdev_enumeration() and
make that function generic (Hans de Goede).
- Make the ACPI backlight code handle fetching EDID that is longer than
256 bytes (Mario Limonciello).
- Skip initialization of GHES_ASSIST structures for Machine Check
Architecture in APEI (Avadhut Naik).
- Convert several plaform drivers in the ACPI subsystem to using a
remove callback that returns void (Uwe Kleine-König).
- Drop the long-deprecated custom_method debugfs interface that is
problematic from the security standpoint (Rafael Wysocki).
- Use %pe in a couple of places in the ACPI code for easier error
decoding (Onkarnath).
* acpi-x86:
ACPI: x86: Add DELL0501 handling to acpi_quirk_skip_serdev_enumeration()
ACPI: x86: Move acpi_quirk_skip_serdev_enumeration() out of CONFIG_X86_ANDROID_TABLETS
* acpi-video:
ACPI: video: Handle fetching EDID that is longer than 256 bytes
* acpi-apei:
ACPI: APEI: Skip initialization of GHES_ASSIST structures for Machine Check Architecture
ACPI: APEI: GHES: Convert to platform remove callback returning void
* acpi-misc:
ACPI: pfr_update: Convert to platform remove callback returning void
ACPI: pfr_telemetry: Convert to platform remove callback returning void
ACPI: fan: Convert to platform remove callback returning void
ACPI: GED: Convert to platform remove callback returning void
ACPI: DPTF: Convert to platform remove callback returning void
ACPI: AGDI: Convert to platform remove callback returning void
ACPI: TAD: Convert to platform remove callback returning void
ACPI: Drop the custom_method debugfs interface
ACPI: use %pe for better readability of errors while printing
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'acpi-thermal'
Merge ACPI tables parsing change, ACPI processor driver change, ACPI
device properties handling changes and an ACPI thermal code change for
6.9-rc1:
- Make the NFIT parsing code use acpi_evaluate_dsm_typed() (Andy
Shevchenko).
- Fix a memory leak in acpi_processor_power_exit() (Armin Wolf).
- Make it possible to quirk the CSI-2 and MIPI DisCo for Imaging
properties parsing and add a quirk for Dell XPS 9315 (Sakari Ailus).
- Prevent false-positive static checker warnings from triggering by
intializing some variables in the ACPI thermal code to zero (Colin
Ian King).
* acpi-tables:
ACPI: NFIT: Switch to use acpi_evaluate_dsm_typed()
* acpi-processor:
ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()
* acpi-property:
ACPI: property: Polish ignoring bad data nodes
ACPI: property: Ignore bad graph port nodes on Dell XPS 9315
ACPI: utils: Make acpi_handle_path() not static
* acpi-thermal:
ACPI: thermal_lib: Initialize temp_decik to zero
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Merge ACPI device enumeration and bus type changes, ACPI power
management changes and ACPI IRQ override handling quirks for 6.9-rc1:
- Rearrange Device Check and Bus Check notification handling in the
ACPI device hotplug code to make it get the "enabled" _STA bit into
account (Rafael Wysocki).
- Modify acpi_processor_add() to skip processors with the "enabled"
_STA bit clear, as per the specification (Rafael Wysocki).
- Stop failing Device Check notification handling without a valid
reason (Rafael Wysocki).
- Defer enumeration of devices that depend on a device with an ACPI
device ID equalt to INTC10CF to address probe ordering issues on
some platforms (Wentong Wu).
- Constify acpi_bus_type (Ricardo Marliere).
- Make the ACPI-specific suspend-to-idle code take the Low-Power S0
Idle MSFT UUID into account on non-AMD systems (Rafael Wysocki).
- Add ACPI IRQ override quirks for some new platforms (Sergey
Kalinichev, Maxim Kudinov, Alexey Froloff, Sviatoslav Harasymchuk,
Nicolas Haye).
* acpi-scan:
ACPI: scan: Consolidate Device Check and Bus Check notification handling
ACPI: scan: Rework Device Check and Bus Check notification handling
ACPI: scan: Make acpi_processor_add() check the device enabled bit
ACPI: scan: Relocate acpi_bus_trim_one()
ACPI: scan: Fix device check notification handling
ACPI: scan: Defer enumeration of devices with a _DEP pointing to IVSC device
* acpi-bus:
ACPI: bus: make acpi_bus_type const
* acpi-pm:
ACPI: PM: s2idle: Enable Low-Power S0 Idle MSFT UUID for non-AMD systems
* acpi-resource:
ACPI: resource: Use IRQ override on Maibenben X565
ACPI: resource: Add MAIBENBEN X577 to irq1_edge_low_force_override
ACPI: resource: Do IRQ override on Lunnen Ground laptops
ACPI: resource: Add IRQ override quirk for ASUS ExpertBook B2502FBA
ACPI: resource: Skip IRQ override on ASUS ExpertBook B1502CVA
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Jason Xing says:
====================
annotate data-races around sysctl_tcp_wmem[0]
Adding simple READ_ONCE() can avoid reading the sysctl knob meanwhile
someone is trying to change it.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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When reading wmem[0], it could be changed concurrently without
READ_ONCE() protection. So add one annotation here.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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It's possible that writer and the reader can manipulate the same
sysctl knob concurrently. Using READ_ONCE() to prevent reading
an old value.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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Running the page-pool sample on production machines under moderate
networking load shows recycling rate higher than 100%:
$ page-pool
eth0[2] page pools: 14 (zombies: 0)
refs: 89088 bytes: 364904448 (refs: 0 bytes: 0)
recycling: 100.3% (alloc: 1392:2290247724 recycle: 469289484:1828235386)
Note that outstanding refs (89088) == slow alloc * cache size (1392 * 64)
which means this machine is recycling page pool pages perfectly, not
a single page has been released.
The extra 0.3% is because sample ignores allocations from the ptr_ring.
Treat those the same as alloc_fast, the ring vs cache alloc is
already captured accurately enough by recycling stats.
With the fix:
$ page-pool
eth0[2] page pools: 14 (zombies: 0)
refs: 89088 bytes: 364904448 (refs: 0 bytes: 0)
recycling: 100.0% (alloc: 1392:2331141604 recycle: 473625579:1857460661)
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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The seg-led-gpio driver uses symbols from the linedisp namespace. Ensure
these are imported.
Fixes: 899383f9ecf5 ("auxdisplay: Add 7-segment LED display driver")
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Closes: https://lore.kernel.org/r/202403100401.IDre04gu-lkp@intel.com/
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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After commits ca065d0cf80f ("udp: no longer use SLAB_DESTROY_BY_RCU")
and 7ae215d23c12 ("bpf: Don't refcount LISTEN sockets in sk_assign()")
UDP early demux no longer need to grab a refcount on the UDP socket.
This save two atomic operations per incoming packet for connected
sockets.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Joe Stringer <joe@wand.net.nz>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
Cc: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Gavrilov Ilia says:
====================
fix incorrect parameter validation in the *_get_sockopt() functions
This v2 series fix incorrent parameter validation in *_get_sockopt()
functions in several places.
version 2 changes:
- reword the patch description
- add two patches for net/kcm and net/x25
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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The 'len' variable can't be negative when assigned the result of
'min_t' because all 'min_t' parameters are cast to unsigned int,
and then the minimum one is chosen.
To fix the logic, check 'len' as read from 'optlen',
where the types of relevant variables are (signed) int.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The 'len' variable can't be negative when assigned the result of
'min_t' because all 'min_t' parameters are cast to unsigned int,
and then the minimum one is chosen.
To fix the logic, check 'len' as read from 'optlen',
where the types of relevant variables are (signed) int.
Fixes: ab7ac4eb9832 ("kcm: Kernel Connection Multiplexor module")
Signed-off-by: Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The 'len' variable can't be negative when assigned the result of
'min_t' because all 'min_t' parameters are cast to unsigned int,
and then the minimum one is chosen.
To fix the logic, check 'len' as read from 'optlen',
where the types of relevant variables are (signed) int.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The 'len' variable can't be negative when assigned the result of
'min_t' because all 'min_t' parameters are cast to unsigned int,
and then the minimum one is chosen.
To fix the logic, check 'len' as read from 'optlen',
where the types of relevant variables are (signed) int.
Fixes: 3557baabf280 ("[L2TP]: PPP over L2TP driver core")
Reviewed-by: Tom Parkin <tparkin@katalix.com>
Signed-off-by: Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The 'olr' variable can't be negative when assigned the result of
'min_t' because all 'min_t' parameters are cast to unsigned int,
and then the minimum one is chosen.
To fix the logic, check 'olr' as read from 'optlen',
where the types of relevant variables are (signed) int.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
The 'len' variable can't be negative when assigned the result of
'min_t' because all 'min_t' parameters are cast to unsigned int,
and then the minimum one is chosen.
To fix the logic, check 'len' as read from 'optlen',
where the types of relevant variables are (signed) int.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Gavrilov Ilia <Ilia.Gavrilov@infotecs.ru>
Reviewed-by: Jason Xing <kerneljasonxing@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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Herve Codina says:
====================
Add support for QMC HDLC
This series introduces the QMC HDLC support.
Patches were previously sent as part of a full feature series and were
previously reviewed in that context:
"Add support for QMC HDLC, framer infrastructure and PEF2256 framer" [1]
In order to ease the merge, the full feature series has been split and
needed parts were merged in v6.8-rc1:
- "Prepare the PowerQUICC QMC and TSA for the HDLC QMC driver" [2]
- "Add support for framer infrastructure and PEF2256 framer" [3]
This series contains patches related to the QMC HDLC part (QMC HDLC
driver):
- Introduce the QMC HDLC driver (patches 1 and 2)
- Add timeslots change support in QMC HDLC (patch 3)
- Add framer support as a framer consumer in QMC HDLC (patch 4)
Compare to the original full feature series, a modification was done on
patch 3 in order to use a coherent prefix in the commit title.
I kept the patches unsquashed as they were previously sent and reviewed.
Of course, I can squash them if needed.
Compared to the previous iteration:
https://lore.kernel.org/linux-kernel/20240306080726.167338-1-herve.codina@bootlin.com/
this v7 series mainly:
- Rename a variable.
- Fix reverse xmas tree declarations.
- Add 'Acked-by' tag.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
Add framer support in the fsl_qmc_hdlc driver in order to be able to
signal carrier changes to the network stack based on the framer status
Also use this framer to provide information related to the E1/T1 line
interface on IF_GET_IFACE and configure the line interface according to
IF_IFACE_{E1,T1} information.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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QMC channels support runtime timeslots changes but nothing is done at
the QMC HDLC driver to handle these changes.
Use existing IFACE ioctl in order to configure the timeslots to use.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
These helpers scatters or gathers a bitmap with the help of the mask
position bits parameter.
bitmap_scatter() does the following:
src: 0000000001011010
||||||
+------+|||||
| +----+||||
| |+----+|||
| || +-+||
| || | ||
mask: ...v..vv...v..vv
...0..11...0..10
dst: 0000001100000010
and bitmap_gather() performs this one:
mask: ...v..vv...v..vv
src: 0000001100000010
^ ^^ ^ 0
| || | 10
| || > 010
| |+--> 1010
| +--> 11010
+----> 011010
dst: 0000000000011010
bitmap_gather() can the seen as the reverse bitmap_scatter() operation.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/lkml/20230926052007.3917389-3-andriy.shevchenko@linux.intel.com/
Co-developed-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Acked-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
|
After contributing the driver, add myself as the maintainer for the
Freescale QMC HDLC driver.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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The QMC HDLC driver provides support for HDLC using the QMC (QUICC
Multichannel Controller) to transfer the HDLC data.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:
====================
ethtool: ice: Support for RSS settings to GTP
Takeru Hayasaka enables RSS functionality for GTP packets on ice driver
with ethtool.
A user can include TEID and make RSS work for GTP-U over IPv4 by doing the
following:`ethtool -N ens3 rx-flow-hash gtpu4 sde`
In addition to gtpu(4|6), we now support gtpc(4|6),gtpc(4|6)t,gtpu(4|6)e,
gtpu(4|6)u, and gtpu(4|6)d.
gtpc(4|6): Used for GTP-C in IPv4 and IPv6, where the GTP header format does
not include a TEID.
gtpc(4|6)t: Used for GTP-C in IPv4 and IPv6, with a GTP header format that
includes a TEID.
gtpu(4|6): Used for GTP-U in both IPv4 and IPv6 scenarios.
gtpu(4|6)e: Used for GTP-U with extended headers in both IPv4 and IPv6.
gtpu(4|6)u: Used when the PSC (PDU session container) in the GTP-U extended
header includes Uplink, applicable to both IPv4 and IPv6.
gtpu(4|6)d: Used when the PSC in the GTP-U extended header includes Downlink,
for both IPv4 and IPv6.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux into soc/dt
RISC-V Devicetree fixes for v6.8-final
Starfive:
The previous cleanup broke boot on the jh7100 as the driver depended on
the fallback clock name created based on the node-name when
clock-output-names is not present. Add clock-output-names to restore
working order.
Generic:
BUILTIN_DTB has been broken for ages on any platform other than the
nommu Canaan k210 SoC as the first dtb built (in alphanumerical order),
would get built into the image. This didn't get fixed for ages because
nobody actually cared about running it other than the k210 enough to
fix it. The folks doing Sophgo SG2042 development have come along and
fixed it, as they want to use builtin dtbs. linux-boot on that platform
reuses the dtb it was provided by OpenSBI when booting linux proper,
which is unfortunately not possible to boot a mainline kernel with.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
* tag 'riscv-dt-fixes-for-v6.8-final' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux:
riscv: dts: Move BUILTIN_DTB_SOURCE to common Kconfig
riscv: dts: starfive: jh7100: fix root clock names
Link: https://lore.kernel.org/r/20240306-waltz-facial-9e4e1b792053@spud
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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With recent changes within matrix dimensions calculation,
dropping maxItems: 1 provides a warning-free run.
Fixes warning such as:
arch/arm64/boot/dts/qcom/sdm845-oneplus-enchilada.dtb: opp-table: opp-200000000:opp-hz:0: [200000000, 0, 0, 150000000, 0, 0, 0, 0, 300000000] is too long
Fixes: 3cb16ad69bef ("dt-bindings: opp: accept array of frequencies")
Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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If the kernel isn't built with interconnect support, icc_get_name()
returns NULL and we get following warning:
drivers/opp/debugfs.c: In function 'bw_name_read':
drivers/opp/debugfs.c:43:42: error: '%.62s' directive argument is null [-Werror=format-overflow=]
i = scnprintf(buf, sizeof(buf), "%.62s\n", icc_get_name(path));
Fix it.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402141313.81ltVF5g-lkp@intel.com/
Fixes: 0430b1d5704b0 ("opp: Expose bandwidth information via debugfs")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
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We currently get the following warning:
debugfs.c:105:54: error: '%d' directive output may be truncated writing between 1 and 11 bytes into a region of size 8 [-Werror=format-truncation=]
snprintf(name, sizeof(name), "supply-%d", i);
^~
debugfs.c:105:46: note: directive argument in the range [-2147483644, 2147483646]
snprintf(name, sizeof(name), "supply-%d", i);
^~~~~~~~~~~
debugfs.c:105:17: note: 'snprintf' output between 9 and 19 bytes into a destination of size 15
snprintf(name, sizeof(name), "supply-%d", i);
Fix this and other potential issues it by allocating larger arrays.
Use the exact string format to allocate the arrays without getting into
these issues again.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202402141313.81ltVF5g-lkp@intel.com/
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
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Move the declaration of functions defined in the OPP core to pm_opp.h.
These were added to cpufreq.h as it was the only user of the APIs, but
that was a mistake perhaps. Fix it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Let's extend the dev_pm_opp_data with a turbo variable, to allow users to
specify if it's a boost frequency for a dynamically added OPP.
Signed-off-by: Sibi Sankar <quic_sibis@quicinc.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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