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We will support arbitrary SYN Cookie with BPF.
If BPF prog validates ACK and kfunc allocates a reqsk, it will
be carried to TCP stack as skb->sk with req->syncookie 1.
In skb_steal_sock(), we need to check inet_reqsk(sk)->syncookie
to see if the reqsk is created by kfunc. However, inet_reqsk()
is not available in sock.h.
Let's move skb_steal_sock() to request_sock.h.
While at it, we refactor skb_steal_sock() so it returns early if
skb->sk is NULL to minimise the following patch.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20240115205514.68364-3-kuniyu@amazon.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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We will support arbitrary SYN Cookie with BPF.
When BPF prog validates ACK and kfunc allocates a reqsk, we need
to call tcp_ns_to_ts() to calculate an offset of TSval for later
use:
time
t0 : Send SYN+ACK
-> tsval = Initial TSval (Random Number)
t1 : Recv ACK of 3WHS
-> tsoff = TSecr - tcp_ns_to_ts(usec_ts_ok, tcp_clock_ns())
= Initial TSval - t1
t2 : Send ACK
-> tsval = t2 + tsoff
= Initial TSval + (t2 - t1)
= Initial TSval + Time Delta (x)
(x) Note that the time delta does not include the initial RTT
from t0 to t1.
Let's move tcp_ns_to_ts() to tcp.h.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20240115205514.68364-2-kuniyu@amazon.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Adjust the check in bpf_get_spilled_reg to take into account spilled
registers narrower than 64 bits. That allows find_equal_scalars to
properly adjust the range of all spilled registers that have the same
ID. Before this change, it was possible for a register and a spilled
register to have the same IDs but different ranges if the spill was
narrower than 64 bits and a range check was performed on the register.
Signed-off-by: Maxim Mikityanskiy <maxim@isovalent.com>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20240108205209.838365-5-maxtram95@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Add ability to iterate multiple decl_tag types pointed to the same
function argument. Use this to support multiple __arg_xxx tags per
global subprog argument.
We leave btf_find_decl_tag_value() intact, but change its implementation
to use a new btf_find_next_decl_tag() which can be straightforwardly
used to find next BTF type ID of a matching btf_decl_tag type.
btf_prepare_func_args() is switched from btf_find_decl_tag_value() to
btf_find_next_decl_tag() to gain multiple tags per argument support.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20240105000909.2818934-5-andrii@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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The motivation of inlining bpf_kptr_xchg() comes from the performance
profiling of bpf memory allocator benchmark. The benchmark uses
bpf_kptr_xchg() to stash the allocated objects and to pop the stashed
objects for free. After inling bpf_kptr_xchg(), the performance for
object free on 8-CPUs VM increases about 2%~10%. The inline also has
downside: both the kasan and kcsan checks on the pointer will be
unavailable.
bpf_kptr_xchg() can be inlined by converting the calling of
bpf_kptr_xchg() into an atomic_xchg() instruction. But the conversion
depends on two conditions:
1) JIT backend supports atomic_xchg() on pointer-sized word
2) For the specific arch, the implementation of xchg is the same as
atomic_xchg() on pointer-sized words.
It seems most 64-bit JIT backends satisfies these two conditions. But
as a precaution, defining a weak function bpf_jit_supports_ptr_xchg()
to state whether such conversion is safe and only supporting inline for
64-bit host.
For x86-64, it supports BPF_XCHG atomic operation and both xchg() and
atomic_xchg() use arch_xchg() to implement the exchange, so enabling the
inline of bpf_kptr_xchg() on x86-64 first.
Reviewed-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20240105104819.3916743-2-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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The URL in question 404 now, fix it up (and switch to github).
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/b7babeb9c5b14af9189f0d6225673e6e9a8f4ad3.1704855496.git.senozhatsky@chromium.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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GCC is expected to implement this feature in version 15,
so bump the version.
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/e1c27b64ae7abe2ebe647be11b71cf1bca84f677.1704855495.git.senozhatsky@chromium.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/cel/linux
Merge exportfs fixes from Chuck Lever:
* tag 'exportfs-6.9' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/cel/linux:
fs: Create a generic is_dot_dotdot() utility
exportfs: fix the fallback implementation of the get_name export operation
Link: https://lore.kernel.org/r/BDC2AEB4-7085-4A7C-8DE8-A659FE1DBA6A@oracle.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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The host and target use two definition of aer type, unify
them into a single one.
Signed-off-by: Guixin Liu <kanie@linux.alibaba.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>
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De-duplicate the same functionality in several places by hoisting
the is_dot_dotdot() utility function into linux/fs.h.
Suggested-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Acked-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
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TCPDIAG_GETSOCK and DCCPDIAG_GETSOCK diag are serialized
on sock_diag_table_mutex.
This is to make sure inet_diag module is not unloaded
while diag was ongoing.
It is time to get rid of this mutex and use RCU protection,
allowing full parallelism.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Following patch is going to use RCU instead of
sock_diag_table_mutex acquisition.
This patch is a preparation, no change of behavior yet.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Following patch is going to use RCU instead of
inet_diag_table_mutex acquisition.
This patch is a preparation, no change of behavior yet.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add constants for Peripheral DMA (PDMA) clocks in CMU_CORE controller:
- PDMA_ACLK: clock for PDMA0 (regular DMA)
- SPDMA_ACLK: clock for PDMA1 (secure DMA)
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20240120012948.8836-2-semen.protsenko@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Add dt-schema documentation for the Connectivity Peripheral 0 (PERIC0)
clock management unit.
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Link: https://lore.kernel.org/r/20240119111132.1290455-2-tudor.ambarus@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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These ones will be needed to make use fo the NN and TP units in the NPUs
based on Vivante IP.
Also fix the number of NN cores in the VIPNano-qi.
Signed-off-by: Tomeu Vizoso <tomeu@tomeuvizoso.net>
Acked-by: Christian Gmeiner <cgmeiner@igalia.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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Enable support for nomodeset= parameter via CONFIG_VIDEO. Both,
DRM and fbdev, already select this option. Remove the existing
option CONFIG_VIDEO_NOMODESET. Simplifies the Kconfig rules.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20240118090721.7995-4-tzimmermann@suse.de
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The function __video_get_options() only exists for compatibility
with old fbdev drivers that cannot be refactored easily. Hide it
behind CONFIG_FB_CORE.
v2:
* support CONFIG_FB_CORE=m via IS_ENABLED() (kernel test robot)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20240118090721.7995-3-tzimmermann@suse.de
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Add CONFIG_VIDEO for common code in drivers/video/. Use the option to
select helpers for the video= parameter. Replaces CONFIG_VIDEO_CMDLINE.
Other common code in drivers/video/ can be moved behind CONFIG_VIDEO,
which will simplify the Kconfig rules.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20240118090721.7995-2-tzimmermann@suse.de
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We would like to use for_each loop for status = "reserved" nodes.
Add for_each_reserved_child_of_node() for it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/87a5pegfau.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Sync to v6.8-rc1.
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
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When afs does a lookup, it tries to use FS.InlineBulkStatus to preemptively
look up a bunch of files in the parent directory and cache this locally, on
the basis that we might want to look at them too (for example if someone
does an ls on a directory, they may want want to then stat every file
listed).
FS.InlineBulkStatus can be considered a compound op with the normal abort
code applying to the compound as a whole. Each status fetch within the
compound is then given its own individual abort code - but assuming no
error that prevents the bulk fetch from returning the compound result will
be 0, even if all the constituent status fetches failed.
At the conclusion of afs_do_lookup(), we should use the abort code from the
appropriate status to determine the error to return, if any - but instead
it is assumed that we were successful if the op as a whole succeeded and we
return an incompletely initialised inode, resulting in ENOENT, no matter
the actual reason. In the particular instance reported, a vnode with no
permission granted to be accessed is being given a UAEACCES abort code
which should be reported as EACCES, but is instead being reported as
ENOENT.
Fix this by abandoning the inode (which will be cleaned up with the op) if
file[1] has an abort code indicated and turn that abort code into an error
instead.
Whilst we're at it, add a tracepoint so that the abort codes of the
individual subrequests of FS.InlineBulkStatus can be logged. At the moment
only the container abort code can be 0.
Fixes: e49c7b2f6de7 ("afs: Build an abstraction around an "operation" concept")
Reported-by: Jeffrey Altman <jaltman@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- zoned mode fixes:
- fix slowdown when writing large file sequentially by looking up
block groups with enough space faster
- locking fixes when activating a zone
- new mount API fixes:
- preserve mount options for a ro/rw mount of the same subvolume
- scrub fixes:
- fix use-after-free in case the chunk length is not aligned to
64K, this does not happen normally but has been reported on
images converted from ext4
- similar alignment check was missing with raid-stripe-tree
- subvolume deletion fixes:
- prevent calling ioctl on already deleted subvolume
- properly track flag tracking a deleted subvolume
- in subpage mode, fix decompression of an inline extent (zlib, lzo,
zstd)
- fix crash when starting writeback on a folio, after integration with
recent MM changes this needs to be started conditionally
- reject unknown flags in defrag ioctl
- error handling, API fixes, minor warning fixes
* tag 'for-6.8-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: scrub: limit RST scrub to chunk boundary
btrfs: scrub: avoid use-after-free when chunk length is not 64K aligned
btrfs: don't unconditionally call folio_start_writeback in subpage
btrfs: use the original mount's mount options for the legacy reconfigure
btrfs: don't warn if discard range is not aligned to sector
btrfs: tree-checker: fix inline ref size in error messages
btrfs: zstd: fix and simplify the inline extent decompression
btrfs: lzo: fix and simplify the inline extent decompression
btrfs: zlib: fix and simplify the inline extent decompression
btrfs: defrag: reject unknown flags of btrfs_ioctl_defrag_range_args
btrfs: avoid copying BTRFS_ROOT_SUBVOL_DEAD flag to snapshot of subvolume being deleted
btrfs: don't abort filesystem when attempting to snapshot deleted subvolume
btrfs: zoned: fix lock ordering in btrfs_zone_activate()
btrfs: fix unbalanced unlock of mapping_tree_lock
btrfs: ref-verify: free ref cache before clearing mount opt
btrfs: fix kvcalloc() arguments order in btrfs_ioctl_send()
btrfs: zoned: optimize hint byte for zoned allocator
btrfs: zoned: factor out prepare_allocation_zoned()
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Currently, both ATA_LPM_UNKNOWN (0) and ATA_LPM_MAX_POWER (1) displays
as "max_performance" in sysfs.
This is quite misleading as they are not the same.
For ATA_LPM_UNKNOWN, ata_eh_set_lpm() will not be called at all,
leaving the configuration in unknown state.
For ATA_LPM_MAX_POWER, ata_eh_set_lpm() is called, and setting the
policy to ATA_LPM_MAX_POWER.
This also matches the description of the SATA_MOBILE_LPM_POLICY Kconfig:
0 => Keep firmware settings
1 => Maximum performance
Thus, update the sysfs description for ATA_LPM_UNKNOWN to match reality.
While at it, update libata.h to mention that the ascii descriptions
are in libata-sata.c and not in libata-scsi.c.
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Niklas Cassel <cassel@kernel.org>
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Aligning the buffer to the L1 cache is not sufficient in some platforms
as they might have larger cacheline sizes for caches after L1 and thus,
we can't guarantee DMA safety.
That was the whole reason to introduce IIO_DMA_MINALIGN in [1]. Do the same
for the sigma_delta ADCs.
[1]: https://lore.kernel.org/linux-iio/20220508175712.647246-2-jic23@kernel.org/
Fixes: 0fb6ee8d0b5e ("iio: ad_sigma_delta: Don't put SPI transfer buffer on the stack")
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240117-dev_sigma_delta_no_irq_flags-v1-1-db39261592cf@analog.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Aligning the buffer to the L1 cache is not sufficient in some platforms
as they might have larger cacheline sizes for caches after L1 and thus,
we can't guarantee DMA safety.
That was the whole reason to introduce IIO_DMA_MINALIGN in [1]. Do the same
for the sigma_delta ADCs.
[1]: https://lore.kernel.org/linux-iio/20220508175712.647246-2-jic23@kernel.org/
Fixes: ccd2b52f4ac6 ("staging:iio: Add common ADIS library")
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240117-adis-improv-v1-1-7f90e9fad200@analog.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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Remove the @major: and @minor: lines to prevent the kernel-doc warnings:
include/media/media-entity.h:376: warning: Excess struct member 'major' description in 'media_entity'
include/media/media-entity.h:376: warning: Excess struct member 'minor' description in 'media_entity'
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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The relatively recently introduced drm/exec utility was using uint32_t
in its interface, which was then also carried over to drm/gpuvm.
Prefer u32 in new code and update drm/exec and drm/gpuvm accordingly.
Cc: Christian König <christian.koenig@amd.com>
Cc: Danilo Krummrich <dakr@redhat.com>
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Danilo Krummrich <dakr@redhat.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240119090557.6360-1-thomas.hellstrom@linux.intel.com
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The wb_wakeup_delayed is only used in fs-writeback.c. Move it to
fs-writeback.c after defination of wb_wakeup and make it static.
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Link: https://lore.kernel.org/r/20240118203339.764093-1-shikemeng@huaweicloud.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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The pwrite function, originally defined by POSIX (thus the "p"), is
defined to ignore O_APPEND and write at the offset passed as its
argument. However, historically Linux honored O_APPEND if set and
ignored the offset. This cannot be changed due to stability policy,
but is documented in the man page as a bug.
Now that there's a pwritev2 syscall providing a superset of the pwrite
functionality that has a flags argument, the conforming behavior can
be offered to userspace via a new flag. Since pwritev2 checks flag
validity (in kiocb_set_rw_flags) and reports unknown ones with
EOPNOTSUPP, callers will not get wrong behavior on old kernels that
don't support the new flag; the error is reported and the caller can
decide how to handle it.
Signed-off-by: Rich Felker <dalias@libc.org>
Link: https://lore.kernel.org/r/20200831153207.GO3265@brightrain.aerifal.cx
Reviewed-by: Jann Horn <jannh@google.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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snd_emux_register() calls pass a string literal as the 'name' parameter.
So kstrdup_const() can be used instead of kfree() to avoid a memory
allocation in such cases.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/9e7b94c852a25ed4be5382e5e48a7dd77e8d4d1a.1705743706.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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DRM_IVPU_PARAM_CONTEXT_PRIORITY has been deprecated because it
has been replaced with DRM_IVPU_JOB_PRIORITY levels set with
submit IOCTL and was unused anyway.
Signed-off-by: Wachowski, Karol <karol.wachowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240115134434.493839-10-jacek.lawrynowicz@linux.intel.com
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The documentation contains notes like
This struct is part of ABI v1 and is deprecated.
Use struct gpio_v2_line_info instead.
This could be interpreted to mean the structs can be directly
substituted in v1 calls. Clarify that the user should use the
corresponding v2 ioctl() and structs.
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Clarify the possible values of event id, rather than requiring the
reader to infer.
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Make documentation more consistent by using trailing periods only for
multi-sentence field descriptions, not single sentence descriptions.
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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The full name of the HTE subsystem is "hardware timestamping engine",
so correct references and highlight that this refers to the HTE
subsystem.
Extend the description of struct gpio_v2_line_event to clarify that
the timestamp_ns is sourced from the HTE if the
GPIO_V2_LINE_FLAG_EVENT_CLOCK_HTE is set.
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Only a successful operation modifies fd fields, but the current
documentation wording could be taken to imply that a positive fd
value after an ioctl() returns indicates a success.
Reword documentation to clarify that the fd is only valid after a
successful operation.
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Now that the driver core can properly handle constant struct bus_type,
move the spi_bus_type variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.
Cc: Mark Brown <broonie@kernel.org>
Cc: <linux-spi@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://msgid.link/r/2024010549-erasure-swoop-1cc6@gregkh
Signed-off-by: Mark Brown <broonie@kernel.org>
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Pull header fix from Kent Overstreet:
"Just one small fixup for the RT build"
* tag 'header_cleanup-2024-01-20' of https://evilpiepirate.org/git/bcachefs:
spinlock: Fix failing build for PREEMPT_RT
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Generic sk_busy_loop_end() only looks at sk->sk_receive_queue
for presence of packets.
Problem is that for UDP sockets after blamed commit, some packets
could be present in another queue: udp_sk(sk)->reader_queue
In some cases, a busy poller could spin until timeout expiration,
even if some packets are available in udp_sk(sk)->reader_queue.
v3: - make sk_busy_loop_end() nicer (Willem)
v2: - add a READ_ONCE(sk->sk_family) in sk_is_inet() to avoid KCSAN splats.
- add a sk_is_inet() check in sk_is_udp() (Willem feedback)
- add a sk_is_inet() check in sk_is_tcp().
Fixes: 2276f58ac589 ("udp: use a separate rx queue for packet reception")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
"New support:
- Loongson LS2X APB DMA controller
- sf-pdma: mpfs-pdma support
- Qualcomm X1E80100 GPI dma controller support
Updates:
- Xilinx XDMA updates to support interleaved DMA transfers
- TI PSIL threads for AM62P and J722S and cfg register regions
description
- axi-dmac Improving the cyclic DMA transfers
- Tegra Support dma-channel-mask property
- Remaining platform remove callback returning void conversions
Driver fixes for:
- Xilinx xdma driver operator precedence and initialization fix
- Excess kernel-doc warning fix in imx-sdma xilinx xdma drivers
- format-overflow warning fix for rz-dmac, sh usb dmac drivers
- 'output may be truncated' fix for shdma, fsl-qdma and dw-edma
drivers"
* tag 'dmaengine-fix-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (58 commits)
dmaengine: dw-edma: increase size of 'name' in debugfs code
dmaengine: fsl-qdma: increase size of 'irq_name'
dmaengine: shdma: increase size of 'dev_id'
dmaengine: xilinx: xdma: Fix kernel-doc warnings
dmaengine: usb-dmac: Avoid format-overflow warning
dmaengine: sh: rz-dmac: Avoid format-overflow warning
dmaengine: imx-sdma: fix Excess kernel-doc warnings
dmaengine: xilinx: xdma: Fix initialization location of desc in xdma_channel_isr()
dmaengine: xilinx: xdma: Fix operator precedence in xdma_prep_interleaved_dma()
dmaengine: xilinx: xdma: statify xdma_prep_interleaved_dma
dmaengine: xilinx: xdma: Workaround truncation compilation error
dmaengine: pl330: issue_pending waits until WFP state
dmaengine: xilinx: xdma: Implement interleaved DMA transfers
dmaengine: xilinx: xdma: Prepare the introduction of interleaved DMA transfers
dmaengine: xilinx: xdma: Add transfer error reporting
dmaengine: xilinx: xdma: Add error checking in xdma_channel_isr()
dmaengine: xilinx: xdma: Rework xdma_terminate_all()
dmaengine: xilinx: xdma: Ease dma_pool alignment requirements
dmaengine: xilinx: xdma: Add necessary macro definitions
dmaengine: xilinx: xdma: Get rid of unused code
...
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt:
- Support for tuning for systems with fast misaligned accesses.
- Support for SBI-based suspend.
- Support for the new SBI debug console extension.
- The T-Head CMOs now use PA-based flushes.
- Support for enabling the V extension in kernel code.
- Optimized IP checksum routines.
- Various ftrace improvements.
- Support for archrandom, which depends on the Zkr extension.
- The build is no longer broken under NET=n, KUNIT=y for ports that
don't define their own ipv6 checksum.
* tag 'riscv-for-linus-6.8-mw4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (56 commits)
lib: checksum: Fix build with CONFIG_NET=n
riscv: lib: Check if output in asm goto supported
riscv: Fix build error on rv32 + XIP
riscv: optimize ELF relocation function in riscv
RISC-V: Implement archrandom when Zkr is available
riscv: Optimize hweight API with Zbb extension
riscv: add dependency among Image(.gz), loader(.bin), and vmlinuz.efi
samples: ftrace: Add RISC-V support for SAMPLE_FTRACE_DIRECT[_MULTI]
riscv: ftrace: Add DYNAMIC_FTRACE_WITH_DIRECT_CALLS support
riscv: ftrace: Make function graph use ftrace directly
riscv: select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY
lib/Kconfig.debug: Update AS_HAS_NON_CONST_LEB128 comment and name
riscv: Restrict DWARF5 when building with LLVM to known working versions
riscv: Hoist linker relaxation disabling logic into Kconfig
kunit: Add tests for csum_ipv6_magic and ip_fast_csum
riscv: Add checksum library
riscv: Add checksum header
riscv: Add static key for misaligned accesses
asm-generic: Improve csum_fold
RISC-V: selftests: cbo: Ensure asm operands match constraints
...
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syzbot reported an uninit-value bug below. [0]
llc supports ETH_P_802_2 (0x0004) and used to support ETH_P_TR_802_2
(0x0011), and syzbot abused the latter to trigger the bug.
write$tun(r0, &(0x7f0000000040)={@val={0x0, 0x11}, @val, @mpls={[], @llc={@snap={0xaa, 0x1, ')', "90e5dd"}}}}, 0x16)
llc_conn_handler() initialises local variables {saddr,daddr}.mac
based on skb in llc_pdu_decode_sa()/llc_pdu_decode_da() and passes
them to __llc_lookup().
However, the initialisation is done only when skb->protocol is
htons(ETH_P_802_2), otherwise, __llc_lookup_established() and
__llc_lookup_listener() will read garbage.
The missing initialisation existed prior to commit 211ed865108e
("net: delete all instances of special processing for token ring").
It removed the part to kick out the token ring stuff but forgot to
close the door allowing ETH_P_TR_802_2 packets to sneak into llc_rcv().
Let's remove llc_tr_packet_type and complete the deprecation.
[0]:
BUG: KMSAN: uninit-value in __llc_lookup_established+0xe9d/0xf90
__llc_lookup_established+0xe9d/0xf90
__llc_lookup net/llc/llc_conn.c:611 [inline]
llc_conn_handler+0x4bd/0x1360 net/llc/llc_conn.c:791
llc_rcv+0xfbb/0x14a0 net/llc/llc_input.c:206
__netif_receive_skb_one_core net/core/dev.c:5527 [inline]
__netif_receive_skb+0x1a6/0x5a0 net/core/dev.c:5641
netif_receive_skb_internal net/core/dev.c:5727 [inline]
netif_receive_skb+0x58/0x660 net/core/dev.c:5786
tun_rx_batched+0x3ee/0x980 drivers/net/tun.c:1555
tun_get_user+0x53af/0x66d0 drivers/net/tun.c:2002
tun_chr_write_iter+0x3af/0x5d0 drivers/net/tun.c:2048
call_write_iter include/linux/fs.h:2020 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x8ef/0x1490 fs/read_write.c:584
ksys_write+0x20f/0x4c0 fs/read_write.c:637
__do_sys_write fs/read_write.c:649 [inline]
__se_sys_write fs/read_write.c:646 [inline]
__x64_sys_write+0x93/0xd0 fs/read_write.c:646
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
Local variable daddr created at:
llc_conn_handler+0x53/0x1360 net/llc/llc_conn.c:783
llc_rcv+0xfbb/0x14a0 net/llc/llc_input.c:206
CPU: 1 PID: 5004 Comm: syz-executor994 Not tainted 6.6.0-syzkaller-14500-g1c41041124bd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
Fixes: 211ed865108e ("net: delete all instances of special processing for token ring")
Reported-by: syzbot+b5ad66046b913bc04c6f@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=b5ad66046b913bc04c6f
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20240119015515.61898-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When I run syz's reproduction C program locally, it causes the following
issue:
pvqspinlock: lock 0xffff9d181cd5c660 has corrupted value 0x0!
WARNING: CPU: 19 PID: 21160 at __pv_queued_spin_unlock_slowpath (kernel/locking/qspinlock_paravirt.h:508)
Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
RIP: 0010:__pv_queued_spin_unlock_slowpath (kernel/locking/qspinlock_paravirt.h:508)
Code: 73 56 3a ff 90 c3 cc cc cc cc 8b 05 bb 1f 48 01 85 c0 74 05 c3 cc cc cc cc 8b 17 48 89 fe 48 c7 c7
30 20 ce 8f e8 ad 56 42 ff <0f> 0b c3 cc cc cc cc 0f 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffa8d200604cb8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff9d1ef60e0908
RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff9d1ef60e0900
RBP: ffff9d181cd5c280 R08: 0000000000000000 R09: 00000000ffff7fff
R10: ffffa8d200604b68 R11: ffffffff907dcdc8 R12: 0000000000000000
R13: ffff9d181cd5c660 R14: ffff9d1813a3f330 R15: 0000000000001000
FS: 00007fa110184640(0000) GS:ffff9d1ef60c0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 000000011f65e000 CR4: 00000000000006f0
Call Trace:
<IRQ>
_raw_spin_unlock (kernel/locking/spinlock.c:186)
inet_csk_reqsk_queue_add (net/ipv4/inet_connection_sock.c:1321)
inet_csk_complete_hashdance (net/ipv4/inet_connection_sock.c:1358)
tcp_check_req (net/ipv4/tcp_minisocks.c:868)
tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2260)
ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205)
ip_local_deliver_finish (net/ipv4/ip_input.c:234)
__netif_receive_skb_one_core (net/core/dev.c:5529)
process_backlog (./include/linux/rcupdate.h:779)
__napi_poll (net/core/dev.c:6533)
net_rx_action (net/core/dev.c:6604)
__do_softirq (./arch/x86/include/asm/jump_label.h:27)
do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
</IRQ>
<TASK>
__local_bh_enable_ip (kernel/softirq.c:381)
__dev_queue_xmit (net/core/dev.c:4374)
ip_finish_output2 (./include/net/neighbour.h:540 net/ipv4/ip_output.c:235)
__ip_queue_xmit (net/ipv4/ip_output.c:535)
__tcp_transmit_skb (net/ipv4/tcp_output.c:1462)
tcp_rcv_synsent_state_process (net/ipv4/tcp_input.c:6469)
tcp_rcv_state_process (net/ipv4/tcp_input.c:6657)
tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1929)
__release_sock (./include/net/sock.h:1121 net/core/sock.c:2968)
release_sock (net/core/sock.c:3536)
inet_wait_for_connect (net/ipv4/af_inet.c:609)
__inet_stream_connect (net/ipv4/af_inet.c:702)
inet_stream_connect (net/ipv4/af_inet.c:748)
__sys_connect (./include/linux/file.h:45 net/socket.c:2064)
__x64_sys_connect (net/socket.c:2073 net/socket.c:2070 net/socket.c:2070)
do_syscall_64 (arch/x86/entry/common.c:51 arch/x86/entry/common.c:82)
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
RIP: 0033:0x7fa10ff05a3d
Code: 5b 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89
c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ab a3 0e 00 f7 d8 64 89 01 48
RSP: 002b:00007fa110183de8 EFLAGS: 00000202 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 0000000020000054 RCX: 00007fa10ff05a3d
RDX: 000000000000001c RSI: 0000000020000040 RDI: 0000000000000003
RBP: 00007fa110183e20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00007fa110184640
R13: 0000000000000000 R14: 00007fa10fe8b060 R15: 00007fff73e23b20
</TASK>
The issue triggering process is analyzed as follows:
Thread A Thread B
tcp_v4_rcv //receive ack TCP packet inet_shutdown
tcp_check_req tcp_disconnect //disconnect sock
... tcp_set_state(sk, TCP_CLOSE)
inet_csk_complete_hashdance ...
inet_csk_reqsk_queue_add inet_listen //start listen
spin_lock(&queue->rskq_lock) inet_csk_listen_start
... reqsk_queue_alloc
... spin_lock_init
spin_unlock(&queue->rskq_lock) //warning
When the socket receives the ACK packet during the three-way handshake,
it will hold spinlock. And then the user actively shutdowns the socket
and listens to the socket immediately, the spinlock will be initialized.
When the socket is going to release the spinlock, a warning is generated.
Also the same issue to fastopenq.lock.
Move init spinlock to inet_create and inet_accept to make sure init the
accept_queue's spinlocks once.
Fixes: fff1f3001cc5 ("tcp: add a spinlock to protect struct request_sock_queue")
Fixes: 168a8f58059a ("tcp: TCP Fast Open Server - main code path")
Reported-by: Ming Shu <sming56@aliyun.com>
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20240118012019.1751966-1-shaozhengchao@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull strlcpy removal from Kees Cook:
"As promised, this is 'part 2' of the hardening tree, late in -rc1 now
that all the other trees with strlcpy() removals have landed. One new
user appeared (in bcachefs) but was a trivial refactor. The kernel is
now free of the strlcpy() API!
- Remove of the final (very recent) user of strlcpy() (in bcachefs)
- Remove the strlcpy() API. Long live strscpy()"
* tag 'strlcpy-removal-v6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
string: Remove strlcpy()
bcachefs: Replace strlcpy() with strscpy()
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree header detangling from Rob Herring:
"Remove the circular including of of_device.h and of_platform.h along
with all of their implicit includes.
This is the culmination of several kernel cycles worth of fixing
implicit DT includes throughout the tree"
* tag 'devicetree-for-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: Stop circularly including of_device.h and of_platform.h
clk: qcom: gcc-x1e80100: Replace of_device.h with explicit includes
thermal: loongson2: Replace of_device.h with explicit includes
net: can: Use device_get_match_data()
sparc: Use device_get_match_data()
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes:
- Lots of ASoC SOF fixes and related reworks
- ASoC TAS codec fixes including DT updates
- A few HD-audio quirks and regression fixes
- Minor fixes for aloop, oxygen and scarlett2 mixer"
* tag 'sound-fix-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (23 commits)
ALSA: hda/realtek: Enable headset mic on Lenovo M70 Gen5
ALSA: hda/realtek: Enable mute/micmute LEDs and limit mic boost on HP ZBook
ALSA: hda/relatek: Enable Mute LED on HP Laptop 15s-fq2xxx
ASoC: SOF: ipc4-loader: remove the CPC check warnings
ASoC: SOF: ipc4-pcm: remove log message for LLP
ALSA: hda: generic: Remove obsolete call to ledtrig_audio_get
ALSA: scarlett2: Fix yet more -Wformat-truncation warnings
ALSA: hda: Properly setup HDMI stream
ASoC: audio-graph-card2: fix index check on graph_parse_node_multi_nm()
ASoC: SOF: icp3-dtrace: Revert "Fix wrong kfree() usage"
ALSA: oxygen: Fix right channel of capture volume mixer
ALSA: aloop: Introduce a function to get if access is interleaved mode
ASoC: mediatek: sof-common: Add NULL check for normal_link string
ASoC: mediatek: mt8195: Remove afe-dai component and rework codec link
ASoC: mediatek: mt8192: Check existence of dai_name before dereferencing
ASoC: Intel: bxt_rt298: Fix kernel ops due to COMP_DUMMY change
ASoC: Intel: bxt_da7219_max98357a: Fix kernel ops due to COMP_DUMMY change
ASoC: codecs: rtq9128: Fix TDM enable and DAI format control flow
ASoC: codecs: rtq9128: Fix PM_RUNTIME usage
ASoC: tas2781: Add tas2563 into driver
...
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With all the users of strlcpy() removed[1] from the kernel, remove the
API, self-tests, and other references. Leave mentions in Documentation
(about its deprecation), and in checkpatch.pl (to help migrate host-only
tools/ usage). Long live strscpy().
Link: https://github.com/KSPP/linux/issues/89 [1]
Cc: Azeem Shaikh <azeemshaikh38@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
Cc: Dwaipayan Ray <dwaipayanray1@gmail.com>
Cc: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Cc: linux-hardening@vger.kernel.org
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"New features:
- bq24190: Add support for BQ24296 charger
Cleanups:
- all reset drivers: Stop using module_platform_driver_probe()
- gpio-restart: use devm_register_sys_off_handler
- pwr-mlxbf: support graceful reboot
- cw2015: correct time_to_empty units
- qcom-battmgr: Fix driver initialization sequence
- bq27xxx: Start/Stop delayed work in suspend/resume
- minor cleanups and fixes"
* tag 'for-v6.8-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (33 commits)
power: supply: bq24190_charger: Fix "initializer element is not constant" error
power: supply: bq24190_charger: Add support for BQ24296
dt-bindings: power: supply: bq24190: Add BQ24296 compatible
dt-bindings: power: reset: xilinx: Rename node names in examples
power: supply: qcom_battmgr: Register the power supplies after PDR is up
dt-bindings: power: reset: qcom-pon: fix inconsistent example
power: supply: Fix null pointer dereference in smb2_probe
power: reset: at91: Drop '__init' from at91_wakeup_status()
power: supply: Use multiple MODULE_AUTHOR statements
power: supply: Fix indentation and some other warnings
power: reset: gpio-restart: Use devm_register_sys_off_handler()
power: supply: bq256xx: fix some problem in bq256xx_hw_init
power: supply: cw2015: correct time_to_empty units in sysfs
power: reset: at91-sama5d2_shdwc: Convert to platform remove callback returning void
power: reset: at91-reset: Convert to platform remove callback returning void
power: reset: tps65086-restart: Convert to platform remove callback returning void
power: reset: syscon-poweroff: Convert to platform remove callback returning void
power: reset: rmobile-reset: Convert to platform remove callback returning void
power: reset: restart-poweroff: Convert to platform remove callback returning void
power: reset: regulator-poweroff: Convert to platform remove callback returning void
...
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Pull ceph updates from Ilya Dryomov:
"Assorted CephFS fixes and cleanups with nothing standing out"
* tag 'ceph-for-6.8-rc1' of https://github.com/ceph/ceph-client:
ceph: get rid of passing callbacks in __dentry_leases_walk()
ceph: d_obtain_{alias,root}(ERR_PTR(...)) will do the right thing
ceph: fix invalid pointer access if get_quota_realm return ERR_PTR
ceph: remove duplicated code in ceph_netfs_issue_read()
ceph: send oldest_client_tid when renewing caps
ceph: rename create_session_open_msg() to create_session_full_msg()
ceph: select FS_ENCRYPTION_ALGS if FS_ENCRYPTION
ceph: fix deadlock or deadcode of misusing dget()
ceph: try to allocate a smaller extent map for sparse read
libceph: remove MAX_EXTENTS check for sparse reads
ceph: reinitialize mds feature bit even when session in open
ceph: skip reconnecting if MDS is not ready
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