The SHA-3 library now utilizes the same s390 SHA-3 acceleration
capabilities as the arch/s390/crypto/ SHA-3 crypto_shash algorithms.
Moreover, crypto/sha3.c now uses the SHA-3 library. The result is that
all SHA-3 APIs are now s390-accelerated without any need for the old
SHA-3 code in arch/s390/crypto/. Remove this superseded code.
Also update the s390 defconfig and debug_defconfig files to enable
CONFIG_CRYPTO_SHA3 instead of CONFIG_CRYPTO_SHA3_256_S390 and
CONFIG_CRYPTO_SHA3_512_S390. This makes it so that the s390-optimized
SHA-3 continues to be built when either of these defconfigs is used.
Tested-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251026055032.1413733-16-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Replace sha3_generic.c with a new file sha3.c which implements the SHA-3
crypto_shash algorithms on top of the SHA-3 library API.
Change the driver name suffix from "-generic" to "-lib" to reflect that
these algorithms now just use the (possibly arch-optimized) library.
This closely mirrors crypto/{md5,sha1,sha256,sha512,blake2b}.c.
Implement export_core and import_core, since crypto/hmac.c expects these
to be present. (Note that there is no security purpose in wrapping
SHA-3 with HMAC. HMAC was designed for older algorithms that don't
resist length extension attacks. But since someone could be using
"hmac(sha3-*)" via crypto_shash anyway, keep supporting it for now.)
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20251026055032.1413733-15-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Make jitterentropy use "sha3-256" instead of "sha3-256-generic", as the
ability to explicitly request the generic code is going away. It's not
worth providing a special generic API just for jitterentropy. There are
many other solutions available to it, such as doing more iterations or
using a more effective jitter collection method.
Moreover, the status quo is that SHA-3 is quite slow anyway. Currently
only arm64 and s390 have architecture-optimized SHA-3 code. I'm not
familiar with the performance of the s390 one, but the arm64 one isn't
actually that much faster than the generic code anyway.
Note that jitterentropy should just use the library API instead of
crypto_shash. But that belongs in a separate change later.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20251026055032.1413733-14-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Some z/Architecture processors can compute a SHA-3 digest in a single
instruction. arch/s390/crypto/ already uses this capability to optimize
the SHA-3 crypto_shash algorithms.
Use this capability to implement the sha3_224(), sha3_256(), sha3_384(),
and sha3_512() library functions too.
SHA3-256 benchmark results provided by Harald Freudenberger
(https://lore.kernel.org/r/4188d18bfcc8a64941c5ebd8de10ede2@linux.ibm.com/)
on a z/Architecture machine with "facility 86" (MSA level 12):
Length (bytes) Before (MB/s) After (MB/s)
============== ============= ============
16 212 225
64 820 915
256 1850 3350
1024 5400 8300
4096 11200 11300
Note: the original data from Harald was given in the form of a graph for
each length, showing the distribution of throughputs from 500 runs. I
guesstimated the peak of each one.
Harald also reported that the generic SHA-3 code was at most 259 MB/s
(https://lore.kernel.org/r/c39f6b6c110def0095e5da5becc12085@linux.ibm.com/).
So as expected, the earlier commit that optimized sha3_absorb_blocks()
and sha3_keccakf() is the more important one; it optimized the Keccak
permutation which is the most performance-critical part of SHA-3.
Still, this additional commit does notably improve performance further
on some lengths.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20251026055032.1413733-13-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Add support for architecture-specific overrides of sha3_224(),
sha3_256(), sha3_384(), and sha3_512(). This will be used to implement
these functions more efficiently on s390 than is possible via the usual
init + update + final flow.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20251026055032.1413733-12-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Implement sha3_absorb_blocks() and sha3_keccakf() using the hardware-
accelerated SHA-3 support in Message-Security-Assist Extension 6.
This accelerates the SHA3-224, SHA3-256, SHA3-384, SHA3-512, and
SHAKE256 library functions.
Note that arch/s390/crypto/ already has SHA-3 code that uses this
extension, but it is exposed only via crypto_shash. This commit brings
the same acceleration to the SHA-3 library. The arch/s390/crypto/
version will become redundant and be removed in later changes.
Tested-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251026055032.1413733-11-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Instead of exposing the arm64-optimized SHA-3 code via arm64-specific
crypto_shash algorithms, instead just implement the sha3_absorb_blocks()
and sha3_keccakf() library functions. This is much simpler, it makes
the SHA-3 library functions be arm64-optimized, and it fixes the
longstanding issue where the arm64-optimized SHA-3 code was disabled by
default. SHA-3 still remains available through crypto_shash, but
individual architectures no longer need to handle it.
Note: to see the diff from arch/arm64/crypto/sha3-ce-glue.c to
lib/crypto/arm64/sha3.h, view this commit with 'git show -M10'.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251026055032.1413733-10-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
- Use size_t lengths, to match the library.
- Pass the block size instead of digest size, and add support for the
block size that SHAKE128 uses. This allows the code to be used with
SHAKE128 and SHAKE256, which don't have the concept of a digest size.
SHAKE256 has the same block size as SHA3-256, but SHAKE128 has a
unique block size. Thus, there are now 5 supported block sizes.
Don't bother changing the "glue" code arm64_sha3_update() too much, as
it gets deleted when the SHA-3 code is migrated into lib/crypto/ anyway.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251026055032.1413733-9-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Since the SHA-3 algorithms are FIPS-approved, add the boot-time
self-test which is apparently required. This closely follows the
corresponding SHA-1, SHA-256, and SHA-512 tests.
Tested-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251026055032.1413733-8-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
In crypto/sha3_generic.c, the keccakf() function calls keccakf_round()
to do four of Keccak-f's five step mappings. However, it does not do
the Iota step mapping - presumably because that is dependent on round
number, whereas Theta, Rho, Pi and Chi are not.
Note that the keccakf_round() function needs to be explicitly
non-inlined on certain architectures as gcc's produced output will (or
used to) use over 1KiB of stack space if inlined.
Now, this code was copied more or less verbatim into lib/crypto/sha3.c,
so that has the same aesthetic issue. Fix this there by passing the
round number into sha3_keccakf_one_round_generic() and doing the Iota
step mapping there.
crypto/sha3_generic.c is left untouched as that will be converted to use
lib/crypto/sha3.c at some point.
Suggested-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251026055032.1413733-5-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Add SHA-3 support to lib/crypto/. All six algorithms in the SHA-3
family are supported: four digests (SHA3-224, SHA3-256, SHA3-384, and
SHA3-512) and two extendable-output functions (SHAKE128 and SHAKE256).
The SHAKE algorithms will be required for ML-DSA.
[EB: simplified the API to use fewer types and functions, fixed bug that
sometimes caused incorrect SHAKE output, cleaned up the
documentation, dropped an ad-hoc test that was inconsistent with
the rest of lib/crypto/, and many other cleanups]
Signed-off-by: David Howells <dhowells@redhat.com>
Co-developed-by: Eric Biggers <ebiggers@kernel.org>
Tested-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251026055032.1413733-4-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Rename the arm64 sha3_update() function to have an "arm64_" prefix to
avoid a name conflict with the upcoming SHA-3 library.
Note: this code will be superseded later. This commit simply keeps the
kernel building for the initial introduction of the library.
[EB: dropped unnecessary rename of sha3_finup(), and improved commit
message]
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251026055032.1413733-3-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Rename the s390 sha3_*_init() functions to have an "s390_" prefix to
avoid a name conflict with the upcoming SHA-3 library functions.
Note: this code will be superseded later. This commit simply keeps the
kernel building for the initial introduction of the library.
[EB: dropped unnecessary rename of import and export functions, and
improved commit message]
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251026055032.1413733-2-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Replace blake2b_generic.c with a new file blake2b.c which implements the
BLAKE2b crypto_shash algorithms on top of the BLAKE2b library API.
Change the driver name suffix from "-generic" to "-lib" to reflect that
these algorithms now just use the (possibly arch-optimized) library.
This closely mirrors crypto/{md5,sha1,sha256,sha512}.c.
Remove include/crypto/internal/blake2b.h since it is no longer used.
Likewise, remove struct blake2b_state from include/crypto/blake2b.h.
Omit support for import_core and export_core, since there are no legacy
drivers that need these for these algorithms.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-10-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Migrate the arm-optimized BLAKE2b code from arch/arm/crypto/ to
lib/crypto/arm/. This makes the BLAKE2b library able to use it, and it
also simplifies the code because it's easier to integrate with the
library than crypto_shash.
This temporarily makes the arm-optimized BLAKE2b code unavailable via
crypto_shash. A later commit reimplements the blake2b-* crypto_shash
algorithms on top of the BLAKE2b library API, making it available again.
Note that as per the lib/crypto/ convention, the optimized code is now
enabled by default. So, this also fixes the longstanding issue where
the optimized BLAKE2b code was not enabled by default.
To see the diff from arch/arm/crypto/blake2b-neon-glue.c to
lib/crypto/arm/blake2b.h, view this commit with 'git show -M10'.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-8-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Add a library API for BLAKE2b, closely modeled after the BLAKE2s API.
This will allow in-kernel users such as btrfs to use BLAKE2b without
going through the generic crypto layer. In addition, as usual the
BLAKE2b crypto_shash algorithms will be reimplemented on top of this.
Note: to create lib/crypto/blake2b.c I made a copy of
lib/crypto/blake2s.c and made the updates from BLAKE2s => BLAKE2b. This
way, the BLAKE2s and BLAKE2b code is kept consistent. Therefore, it
borrows the SPDX-License-Identifier and Copyright from
lib/crypto/blake2s.c rather than crypto/blake2b_generic.c.
The library API uses 'struct blake2b_ctx', consistent with other
lib/crypto/ APIs. The existing 'struct blake2b_state' will be removed
once the blake2b crypto_shash algorithms are updated to stop using it.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-7-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Add le64_to_cpu_array() and cpu_to_le64_array(). These mirror the
corresponding 32-bit functions.
These will be used by the BLAKE2b code.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-6-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
A couple more small cleanups to the BLAKE2s code before these things get
propagated into the BLAKE2b code:
- Drop 'const' from some non-pointer function parameters. It was a bit
excessive and not conventional.
- Rename 'block' argument of blake2s_compress*() to 'data'. This is for
consistency with the SHA-* code, and also to avoid the implication
that it points to a singular "block".
No functional changes.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-4-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
For consistency with the SHA-1, SHA-2, SHA-3 (in development), and MD5
library APIs, rename blake2s_state to blake2s_ctx.
As a refresher, the ctx name:
- Is a bit shorter.
- Avoids confusion with the compression function state, which is also
often called the state (but is just part of the full context).
- Is consistent with OpenSSL.
Not a big deal, of course. But consistency is nice. With a BLAKE2b
library API about to be added, this is a convenient time to update this.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-3-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Reorder the parameters of blake2s() from (out, in, key, outlen, inlen,
keylen) to (key, keylen, in, inlen, out, outlen).
This aligns BLAKE2s with the common conventions of pairing buffers and
their lengths, and having outputs follow inputs. This is widely used
elsewhere in lib/crypto/ and crypto/, and even elsewhere in the BLAKE2s
code itself such as blake2s_init_key() and blake2s_final(). So
blake2s() was a bit of an exception.
Notably, this results in the same order as hmac_*_usingrawkey().
Note that since the type signature changed, it's not possible for a
blake2s() call site to be silently missed.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251018043106.375964-2-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Add FIPS cryptographic algorithm self-tests for all SHA-1 and SHA-2
algorithms. Following the "Implementation Guidance for FIPS 140-3"
document, to achieve this it's sufficient to just test a single test
vector for each of HMAC-SHA1, HMAC-SHA256, and HMAC-SHA512.
Just run these tests in the initcalls, following the example of e.g.
crypto/kdf_sp800108.c. Note that this should meet the FIPS self-test
requirement even in the built-in case, given that the initcalls run
before userspace, storage, network, etc. are accessible.
This does not fix a regression, seeing as lib/ has had SHA-1 support
since 2005 and SHA-256 support since 2018. Neither ever had FIPS
self-tests. Moreover, fips=1 support has always been an unfinished
feature upstream. However, with lib/ now being used more widely, it's
now seeing more scrutiny and people seem to want these now [1][2].
[1] https://lore.kernel.org/r/3226361.1758126043@warthog.procyon.org.uk/
[2] https://lore.kernel.org/r/f31dbb22-0add-481c-aee0-e337a7731f8e@oracle.com/
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20251011001047.51886-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Here are some small char/misc/android driver fixes for 6.18-rc3 for
reported issues. Included in here are:
- rust binder fixes for reported issues
- mei device id addition
- mei driver fixes
- comedi bugfix
- most usb driver bugfixes
- fastrpc memory leak fix
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char/misc/android driver fixes for 6.18-rc3 for
reported issues. Included in here are:
- rust binder fixes for reported issues
- mei device id addition
- mei driver fixes
- comedi bugfix
- most usb driver bugfixes
- fastrpc memory leak fix
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
most: usb: hdm_probe: Fix calling put_device() before device initialization
most: usb: Fix use-after-free in hdm_disconnect
binder: remove "invalid inc weak" check
mei: txe: fix initialization order
comedi: fix divide-by-zero in comedi_buf_munge()
mei: late_bind: Fix -Wincompatible-function-pointer-types-strict
misc: fastrpc: Fix dma_buf object leak in fastrpc_map_lookup
mei: me: add wildcat lake P DID
misc: amd-sbi: Clarify that this is a BMC driver
nvmem: rcar-efuse: add missing MODULE_DEVICE_TABLE
binder: Fix missing kernel-doc entries in binder.c
rust_binder: report freeze notification only when fully frozen
rust_binder: don't delete FreezeListener if there are pending duplicates
rust_binder: freeze_notif_done should resend if wrong state
rust_binder: remove warning about orphan mappings
rust_binder: clean `clippy::mem_replace_with_default` warning
Here are some small staging driver fixes for the gpib subsystem to
resolve some reported issues. Included in here are:
- memory leak fixes
- error code fixes
- proper protocol fixes
All of these have been in linux-next for almost 2 weeks now with no
reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are some small staging driver fixes for the gpib subsystem to
resolve some reported issues. Included in here are:
- memory leak fixes
- error code fixes
- proper protocol fixes
All of these have been in linux-next for almost 2 weeks now with no
reported issues"
* tag 'staging-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: gpib: Fix device reference leak in fmh_gpib driver
staging: gpib: Return -EINTR on device clear
staging: gpib: Fix sending clear and trigger events
staging: gpib: Fix no EOI on 1 and 2 byte writes
Here are some small tty and serial driver fixes for reported issues.
Included in here are:
- sh-sci serial driver fixes
- 8250_dw and _mtk driver fixes
- sc16is7xx driver bugfix
- new 8250_exar device ids added
All of these have been in linux-next this past week with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are some small tty and serial driver fixes for reported issues.
Included in here are:
- sh-sci serial driver fixes
- 8250_dw and _mtk driver fixes
- sc16is7xx driver bugfix
- new 8250_exar device ids added
All of these have been in linux-next this past week with no reported
issues"
* tag 'tty-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: 8250_mtk: Enable baud clock and manage in runtime PM
serial: 8250_dw: handle reset control deassert error
dt-bindings: serial: sh-sci: Fix r8a78000 interrupts
serial: sc16is7xx: remove useless enable of enhanced features
serial: 8250_exar: add support for Advantech 2 port card with Device ID 0x0018
tty: serial: sh-sci: fix RSCI FIFO overrun handling
Here are some small USB driver fixes and new device ids for 6.18-rc3.
Included in here are:
- new option serial driver device ids added
- dt bindings fixes for numerous platforms
- xhci bugfixes for many reported regressions
- usbio dependency bugfix
- dwc3 driver fix
- raw-gadget bugfix
All of these have been in linux-next this week with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB driver fixes from Greg KH:
"Here are some small USB driver fixes and new device ids for 6.18-rc3.
Included in here are:
- new option serial driver device ids added
- dt bindings fixes for numerous platforms
- xhci bugfixes for many reported regressions
- usbio dependency bugfix
- dwc3 driver fix
- raw-gadget bugfix
All of these have been in linux-next this week with no reported issues"
* tag 'usb-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: serial: option: add Telit FN920C04 ECM compositions
USB: serial: option: add Quectel RG255C
tcpm: switch check for role_sw device with fw_node
usb/core/quirks: Add Huawei ME906S to wakeup quirk
usb: raw-gadget: do not limit transfer length
USB: serial: option: add UNISOC UIS7720
xhci: dbc: enable back DbC in resume if it was enabled before suspend
xhci: dbc: fix bogus 1024 byte prefix if ttyDBC read races with stall event
usb: xhci-pci: Fix USB2-only root hub registration
dt-bindings: usb: qcom,snps-dwc3: Fix bindings for X1E80100
usb: misc: Add x86 dependency for Intel USBIO driver
dt-bindings: usb: switch: split out ports definition
usb: dwc3: Don't call clk_bulk_disable_unprepare() twice
dt-bindings: usb: dwc3-imx8mp: dma-range is required only for imx8mp
a Clang build
- Make sure a Retbleed mitigation message is printed only when necessary
- Correct the last Zen1 microcode revision for which Entrysign sha256 check is
needed
- Fix a NULL ptr deref when mounting the resctrl fs on a system which supports
assignable counters but where L3 total and local bandwidth monitoring has
been disabled at boot
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Merge tag 'x86_urgent_for_v6.18_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
- Remove dead code leftovers after a recent mitigations cleanup which
fail a Clang build
- Make sure a Retbleed mitigation message is printed only when
necessary
- Correct the last Zen1 microcode revision for which Entrysign sha256
check is needed
- Fix a NULL ptr deref when mounting the resctrl fs on a system which
supports assignable counters but where L3 total and local bandwidth
monitoring has been disabled at boot
* tag 'x86_urgent_for_v6.18_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/bugs: Remove dead code which might prevent from building
x86/bugs: Qualify RETBLEED_INTEL_MSG
x86/microcode: Fix Entrysign revision check for Zen1/Naples
x86,fs/resctrl: Fix NULL pointer dereference with events force-disabled in mbm_event mode
subsystem after a rework
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Merge tag 'irq_urgent_for_v6.18_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Borislav Petkov:
- Restore the original buslock locking in a couple of places in the irq
core subsystem after a rework
* tag 'irq_urgent_for_v6.18_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/manage: Add buslock back in to enable_irq()
genirq/manage: Add buslock back in to __disable_irq_nosync()
genirq/chip: Add buslock back in to irq_set_handler()
- Add one more Rust noreturn function to objtool's list
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Merge tag 'objtool_urgent_for_v6.18_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fixes from Borislav Petkov:
- Fix x32 build due to wrong format specifier on that sub-arch
- Add one more Rust noreturn function to objtool's list
* tag 'objtool_urgent_for_v6.18_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Fix failure when being compiled on x32 system
objtool/rust: add one more `noreturn` Rust function
throttled otherwise task movement and manipulation would lead to dangling
cfs_rq references and an eventual crash
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Merge tag 'sched_urgent_for_v6.18_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Borislav Petkov:
- Make sure a CFS runqueue on a throttled hierarchy has its PELT clock
throttled otherwise task movement and manipulation would lead to
dangling cfs_rq references and an eventual crash
* tag 'sched_urgent_for_v6.18_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Start a cfs_rq on throttled hierarchy with PELT clock throttled
- In Device::parent(), do not make any assumptions on the device
context of the parent device.
- Check visibility before changing ownership of a sysfs attribute
group.
- In topology_parse_cpu_capacity(), replace an incorrect usage of
PTR_ERR_OR_ZERO() with IS_ERR_OR_NULL().
- In devcoredump, fix a circular locking dependency between
struct devcd_entry::mutex and kernfs.
- Do not warn about a pending fw_devlink sync state.
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Merge tag 'driver-core-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core fixes from Danilo Krummrich:
- In Device::parent(), do not make any assumptions on the device
context of the parent device
- Check visibility before changing ownership of a sysfs attribute
group
- In topology_parse_cpu_capacity(), replace an incorrect usage of
PTR_ERR_OR_ZERO() with IS_ERR_OR_NULL()
- In devcoredump, fix a circular locking dependency between
struct devcd_entry::mutex and kernfs
- Do not warn about a pending fw_devlink sync state
* tag 'driver-core-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
arch_topology: Fix incorrect error check in topology_parse_cpu_capacity()
rust: device: fix device context of Device::parent()
sysfs: check visibility before changing group attribute ownership
devcoredump: Fix circular locking dependency with devcd->mutex.
driver core: fw_devlink: Don't warn about sync_state() pending
A small collection of FireWire fixes. This includes collections to sparse
and API documentation.
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Merge tag 'firewire-fixes-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire fixes from Takashi Sakamoto:
"A small collection of FireWire fixes. This includes corrections to
sparse and API documentation"
* tag 'firewire-fixes-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: init_ohci1394_dma: add missing function parameter documentation
firewire: core: fix __must_hold() annotation
Several RISC-V fixes for v6.18-rc3:
- Close a race during boot between userspace vDSO usage and some
late-initialized vDSO data
- Improve performance on systems with non-CPU-cache-coherent
DMA-capable peripherals by enabling write combining on
pgprot_dmacoherent() allocations
- Add human-readable detail for RISC-V IPI tracing
- Provide more information to zsmalloc on 64-bit RISC-V to improve
allocation
- Silence useless boot messages about CPUs that have been disabled in
DT
- Resolve some compiler and smatch warnings and remove a redundant macro
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Merge tag 'riscv-for-linus-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
- Close a race during boot between userspace vDSO usage and some
late-initialized vDSO data
- Improve performance on systems with non-CPU-cache-coherent
DMA-capable peripherals by enabling write combining on
pgprot_dmacoherent() allocations
- Add human-readable detail for RISC-V IPI tracing
- Provide more information to zsmalloc on 64-bit RISC-V to improve
allocation
- Silence useless boot messages about CPUs that have been disabled in
DT
- Resolve some compiler and smatch warnings and remove a redundant
macro
* tag 'riscv-for-linus-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: hwprobe: avoid uninitialized variable use in hwprobe_arch_id()
riscv: cpufeature: avoid uninitialized variable in has_thead_homogeneous_vlenb()
riscv: hwprobe: Fix stale vDSO data for late-initialized keys at boot
riscv: add a forward declaration for cpuinfo_op
RISC-V: Don't print details of CPUs disabled in DT
riscv: Remove the PER_CPU_OFFSET_SHIFT macro
riscv: mm: Define MAX_POSSIBLE_PHYSMEM_BITS for zsmalloc
riscv: Register IPI IRQs with unique names
ACPI: RIMT: Fix unused function warnings when CONFIG_IOMMU_API is disabled
RISC-V: Define pgprot_dmacoherent() for non-coherent devices
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-fixes-6.18-rc3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Carlos Maiolino:
"The main highlight here is a fix for a bug brought in by the removal
of attr2 mount option, where some installations might actually have
'attr2' explicitly configured in fstab preventing system to boot by
not being able to remount the rootfs as RW.
Besides that there are a couple fix to the zonefs implementation,
changing XFS_ONLINE_SCRUB_STATS to depend on DEBUG_FS (was select
before), and some other minor changes"
* tag 'xfs-fixes-6.18-rc3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix locking in xchk_nlinks_collect_dir
xfs: loudly complain about defunct mount options
xfs: always warn about deprecated mount options
xfs: don't set bt_nr_sectors to a negative number
xfs: don't use __GFP_NOFAIL in xfs_init_fs_context
xfs: cache open zone in inode->i_private
xfs: avoid busy loops in GCD
xfs: XFS_ONLINE_SCRUB_STATS should depend on DEBUG_FS
xfs: do not tightly pack-write large files
xfs: Improve CONFIG_XFS_RT Kconfig help
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Merge tag 'v6.18-rc2-smb-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
"smbdirect (RDMA) fixes in order avoid potential submission queue
overflows:
- free transport teardown fix
- credit related fixes (five server related, one client related)"
* tag 'v6.18-rc2-smb-server-fixes' of git://git.samba.org/ksmbd:
smb: server: let free_transport() wait for SMBDIRECT_SOCKET_DISCONNECTED
smb: client: make use of smbdirect_socket.send_io.lcredits.*
smb: server: make use of smbdirect_socket.send_io.lcredits.*
smb: server: simplify sibling_list handling in smb_direct_flush_send_list/send_done
smb: server: smb_direct_disconnect_rdma_connection() already wakes all waiters on error
smb: smbdirect: introduce smbdirect_socket.send_io.lcredits.*
smb: server: allocate enough space for RW WRs and ib_drain_qp()
Clang is not happy with set but unused variable (this is visible
with `make W=1` build:
kernel/sched/sched.h:3744:18: error: variable 'cpumask' set but not used [-Werror,-Wunused-but-set-variable]
It seems like the variable was never used along with the assignment
that does not have side effects as far as I can see. Remove those
altogether.
Fixes: 223baf9d17 ("sched: Fix performance regression introduced by mm_cid")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Eric Biggers <ebiggers@kernel.org>
Reviewed-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- drm_panic: bunch of size calculation fixes
- pantor: fix kernel panic on partial gpu va unmap
- rockchip: hdmi hotplug setup fix
- amdgpu: dp mst, dc/display fixes
- i915: fix panic structure leak
- xe: madvise uapi fix, wq alloc error, vma flag handling fix
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Merge tag 'drm-fixes-2025-10-24' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Simona Vetter:
"Very quiet, all just small stuff and nothing scary pending to my
knowledge:
- drm_panic: bunch of size calculation fixes
- pantor: fix kernel panic on partial gpu va unmap
- rockchip: hdmi hotplug setup fix
- amdgpu: dp mst, dc/display fixes
- i915: fix panic structure leak
- xe: madvise uapi fix, wq alloc error, vma flag handling fix"
* tag 'drm-fixes-2025-10-24' of https://gitlab.freedesktop.org/drm/kernel:
drm/xe: Check return value of GGTT workqueue allocation
drm/amd/display: use GFP_NOWAIT for allocation in interrupt handler
drm/amd/display: increase max link count and fix link->enc NULL pointer access
drm/amd/display: Fix NULL pointer dereference
drm/panic: Fix 24bit pixel crossing page boundaries
drm/panic: Fix divide by 0 if the screen width < font width
drm/panic: Fix kmsg text drawing rectangle
drm/panic: Fix qr_code, ensure vmargin is positive
drm/panic: Fix overlap between qr code and logo
drm/panic: Fix drawing the logo on a small narrow screen
drm/xe/uapi: Hide the madvise autoreset behind a VM_BIND flag
drm/xe: Retain vma flags when recreating and splitting vmas for madvise
drm/i915/panic: fix panic structure allocation memory leak
drm/panthor: Fix kernel panic on partial unmap of a GPU VA region
drm/rockchip: dw_hdmi: use correct SCLIN mask for RK3228
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Merge tag 'pci-v6.18-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci fixes from Bjorn Helgaas:
- Add DWC custom pci_ops for the root bus instead of overwriting the
DBI base address, which broke drivers that rely on the DBI address
for iATU programming; fixes an FU740 probe regression (Krishna
Chaitanya Chundru)
- Revert qcom ECAM enablement, which is rendered unnecessary by the DWC
custom pci_ops (Krishna Chaitanya Chundru)
- Fix longstanding MIPS Malta resource registration issues to avoid
exposing them when the next commit fixes the boot failure (Maciej W.
Rozycki)
- Use pcibios_align_resource() on MIPS Malta to fix boot failure caused
by using the generic pci_enable_resources() (Ilpo Järvinen)
- Enable only ASPM L0s and L1, not L1 PM Substates, for devicetree
platforms because we lack information required to configure L1
Substates; fixes regressions on powerpc and rockchip. A qcom
regression (L1 Substates no longer enabled) remains and will be
addressed next (Bjorn Helgaas)
* tag 'pci-v6.18-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
PCI/ASPM: Enable only L0s and L1 for devicetree platforms
MIPS: Malta: Use pcibios_align_resource() to block io range
MIPS: Malta: Fix PCI southbridge legacy resource reservations
MIPS: Malta: Fix keyboard resource preventing i8042 driver from registering
Revert "PCI: qcom: Prepare for the DWC ECAM enablement"
PCI: dwc: Use custom pci_ops for root bus DBI vs ECAM config access
Add missing kernel-doc parameter descriptions for five functions
in init_ohci1394_dma.c to fix documentation warnings when building
with W=1.
This patch addresses the following warnings:
- init_ohci1394_wait_for_busresets: missing @ohci description
- init_ohci1394_enable_physical_dma: missing @ohci description
- init_ohci1394_reset_and_init_dma: missing @ohci description
- init_ohci1394_controller: missing @num, @slot, @func descriptions
- setup_ohci1394_dma: missing @opt description
Tested with GCC 13.2.0 and W=1 flag. All documentation warnings
for these functions have been resolved.
Signed-off-by: Nirbhay Sharma <nirbhay.lkd@gmail.com>
Link: https://lore.kernel.org/r/20251024203219.101990-2-nirbhay.lkd@gmail.com
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Avoid some false-positive KMSAN warnings by restoring the dependency of
the architecture-optimized Poly1305 code on !KMSAN.
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Merge tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library fix from Eric Biggers:
"Avoid some false-positive KMSAN warnings by restoring the dependency
of the architecture-optimized Poly1305 code on !KMSAN"
* tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
lib/crypto: poly1305: Restore dependency of arch code on !KMSAN
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Merge tag '6.18-rc2-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
- add missing tracepoints
- smbdirect (RDMA) fix
- fix potential issue with credits underflow
- rename fix
- improvement to calc_signature and additional cleanup patch
* tag '6.18-rc2-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: #include cifsglob.h before trace.h to allow structs in tracepoints
cifs: Call the calc_signature functions directly
smb: client: get rid of d_drop() in cifs_do_rename()
cifs: Fix TCP_Server_Info::credits to be signed
cifs: Add a couple of missing smb3_rw_credits tracepoints
smb: client: allocate enough space for MR WRs and ib_drain_qp()
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Merge tag 'block-6.18-20251023' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- Fix dma alignment for PI
- Fix selinux bogosity with nbd, where sendmsg would get rejected
* tag 'block-6.18-20251023' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
block: require LBA dma_alignment when using PI
nbd: override creds to kernel when calling sock_{send,recv}msg()
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Merge tag 'io_uring-6.18-20251023' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- Add MAINTAINERS entry for zcrx, mostly so that netdev gets
automatically CC'ed by default on any changes there too.
- Fix for the SQPOLL busy vs work time accounting.
It was using getrusage(), which was both broken from a thread point
of view (we only care about the SQPOLL thread itself), and vastly
overkill as only the systime was used. On top of that, also be a bit
smarter in when it's queried. It used excessive CPU before this
change. Marked for stable as well.
- Fix provided ring buffer auto commit for uring_cmd.
- Fix a few style issues and sparse annotation for a lock.
* tag 'io_uring-6.18-20251023' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring: fix buffer auto-commit for multishot uring_cmd
io_uring: correct __must_hold annotation in io_install_fixed_file
io_uring zcrx: add MAINTAINERS entry
io_uring: Fix code indentation error
io_uring/sqpoll: be smarter on when to update the stime usage
io_uring/sqpoll: switch away from getrusage() for CPU accounting
io_uring: fix incorrect unlikely() usage in io_waitid_prep()
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Merge tag 'slab-for-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fixes from Vlastimil Babka:
- Two fixes for race conditions in obj_exts allocation (Hao Ge)
- Fix for slab accounting imbalance due to deferred slab decativation
(Vlastimil Babka)
* tag 'slab-for-6.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
slab: Fix obj_ext mistakenly considered NULL due to race condition
slab: fix slab accounting imbalance due to defer_deactivate_slab()
slab: Avoid race on slab->obj_exts in alloc_slab_obj_exts
- Fix handling of GICv5 ITS MSI properties on platforms with
'msi-parent' as well as a of_node refcounting fix. This is also
preparation for further refactoring in 6.19 to use common DT parsing
of MSI properties.
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Merge tag 'devicetree-fixes-for-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Fix handling of GICv5 ITS MSI properties on platforms with
'msi-parent' as well as a of_node refcounting fix.
This is also preparation for further refactoring in 6.19 to use
common DT parsing of MSI properties.
* tag 'devicetree-fixes-for-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of/irq: Export of_msi_xlate() for module usage
of/irq: Fix OF node refcount in of_msi_get_domain()
of/irq: Add msi-parent check to of_msi_xlate()
The main change this time is an update to the MAINTAINERS file,
listing Krzysztof Kozlowski, Alexandre Belloni, and Linus Walleij as
additional maintainers for the SoC tree, in order to go back to a group
maintainership. Drew Fustini joins as an additional reviewer for the
SoC tree.
Thanks to all of you for volunteering to help out.
On the actual bugfixes, we have a few correctness changes for firmware
drivers (qtee, arm-ffa, scmi) and two devicetree fixes for Raspberry Pi.
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Merge tag 'soc-fixes-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC fixes from Arnd Bergmann:
"The main change this time is an update to the MAINTAINERS file,
listing Krzysztof Kozlowski, Alexandre Belloni, and Linus Walleij as
additional maintainers for the SoC tree, in order to go back to a
group maintainership. Drew Fustini joins as an additional reviewer for
the SoC tree.
Thanks to all of you for volunteering to help out.
On the actual bugfixes, we have a few correctness changes for firmware
drivers (qtee, arm-ffa, scmi) and two devicetree fixes for Raspberry
Pi"
* tag 'soc-fixes-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
soc: officially expand maintainership team
firmware: arm_scmi: Fix premature SCMI_XFER_FLAG_IS_RAW clearing in raw mode
firmware: arm_scmi: Skip RAW initialization on failure
include: trace: Fix inflight count helper on failed initialization
firmware: arm_scmi: Account for failed debug initialization
ARM: dts: broadcom: rpi: Switch to V3D firmware clock
arm64: dts: broadcom: bcm2712: Define VGIC interrupt
firmware: arm_ffa: Add support for IMPDEF value in the memory access descriptor
tee: QCOMTEE should depend on ARCH_QCOM
tee: qcom: return -EFAULT instead of -EINVAL if copy_from_user() fails
tee: qcom: prevent potential off by one read
A moderately large collection of device specific changes here, mostly
fixes but also including a few new quirks and device IDs. This is all
fairly routine even for the affected devices.
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Merge tag 'spi-fix-v6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A moderately large collection of device specific changes here, mostly
fixes but also including a few new quirks and device IDs. This is all
fairly routine even for the affected devices"
* tag 'spi-fix-v6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: dt-bindings: spi-rockchip: Add RK3506 compatible
spi: intel-pci: Add support for Intel Wildcat Lake SPI serial flash
spi: intel-pci: Add support for Arrow Lake-H SPI serial flash
spi: intel: Add support for 128M component density
spi: airoha: fix reading/writing of flashes with more than one plane per lun
spi: airoha: switch back to non-dma mode in the case of error
spi: airoha: add support of dual/quad wires spi modes to exec_op() handler
spi: airoha: return an error for continuous mode dirmap creation cases
spi: amlogic: fix spifc build error
spi: cadence-quadspi: Fix pm_runtime unbalance on dma EPROBE_DEFER
spi: spi-nxp-fspi: limit the clock rate for different sample clock source selection
spi: spi-nxp-fspi: add extra delay after dll locked
spi: spi-nxp-fspi: re-config the clock rate when operation require new clock rate
spi: dw-mmio: add error handling for reset_control_deassert()
spi: rockchip-sfc: Fix DMA-API usage
spi: dt-bindings: cadence: add soc-specific compatible strings for zynqmp and versal-net
