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Make the naming consistent with the earlier introduced
super_lock_{read,write}() helpers.
Reviewed-by: Jan Kara <jack@suse.cz>
Message-Id: <20230818-vfs-super-fixes-v3-v3-2-9f0b1876e46b@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Replace the open-coded {down,up}_{read,write}() calls with simple
wrappers. Follow-up patches will benefit from this as well.
Reviewed-by: Jan Kara <jack@suse.cz>
Message-Id: <20230818-vfs-super-fixes-v3-v3-1-9f0b1876e46b@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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kill_dirty has always been true for a long time, so hard code it and
remove the unused return value.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Message-Id: <20230811100828.1897174-18-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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get_super is unused now, remove it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Message-Id: <20230811100828.1897174-17-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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BLKFLSBUF is a historic ioctl that is called on a file handle to a
block device and syncs either the file system mounted on that block
device if there is one, or otherwise the just the data on the block
device.
Replace the get_super based syncing with a holder operation to remove
the last usage of get_super, and to also support syncing the file system
if the block device is not the main block device stored in s_dev.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Message-Id: <20230811100828.1897174-16-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Combine the newly merged bdev_mark_dead helper with the existing
mark_dead holder operation so that all operations that invalidate
a device that is dead or being removed now go through the holder
ops. This allows file systems to explicitly shutdown either ASAP
(for a surprise removal) or after writing back data (for an orderly
removal), and do so not only for the main device.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Message-Id: <20230811100828.1897174-15-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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We currently have two interfaces that take a block_devices and the find
a mounted file systems to flush or invaldidate data on it. Both are a
bit problematic because they only work for the "main" block devices
that is used as s_dev for the super_block, and because they don't call
into the file system at all.
Merge the two into a new bdev_mark_dead helper that does both the
syncing and invalidation and which is properly documented. This is
in preparation of merging the functionality into the ->mark_dead
holder operation so that it will work on additional block devices
used by a file systems and give us a single entry point for invalidation
of dead devices or media.
Note that a single standalone fsync_bdev call for an obscure ioctl
remains for now, but that one will also be deal with in a bit.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Message-Id: <20230811100828.1897174-14-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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This message isn't exactly helpful, and file systems already print way more
useful messages when shut down while active.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Message-Id: <20230811100828.1897174-13-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Don't just write out the data, but also invalidate all caches when setting
the device offline. Stop canceling the offlining when writeback fails
as there is no way to recover from that anyway.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Message-Id: <20230811100828.1897174-12-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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FDFMTBEG is used by fdformat to calibrate before formatting a disk.
Neither the atari nor PC floppy driver sync data, which also seems
a bit pointless for a disk hat is about to get formatted.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Message-Id: <20230811100828.1897174-11-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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While changing the format of a floppy isn't strictly speaking a media
change, the effects are the same in that the content of the media
changes and the diskseq should be increased and uevent should be
sent. Switch from calling __invalidate_device to
disk_force_media_change to do so.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Message-Id: <20230811100828.1897174-10-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Hard code the events to DISK_EVENT_MEDIA_CHANGE as that is the only
useful use case, and drop the superfluous return value.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Message-Id: <20230811100828.1897174-9-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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nbd_clear_sock_ioctl kills the socket and with that the block
device. Instead of just invalidating file system buffers,
mark the device as dead, which will also invalidate the buffers
as part of the proper shutdown sequence. This also includes
invalidating partitions if there are any.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Message-Id: <20230811100828.1897174-8-hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Remove 10us delay in cdns_spi_process_fifo() (called from cdns_spi_irq())
to fix data corruption issue on Master side when this driver
configured in Slave mode, as Slave is failed to prepare the date
on time due to above delay.
Add 10us delay before processing the RX FIFO as TX empty doesn't
guarantee valid data in RX FIFO.
Signed-off-by: Srinivas Goud <srinivas.goud@amd.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Tested-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/1692610216-217644-1-git-send-email-srinivas.goud@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Commit 6f486556abe35 ("spi: stm32: renaming of spi_master into
spi_controller") included an accidential reverted of a change added in
commit 1e4929112507f ("spi: stm32: split large transfers based on word
size instead of bytes").
This breaks large SPI transfers with word sizes > 8 bits, which are
e.g. common when driving MIPI DBI displays.
Fix this by using `spi_split_transfers_maxwords()` instead of
`spi_split_transfers_maxsize()`.
Fixes: 6f486556abe35 ("spi: stm32: renaming of spi_master into spi_controller")
Signed-off-by: Leonard Göhrs <l.goehrs@pengutronix.de>
Link: https://lore.kernel.org/r/20230816145237.3159817-1-l.goehrs@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
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The zorro_name_device() function is defined in drivers/zorro/names.c,
but the declaration is not visible there:
drivers/zorro/names.c:58:13: error: no previous prototype for 'zorro_name_device' [-Werror=missing-prototypes]
58 | void __init zorro_name_device(struct zorro_dev *dev)
Include the header to avoid the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20230810141947.1236730-11-arnd@kernel.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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There is a global definition of memcmp() that gets built on m68k but is
never used and causes a warning because of the missing prototype:
lib/string.c:671:15: error: no previous prototype for 'memcmp' [-Werror=missing-prototypes]
Add the corresponding declaration to avoid the warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20230809211057.60514-2-arnd@kernel.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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The generic __div64_32() definition is built on all architectures that
don't provide this as a macro. m68k however neither defines nor
requires __div64_32, so it should define an empty one to avoid the
warning:
lib/math/div64.c:31:32: error: no previous prototype for '__div64_32' [-Werror=missing-prototypes]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20230809211057.60514-1-arnd@kernel.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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All *.S files under arch/m68k/ have been converted to include
<linux/export.h> instead of <asm/export.h>.
Remove <asm/export.h>.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20230807153654.997091-2-masahiroy@kernel.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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Commit ddb5cdbafaaa ("kbuild: generate KSYMTAB entries by modpost")
deprecated <asm/export.h>, which is now a wrapper of <linux/export.h>.
Replace #include <asm/export.h> with #include <linux/export.h>.
After all the <asm/export.h> lines are converted, <asm/export.h> and
<asm-generic/export.h> will be removed.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20230807153654.997091-1-masahiroy@kernel.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
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- Drop CONFIG_CRYPTO_SHA3=m (auto-enabled since commit
bb897c55042e9330 ("crypto: jitter - replace LFSR with SHA3-256")),
- Enable modular build of the Maple Tree test, which can now be
enabled when debugging is disabled.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/274736e1cf7ab863fe84400611c300cb5a25b8c8.1688985387.git.geert@linux-m68k.org
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14s Yoga ITL
The Lenovo Thinkbook 14s Yoga ITL has 4 new symbols/shortcuts on their
F9-F11 and PrtSc keys:
F9: Has a symbol of a head with a headset, the manual says "Service key"
F10: Has a symbol of a telephone horn which has been picked up from the
receiver, the manual says: "Answer incoming calls"
F11: Has a symbol of a telephone horn which is resting on the receiver,
the manual says: "Reject incoming calls"
PrtSc: Has a symbol of a siccor and a dashed ellipse, the manual says:
"Open the Windows 'Snipping' Tool app"
This commit adds support for these 4 new hkey events.
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Link: https://lore.kernel.org/r/20230819-lenovo_keys-v1-1-9d34eac88e0a@apitzsch.eu
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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This adds my laptop Lenovo Yoga 7 14ACN6, with Product Name: 82N7
(from `dmidecode -t1 | grep "Product Name"`) to
the ec_trigger_quirk_dmi_table, have tested that this is required
for the YMC driver to work correctly on this model.
Signed-off-by: Swapnil Devesh <me@sidevesh.com>
Reviewed-by: Gergő Köteles <soyer@irl.hu>
Link: https://lore.kernel.org/r/18a08a8b173.895ef3b250414.1213194126082324071@sidevesh.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux
Pull devfreq iupdates for v6.6 from Chanwoo Choi:
"- Include correct DT header explicitly for imx-bus/imx8m-ddrc/
mtk-cci/tegra30 tegra drivers.
- Reword the kernel-doc comment for devfreq_monitor_start() API using
to specify the default timer as deferrable timer because devfreq core
supports both delayed timer and deferrable timer according to devfreq
device profile.
- Add missing srcu_cleanup_notifier_head() when releasing devfreq
device. srcu_init_notifier_head() allocates resources that need to
be released with a srcu_cleanup_notifier_head() call."
* tag 'devfreq-next-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux:
PM / devfreq: Fix leak in devfreq_dev_release()
PM / devfreq: Reword the kernel-doc comment for devfreq_monitor_start() API
PM / devfreq: Explicitly include correct DT includes
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It turns out that some PCSpecialist Elimina Pro 16 M models
have "GM6BGEQ" as DMI product-name instead of "Elimina Pro 16 M",
causing the existing DMI quirk to not work on these models.
The DMI board-name is always "GM6BGEQ", so match on that instead.
Fixes: 56fec0051a69 ("ACPI: resource: Add IRQ override quirk for PCSpecialist Elimina Pro 16 M")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217394#c36
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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These fix a few issues in the Intel DTS IOSF thermal driver, clean up
code in it and make it use trip point tables for registering thermal
zones.
* thermal-intel:
thermal: intel: intel_soc_dts_iosf: Use struct thermal_trip
thermal: intel: intel_soc_dts_iosf: Rework critical trip setup
thermal: intel: intel_soc_dts_iosf: Add helper for resetting trip points
thermal: intel: intel_soc_dts_iosf: Change initialization ordering
thermal: intel: intel_soc_dts_iosf: Pass sensors to update_trip_temp()
thermal: intel: intel_soc_dts_iosf: Untangle update_trip_temp()
thermal: intel: intel_soc_dts_iosf: Always assume notification support
thermal: intel: intel_soc_dts_iosf: Drop redundant symbol definition
thermal: intel: intel_soc_dts_iosf: Always use 2 trips
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Shubhra reports that their laptop is heating up over s2idle. Even though
it's getting into the deepest state, it appears to be having spurious
wakeup events.
While debugging a tangential issue with the RTC Carsten reports that recent
6.1.y based kernel face a similar problem.
Looking at acpidump and GPIO register comparisons these spurious wakeup
events are from the GPIO associated with the I2C touchpad on both laptops
and occur even when the touchpad is not marked as a wake source by the
kernel.
This means that the boot firmware has programmed these bits and because
Linux didn't touch them lead to spurious wakeup events from that GPIO.
To fix this issue, restore most of the code that previously would clear all
the bits associated with wakeup sources. This will allow the kernel to only
program the wake up sources that are necessary.
This is similar to what was done previously; but only the wake bits are
cleared by default instead of interrupts and wake bits. If any other
problems are reported then it may make sense to clear interrupts again too.
Cc: Sachi King <nakato@nakato.io>
Cc: stable@vger.kernel.org
Cc: Thorsten Leemhuis <regressions@leemhuis.info>
Fixes: 65f6c7c91cb2 ("pinctrl: amd: Revert "pinctrl: amd: disable and mask interrupts on probe"")
Reported-by: Shubhra Prakash Nandi <email2shubhra@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217754
Reported-by: Carsten Hatger <xmb8dsv4@gmail.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217626#c28
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20230818144850.1439-1-mario.limonciello@amd.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers into fixes
pinctrl: renesas: Fixes for v6.5 (take two)
- Fix race conditions in pinctrl group and function creation/remove
calls on the RZ/G2L, RZ/V2M, and RZ/A2 SoC families.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Use IS_ERR_OR_NULL() to detect an error pointer or a null pointer
open-coding to simplify the code.
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20230817014736.3094289-1-lizetao1@huawei.com
Signed-off-by: Juergen Gross <jgross@suse.com>
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Use kmemdup() helper instead of open-coding to
simplify the code.
Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Chen Jiahao <chenjiahao16@huawei.com>
Link: https://lore.kernel.org/r/20230815092434.1206386-1-ruanjinjie@huawei.com
Signed-off-by: Juergen Gross <jgross@suse.com>
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Commit a92336a1176b ("xen/pciback: Drop two backends, squash and cleanup some code.")
declared but never implemented these functions.
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20230808150912.43416-1-yuehaibing@huawei.com
Signed-off-by: Juergen Gross <jgross@suse.com>
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Making virt_to_pfn() a static inline taking a strongly typed
(const void *) makes the contract of a passing a pointer of that
type to the function explicit and exposes any misuse of the
macro virt_to_pfn() acting polymorphic and accepting many types
such as (void *), (unitptr_t) or (unsigned long) as arguments
without warnings.
Also fix all offending call sites to pass a (void *) rather
than an unsigned long. Since virt_to_mfn() is wrapping
virt_to_pfn() this function has become polymorphic as well
so the usage need to be fixed up.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Juergen Gross <jgross@suse.com>
Link: https://lore.kernel.org/r/20230810-virt-to-phys-x86-xen-v1-1-9e966d333e7a@linaro.org
Signed-off-by: Juergen Gross <jgross@suse.com>
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After removing the conditional return from xen_create_contiguous_region(),
the accompanying comment was left in place, but it now precedes an
unrelated conditional and confuses readers.
Fixes: 989513a735f5 ("xen: cleanup pvh leftovers from pv-only sources")
Signed-off-by: Petr Tesarik <petr.tesarik.ext@huawei.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20230802163151.1486-1-petrtesarik@huaweicloud.com
Signed-off-by: Juergen Gross <jgross@suse.com>
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The commit 06470f7468c8 ("mac80211: add API to allow filtering frames in BA sessions")
added reorder_buf_filtered to mark frames filtered by firmware, and it
can only work correctly if hw.max_rx_aggregation_subframes <= 64 since
it stores the bitmap in a u64 variable.
However, new HE or EHT devices can support BlockAck number up to 256 or
1024, and then using a higher subframe index leads UBSAN warning:
UBSAN: shift-out-of-bounds in net/mac80211/rx.c:1129:39
shift exponent 215 is too large for 64-bit type 'long long unsigned int'
Call Trace:
<IRQ>
dump_stack_lvl+0x48/0x70
dump_stack+0x10/0x20
__ubsan_handle_shift_out_of_bounds+0x1ac/0x360
ieee80211_release_reorder_frame.constprop.0.cold+0x64/0x69 [mac80211]
ieee80211_sta_reorder_release+0x9c/0x400 [mac80211]
ieee80211_prepare_and_rx_handle+0x1234/0x1420 [mac80211]
ieee80211_rx_list+0xaef/0xf60 [mac80211]
ieee80211_rx_napi+0x53/0xd0 [mac80211]
Since only old hardware that supports <=64 BlockAck uses
ieee80211_mark_rx_ba_filtered_frames(), limit the use as it is, so add a
WARN_ONCE() and comment to note to avoid using this function if hardware
capability is not suitable.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://lore.kernel.org/r/20230818014004.16177-1-pkshih@realtek.com
[edit commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Commit 67473b8194bc ("xen/events: Remove disfunct affinity spreading")
leave this unused declaration.
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Rahul Singh <rahul.singh@arm.com>
Link: https://lore.kernel.org/r/20230801145413.40684-1-yuehaibing@huawei.com
Signed-off-by: Juergen Gross <jgross@suse.com>
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Jakub asked if I'd be willing to be the maintainer of the macsec code
and review the driver code adding macsec offload, so let's add the
corresponding entry.
The keyword lines are meant to catch selftests and patches adding HW
offload support to other drivers.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Move the ti-cpufreq binding over to opp and convert the free text
binding to json-schema.
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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Rename ti-omap5-opp-supply to be bit more generic omap-opp-supply and
convert the free text binding to json-schema.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
"Fix a regression in the caam driver and af_alg"
* tag 'v6.5-p3' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: fix uninit-value in af_alg_free_resources
Revert "crypto: caam - adjust RNG timing to support more devices"
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This might_sleep() goes back a long time: it was originally introduced
way back when by commit 010060741ad3 ("x86: add might_sleep() to
do_page_fault()"), and made it into the generic VM code when the x86
fault path got re-organized and generalized in commit c2508ec5a58d ("mm:
introduce new 'lock_mm_and_find_vma()' page fault helper").
However, it turns out that the placement of that might_sleep() has
always been rather questionable simply because it's not only a debug
statement to warn about sleeping in contexts that shouldn't sleep (which
was the original reason for adding it), but it also implies a voluntary
scheduling point.
That, in turn, is less than desirable for two reasons:
(a) it ends up being done after we successfully got the mmap_lock, so
just as we got the lock we will now eagerly schedule away and
increase lock contention
and
(b) this is all very possibly part of the "oops, things went horribly
wrong" path and we just haven't figured that out yet
After all, the whole _reason_ for having that get_mmap_lock_carefully()
rather than just doing the obvious mmap_read_lock() is because this code
wants to deal somewhat gracefully with potential kernel wild pointer
bugs.
So then a voluntary scheduling point here is simply not a good idea.
We could certainly turn the 'might_sleep()' into a '__might_sleep()' and
make it be just the debug check that it was originally intended to be.
But even that seems questionable in the wild kernel pointer case - which
again is part of the whole point of this code. The problem wouldn't be
about the _sleeping_ part of the page fault, but about a bad kernel
access. The fact that that bad kernel access might happen in a section
that you shouldn't sleep in is secondary.
So it really ends up being the case that this is simply entirely the
wrong place to do this debug check and related scheduling point at all.
So let's just remove the check entirely. It's been around for over a
decade, it has served its purpose.
The re-schedule will happen at return to user space anyway for the
normal case, and the warning - if we even need it - might be better off
done as a special case for "page fault from kernel mode" once we've
dealt with any potential kernel oopses where the oops is the relevant
thing, not some artificial "scheduling while atomic" test.
Reported-by: Mateusz Guzik <mjguzik@gmail.com>
Link: https://lore.kernel.org/lkml/20230820104303.2083444-1-mjguzik@gmail.com/
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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If an fsverity builtin signature is given for a file but the
".fs-verity" keyring is empty, there's no real reason to run the PKCS#7
parser. Skip this to avoid the PKCS#7 attack surface when builtin
signature support is configured into the kernel but is not being used.
This is a hardening improvement, not a fix per se, but I've added
Fixes and Cc stable to get it out to more users.
Fixes: 432434c9f8e1 ("fs-verity: support builtin file signatures")
Cc: stable@vger.kernel.org
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Link: https://lore.kernel.org/r/20230820173237.2579-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
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Update .gitignore to untrack tools directory and log.txt. "tools" is
generated in "selftests/net/Makefile" and log.txt is generated in
"selftests/net/gro.sh" when executing run_all_tests.
Signed-off-by: Anh Tuan Phan <tuananhlfc@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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UDP sendmsg() is lockless, so ip_select_ident_segs()
can very well be run from multiple cpus [1]
Convert inet->inet_id to an atomic_t, but implement
a dedicated path for TCP, avoiding cost of a locked
instruction (atomic_add_return())
Note that this patch will cause a trivial merge conflict
because we added inet->flags in net-next tree.
v2: added missing change in
drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c
(David Ahern)
[1]
BUG: KCSAN: data-race in __ip_make_skb / __ip_make_skb
read-write to 0xffff888145af952a of 2 bytes by task 7803 on cpu 1:
ip_select_ident_segs include/net/ip.h:542 [inline]
ip_select_ident include/net/ip.h:556 [inline]
__ip_make_skb+0x844/0xc70 net/ipv4/ip_output.c:1446
ip_make_skb+0x233/0x2c0 net/ipv4/ip_output.c:1560
udp_sendmsg+0x1199/0x1250 net/ipv4/udp.c:1260
inet_sendmsg+0x63/0x80 net/ipv4/af_inet.c:830
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg net/socket.c:748 [inline]
____sys_sendmsg+0x37c/0x4d0 net/socket.c:2494
___sys_sendmsg net/socket.c:2548 [inline]
__sys_sendmmsg+0x269/0x500 net/socket.c:2634
__do_sys_sendmmsg net/socket.c:2663 [inline]
__se_sys_sendmmsg net/socket.c:2660 [inline]
__x64_sys_sendmmsg+0x57/0x60 net/socket.c:2660
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
read to 0xffff888145af952a of 2 bytes by task 7804 on cpu 0:
ip_select_ident_segs include/net/ip.h:541 [inline]
ip_select_ident include/net/ip.h:556 [inline]
__ip_make_skb+0x817/0xc70 net/ipv4/ip_output.c:1446
ip_make_skb+0x233/0x2c0 net/ipv4/ip_output.c:1560
udp_sendmsg+0x1199/0x1250 net/ipv4/udp.c:1260
inet_sendmsg+0x63/0x80 net/ipv4/af_inet.c:830
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg net/socket.c:748 [inline]
____sys_sendmsg+0x37c/0x4d0 net/socket.c:2494
___sys_sendmsg net/socket.c:2548 [inline]
__sys_sendmmsg+0x269/0x500 net/socket.c:2634
__do_sys_sendmmsg net/socket.c:2663 [inline]
__se_sys_sendmmsg net/socket.c:2660 [inline]
__x64_sys_sendmmsg+0x57/0x60 net/socket.c:2660
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
value changed: 0x184d -> 0x184e
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 7804 Comm: syz-executor.1 Not tainted 6.5.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
==================================================================
Fixes: 23f57406b82d ("ipv4: avoid using shared IP generator for connected sockets")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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veth and vxcan need to make sure the ifindexes of the peer
are not negative, core does not validate this.
Using iproute2 with user-space-level checking removed:
Before:
# ./ip link add index 10 type veth peer index -1
# ip link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 52:54:00:74:b2:03 brd ff:ff:ff:ff:ff:ff
10: veth1@veth0: <BROADCAST,MULTICAST,M-DOWN> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ether 8a:90:ff:57:6d:5d brd ff:ff:ff:ff:ff:ff
-1: veth0@veth1: <BROADCAST,MULTICAST,M-DOWN> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 1000
link/ether ae:ed:18:e6:fa:7f brd ff:ff:ff:ff:ff:ff
Now:
$ ./ip link add index 10 type veth peer index -1
Error: ifindex can't be negative.
This problem surfaced in net-next because an explicit WARN()
was added, the root cause is older.
Fixes: e6f8f1a739b6 ("veth: Allow to create peer link with given ifindex")
Fixes: a8f820a380a2 ("can: add Virtual CAN Tunnel driver (vxcan)")
Reported-by: syzbot+5ba06978f34abb058571@syzkaller.appspotmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Ruan Jinjie says:
====================
net: Fix return value check for fixed_phy_register()
The fixed_phy_register() function returns error pointers and never
returns NULL. Update the checks accordingly.
Changes in v3:
- Drop the error fix patch for fixed_phy_get_gpiod().
- Split the error code update code into another patch set as suggested.
- Update the commit title and message.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The fixed_phy_register() function returns error pointers and never
returns NULL. Update the checks accordingly.
Fixes: b0ba512e25d7 ("net: bcmgenet: enable driver to work without a device tree")
Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The fixed_phy_register() function returns error pointers and never
returns NULL. Update the checks accordingly.
Fixes: c25b23b8a387 ("bgmac: register fixed PHY for ARM BCM470X / BCM5301X chipsets")
Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial fixes from Greg KH:
"Here are some small tty and serial core fixes for 6.5-rc7 that resolve
a lot of reported issues.
Primarily in here are the fixes for the serial bus code from Tony that
came in -rc1, as it hit wider testing with the huge number of
different types of systems and serial ports. All of the reported
issues with duplicate names and other issues with this code are now
resolved.
Other than that included in here is:
- n_gsm fix for a previous fix
- 8250 lockdep annotation fix
- fsl_lpuart serial driver fix
- TIOCSTI documentation update for previous CAP_SYS_ADMIN change
All of these have been in linux-next for a while with no reported
problems"
* tag 'tty-6.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: core: Fix serial core port id, including multiport devices
serial: 8250: drop lockdep annotation from serial8250_clear_IER()
tty: n_gsm: fix the UAF caused by race condition in gsm_cleanup_mux
serial: core: Revert port_id use
TIOCSTI: Document CAP_SYS_ADMIN behaviour in Kconfig
serial: 8250: Fix oops for port->pm on uart_change_pm()
serial: 8250: Reinit port_id when adding back serial8250_isa_devs
serial: core: Fix kmemleak issue for serial core device remove
MAINTAINERS: Merge TTY layer and serial drivers
serial: core: Fix serial_base_match() after fixing controller port name
serial: core: Fix serial core controller port name to show controller id
serial: core: Fix serial core port id to not use port->line
serial: core: Controller id cannot be negative
tty: serial: fsl_lpuart: Clear the error flags by writing 1 for lpuart32 platforms
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Pull rust fix from Miguel Ojeda:
- Macros: fix 'HAS_*' redefinition by the '#[vtable]' macro
under conditional compilation
* tag 'rust-fixes-6.5-rc7' of https://github.com/Rust-for-Linux/linux:
rust: macros: vtable: fix `HAS_*` redefinition (`gen_const_name`)
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