Pull ARM SoC fixes from Arnd Bergmann:
"A number of fixes have accumulated, but they are largely for harmless
issues:
- Several OF node leak fixes
- A fix to the Exynos7885 UART clock description
- DTS fixes to prevent boot failures on TI AM64 and J721s2
- Bus probe error handling fixes for Baikal-T1
- A fixup to the way STM32 SoCs use separate dts files for different
firmware stacks
- Multiple code fixes for Arm SCMI firmware, all dealing with
robustness of the implementation
- Multiple NXP i.MX devicetree fixes, addressing incorrect data in DT
nodes
- Three updates to the MAINTAINERS file, including Florian Fainelli
taking over BCM283x/BCM2711 (Raspberry Pi) from Nicolas Saenz
Julienne"
* tag 'soc-fixes-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (29 commits)
ARM: dts: aspeed: nuvia: rename vendor nuvia to qcom
arm: mach-spear: Add missing of_node_put() in time.c
ARM: cns3xxx: Fix refcount leak in cns3xxx_init
MAINTAINERS: Update email address
arm64: dts: ti: k3-am64-main: Remove support for HS400 speed mode
arm64: dts: ti: k3-j721s2: Fix overlapping GICD memory region
ARM: dts: bcm2711-rpi-400: Fix GPIO line names
bus: bt1-axi: Don't print error on -EPROBE_DEFER
bus: bt1-apb: Don't print error on -EPROBE_DEFER
ARM: Fix refcount leak in axxia_boot_secondary
ARM: dts: stm32: move SCMI related nodes in a dedicated file for stm32mp15
soc: imx: imx8m-blk-ctrl: fix display clock for LCDIF2 power domain
ARM: dts: imx6qdl-colibri: Fix capacitive touch reset polarity
ARM: dts: imx6qdl: correct PU regulator ramp delay
firmware: arm_scmi: Fix incorrect error propagation in scmi_voltage_descriptors_get
firmware: arm_scmi: Avoid using extended string-buffers sizes if not necessary
firmware: arm_scmi: Fix SENSOR_AXIS_NAME_GET behaviour when unsupported
ARM: dts: imx7: Move hsic_phy power domain to HSIC PHY node
soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe
MAINTAINERS: Update BCM2711/BCM2835 maintainer
...
Pull hotfixes from Andrew Morton:
"Minor things, mainly - mailmap updates, MAINTAINERS updates, etc.
Fixes for this merge window:
- fix for a damon boot hang, from SeongJae
- fix for a kfence warning splat, from Jason Donenfeld
- fix for zero-pfn pinning, from Alex Williamson
- fix for fallocate hole punch clearing, from Mike Kravetz
Fixes for previous releases:
- fix for a performance regression, from Marcelo
- fix for a hwpoisining BUG from zhenwei pi"
* tag 'mm-hotfixes-stable-2022-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mailmap: add entry for Christian Marangi
mm/memory-failure: disable unpoison once hw error happens
hugetlbfs: zero partial pages during fallocate hole punch
mm: memcontrol: reference to tools/cgroup/memcg_slabinfo.py
mm: re-allow pinning of zero pfns
mm/kfence: select random number before taking raw lock
MAINTAINERS: add maillist information for LoongArch
MAINTAINERS: update MM tree references
MAINTAINERS: update Abel Vesa's email
MAINTAINERS: add MEMORY HOT(UN)PLUG section and add David as reviewer
MAINTAINERS: add Miaohe Lin as a memory-failure reviewer
mailmap: add alias for jarkko@profian.com
mm/damon/reclaim: schedule 'damon_reclaim_timer' only after 'system_wq' is initialized
kthread: make it clear that kthread_create_on_node() might be terminated by any fatal signal
mm: lru_cache_disable: use synchronize_rcu_expedited
mm/page_isolation.c: fix one kernel-doc comment
Pull gpio fixes from Bartosz Golaszewski:
- make the irqchip immutable in gpio-realtek-otto
- fix error code propagation in gpio-winbond
- fix device removing in gpio-grgpio
- fix a typo in gpio-mxs which indicates the driver is for a different
model
- documentation fixes
- MAINTAINERS file updates
* tag 'gpio-fixes-for-v5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: mxs: Fix header comment
gpio: Fix kernel-doc comments to nested union
gpio: grgpio: Fix device removing
gpio: winbond: Fix error code in winbond_gpio_get()
gpio: realtek-otto: Make the irqchip immutable
docs: driver-api: gpio: Fix filename mismatch
MAINTAINERS: add include/dt-bindings/gpio to GPIO SUBSYSTEM
Pull block fixes from Jens Axboe:
- Series fixing issues with sysfs locking and name reuse (Christoph)
- NVMe pull request via Christoph:
- Fix the mixed up CRIMS/CRWMS constants (Joel Granados)
- Add another broken identifier quirk (Leo Savernik)
- Fix up a quirk because Samsung reuses PCI IDs over different
products (Christoph Hellwig)
- Remove old WARN_ON() that doesn't apply anymore (Li)
- Fix for using a stale cached request value for rq-qos throttling
mechanisms that may schedule(), like iocost (me)
- Remove unused parameter to blk_independent_access_range() (Damien)
* tag 'block-5.19-2022-06-24' of git://git.kernel.dk/linux-block:
block: remove WARN_ON() from bd_link_disk_holder
nvme: move the Samsung X5 quirk entry to the core quirks
nvme: fix the CRIMS and CRWMS definitions to match the spec
nvme: add a bogus subsystem NQN quirk for Micron MTFDKBA2T0TFH
block: pop cached rq before potentially blocking rq_qos_throttle()
block: remove queue from struct blk_independent_access_range
block: freeze the queue earlier in del_gendisk
block: remove per-disk debugfs files in blk_unregister_queue
block: serialize all debugfs operations using q->debugfs_mutex
block: disable the elevator int del_gendisk
Pull printk kernel thread revert from Petr Mladek:
"Revert printk console kthreads.
The testing of 5.19 release candidates revealed issues that did not
happen when all consoles were serialized using the console semaphore.
More time is needed to check expectations of the existing console
drivers and be confident that they can be safely used in parallel"
* tag 'printk-for-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
Revert "printk: add functions to prefer direct printing"
Revert "printk: add kthread console printers"
Revert "printk: extend console_lock for per-console locking"
Revert "printk: remove @console_locked"
Revert "printk: Block console kthreads when direct printing will be required"
Revert "printk: Wait for the global console lock when the system is going down"
This reverts commit 2bb2b7b57f.
The testing of 5.19 release candidates revealed missing synchronization
between early and regular console functionality.
It would be possible to start the console kthreads later as a workaround.
But it is clear that console lock serialized console drivers between
each other. It opens a big area of possible problems that were not
considered by people involved in the development and review.
printk() is crucial for debugging kernel issues and console output is
very important part of it. The number of consoles is huge and a proper
review would take some time. As a result it need to be reverted for 5.19.
Link: https://lore.kernel.org/r/YrBdjVwBOVgLfHyb@alley
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220623145157.21938-7-pmladek@suse.com
This reverts commit 09c5ba0aa2.
This reverts commit b87f02307d.
The testing of 5.19 release candidates revealed missing synchronization
between early and regular console functionality.
It would be possible to start the console kthreads later as a workaround.
But it is clear that console lock serialized console drivers between
each other. It opens a big area of possible problems that were not
considered by people involved in the development and review.
printk() is crucial for debugging kernel issues and console output is
very important part of it. The number of consoles is huge and a proper
review would take some time. As a result it need to be reverted for 5.19.
Link: https://lore.kernel.org/r/YrBdjVwBOVgLfHyb@alley
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220623145157.21938-6-pmladek@suse.com
This reverts commit 8e27473211.
The testing of 5.19 release candidates revealed missing synchronization
between early and regular console functionality.
It would be possible to start the console kthreads later as a workaround.
But it is clear that console lock serialized console drivers between
each other. It opens a big area of possible problems that were not
considered by people involved in the development and review.
printk() is crucial for debugging kernel issues and console output is
very important part of it. The number of consoles is huge and a proper
review would take some time. As a result it need to be reverted for 5.19.
Link: https://lore.kernel.org/r/YrBdjVwBOVgLfHyb@alley
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220623145157.21938-5-pmladek@suse.com
This reverts commit b87f02307d.
The testing of 5.19 release candidates revealed missing synchronization
between early and regular console functionality.
It would be possible to start the console kthreads later as a workaround.
But it is clear that console lock serialized console drivers between
each other. It opens a big area of possible problems that were not
considered by people involved in the development and review.
printk() is crucial for debugging kernel issues and console output is
very important part of it. The number of consoles is huge and a proper
review would take some time. As a result it need to be reverted for 5.19.
Link: https://lore.kernel.org/r/YrBdjVwBOVgLfHyb@alley
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220623145157.21938-2-pmladek@suse.com
Adjust the values of NVME_CAP_CRMS_CRIMS and NVME_CAP_CRMS_CRWMS masks as
they are different from the ones in TP4084 - Time-to-ready.
Fixes: 354201c53e ("nvme: add support for TP4084 - Time-to-Ready Enhancements").
Signed-off-by: Joel Granados <j.granados@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
random.c ratelimits how much it warns about uninitialized urandom reads
using __ratelimit(). When the RNG is finally initialized, it prints the
number of missed messages due to ratelimiting.
It has been this way since that functionality was introduced back in
2018. Recently, cc1e127bfa ("random: remove ratelimiting for in-kernel
unseeded randomness") put a bit more stress on the urandom ratelimiting,
which teased out a bug in the implementation.
Specifically, when under pressure, __ratelimit() will print its own
message and reset the count back to 0, making the final message at the
end less useful. Secondly, it does so as a pr_warn(), which apparently
is undesirable for people's CI.
Fortunately, __ratelimit() has the RATELIMIT_MSG_ON_RELEASE flag exactly
for this purpose, so we set the flag.
Fixes: 4e00b339e2 ("random: rate limit unseeded randomness warnings")
Cc: stable@vger.kernel.org
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Reported-by: Ron Economos <re@w6rz.net>
Tested-by: Ron Economos <re@w6rz.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Pull build tooling updates from Thomas Gleixner:
- Remove obsolete CONFIG_X86_SMAP reference from objtool
- Fix overlapping text section failures in faddr2line for real
- Remove OBJECT_FILES_NON_STANDARD usage from x86 ftrace and replace it
with finegrained annotations so objtool can validate that code
correctly.
* tag 'objtool-urgent-2022-06-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ftrace: Remove OBJECT_FILES_NON_STANDARD usage
faddr2line: Fix overlapping text section failures, the sequel
objtool: Fix obsolete reference to CONFIG_X86_SMAP
Pull printk fixes from Petr Mladek:
"Make the global console_sem available for CPU that is handling panic()
or shutdown.
This is an old problem when an existing console lock owner might block
console output, but it became more visible with the kthreads"
* tag 'printk-for-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
printk: Wait for the global console lock when the system is going down
printk: Block console kthreads when direct printing will be required
Pull block fixes from Jens Axboe:
- NVMe pull request from Christoph
- Quirks, quirks, quirks to work around buggy consumer grade
devices (Keith Bush, Ning Wang, Stefan Reiter, Rasheed Hsueh)
- Better kernel messages for devices that need quirking (Keith
Bush)
- Make a kernel message more useful (Thomas Weißschuh)
- MD pull request from Song, with a few fixes
- blk-mq sysfs locking fixes (Ming)
- BFQ stats fix (Bart)
- blk-mq offline queue fix (Bart)
- blk-mq flush request tag fix (Ming)
* tag 'block-5.19-2022-06-16' of git://git.kernel.dk/linux-block:
block/bfq: Enable I/O statistics
blk-mq: don't clear flush_rq from tags->rqs[]
blk-mq: avoid to touch q->elevator without any protection
blk-mq: protect q->elevator by ->sysfs_lock in blk_mq_elv_switch_none
block: Fix handling of offline queues in blk_mq_alloc_request_hctx()
md/raid5-ppl: Fix argument order in bio_alloc_bioset()
Revert "md: don't unregister sync_thread with reconfig_mutex held"
nvme-pci: disable write zeros support on UMIC and Samsung SSDs
nvme-pci: avoid the deepest sleep state on ZHITAI TiPro7000 SSDs
nvme-pci: sk hynix p31 has bogus namespace ids
nvme-pci: smi has bogus namespace ids
nvme-pci: phison e12 has bogus namespace ids
nvme-pci: add NVME_QUIRK_BOGUS_NID for ADATA XPG GAMMIX S50
nvme-pci: add trouble shooting steps for timeouts
nvme: add bug report info for global duplicate id
nvme: add device name to warning in uuid_show()
Pull writeback and ext2 fixes from Jan Kara:
"A fix for writeback bug which prevented machines with kdevtmpfs from
booting and also one small ext2 bugfix in IO error handling"
* tag 'fs_for_v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
init: Initialize noop_backing_dev_info early
ext2: fix fs corruption when trying to remove a non-empty directory with IO error
Pull staging driver fixes from Greg KH:
"Here are some small staging driver fixes for 5.19-rc3 that resolve
reported issues:
- remove visorbus.h which was forgotten in the -rc1 merge where the
code that used it was removed
- olpc_dcon: mark as broken to allow the DRM developers to evolve the
fbdev api properly without having to deal with this obsolete
driver. It will be removed soon if no one steps up to adopt it and
fix the issues with it.
- rtl8723bs driver fix
- r8188eu driver fix to resolve many reports of the driver being
broken with -rc1.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: Also remove the Unisys visorbus.h
staging: rtl8723bs: Allocate full pwep structure
staging: olpc_dcon: mark driver as broken
staging: r8188eu: Fix warning of array overflow in ioctl_linux.c
staging: r8188eu: fix rtw_alloc_hwxmits error detection for now
Pull tty/serial driver fixes from Greg KH:
"Here are some small tty and serial driver fixes for 5.19-rc3 to
resolve some reported problems:
- 8250 lsr read bugfix
- n_gsm line discipline allocation fix
- qcom serial driver fix for reported lockups that happened in -rc1
- goldfish tty driver fix
All have been in linux-next for a while now with no reported issues"
* tag 'tty-5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
serial: 8250: Store to lsr_save_flags after lsr read
tty: goldfish: Fix free_irq() on remove
tty: serial: qcom-geni-serial: Implement start_rx callback
serial: core: Introduce callback for start_rx and do stop_rx in suspend only if this callback implementation is present.
tty: n_gsm: Debug output allocation must use GFP_ATOMIC
Various places like I/O schedulers or the QOS infrastructure try to
register debugfs files on demans, which can race with creating and
removing the main queue debugfs directory. Use the existing
debugfs_mutex to serialize all debugfs operations that rely on
q->debugfs_dir or the directories hanging off it.
To make the teardown code a little simpler declare all debugfs dentry
pointers and not just the main one uncoditionally in blkdev.h.
Move debugfs_mutex next to the dentries that it protects and document
what it is used for.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220614074827.458955-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
q->elevator is referred in blk_mq_has_sqsched() without any protection,
no .q_usage_counter is held, no queue srcu and rcu read lock is held,
so potential use-after-free may be triggered.
Fix the issue by adding one queue flag for checking if the elevator
uses single queue style dispatch. Meantime the elevator feature flag
of ELEVATOR_F_MQ_AWARE isn't needed any more.
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220616014401.817001-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
noop_backing_dev_info is used by superblocks of various
pseudofilesystems such as kdevtmpfs. After commit 10e1407310
("writeback: Fix inode->i_io_list not be protected by inode->i_lock
error") this broke because __mark_inode_dirty() started to access more
fields from noop_backing_dev_info and this led to crashes inside
locked_inode_to_wb_and_lock_list() called from __mark_inode_dirty().
Fix the problem by initializing noop_backing_dev_info before the
filesystems get mounted.
Fixes: 10e1407310 ("writeback: Fix inode->i_io_list not be protected by inode->i_lock error")
Reported-and-tested-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reported-and-tested-by: Alexandru Elisei <alexandru.elisei@arm.com>
Reported-and-tested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Pull hardening fixes from Kees Cook:
- Correctly handle vm_map areas in hardened usercopy (Matthew Wilcox)
- Adjust CFI RCU usage to avoid boot splats with cpuidle (Sami Tolvanen)
* tag 'hardening-v5.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
usercopy: Make usercopy resilient against ridiculously large copies
usercopy: Cast pointer to an integer once
usercopy: Handle vm_map_ram() areas
cfi: Fix __cfi_slowpath_diag RCU usage with cpuidle
There are reports that the console kthreads block the global console
lock when the system is going down, for example, reboot, panic.
First part of the solution was to block kthreads in these problematic
system states so they stopped handling newly added messages.
Second part of the solution is to wait when for the kthreads when
they are actively printing. It solves the problem when a message
was printed before the system entered the problematic state and
the kthreads managed to step in.
A busy waiting has to be used because panic() can be called in any
context and in an unknown state of the scheduler.
There must be a timeout because the kthread might get stuck or sleeping
and never release the lock. The timeout 10s is an arbitrary value
inspired by the softlockup timeout.
Link: https://lore.kernel.org/r/20220610205038.GA3050413@paulmck-ThinkPad-P17-Gen-1
Link: https://lore.kernel.org/r/CAMdYzYpF4FNTBPZsEFeWRuEwSies36QM_As8osPWZSr2q-viEA@mail.gmail.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
Tested-by: Paul E. McKenney <paulmck@kernel.org>
Link: https://lore.kernel.org/r/20220615162805.27962-3-pmladek@suse.com
Commit e81fb4198e ("netfs: Further cleanups after struct netfs_inode
wrapper introduced") changed the argument types and names, and actually
updated the comment too (although that was thanks to David Howells, not
me: my original patch only changed the code).
But the comment fixup didn't go quite far enough, and didn't change the
argument name in the comment, resulting in
include/linux/netfs.h:314: warning: Function parameter or member 'ctx' not described in 'netfs_inode_init'
include/linux/netfs.h:314: warning: Excess function parameter 'inode' description in 'netfs_inode_init'
during htmldoc generation.
Fixes: e81fb4198e ("netfs: Further cleanups after struct netfs_inode wrapper introduced")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull x86 MMIO stale data fixes from Thomas Gleixner:
"Yet another hw vulnerability with a software mitigation: Processor
MMIO Stale Data.
They are a class of MMIO-related weaknesses which can expose stale
data by propagating it into core fill buffers. Data which can then be
leaked using the usual speculative execution methods.
Mitigations include this set along with microcode updates and are
similar to MDS and TAA vulnerabilities: VERW now clears those buffers
too"
* tag 'x86-bugs-2022-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation/mmio: Print SMT warning
KVM: x86/speculation: Disable Fill buffer clear within guests
x86/speculation/mmio: Reuse SRBDS mitigation for SBDS
x86/speculation/srbds: Update SRBDS mitigation selection
x86/speculation/mmio: Add sysfs reporting for Processor MMIO Stale Data
x86/speculation/mmio: Enable CPU Fill buffer clearing on idle
x86/bugs: Group MDS, TAA & Processor MMIO Stale Data mitigations
x86/speculation/mmio: Add mitigation for Processor MMIO Stale Data
x86/speculation: Add a common function for MD_CLEAR mitigation update
x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug
Documentation: Add documentation for Processor MMIO Stale Data
Arm SCMI firmware driver fixes for v5.19
Bunch of fixes to address:
1. Issues reported on RK3568 EVB1 and BPI-R2 pro platforms using SCMI.
More checks were added to validate the firmware response but that
resulted in breaking above platforms, so the checks are relaxed when
for cases where there is no potential memory corruption issues.
2. Possible data leak by reading more than required length from the firmware.
Recent addition of support for v3.1 extended names used larger buffers
in the kernel and used their size to read response from the firmware even
for cases where shorter formats are used. While that is mostly harmless
except when firmware sends malformed non-NULL terminated buffers.
3. Possible issues sending unsupported commands to the firmware.
SENSOR_AXIS_NAME_GET added in v3.1 needs to be used only if the firmware
supports it. While the firmware conformant to the spec must return not
supported error for any unsupported features, it is always safer to
avoid issuing commands that are known to be unsupported.
4. Incorrect error propagation in scmi_voltage_descriptors_get.
Since the return value is not reset for each iteration of the loop, the
error value in the previous iteration will be carried for the current one.
Fix that by not saving the return values into local variable.
5. Some warnings reported by cppcheck
* tag 'scmi-fixes-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scmi: Fix incorrect error propagation in scmi_voltage_descriptors_get
firmware: arm_scmi: Avoid using extended string-buffers sizes if not necessary
firmware: arm_scmi: Fix SENSOR_AXIS_NAME_GET behaviour when unsupported
firmware: arm_scmi: Remove all the unused local variables
firmware: arm_scmi: Relax base protocol sanity checks on the protocol list
Link: https://lore.kernel.org/r/20220614100007.1029881-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Pull workqueue fixes from Tejun Heo:
"Tetsuo's patch to trigger build warnings if system-wide wq's are
flushed along with a TP type update and trivial comment update"
* tag 'wq-for-5.19-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Switch to new kerneldoc syntax for named variable macro argument
workqueue: Fix type of cpu in trace event
workqueue: Wrap flush_workqueue() using a macro
Pull random number generator fixes from Jason Donenfeld:
- A fix for a 5.19 regression for a case in which early device tree
initializes the RNG, which flips a static branch.
On most plaforms, jump labels aren't initialized until much later, so
this caused splats. On a few mailing list threads, we cooked up easy
fixes for arm64, arm32, and risc-v. But then things looked slightly
more involved for xtensa, powerpc, arc, and mips. And at that point,
when we're patching 7 architectures in a place before the console is
even available, it seems like the cost/risk just wasn't worth it.
So random.c works around it now by checking the already exported
`static_key_initialized` boolean, as though somebody already ran into
this issue in the past. I'm not super jazzed about that; it'd be
prettier to not have to complicate downstream code. But I suppose
it's practical.
- A few small code nits and adding a missing __init annotation.
- A change to the default config values to use the cpu and bootloader's
seeds for initializing the RNG earlier.
This brings them into line with what all the distros do (Fedora/RHEL,
Debian, Ubuntu, Gentoo, Arch, NixOS, Alpine, SUSE, and Void... at
least), and moreover will now give us test coverage in various test
beds that might have caught the above device tree bug earlier.
- A change to WireGuard CI's configuration to increase test coverage
around the RNG.
- A documentation comment fix to unrelated maintainerless CRC code that
I was asked to take, I guess because it has to do with polynomials
(which the RNG thankfully no longer uses).
* tag 'random-5.19-rc2-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
wireguard: selftests: use maximum cpu features and allow rng seeding
random: remove rng_has_arch_random()
random: credit cpu and bootloader seeds by default
random: do not use jump labels before they are initialized
random: account for arch randomness in bits
random: mark bootloader randomness code as __init
random: avoid checking crng_ready() twice in random_init()
crc-itu-t: fix typo in CRC ITU-T polynomial comment
The syntax without dots is available since commit 43756e347f
("scripts/kernel-doc: Add support for named variable macro arguments").
The same HTML output is produced with and without this patch.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Pull virtio fixes from Michael Tsirkin:
"Fixes all over the place, most notably fixes for latent bugs in
drivers that got exposed by suppressing interrupts before DRIVER_OK,
which in turn has been done by 8b4ec69d7e ("virtio: harden vring
IRQ")"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
um: virt-pci: set device ready in probe()
vdpa: make get_vq_group and set_group_asid optional
virtio: Fix all occurences of the "the the" typo
vduse: Fix NULL pointer dereference on sysfs access
vringh: Fix loop descriptors check in the indirect cases
vdpa/mlx5: clean up indenting in handle_ctrl_vlan()
vdpa/mlx5: fix error code for deleting vlan
virtio-mmio: fix missing put_device() when vm_cmdline_parent registration failed
vdpa/mlx5: Fix syntax errors in comments
virtio-rng: make device ready before making request
Pull nfsd fixes from Chuck Lever:
"Notable changes:
- There is now a backup maintainer for NFSD
Notable fixes:
- Prevent array overruns in svc_rdma_build_writes()
- Prevent buffer overruns when encoding NFSv3 READDIR results
- Fix a potential UAF in nfsd_file_put()"
* tag 'nfsd-5.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
SUNRPC: Remove pointer type casts from xdr_get_next_encode_buffer()
SUNRPC: Clean up xdr_get_next_encode_buffer()
SUNRPC: Clean up xdr_commit_encode()
SUNRPC: Optimize xdr_reserve_space()
SUNRPC: Fix the calculation of xdr->end in xdr_get_next_encode_buffer()
SUNRPC: Trap RDMA segment overflows
NFSD: Fix potential use-after-free in nfsd_file_put()
MAINTAINERS: reciprocal co-maintainership for file locking and nfsd
Pull device mapper fixes from Mike Snitzer:
- Fix DM core's bioset initialization so that blk integrity pool is
properly setup. Remove now unused bioset_init_from_src.
- Fix DM zoned hang from locking imbalance due to needless check in
clone_endio().
* tag 'for-5.19/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: fix zoned locking imbalance due to needless check in clone_endio
block: remove bioset_init_from_src
dm: fix bio_set allocation
Pull fscache cleanups from David Howells:
- fix checker complaint in afs
- two netfs cleanups:
- netfs_inode calling convention cleanup plus the requisite
documentation changes
- replace the ->cleanup op with a ->free_request op.
This is possible as the I/O request is now always available at
the cleanup point as the stuff to be cleaned up is no longer
passed into the API functions, but rather obtained by ->init_request.
* 'fscache-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
netfs: Rename the netfs_io_request cleanup op and give it an op pointer
netfs: Further cleanups after struct netfs_inode wrapper introduced
afs: Fix some checker issues
The netfs_io_request cleanup op is now always in a position to be given a
pointer to a netfs_io_request struct, so this can be passed in instead of
the mapping and private data arguments (both of which are included in the
struct).
So rename the ->cleanup op to ->free_request (to match ->init_request) and
pass in the I/O pointer.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com
Change the signature of netfs helper functions to take a struct netfs_inode
pointer rather than a struct inode pointer where appropriate, thereby
relieving the need for the network filesystem to convert its internal inode
format down to the VFS inode only for netfslib to bounce it back up. For
type safety, it's better not to do that (and it's less typing too).
Give netfs_write_begin() an extra argument to pass in a pointer to the
netfs_inode struct rather than deriving it internally from the file
pointer. Note that the ->write_begin() and ->write_end() ops are intended
to be replaced in the future by netfslib code that manages this without the
need to call in twice for each page.
netfs_readpage() and similar are intended to be pointed at directly by the
address_space_operations table, so must stick to the signature dictated by
the function pointers there.
Changes
=======
- Updated the kerneldoc comments and documentation [DH].
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/r/CAHk-=wgkwKyNmNdKpQkqZ6DnmUL-x9hp0YBnUGjaPFEAdxDTbw@mail.gmail.com/
Pull folio fixes from Matthew Wilcox:
"Four folio-related fixes:
- Don't release a folio while it's still locked
- Fix a use-after-free after dropping the mmap_lock
- Fix a memory leak when splitting a page
- Fix a kernel-doc warning for struct folio"
* tag 'folio-5.19a' of git://git.infradead.org/users/willy/pagecache:
mm: Add kernel-doc for folio->mlock_count
mm/huge_memory: Fix xarray node memory leak
filemap: Cache the value of vm_flags
filemap: Don't release a locked folio
Pull ATA fixes from Damien Le Moal:
"Several small fixes for rc2:
- Remove unused field in struct ata_port (Hannes)
- Fix a potential (very unlikely) NULL pointer dereference in
ata_host_alloc_pinfo() (Sergey)
- Fix a device reference leak in the pata_octeon_cf driver (Miaoqian)
- Fixes for handling access to the concurrent positioning ranges log
page used with multi-actuator HDDs (Tyler)
- Fix the values shown by the pio_mode and dma_mode sysfs device
attributes (Sergey)
- Update the MAINTAINERS file to add libata sysfs ABI documentation
file (Sergey)"
* tag 'ata-5.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
MAINTAINERS: add ATA sysfs file documentation to libata entry
ata: libata-transport: fix {dma|pio|xfer}_mode sysfs files
libata: fix translation of concurrent positioning ranges
libata: fix reading concurrent positioning ranges log
ata: pata_octeon_cf: Fix refcount leak in octeon_cf_probe
ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()
ata: libata: drop 'sas_last_tag'
Pull xen updates from Juergen Gross:
- a small cleanup removing "export" of an __init function
- a small series adding a new infrastructure for platform flags
- a series adding generic virtio support for Xen guests (frontend side)
* tag 'for-linus-5.19a-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: unexport __init-annotated xen_xlate_map_ballooned_pages()
arm/xen: Assign xen-grant DMA ops for xen-grant DMA devices
xen/grant-dma-ops: Retrieve the ID of backend's domain for DT devices
xen/grant-dma-iommu: Introduce stub IOMMU driver
dt-bindings: Add xen,grant-dma IOMMU description for xen-grant DMA ops
xen/virtio: Enable restricted memory access using Xen grant mappings
xen/grant-dma-ops: Add option to restrict memory access under Xen
xen/grants: support allocating consecutive grants
arm/xen: Introduce xen_setup_dma_ops()
virtio: replace arch_has_restricted_virtio_memory_access()
kernel: add platform_has() infrastructure
Commit b260fccaeb ("firmware: arm_scmi: Add SCMI v3.1 protocol extended
names support") moved all the name string buffers to use the extended buffer
size of 64 instead of the required 16 bytes. While that should be fine if
the firmware terminates the string before 16 bytes, there is possibility
of copying random data if the name is not NULL terminated by the firmware.
SCMI base protocol agent_name/vendor_id/sub_vendor_id are defined by the
specification as NULL-terminated ASCII strings up to 16-bytes in length.
The underlying buffers and message descriptors are currently bigger than
needed; resize them to fit only the strictly needed 16 bytes to avoid
any possible leaks when reading data from the firmware.
Change the size argument of strlcpy to use SCMI_SHORT_NAME_MAX_SIZE always
when dealing with short domain names, so as to limit the possibility that
an ill-formed non-NULL terminated short reply from the SCMI platform
firmware can leak stale content laying in the underlying transport shared
memory area.
While at that, convert all strings handling routines to use the preferred
strscpy.
Link: https://lore.kernel.org/r/20220608095530.497879-1-cristian.marussi@arm.com
Fixes: b260fccaeb ("firmware: arm_scmi: Add SCMI v3.1 protocol extended names support")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
In suspend sequence there is a need to perform stop_rx during suspend
sequence to prevent any asynchronous data over rx line. However this
can cause problem to drivers which dont do re-start_rx during set_termios.
Add new callback start_rx and perform stop_rx only when implementation of
start_rx is present. Also add call to start_rx in resume sequence so that
drivers who come across this problem can make use of this framework.
Fixes: c9d2325cdb ("serial: core: Do stop_rx in suspend path for console if console_suspend is disabled")
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Vijaya Krishna Nivarthi <quic_vnivarth@quicinc.com>
Link: https://lore.kernel.org/r/1654627965-1461-2-git-send-email-quic_vnivarth@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
With arch randomness being used by every distro and enabled in
defconfigs, the distinction between rng_has_arch_random() and
rng_is_initialized() is now rather small. In fact, the places where they
differ are now places where paranoid users and system builders really
don't want arch randomness to be used, in which case we should respect
that choice, or places where arch randomness is known to be broken, in
which case that choice is all the more important. So this commit just
removes the function and its one user.
Reviewed-by: Petr Mladek <pmladek@suse.com> # for vsprintf.c
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
add_bootloader_randomness() and the variables it touches are only used
during __init and not after, so mark these as __init. At the same time,
unexport this, since it's only called by other __init code that's
built-in.
Cc: stable@vger.kernel.org
Fixes: 428826f535 ("fdt: add support for rng-seed")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
