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Let's start to kill la.abs in preparation for the subsequent support of
the PIE kernel.
BTW, Re-tab the indention in arch/loongarch/kernel/entry.S for alignment.
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Introduce Kconfig option ARCH_STRICT_ALIGN to make -mstrict-align be
configurable.
Not all LoongArch cores support h/w unaligned access, we can use the
-mstrict-align build parameter to prevent unaligned accesses.
CPUs with h/w unaligned access support:
Loongson-2K2000/2K3000/3A5000/3C5000/3D5000.
CPUs without h/w unaligned access support:
Loongson-2K500/2K1000.
This option is enabled by default to make the kernel be able to run on
all LoongArch systems. But you can disable it manually if you want to
run kernel only on systems with h/w unaligned access support in order to
optimise for performance.
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Under CONFIG_DEBUG_ATOMIC_SLEEP=y and CONFIG_DEBUG_PREEMPT=y, we can see
the following messages on LoongArch, this is because using might_sleep()
in preemption disable context.
[ 0.001127] smp: Bringing up secondary CPUs ...
[ 0.001222] Booting CPU#1...
[ 0.001244] 64-bit Loongson Processor probed (LA464 Core)
[ 0.001247] CPU1 revision is: 0014c012 (Loongson-64bit)
[ 0.001250] FPU1 revision is: 00000000
[ 0.001252] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:283
[ 0.001255] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/1
[ 0.001257] preempt_count: 1, expected: 0
[ 0.001258] RCU nest depth: 0, expected: 0
[ 0.001259] Preemption disabled at:
[ 0.001261] [<9000000000223800>] arch_dup_task_struct+0x20/0x110
[ 0.001272] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.2.0-rc7+ #43
[ 0.001275] Hardware name: Loongson Loongson-3A5000-7A1000-1w-A2101/Loongson-LS3A5000-7A1000-1w-A2101, BIOS vUDK2018-LoongArch-V4.0.05132-beta10 12/13/202
[ 0.001277] Stack : 0072617764726148 0000000000000000 9000000000222f1c 90000001001e0000
[ 0.001286] 90000001001e3be0 90000001001e3be8 0000000000000000 0000000000000000
[ 0.001292] 90000001001e3be8 0000000000000040 90000001001e3cb8 90000001001e3a50
[ 0.001297] 9000000001642000 90000001001e3be8 be694d10ce4139dd 9000000100174500
[ 0.001303] 0000000000000001 0000000000000001 00000000ffffe0a2 0000000000000020
[ 0.001309] 000000000000002f 9000000001354116 00000000056b0000 ffffffffffffffff
[ 0.001314] 0000000000000000 0000000000000000 90000000014f6e90 9000000001642000
[ 0.001320] 900000000022b69c 0000000000000001 0000000000000000 9000000001736a90
[ 0.001325] 9000000100038000 0000000000000000 9000000000222f34 0000000000000000
[ 0.001331] 00000000000000b0 0000000000000004 0000000000000000 0000000000070000
[ 0.001337] ...
[ 0.001339] Call Trace:
[ 0.001342] [<9000000000222f34>] show_stack+0x5c/0x180
[ 0.001346] [<90000000010bdd80>] dump_stack_lvl+0x60/0x88
[ 0.001352] [<9000000000266418>] __might_resched+0x180/0x1cc
[ 0.001356] [<90000000010c742c>] mutex_lock+0x20/0x64
[ 0.001359] [<90000000002a8ccc>] irq_find_matching_fwspec+0x48/0x124
[ 0.001364] [<90000000002259c4>] constant_clockevent_init+0x68/0x204
[ 0.001368] [<900000000022acf4>] start_secondary+0x40/0xa8
[ 0.001371] [<90000000010c0124>] smpboot_entry+0x60/0x64
Here are the complete call chains:
smpboot_entry()
start_secondary()
constant_clockevent_init()
get_timer_irq()
irq_find_matching_fwnode()
irq_find_matching_fwspec()
mutex_lock()
might_sleep()
__might_sleep()
__might_resched()
In order to avoid the above issue, we should break the call chains,
using timer_irq_installed variable as check condition to only call
get_timer_irq() once in constant_clockevent_init() is a simple and
proper way.
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Fix Chinese comma introduced by accident in cpu.h.
Signed-off-by: Jinyang He <hejinyang@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Some of the log messages were printing just the fwnode name. While it's
short, it's not always uniquely identifiable in system. So print the
full path and name to make debugging easier.
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20230225065443.278284-1-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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fw_devlink can sometimes try to create a device link with the consumer
and supplier as the same device. These attempts will fail (correctly),
but are harmless. So, avoid printing an error for these cases. Also, add
more detail to the error message.
Fixes: 3fb16866b51d ("driver core: fw_devlink: Make cycle detection more robust")
Reported-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reported-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20230225064148.274376-1-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When calling soc_device_match() from early_initcall(), bus_kset is still
NULL, causing a crash:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028
...
Call trace:
__lock_acquire+0x530/0x20f0
lock_acquire.part.0+0xc8/0x210
lock_acquire+0x64/0x80
_raw_spin_lock+0x4c/0x60
bus_to_subsys+0x24/0xac
bus_for_each_dev+0x30/0xcc
soc_device_match+0x4c/0xe0
r8a7795_sysc_init+0x18/0x60
rcar_sysc_pd_init+0xb0/0x33c
do_one_initcall+0x128/0x2bc
Before, bus_for_each_dev() handled this gracefully by checking that
the back-pointer to the private structure was valid.
Fix this by adding a NULL check for bus_kset to bus_to_subsys().
Fixes: 83b9148df2c95e23 ("driver core: bus: bus iterator cleanups")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/0a92979f6e790737544638e8a4c19b0564e660a2.1676983596.git.geert+renesas@glider.be
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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LoongArch architecture changes for 6.3 depend on the pci changes
to work well, so merge them to create a base.
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Replace the obsolete and ambiguos macro in_irq() with new
macro in_hardirq().
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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On each context switch we save the FPU registers on stack
of old process and restore FPU registers from the stack of new one.
That allows us to avoid doing that each time we enter/leave the
kernel mode; however, that can get suboptimal in some cases.
For one thing, we don't need to bother saving anything
for kernel threads. For another, if between entering and leaving
the kernel a thread gives CPU up more than once, it will do
useless work, saving the same values every time, only to discard
the saved copy as soon as it returns from switch_to().
Alternative solution:
* move the array we save into from switch_stack to thread_info
* have a (thread-synchronous) flag set when we save them
* have another flag set when they should be restored on return to userland.
* do *NOT* save/restore them in do_switch_stack()/undo_switch_stack().
* restore on the exit to user mode if the restore flag had
been set. Clear both flags.
* on context switch, entry to fork/clone/vfork, before entry into do_signal()
and on entry into straced syscall save the registers and set the 'saved' flag
unless it had been already set.
* on context switch set the 'restore' flag as well.
* have copy_thread() set both flags for child, so the registers would be
restored once the child returns to userland.
* use the saved data in setup_sigcontext(); have restore_sigcontext() set both flags
and copy from sigframe to save area.
* teach ptrace to look for FPU registers in thread_info instead of
switch_stack.
* teach isolated accesses to FPU registers (rdfpcr, wrfpcr, etc.)
to check the 'saved' flag (under preempt_disable()) and work with the save area
if it's been set; if 'saved' flag is found upon write access, set 'restore' flag
as well.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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gzip_mark() and gzip_release() are gone; there used to be two
forward declarations of each and the patch removing those suckers
had left one of each behind...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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Just memcmp() with ELFMAG - that's the normal way to do it in userland
code, which that thing is. Besides, that has the benefit of actually
building - str_has_prefix() is *NOT* present in <string.h>.
Fixes: 5f14596e55de "alpha: Replace strncmp with str_has_prefix"
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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Type 3 instruction fault (FPU insn with FPU disabled) is handled
by quietly enabling FPU and returning. Which is fine, except that
we need to do that both for fault in userland and in the kernel;
the latter *can* legitimately happen - all it takes is this:
.global _start
_start:
call_pal 0xae
lda $0, 0
ldq $0, 0($0)
- call_pal CLRFEN to clear "FPU enabled" flag and arrange for
a signal delivery (SIGSEGV in this case).
Fixed by moving the handling of type 3 into the common part of
do_entIF(), before we check for kernel vs. user mode.
Incidentally, check for kernel mode is unidiomatic; the normal
way to do that is !user_mode(regs). The difference is that
the open-coded variant treats any of bits 63..3 of regs->ps being
set as "it's user mode" while the normal approach is to check just
the bit 3. PS is a 4-bit register and regs->ps always will have
bits 63..4 clear, so the open-code variant here is actually equivalent
to !user_mode(regs). Harder to follow, though...
Reproducer above will crash any box where CLRFEN is not ignored by
PAL (== any actual hardware, AFAICS; PAL used in qemu doesn't
bother implementing that crap).
Cc: stable@vger.kernel.org # all way back...
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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Use semicolons and braces.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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Signed-off-by: Matt Turner <mattst88@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro:
"Assorted stuff that didn't fit anywhere else"
* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
nsfs: repair kernel-doc for ns_match()
nsfs: add compat ioctl handler
fs/cramfs: Convert kmap() to kmap_local_data()
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull ipc namespace update from Al Viro:
"Rik's patches reducing the amount of synchronize_rcu() triggered by
ipc namespace destruction.
I've some pending stuff reducing that on the normal umount side, but
it's nowhere near ready and Rik's stuff shouldn't be held back due to
conflicts - I'll just redo the parts of my series that stray into
ipc/*"
* 'work.namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
ipc,namespace: batch free ipc_namespace structures
ipc,namespace: make ipc namespace allocation wait for pending free
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull alpha updates from Al Viro:
"FEN (floating-point enable) fault fix deals with a really old oopsable
braino, the rest is alpha/boot compile fixes and minor cleaning up"
* 'work.alpha' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
alpha/boot/misc: trim unused declarations
alpha/boot/tools/objstrip: fix the check for ELF header
alpha/boot: fix the breakage from -isystem series...
alpha: fix FEN fault handling
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull sysv updates from Al Viro:
"Fabio's 'switch to kmap_local_page()' patchset (originally after the
ext2 counterpart, with a lot of cleaning up done to it; as the matter
of fact, ext2 side is in need of similar cleanups - calling
conventions there are bloody awful).
Plus the equivalents of minix stuff..."
* 'work.sysv' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
sysv: fix handling of delete_entry and set_link failures
fs/sysv: Replace kmap() with kmap_local_page()
fs/sysv: Use dir_put_page() in sysv_rename()
fs/sysv: Change the signature of dir_get_page()
fs/sysv: Use the offset_in_page() helper
sysv: don't flush page immediately for DIRSYNC directories
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull minix updates from Al Viro:
"Assorted fixes - mostly Christoph's"
* 'work.minix' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
minix_rename(): minix_delete_entry() might fail
minix: don't flush page immediately for DIRSYNC directories
minix: fix error handling in minix_set_link
minix: fix error handling in minix_delete_entry
minix: move releasing pages into unlink and rename
minix: make minix_new_inode() return error as ERR_PTR(-E...)
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When setting the XPS map value for TX queues, use the index of the
transmit queue.
Previously, the function was passing the index of the loop that iterates
over all queues (RX and TX). This was causing invalid XPS map values.
Fixes: 6831582937bd ("ibmvnic: Toggle between queue types in affinity mapping")
Signed-off-by: Nick Child <nnac123@linux.ibm.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://lore.kernel.org/r/20230223153944.44969-1-nnac123@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Replace "sendpage" with "sendfile". Remove comment about
ENOBUFS when the sockopt hasn't been set; experimentation
indicates that this is not true.
Signed-off-by: nick black <dankamongmen@gmail.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/Y/gg/EhIIjugLdd3@schwarzgerat.orthanc
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire
Pull soundwire updates from Vinod Koul:
"This is a small update which features a bit of core changes and driver
updates in Intel and cadence driver.
Core:
- sdw_transfer_defer() API change to drop an argument
- Reset page address rework
- Export sdw_nwrite_no_pm and sdw_nread_no_pm APIs
Drivers:
- Cadence and related intel driver updates for FIFO handling and low
level msg transfers"
* tag 'soundwire-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
soundwire: cadence: further simplify low-level xfer_msg_defer() callback
soundwire: cadence: use directly bus sdw_defer structure
soundwire: bus: remove sdw_defer argument in sdw_transfer_defer()
soundwire: stream: use consistent pattern for freeing buffers
soundwire: bus: Remove unused reset_page_addr() callback
soundwire: bus: Don't zero page registers after every transaction
soundwire: bus_type: Avoid lockdep assert in sdw_drv_probe()
soundwire: stream: Move remaining register accesses over to no_pm
soundwire: debugfs: Switch to sdw_read_no_pm
soundwire: Provide build stubs for common functions
soundwire: bus: export sdw_nwrite_no_pm and sdw_nread_no_pm functions
soundwire: cadence: remove unused sdw_cdns_master_ops declaration
soundwire: enable optional clock registers for SoundWire 1.2 devices
ASoC/soundwire: remove is_sdca boolean property
soundwire: cadence: Drain the RX FIFO after an IO timeout
soundwire: cadence: Remove wasted space in response_buf
soundwire: cadence: Don't overflow the command FIFOs
soundwire: intel: remove DAI startup/shutdown
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git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Pull phy updates from Vinod Koul:
"This features a bunch of new device support, a couple of new drivers,
yaml conversion and updates of a few drivers.
Core support:
- New devm_of_phy_optional_get() API with users and conversion
New hardware support:
- Mediatek MT7986 phy support
- Qualcomm SM8550 UFS, PCIe, combo phy support, SM6115 / SM4250 USB3
phy support, SM6350 combo phy support, SM6125 UFS PHY support amd
SM8350 & SM8450 combo phy support
- Qualcomm SNPS eUSB2 eUSB2 repeater drivers
- Allwinner F1C100s USB PHY support
- Tegra xusb support for Tegra234
Updates:
- Yaml conversion for Qualcomm pcie2 phy and usb-hsic-phy
- G4 mode support in Qualcomm UFS phy and support for various SoCs
- Yaml conversion for Meson usb2 phy
- TI Type C support for usb phy for j721
- Yaml conversion for Tegra xusb binding"
* tag 'phy-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (106 commits)
phy: qcom: phy-qcom-snps-eusb2: Add support for eUSB2 repeater
phy: qcom: Add QCOM SNPS eUSB2 repeater driver
dt-bindings: phy: qcom,snps-eusb2-phy: Add phys property for the repeater
dt-bindings: phy: Add qcom,snps-eusb2-repeater schema file
dt-bindings: phy: amlogic,g12a-usb3-pcie-phy: add missing optional phy-supply property
phy: rockchip-typec: Fix unsigned comparison with less than zero
phy: rockchip-typec: fix tcphy_get_mode error case
phy: qcom: snps-eusb2: Add missing headers
phy: qcom-qmp-combo: Add support for SM8550
phy: qcom-qmp: Add v6 DP register offsets
phy: qcom-qmp: pcs-usb: Add v6 register offsets
dt-bindings: phy: qcom,sc8280xp-qmp-usb43dp: Document SM8550 compatible
phy: qcom: Add QCOM SNPS eUSB2 driver
dt-bindings: phy: Add qcom,snps-eusb2-phy schema file
phy: qcom-qmp-pcie: Add support for SM8550 g3x2 and g4x2 PCIEs
phy: qcom-qmp: qserdes-lane-shared: Add v6 register offsets
phy: qcom-qmp: qserdes-txrx: Add v6.20 register offsets
phy: qcom-qmp: pcs-pcie: Add v6.20 register offsets
phy: qcom-qmp: pcs-pcie: Add v6 register offsets
phy: qcom-qmp: pcs: Add v6.20 register offsets
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
"A new driver, couple of device support and binding conversion along
with bunch of driver updates are the main features of this.
New hardware support:
- TI AM62Ax controller support
- Xilinx xdma driver
- Qualcomm SM6125, SM8550, QDU1000/QRU1000 GPI controller
Updates:
- Runtime pm support for at_xdmac driver
- IMX sdma binding conversion to yaml and HDMI audio support
- IMX mxs binding conversion to yaml"
* tag 'dmaengine-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (35 commits)
dmaengine: idma64: Update bytes_transferred field
dmaengine: imx-sdma: Set DMA channel to be private
dmaengine: dw: Move check for paused channel to dwc_get_residue()
dmaengine: ptdma: check for null desc before calling pt_cmd_callback
dmaengine: dw-axi-dmac: Do not dereference NULL structure
dmaengine: idxd: Fix default allowed read buffers value in group
dmaengine: sf-pdma: pdma_desc memory leak fix
dmaengine: Simplify dmaenginem_async_device_register() function
dmaengine: use sysfs_emit() to instead of scnprintf()
dmaengine: Make an order in struct dma_device definition
dt-bindings: dma: cleanup examples - indentation, lowercase hex
dt-bindings: dma: drop unneeded quotes
dmaengine: xilinx: xdma: Add user logic interrupt support
dmaengine: xilinx: xdma: Add xilinx xdma driver
dmaengine: drivers: Use devm_platform_ioremap_resource()
dmaengine: at_xdmac: remove empty line
dmaengine: at_xdmac: add runtime pm support
dmaengine: at_xdmac: align properly function members
dmaengine: ppc4xx: Convert to use sysfs_emit()/sysfs_emit_at() APIs
dmaengine: sun6i: Set the maximum segment size
...
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- new drivers for HPE GXP and Loongson 2K/LS7A
- bigger refactorings for i801 and xiic
- gpio driver gained ACPI and SDA-write only support
- the core converted some OF helpers to fwnode helpers
- usual bunch of driver updates
* tag 'i2c-for-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (52 commits)
MAINTAINERS: Add HPE GXP I2C Support
i2c: Add GXP SoC I2C Controller
dt-bindings: i2c: Add hpe,gxp-i2c
i2c: xiic: Remove some dead code
i2c: xiic: Add SCL frequency configuration support
i2c: xiic: Update compatible with new IP version
dt-bindings: i2c: xiic: Add 'xlnx,axi-iic-2.1' to compatible
i2c: i801: Call i801_check_post() from i801_access()
i2c: i801: Call i801_check_pre() from i801_access()
i2c: i801: Centralize configuring block commands in i801_block_transaction
i2c: i801: Centralize configuring non-block commands in i801_simple_transaction
i2c: i801: Handle SMBAUXCTL_E32B in i801_block_transaction_by_block only
i2c: i801: Add i801_simple_transaction(), complementing i801_block_transaction()
Documentation: i2c: correct spelling
dt-bindings: i2c: i2c-st: convert to DT schema
i2c: i801: add helper i801_set_hstadd()
i2c: i801: make FEATURE_BLOCK_PROC dependent on FEATURE_BLOCK_BUFFER
i2c: i801: make FEATURE_HOST_NOTIFY dependent on FEATURE_IRQ
i2c: i801: improve interrupt handler
i2c: st: use pm_sleep_ptr to avoid ifdef CONFIG_PM_SLEEP
...
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git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"Nothing special for the power-supply subystem this time.
- power-supply core: remove faulty cooling logic
- convert all sysfs show() handlers from *printf() use sysfs_emit()
- bq25890: add dual-charger support required by Lenovo Yoga Tab 3 Pro
- bq27xxx: fix reporting critical level
- syscon-reboot: add priority property support
- new rt9467 charger driver
- new rt9471 charger driver
- new Odroid Go Ultra poweroff driver
- misc minor fixes and cleanups"
* tag 'for-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (32 commits)
power: reset: odroid-go-ultra: fix I2C dependency
power: supply: leds: explicitly include linux/leds.h
dt-bindings: power: supply: pm8941-coincell: Don't require charging properties
dt-bindings: power: supply: pm8941-coincell: Add PM8998 compatible
power: reset: add Odroid Go Ultra poweroff driver
power: supply: rt9467: Fix spelling mistake "attache" -> "attach"
power: supply: rt9471: fix using wrong ce_gpio in rt9471_probe()
power: supply: max77650: Make max77650_charger_disable() return void
Documentation: power: rt9467: Document exported sysfs entries
power: supply: rt9467: Add Richtek RT9467 charger driver
dt-bindings: power: supply: Add Richtek RT9467 battery charger
Documentation: power: rt9471: Document exported sysfs entries
power: supply: rt9471: Add Richtek RT9471 charger driver
dt-bindings: power: supply: Add Richtek RT9471 battery charger
power: supply: max1721x: Use strscpy() is more robust and safer
power: supply: test-power: use strscpy() instead of strncpy()
power: supply: bq27xxx: fix reporting critical level
power: supply: bq256xx: Init ichg/vbat value with chip default value
power: supply: collie_battery: Convert to GPIO descriptors (part 2)
power: supply: remove faulty cooling logic
...
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI updates from Bjorn Helgaas:
"Enumeration:
- Rework portdrv shutdown so it disables interrupts but doesn't
disable bus mastering, which leads to hangs on Loongson LS7A
- Add mechanism to prevent Max_Read_Request_Size (MRRS) increases,
again to avoid hardware issues on Loongson LS7A (and likely other
devices based on DesignWare IP)
- Ignore devices with a firmware (DT or ACPI) node that says the
device is disabled
Resource management:
- Distribute spare resources to unconfigured hotplug bridges at
boot-time (not just when hot-adding such a bridge), which makes
hot-adding devices to docks work better. Tried this in v6.1 but had
to revert for regressions, so try again
- Fix root bus issue that dropped resources that happened to end
at 0, e.g., [bus 00]
PCI device hotplug:
- Remove device locking when marking device as disconnected so this
doesn't have to wait for concurrent driver bind/unbind to complete
- Quirk more Qualcomm bridges that don't fully implement the PCIe
Slot Status 'Command Completed' bit
Power management:
- Account for _S0W of the target bridge in acpi_pci_bridge_d3() so we
don't miss hot-add notifications for USB4 docks, Thunderbolt, etc
Reset:
- Observe delay after reset, e.g., resuming from system sleep,
regardless of whether a bridge can suspend to D3cold at runtime
- Wait for secondary bus to become ready after a bridge reset
Virtualization:
- Avoid FLR on some AMD FCH AHCI adapters where it doesn't work
- Allow independent IOMMU groups for some Wangxun NICs that prevent
peer-to-peer transactions but don't advertise an ACS Capability
Error handling:
- Configure End-to-End-CRC (ECRC) only if Linux owns the AER
Capability
- Remove redundant Device Control Error Reporting Enable in the AER
service driver since this is already done for all devices during
enumeration
ASPM:
- Add pci_enable_link_state() interface to allow drivers to enable
ASPM link state
Endpoint framework:
- Move dra7xx and tegra194 linkup processing from hard IRQ to
threaded IRQ handler
- Add a separate lock for endpoint controller list of endpoint
function drivers to prevent deadlock in callbacks
- Pass events from endpoint controller to endpoint function drivers
via callbacks instead of notifiers
Synopsys DesignWare eDMA controller driver (acked by Vinod):
- Fix CPU vs PCI address issues
- Fix source vs destination address issues
- Fix issues with interleaved transfer semantics
- Fix channel count initialization issue (issue still exists in
several other drivers)
- Clean up and improve debugfs usage so it will work on platforms
with several eDMA devices
Baikal T-1 PCIe controller driver:
- Set a 64-bit DMA mask
Freescale i.MX6 PCIe controller driver:
- Add i.MX8MM, i.MX8MQ, i.MX8MP endpoint mode DT binding and driver
support
Intel VMD host bridge driver:
- Add quirk to configure PCIe ASPM and LTR. This is normally done by
BIOS, and will be for future products
Marvell MVEBU PCIe controller driver:
- Mark this driver as broken in Kconfig since bugs prevent its daily
usage
MediaTek MT7621 PCIe controller driver:
- Delay PHY port initialization to improve boot reliability for ZBT
WE1326, ZBT WF3526-P, and some Netgear models
Qualcomm PCIe controller driver:
- Add MSM8998 DT compatible string
- Unify MSM8996 and MSM8998 clock orderings
- Add SM8350 DT binding and driver support
- Add IPQ8074 Gen3 DT binding and driver support
- Correct qcom,perst-regs in DT binding
- Add qcom_pcie_host_deinit() so the PHY is powered off and
regulators and clocks are disabled on late host-init errors
Socionext UniPhier Pro5 controller driver:
- Clean up uniphier-ep reg, clocks, resets, and their names in DT
binding
Synopsys DesignWare PCIe controller driver:
- Restrict coherent DMA mask to 32 bits for MSI, but allow controller
drivers to set 64-bit streaming DMA mask
- Add eDMA engine support in both Root Port and Endpoint controllers
Miscellaneous:
- Remove MODULE_LICENSE from boolean drivers so they don't look like
modules so modprobe can complain about them"
* tag 'pci-v6.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (86 commits)
PCI: dwc: Add Root Port and Endpoint controller eDMA engine support
PCI: bt1: Set 64-bit DMA mask
PCI: dwc: Restrict only coherent DMA mask for MSI address allocation
dmaengine: dw-edma: Prepare dw_edma_probe() for builtin callers
dmaengine: dw-edma: Depend on DW_EDMA instead of selecting it
dmaengine: dw-edma: Add mem-mapped LL-entries support
PCI: Remove MODULE_LICENSE so boolean drivers don't look like modules
PCI: hv: Drop duplicate PCI_MSI dependency
PCI/P2PDMA: Annotate RCU dereference
PCI/sysfs: Constify struct kobj_type pci_slot_ktype
PCI: hotplug: Allow marking devices as disconnected during bind/unbind
PCI: pciehp: Add Qualcomm quirk for Command Completed erratum
PCI: qcom: Add IPQ8074 Gen3 port support
dt-bindings: PCI: qcom: Add IPQ8074 Gen3 port
dt-bindings: PCI: qcom: Sort compatibles alphabetically
PCI: qcom: Fix host-init error handling
PCI: qcom: Add SM8350 support
dt-bindings: PCI: qcom: Add SM8350
dt-bindings: PCI: qcom-ep: Correct qcom,perst-regs
dt-bindings: PCI: qcom: Unify MSM8996 and MSM8998 clock order
...
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|
Revise RT9467 compatible name from "richtek,rt9467-charger" to
"richtek,rt9467" because it has to match the "compatible name" in
the source code.
Fixes: e1b4620fb503 ("dt-bindings: power: supply: Add Richtek RT9467 battery charger")
Reported-by: Rob Herring <robh@kernel.org>
Signed-off-by: ChiaEn Wu <chiaen_wu@richtek.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
|
|
Document how the absence of the "present" property in the sysfs
power_supply class should be handled.
Link: https://gitlab.freedesktop.org/upower/upower/-/merge_requests/173
Cc: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
|
|
There is an null pointer check order issue here: if we have to
check !desc and !desc->name anyway, check it before dereferencing it in
pr_warn().
Signed-off-by: qinyu <qinyu32@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
|
|
Pull rdma updates from Jason Gunthorpe:
"Quite a small cycle this time, even with the rc8. I suppose everyone
went to sleep over xmas.
- Minor driver updates for hfi1, cxgb4, erdma, hns, irdma, mlx5, siw,
mana
- inline CQE support for hns
- Have mlx5 display device error codes
- Pinned DMABUF support for irdma
- Continued rxe cleanups, particularly converting the MRs to use
xarray
- Improvements to what can be cached in the mlx5 mkey cache"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (61 commits)
IB/mlx5: Extend debug control for CC parameters
IB/hfi1: Fix sdma.h tx->num_descs off-by-one errors
IB/hfi1: Fix math bugs in hfi1_can_pin_pages()
RDMA/irdma: Add support for dmabuf pin memory regions
RDMA/mlx5: Use query_special_contexts for mkeys
net/mlx5e: Use query_special_contexts for mkeys
net/mlx5: Change define name for 0x100 lkey value
net/mlx5: Expose bits for querying special mkeys
RDMA/rxe: Fix missing memory barriers in rxe_queue.h
RDMA/mana_ib: Fix a bug when the PF indicates more entries for registering memory on first packet
RDMA/rxe: Remove rxe_alloc()
RDMA/cma: Distinguish between sockaddr_in and sockaddr_in6 by size
Subject: RDMA/rxe: Handle zero length rdma
iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry()
RDMA/mlx5: Use rdma_umem_for_each_dma_block()
RDMA/umem: Remove unused 'work' member from struct ib_umem
RDMA/irdma: Cap MSIX used to online CPUs + 1
RDMA/mlx5: Check reg_create() create for errors
RDMA/restrack: Correct spelling
RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish()
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd updates from Jason Gunthorpe:
"Some polishing and small fixes for iommufd:
- Remove IOMMU_CAP_INTR_REMAP, instead rely on the interrupt
subsystem
- Use GFP_KERNEL_ACCOUNT inside the iommu_domains
- Support VFIO_NOIOMMU mode with iommufd
- Various typos
- A list corruption bug if HWPTs are used for attach"
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
iommufd: Do not add the same hwpt to the ioas->hwpt_list twice
iommufd: Make sure to zero vfio_iommu_type1_info before copying to user
vfio: Support VFIO_NOIOMMU with iommufd
iommufd: Add three missing structures in ucmd_buffer
selftests: iommu: Fix test_cmd_destroy_access() call in user_copy
iommu: Remove IOMMU_CAP_INTR_REMAP
irq/s390: Add arch_is_isolated_msi() for s390
iommu/x86: Replace IOMMU_CAP_INTR_REMAP with IRQ_DOMAIN_FLAG_ISOLATED_MSI
genirq/msi: Rename IRQ_DOMAIN_MSI_REMAP to IRQ_DOMAIN_ISOLATED_MSI
genirq/irqdomain: Remove unused irq_domain_check_msi_remap() code
iommufd: Convert to msi_device_has_isolated_msi()
vfio/type1: Convert to iommu_group_has_isolated_msi()
iommu: Add iommu_group_has_isolated_msi()
genirq/msi: Add msi_device_has_isolated_msi()
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
- Consolidate iommu_map/unmap functions.
There have been blocking and atomic variants so far, but that was
problematic as this approach does not scale with required new
variants which just differ in the GFP flags used. So Jason
consolidated this back into single functions that take a GFP
parameter.
- Retire the detach_dev() call-back in iommu_ops
- Arm SMMU updates from Will:
- Device-tree binding updates:
- Cater for three power domains on SM6375
- Document existing compatible strings for Qualcomm SoCs
- Tighten up clocks description for platform-specific
compatible strings
- Enable Qualcomm workarounds for some additional platforms that
need them
- Intel VT-d updates from Lu Baolu:
- Add Intel IOMMU performance monitoring support
- Set No Execute Enable bit in PASID table entry
- Two performance optimizations
- Fix PASID directory pointer coherency
- Fix missed rollbacks in error path
- Cleanups
- Apple t8110 DART support
- Exynos IOMMU:
- Implement better fault handling
- Error handling fixes
- Renesas IPMMU:
- Add device tree bindings for r8a779g0
- AMD IOMMU:
- Various fixes for handling on SNP-enabled systems and
handling of faults with unknown request-ids
- Cleanups and other small fixes
- Various other smaller fixes and cleanups
* tag 'iommu-updates-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (71 commits)
iommu/amd: Skip attach device domain is same as new domain
iommu: Attach device group to old domain in error path
iommu/vt-d: Allow to use flush-queue when first level is default
iommu/vt-d: Fix PASID directory pointer coherency
iommu/vt-d: Avoid superfluous IOTLB tracking in lazy mode
iommu/vt-d: Fix error handling in sva enable/disable paths
iommu/amd: Improve page fault error reporting
iommu/amd: Do not identity map v2 capable device when snp is enabled
iommu: Fix error unwind in iommu_group_alloc()
iommu/of: mark an unused function as __maybe_unused
iommu: dart: DART_T8110_ERROR range should be 0 to 5
iommu/vt-d: Enable IOMMU perfmon support
iommu/vt-d: Add IOMMU perfmon overflow handler support
iommu/vt-d: Support cpumask for IOMMU perfmon
iommu/vt-d: Add IOMMU perfmon support
iommu/vt-d: Support Enhanced Command Interface
iommu/vt-d: Retrieve IOMMU perfmon capability information
iommu/vt-d: Support size of the register set in DRHD
iommu/vt-d: Set No Execute Enable bit in PASID table entry
iommu/vt-d: Remove sva from intel_svm_dev
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
"DT core:
- Add node lifecycle unit tests
- Add of_property_present() helper aligned with fwnode API
- Print more information on reserved regions on boot
- Update dtc to upstream v1.6.1-66-gabbd523bae6e
- Use strscpy() to instead of strncpy() in DT core
- Add option for schema validation on %.dtb targets
Bindings:
- Add/fix support for listing multiple patterns in DT_SCHEMA_FILES
- Rework external memory controller/bus bindings to properly support
controller specific child node properties
- Convert loongson,ls1x-intc, fcs,fusb302, sil,sii8620, Rockchip
RK3399 PCIe, Synquacer I2C, and Synquacer EXIU bindings to DT
schema format
- Add RiscV SBI PMU event mapping binding
- Add missing contraints on Arm SCMI child node allowed properties
- Add a bunch of missing Socionext UniPhier glue block bindings and
example fixes
- Various fixes for duplicate or conflicting type definitions on DT
properties"
* tag 'devicetree-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (66 commits)
dt-bindings: regulator: Add mps,mpq7932 power-management IC
of: dynamic: Fix spelling mistake "kojbect" -> "kobject"
dt-bindings: drop Sagar Kadam from SiFive binding maintainership
dt-bindings: sram: qcom,imem: document sm8450
dt-bindings: interrupt-controller: convert loongson,ls1x-intc.txt to json-schema
dt-bindings: arm: Add Cortex-A715 and X3
of: dynamic: add lifecycle docbook info to node creation functions
of: add consistency check to of_node_release()
of: do not use "%pOF" printk format on node with refcount of zero
of: unittest: add node lifecycle tests
of: update kconfig unittest help
of: add processing of EXPECT_NOT to of_unittest_expect
of: prepare to add processing of EXPECT_NOT to of_unittest_expect
of: Use preferred of_property_read_* functions
of: Use of_property_present() helper
of: Add of_property_present() helper
of: reserved_mem: Use proper binary prefix
dt-bindings: Fix multi pattern support in DT_SCHEMA_FILES
of: reserved-mem: print out reserved-mem details during boot
dt-bindings: serial: restrict possible child node names
...
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|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the large set of driver core changes for 6.3-rc1.
There's a lot of changes this development cycle, most of the work
falls into two different categories:
- fw_devlink fixes and updates. This has gone through numerous review
cycles and lots of review and testing by lots of different devices.
Hopefully all should be good now, and Saravana will be keeping a
watch for any potential regression on odd embedded systems.
- driver core changes to work to make struct bus_type able to be
moved into read-only memory (i.e. const) The recent work with Rust
has pointed out a number of areas in the driver core where we are
passing around and working with structures that really do not have
to be dynamic at all, and they should be able to be read-only
making things safer overall. This is the contuation of that work
(started last release with kobject changes) in moving struct
bus_type to be constant. We didn't quite make it for this release,
but the remaining patches will be finished up for the release after
this one, but the groundwork has been laid for this effort.
Other than that we have in here:
- debugfs memory leak fixes in some subsystems
- error path cleanups and fixes for some never-able-to-be-hit
codepaths.
- cacheinfo rework and fixes
- Other tiny fixes, full details are in the shortlog
All of these have been in linux-next for a while with no reported
problems"
[ Geert Uytterhoeven points out that that last sentence isn't true, and
that there's a pending report that has a fix that is queued up - Linus ]
* tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (124 commits)
debugfs: drop inline constant formatting for ERR_PTR(-ERROR)
OPP: fix error checking in opp_migrate_dentry()
debugfs: update comment of debugfs_rename()
i3c: fix device.h kernel-doc warnings
dma-mapping: no need to pass a bus_type into get_arch_dma_ops()
driver core: class: move EXPORT_SYMBOL_GPL() lines to the correct place
Revert "driver core: add error handling for devtmpfs_create_node()"
Revert "devtmpfs: add debug info to handle()"
Revert "devtmpfs: remove return value of devtmpfs_delete_node()"
driver core: cpu: don't hand-override the uevent bus_type callback.
devtmpfs: remove return value of devtmpfs_delete_node()
devtmpfs: add debug info to handle()
driver core: add error handling for devtmpfs_create_node()
driver core: bus: update my copyright notice
driver core: bus: add bus_get_dev_root() function
driver core: bus: constify bus_unregister()
driver core: bus: constify some internal functions
driver core: bus: constify bus_get_kset()
driver core: bus: constify bus_register/unregister_notifier()
driver core: remove private pointer from struct bus_type
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc and other driver subsystem updates from Greg KH:
"Here is the large set of driver changes for char/misc drivers and
other smaller driver subsystems that flow through this git tree.
Included in here are:
- New IIO drivers and features and improvments in that subsystem
- New hwtracing drivers and additions to that subsystem
- lots of interconnect changes and new drivers as that subsystem
seems under very active development recently. This required also
merging in the icc subsystem changes through this tree.
- FPGA driver updates
- counter subsystem and driver updates
- MHI driver updates
- nvmem driver updates
- documentation updates
- Other smaller driver updates and fixes, full details in the
shortlog
All of these have been in linux-next for a while with no reported
problems"
* tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (223 commits)
scripts/tags.sh: fix incompatibility with PCRE2
firmware: coreboot: Remove GOOGLE_COREBOOT_TABLE_ACPI/OF Kconfig entries
mei: lower the log level for non-fatal failed messages
mei: bus: disallow driver match while dismantling device
misc: vmw_balloon: fix memory leak with using debugfs_lookup()
nvmem: stm32: fix OPTEE dependency
dt-bindings: nvmem: qfprom: add IPQ8074 compatible
nvmem: qcom-spmi-sdam: register at device init time
nvmem: rave-sp-eeprm: fix kernel-doc bad line warning
nvmem: stm32: detect bsec pta presence for STM32MP15x
nvmem: stm32: add OP-TEE support for STM32MP13x
nvmem: core: use nvmem_add_one_cell() in nvmem_add_cells_from_of()
nvmem: core: add nvmem_add_one_cell()
nvmem: core: drop the removal of the cells in nvmem_add_cells()
nvmem: core: move struct nvmem_cell_info to nvmem-provider.h
nvmem: core: add an index parameter to the cell
of: property: add #nvmem-cell-cells property
of: property: make #.*-cells optional for simple props
of: base: add of_parse_phandle_with_optional_args()
net: add helper eth_addr_add()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging driver updates from Greg KH:
"Here is the "boring" staging driver update for 6.3-rc1.
Nothing major in here at all, it's just lots of tiny code cleanups to
bring some of the staging drivers more in line with the real portion
of the kernel (apis and coding style.) Overall we remove more lines of
code than we add, always a nice result.
The big work was done by Martin Kaiser and Philipp Hortmann, both
tackling some of the older wifi drivers, removing unused code and
structures and a file in one case.
Full details of the changes are in the shortlog.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (219 commits)
staging: r8188eu: Revert "staging: r8188eu: simplify rtw_get_ff_hwaddr"
staging: r8188eu: replace hand coded loop with list_for_each_entry
staging: r8188eu: merge _rtw_enqueue_cmd into its caller
most: add maintainer entry
staging: rtl8192e: Use BIT() instead of << for bit field MSR_LINK_MASK
staging: rtl8192e: Rename DM_RxPathSelTable
staging: rtl8192e: Rename diff_TH and disabledRF
staging: rtl8192e: Rename Enable, cck_Rx_path and SS_TH_low
staging: rtl8192e: Rename RateAdaptiveTH.., VeryLowRSSI and WAIotTHVal
staging: rtl8192e: Rename RxPathSelectio.., RateAdaptive.. and RateAdap..
staging: rtl8192e: Rename OFDM_Table.., CCK_Table_.. and RxPathSelecti..
staging: rtl8192e: Rename MacBlkCtrl and remove double definition
staging: rtl8192e: Remove blank lines in r8192E_hw.h, rtl_core.h and ..
staging: rtl8192e: Rename AcmHw_ViqEn, AcmHw_VoqEn and ANAPAR_FOR_8192PciE
staging: r8188eu: bagg_pkt parameter is not used
staging: r8188eu: simplify rtw_get_ff_hwaddr
staging: r8188eu: simplify xmit_buf flags
staging: r8188eu: xmit_buf's ff_hwaddr is not used
staging: r8188eu: remove unused frametag defines
staging: r8188eu: simplify rtw_alloc_xmitframe
...
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Wei reports a crash with an application using polled IO:
PGD 14265e067 P4D 14265e067 PUD 47ec50067 PMD 0
Oops: 0000 [#1] SMP
CPU: 0 PID: 21915 Comm: iocore_0 Kdump: loaded Tainted: G S 5.12.0-0_fbk12_clang_7346_g1bb6f2e7058f #1
Hardware name: Wiwynn Delta Lake MP T8/Delta Lake-Class2, BIOS Y3DLM08 04/10/2022
RIP: 0010:bio_poll+0x25/0x200
Code: 0f 1f 44 00 00 0f 1f 44 00 00 55 41 57 41 56 41 55 41 54 53 48 83 ec 28 65 48 8b 04 25 28 00 00 00 48 89 44 24 20 48 8b 47 08 <48> 8b 80 70 02 00 00 4c 8b 70 50 8b 6f 34 31 db 83 fd ff 75 25 65
RSP: 0018:ffffc90005fafdf8 EFLAGS: 00010292
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 74b43cd65dd66600
RDX: 0000000000000003 RSI: ffffc90005fafe78 RDI: ffff8884b614e140
RBP: ffff88849964df78 R08: 0000000000000000 R09: 0000000000000008
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88849964df00
R13: ffffc90005fafe78 R14: ffff888137d3c378 R15: 0000000000000001
FS: 00007fd195000640(0000) GS:ffff88903f400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000270 CR3: 0000000466121001 CR4: 00000000007706f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
iocb_bio_iopoll+0x1d/0x30
io_do_iopoll+0xac/0x250
__se_sys_io_uring_enter+0x3c5/0x5a0
? __x64_sys_write+0x89/0xd0
do_syscall_64+0x2d/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x94f225d
Code: 24 cc 00 00 00 41 8b 84 24 d0 00 00 00 c1 e0 04 83 e0 10 41 09 c2 8b 33 8b 53 04 4c 8b 43 18 4c 63 4b 0c b8 aa 01 00 00 0f 05 <85> c0 0f 88 85 00 00 00 29 03 45 84 f6 0f 84 88 00 00 00 41 f6 c7
RSP: 002b:00007fd194ffcd88 EFLAGS: 00000202 ORIG_RAX: 00000000000001aa
RAX: ffffffffffffffda RBX: 00007fd194ffcdc0 RCX: 00000000094f225d
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007
RBP: 00007fd194ffcdb0 R08: 0000000000000000 R09: 0000000000000008
R10: 0000000000000001 R11: 0000000000000202 R12: 00007fd269d68030
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
which is due to bio->bi_bdev being NULL. This can happen if we have two
tasks doing polled IO, and task B ends up completing IO from task A if
they are sharing a poll queue. If task B completes the IO and puts the
bio into our cache, then it can allocate that bio again before task A
is done polling for it. As that would necessitate a preempt between the
two tasks, it's enough to just be a bit more careful in checking for
whether or not bio->bi_bdev is NULL.
Reported-and-tested-by: Wei Zhang <wzhang@meta.com>
Cc: stable@vger.kernel.org
Fixes: be4d234d7aeb ("bio: add allocation cache abstraction")
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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This isn't strictly needed in terms of correctness, but it does allow
polling to know if the bio has been put already by a different task
and hence avoid polling something that we don't need to.
Cc: stable@vger.kernel.org
Fixes: be4d234d7aeb ("bio: add allocation cache abstraction")
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial driver updates from Greg KH:
"Here is the big set of serial and tty driver updates for 6.3-rc1.
Once again, Jiri and Ilpo have done a number of core vt and tty/serial
layer cleanups that were much needed and appreciated. Other than that,
it's just a bunch of little tty/serial driver updates:
- qcom-geni-serial driver updates
- liteuart driver updates
- hvcs driver cleanups
- n_gsm updates and additions for new features
- more 8250 device support added
- fpga/dfl update and additions
- imx serial driver updates
- fsl_lpuart updates
- other tiny fixes and updates for serial drivers
All of these have been in linux-next for a while with no reported
problems"
* tag 'tty-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (143 commits)
tty: n_gsm: add keep alive support
serial: imx: remove a redundant check
dt-bindings: serial: snps-dw-apb-uart: add dma & dma-names properties
soc: qcom: geni-se: Move qcom-geni-se.h to linux/soc/qcom/geni-se.h
tty: n_gsm: add TIOCMIWAIT support
tty: n_gsm: add RING/CD control support
tty: n_gsm: mark unusable ioctl structure fields accordingly
serial: imx: get rid of registers shadowing
serial: imx: refine local variables in rxint()
serial: imx: stop using USR2 in FIFO reading loop
serial: imx: remove redundant USR2 read from FIFO reading loop
serial: imx: do not break from FIFO reading loop prematurely
serial: imx: do not sysrq broken chars
serial: imx: work-around for hardware RX flood
serial: imx: factor-out common code to imx_uart_soft_reset()
serial: 8250_pci1xxxx: Add power management functions to quad-uart driver
serial: 8250_pci1xxxx: Add RS485 support to quad-uart driver
serial: 8250_pci1xxxx: Add driver for quad-uart support
serial: 8250_pci: Add serial8250_pci_setup_port definition in 8250_pcilib.c
tty: pcn_uart: fix memory leak with using debugfs_lookup()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt driver updates from Greg KH:
"Here is the big set of USB and Thunderbolt driver changes for 6.3-rc1.
Nothing major in here, just lots of good development, including:
- Thunderbolt additions for new device support and features
- xhci driver updates and cleanups
- USB gadget media driver updates (includes media core changes that
were acked by the v4l2 maintainers)
- lots of other USB gadget driver updates for new features
- dwc3 driver updates and fixes
- minor debugfs leak fixes
- typec driver updates and additions
- dt-bindings conversions to yaml
- other small bugfixes and driver updates
All have been in linux-next for a while with no reported issues"
* tag 'usb-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (237 commits)
usb: dwc3: xilinx: Remove unused of_gpio,h
usb: typec: pd: Add higher capability sysfs for sink PDO
usb: typec: pd: Remove usb_suspend_supported sysfs from sink PDO
usb: dwc3: pci: add support for the Intel Meteor Lake-M
usb: gadget: u_ether: Don't warn in gether_setup_name_default()
usb: gadget: u_ether: Convert prints to device prints
usb: gadget: u_serial: Add null pointer check in gserial_resume
usb: gadget: uvc: fix missing mutex_unlock() if kstrtou8() fails
xhci: host: potential NULL dereference in xhci_generic_plat_probe()
dt-bindings: usb: amlogic,meson-g12a-usb-ctrl: make G12A usb3-phy0 optional
usb: host: fsl-mph-dr-of: reuse device_set_of_node_from_dev
of: device: Do not ignore error code in of_device_uevent_modalias
of: device: Ignore modalias of reused nodes
usb: gadget: configfs: Fix set but not used variable warning
usb: gadget: uvc: Use custom strings if available
usb: gadget: uvc: Allow linking function to string descs
usb: gadget: uvc: Pick up custom string descriptor IDs
usb: gadget: uvc: Allow linking XUs to string descriptors
usb: gadget: configfs: Attach arbitrary strings to cdev
usb: gadget: configfs: Support arbitrary string descriptors
...
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MSG_NOSIGNAL is not applicable for the receiving side, SIGPIPE is
generated when trying to write to a "broken pipe". AF_PACKET's
packet_recvmsg() does enforce this, giving back EINVAL when MSG_NOSIGNAL
is set - making it unuseable in io_uring's recvmsg.
Remove MSG_NOSIGNAL from io_recvmsg_prep().
Cc: stable@vger.kernel.org # v5.10+
Signed-off-by: David Lamparter <equinox@diac24.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230224150123.128346-1-equinox@diac24.net
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Smatch complains that:
smatch warnings:
io_uring/rsrc.c:1262 io_sqe_buffer_register() error: uninitialized symbol 'folio'.
'folio' may be used uninitialized, which can happen if we end up with a
single page mapped. Ensure that we clear folio to NULL at the top so
it's always set.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/202302241432.YML1CD5C-lkp@intel.com/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Jakub Kicinski says:
====================
tools: ynl-gen: fix glitches found by Chuck
A handful of fixes Chuck run into while trying to define the family
for crypto handshakes.
====================
Link: https://lore.kernel.org/r/20230223183141.1422857-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Python will generate its customary cache when running ynl scripts:
?? tools/net/ynl/lib/__pycache__/
Reported-by: Chuck Lever III <chuck.lever@oracle.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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traceback.print_exception() seems tricky to call, we're missing
some argument, so re-raise instead.
Reported-by: Chuck Lever III <chuck.lever@oracle.com>
Fixes: 3aacf8281336 ("tools: ynl: add an object hierarchy to represent parsed spec")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Chuck run into an issue with a single-element attr-set which
only has an attr with value of 0. The search for max attr in
a struct records attrs with value larger than 0 only (max_val
is set to 0 at the start). Adjust the comparison, alternatively
max_val could be init'ed to -1. Somehow picking the last attr
of a value seems like a good idea in general.
Reported-by: Chuck Lever III <chuck.lever@oracle.com>
Fixes: be5bea1cc0bf ("net: add basic C code generators for Netlink")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Since commit d59f6617eef0 ("genirq: Allow fwnode to carry name
information only") an IRQ domain is always given a name during
allocation (e.g. used for the debugfs entry).
Drop the unused fallback name assignment when creating MSI domains.
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230224130509.27814-1-johan+linaro@kernel.org
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