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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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After commit 230e9fc28604 ("slab: add SLAB_ACCOUNT flag"), we need to mark
the inode cache as SLAB_ACCOUNT, similar to commit 5d097056c9a0 ("kmemcg:
account for certain kmem allocations to memcg")
Signed-off-by: Youling Tang <tangyouling@kylinos.cn>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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originally, stack closures were only used synchronously, and with the
original implementation of closure_sync() the ref never hit 0; thus,
closure_put_after_sub() assumes that if the ref hits 0 it's on the debug
list, in debug mode.
that's no longer true with the current implementation of closure_sync,
so we need a new magic so closure_debug_destroy() doesn't pop an assert.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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silly race
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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If drivers don't do this then iommufd will oops invalidation ioctls with
something like:
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
Mem abort info:
ESR = 0x0000000086000004
EC = 0x21: IABT (current EL), IL = 32 bits
SET = 0, FnV = 0
EA = 0, S1PTW = 0
FSC = 0x04: level 0 translation fault
user pgtable: 4k pages, 48-bit VAs, pgdp=0000000101059000
[0000000000000000] pgd=0000000000000000, p4d=0000000000000000
Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP
Modules linked in:
CPU: 2 PID: 371 Comm: qemu-system-aar Not tainted 6.8.0-rc7-gde77230ac23a #9
Hardware name: linux,dummy-virt (DT)
pstate: 81400809 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=-c)
pc : 0x0
lr : iommufd_hwpt_invalidate+0xa4/0x204
sp : ffff800080f3bcc0
x29: ffff800080f3bcf0 x28: ffff0000c369b300 x27: 0000000000000000
x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000
x23: 0000000000000000 x22: 00000000c1e334a0 x21: ffff0000c1e334a0
x20: ffff800080f3bd38 x19: ffff800080f3bd58 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffff8240d6d8
x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000001000000002 x7 : 0000fffeac1ec950 x6 : 0000000000000000
x5 : ffff800080f3bd78 x4 : 0000000000000003 x3 : 0000000000000002
x2 : 0000000000000000 x1 : ffff800080f3bcc8 x0 : ffff0000c6034d80
Call trace:
0x0
iommufd_fops_ioctl+0x154/0x274
__arm64_sys_ioctl+0xac/0xf0
invoke_syscall+0x48/0x110
el0_svc_common.constprop.0+0x40/0xe0
do_el0_svc+0x1c/0x28
el0_svc+0x34/0xb4
el0t_64_sync_handler+0x120/0x12c
el0t_64_sync+0x190/0x194
All existing drivers implement this op for nesting, this is mostly a
bisection aid.
Fixes: 8c6eabae3807 ("iommufd: Add IOMMU_HWPT_INVALIDATE")
Link: https://lore.kernel.org/r/0-v1-e153859bd707+61-iommufd_check_ops_jgg@nvidia.com
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Most writes to configfs handle an optional newline, but do not require
it. By using the number of bytes written as the limit for scnprintf()
it is guaranteed that the final character in the buffer will be
overwritten.
This is expected if it is a newline but is undesirable when a string is
written "as-is" (as libusbgx does, for example).
Update the store function to strip an optional newline, matching the
behaviour of usb_string_copy().
Signed-off-by: John Keeping <jkeeping@inmusicbrands.com>
Link: https://lore.kernel.org/r/20240708142553.3995022-1-jkeeping@inmusicbrands.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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drivers/dio/dio-driver.c:128:11: error: initialization of ‘int (*)(struct device *, const struct device_driver *)’ from incompatible pointer type ‘int (*)(struct device *, struct device_driver *)’ [-Werror=incompatible-pointer-types]
128 | .match = dio_bus_match,
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drivers/dio/dio-driver.c:128:11: note: (near initialization for ‘dio_bus_type.match’)
Reported-by: noreply@ellerman.id.au
Fixes: d69d804845985c29 ("driver core: have match() callback in struct bus_type take a const *")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20240710074452.2841173-1-geert@linux-m68k.org
[ added dio.h change - gregkh ]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replace a comma between expression statements by a semicolon.
Fixes: efc1bb8a6fd5 ("davinci: add power management support")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Fixed array out-of-bounds issues caused by sprintf
by replacing it with snprintf for safer data copying,
ensuring the destination buffer is not overflowed.
Below is the stack trace I encountered during the actual issue:
[ 66.575408s] [pid:5118,cpu4,QThread,4]Kernel panic - not syncing: stack-protector:
Kernel stack is corrupted in: do_hardware_base_addr+0xcc/0xd0 [parport]
[ 66.575408s] [pid:5118,cpu4,QThread,5]CPU: 4 PID: 5118 Comm:
QThread Tainted: G S W O 5.10.97-arm64-desktop #7100.57021.2
[ 66.575439s] [pid:5118,cpu4,QThread,6]TGID: 5087 Comm: EFileApp
[ 66.575439s] [pid:5118,cpu4,QThread,7]Hardware name: HUAWEI HUAWEI QingYun
PGUX-W515x-B081/SP1PANGUXM, BIOS 1.00.07 04/29/2024
[ 66.575439s] [pid:5118,cpu4,QThread,8]Call trace:
[ 66.575469s] [pid:5118,cpu4,QThread,9] dump_backtrace+0x0/0x1c0
[ 66.575469s] [pid:5118,cpu4,QThread,0] show_stack+0x14/0x20
[ 66.575469s] [pid:5118,cpu4,QThread,1] dump_stack+0xd4/0x10c
[ 66.575500s] [pid:5118,cpu4,QThread,2] panic+0x1d8/0x3bc
[ 66.575500s] [pid:5118,cpu4,QThread,3] __stack_chk_fail+0x2c/0x38
[ 66.575500s] [pid:5118,cpu4,QThread,4] do_hardware_base_addr+0xcc/0xd0 [parport]
Signed-off-by: tuhaowen <tuhaowen@uniontech.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20240708080430.8221-1-tuhaowen@uniontech.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in samples/configfs/configfs_sample.o
Add the missing invocation of the MODULE_DESCRIPTION() macro.
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Nacked-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240601-md-samples-configfs-v1-1-83ef2d3c0088@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Adds a misc driver for Marvell CN10K DPI(DMA Engine) device's physical
function which initializes DPI DMA hardware's global configuration and
enables hardware mailbox channels between physical function (PF) and
it's virtual functions (VF). VF device drivers (User space drivers) use
this hw mailbox to communicate any required device configuration on it's
respective VF device. Accordingly, this DPI PF driver provisions the
VF device resources.
At the hardware level, the DPI physical function (PF) acts as a management
interface to setup the VF device resources, VF devices are only provisioned
to handle or control the actual DMA Engine's data transfer capabilities.
Signed-off-by: Vamsi Attunuru <vattunuru@marvell.com>
Reviewed-by: Srujana Challa <schalla@marvell.com>
Link: https://lore.kernel.org/r/20240706153009.3775333-1-vattunuru@marvell.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove function CheckNegative() that returns always true to shorten code.
Signed-off-by: Philipp Hortmann <philipp.hortmann@emerson.com>
Link: https://lore.kernel.org/r/20240709062634.9454-1-philipp.hortmann@emerson.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unused macros.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/7178388b14033c24e9c6a3912a1cf19d342b9b22.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unused macros.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/7e8117fe3d3f82d69897675c36dc9ee229b9f2ad.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unused macros.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/dda48a640142abbddb846bddf656ac5adada2971.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unused macros.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/e04836b646ccd0a97ee0658dc61db7ac748bcb40.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unused macros.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/ac52d73666090a70e8c1edc87e511f1ea2c139e4.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unused macros.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/e01262b91c33d7f0b8370f74d95d688d7c813655.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unused macros.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/59ee254104cee474b4647d605d4b3380829202a5.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Delete file hal_phy_reg_8723b.h to increase overview.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/04db91723915fc5e542a49b37d07ac85f1f853f4.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Move last macro from hal_phy_reg_8723b.h to Hal8192CPhyReg.h to prepare
removal of hal_phy_reg_8723b.h.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/7e1e5591af85a452415fb137767e21d0d1d163a1.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unused and double defined macros.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/a478e607d4fcf22f547594c4a569c27da4fb2645.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unused macros.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/b632a4d6cd05c53b174db4994c3107cfcec42e8d.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unused macros.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/7bab6def02a4a89c481d20547375d894d538458a.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unused macros.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/68933c5020b21a32fdf56552db0460667f1c9113.1720245061.git.philipp.g.hortmann@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The various kthreads thread functions (slot_handler_func, sync_func,
recycle_func) in vchiq_core and vchiq_keepalive_thread_func in
vchiq_arm should be stopped when the module is unloaded.
Previous attempt were made to address this but later reverted [1]
due to VC04 firmware corruption. The issue around
wait_event_interruptible() handling on stopping a kthread has been
handled in the previous commit. Hence, it is now safe to stop kthreads
on module unload, without any firmware corruption.
This also completes the "Fix kernel module support" TODO item, hence
drop it from the list.
[1] commit ebee9ca2f59e ("Revert "staging: vc04_services: vchiq_core: Stop kthreads on shutdown"")
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Tested-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://lore.kernel.org/r/20240703131052.597443-3-umang.jain@ideasonboard.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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wait_event_interruptible() returns if the condition evaluates to true
it receives a signal. However, the current code always assume that the
wait_event_interruptible() returns only when the event is fired.
This should not be the case as wait_event_interruptible() can
return on receiving a signal (with -ERESTARTSYS as return value).
We should consider this and bubble up the return value of
wait_event_interruptible() to exactly know if the wait has failed
and error out. This will also help to properly stop kthreads in the
subsequent patch.
Meanwhile at it, remote_wait_event() is modified to return 0 on success,
and an error code (from wait_event_interruptible()) on failure. The
return value is now checked for remote_wait_event() calls.
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Tested-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://lore.kernel.org/r/20240703131052.597443-2-umang.jain@ideasonboard.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replace a comma between expression statements by a semicolon.
Fixes: 1e5db00687c1 ("gpio: add MC33880 driver")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Link: https://lore.kernel.org/r/20240710082813.2287329-1-nichen@iscas.ac.cn
[Bartosz: fixed the Fixes: tag]
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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The uapi/asm/unistd_{32,64}.h and asm/syscall_table_{32,64}.h headers can
now be generated from scripts/syscall.tbl, which makes this consistent
with the other architectures that have their own syscall.tbl.
riscv has two extra system call that gets added to scripts/syscall.tbl.
The newstat and rlimit entries in the syscall_abis_64 line are for system
calls that were part of the generic ABI when riscv64 got added but are
no longer enabled by default for new architectures. Both riscv32 and
riscv64 also implement memfd_secret, which is optional for all
architectures.
Unlike all the other 32-bit architectures, the time32 and stat64
sets of syscalls are not enabled on riscv32.
Both the user visible side of asm/unistd.h and the internal syscall
table in the kernel should have the same effective contents after this.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The uapi/asm/unistd_32.h and asm/syscall_table_32.h headers can now be
generated from scripts/syscall.tbl, which makes this consistent with
the other architectures that have their own syscall.tbl.
openrisc has one extra system call that gets added to scripts/syscall.tbl.
The time32, stat64, rlimit and renameat entries in the syscall_abis_32
line are for system calls that were part of the generic ABI when
arch/nios2 got added but are no longer enabled by default for new
architectures.
Both the user visible side of asm/unistd.h and the internal syscall
table in the kernel should have the same effective contents after this.
When asm/syscalls.h is included in kernel/fork.c for the purpose of
type checking, the redirection macros cause problems. Move these so
only the references get redirected.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The uapi/asm/unistd_32.h and asm/syscall_table_32.h headers can now be
generated from scripts/syscall.tbl, which makes this consistent with
the other architectures that have their own syscall.tbl.
nios2 has one extra system call that gets added to scripts/syscall.tbl.
The time32, stat64, and rlimit entries in the syscall_abis_32
line are for system calls that were part of the generic ABI when
arch/nios2 got added but are no longer enabled by default for new
architectures.
Both the user visible side of asm/unistd.h and the internal syscall
table in the kernel should have the same effective contents after this.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The uapi/asm/unistd_64.h and asm/syscall_table_64.h headers can now be
generated from scripts/syscall.tbl, which makes this consistent with
the other architectures that have their own syscall.tbl.
Unlike the other architectures using the asm-generic header, loongarch
uses none of the deprecated system calls at the moment.
Both the user visible side of asm/unistd.h and the internal syscall
table in the kernel should have the same effective contents after this.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The uapi/asm/unistd_32.h and asm/syscall_table_32.h headers can now be
generated from scripts/syscall.tbl, which makes this consistent with
the other architectures that have their own syscall.tbl.
The time32, stat64, rlimit and renameat entries in the syscall_abis_32
line are for system calls that were part of the generic ABI when
arch/hexagon got added but are no longer enabled by default for new
architectures.
As a side-effect, calling an unimplemented syscall now return -ENOSYS
rather than branching into a NULL pointer.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The uapi/asm/unistd_32.h and asm/syscall_table_32.h headers can now be
generated from scripts/syscall.tbl, which makes this consistent with
the other architectures that have their own syscall.tbl.
csky has two architecture specific system calls, which I add to
the generic table. The time32, stat64 and rlimit entries in the
syscall_abis_32 line are for system calls that were part of the generic
ABI when arch/csky got added but are no longer enabled by default for
new architectures.
Both the user visible side of asm/unistd.h and the internal syscall
table in the kernel should have the same effective contents after this.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The generated asm/unistd_compat_32.h header file now contains
macros that can be used directly in the vdso and the signal
trampolines, so remove the duplicate definitions.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Change the asm/unistd.h header for arm64 to no longer include
asm-generic/unistd.h itself, but instead generate both the asm/unistd.h
contents and the list of entry points using the syscall.tbl scripts that
we use on most other architectures.
Once his is done for the remaining architectures, the generic unistd.h
header can be removed and the generated tbl file put in its place.
The Makefile changes are more complex than they should be, I need
a little help to improve those. Ideally this should be done in an
architecture-independent way as well.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This is a straight conversion from the old asm/unistd32.h into the
format used by 32-bit arm and most other architectures, calling scripts
to generate the asm/unistd32.h header and a new asm/syscalls32.h headers.
I used a semi-automated text replacement method to do the conversion,
and then used 'vimdiff' to synchronize the whitespace and the (unused)
names of the non-compat syscalls with the arm version.
There are two differences between the generated syscalls names and the
old version:
- the old asm/unistd32.h contained only a __NR_sync_file_range2
entry, while the arm32 version also defines
__NR_arm_sync_file_range with the same number. I added this
duplicate back in asm/unistd32.h.
- __NR__sysctl was removed from the arm64 file a while ago, but
all the tables still contain it. This should probably get removed
everywhere but I added it here for consistency.
On top of that, the arm64 version does not contain any references to
the 32-bit OABI syscalls that are not supported by arm64. If we ever
want to share the file between arm32 and arm64, it would not be
hard to add support for both in one file.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The uapi/asm/unistd_32.h and asm/syscall_table_32.h headers can now be
generated from scripts/syscall.tbl, which makes this consistent with
the other architectures that have their own syscall.tbl.
arc has a couple of architecture specific system calls, which I add to the
generic table. This for some reason includes the deprecated sys_sysfs()
syscall that was presumably added by accident.
The time32, renameat, stat64 and rlimit entries in the syscall_abis_32
entry are for system calls that were part of the generic ABI when arch/arc
got added but are no longer enabled by default for new architectures.
Both the user visible side of asm/unistd.h and the internal syscall
table in the kernel should have the same effective contents after this.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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When clone3() was introduced, it was not obvious how each architecture
deals with setting up the stack and keeping the register contents in
a fork()-like system call, so this was left for the architecture
maintainers to implement, with __ARCH_WANT_SYS_CLONE3 defined by those
that already implement it.
Five years later, we still have a few architectures left that are missing
clone3(), and the macro keeps getting in the way as it's fundamentally
different from all the other __ARCH_WANT_SYS_* macros that are meant
to provide backwards-compatibility with applications using older
syscalls that are no longer provided by default.
Address this by reversing the polarity of the macro, adding an
__ARCH_BROKEN_SYS_CLONE3 macro to all architectures that don't
already provide the syscall, and remove __ARCH_WANT_SYS_CLONE3
from all the other ones.
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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There are 11 copies of arch/*/kernel/syscalls/Makefile that all implement
the same basic logic in a somewhat awkward way.
I tried out various ways of unifying the existing copies and ended up
with something that hooks into the logic for generating the redirections
to asm-generic headers. This gives a nicer syntax of being able to list
the generated files in $(syscall-y) inside of arch/*/include/asm/Kbuild
instead of both $(generated-y) in that place and also in another
Makefile.
The configuration for which syscall.tbl file to use and which ABIs to
enable is now done in arch/*/kernel/Makefile.syscalls. I have done
patches for all architectures and made sure that the new generic
rules implement a superset of all the architecture specific corner
cases.
ince the header file is not specific to asm-generic/*.h redirects
now, I ended up renaming the file to scripts/Makefile.asm-headers.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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In order to integrate the system call header generation with generating
the asm-generic wrappers, restrict the generated headers to those that
actually exist in include/asm-generic/.
The path is already known, so add these as a dependency.
The asm-generic/bugs.h header was removed in commit 61235b24b9cb ("init:
Remove check_bugs() leftovers"), which now causes a build failure, so
drop it from the list.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The list of generated headers is rather outdated, some of these no longer
exist, while others are already listed in include/asm-generic/Kbuild
so there is no need to list them here.
As we start validating the list of headers against the files that exist,
the outdated ones now cause a warning.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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If we start validating the existence of the asm-generic side of
generated headers, this one causes a warning:
make[3]: *** No rule to make target 'arch/um/include/generated/asm/bpf_perf_event.h', needed by 'all'. Stop.
The problem is that the asm-generic header only exists for the uapi
variant, but arch/um has no uapi headers and instead uses the x86
userspace API.
Add a custom file with an explicit redirect to avoid this.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The asm/gpio.h header is gone now that all architectures just use
gpiolib, and so the redirect is no longer valid.
Acked-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This variable is set with the intention of being passed to the
subsequent strcmp() but something went wrong and it was left unused. Use
it now.
Fixes: 91581c4b3f29 ("gpio: virtuser: new virtual testing driver for the GPIO API")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202407092245.BPnW2mr6-lkp@intel.com/
Link: https://lore.kernel.org/r/20240709151235.90523-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Convert Qualcomm IOMMU v0 implementation to yaml format.
iommus part being ommited for the other bindings, as mdp4 one.
Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20240705221520.109540-1-david@ixit.cz
Signed-off-by: Will Deacon <will@kernel.org>
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The helper calculate_psi_aligned_address() is used to convert an arbitrary
range into a size-aligned one.
The aligned_pages variable is calculated from input start and end, but is
not adjusted when the start pfn is not aligned and the mask is adjusted,
which results in an incorrect number of pages returned.
The number of pages is used by qi_flush_piotlb() to flush caches for the
first-stage translation. With the wrong number of pages, the cache is not
synchronized, leading to inconsistencies in some cases.
Fixes: c4d27ffaa8eb ("iommu/vt-d: Add cache tag invalidation helpers")
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20240709152643.28109-3-baolu.lu@linux.intel.com
Signed-off-by: Will Deacon <will@kernel.org>
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