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KBUILD_EXTRA_SYMBOLS makes sense only when building external modules.
Moreover, the modpost sets 'external_module' if the -e option is given.
I replaced $(patsubst %, -e %,...) with simpler $(addprefix -e,...)
while I was here.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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If a build rule fails, the .DELETE_ON_ERROR special target removes the
target, but does nothing for the .*.cmd file, which might be corrupted.
So, .*.cmd files should be included only when the corresponding targets
exist.
Commit 392885ee82d3 ("kbuild: let fixdep directly write to .*.cmd
files") missed to fix up this file.
Fixes: 392885ee82d3 ("kbuild: let fixdep directly write to .*.cmd")
Cc: <stable@vger.kernel.org> # v5.0+
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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CONFIG_PREEMPTION is selected by CONFIG_PREEMPT and by
CONFIG_PREEMPT_RT. Both PREEMPT and PREEMPT_RT require the same
functionality which today depends on CONFIG_PREEMPT.
Change the Kconfig dependency of i810 to !CONFIG_PREEMPTION so the driver
is not accidentally built on a RT kernel.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: dri-devel@lists.freedesktop.org
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/alpine.DEB.2.21.1907262223280.1791@nanos.tec.linutronix.de
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Linux 5.3-rc2
Required for a CONFIG_PREEMPTION fix to i810. :)
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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Commit abbbdf12497d ("replace kill_bdev() with __invalidate_device()")
once did this, but 29eaadc03649 ("nbd: stop using the bdev everywhere")
resurrected kill_bdev() and it has been there since then. So buffer_head
mappings still get killed on a server disconnection, and we can still
hit the BUG_ON on a filesystem on the top of the nbd device.
EXT4-fs (nbd0): mounted filesystem with ordered data mode. Opts: (null)
block nbd0: Receive control failed (result -32)
block nbd0: shutting down sockets
print_req_error: I/O error, dev nbd0, sector 66264 flags 3000
EXT4-fs warning (device nbd0): htree_dirblock_to_tree:979: inode #2: lblock 0: comm ls: error -5 reading directory block
print_req_error: I/O error, dev nbd0, sector 2264 flags 3000
EXT4-fs error (device nbd0): __ext4_get_inode_loc:4690: inode #2: block 283: comm ls: unable to read itable block
EXT4-fs error (device nbd0) in ext4_reserve_inode_write:5894: IO failure
------------[ cut here ]------------
kernel BUG at fs/buffer.c:3057!
invalid opcode: 0000 [#1] SMP PTI
CPU: 7 PID: 40045 Comm: jbd2/nbd0-8 Not tainted 5.1.0-rc3+ #4
Hardware name: Amazon EC2 m5.12xlarge/, BIOS 1.0 10/16/2017
RIP: 0010:submit_bh_wbc+0x18b/0x190
...
Call Trace:
jbd2_write_superblock+0xf1/0x230 [jbd2]
? account_entity_enqueue+0xc5/0xf0
jbd2_journal_update_sb_log_tail+0x94/0xe0 [jbd2]
jbd2_journal_commit_transaction+0x12f/0x1d20 [jbd2]
? __switch_to_asm+0x40/0x70
...
? lock_timer_base+0x67/0x80
kjournald2+0x121/0x360 [jbd2]
? remove_wait_queue+0x60/0x60
kthread+0xf8/0x130
? commit_timeout+0x10/0x10 [jbd2]
? kthread_bind+0x10/0x10
ret_from_fork+0x35/0x40
With __invalidate_device(), I no longer hit the BUG_ON with sync or
unmount on the disconnected device.
Fixes: 29eaadc03649 ("nbd: stop using the bdev everywhere")
Cc: linux-block@vger.kernel.org
Cc: Ratna Manoj Bolla <manoj.br@gmail.com>
Cc: nbd@other.debian.org
Cc: stable@vger.kernel.org
Cc: David Woodhouse <dwmw@amazon.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Munehisa Kamata <kamatam@amazon.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Retrieving PHYs can defer the probe, do not spawn an error when
-EPROBE_DEFER is returned, it is normal behavior.
Fixes: b1a9edbda040 ("ata: libahci: allow to use multiple PHYs")
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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[root@localhost ~]# ./liburing/test/link
QEMU Standard PC report that:
[ 29.379892] CPU: 0 PID: 84 Comm: kworker/u2:2 Not tainted 5.3.0-rc2-00051-g4010b622f1d2-dirty #86
[ 29.379902] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
[ 29.379913] Workqueue: io_ring-wq io_sq_wq_submit_work
[ 29.379929] Call Trace:
[ 29.379953] dump_stack+0xa9/0x10e
[ 29.379970] ? io_sq_wq_submit_work+0xbf4/0xe90
[ 29.379986] print_address_description.cold.6+0x9/0x317
[ 29.379999] ? io_sq_wq_submit_work+0xbf4/0xe90
[ 29.380010] ? io_sq_wq_submit_work+0xbf4/0xe90
[ 29.380026] __kasan_report.cold.7+0x1a/0x34
[ 29.380044] ? io_sq_wq_submit_work+0xbf4/0xe90
[ 29.380061] kasan_report+0xe/0x12
[ 29.380076] io_sq_wq_submit_work+0xbf4/0xe90
[ 29.380104] ? io_sq_thread+0xaf0/0xaf0
[ 29.380152] process_one_work+0xb59/0x19e0
[ 29.380184] ? pwq_dec_nr_in_flight+0x2c0/0x2c0
[ 29.380221] worker_thread+0x8c/0xf40
[ 29.380248] ? __kthread_parkme+0xab/0x110
[ 29.380265] ? process_one_work+0x19e0/0x19e0
[ 29.380278] kthread+0x30b/0x3d0
[ 29.380292] ? kthread_create_on_node+0xe0/0xe0
[ 29.380311] ret_from_fork+0x3a/0x50
[ 29.380635] Allocated by task 209:
[ 29.381255] save_stack+0x19/0x80
[ 29.381268] __kasan_kmalloc.constprop.6+0xc1/0xd0
[ 29.381279] kmem_cache_alloc+0xc0/0x240
[ 29.381289] io_submit_sqe+0x11bc/0x1c70
[ 29.381300] io_ring_submit+0x174/0x3c0
[ 29.381311] __x64_sys_io_uring_enter+0x601/0x780
[ 29.381322] do_syscall_64+0x9f/0x4d0
[ 29.381336] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 29.381633] Freed by task 84:
[ 29.382186] save_stack+0x19/0x80
[ 29.382198] __kasan_slab_free+0x11d/0x160
[ 29.382210] kmem_cache_free+0x8c/0x2f0
[ 29.382220] io_put_req+0x22/0x30
[ 29.382230] io_sq_wq_submit_work+0x28b/0xe90
[ 29.382241] process_one_work+0xb59/0x19e0
[ 29.382251] worker_thread+0x8c/0xf40
[ 29.382262] kthread+0x30b/0x3d0
[ 29.382272] ret_from_fork+0x3a/0x50
[ 29.382569] The buggy address belongs to the object at ffff888067172140
which belongs to the cache io_kiocb of size 224
[ 29.384692] The buggy address is located 120 bytes inside of
224-byte region [ffff888067172140, ffff888067172220)
[ 29.386723] The buggy address belongs to the page:
[ 29.387575] page:ffffea00019c5c80 refcount:1 mapcount:0 mapping:ffff88806ace5180 index:0x0
[ 29.387587] flags: 0x100000000000200(slab)
[ 29.387603] raw: 0100000000000200 dead000000000100 dead000000000122 ffff88806ace5180
[ 29.387617] raw: 0000000000000000 00000000800c000c 00000001ffffffff 0000000000000000
[ 29.387624] page dumped because: kasan: bad access detected
[ 29.387920] Memory state around the buggy address:
[ 29.388771] ffff888067172080: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
[ 29.390062] ffff888067172100: fc fc fc fc fc fc fc fc fb fb fb fb fb fb fb fb
[ 29.391325] >ffff888067172180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 29.392578] ^
[ 29.393480] ffff888067172200: fb fb fb fb fc fc fc fc fc fc fc fc fc fc fc fc
[ 29.394744] ffff888067172280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
[ 29.396003] ==================================================================
[ 29.397260] Disabling lock debugging due to kernel taint
io_sq_wq_submit_work free and read req again.
Cc: Zhengyuan Liu <liuzhengyuan@kylinos.cn>
Cc: linux-block@vger.kernel.org
Cc: stable@vger.kernel.org
Fixes: f7b76ac9d17e ("io_uring: fix counter inc/dec mismatch in async_list")
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Assume the following ftrace code sequence that was patched in earlier by
ftrace_make_call():
PAGE A:
ffc: addr of ftrace_caller()
PAGE B:
000: 0x6fc10080 /* stw,ma r1,40(sp) */
004: 0x48213fd1 /* ldw -18(r1),r1 */
008: 0xe820c002 /* bv,n r0(r1) */
00c: 0xe83f1fdf /* b,l,n .-c,r1 */
When a Code sequences that is to be patched spans a page break, we might
have already cleared the part on the PAGE A. If an interrupt is coming in
during the remap of the fixed mapping to PAGE B, it might execute the
patched function with only parts of the FTRACE code cleared. To prevent
this, clear the jump to our mini trampoline first, and clear the remaining
parts after this. This might also happen when patch_text() patches a
function that it calls during remap.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Cc: <stable@vger.kernel.org> # 5.2+
Signed-off-by: Helge Deller <deller@gmx.de>
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'default_defconfig' is an awkward name since 'defconfig' is the default.
Let's simply say 'defconfig' like other architectures. You can drop the
KBUILD_DEFCONFIG define by following the standard naming.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Helge Deller <deller@gmx.de>
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In fpudispatch.c we see a lot of fall-through warnings, but for this file we
prefer to not mark the switches and instead keep it in it's original state as
it's copied from HP-UX.
Fixes: a035d552a93b ("Makefile: Globally enable fall-through warning")
Signed-off-by: Helge Deller <deller@gmx.de>
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Fix a fall-through warning in fault.c.
Fixes: a035d552a93b ("Makefile: Globally enable fall-through warning")
Signed-off-by: Helge Deller <deller@gmx.de>
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If applespi is enabled, but LEDs class support is not, the build fails:
drivers/input/keyboard/applespi.o: In function `applespi_probe':
applespi.c:(.text+0x1fcd): undefined reference to `devm_led_classdev_register_ext'
Add "depends on LEDS_CLASS" to the Konfig
Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: 038b1a05eae6 ("Input: add Apple SPI keyboard and trackpad driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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This reverts commit 6c5875843b87c3adea2beade9d1b8b3d4523900a.
It triggers a probable compiler bug on clang which leads to crashes.
With GCC it allows the compiler to use a more efficient register
allocation but current GCC versions never do that at any of the current
call sites, so there's no benefit.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Due to commit 4a6d8cf90017 ("powerpc/mm: don't use pte_alloc_kernel()
until slab is available on PPC32"), pte_alloc_kernel() cannot be used
during early KASAN init.
Fix it by using memblock_alloc() instead.
Fixes: 2edb16efc899 ("powerpc/32: Add KASAN support")
Cc: stable@vger.kernel.org # v5.2+
Reported-by: Erhard F. <erhard_f@mailbox.org>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/da89670093651437f27d2975224712e0a130b055.1564552796.git.christophe.leroy@c-s.fr
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git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
We have a lot of fixes, most of them are also applicable to stable.
Notably:
* fix use-after-free issues
* fix DMA mapping API usage errors
* fix frame drop occurring due to reorder buffer handling in
RSS in certain conditions
* fix rate scale locking issues
* disable TX A-MSDU on older NICs as it causes problems and was
never supposed to be supported
* new PCI IDs
* GEO_TX_POWER_LIMIT API issue that many people were hitting
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Mark switch cases where we are expecting to fall through.
This patch fixes the following warning (Building: powerpc):
drivers/macintosh/smu.c: In function 'smu_queue_i2c':
drivers/macintosh/smu.c:854:21: warning: this statement may fall through [-Wimplicit-fallthrough=]
cmd->info.devaddr &= 0xfe;
~~~~~~~~~~~~~~~~~~^~~~~~~
drivers/macintosh/smu.c:855:2: note: here
case SMU_I2C_TRANSFER_STDSUB:
^~~~
Fixes: 0365ba7fb1fa ("[PATCH] ppc64: SMU driver update & i2c support")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190730143704.060a2606@canb.auug.org.au
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88200 and 96000 sampling rate was not enabled on driver, so can't be played.
The error information:
max98373 3-0031：rate 96000 not supported
max98373 3-0031：ASoC: can't set max98373-aif1 hw params: -22
Signed-off-by: fengchunguo <chunguo.feng@amlogic.com>
Link: https://lore.kernel.org/r/20190731074156.5620-1-chunguo.feng@amlogic.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The A64 audio codec uses the original I2S block but the SR and
WSS computation currently assigned is for the newer block.
Fixes: 619c15f7fac9 (ASoC: sun4i-i2s: Change SR and WSS computation)
Signed-off-by: Marcus Cooper <codekipper@gmail.com>
Link: https://lore.kernel.org/r/20190729152130.27955-1-codekipper@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Adding myself to Intel ASoC drivers maintainers list.
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190726181517.27655-1-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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VCN should be used for Vega20 later ASICs while UVD and VCE
are for previous ASICs.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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No VCN DPM bit check as that's different from VCN PG. Also
no extra check for possible double enablement/disablement
as that's already done by VCN.
v2: check return value of smu_feature_set_enabled
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Commonly used for VCN powergate status retrieval for SW SMU.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Enable VCN powergate status report on Raven.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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VCN is widely used in new ASICs and different from tranditional
UVD and VCE.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Coccinelle reports a path that the array "data" is never initialized.
The path skips the checks in the conditional branches when either
of callback functions, read_wave_vgprs and read_wave_sgprs, is not
registered. Later, the uninitialized "data" array is read
in the while-loop below and passed to put_user().
Fix the path by allocating the array with kcalloc().
The patch is simplier than adding a fall-back branch that explicitly
calls memset(data, 0, ...). Also it does not need the multiplication
1024*sizeof(*data) as the size parameter for memset() though there is
no risk of integer overflow.
Signed-off-by: Wang Xiayang <xywang.sjtu@sjtu.edu.cn>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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We always need to drop the ctx reference and should check
for errors first and then dereference the fence pointer.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Building the privcmd code as a loadable module on ARM, we get
a link error due to the private cache management functions:
ERROR: "__sync_icache_dcache" [drivers/xen/xen-privcmd.ko] undefined!
Move the code into a new that is always built in when Xen is enabled,
as suggested by Juergen Gross and Boris Ostrovsky.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Juergen Gross <jgross@suse.com>
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'commit df9bde015a72 ("xen/gntdev.c: convert to use vm_map_pages()")'
breaks gntdev driver. If vma->vm_pgoff > 0, vm_map_pages()
will:
- use map->pages starting at vma->vm_pgoff instead of 0
- verify map->count against vma_pages()+vma->vm_pgoff instead of just
vma_pages().
In practice, this breaks using a single gntdev FD for mapping multiple
grants.
relevant strace output:
[pid 857] ioctl(7, IOCTL_GNTDEV_MAP_GRANT_REF, 0x7ffd3407b6d0) = 0
[pid 857] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, 7, 0) =
0x777f1211b000
[pid 857] ioctl(7, IOCTL_GNTDEV_SET_UNMAP_NOTIFY, 0x7ffd3407b710) = 0
[pid 857] ioctl(7, IOCTL_GNTDEV_MAP_GRANT_REF, 0x7ffd3407b6d0) = 0
[pid 857] mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, 7,
0x1000) = -1 ENXIO (No such device or address)
details here:
https://github.com/QubesOS/qubes-issues/issues/5199
The reason is -> ( copying Marek's word from discussion)
vma->vm_pgoff is used as index passed to gntdev_find_map_index. It's
basically using this parameter for "which grant reference to map".
map struct returned by gntdev_find_map_index() describes just the pages
to be mapped. Specifically map->pages[0] should be mapped at
vma->vm_start, not vma->vm_start+vma->vm_pgoff*PAGE_SIZE.
When trying to map grant with index (aka vma->vm_pgoff) > 1,
__vm_map_pages() will refuse to map it because it will expect map->count
to be at least vma_pages(vma)+vma->vm_pgoff, while it is exactly
vma_pages(vma).
Converting vm_map_pages() to use vm_map_pages_zero() will fix the
problem.
Marek has tested and confirmed the same.
Cc: stable@vger.kernel.org # v5.2+
Fixes: df9bde015a72 ("xen/gntdev.c: convert to use vm_map_pages()")
Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Tested-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Move SMU irq handler register to sw_init as that's totally
software related. Otherwise, it will prevent SMU reset working.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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DPM state relates are not supported on the new SW SMU ASICs. But still
it's not OK to trigger null pointer dereference on accessing them.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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The PCI revision id determines the sku.
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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in this patch,
drm/amd/powerplay: add callback function of get_thermal_temperature_range
the driver missed temperature granularity change on other temperature.
Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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1. the thermal temperature is asic related data, move the code logic to
xxx_ppt.c.
2. replace data structure PP_TemperatureRange with
smu_temperature_range.
3. change temperature uint from temp*1000 to temp (temperature uint).
Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This was missed during the addition of VegaM support
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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We already have tested it before. The second one should be removed.
With this change, the performance should have little improvement.
Link: http://lkml.kernel.org/r/20190730140850.7927-1-changbin.du@gmail.com
Cc: stable@vger.kernel.org
Fixes: 9cd2992f2d6c ("fgraph: Have set_graph_notrace only affect function_graph tracer")
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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These include guards are broken.
Match the #if !define() and #define lines so that they work correctly.
Link: http://lkml.kernel.org/r/20190720103943.16982-1-yamada.masahiro@socionext.com
Fixes: f54d1867005c3 ("dma-buf: Rename struct fence to dma_fence")
Fixes: 2e26ca7150a4f ("tracing: Fix tracepoint.h DECLARE_TRACE() to allow more than one header")
Fixes: e543002f77f46 ("qdisc: add tracepoint qdisc:qdisc_dequeue for dequeued SKBs")
Fixes: 95f295f9fe081 ("dmaengine: tegra: add tracepoints to driver")
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull dax fix from Dan Williams:
"Fix a botched manual patch update that got dropped between testing and
application"
* 'dax-fix-5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
dax: Fix missed wakeup in put_unlocked_entry()
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Also, rename device_synchronous to device_dax_synchronous.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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If a device doesn't support DAX its 'dax_dev' is NULL. Fix
device_synchronous() to first check if dax_dev is NULL before
dereferencing it.
Fixes: 2e9ee0955d3c ("dm: enable synchronous dax")
Reported-by: jencce.kernel@gmail.com
Signed-off-by: Pankaj Gupta <pagupta@redhat.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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The generic VDSO implementation uses the Y2038 safe clock_gettime64() and
clock_getres_time64() syscalls as fallback for 32bit VDSO. This breaks
seccomp setups because these syscalls might be not (yet) allowed.
Implement the 32bit variants which use the legacy syscalls and select the
variant in the core library.
The 64bit time variants are not removed because they are required for the
time64 based vdso accessors.
Fixes: 00b26474c2f1 ("lib/vdso: Provide generic VDSO implementation")
Reported-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reported-by: Paul Bolle <pebolle@tiscali.nl>
Suggested-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lkml.kernel.org/r/20190728131648.971361611@linutronix.de
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The generic VDSO implementation uses the Y2038 safe clock_gettime64() and
clock_getres_time64() syscalls as fallback for 32bit VDSO. This breaks
seccomp setups because these syscalls might be not (yet) allowed.
Implement the 32bit variants which use the legacy syscalls and select the
variant in the core library.
The 64bit time variants are not removed because they are required for the
time64 based vdso accessors.
Fixes: 7ac870747988 ("x86/vdso: Switch to generic vDSO implementation")
Reported-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reported-by: Paul Bolle <pebolle@tiscali.nl>
Suggested-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/20190728131648.879156507@linutronix.de
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To address the regression which causes seccomp to deny applications the
access to clock_gettime64() and clock_getres64() syscalls because they
are not enabled in the existing filters.
That trips over the fact that 32bit VDSOs use the new clock_gettime64() and
clock_getres64() syscalls in the fallback path.
Add a conditional to invoke the 32bit legacy fallback syscalls instead of
the new 64bit variants. The conditional can go away once all architectures
are converted.
Fixes: 00b26474c2f1 ("lib/vdso: Provide generic VDSO implementation")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1907301134470.1738@nanos.tec.linutronix.de
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To allow syscall fallbacks using the legacy 32bit syscall for 32bit VDSO
builds, move the fallback invocation out into the callers.
Split the common code out of __cvdso_clock_gettime/getres() and invoke the
syscall fallback in the 64bit and 32bit variants.
Preparatory work for using legacy syscalls in 32bit VDSO. No functional
change.
Fixes: 00b26474c2f1 ("lib/vdso: Provide generic VDSO implementation")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lkml.kernel.org/r/20190728131648.695579736@linutronix.de
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The 32bit variants of vdso_clock_gettime()/getres() have a NULL pointer
check for the timespec pointer. That's inconsistent vs. 64bit.
But the vdso implementation will never be consistent versus the syscall
because the only case which it can handle is NULL. Any other invalid
pointer will cause a segfault. So special casing NULL is not really useful.
Remove it along with the superflouos syscall fallback invocation as that
will return -EFAULT anyway. That also gets rid of the dubious typecast
which only works because the pointer is NULL.
Fixes: 00b26474c2f1 ("lib/vdso: Provide generic VDSO implementation")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/20190728131648.587523358@linutronix.de
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Set phy device advertising to enable MAC flow control.
Signed-off-by: Xiaofei Shen <xiaofeis@codeaurora.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The livepatching self-tests tweak the dynamic debug config to verify
the kernel log during the tests. Enhance set_dynamic_debug() so that
the config changes are restored when the script exits.
Note this functionality needs to keep in sync with:
- dynamic_debug input/output formatting
- functions affected by set_dynamic_debug()
For example, push_dynamic_debug() transforms:
kernel/livepatch/transition.c:530 [livepatch]klp_init_transition =_ "'%s': initializing %s transition\012"
to the following:
file kernel/livepatch/transition.c line 530 =_
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Tested-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Previously, using "%m" in a ksft_* format string can result in strange
output because the errno value wasn't saved before calling other libc
functions. The solution is to simply save and restore the errno before
we format the user-supplied format string.
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
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Support for handling the PPPOEIOCSFWD ioctl in compat mode was added in
linux-2.5.69 along with hundreds of other commands, but was always broken
sincen only the structure is compatible, but the command number is not,
due to the size being sizeof(size_t), or at first sizeof(sizeof((struct
sockaddr_pppox)), which is different on 64-bit architectures.
Guillaume Nault adds:
And the implementation was broken until 2016 (see 29e73269aa4d ("pppoe:
fix reference counting in PPPoE proxy")), and nobody ever noticed. I
should probably have removed this ioctl entirely instead of fixing it.
Clearly, it has never been used.
Fix it by adding a compat_ioctl handler for all pppoe variants that
translates the command number and then calls the regular ioctl function.
All other ioctl commands handled by pppoe are compatible between 32-bit
and 64-bit, and require compat_ptr() conversion.
This should apply to all stable kernels.
Acked-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Our test suite somtimes provokes the following crash:
Description of problem:
[ 1092.597234] BUG: unable to handle kernel NULL pointer dereference at 00000000000000e8
[ 1092.605072] PGD 0 P4D 0
[ 1092.607620] Oops: 0000 [#1] SMP PTI
[ 1092.611118] CPU: 37 PID: 0 Comm: swapper/37 Kdump: loaded Not tainted 4.18.0-122.el8.x86_64 #1
[ 1092.619724] Hardware name: Dell Inc. PowerEdge R740/08D89F, BIOS 1.3.7 02/08/2018
[ 1092.627215] RIP: 0010:tipc_mcast_filter_msg+0x93/0x2d0 [tipc]
[ 1092.632955] Code: 0f 84 aa 01 00 00 89 cf 4d 01 ca 4c 8b 26 c1 ef 19 83 e7 0f 83 ff 0c 4d 0f 45 d1 41 8b 6a 10 0f cd 4c 39 e6 0f 84 81 01 00 00 <4d> 8b 9c 24 e8 00 00 00 45 8b 13 41 0f ca 44 89 d7 c1 ef 13 83 e7
[ 1092.651703] RSP: 0018:ffff929e5fa83a18 EFLAGS: 00010282
[ 1092.656927] RAX: ffff929e3fb38100 RBX: 00000000069f29ee RCX: 00000000416c0045
[ 1092.664058] RDX: ffff929e5fa83a88 RSI: ffff929e31a28420 RDI: 0000000000000000
[ 1092.671209] RBP: 0000000029b11821 R08: 0000000000000000 R09: ffff929e39b4407a
[ 1092.678343] R10: ffff929e39b4407a R11: 0000000000000007 R12: 0000000000000000
[ 1092.685475] R13: 0000000000000001 R14: ffff929e3fb38100 R15: ffff929e39b4407a
[ 1092.692614] FS: 0000000000000000(0000) GS:ffff929e5fa80000(0000) knlGS:0000000000000000
[ 1092.700702] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1092.706447] CR2: 00000000000000e8 CR3: 000000031300a004 CR4: 00000000007606e0
[ 1092.713579] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1092.720712] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1092.727843] PKRU: 55555554
[ 1092.730556] Call Trace:
[ 1092.733010] <IRQ>
[ 1092.735034] tipc_sk_filter_rcv+0x7ca/0xb80 [tipc]
[ 1092.739828] ? __kmalloc_node_track_caller+0x1cb/0x290
[ 1092.744974] ? dev_hard_start_xmit+0xa5/0x210
[ 1092.749332] tipc_sk_rcv+0x389/0x640 [tipc]
[ 1092.753519] tipc_sk_mcast_rcv+0x23c/0x3a0 [tipc]
[ 1092.758224] tipc_rcv+0x57a/0xf20 [tipc]
[ 1092.762154] ? ktime_get_real_ts64+0x40/0xe0
[ 1092.766432] ? tpacket_rcv+0x50/0x9f0
[ 1092.770098] tipc_l2_rcv_msg+0x4a/0x70 [tipc]
[ 1092.774452] __netif_receive_skb_core+0xb62/0xbd0
[ 1092.779164] ? enqueue_entity+0xf6/0x630
[ 1092.783084] ? kmem_cache_alloc+0x158/0x1c0
[ 1092.787272] ? __build_skb+0x25/0xd0
[ 1092.790849] netif_receive_skb_internal+0x42/0xf0
[ 1092.795557] napi_gro_receive+0xba/0xe0
[ 1092.799417] mlx5e_handle_rx_cqe+0x83/0xd0 [mlx5_core]
[ 1092.804564] mlx5e_poll_rx_cq+0xd5/0x920 [mlx5_core]
[ 1092.809536] mlx5e_napi_poll+0xb2/0xce0 [mlx5_core]
[ 1092.814415] ? __wake_up_common_lock+0x89/0xc0
[ 1092.818861] net_rx_action+0x149/0x3b0
[ 1092.822616] __do_softirq+0xe3/0x30a
[ 1092.826193] irq_exit+0x100/0x110
[ 1092.829512] do_IRQ+0x85/0xd0
[ 1092.832483] common_interrupt+0xf/0xf
[ 1092.836147] </IRQ>
[ 1092.838255] RIP: 0010:cpuidle_enter_state+0xb7/0x2a0
[ 1092.843221] Code: e8 3e 79 a5 ff 80 7c 24 03 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 d7 01 00 00 31 ff e8 a0 6b ab ff fb 66 0f 1f 44 00 00 <48> b8 ff ff ff ff f3 01 00 00 4c 29 f3 ba ff ff ff 7f 48 39 c3 7f
[ 1092.861967] RSP: 0018:ffffaa5ec6533e98 EFLAGS: 00000246 ORIG_RAX: ffffffffffffffdd
[ 1092.869530] RAX: ffff929e5faa3100 RBX: 000000fe63dd2092 RCX: 000000000000001f
[ 1092.876665] RDX: 000000fe63dd2092 RSI: 000000003a518aaa RDI: 0000000000000000
[ 1092.883795] RBP: 0000000000000003 R08: 0000000000000004 R09: 0000000000022940
[ 1092.890929] R10: 0000040cb0666b56 R11: ffff929e5faa20a8 R12: ffff929e5faade78
[ 1092.898060] R13: ffffffffb59258f8 R14: 000000fe60f3228d R15: 0000000000000000
[ 1092.905196] ? cpuidle_enter_state+0x92/0x2a0
[ 1092.909555] do_idle+0x236/0x280
[ 1092.912785] cpu_startup_entry+0x6f/0x80
[ 1092.916715] start_secondary+0x1a7/0x200
[ 1092.920642] secondary_startup_64+0xb7/0xc0
[...]
The reason is that the skb list tipc_socket::mc_method.deferredq only
is initialized for connectionless sockets, while nothing stops arriving
multicast messages from being filtered by connection oriented sockets,
with subsequent access to the said list.
We fix this by initializing the list unconditionally at socket creation.
This eliminates the crash, while the message still is dropped further
down in tipc_sk_filter_rcv() as it should be.
Reported-by: Li Shuang <shuali@redhat.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull pidfd fixes from Christian Brauner:
"This makes setting the exit_state in exit_notify() consistent after
fixing the pidfd polling race pre-rc1. Related to the race fix, this
adds a WARN_ON() to do_notify_pidfd() to catch any future exit_state
races.
Last, this removes an obsolete comment from the pidfd tests"
* tag 'for-linus-20190730' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
exit: make setting exit_state consistent
pidfd: Add warning if exit_state is 0 during notification
pidfd: remove obsolete comments from test
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