| Age | Commit message (Collapse) | Author |
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Along the eb_lookup_vmas() error path, the return value from
kmem_cache_alloc() was freed using kfree(). Fix it to use the proper
kmem_cache_free() instead.
Fixes: d1b48c1e7184 ("drm/i915: Replace execbuf vma ht with an idr")
Signed-off-by: Xidong Wang <wangxidong_97@163.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: <stable@vger.kernel.org> # v4.14+
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180404093824.9313-1-chris@chris-wilson.co.uk
(cherry picked from commit 6be1187dbffa0027ea379c53f7ca0c782515c610)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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For some firmware variants - specifically 'capture packed stream' - RSS
filters are not valid. We must check if RSS is actually active rather
than merely enabled.
Fixes: 42356d9a137b ("sfc: support RSS spreading of ethtool ntuple filters")
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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xenbus_command_reply() did not actually copy the response string and
leaked stack content instead.
Fixes: 9a6161fe73bd ("xen: return xenstore command failures via response instead of rc")
Signed-off-by: Simon Gaiser <simon@invisiblethingslab.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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Now exynos_drm_fb is just an empty wrapper around drm_framebuffer, we
can drop it.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
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This can be calculated from the GEM BO DMA address as well as the offset
stored in the base framebuffer.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
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Since drm_framebuffer can now store GEM objects directly, place them
there rather than in our own subclass. As this makes the framebuffer
create_handle and destroy functions the same as the GEM framebuffer
helper, we can reuse those.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
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The driver supports internal and external FDD units so the floppy_open
function must not hard-code the drive location.
Cc: Laurent Vivier <lvivier@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: stable@vger.kernel.org # v4.14+
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Reading to the end of a 720K disk results in an IO error instead of EOF
because the block layer thinks the disk has 2880 sectors. (Partly this
is a result of inverted logic of the ONEMEG_MEDIA bit that's now fixed.)
Initialize the density and head count in swim_add_floppy() to agree
with the device size passed to set_capacity() during drive probe.
Call set_capacity() again upon device open, after refreshing the density
and head count values.
Cc: Laurent Vivier <lvivier@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: stable@vger.kernel.org # v4.14+
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The SWIM chip is compatible with GCR-mode Sony 400K/800K drives but
this driver only supports MFM mode. Therefore only Sony FDHD drives
are supported. Skip incompatible drives.
Cc: Laurent Vivier <lvivier@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: stable@vger.kernel.org # v4.14+
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The Sony drive status bits use active-low logic. The swim_readbit()
function converts that to 'C' logic for readability. Hence, the
sense of the names of the status bit macros should not be inverted.
Mostly they are correct. However, the TWOMEG_DRIVE, MFM_MODE and
TWOMEG_MEDIA macros have inverted sense (like MkLinux). Fix this
inconsistency and make the following patches less confusing.
The same problem affects swim3.c so fix that too.
No functional change.
The FDHD drive status bits are documented in sonydriv.cpp from MAME
and in swimiii.h from MkLinux.
Cc: Laurent Vivier <lvivier@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Jens Axboe <axboe@kernel.dk>
Cc: stable@vger.kernel.org # v4.14+
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The 'eject' shell command may send various different ioctl commands.
This leads to error messages on the console even though the FDEJECT
ioctl succeeds.
~# eject floppy
SWIM floppy_ioctl: unknown cmd 21257
SWIM floppy_ioctl: unknown cmd 1
Don't log an error message for an invalid ioctl, just do as the
swim3 driver does and return -ENOTTY.
Cc: Laurent Vivier <lvivier@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: stable@vger.kernel.org # v4.14+
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Cc: Laurent Vivier <lvivier@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: stable@vger.kernel.org # v4.14+
Fixes: 103db8b2dfa5 ("[PATCH] swim: stop sharing request queue across multiple gendisks")
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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In the floppy_find() function in swim.c is a call to
get_disk(swd->unit[drive].disk). The actual parameter to this call
can be a NULL pointer when drive == swd->floppy_count. This causes
an oops in get_disk().
Data read fault at 0x00000198 in Super Data (pc=0x1be5b6)
BAD KERNEL BUSERR
Oops: 00000000
Modules linked in: swim_mod ipv6 mac8390
PC: [<001be5b6>] get_disk+0xc/0x76
SR: 2004 SP: 9a078bc1 a2: 0213ed90
d0: 00000000 d1: 00000000 d2: 00000000 d3: 000000ff
d4: 00000002 d5: 02983590 a0: 02332e00 a1: 022dfd64
Process dd (pid: 285, task=020ab25b)
Frame format=B ssw=074d isc=4a88 isb=6732 daddr=00000198 dobuf=00000000
baddr=001be5bc dibuf=bfffffff ver=f
Stack from 022dfca4:
00000000 0203fc00 0213ed90 022dfcc0 02982936 00000000 00200000 022dfd08
0020f85a 00200000 022dfd64 02332e00 004040fc 00000014 001be77e 022dfd64
00334e4a 001be3f8 0800001d 022dfd64 01c04b60 01c04b70 022aba80 029828f8
02332e00 022dfd2c 001be7ac 0203fc00 00200000 022dfd64 02103a00 01c04b60
01c04b60 0200e400 022dfd68 000e191a 00200000 022dfd64 02103a00 0800001d
00000000 00000003 000b89de 00500000 02103a00 01c04b60 02103a08 01c04c2e
Call Trace: [<02982936>] floppy_find+0x3e/0x4a [swim_mod]
[<00200000>] uart_remove_one_port+0x1a2/0x260
[<0020f85a>] kobj_lookup+0xde/0x132
[<00200000>] uart_remove_one_port+0x1a2/0x260
[<001be77e>] get_gendisk+0x0/0x130
[<00334e4a>] mutex_lock+0x0/0x2e
[<001be3f8>] disk_block_events+0x0/0x6c
[<029828f8>] floppy_find+0x0/0x4a [swim_mod]
[<001be7ac>] get_gendisk+0x2e/0x130
[<00200000>] uart_remove_one_port+0x1a2/0x260
[<000e191a>] __blkdev_get+0x32/0x45a
[<00200000>] uart_remove_one_port+0x1a2/0x260
[<000b89de>] complete_walk+0x0/0x8a
[<000e1e22>] blkdev_get+0xe0/0x29a
[<000e1fdc>] blkdev_open+0x0/0xb0
[<000b89de>] complete_walk+0x0/0x8a
[<000e1fdc>] blkdev_open+0x0/0xb0
[<000e01cc>] bd_acquire+0x74/0x8a
[<000e205c>] blkdev_open+0x80/0xb0
[<000e1fdc>] blkdev_open+0x0/0xb0
[<000abf24>] do_dentry_open+0x1a4/0x322
[<00020000>] __do_proc_douintvec+0x22/0x27e
[<000b89de>] complete_walk+0x0/0x8a
[<000baa62>] link_path_walk+0x0/0x48e
[<000ba3f8>] inode_permission+0x20/0x54
[<000ac0e4>] vfs_open+0x42/0x78
[<000bc372>] path_openat+0x2b2/0xeaa
[<000bc0c0>] path_openat+0x0/0xeaa
[<0004463e>] __irq_wake_thread+0x0/0x4e
[<0003a45a>] task_tick_fair+0x18/0xc8
[<000bd00a>] do_filp_open+0xa0/0xea
[<000abae0>] do_sys_open+0x11a/0x1ee
[<00020000>] __do_proc_douintvec+0x22/0x27e
[<000abbf4>] SyS_open+0x1e/0x22
[<00020000>] __do_proc_douintvec+0x22/0x27e
[<00002b40>] syscall+0x8/0xc
[<00020000>] __do_proc_douintvec+0x22/0x27e
[<0000c00b>] dyadic+0x1/0x28
Code: 4e5e 4e75 4e56 fffc 2f0b 2f02 266e 0008 <206b> 0198 4a88 6732 2428 002c 661e 486b 0058 4eb9 0032 0b96 588f 4a88 672c 2008
Disabling lock debugging due to kernel taint
Fix the array index bounds check to avoid this.
Cc: Laurent Vivier <lvivier@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: stable@vger.kernel.org # v4.14+
Fixes: 8852ecd97488 ("[PATCH] m68k: mac - Add SWIM floppy support")
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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For reasons I don't understand, calling ioremap() then iounmap() on
the SWIM MMIO region causes a hang on 68030 (but not on 68040).
~# modprobe swim_mod
SWIM floppy driver Version 0.2 (2008-10-30)
SWIM device not found !
watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [modprobe:285]
Modules linked in: swim_mod(+)
Format 00 Vector: 0064 PC: 000075aa Status: 2000 Not tainted
ORIG_D0: ffffffff D0: d00c0000 A2: 007c2370 A1: 003f810c
A0: 00040000 D5: d0096800 D4: d0097e00
D3: 00000001 D2: 00000003 D1: 00000000
Non-Maskable Interrupt
Modules linked in: swim_mod(+)
PC: [<000075ba>] __iounmap+0x24/0x10e
SR: 2000 SP: 007abc48 a2: 007c2370
d0: d00c0000 d1: 000001a0 d2: 00000019 d3: 00000001
d4: d0097e00 d5: d0096800 a0: 00040000 a1: 003f810c
Process modprobe (pid: 285, task=007c2370)
Frame format=0
Stack from 007abc7c:
ffffffed 00000000 006a4060 004712e0 007abca0 000076ea d0080000 00080000
010bb4b8 007abcd8 010ba542 d0096000 00000000 00000000 00000001 010bb59c
00000000 007abf30 010bb4b8 0047760a 0047763c 00477612 00616540 007abcec
0020a91a 00477600 0047760a 010bb4cc 007abd18 002092f2 0047760a 00333b06
007abd5c 00000000 0047760a 010bb4cc 00404f90 004776b8 00000001 007abd38
00209446 010bb4cc 0047760a 010bb4cc 0020938e 0031f8be 00616540 007abd64
Call Trace: [<000076ea>] iounmap+0x46/0x5a
[<00080000>] shrink_page_list+0x7f6/0xe06
[<010ba542>] swim_probe+0xe4/0x496 [swim_mod]
[<0020a91a>] platform_drv_probe+0x20/0x5e
[<002092f2>] driver_probe_device+0x21c/0x2b8
[<00333b06>] mutex_lock+0x0/0x2e
[<00209446>] __driver_attach+0xb8/0xce
[<0020938e>] __driver_attach+0x0/0xce
[<0031f8be>] klist_next+0x0/0xa0
[<00207562>] bus_for_each_dev+0x74/0xba
[<000344c0>] blocking_notifier_call_chain+0x0/0x20
[<00333b06>] mutex_lock+0x0/0x2e
[<00208e44>] driver_attach+0x1a/0x1e
[<0020938e>] __driver_attach+0x0/0xce
[<00207e26>] bus_add_driver+0x188/0x234
[<000344c0>] blocking_notifier_call_chain+0x0/0x20
[<00209894>] driver_register+0x58/0x104
[<000344c0>] blocking_notifier_call_chain+0x0/0x20
[<010bd000>] swim_init+0x0/0x2c [swim_mod]
[<0020a7be>] __platform_driver_register+0x38/0x3c
[<010bd028>] swim_init+0x28/0x2c [swim_mod]
[<000020dc>] do_one_initcall+0x38/0x196
[<000344c0>] blocking_notifier_call_chain+0x0/0x20
[<003331cc>] mutex_unlock+0x0/0x3e
[<00333b06>] mutex_lock+0x0/0x2e
[<003331cc>] mutex_unlock+0x0/0x3e
[<00333b06>] mutex_lock+0x0/0x2e
[<003331cc>] mutex_unlock+0x0/0x3e
[<00333b06>] mutex_lock+0x0/0x2e
[<003331cc>] mutex_unlock+0x0/0x3e
[<00333b06>] mutex_lock+0x0/0x2e
[<00075008>] __free_pages+0x0/0x38
[<000045c0>] mangle_kernel_stack+0x30/0xda
[<000344c0>] blocking_notifier_call_chain+0x0/0x20
[<003331cc>] mutex_unlock+0x0/0x3e
[<00333b06>] mutex_lock+0x0/0x2e
[<0005ced4>] do_init_module+0x42/0x266
[<010bd000>] swim_init+0x0/0x2c [swim_mod]
[<000344c0>] blocking_notifier_call_chain+0x0/0x20
[<0005eda0>] load_module+0x1a30/0x1e70
[<0000465d>] mangle_kernel_stack+0xcd/0xda
[<00331c64>] __generic_copy_from_user+0x0/0x46
[<0033256e>] _cond_resched+0x0/0x32
[<00331b9c>] memset+0x0/0x98
[<0033256e>] _cond_resched+0x0/0x32
[<0005f25c>] SyS_init_module+0x7c/0x112
[<00002000>] _start+0x0/0x8
[<00002000>] _start+0x0/0x8
[<00331c82>] __generic_copy_from_user+0x1e/0x46
[<0005f2b2>] SyS_init_module+0xd2/0x112
[<0000465d>] mangle_kernel_stack+0xcd/0xda
[<00002b40>] syscall+0x8/0xc
[<0000465d>] mangle_kernel_stack+0xcd/0xda
[<0008c00c>] pcpu_balance_workfn+0xb2/0x40e
Code: 2200 7419 e4a9 e589 2841 d9fc 0000 1000 <2414> 7203 c282 7602 b681 6600 0096 0242 fe00 0482 0000 0000 e9c0 11c3 ed89 2642
There's no need to call ioremap() for the SWIM address range, as it lies
within the usual IO device region at 0x5000 0000, which has already been
mapped by head.S.
Remove the redundant ioremap() and iounmap() calls to fix the hang.
Cc: Laurent Vivier <lvivier@redhat.com>
Cc: stable@vger.kernel.org # v4.14+
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Acked-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull missed timer updates from Thomas Gleixner:
"This is a branch which got forgotten during the merge window, but it
contains only fixes and hardware enablement. No fundamental changes.
- Various fixes for the imx-tpm clocksource driver
- A new timer driver for the NCPM7xx SoC family"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/drivers/imx-tpm: Add different counter width support
clocksource/drivers/imx-tpm: Correct some registers operation flow
clocksource/drivers/imx-tpm: Fix typo of clock name
dt-bindings: timer: tpm: fix typo of clock name
clocksource/drivers/npcm: Add NPCM7xx timer driver
dt-binding: timer: document NPCM7xx timer DT bindings
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Due to a firmware bug, the hypervisor can send an interrupt to a
transmit or receive queue just prior to a partition migration, not
allowing the device enough time to handle it and send an EOI. When
the partition migrates, the interrupt is lost but an "EOI-pending"
flag for the interrupt line is still set in firmware. No further
interrupts will be sent until that flag is cleared, effectively
freezing that queue. To workaround this, the driver will disable the
hardware interrupt and send an H_EOI signal prior to re-enabling it.
This will flush the pending EOI and allow the driver to continue
operation.
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The new support for the standard _LSR and _LSW methods neglected to also
update the nvdimm_init_config_data() and nvdimm_set_config_data() to
return the translated error code from failed commands. This precision is
necessary because the locked status that was previously returned on
ND_CMD_GET_CONFIG_SIZE commands is now returned on
ND_CMD_{GET,SET}_CONFIG_DATA commands.
If the kernel misses this indication it can inadvertently fall back to
label-less mode when it should otherwise avoid all access to locked
regions.
Cc: <stable@vger.kernel.org>
Fixes: 4b27db7e26cd ("acpi, nfit: add support for the _LSI, _LSR, and...")
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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When parsing the options provided by the user space,
team_nl_cmd_options_set() insert them in a temporary list to send
multiple events with a single message.
While each option's attribute is correctly validated, the code does
not check for duplicate entries before inserting into the event
list.
Exploiting the above, the syzbot was able to trigger the following
splat:
kernel BUG at lib/list_debug.c:31!
invalid opcode: 0000 [#1] SMP KASAN
Dumping ftrace buffer:
(ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 4466 Comm: syzkaller556835 Not tainted 4.16.0+ #17
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:__list_add_valid+0xaa/0xb0 lib/list_debug.c:29
RSP: 0018:ffff8801b04bf248 EFLAGS: 00010286
RAX: 0000000000000058 RBX: ffff8801c8fc7a90 RCX: 0000000000000000
RDX: 0000000000000058 RSI: ffffffff815fbf41 RDI: ffffed0036097e3f
RBP: ffff8801b04bf260 R08: ffff8801b0b2a700 R09: ffffed003b604f90
R10: ffffed003b604f90 R11: ffff8801db027c87 R12: ffff8801c8fc7a90
R13: ffff8801c8fc7a90 R14: dffffc0000000000 R15: 0000000000000000
FS: 0000000000b98880(0000) GS:ffff8801db000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000043fc30 CR3: 00000001afe8e000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__list_add include/linux/list.h:60 [inline]
list_add include/linux/list.h:79 [inline]
team_nl_cmd_options_set+0x9ff/0x12b0 drivers/net/team/team.c:2571
genl_family_rcv_msg+0x889/0x1120 net/netlink/genetlink.c:599
genl_rcv_msg+0xc6/0x170 net/netlink/genetlink.c:624
netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2448
genl_rcv+0x28/0x40 net/netlink/genetlink.c:635
netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline]
netlink_unicast+0x58b/0x740 net/netlink/af_netlink.c:1336
netlink_sendmsg+0x9f0/0xfa0 net/netlink/af_netlink.c:1901
sock_sendmsg_nosec net/socket.c:629 [inline]
sock_sendmsg+0xd5/0x120 net/socket.c:639
___sys_sendmsg+0x805/0x940 net/socket.c:2117
__sys_sendmsg+0x115/0x270 net/socket.c:2155
SYSC_sendmsg net/socket.c:2164 [inline]
SyS_sendmsg+0x29/0x30 net/socket.c:2162
do_syscall_64+0x29e/0x9d0 arch/x86/entry/common.c:287
entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x4458b9
RSP: 002b:00007ffd1d4a7278 EFLAGS: 00000213 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000000001b RCX: 00000000004458b9
RDX: 0000000000000010 RSI: 0000000020000d00 RDI: 0000000000000004
RBP: 00000000004a74ed R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000213 R12: 00007ffd1d4a7348
R13: 0000000000402a60 R14: 0000000000000000 R15: 0000000000000000
Code: 75 e8 eb a9 48 89 f7 48 89 75 e8 e8 d1 85 7b fe 48 8b 75 e8 eb bb 48
89 f2 48 89 d9 4c 89 e6 48 c7 c7 a0 84 d8 87 e8 ea 67 28 fe <0f> 0b 0f 1f
40 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 41
RIP: __list_add_valid+0xaa/0xb0 lib/list_debug.c:29 RSP: ffff8801b04bf248
This changeset addresses the avoiding list_add() if the current
option is already present in the event list.
Reported-and-tested-by: syzbot+4d4af685432dc0e56c91@syzkaller.appspotmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Fixes: 2fcdb2c9e659 ("team: allow to send multiple set events in one message")
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fast forwarding -fixes for 4.17.
Signed-off-by: Sean Paul <seanpaul@chromium.org>
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pcistub_reg_add() is never called in atomic context.
pcistub_reg_add() is only called by pcistub_quirk_add, which is
only set in DRIVER_ATTR().
Despite never getting called from atomic context,
pcistub_reg_add() calls kzalloc() with GFP_ATOMIC,
which does not sleep for allocation.
GFP_ATOMIC is not necessary and can be replaced with GFP_KERNEL,
which can sleep and improve the possibility of sucessful allocation.
This is found by a static analysis tool named DCNS written by myself.
And I also manually check it.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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xen_pcibk_config_quirks_init
xen_pcibk_config_quirks_init() is never called in atomic context.
The call chains ending up at xen_pcibk_config_quirks_init() are:
[1] xen_pcibk_config_quirks_init() <- xen_pcibk_config_init_dev() <-
pcistub_init_device() <- pcistub_seize() <- pcistub_probe()
[2] xen_pcibk_config_quirks_init() <- xen_pcibk_config_init_dev() <-
pcistub_init_device() <- pcistub_init_devices_late() <-
xen_pcibk_init()
pcistub_probe() is only set as ".probe" in struct pci_driver.
xen_pcibk_init() is is only set as a parameter of module_init().
These functions are not called in atomic context.
Despite never getting called from atomic context,
xen_pcibk_config_quirks_init() calls kzalloc() with GFP_ATOMIC,
which does not sleep for allocation.
GFP_ATOMIC is not necessary and can be replaced with GFP_KERNEL,
which can sleep and improve the possibility of sucessful allocation.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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pcistub_device_alloc() is never called in atomic context.
The call chain ending up at pcistub_device_alloc() is:
[1] pcistub_device_alloc() <- pcistub_seize() <- pcistub_probe()
pcistub_probe() is only set as ".probe" in struct pci_driver.
This function is not called in atomic context.
Despite never getting called from atomic context,
pcistub_device_alloc() calls kzalloc() with GFP_ATOMIC,
which does not sleep for allocation.
GFP_ATOMIC is not necessary and can be replaced with GFP_KERNEL,
which can sleep and improve the possibility of sucessful allocation.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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pcistub_init_device() is never called in atomic context.
The call chain ending up at pcistub_init_device() is:
[1] pcistub_init_device() <- pcistub_seize() <- pcistub_probe()
[2] pcistub_init_device() <- pcistub_init_devices_late() <-
xen_pcibk_init()
pcistub_probe() is only set as ".probe" in struct pci_driver.
xen_pcibk_init() is is only set as a parameter of module_init().
These functions are not called in atomic context.
Despite never getting called from atomic context,
pcistub_init_device() calls kzalloc() with GFP_ATOMIC,
which does not sleep for allocation.
GFP_ATOMIC is not necessary and can be replaced with GFP_KERNEL,
which can sleep and improve the possibility of sucessful allocation.
This is found by a static analysis tool named DCNS written by myself.
And I also manually check it.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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pcistub_probe() is never called in atomic context.
This function is only set as ".probe" in struct pci_driver.
Despite never getting called from atomic context,
pcistub_probe() calls kmalloc() with GFP_ATOMIC,
which does not sleep for allocation.
GFP_ATOMIC is not necessary and can be replaced with GFP_KERNEL,
which can sleep and improve the possibility of sucessful allocation.
This is found by a static analysis tool named DCNS written by myself.
And I also manually check it.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
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Marvell's PPv2 controller has a Packet Header parser, which uses a
fixed-size TCAM array of filter entries.
The mvpp2 driver reserves some ranges among the 256 TCAM entries to
perform MAC and VID filtering. The rest of the TCAM ids are freely usable
for other features, such as IPv4 proto matching.
This commit fixes the MVPP2_PE_LAST_FREE_TID define that sets the end of
the "free range", which included the MAC range. This could therefore allow
some other features to use entries dedicated to MAC filtering,
lowering the number of unicast/multicast addresses that could be allowed
before switching to promiscuous mode.
Fixes: 10fea26ce2aa ("net: mvpp2: Add support for unicast filtering")
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is just wrong, sorry. I was trying to fix a static checker
warning and misread the code. The reference taken in macsec_newlink()
is released in macsec_free_netdev() when the netdevice is destroyed.
This reverts commit 5dcd8400884cc4a043a6d4617e042489e5d566a9.
Reported-by: Laura Abbott <labbott@redhat.com>
Fixes: 5dcd8400884c ("macsec: missing dev_put() on error in macsec_newlink()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Check the aspeed timeout status register to see if the system has booted
from the secondary boot source. If so, set the watchdog device
bootstatus flag for "Card previously reset the CPU."
Signed-off-by: Eddie James <eajames@linux.vnet.ibm.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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This patch adds the WDIOF_CARDRESET support for the Renesas platform
watchdog, to know if the board reboot is due to a watchdog reset.
This is done via the WOVF bit (bit 4) of the RWTCSRA register, which
indicates if RWTCNT overflowed, triggering the reset in last boot.
Signed-off-by: Veeraiyan Chidambaram <veeraiyan.chidambaram@in.bosch.com>
[takeshi.kihara.df: changed to read the RWTCSRA register while clock is
enabled]
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Notice that in this particular case I replaced "Fall" with a proper
"Fall through" comment, which is what GCC is expecting to find.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Notice that in this particular case I replaced "Fall" with a proper
"Fall through" comment, which is what GCC is expecting to find.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Notice that in this particular case I replaced "Fall" with a proper
"Fall through" comment, which is what GCC is expecting to find.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Add an option to turn off discard and write zeroes offload support to
avoid deprovisioning a fully provisioned image. When enabled, discard
requests will fail with -EOPNOTSUPP, write zeroes requests will fall
back to manually zeroing.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Tested-by: Hitoshi Kamei <hitoshi.kamei.xm@hitachi.com>
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In order to take full advantage of merging in ceph_file_to_extents(),
allow object set sized I/Os. If the layout is not "fancy", an object
set consists of just one object.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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In some configurations gcc cannot see that rbd_assert(0) leads to an
unreachable code path:
drivers/block/rbd.c: In function 'rbd_img_is_write':
drivers/block/rbd.c:1397:1: error: control reaches end of non-void function [-Werror=return-type]
drivers/block/rbd.c: In function '__rbd_obj_handle_request':
drivers/block/rbd.c:2499:1: error: control reaches end of non-void function [-Werror=return-type]
drivers/block/rbd.c: In function 'rbd_obj_handle_write':
drivers/block/rbd.c:2471:1: error: control reaches end of non-void function [-Werror=return-type]
As the rbd_assert() here shows has no extra information beyond the verbose
BUG(), we can simply use BUG() directly in its place. This is reliably
detected as not returning on any architecture, since it doesn't depend
on the unlikely() comparison that confused gcc.
Fixes: 3da691bf4366 ("rbd: new request handling code")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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currently, the rbd_wait_state_locked() will wait forever if we
can't get our state locked. Example:
rbd map --exclusive test1 --> /dev/rbd0
rbd map test1 --> /dev/rbd1
dd if=/dev/zero of=/dev/rbd1 bs=1M count=1 --> IO blocked
To avoid this problem, this patch introduce a timeout design
in rbd_wait_state_locked(). Then rbd_wait_state_locked() will
return error when we reach a timeout.
This patch allow user to set the lock_timeout in rbd mapping.
Signed-off-by: Dongsheng Yang <dongsheng.yang@easystack.cn>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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In preparation for lock_timeout option, make rbd_wait_state_locked()
return error codes.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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Removing couple of duplicate includes, found by "make includecheck".
That leaves 1 duplicate include in arch/s390/kernel/entry.S, which is
there for a reason (it includes generated asm/syscall_table.h twice).
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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The module exit function of the smsgiucv module uses the incorrect CP
command to disable SMSG messages. The correct command is "SET SMSG OFF".
Use it.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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sclp_early_printk could be used before .bss section is zeroed
(i.e. from als.c during the decompressor phase), therefore values used
by sclp_early_printk should be located in the .data section.
Another reason for that is to avoid potential initrd corruption, if some
code in future would use sclp_early_printk before initrd is moved from
possibly overlapping with .bss section region to a safe location.
Fixes: 0b0d1173d8ae ("s390/sclp: 32 bit event mask compatibility mode")
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of minor (and safe changes) that didn't make the initial
pull request plus some bug fixes.
The status handling code is actually a running regression from the
previous merge window which had an incomplete fix (now reverted) and
most of the remaining bug fixes are for problems older than the
current merge window"
[ Side note: this merge also takes the base kernel git repository to 6+
million objects for the first time. Technically we hit it a couple of
merges ago already if you count all the tag objects, but now it
reaches 6M+ objects reachable from HEAD.
I was joking around that that's when I should switch to 5.0, because
3.0 happened at the 2M mark, and 4.0 happened at 4M objects. But
probably not, even if numerology is about as good a reason as any.
- Linus ]
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: devinfo: Add Microsoft iSCSI target to 1024 sector blacklist
scsi: cxgb4i: silence overflow warning in t4_uld_rx_handler()
scsi: dpt_i2o: Use after free in I2ORESETCMD ioctl
scsi: core: Make scsi_result_to_blk_status() recognize CONDITION MET
scsi: core: Rename __scsi_error_from_host_byte() into scsi_result_to_blk_status()
Revert "scsi: core: return BLK_STS_OK for DID_OK in __scsi_error_from_host_byte()"
scsi: aacraid: Insure command thread is not recursively stopped
scsi: qla2xxx: Correct setting of SAM_STAT_CHECK_CONDITION
scsi: qla2xxx: correctly shift host byte
scsi: qla2xxx: Fix race condition between iocb timeout and initialisation
scsi: qla2xxx: Avoid double completion of abort command
scsi: qla2xxx: Fix small memory leak in qla2x00_probe_one on probe failure
scsi: scsi_dh: Don't look for NULL devices handlers by name
scsi: core: remove redundant assignment to shost->use_blk_mq
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- pass HOSTLDFLAGS when compiling single .c host programs
- build genksyms lexer and parser files instead of using shipped
versions
- rename *-asn1.[ch] to *.asn1.[ch] for suffix consistency
- let the top .gitignore globally ignore artifacts generated by flex,
bison, and asn1_compiler
- let the top Makefile globally clean artifacts generated by flex,
bison, and asn1_compiler
- use safer .SECONDARY marker instead of .PRECIOUS to prevent
intermediate files from being removed
- support -fmacro-prefix-map option to make __FILE__ a relative path
- fix # escaping to prepare for the future GNU Make release
- clean up deb-pkg by using debian tools instead of handrolled
source/changes generation
- improve rpm-pkg portability by supporting kernel-install as a
fallback of new-kernel-pkg
- extend Kconfig listnewconfig target to provide more information
* tag 'kbuild-v4.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kconfig: extend output of 'listnewconfig'
kbuild: rpm-pkg: use kernel-install as a fallback for new-kernel-pkg
Kbuild: fix # escaping in .cmd files for future Make
kbuild: deb-pkg: split generating packaging and build
kbuild: use -fmacro-prefix-map to make __FILE__ a relative path
kbuild: mark $(targets) as .SECONDARY and remove .PRECIOUS markers
kbuild: rename *-asn1.[ch] to *.asn1.[ch]
kbuild: clean up *-asn1.[ch] patterns from top-level Makefile
.gitignore: move *-asn1.[ch] patterns to the top-level .gitignore
kbuild: add %.dtb.S and %.dtb to 'targets' automatically
kbuild: add %.lex.c and %.tab.[ch] to 'targets' automatically
genksyms: generate lexer and parser during build instead of shipping
kbuild: clean up *.lex.c and *.tab.[ch] patterns from top-level Makefile
.gitignore: move *.lex.c *.tab.[ch] patterns to the top-level .gitignore
kbuild: use HOSTLDFLAGS for single .c executables
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We ran into an issue with loop and btrfs, where btrfs would complain about
checksum errors. It turns out that is because we don't handle short reads
at all, we just zero fill the remainder. Worse than that, we don't handle
the filling properly, which results in loop trying to advance a single
bio by much more than its size, since it doesn't take chaining into
account.
Handle short reads appropriately, by simply retrying at the new correct
offset. End the remainder of the request with EIO, if we get a 0 read.
Fixes: bc07c10a3603 ("block: loop: support DIO & AIO")
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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We can always get at the request from the payload, no need to store
a pointer to it.
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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A misconfigured system (e.g. with all interrupts affinitised to all CPUs)
may produce a storm of ARFS steering events. With the existing sfc ARFS
implementation, that could create a backlog of workitems that grinds the
system to a halt. To prevent this, limit the number of workitems that
may be in flight for a given SFC device to 8 (EFX_RPS_MAX_IN_FLIGHT), and
return EBUSY from our ndo_rx_flow_steer method if the limit is reached.
Given this limit, also store the workitems in an array of slots within the
struct efx_nic, rather than dynamically allocating for each request.
The limit should not negatively impact performance, because it is only
likely to be hit in cases where ARFS will be ineffective anyway.
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When we inserted an ARFS filter for ndo_rx_flow_steer(), we didn't know
what the filter ID would be, so we just returned 0. Thus, we must also
pass 0 as the filter ID when calling rps_may_expire_flow() for it, and
rely on the flow_id to identify what we're talking about.
Fixes: 3af0f34290f6 ("sfc: replace asynchronous filter operations")
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Necessary to allow redirecting a flow when the application moves.
Fixes: 3af0f34290f6 ("sfc: replace asynchronous filter operations")
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a new ioctl which forces the the crng to be reseeded.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
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Reported-by: Jann Horn <jannh@google.com>
Fixes: 1e7f583af67b ("random: make /dev/urandom scalable for silly...")
Cc: stable@kernel.org # 4.8+
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jann Horn <jannh@google.com>
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Until the primary_crng is fully initialized, don't initialize the NUMA
crng nodes. Otherwise users of /dev/urandom on NUMA systems before
the CRNG is fully initialized can get very bad quality randomness. Of
course everyone should move to getrandom(2) where this won't be an
issue, but there's a lot of legacy code out there. This related to
CVE-2018-1108.
Reported-by: Jann Horn <jannh@google.com>
Fixes: 1e7f583af67b ("random: make /dev/urandom scalable for silly...")
Cc: stable@kernel.org # 4.8+
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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add_device_randomness() use of crng_fast_load() was highly
problematic. Some callers of add_device_randomness() can pass in a
large amount of static information. This would immediately promote
the crng_init state from 0 to 1, without really doing much to
initialize the primary_crng's internal state with something even
vaguely unpredictable.
Since we don't have the speed constraints of add_interrupt_randomness(),
we can do a better job mixing in the what unpredictability a device
driver or architecture maintainer might see fit to give us, and do it
in a way which does not bump the crng_init_cnt variable.
Also, since add_device_randomness() doesn't bump any entropy
accounting in crng_init state 0, mix the device randomness into the
input_pool entropy pool as well. This is related to CVE-2018-1108.
Reported-by: Jann Horn <jannh@google.com>
Fixes: ee7998c50c26 ("random: do not ignore early device randomness")
Cc: stable@kernel.org # 4.13+
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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