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For automatic module loading (e.g. as it is used with cryptsetup)
an alias "paes" for the paes_s390 kernel module is needed.
Correct the paes_s390 module alias from "aes-all" to "paes".
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Kabylake platform expects modules in a library manifest. After loading
base firmware library manifest is loaded using load library IPC. This is
followed by module load using load multiple modules IPC.
Signed-off-by: Sodhi, VunnyX <vunnyx.sodhi@intel.com>
Signed-off-by: G Kranthi <gudishax.kranthikumar@intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Kabylake uses code loader dma and wait on notification instead of ipc
reply for load library ipc status. So modify the argument of
skl_sst_ipc_load_library to check on flag to wait for ipc reply.
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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For audio kabylake is same as skylake except the module load approach.
This patch registers different dsp_fw_ops for kabylake and next patch
adds the module load support for kabylake.
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Kabylake also uses code loader dma for module load and library load.
skl_transfer_module can be reused. Modify the arguments to include
library index to be passed to lib load ipc and module/lib check to use
correct ipc for lib/module load.
Signed-off-by: G Kranthi <gudishax.kranthikumar@intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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request firmware, strip extended manifest and release library changes
are common to kabylake and APL.
So move these common code to utils to be reused in later patches for
kabylake library load.
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Some skl sst context are not dependent of platform and initializing them
independently for each platform can lead to errors. So optimize by
moving them to a helper function and platform specific init code can
call this.
Signed-off-by: G Kranthi <gudishax.kranthikumar@intel.com>
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add driver for NAU88L24.
Signed-off-by: John Hsu <KCHSU0@nuvoton.com>
Signed-off-by: John Hsu <supercraig0719@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Remove .owner field if calls are used which set it automatically.
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The caller only looks at the scsi_request result field anyway.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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ide_pm_execute_rq exectures a PM request synchronously, and in the failure
case where it calls __blk_end_request_all it never checks the error field
passed to the end_io callback, so don't bother setting it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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The SAS transport queues are only used by bsg, and bsg always looks at
the scsi_request results and never add the error passed in the end_io
callback.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
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Although we do check the completion-status of the request before
actually adding a wait on it (either to its submit fence or its
completion dma-fence), we currently do not check before adding it to the
dependency lists.
In fact, without checking for a completed request we may try to use the
signaler after it has been retired and its dependency tree freed:
[ 60.044057] BUG: KASAN: use-after-free in __list_add_valid+0x1d/0xd0 at addr ffff880348c9e6a0
[ 60.044118] Read of size 8 by task gem_exec_fence/530
[ 60.044164] CPU: 1 PID: 530 Comm: gem_exec_fence Tainted: G E 4.11.0-rc7+ #46
[ 60.044226] Hardware name: ��������������������������������� ���������������������������������/���������������������������������, BIOS RYBDWi35.86A.0246.2
[ 60.044290] Call Trace:
[ 60.044337] dump_stack+0x4d/0x6a
[ 60.044383] kasan_object_err+0x21/0x70
[ 60.044435] kasan_report+0x225/0x4e0
[ 60.044488] ? __list_add_valid+0x1d/0xd0
[ 60.044534] ? kasan_kmalloc+0xad/0xe0
[ 60.044587] __asan_load8+0x5e/0x70
[ 60.044639] __list_add_valid+0x1d/0xd0
[ 60.044788] __i915_priotree_add_dependency+0x67/0x130 [i915]
[ 60.044895] i915_gem_request_await_request+0xa8/0x370 [i915]
[ 60.044974] i915_gem_request_await_dma_fence+0x129/0x140 [i915]
[ 60.045049] i915_gem_do_execbuffer.isra.37+0xb0a/0x26b0 [i915]
[ 60.045077] ? save_stack+0xb1/0xd0
[ 60.045105] ? save_stack_trace+0x1b/0x20
[ 60.045132] ? save_stack+0x46/0xd0
[ 60.045158] ? kasan_kmalloc+0xad/0xe0
[ 60.045184] ? __kmalloc+0xd8/0x670
[ 60.045229] ? drm_ioctl+0x359/0x640 [drm]
[ 60.045256] ? SyS_ioctl+0x41/0x70
[ 60.045330] ? i915_vma_move_to_active+0x540/0x540 [i915]
[ 60.045360] ? tty_insert_flip_string_flags+0xa1/0xf0
[ 60.045387] ? tty_flip_buffer_push+0x63/0x70
[ 60.045414] ? remove_wait_queue+0xa9/0xc0
[ 60.045441] ? kasan_unpoison_shadow+0x35/0x50
[ 60.045467] ? kasan_kmalloc+0xad/0xe0
[ 60.045494] ? kasan_check_write+0x14/0x20
[ 60.045568] i915_gem_execbuffer2+0xdb/0x2a0 [i915]
[ 60.045616] drm_ioctl+0x359/0x640 [drm]
[ 60.045705] ? i915_gem_execbuffer+0x5a0/0x5a0 [i915]
[ 60.045751] ? drm_version+0x150/0x150 [drm]
[ 60.045778] ? compat_start_thread+0x60/0x60
[ 60.045805] ? plist_del+0xda/0x1a0
[ 60.045833] do_vfs_ioctl+0x12e/0x910
[ 60.045860] ? ioctl_preallocate+0x130/0x130
[ 60.045886] ? pci_mmcfg_check_reserved+0xc0/0xc0
[ 60.045913] ? vfs_write+0x196/0x240
[ 60.045939] ? __fget_light+0xa7/0xc0
[ 60.045965] SyS_ioctl+0x41/0x70
[ 60.045991] entry_SYSCALL_64_fastpath+0x17/0x98
[ 60.046017] RIP: 0033:0x7feb2baefc47
[ 60.046042] RSP: 002b:00007fff56d28e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 60.046075] RAX: ffffffffffffffda RBX: 00007fff56d290a8 RCX: 00007feb2baefc47
[ 60.046102] RDX: 00007fff56d29050 RSI: 00000000c0406469 RDI: 0000000000000003
[ 60.046129] RBP: 00007fff56d29050 R08: 000055ecc4cd27d0 R09: 00007feb2bda8600
[ 60.046154] R10: 0000000000000073 R11: 0000000000000246 R12: 00000000c0406469
[ 60.046177] R13: 0000000000000003 R14: 000000000000000f R15: 0000000000000099
[ 60.046203] Object at ffff880348c9e680, in cache i915_dependency size: 64
[ 60.046225] Allocated:
[ 60.046246] PID = 530
[ 60.046269] save_stack_trace+0x1b/0x20
[ 60.046292] save_stack+0x46/0xd0
[ 60.046318] kasan_kmalloc+0xad/0xe0
[ 60.046343] kasan_slab_alloc+0x12/0x20
[ 60.046368] kmem_cache_alloc+0xab/0x650
[ 60.046445] i915_gem_request_await_request+0x88/0x370 [i915]
[ 60.046559] i915_gem_request_await_dma_fence+0x129/0x140 [i915]
[ 60.046705] i915_gem_do_execbuffer.isra.37+0xb0a/0x26b0 [i915]
[ 60.046849] i915_gem_execbuffer2+0xdb/0x2a0 [i915]
[ 60.046936] drm_ioctl+0x359/0x640 [drm]
[ 60.046987] do_vfs_ioctl+0x12e/0x910
[ 60.047038] SyS_ioctl+0x41/0x70
[ 60.047090] entry_SYSCALL_64_fastpath+0x17/0x98
[ 60.047139] Freed:
[ 60.047179] PID = 530
[ 60.047223] save_stack_trace+0x1b/0x20
[ 60.047269] save_stack+0x46/0xd0
[ 60.047317] kasan_slab_free+0x72/0xc0
[ 60.047366] kmem_cache_free+0x39/0x160
[ 60.047512] i915_gem_request_retire+0x83f/0x930 [i915]
[ 60.047657] i915_gem_request_alloc+0x166/0x600 [i915]
[ 60.047799] i915_gem_do_execbuffer.isra.37+0xad8/0x26b0 [i915]
[ 60.047897] i915_gem_execbuffer2+0xdb/0x2a0 [i915]
[ 60.047942] drm_ioctl+0x359/0x640 [drm]
[ 60.047968] do_vfs_ioctl+0x12e/0x910
[ 60.047993] SyS_ioctl+0x41/0x70
[ 60.048019] entry_SYSCALL_64_fastpath+0x17/0x98
[ 60.048044] Memory state around the buggy address:
[ 60.048066] ffff880348c9e580: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[ 60.048105] ffff880348c9e600: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[ 60.048138] >ffff880348c9e680: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[ 60.048170] ^
[ 60.048191] ffff880348c9e700: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
[ 60.048225] ffff880348c9e780: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
Note to hit the use-after-free requires us to be passed back a request
via a fence-array, that is from explicit fencing accumulated into a
sync-file fence-array.
Fixes: 52e542090701 ("drm/i915/scheduler: Record all dependencies upon request construction")
Testcase: igt/gem_exec_fence/expired-history
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170422081537.6468-1-chris@chris-wilson.co.uk
(cherry picked from commit ade0b0c965f59176daddbef9c4717354034f9bce)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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The busy-spin, as the first stage of intel_wait_for_register(), is
currently under suspicion for causing:
[ 62.034926] NMI watchdog: Watchdog detected hard LOCKUP on cpu 1
[ 62.034928] Modules linked in: i2c_dev i915 intel_gtt drm_kms_helper prime_numbers
[ 62.034932] CPU: 1 PID: 183 Comm: kworker/1:2 Not tainted 4.11.0-rc7+ #471
[ 62.034933] Hardware name: / , BIOS PYBSWCEL.86A.0027.2015.0507.1758 05/07/2015
[ 62.034934] Workqueue: pm pm_runtime_work
[ 62.034936] task: ffff880275a04ec0 task.stack: ffffc900002d8000
[ 62.034936] RIP: 0010:__intel_wait_for_register_fw+0x77/0x1a0 [i915]
[ 62.034937] RSP: 0018:ffffc900002dbc38 EFLAGS: 00000082
[ 62.034939] RAX: ffffc90003530094 RBX: 0000000000130094 RCX: 0000000000000001
[ 62.034940] RDX: 00000000000000a1 RSI: ffff88027fd15e58 RDI: 0000000000000000
[ 62.034941] RBP: ffffc900002dbc78 R08: 0000000000000002 R09: 0000000000000000
[ 62.034942] R10: ffffc900002dbc18 R11: ffff880276429dd0 R12: ffff8802707c0000
[ 62.034943] R13: 00000000000000a0 R14: 0000000000000000 R15: 00000000fffefc10
[ 62.034945] FS: 0000000000000000(0000) GS:ffff88027fd00000(0000) knlGS:0000000000000000
[ 62.034945] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 62.034947] CR2: 00007ffd3cd98ff8 CR3: 0000000274c19000 CR4: 00000000001006e0
[ 62.034947] Call Trace:
[ 62.034948] intel_wait_for_register+0x77/0x140 [i915]
[ 62.034949] vlv_suspend_complete+0x23/0x5b0 [i915]
[ 62.034950] intel_runtime_suspend+0x16c/0x2a0 [i915]
[ 62.034950] pci_pm_runtime_suspend+0x50/0x180
[ 62.034951] ? pci_pm_runtime_resume+0xa0/0xa0
[ 62.034952] __rpm_callback+0xc5/0x210
[ 62.034953] rpm_callback+0x1f/0x80
[ 62.034953] ? pci_pm_runtime_resume+0xa0/0xa0
[ 62.034954] rpm_suspend+0x118/0x580
[ 62.034955] pm_runtime_work+0x64/0x90
[ 62.034956] process_one_work+0x1bb/0x3e0
[ 62.034956] worker_thread+0x46/0x4f0
[ 62.034957] ? __schedule+0x18b/0x610
[ 62.034958] kthread+0xff/0x140
[ 62.034958] ? process_one_work+0x3e0/0x3e0
[ 62.034959] ? kthread_create_on_node+
and related hard lockups in CI for byt and bsw.
Note this effectively reverts commits 41ce405e6894 and b27366958869
("drm/i915: Convert wait_for(I915_READ(reg)) to intel_wait_for_register()")
v2: Convert bool allow into a u32 mask for clarity and repeat the
comment on vlv rc6 timing to justify the 3ms timeout used for the wait (Ville)
Fixes: 41ce405e6894 ("drm/i915: Convert wait_for(I915_READ(reg)) to intel_wait_for_register()")
Fixes: b27366958869 ("drm/i915: Convert wait_for(I915_READ(reg)) to intel_wait_for_register()")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100718
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Tomi Sarvela <tomi.p.sarvela@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170421135815.11897-1-chris@chris-wilson.co.uk
Tested-by: Tomi Sarvela <tomi.p.sarvela@intel.com>
(cherry picked from commit 3dd14c04d77d7d702de5aa7157df4cc9417329f3)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Avoid having too large a stack by creating the fake struct inode/file on
the heap instead.
drivers/gpu/drm/i915/selftests/mock_drm.c: In function 'mock_file':
drivers/gpu/drm/i915/selftests/mock_drm.c:46:1: error: the frame size of 1328 bytes is larger than 1280 bytes [-Werror=frame-larger-than=]
drivers/gpu/drm/i915/selftests/mock_drm.c: In function 'mock_file_free':
drivers/gpu/drm/i915/selftests/mock_drm.c:54:1: error: the frame size of 1312 bytes is larger than 1280 bytes [-Werror=frame-larger-than=]
Reported-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 66d9cb5d805a ("drm/i915: Mock the GEM device for self-testing")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20170419094143.16922-2-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
(cherry picked from commit 2310b3c952c5dc56c2e08f71b907b8e23ab3270d)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Previously with commit a9c1f90c8e17
("drm/i915: Don't mask EI UP interrupt on IVB|SNB") certain,
seemingly unrelated bit (GEN6_PM_RP_UP_EI_EXPIRED) was needed
to be unmasked for IVB and SNB in order to prevent system hang
with chained batchbuffers.
Our CI was seeing incomplete results with tests that used
chained batches and it was found out that HSW needs to have this
same bit unmasked to reliably survive chained batches.
Always unmask GEN6_PM_RP_UP_EI_EXPIRED on Haswell to
prevent system hang with batch chaining.
Testcase: igt/gem_exec_fence/nb-await-default
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100672
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1492082127-29007-1-git-send-email-mika.kuoppala@intel.com
(cherry picked from commit 3396a273851c14634b98bb27be37508b06df94f4)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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i915_gem_request_alloc() uses error pointers. It never returns NULLs.
Fixes: 0daf0113cff6 ("drm/i915: Mock infrastructure for request emission")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170413195217.GA26108@mwanda
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
(cherry picked from commit be02f7556447a0dee672acb5e462f03377b98ae8)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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Apparently some DP sinks are a little nuts and cause HPD to drop
intermittently during modesets. This happens eg. on an ASUS PB287Q.
In oder to recover from this we can't really use the previous
connector status to determine if the link needs retraining, so let's
just ignore that piece of information and do the retrain
unconditionally. We do of course still check whether the link is
supposed to be running or not.
To actually get read out the EDID and update things properly we
also need to nuke the goto out added by commit 7d23e3c37bb3
("drm/i915: Cleaning up intel_dp_hpd_pulse"). I'm actually not sure
why that was there. Perhaps to avoid an EDID read if the connector
status didn't appear to change, but that sort of thing is quite racy
and would have failed anyway if we failed to keep up with the
hotplugs (if we missed the HPD down in between two HPD ups). And
now that we take this codepath unconditionally we definitely need
to drop the goto as otherwise we would never do the EDID read.
v2: Drop the goto that made us skip EDID reads entirely. Doh!
v3: Rebase due to locking changes
s/apparely/apparently/ in the comment (Chris)
Cc: stable@vger.kernel.org
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Reported-by: Palmer Dabbelt <palmer@dabbelt.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99766
References: https://lists.freedesktop.org/archives/intel-gfx/2017-February/119779.html
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170412193017.21029-1-ville.syrjala@linux.intel.com
(cherry picked from commit 1a36147bb93921651f7fbd7a6e522da6c349081b)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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[31908.547136] BUG: KASAN: use-after-free in intel_lpe_audio_teardown+0x78/0xb0 [i915] at addr ffff8801f7788358
[31908.547297] Read of size 8 by task drv_selftest/3781
[31908.547405] CPU: 0 PID: 3781 Comm: drv_selftest Tainted: G BU W 4.10.0+ #451
[31908.547553] Hardware name: / , BIOS PYBSWCEL.86A.0027.2015.0507.1758 05/07/2015
[31908.547682] Call Trace:
[31908.547772] dump_stack+0x68/0x9f
[31908.547857] kasan_object_err+0x1c/0x70
[31908.547947] kasan_report_error+0x1f1/0x4f0
[31908.548038] ? kfree+0xaa/0x170
[31908.548121] kasan_report+0x34/0x40
[31908.548211] ? klist_children_get+0x20/0x30
[31908.548472] ? intel_lpe_audio_teardown+0x78/0xb0 [i915]
[31908.548567] __asan_load8+0x5e/0x70
[31908.548824] intel_lpe_audio_teardown+0x78/0xb0 [i915]
[31908.549080] intel_audio_deinit+0x28/0x80 [i915]
[31908.549315] i915_driver_unload+0xe4/0x360 [i915]
[31908.549551] ? i915_driver_load+0x1d70/0x1d70 [i915]
[31908.549651] ? trace_hardirqs_on+0xd/0x10
[31908.549885] i915_pci_remove+0x23/0x30 [i915]
[31908.549978] pci_device_remove+0x5c/0x100
[31908.550069] device_release_driver_internal+0x1db/0x2e0
[31908.550165] driver_detach+0x68/0xc0
[31908.550256] bus_remove_driver+0x8b/0x150
[31908.550346] driver_unregister+0x3e/0x60
[31908.550439] pci_unregister_driver+0x1d/0x110
[31908.550531] ? find_module_all+0x7a/0xa0
[31908.550791] i915_exit+0x1a/0x87 [i915]
[31908.550881] SyS_delete_module+0x264/0x2c0
[31908.550971] ? free_module+0x430/0x430
[31908.551064] ? trace_hardirqs_off_caller+0x16/0x110
[31908.551159] ? trace_hardirqs_on_caller+0x16/0x280
[31908.551256] ? trace_hardirqs_on_thunk+0x1a/0x1c
[31908.551350] entry_SYSCALL_64_fastpath+0x1c/0xb1
[31908.551440] RIP: 0033:0x7f1d67312ec7
[31908.551520] RSP: 002b:00007ffebe34e888 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[31908.551650] RAX: ffffffffffffffda RBX: ffffffff811123f6 RCX: 00007f1d67312ec7
[31908.551743] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000560d0af476b8
[31908.551837] RBP: ffff880233d87f98 R08: 0000000000000000 R09: 00007ffebe34e8b8
[31908.551930] R10: 00007f1d68adf8c0 R11: 0000000000000206 R12: 0000000000000000
[31908.552023] R13: 0000560d0af46440 R14: 0000000000000034 R15: 00007ffebe34d860
[31908.552121] ? trace_hardirqs_off_caller+0x16/0x110
[31908.552217] Object at ffff8801f7788000, in cache kmalloc-2048 size: 2048
[31908.552306] Allocated:
[31908.552377] PID = 3781
[31908.552456] save_stack_trace+0x16/0x20
[31908.552539] kasan_kmalloc+0xee/0x190
[31908.552627] __kmalloc+0xdb/0x1b0
[31908.552713] platform_device_alloc+0x27/0x90
[31908.552804] platform_device_register_full+0x36/0x220
[31908.553066] intel_lpe_audio_init+0x41e/0x570 [i915]
[31908.553320] intel_audio_init+0xd/0x40 [i915]
[31908.553552] i915_driver_load+0x13f5/0x1d70 [i915]
[31908.553788] i915_pci_probe+0x65/0xe0 [i915]
[31908.553881] pci_device_probe+0xda/0x140
[31908.553969] driver_probe_device+0x400/0x660
[31908.554058] __driver_attach+0x11c/0x120
[31908.554147] bus_for_each_dev+0xe6/0x150
[31908.554237] driver_attach+0x26/0x30
[31908.554325] bus_add_driver+0x26b/0x3b0
[31908.554412] driver_register+0xce/0x190
[31908.554502] __pci_register_driver+0xaf/0xc0
[31908.554589] 0xffffffffa0550063
[31908.554675] do_one_initcall+0x8b/0x1e0
[31908.554764] do_init_module+0x102/0x325
[31908.554852] load_module+0x3aad/0x45e0
[31908.554944] SyS_finit_module+0x169/0x1a0
[31908.555033] entry_SYSCALL_64_fastpath+0x1c/0xb1
[31908.555119] Freed:
[31908.555188] PID = 3781
[31908.555266] save_stack_trace+0x16/0x20
[31908.555349] kasan_slab_free+0xb0/0x180
[31908.555436] kfree+0xaa/0x170
[31908.555520] platform_device_release+0x76/0x80
[31908.555610] device_release+0x45/0xe0
[31908.555698] kobject_put+0x11f/0x260
[31908.555785] put_device+0x12/0x20
[31908.555871] platform_device_unregister+0x1b/0x20
[31908.556135] intel_lpe_audio_teardown+0x5c/0xb0 [i915]
[31908.556390] intel_audio_deinit+0x28/0x80 [i915]
[31908.556622] i915_driver_unload+0xe4/0x360 [i915]
[31908.556858] i915_pci_remove+0x23/0x30 [i915]
[31908.556948] pci_device_remove+0x5c/0x100
[31908.557037] device_release_driver_internal+0x1db/0x2e0
[31908.557129] driver_detach+0x68/0xc0
[31908.557217] bus_remove_driver+0x8b/0x150
[31908.557304] driver_unregister+0x3e/0x60
[31908.557394] pci_unregister_driver+0x1d/0x110
[31908.557653] i915_exit+0x1a/0x87 [i915]
[31908.557741] SyS_delete_module+0x264/0x2c0
[31908.557834] entry_SYSCALL_64_fastpath+0x1c/0xb1
[31908.557919] Memory state around the buggy address:
[31908.558005] ffff8801f7788200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[31908.558127] ffff8801f7788280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[31908.558255] >ffff8801f7788300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[31908.558374] ^
[31908.558467] ffff8801f7788380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[31908.558595] ffff8801f7788400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
v2: Just leak the memory (8 bytes) as freeing it ourselves is not safe,
and we need to coordinate a proper fix in platform_device itself.
Fixes: eef57324d926 ("drm/i915: setup bridge for HDMI LPE audio driver")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99952
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Jerome Anand <jerome.anand@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20170412080251.30648-1-chris@chris-wilson.co.uk
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
(cherry picked from commit 48ae80741da4b8a26b6df0f765713912bc7cc480)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
|
|
Many sightings report the greater prevalence of allocation failures.
This is all due to the incorrect use of mapping_gfp_constraint(), so
remove it in favour of just querying the mapping_gfp_mask() which are
the exact gfp_t we wanted in the first place.
We still do expect a higher chance of reporting ENOMEM, as that is the
intention of using __GFP_NORETRY -- to fail rather than oom after having
reclaimed from our bo caches, and having done a direct|kswapd reclaim
pass.
Reported-by: Jason Ekstrand <jason.ekstrand@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=100594
Fixes: 24f8e00a8a2e ("drm/i915: Prefer to report ENOMEM rather than incur the oom for gfx allocations")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170405221514.23251-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
(cherry picked from commit b268d9fe0f10544f5f7a1b7015e2b97075e6215d)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
|
|
We're clearing the legacy_cursor_update flag before calling
drm_atomic_helper_setup_commit() which means the helper will
wait for the flip to complete before cleaning up the framebuffers.
That's not what we want for the legacy cursor, so let's clear
the flag after setting up the commit.
Also toss in a FIXME about solving these problems in a nicer
way using the fabled vblank workers.
v2: Also unsync with legacy page flips
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Uwe Kleine-König <uwe@kleine-koenig.org>
Cc: Rafael Ristovski <rafael.ristovski@gmail.com>
Fixes: a5509abda48e ("drm/i915: Fix legacy cursor vs. watermarks for ILK-BDW")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170329142123.5923-1-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
(cherry picked from commit 895203044067af64400cedbc055898bcec98d102)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
|
|
If the engine is continually completing nops, we can saturate the
signaler and keep it working indefinitely. This angers the NMI watchdog!
A good example is to disable semaphores on snb and run igt/gem_exec_nop -
the parallel, multi-engine workloads are more than sufficient to hog the
CPU, preventing the system from even processing ICMP echo replies.
v2: Tvrtko dug into cond_resched() on x86 and found that it only
depended upon preempt_count and not tif_need_resched() - which means
that we would always call schedule() at that point.
Fixes: c81d46138da6 ("drm/i915: Convert trace-irq to the breadcrumb waiter")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170404120531.10737-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
(cherry picked from commit a7980a640cbd339aa80f406d1786a275a2c320bc)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
|
|
If the signal to park arrives before we sleep, then we need to check
kthread_should_park() before sleeping to avoid missing the signal.
Otherwise, if the signal arrives whilst we are processing completed
requests, we will reset the current->state back to TASK_INTERRUPTIBLE
and so miss the wakeup.
Fixes: fe3288b5da2c ("drm/i915: Park the breadcrumbs signaler across a GPU reset")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170403105124.8969-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
(cherry picked from commit b1becb88268beb72df6495e35d3d76c138d215bb)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
|
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Provide a kma instruction definition for use by callers of __cpacf_query.
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
|
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The new KMA instruction requires unique parameters. Update __cpacf_query to
generate a compatible assembler instruction.
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Acked-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
|
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This patch introduces a new device driver s390-trng for the
s390 platform which exploits the new PRNO TRNG cpacf
subfunction. The true-random-number-generator is accessible
from userspace, by default visible as /dev/trng. The driver
also registers at the kernel build-in hwrng API to feed the
hwrng with fresh entropy data. This generic device driver
for hardware random data is visible from userspace as
/dev/hwrng.
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
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This patch introduces s390 specific arch random functionality.
There exists a generic kernel API for arch specific random
number implementation (see include/linux/random.h). Here
comes the header file and a very small static code part
implementing the arch_random_* API based on the TRNG
subfunction coming with the reworked PRNG instruction.
The arch random implementation hooks into the kernel
initialization and checks for availability of the TRNG
function. In accordance to the arch random API all functions
return false if the TRNG is not available. Otherwise the new
high quality entropy source provides fresh random on each
invocation.
The s390 arch random feature build is controlled via
CONFIG_ARCH_RANDOM. This config option located in
arch/s390/Kconfig is enabled by default and appears
as entry "s390 architectural random number generation API"
in the submenu "Processor type and features" for s390 builds.
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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There is a new TRNG extension in the subcodes for the cpacf
PRNO function. This patch introduces new defines and a new
cpacf_trng inline function to provide these new features for
other kernel code parts.
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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The PPNO (Perform Pseudorandom Number Operation) instruction
has been renamed to PRNO (Perform Random Number Operation).
To avoid confusion and conflicts with future extensions with
this instruction (like e.g. provide a true random number
generator) this patch renames all occurences in cpacf.h and
adjusts the only exploiter code which is the prng device
driver and one line in the s390 kvm feature check.
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
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The kernel page table splitting code will split page tables even for
features the CPU does not support. E.g. a CPU may not support the NX
feature.
In order to avoid this, remove those bits from the flags parameter
that correlate with unsupported CPU features within __set_memory(). In
addition add an early exit if the flags parameter does not have any
bits set afterwards.
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/iwlwifi/iwlwifi-next
One more pull-request intended for 4.12. These are the changes:
* The firmware for 7265D and 3168 NICs is frozen at version 29;
* Sari continues working heavily on support for A000 series;
* A bunch of fixes;
* Some cleanups here and there;
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Lenovo P520/420 build with two codecs.
ALC233 for front panel.
ALC662 for rear panel.
This patch will rename capture name for slove conflicts.
And create a card longname for UCM profile.
Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
|
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into drm-intel-next-fixes
gvt-next-fixes-2017-04-20
- some code optimization from Changbin
- debug message cleanup after QoS merge
- misc fixes for display mmio init, reset vgpu warning, etc.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
|
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The driver was making changes to the skb_header without
ensuring it was writable (i.e. uncloned).
This patch also removes some boiler plate header size
checking/adjustment code as that is also handled by the
skb_cow_header function used to make header writable.
Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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The incoming skb header may be resized if header space is
insufficient, which might change the data adddress in the skb.
Ensure that a cached pointer to that data is correctly set by
moving assignment to after any possible changes.
Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Function create_singlethread_workqueue() will return a NULL pointer if
there is no enough memory, and its return value should be validated
before using. However, in function rndis_wlan_bind(), its return value
is not checked. This may cause NULL dereference bugs. This patch fixes
it.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
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Function alloc_workqueue() will return a NULL pointer if there is no
enough memory, and its return value should be validated before using.
However, in function if_spi_probe(), its return value is not checked.
This may result in a NULL dereference bug. This patch fixes the bug.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
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Function alloc_skb() will return a NULL pointer if there is no enough
memory. However, in function mt7601u_mcu_msg_alloc(), its return value
is not validated before it is used. This patch fixes it.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Allocate buffer on HEAP instead of STACK for a local variable
that is to be sent using usb_control_msg().
Signed-off-by: Maksim Salau <maksim.salau@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
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trivial fix to spelling mistake in dbg_dbg message
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
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Current channel switch implementation sets 8812ae RFE reg value assuming
that device always has type 2.
Extend possible RFE types set and write corresponding reg values.
Source for new code is
http://dlcdnet.asus.com/pub/ASUS/wireless/PCE-AC51/DR_PCE_AC51_20232801152016.zip
Signed-off-by: Maxim Samoylov <max7255@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Like other switches, the Aten CS-1758 KVM switch needs a quirk to avoid
spewing errors:
[12599018.071059] usb 5-2: input irq status -75 received
[12599018.079053] usb 5-2: input irq status -75 received
Signed-off-by: Vasilis Liaskovitis <vliaskovitis@suse.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
|
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Now xfrm garbage collection can be triggered by 'ip xfrm policy del'.
These is no reason not to do it after flushing policies, especially
considering that 'garbage collection deferred' is only triggered
when it reaches gc_thresh.
It's no good that the policy is gone but the xdst still hold there.
The worse thing is that xdst->route/orig_dst is also hold and can
not be released even if the orig_dst is already expired.
This patch is to do the garbage collection if there is any policy
removed in xfrm_policy_flush.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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flush_tlb_page() passes a bogus range to flush_tlb_others() and
expects the latter to fix it up. native_flush_tlb_others() has the
fixup but Xen's version doesn't. Move the fixup to
flush_tlb_others().
AFAICS the only real effect is that, without this fix, Xen would
flush everything instead of just the one page on remote vCPUs in
when flush_tlb_page() was called.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nadav Amit <namit@vmware.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: e7b52ffd45a6 ("x86/flush_tlb: try flush_tlb_single one by one in flush_tlb_range")
Link: http://lkml.kernel.org/r/10ed0e4dfea64daef10b87fb85df1746999b4dba.1492844372.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
|
|
I'm about to rewrite the function almost completely, but first I
want to get a functional change out of the way. Currently, if
flush_tlb_mm_range() does not flush the local TLB at all, it will
never do individual page flushes on remote CPUs. This seems to be
an accident, and preserving it will be awkward. Let's change it
first so that any regressions in the rewrite will be easier to
bisect and so that the rewrite can attempt to change no visible
behavior at all.
The fix is simple: we can simply avoid short-circuiting the
calculation of base_pages_to_flush.
As a side effect, this also eliminates a potential corner case: if
tlb_single_page_flush_ceiling == TLB_FLUSH_ALL, flush_tlb_mm_range()
could have ended up flushing the entire address space one page at a
time.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Dave Hansen <dave.hansen@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nadav Amit <namit@vmware.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/4b29b771d9975aad7154c314534fec235618175a.1492844372.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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I was trying to figure out what how flush_tlb_current_task() would
possibly work correctly if current->mm != current->active_mm, but I
realized I could spare myself the effort: it has no callers except
the unused flush_tlb() macro.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nadav Amit <namit@vmware.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/e52d64c11690f85e9f1d69d7b48cc2269cd2e94b.1492844372.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
|
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mark_screen_rdonly() is the last remaining caller of flush_tlb().
flush_tlb_mm_range() is potentially faster and isn't obsolete.
Compile-tested only because I don't know whether software that uses
this mechanism even exists.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nadav Amit <namit@vmware.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/791a644076fc3577ba7f7b7cafd643cc089baa7d.1492844372.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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nowadays the NAT extension only stores the interface index
(used to purge connections that got masqueraded when interface goes down)
and pptp nat information.
Previous patches moved nf_ct_nat_ext_add to those places that need it.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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make sure nat extension gets added if the master conntrack is subject to
NAT. This will be required once the nat core stops adding it by default.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Currently the nat extension is always attached as soon as nat module is
loaded. However, most NAT uses do not need the nat extension anymore.
Prepare to remove the add-nat-by-default by making those places that need
it attach it if its not present yet.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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