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authorSerge Vasilugin <vasilugin@yandex.ru>2017-01-20 14:28:26 +0100
committerKalle Valo <kvalo@codeaurora.org>2017-01-28 09:03:46 +0200
commit98e71f44c51d0ade36896dc34115c108912d909d (patch)
treecaffa039f388dc3fb81ea397ad406e4dc1a13612 /drivers/usb/gadget/legacy/cdc2.c
parent5c4412e0728063583ec971323f8256e8005a32b6 (diff)
rt2x00: add support for RT5350 WiSoC
Support for the RT5350 WiSoC was added to OpenWrt after having a lengthy debate about the legality of the original submission, see https://lists.openwrt.org/pipermail/openwrt-devel/2013-January/018224.html MTK/Ralink Acked replied and says we can merge this patch under the GPL. https://dev.openwrt.org/changeset/36177 Signed-off-by: Serge Vasilugin <vasilugin@yandex.ru> Tested-by: Michel Stempin <michel.stempin@wanadoo.fr> Acked-by: John Crispin <blogic@openwrt.org> [daniel@makrotopia.org: added commit message, cleaned up code] Signed-off-by: Daniel Golle <daniel@makrotopia.org> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/usb/gadget/legacy/cdc2.c')
0 files changed, 0 insertions, 0 deletions
tplug during I/O, as hangs in blk_mq_freeze_queue_wait where percpu_ref_kill (blk_mq_freeze_queue_start) raced with percpu_ref_tryget (blk_mq_timeout_work). Sample stack trace: __switch_to+0x2c0/0x450 __schedule+0x2f8/0x970 schedule+0x48/0xc0 blk_mq_freeze_queue_wait+0x94/0x120 blk_mq_queue_reinit_work+0xb8/0x180 blk_mq_queue_reinit_prepare+0x84/0xa0 cpuhp_invoke_callback+0x17c/0x600 cpuhp_up_callbacks+0x58/0x150 _cpu_up+0xf0/0x1c0 do_cpu_up+0x120/0x150 cpu_subsys_online+0x64/0xe0 device_online+0xb4/0x120 online_store+0xb4/0xc0 dev_attr_store+0x68/0xa0 sysfs_kf_write+0x80/0xb0 kernfs_fop_write+0x17c/0x250 __vfs_write+0x6c/0x1e0 vfs_write+0xd0/0x270 SyS_write+0x6c/0x110 system_call+0x38/0xe0 Examination of the queue showed a single reference (no PERCPU_COUNT_BIAS, and __PERCPU_REF_DEAD, __PERCPU_REF_ATOMIC set) and no requests. However, conditions at the time of the race are count of PERCPU_COUNT_BIAS + 0 and __PERCPU_REF_DEAD and __PERCPU_REF_ATOMIC set. The fix is to make the tryget routines use an actual boolean internally instead of the atomic long result truncated to a int. Fixes: e625305b3907 percpu-refcount: make percpu_ref based on longs instead of ints Link: https://bugzilla.kernel.org/show_bug.cgi?id=190751 Signed-off-by: Douglas Miller <dougmill@linux.vnet.ibm.com> Reviewed-by: Jens Axboe <axboe@fb.com> Signed-off-by: Tejun Heo <tj@kernel.org> Fixes: e625305b3907 ("percpu-refcount: make percpu_ref based on longs instead of ints") Cc: stable@vger.kernel.org # v3.18+
Diffstat (limited to 'tools/testing/selftests/ftrace/test.d/trigger/trigger-traceonoff.tc')