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linux/drivers/usb/gadget/function
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Frederic Weisbecker e5644be407 usb: gadget: uvc: Fix unstarted kthread worker 
The behaviour of kthread_create_worker() was recently changed to align
with the one of kthread_create(). The kthread worker is created but not
awaken by default. This is to allow the use of kthread_affine_preferred()
and kthread_bind[_mask]() with kthread workers. In order to keep the
old behaviour and wake the kthread up, kthread_run_worker() must be
used. All the pre-existing users have been converted, except for UVC
that was introduced in the same merge window as the API change.

This results in hangs:

	INFO: task UVCG:82 blocked for more than 491 seconds.
	Tainted: G                T  6.13.0-rc2-00014-gb04e317b5226 #1
	task:UVCG            state:D stack:0     pid:82
	 Call Trace:
	 __schedule
	 schedule
	 schedule_preempt_disabled
	 kthread
	 ? kthread_flush_work
	 ret_from_fork
	 ret_from_fork_asm
	 entry_INT80_32

Fix this with converting UVCG kworker to the new API.

Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202502121025.55bfa801-lkp@intel.com
Fixes: f0bbfbd16b ("usb: gadget: uvc: rework to enqueue in pump worker from encoded queue")
Cc: stable <stable@kernel.org>
Cc: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20250212135514.30539-1-frederic@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2025-02-14 09:26:00 +01:00
..
Makefile usb: gadget: uvc: add trace of enqueued and completed requests 2024-10-17 08:42:23 +02:00
f_acm.c usb: gadget: f_acm: make bInterfaceProtocol configurable 2024-09-03 09:54:16 +02:00
f_ecm.c USB: gadget: Use str_enable_disable-like helpers 2025-01-15 18:28:13 +01:00
f_eem.c usb: gadget: add missing MODULE_DESCRIPTION() macros 2024-06-20 19:18:19 +02:00
f_fs.c usb: gadget: f_fs: Remove WARN_ON in functionfs_bind 2024-12-23 18:54:34 +01:00
f_hid.c usb: gadget: function: move u_f.h to include/linux/usb/func_utils.h 2024-09-03 09:57:08 +02:00
f_loopback.c usb: gadget: function: move u_f.h to include/linux/usb/func_utils.h 2024-09-03 09:57:08 +02:00
f_mass_storage.c drivers/usb/gadget: refactor min with min_t 2024-11-13 15:09:50 +01:00
f_mass_storage.h
…
f_midi.c USB: gadget: f_midi: f_midi_complete to call queue_work 2025-02-14 09:24:20 +01:00
f_midi2.c usb: gadget: midi2: Fix interpretation of is_midi1 bits 2024-12-04 16:26:34 +01:00
f_ncm.c USB: gadget: Use str_enable_disable-like helpers 2025-01-15 18:28:13 +01:00
f_obex.c usb: gadget: add missing MODULE_DESCRIPTION() macros 2024-06-20 19:18:19 +02:00
f_phonet.c usb: gadget: add missing MODULE_DESCRIPTION() macros 2024-06-20 19:18:19 +02:00
f_printer.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
f_rndis.c usb: gadget: add missing MODULE_DESCRIPTION() macros 2024-06-20 19:18:19 +02:00
f_serial.c usb: gadget: add missing MODULE_DESCRIPTION() macros 2024-06-20 19:18:19 +02:00
f_sourcesink.c usb: gadget: function: move u_f.h to include/linux/usb/func_utils.h 2024-09-03 09:57:08 +02:00
f_subset.c usb: gadget: add missing MODULE_DESCRIPTION() macros 2024-06-20 19:18:19 +02:00
f_tcm.c usb: gadget: f_tcm: Refactor goto check_condition 2024-12-24 08:56:08 +01:00
f_uac1.c usb: gadget: f_uac1: Change volume name and remove alt names 2024-08-13 18:11:35 +02:00
f_uac1_legacy.c usb: gadget: add missing MODULE_DESCRIPTION() macros 2024-06-20 19:18:19 +02:00
f_uac2.c usb: gadget: f_uac2: Fix incorrect setting of bNumEndpoints 2024-12-23 18:50:28 +01:00
f_uvc.c usb: gadget: uvc: rework to enqueue in pump worker from encoded queue 2024-10-17 08:42:22 +02:00
f_uvc.h usb: gadget: uvc: prevent use of disabled endpoint 2023-11-23 12:32:44 +00:00
g_zero.h
…
ndis.h
…
rndis.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
rndis.h usb: gadget: rndis: add spinlock for rndis response list 2022-02-24 11:16:57 +01:00
storage_common.c usb: gadget: add missing MODULE_DESCRIPTION() macros 2024-06-20 19:18:19 +02:00
storage_common.h usb: storage: add a macro for the upper limit of max LUN 2024-12-04 16:33:54 +01:00
tcm.h usb: gadget: f_tcm: Stall on invalid CBW 2024-12-24 08:56:07 +01:00
u_audio.c Merge 6.11-rc3 into usb-next 2024-08-12 18:49:00 +02:00
u_audio.h usb: gadget: u_audio: Add suspend call 2022-01-26 14:06:09 +01:00
u_ecm.h
…
u_eem.h
…
u_ether.c Merge 6.10-rc6 into usb-next 2024-07-01 13:59:29 +02:00
u_ether.h usb: gadget: add a inline function gether_bitrate() 2023-08-22 14:48:33 +02:00
u_ether_configfs.h
…
u_fs.h usb: gadget: ffs: remove ENTER() macro 2023-03-29 08:55:58 +02:00
u_gether.h
…
u_hid.h
…
u_midi.h
…
u_midi2.h usb: gadget: midi2: More flexible MIDI 1.0 configuration 2023-07-26 06:38:14 +02:00
u_ncm.h usb: gadget: ncm: Add support to update wMaxSegmentSize via configfs 2024-01-04 16:01:14 +01:00
u_phonet.h usb: gadget: function: Remove unused declarations 2023-08-22 14:45:29 +02:00
u_printer.h
…
u_rndis.h
…
u_serial.c Revert "usb: gadget: u_serial: Disable ep before setting port to null to fix the crash caused by port being null" 2025-01-17 12:41:16 +01:00
u_serial.h usb: gadget: f_acm: make bInterfaceProtocol configurable 2024-09-03 09:54:16 +02:00
u_tcm.h
…
u_uac1.h usb: gadget: f_uac1: Change volume name and remove alt names 2024-08-13 18:11:35 +02:00
u_uac1_legacy.c usb: gadget: Replace runtime->status->state reference to runtime->state 2022-09-27 08:49:52 +02:00
u_uac1_legacy.h
…
u_uac2.h usb: gadget: f_uac2: Expose all string descriptors through configfs. 2024-08-13 10:37:05 +02:00
u_uvc.h usb: gadget: webcam: Make g_webcam loadable again 2023-12-15 18:27:38 +01:00
uac_common.h usb: gadget: u_audio: Support multiple sampling rates 2022-01-26 14:06:08 +01:00
uvc.h usb: gadget: uvc: set nbuffers to minimum STREAMING_MIN_BUFFERS in uvc_queue_setup 2024-10-17 08:42:23 +02:00
uvc_configfs.c usb: gadget: uvc: configfs: Add frame-based frame format support 2024-10-16 10:45:47 +02:00
uvc_configfs.h usb: gadget: uvc: configfs: Add frame-based frame format support 2024-10-16 10:45:47 +02:00
uvc_queue.c usb: gadget: uvc: set nbuffers to minimum STREAMING_MIN_BUFFERS in uvc_queue_setup 2024-10-17 08:42:23 +02:00
uvc_queue.h usb: gadget: uvc: set req_length based on payload by nreqs instead of req_size 2024-10-17 08:42:22 +02:00
uvc_trace.c usb: gadget: uvc: add trace of enqueued and completed requests 2024-10-17 08:42:23 +02:00
uvc_trace.h usb: gadget: uvc: add trace of enqueued and completed requests 2024-10-17 08:42:23 +02:00
uvc_v4l2.c usb: gadget: uvc: dont call usb_composite_setup_continue when not streaming 2024-10-17 08:42:23 +02:00
uvc_v4l2.h
…
uvc_video.c usb: gadget: uvc: Fix unstarted kthread worker 2025-02-14 09:26:00 +01:00
uvc_video.h usb: gadget: uvc: move video disable logic to its own function 2023-11-23 12:32:44 +00:00