On Tue, 14 May 2024 15:03:26 +0200, Enrico Scholz wrote:
> The composite driver does some bookkeeping about pending requests and
> decides in its cleanup function whether requests must be dequeued.
>
> There are some function drivers (dfu, acm) which queue the requests
> directly which causes e.g.
>
> | :/ dfu /tmp/img(img)c
> | ...
> | g_multi gadget0: high-speed config #1: Multifunction Composite Gadget
> | fsl_free_request: Freeing queued request
> | [<2fd8d8e5>] (unwind_backtrace+0x1/0x78) from [<2fd34b1f>] (fsl_free_request+0x1f/0x34)
> | [<2fd34b1f>] (fsl_free_request+0x1f/0x34) from [<2fd337cf>] (composite_dev_cleanup+0x77/0xc0)
> | [<2fd337cf>] (composite_dev_cleanup+0x77/0xc0) from [<2fd33867>] (__composite_unbind+0x4f/0x94)
> | [<2fd33867>] (__composite_unbind+0x4f/0x94) from [<2fd3432b>] (gadget_unbind_driver+0x37/0x70)
> | [<2fd3432b>] (gadget_unbind_driver+0x37/0x70) from [<2fd1275f>] (device_remove+0xf/0x20)
> | [<2fd1275f>] (device_remove+0xf/0x20) from [<2fd1289b>] (unregister_driver+0x47/0x60)
> | [<2fd1289b>] (unregister_driver+0x47/0x60) from [<2fd34663>] (usb_gadget_unregister_driver+0xf/0x18)
> | [<2fd34663>] (usb_gadget_unregister_driver+0xf/0x18) from [<2fd37c5b>] (usb_multi_unregister+0x13/0x30)
> | [<2fd37c5b>] (usb_multi_unregister+0x13/0x30) from [<2fd59f67>] (do_dfu+0x47/0x68)
> | [<2fd59f67>] (do_dfu+0x47/0x68) from [<2fd04fdf>] (execute_command+0x23/0x4c)
> | [<2fd04fdf>] (execute_command+0x23/0x4c) from [<2fd0a737>] (run_list_real+0x5ef/0x690)
> | [<2fd0a737>] (run_list_real+0x5ef/0x690) from [<2fd0a00b>] (parse_stream_outer+0xc7/0x154)
> | [<2fd0a00b>] (parse_stream_outer+0xc7/0x154) from [<2fd0a927>] (run_shell+0x3f/0x6c)
> | [<2fd0a927>] (run_shell+0x3f/0x6c) from [<2fd01103>] (run_init+0xeb/0x210)
> | [<2fd01103>] (run_init+0xeb/0x210) from [<2fd01253>] (start_barebox+0x2b/0x6c)
> | [<2fd01253>] (start_barebox+0x2b/0x6c) from [<2fd89b37>] (barebox_non_pbl_start+0xc3/0x108)
> | [<2fd89b37>] (barebox_non_pbl_start+0xc3/0x108) from [<2fd00005>] (__bare_init_start+0x1/0xc)
>
> [...]
Applied, thanks!
[1/2] usb:gadget:composite: add public functions for managing setup requests
https://git.pengutronix.de/cgit/barebox/commit/?id=bf91067ef12c (link may not be stable)
[2/2] usb:gadget: use helper function to queue composite requests
https://git.pengutronix.de/cgit/barebox/commit/?id=593248cde35d (link may not be stable)
Best regards,
--
Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
