Re: [PATCH] usb: gadget: f_fs: Use stream_open() for endpoint files

[Greg Kroah-Hartman]

On Thu, Nov 11, 2021 at 04:41:55PM +0530, Pavankumar Kondeti wrote:
> Function fs endpoint files does not have the notion of file position.
> So switch to stream like functionality. This allows concurrent threads
> to be blocked in the ffs read/write operations which use ffs_mutex_lock().
> The ffs mutex lock deploys interruptible wait. Otherwise, threads are
> blocking for the mutex lock in __fdget_pos(). For whatever reason, ff the
> host does not send/receive data for longer time, hung task warnings
> are observed.
> 
> Change-Id: I602fa56fb5ed4c8c46e19df68c3335c4b12cae81

Always run scripts/checkpatch.pl on your patches so you do not get
grumpy maintainers asking you to run scripts/checkpatch.pl on them...

thanks,

greg k-h