Re: [PATCH] staging: pi433: add descriptions for mutex locks
From: Valentin Vidic
Date: Fri Mar 23 2018 - 07:43:06 EST
On Fri, Mar 23, 2018 at 11:22:39AM +0100, Marcus Wolf wrote:
> could you please decribe in short words, why you think, that hte lock
> isn't obsolete?
>
> I wasn't sure, but close to remove the lock. That's why I putted the
> comment.
Sure, if pi433_tx_thread runs on one CPU it might be possible
to call pi433_write concurrently on another CPU and they would
both modify tx_fifo. But maybe there is some other protection
in place that would prevent this?
--
Valentin