RE: [PATCH v0 linux master] i2c/busses: Avoid i2c interrupt status clear race condition.

Ryan Chen
2020-05-05T01:52:06Z

> > And is there maybe a Fixes: tag for it?
> > [Ryan Chen] Yes it is a fix patch.
>
> I meant this (from submitting-patches.rst):

>It fixes the original implementation of the driver basically. It's just a classic posted-write fix. The write to clear the pending interrupt is asynchronous, so you can get spurrious ones if you return from the handler before it has percolated to the HW.

>I assume it's just more visible on the 2600 because of the cores are significantly faster but the IO bus is still as dumb.

>Ryan: You could always add a Fixed-by: tag that specifies the commit that added the initial driver...
[Ryan Chen] Thanks Ben.