Re: [Linux-kernel-mentees][PATCH v2] nl80211: Fix undefined behavior in bit shift

From: Johannes Berg
Date: Fri Jun 28 2019 - 09:57:13 EST


On Wed, 2019-06-26 at 21:34 -0600, Shuah Khan wrote:
> On 6/26/19 9:25 PM, Jiunn Chang wrote:
> > Shifting signed 32-bit value by 31 bits is undefined. Changing most
> > significant bit to unsigned.
> >
> > Changes included in v2:
> > - use subsystem specific subject lines
> > - CC required mailing lists
> >
> > Signed-off-by: Jiunn Chang <c0d1n61at3@xxxxxxxxx>
> > ---
>
> Move version change lines here. They don't belong in the commit log.

FWIW, in many cases people (maintainers) now *do* want them in the
commit log. Here, they're just editorial, so agree, but if real
technical changes were made due to reviews, they can indeed be useful.

johannes