Re: New warnings with gcc-11

Jani Nikula
2021-04-28T07:27:19Z

On Tue, 27 Apr 2021, Linus Torvalds <torvalds@linux-foundation.org> wrote:
> I've updated to Fedora 34 on one of my machines, and it causes a lot
> of i915 warnings like
>
> drivers/gpu/drm/i915/intel_pm.c: In function ‘ilk_setup_wm_latency’:
> drivers/gpu/drm/i915/intel_pm.c:3059:9: note: referencing argument 3
> of type ‘const u16 *’ {aka ‘const short unsigned int *’}
> drivers/gpu/drm/i915/intel_pm.c:2994:13: note: in a call to function
> ‘intel_print_wm_latency’
>
> and the reason is that gcc now seems to look at the argument array
> size more, and notices that

Arnd Bergmann reported some of these a while back. I think we have some
of them fixed in our -next already, but not all. Thanks for the
reminder.

BR,
Jani.

--
Jani Nikula, Intel Open Source Graphics Center