Re: [PATCH (set 1) 00/20] Rid W=1 warnings from GPU

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On Thu, 24 Aug 2023, Jani Nikula wrote:

> On Thu, 24 Aug 2023, Lee Jones <lee@xxxxxxxxxx> wrote:
> > This set is part of a larger effort attempting to clean-up W=1
> > kernel builds, which are currently overwhelmingly riddled with
> > niggly little warnings.
> 
> The next question is, how do we keep it W=1 clean going forward?

My plan was to fix them all, then move each warning to W=0.

Arnd recently submitted a set doing just that for a bunch of them.

https://lore.kernel.org/all/20230811140327.3754597-1-arnd@xxxxxxxxxx/

I like to think a bunch of this is built on top of my previous efforts.

GPU is a particularly tricky though - the warnings seem to come in faster
than I can squash them.  Maybe the maintainers can find a way to test
new patches on merge?

> Most people don't use W=1 because it's too noisy, so it's a bit of a
> catch-22.
> 
> In i915, we enable a lot of W=1 warnings using subdir-ccflags-y in our
> Makefile. For CI/developer use we also enable kernel-doc warnings by
> default.
> 
> Should we start enabling some of those warning flags in drm/Makefile to
> to keep the entire subsystem warning free?

That would we awesome!  We'd just need buy-in.

-- 
Lee Jones [李琼斯]



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