Thread (15 messages) 15 messages, 6 authors, 2026-05-11

Re: [PATCH RESEND 1/2] powerpc/ps3: Drop redundant result assignment

From: Segher Boessenkool <hidden>
Date: 2026-03-18 12:13:08
Also in: lkml, llvm

On Wed, Mar 18, 2026 at 01:03:03PM +0100, Krzysztof Kozlowski wrote:
On 18/03/2026 12:58, Segher Boessenkool wrote:
quoted
On Wed, Mar 18, 2026 at 12:54:30PM +0100, Krzysztof Kozlowski wrote:
quoted
On 18/03/2026 12:51, Segher Boessenkool wrote:
quoted
On Tue, Mar 17, 2026 at 02:08:24PM +0100, Krzysztof Kozlowski wrote:
quoted
Return value of ps3_start_probe_thread() is not used, so code can be
simplified to fix W=1 clang warnings:

  arch/powerpc/platforms/ps3/device-init.c:953:6: error: variable 'result' set but not used [-Werror,-Wunused-but-set-variable]
And this is exactly why -Werror is harmful.  A boring harmless warning
turned into a build break :-(
-Werror does not matter here. We do not want warnings either, assuming
of course they are correct.

So if this warning is correct, then patch should be applied and WERROR
is irrelevant.
The build is broken.  -Werror is positively harmful.

Yes, you want the warnings fixed, but maybe something else has priority
right now?
What do you mean? This is waiting on the list for long time - note that
it is a resend - so if warning is correct, for how long it should wait
to get to the "priority" box?

And why anything needs even the priority here? Why priority has to be
discussed, especially for some legacy (I think?) code? Why correct
patches cannot be simply applied after some time/review?
It is totally simple: without -Werror, you can build a kernel.  With it,
you cannot.

The ***warning*** is correct, there is something in the code that can be
improved.  That is why such things are warnings: the compiler can
produce useful output, there is no reason to scream bloody murder.

The main reason some people like -Werror is because they are too lazy to
look at the warning messages they get from normal builds.  Such
developers need potty training, this is not a reason to punish all more
reasonable people!


Segher
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