Re: [PATCH 9/9] [RFC] extrawarn: enable more W=1 warnings by default

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On Fri, Aug 11, 2023 at 04:03:27PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@xxxxxxxx>
> 
> A number of warning options from the W=1 set are completely clean in current
> kernels, so we should just enable them by default, including a lot of warnings
> that are part of -Wextra, so just turn on -Wextra by default.
> 
> The -Woverride-init, -Wvoid-pointer-to-enum-cast and
> -Wmissing-format-attribute warnings are part of -Wextra but still produce
> some legitimate warnings that need to be fixed, so leave them at the
> W=1 level but turn them off otherwise.
> 
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
...
> -KBUILD_CFLAGS += -Wno-tautological-constant-out-of-range-compare
> -KBUILD_CFLAGS += $(call cc-disable-warning, unaligned-access)
> -KBUILD_CFLAGS += $(call cc-disable-warning, cast-function-type-strict)

I am still running through my builds but I don't think that dropping
these three is acceptable at the moment. I see a good number of all of
these warnings in -next still. I see some patches that I have picked up
to address a couple of the really noisy ones but some others that I
looked at are not fixed. I'll have a list eventually.

Cheers,
Nathan



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