Re: [RFC] slab: introduce auto_kfree macro

[Herbert Xu]

Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
>
> The compiler *should* complain. But neither GCC nor clang actually
> appear to warn in this case.

Linus turned that warning off in 2020:

commit 78a5255ffb6a1af189a83e493d916ba1c54d8c75
Author: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Date:   Sat May 9 13:57:10 2020 -0700

    Stop the ad-hoc games with -Wno-maybe-initialized

You need to enable it by hand to see the warning:

make KBUILD_CFLAGS_KERNEL=-Wmaybe-uninitialized CFLAGS_MODULE=-Wmaybe-uninitialized

W=2 enables it too but it also enables lots of other crap so it's
useless.

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
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