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Date: Fri, 21 Oct 2022 14:19:09 -0700 From: Nathan Chancellor <nathan@...nel.org> To: Miguel Ojeda <ojeda@...nel.org> Cc: Andrey Konovalov <andreyknvl@...il.com>, Marco Elver <elver@...gle.com>, Kees Cook <keescook@...omium.org>, Arnd Bergmann <arnd@...db.de>, Andrew Morton <akpm@...ux-foundation.org>, Kumar Kartikeya Dwivedi <memxor@...il.com>, Nick Desaulniers <ndesaulniers@...gle.com>, Uros Bizjak <ubizjak@...il.com>, Dan Li <ashimida@...ux.alibaba.com>, Alexander Potapenko <glider@...gle.com>, linux-kernel@...r.kernel.org Subject: Re: [PATCH 4/5] compiler-gcc: remove attribute support check for `__no_sanitize_undefined__` On Fri, Oct 21, 2022 at 01:59:55PM +0200, Miguel Ojeda wrote: > The attribute was added in GCC 4.9, while the minimum GCC version > supported by the kernel is GCC 5.1. > > Therefore, remove the check. > > Link: https://godbolt.org/z/GrMeo6fYr > Signed-off-by: Miguel Ojeda <ojeda@...nel.org> Reviewed-by: Nathan Chancellor <nathan@...nel.org> > --- > include/linux/compiler-gcc.h | 4 ---- > 1 file changed, 4 deletions(-) > > diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h > index ba207deb77ca..7f2c2bb73815 100644 > --- a/include/linux/compiler-gcc.h > +++ b/include/linux/compiler-gcc.h > @@ -90,11 +90,7 @@ > #define __no_sanitize_thread > #endif > > -#if __has_attribute(__no_sanitize_undefined__) > #define __no_sanitize_undefined __attribute__((__no_sanitize_undefined__)) > -#else > -#define __no_sanitize_undefined > -#endif > > #if defined(CONFIG_KCOV) && __has_attribute(__no_sanitize_coverage__) > #define __no_sanitize_coverage __attribute__((__no_sanitize_coverage__)) > -- > 2.38.1 > >
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