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From:   Miguel Ojeda <ojeda@kernel.org>
To:     Andrey Konovalov <andreyknvl@gmail.com>,
        Marco Elver <elver@google.com>,
        Kees Cook <keescook@chromium.org>,
        Arnd Bergmann <arnd@arndb.de>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Kumar Kartikeya Dwivedi <memxor@gmail.com>,
        Nick Desaulniers <ndesaulniers@google.com>,
        Nathan Chancellor <nathan@kernel.org>,
        Uros Bizjak <ubizjak@gmail.com>,
        Dan Li <ashimida@linux.alibaba.com>,
        Alexander Potapenko <glider@google.com>,
        Miguel Ojeda <ojeda@kernel.org>, linux-kernel@vger.kernel.org
Subject: [PATCH 4/5] compiler-gcc: remove attribute support check for `__no_sanitize_undefined__`
Date:   Fri, 21 Oct 2022 13:59:55 +0200
Message-Id: <20221021115956.9947-4-ojeda@kernel.org>
In-Reply-To: <20221021115956.9947-1-ojeda@kernel.org>
References: <20221021115956.9947-1-ojeda@kernel.org>
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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@kernel.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