compiler-gcc: remove attribute support check for `__no_sanitize_address__`

[ Upstream commit ae37a9a2c2d0960d643d782b426ea1aa9c05727a ]

The attribute was added in GCC 4.8, while the minimum GCC version
supported by the kernel is GCC 5.1.

Therefore, remove the check.

Link: https://godbolt.org/z/84v56vcn8
Link: https://lkml.kernel.org/r/20221021115956.9947-2-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dan Li <ashimida@linux.alibaba.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Cc: Marco Elver <elver@google.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Stable-dep-of: 894b00a3350c ("kasan: Fix Software Tag-Based KASAN with GCC")
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index f8333dab22fa86f3222b492d3b8d21d75e4865aa..bf78da28e84271ce74d2d2a7ec2e295e4157dd94 100644 (file)
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -116,11 +116,7 @@
 #define KASAN_ABI_VERSION 3
 #endif
 
-#if __has_attribute(__no_sanitize_address__)
 #define __no_sanitize_address __attribute__((__no_sanitize_address__))
-#else
-#define __no_sanitize_address
-#endif
 
 #if defined(__SANITIZE_THREAD__) && __has_attribute(__no_sanitize_thread__)
 #define __no_sanitize_thread __attribute__((__no_sanitize_thread__))