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| author | Arnd Bergmann <arnd@arndb.de> | 2018-11-17 02:08:35 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-21 11:26:03 +0300 |
| commit | e133c33edf3b63193fceb58a5d5249eed63cb572 (patch) | |
| tree | 63719a59363e131cada0ef6fa4b11f375c25aab6 /lib | |
| parent | 8f1756ad8ba4881c9d8c263718c9e220e00e3e01 (diff) | |
| download | linux-e133c33edf3b63193fceb58a5d5249eed63cb572.tar.xz | |
lib/ubsan.c: don't mark __ubsan_handle_builtin_unreachable as noreturn
commit 1c23b4108d716cc848b38532063a8aca4f86add8 upstream.
gcc-8 complains about the prototype for this function:
lib/ubsan.c:432:1: error: ignoring attribute 'noreturn' in declaration of a built-in function '__ubsan_handle_builtin_unreachable' because it conflicts with attribute 'const' [-Werror=attributes]
This is actually a GCC's bug. In GCC internals
__ubsan_handle_builtin_unreachable() declared with both 'noreturn' and
'const' attributes instead of only 'noreturn':
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84210
Workaround this by removing the noreturn attribute.
[aryabinin: add information about GCC bug in changelog]
Link: http://lkml.kernel.org/r/20181107144516.4587-1-aryabinin@virtuozzo.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: Olof Johansson <olof@lixom.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/ubsan.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/lib/ubsan.c b/lib/ubsan.c index 50d1d5c25deb..60e108c5c173 100644 --- a/lib/ubsan.c +++ b/lib/ubsan.c @@ -451,8 +451,7 @@ void __ubsan_handle_shift_out_of_bounds(struct shift_out_of_bounds_data *data, EXPORT_SYMBOL(__ubsan_handle_shift_out_of_bounds); -void __noreturn -__ubsan_handle_builtin_unreachable(struct unreachable_data *data) +void __ubsan_handle_builtin_unreachable(struct unreachable_data *data) { unsigned long flags; |