4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Arnd Bergmann <a...@arndb.de> 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-aryabi...@virtuozzo.com Signed-off-by: Arnd Bergmann <a...@arndb.de> Signed-off-by: Andrey Ryabinin <aryabi...@virtuozzo.com> Acked-by: Olof Johansson <o...@lixom.net> Cc: <sta...@vger.kernel.org> Signed-off-by: Andrew Morton <a...@linux-foundation.org> Signed-off-by: Linus Torvalds <torva...@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- lib/ubsan.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/lib/ubsan.c +++ b/lib/ubsan.c @@ -451,8 +451,7 @@ void __ubsan_handle_shift_out_of_bounds( 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;
