On Fri, Aug 20, 2021 at 02:54:05PM -0700, Randy Dunlap wrote: > On 8/20/21 2:26 AM, Stephen Rothwell wrote: > > Hi all, > > > > Changes since 20210819: > > > > Both linux-next and mmotm have many of these warnings when using > gcc (SUSE Linux) 7.5.0: > > cc1: warning: unrecognized command line option '-Wno-alloc-size-larger-than' Ew. Thanks for letting me know. I thought I'd verified this existed in gcc going back to 4.9, but it looks like I did something wrong in that test. I think this should fix it: diff --git a/Makefile b/Makefile index b0fafc41b686..e33ffa05899e 100644 --- a/Makefile +++ b/Makefile @@ -1097,7 +1097,7 @@ endif ifdef CONFIG_CC_IS_GCC # The allocators already balk at large sizes, so silence the compiler # warnings for bounds checks involving those possible values. -KBUILD_CFLAGS += -Wno-alloc-size-larger-than +KBUILD_CFLAGS += $(call cc-option, -Wno-alloc-size-larger-than) endif # disable invalid "can't wrap" optimizations for signed / pointers -- Kees Cook
