Hi Masahiro, On Wed, 2021-02-03 at 16:52 +0900, Masahiro Yamada wrote: > With commit 121c5d08d53c ("kbuild: Only add -fno-var-tracking- > assignments > for old GCC versions") applied, DEBUG_CFLAGS is now reset only when > CONFIG_CC_IS_GCC=y. > > Fix it to reset DEBUG_CFLAGS also when using Clang. > > [...] > +DEBUG_CFLAGS := > + > # Workaround for GCC versions < 5.0 > # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61801 > ifdef CONFIG_CC_IS_GCC > -DEBUG_CFLAGS := $(call cc-ifversion, -lt, 0500, $(call cc-option, -fno-var-tracking-assignments)) > +DEBUG_CFLAGS += $(call cc-ifversion, -lt, 0500, $(call cc-option, -fno-var-tracking-assignments)) > endif Yes, this makes sense given that the original code, before commit 121c5d08d53c did always set DEBUG_CFLAGS without checking for CONFIG_CC_IS_GCC. So it behaved like the above code does. Reviewed-by: Mark Wielaard <mark@xxxxxxxxx> Thanks, Mark