$ grep -r 'call if_changed,' -B shows a few more FWIW: drivers/scsi/Makefile drivers/gpu/drm/radeon/Makefile arch/c6x/boot/Makefile arch/arm64/kernel/vdso/Makefile arch/x86/entry/vdso/Makefile arch/x86/entry/syscalls/Makefile arch/powerpc/platforms/cell/spufs/Makefile arch/powerpc/kernel/syscalls/Makefile arch/alpha/kernel/syscalls/Makefile arch/sparc/boot/Makefile arch/sparc/kernel/syscalls/Makefile arch/mips/kernel/syscalls/Makefile arch/h8300/boot/Makefile arch/nios2/boot/Makefile arch/ia64/kernel/syscalls/Makefile arch/microblaze/boot/dts/Makefile arch/microblaze/kernel/syscalls/Makefile arch/csky/boot/Makefile arch/xtensa/kernel/syscalls/Makefile arch/sh/boot/Makefile arch/sh/kernel/syscalls/Makefile arch/parisc/boot/compressed/Makefile arch/parisc/kernel/syscalls/Makefile arch/m68k/kernel/syscalls/Makefile On Wed, Apr 3, 2019 at 3:32 PM Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> wrote: > > $(call if_changed,...) must have FORCE as a prerequisite. According to Documentation/kbuild/makefiles.txt#L1064: ``` Note: It is a typical mistake to forget the FORCE prerequisite. ``` Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx> > > Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> > --- > > arch/sparc/vdso/Makefile | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile > index 74e97f7..83c4b46 100644 > --- a/arch/sparc/vdso/Makefile > +++ b/arch/sparc/vdso/Makefile > @@ -68,7 +68,7 @@ CFLAGS_REMOVE_vdso-note.o = -pg > CFLAGS_REMOVE_vclock_gettime.o = -pg > > $(obj)/%.so: OBJCOPYFLAGS := -S > -$(obj)/%.so: $(obj)/%.so.dbg > +$(obj)/%.so: $(obj)/%.so.dbg FORCE > $(call if_changed,objcopy) > > CPPFLAGS_vdso32.lds = $(CPPFLAGS_vdso.lds) > -- > 2.7.4 > -- Thanks, ~Nick Desaulniers
