[PATCH 4.9 109/145] x86/build: Silence the build with "make -s"

From: Greg Kroah-Hartman
Date: Fri Feb 23 2018 - 13:47:17 EST


4.9-stable review patch. If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann <arnd@xxxxxxxx>

commit d460131dd50599e0e9405d5f4ae02c27d529a44a upstream.

Every kernel build on x86 will result in some output:

Setup is 13084 bytes (padded to 13312 bytes).
System is 4833 kB
CRC 6d35fa35
Kernel: arch/x86/boot/bzImage is ready (#2)

This shuts it up, so that 'make -s' is truely silent as long as
everything works. Building without '-s' should produce unchanged
output.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20170719125310.2487451-6-arnd@xxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
arch/x86/boot/Makefile | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -73,12 +73,13 @@ UBSAN_SANITIZE := n
$(obj)/bzImage: asflags-y := $(SVGA_MODE)

quiet_cmd_image = BUILD $@
+silent_redirect_image = >/dev/null
cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
- $(obj)/zoffset.h $@
+ $(obj)/zoffset.h $@ $($(quiet)redirect_image)

$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
$(call if_changed,image)
- @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
+ @$(kecho) 'Kernel: $@ is ready' ' (#'`cat .version`')'

OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE