x86/purgatory, build: Suppress kexec-purgatory.c is up to date message

Suppress this unnecessary message during kernel re-build
(CONFIG_KEXEC_FILE=y):

make[1]: `arch/x86/purgatory/kexec-purgatory.c' is up to date.

Signed-off-by: WANG Chao <chaowang@redhat.com>
Link: http://lkml.kernel.org/r/1413262019-3759-1-git-send-email-chaowang@redhat.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index 899dd24542568de85e815e4b9f206d66286bca8c..2c41066150ba4f753e72fa37a69afbe329341fea 100644 (file)
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -23,6 +23,7 @@ quiet_cmd_bin2c = BIN2C   $@
 
 $(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE
        $(call if_changed,bin2c)
+       @:
 
 
 obj-$(CONFIG_KEXEC_FILE)       += kexec-purgatory.o