From: Baoquan He <bhe@redhat.com>
Date: Mon, 13 Oct 2014 22:53:37 +0000 (-0700)
Subject: arch/x86/purgatory/Makefile: try to use automatic variable in kexec purgatory makefile
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=887f4f8666960dcf8c13d516ff3e4311353f3206;p=openwrt%2Fstaging%2Fblogic.git

arch/x86/purgatory/Makefile: try to use automatic variable in kexec purgatory makefile

Make the Makefile of kexec purgatory be consistent with others in linux
src tree, and make it look generic and simple.

Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index 899dd2454256..f52e033557c9 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -18,8 +18,9 @@ $(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE
 
 targets += kexec-purgatory.c
 
+CMD_BIN2C = $(objtree)/scripts/basic/bin2c
 quiet_cmd_bin2c = BIN2C   $@
-      cmd_bin2c = cat $(obj)/purgatory.ro | $(objtree)/scripts/basic/bin2c kexec_purgatory > $(obj)/kexec-purgatory.c
+      cmd_bin2c = $(CMD_BIN2C) kexec_purgatory < $< > $@
 
 $(obj)/kexec-purgatory.c: $(obj)/purgatory.ro FORCE
 	$(call if_changed,bin2c)