linux-kernel - [PATCH] try to use automatic variable in kexec purgatory makefile

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Date:	Fri, 29 Aug 2014 11:05:39 +0800
From:	Baoquan He <bhe@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	vgoyal@...hat.com, hpa@...or.com, tglx@...utronix.de,
	mingo@...hat.com, akpm@...ux-foundation.org, sfr@...b.auug.org.au,
	Baoquan He <bhe@...hat.com>
Subject: [PATCH] try to use automatic variable in kexec purgatory makefile

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

Signed-off-by: Baoquan He <bhe@...hat.com>
---
 arch/x86/purgatory/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index 7fde9ee..f44d1c5 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -17,8 +17,9 @@ $(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)
-- 
1.8.5.3

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