From 43fee2b238959a7b46e2e8c0cd3305c7c044ded8 Mon Sep 17 00:00:00 2001
From: Masahiro Yamada
Date: Wed, 25 Jul 2018 14:16:11 +0900
Subject: kbuild: do not redirect the first prerequisite for filechk

Currently, filechk unconditionally opens the first prerequisite and
redirects it as the stdin of a filechk_* rule.  Hence, every target
using $(call filechk,...) must list something as the first prerequisite
even if it is unneeded.

'< $<' is actually unneeded in most cases.  Each rule can explicitly
adds it if necessary.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 433f87015c1d..bc3a65be9035 100644
--- a/Makefile
+++ b/Makefile
@@ -1117,7 +1117,7 @@ define filechk_version.h
 	echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)
 endef
 
-$(version_h): $(srctree)/Makefile FORCE
+$(version_h): FORCE
 	$(call filechk,version.h)
 	$(Q)rm -f $(old_version_h)
 
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