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authorMasahiro Yamada <yamada.masahiro@socionext.com>2019-01-17 13:02:44 +0300
committerMasahiro Yamada <yamada.masahiro@socionext.com>2019-01-28 03:11:17 +0300
commitb79c6aa6a1f111eab2fc08b92541c9e88824be72 (patch)
treed078e5aa6b60780e734387dd5a604bc057e5045f /scripts/Makefile.build
parentafa974b771281fd89e8fdcb71152152f17fb8303 (diff)
downloadlinux-b79c6aa6a1f111eab2fc08b92541c9e88824be72.tar.xz
kbuild: remove unnecessary in-subshell execution
The commands surrounded by ( ) are executed in a subshell, but in most cases, we do not need to spawn an extra subshell. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'scripts/Makefile.build')
-rw-r--r--scripts/Makefile.build4
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 9800178fdcd2..f8e2794107ed 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -312,11 +312,11 @@ $(real-obj-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE)
#
# These mirror gensymtypes_c and co above, keep them in synch.
cmd_gensymtypes_S = \
- (echo "\#include <linux/kernel.h>" ; \
+ { echo "\#include <linux/kernel.h>" ; \
echo "\#include <asm/asm-prototypes.h>" ; \
$(CPP) $(a_flags) $< | \
grep "\<___EXPORT_SYMBOL\>" | \
- sed 's/.*___EXPORT_SYMBOL[[:space:]]*\([a-zA-Z0-9_]*\)[[:space:]]*,.*/EXPORT_SYMBOL(\1);/' ) | \
+ sed 's/.*___EXPORT_SYMBOL[[:space:]]*\([a-zA-Z0-9_]*\)[[:space:]]*,.*/EXPORT_SYMBOL(\1);/' ; } | \
$(CPP) -D__GENKSYMS__ $(c_flags) -xc - | \
$(GENKSYMS) $(if $(1), -T $(2)) \
$(patsubst y,-R,$(CONFIG_MODULE_REL_CRCS)) \