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authorMasahiro Yamada <masahiroy@kernel.org>2022-02-11 14:14:11 +0900
committerMasahiro Yamada <masahiroy@kernel.org>2022-02-15 12:25:56 +0900
commit5c8166419acf468b5bc3e48f928a040485d3e0c2 (patch)
treeca2951084ba06509599cca6dde48e46cd4368ffb /tools/tracing
parentf67695c9962e5f444549b3437fb8d840ec6222c8 (diff)
downloadlinux-5c8166419acf468b5bc3e48f928a040485d3e0c2.tar.gz
kbuild: replace $(if A,A,B) with $(or A,B)
$(or ...) is available since GNU Make 3.81, and useful to shorten the
code in some places.

Covert as follows:

  $(if A,A,B)  -->  $(or A,B)

This patch also converts:

  $(if A, A, B) --> $(or A, B)

Strictly speaking, the latter is not an equivalent conversion because
GNU Make keeps spaces after commas; if A is not empty, $(if A, A, B)
expands to " A", while $(or A, B) expands to "A".

Anyway, preceding spaces are not significant in the code hunks I touched.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Diffstat (limited to 'tools/tracing')
-rw-r--r--tools/tracing/rtla/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/tracing/rtla/Makefile b/tools/tracing/rtla/Makefile
index 5a1eda617992..11fb417abb42 100644
--- a/tools/tracing/rtla/Makefile
+++ b/tools/tracing/rtla/Makefile
@@ -46,7 +46,7 @@ DATADIR	:=	/usr/share
 DOCDIR	:=	$(DATADIR)/doc
 MANDIR	:=	$(DATADIR)/man
 LICDIR	:=	$(DATADIR)/licenses
-SRCTREE	:=	$(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR))
+SRCTREE	:=	$(or $(BUILD_SRC),$(CURDIR))
 
 # If running from the tarball, man pages are stored in the Documentation
 # dir. If running from the kernel source, man pages are stored in