linux-kernel - [PATCH] selftests: futex: Use variable MAKE instead of make

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Date:   Thu, 27 Jan 2022 22:44:46 +0500
From:   Muhammad Usama Anjum <usama.anjum@...labora.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Darren Hart <dvhart@...radead.org>,
        Davidlohr Bueso <dave@...olabs.net>,
        André Almeida <andrealmeid@...labora.com>,
        Shuah Khan <shuah@...nel.org>,
        Bamvor Jian Zhang <bamvor.zhangjian@...aro.org>
Cc:     Muhammad Usama Anjum <usama.anjum@...labora.com>,
        kernel@...labora.com, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org
Subject: [PATCH] selftests: futex: Use variable MAKE instead of make

Recursive make commands should always use the variable MAKE, not the
explicit command name ‘make’. This has benefits and removes the
following warning when multiple jobs are used for the build:

make[2]: warning: jobserver unavailable: using -j1.  Add '+' to parent make rule.

Fixes: a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@...labora.com>
---
 tools/testing/selftests/futex/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/futex/Makefile b/tools/testing/selftests/futex/Makefile
index 12631f0076a10..11e157d7533b8 100644
--- a/tools/testing/selftests/futex/Makefile
+++ b/tools/testing/selftests/futex/Makefile
@@ -11,7 +11,7 @@ all:
 	@for DIR in $(SUBDIRS); do		\
 		BUILD_TARGET=$(OUTPUT)/$$DIR;	\
 		mkdir $$BUILD_TARGET  -p;	\
-		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
 		if [ -e $$DIR/$(TEST_PROGS) ]; then \
 			rsync -a $$DIR/$(TEST_PROGS) $$BUILD_TARGET/; \
 		fi \
@@ -32,6 +32,6 @@ override define CLEAN
 	@for DIR in $(SUBDIRS); do		\
 		BUILD_TARGET=$(OUTPUT)/$$DIR;	\
 		mkdir $$BUILD_TARGET  -p;	\
-		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
 	done
 endef
-- 
2.30.2