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[PATCH v3] Cleanup: membarrier selftest

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  [PATCH v3] Cleanup: membarrier selftest Mathieu Desnoyers <mathieu.desnoyers@efficios.com> - 2015-09-08 23:00 +0200
    Re: [PATCH v3] Cleanup: membarrier selftest Michael Ellerman <mpe@ellerman.id.au> - 2015-09-09 10:40 +0200

#1221081 — [PATCH v3] Cleanup: membarrier selftest

We don't need to specify an explicit rule in the Makefile, the implicit
one will do the same. The "__EXPORTED_HEADERS__" define is not needed,
because we build the test against the installed kernel headers, not the
in-tree kernel headers. Re-use "$(TEST_PROGS)" in the clean target
rather than spelling the executable name twice. Include <unistd.h>
rather than the rather specific <asm-generic/unistd.h>. Include
<syscall.h> rather than <sys/syscall.h>. In both cases, the former
header is located in a standard location and includes the latter.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: Michael Ellerman <mpe@ellerman.id.au>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: linux-api@vger.kernel.org
CC: Pranith Kumar <bobby.prani@gmail.com>
CC: Shuah Khan <shuahkh@osg.samsung.com>
--
Changes since v2:
- Refine Changelog, removing references to comments, taking care
  of comments from Shuah Khan.
Changes since v1:
- Add Changelog.
Changes since RFC:
- Take care of comments from Michael Ellerman.
---
 tools/testing/selftests/membarrier/Makefile          | 7 +++----
 tools/testing/selftests/membarrier/membarrier_test.c | 5 +----
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/membarrier/Makefile b/tools/testing/selftests/membarrier/Makefile
index 877a503..a1a9708 100644
--- a/tools/testing/selftests/membarrier/Makefile
+++ b/tools/testing/selftests/membarrier/Makefile
@@ -1,11 +1,10 @@
 CFLAGS += -g -I../../../../usr/include/
 
-all:
-	$(CC) $(CFLAGS) membarrier_test.c -o membarrier_test
-
 TEST_PROGS := membarrier_test
 
+all: $(TEST_PROGS)
+
 include ../lib.mk
 
 clean:
-	$(RM) membarrier_test
+	$(RM) $(TEST_PROGS)
diff --git a/tools/testing/selftests/membarrier/membarrier_test.c b/tools/testing/selftests/membarrier/membarrier_test.c
index dde3125..535f0fe 100644
--- a/tools/testing/selftests/membarrier/membarrier_test.c
+++ b/tools/testing/selftests/membarrier/membarrier_test.c
@@ -1,9 +1,6 @@
 #define _GNU_SOURCE
-#define __EXPORTED_HEADERS__
-
 #include <linux/membarrier.h>
-#include <asm-generic/unistd.h>
-#include <sys/syscall.h>
+#include <syscall.h>
 #include <stdio.h>
 #include <errno.h>
 #include <string.h>
-- 
1.9.1

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#1221299

On Tue, 2015-09-08 at 16:58 -0400, Mathieu Desnoyers wrote:
> We don't need to specify an explicit rule in the Makefile, the implicit
> one will do the same. The "__EXPORTED_HEADERS__" define is not needed,
> because we build the test against the installed kernel headers, not the
> in-tree kernel headers. Re-use "$(TEST_PROGS)" in the clean target
> rather than spelling the executable name twice. Include <unistd.h>
> rather than the rather specific <asm-generic/unistd.h>. Include
> <syscall.h> rather than <sys/syscall.h>. In both cases, the former
> header is located in a standard location and includes the latter.
> 
> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> CC: Michael Ellerman <mpe@ellerman.id.au>
> CC: Andrew Morton <akpm@linux-foundation.org>
> CC: linux-api@vger.kernel.org
> CC: Pranith Kumar <bobby.prani@gmail.com>
> CC: Shuah Khan <shuahkh@osg.samsung.com>
> --
> Changes since v2:
> - Refine Changelog, removing references to comments, taking care
>   of comments from Shuah Khan.
> Changes since v1:
> - Add Changelog.
> Changes since RFC:
> - Take care of comments from Michael Ellerman.

Looks great, thanks.

Acked-by: Michael Ellerman <mpe@ellerman.id.au>

cheers


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