linux-kernel - [PATCH 43/43] tools build feature sched_getcpu: Undef _GNU

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Message-Id: <20190215004539.23571-44-acme@kernel.org>
Date:   Thu, 14 Feb 2019 21:45:39 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
        Clark Williams <williams@...hat.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Alexei Starovoitov <ast@...com>,
        Andrii Nakryiko <andrii.nakryiko@...il.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Jin Yao <yao.jin@...ux.intel.com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>
Subject: [PATCH 43/43] tools build feature sched_getcpu: Undef _GNU_SOURCE at the end

From: Arnaldo Carvalho de Melo <acme@...hat.com>

Since this feature test is included in test-all.c, the feature detection
fast path compile/link phase, it can't leave any defines behind, as it
can affect the tests included after it, so remove it.

Reported-by: Jiri Olsa <jolsa@...nel.org>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Alexei Starovoitov <ast@...com>
Cc: Andrii Nakryiko <andrii.nakryiko@...il.com>
Cc: Daniel Borkmann <daniel@...earbox.net>
Cc: Jakub Kicinski <jakub.kicinski@...ronome.com>
Cc: Jin Yao <yao.jin@...ux.intel.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Song Liu <songliubraving@...com>
Cc: Yonghong Song <yhs@...com>
Link: https://lkml.kernel.org/n/tip-lg3kpd9tzypc797vb1f42u6k@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/build/feature/test-sched_getcpu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/build/feature/test-sched_getcpu.c b/tools/build/feature/test-sched_getcpu.c
index e448deb4124c..48995ac7911e 100644
--- a/tools/build/feature/test-sched_getcpu.c
+++ b/tools/build/feature/test-sched_getcpu.c
@@ -8,3 +8,5 @@ int main(void)
 {
 	return sched_getcpu();
 }
+
+#undef _GNU_SOURCE
-- 
2.19.1