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Message-Id: <20230913124153.32077-1-ilpo.jarvinen@linux.intel.com>
Date: Wed, 13 Sep 2023 15:41:53 +0300
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Fenghua Yu <fenghua.yu@...el.com>,
Reinette Chatre <reinette.chatre@...el.com>,
Shuah Khan <shuah@...nel.org>, linux-kernel@...r.kernel.org,
linux-kselftest@...r.kernel.org
Cc: Maciej Wieczór-Retman
<maciej.wieczor-retman@...el.com>,
Shaopeng Tan <tan.shaopeng@...fujitsu.com>,
Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH 1/1] selftests/resctrl: Move _GNU_SOURCE define into Makefile
Currently, _GNU_SOURCE is defined in resctrl.h. Defining _GNU_SOURCE
has a large impact on what gets defined when including headers either
before or after it. This can result in compile failures if .c file
decides to include a standard header file before resctrl.h.
It is safer to define _GNU_SOURCE in Makefile so it is always defined
regardless of in which order includes are done.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
tools/testing/selftests/resctrl/Makefile | 2 +-
tools/testing/selftests/resctrl/resctrl.h | 1 -
2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/tools/testing/selftests/resctrl/Makefile b/tools/testing/selftests/resctrl/Makefile
index 5073dbc96125..2deac2031de9 100644
--- a/tools/testing/selftests/resctrl/Makefile
+++ b/tools/testing/selftests/resctrl/Makefile
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
-CFLAGS = -g -Wall -O2 -D_FORTIFY_SOURCE=2
+CFLAGS = -g -Wall -O2 -D_FORTIFY_SOURCE=2 -D_GNU_SOURCE
CFLAGS += $(KHDR_INCLUDES)
TEST_GEN_PROGS := resctrl_tests
diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h
index 838d1a438f33..eff178befe4a 100644
--- a/tools/testing/selftests/resctrl/resctrl.h
+++ b/tools/testing/selftests/resctrl/resctrl.h
@@ -1,5 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
-#define _GNU_SOURCE
#ifndef RESCTRL_H
#define RESCTRL_H
#include <stdio.h>
--
2.30.2
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