linux-kernel - [PATCH v2] selftests/clone3: Fix build error

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Message-Id: <1606447017-10640-1-git-send-email-suxingxing@loongson.cn>
Date:   Fri, 27 Nov 2020 11:16:57 +0800
From:   Xingxing Su <suxingxing@...ngson.cn>
To:     Christian Brauner <christian@...uner.io>,
        Shuah Khan <shuah@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org
Subject: [PATCH v2] selftests/clone3: Fix build error

When compiling the selftests with the -std=gnu99 option the build can
fail with.

Following build error:

  test_core.c: In function ‘test_cgcore_destroy’:
  test_core.c:87:2: error: ‘for’ loop initial declarations are only
  allowed in C99 mode
    for (int i = 0; i < 10; i++) {
    ^
  test_core.c:87:2: note: use option -std=c99 or -std=gnu99 to compile

Add -std=gnu99 to the clone3 selftest Makefile to fix this.

Signed-off-by: Xingxing Su <suxingxing@...ngson.cn>
Acked-by: Christian Brauner <christian.brauner@...ntu.com>
---
 tools/testing/selftests/clone3/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/clone3/Makefile b/tools/testing/selftests/clone3/Makefile
index ef7564c..88354a8 100644
--- a/tools/testing/selftests/clone3/Makefile
+++ b/tools/testing/selftests/clone3/Makefile
@@ -1,5 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
-CFLAGS += -g -I../../../../usr/include/
+CFLAGS += -g -std=gnu99 -I../../../../usr/include/ 
 LDLIBS += -lcap
 
 TEST_GEN_PROGS := clone3 clone3_clear_sighand clone3_set_tid \
-- 
1.8.3.1