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    Subject[PATCH v3 44/68] selftests/pidfd: Drop define _GNU_SOURCE
    From
    _GNU_SOURCE is provided by lib.mk, so it should be dropped to prevent
    redefinition warnings.

    Fixes: 809216233555 ("selftests/harness: remove use of LINE_MAX")
    Reviewed-by: John Hubbard <jhubbard@nvidia.com>
    Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
    Signed-off-by: Edward Liaw <edliaw@google.com>
    ---
    tools/testing/selftests/pidfd/pidfd.h | 1 -
    tools/testing/selftests/pidfd/pidfd_fdinfo_test.c | 2 --
    tools/testing/selftests/pidfd/pidfd_getfd_test.c | 2 --
    tools/testing/selftests/pidfd/pidfd_open_test.c | 2 --
    tools/testing/selftests/pidfd/pidfd_poll_test.c | 2 --
    tools/testing/selftests/pidfd/pidfd_setns_test.c | 2 --
    tools/testing/selftests/pidfd/pidfd_test.c | 2 --
    tools/testing/selftests/pidfd/pidfd_wait.c | 2 --
    8 files changed, 15 deletions(-)

    diff --git a/tools/testing/selftests/pidfd/pidfd.h b/tools/testing/selftests/pidfd/pidfd.h
    index 88d6830ee004..e33177b1aa41 100644
    --- a/tools/testing/selftests/pidfd/pidfd.h
    +++ b/tools/testing/selftests/pidfd/pidfd.h
    @@ -3,7 +3,6 @@
    #ifndef __PIDFD_H
    #define __PIDFD_H

    -#define _GNU_SOURCE
    #include <errno.h>
    #include <fcntl.h>
    #include <sched.h>
    diff --git a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
    index f062a986e382..84135d75ece7 100644
    --- a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
    +++ b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
    @@ -1,6 +1,4 @@
    // SPDX-License-Identifier: GPL-2.0
    -
    -#define _GNU_SOURCE
    #include <assert.h>
    #include <errno.h>
    #include <fcntl.h>
    diff --git a/tools/testing/selftests/pidfd/pidfd_getfd_test.c b/tools/testing/selftests/pidfd/pidfd_getfd_test.c
    index cd51d547b751..b6a0e9b3d2f5 100644
    --- a/tools/testing/selftests/pidfd/pidfd_getfd_test.c
    +++ b/tools/testing/selftests/pidfd/pidfd_getfd_test.c
    @@ -1,6 +1,4 @@
    // SPDX-License-Identifier: GPL-2.0
    -
    -#define _GNU_SOURCE
    #include <errno.h>
    #include <fcntl.h>
    #include <limits.h>
    diff --git a/tools/testing/selftests/pidfd/pidfd_open_test.c b/tools/testing/selftests/pidfd/pidfd_open_test.c
    index c62564c264b1..f6735eca1dab 100644
    --- a/tools/testing/selftests/pidfd/pidfd_open_test.c
    +++ b/tools/testing/selftests/pidfd/pidfd_open_test.c
    @@ -1,6 +1,4 @@
    // SPDX-License-Identifier: GPL-2.0
    -
    -#define _GNU_SOURCE
    #include <errno.h>
    #include <fcntl.h>
    #include <inttypes.h>
    diff --git a/tools/testing/selftests/pidfd/pidfd_poll_test.c b/tools/testing/selftests/pidfd/pidfd_poll_test.c
    index 55d74a50358f..83af8489c88e 100644
    --- a/tools/testing/selftests/pidfd/pidfd_poll_test.c
    +++ b/tools/testing/selftests/pidfd/pidfd_poll_test.c
    @@ -1,6 +1,4 @@
    // SPDX-License-Identifier: GPL-2.0
    -
    -#define _GNU_SOURCE
    #include <errno.h>
    #include <linux/types.h>
    #include <poll.h>
    diff --git a/tools/testing/selftests/pidfd/pidfd_setns_test.c b/tools/testing/selftests/pidfd/pidfd_setns_test.c
    index 47746b0c6acd..518051f0c3a1 100644
    --- a/tools/testing/selftests/pidfd/pidfd_setns_test.c
    +++ b/tools/testing/selftests/pidfd/pidfd_setns_test.c
    @@ -1,6 +1,4 @@
    // SPDX-License-Identifier: GPL-2.0
    -
    -#define _GNU_SOURCE
    #include <errno.h>
    #include <fcntl.h>
    #include <limits.h>
    diff --git a/tools/testing/selftests/pidfd/pidfd_test.c b/tools/testing/selftests/pidfd/pidfd_test.c
    index 9faa686f90e4..53cce08a2202 100644
    --- a/tools/testing/selftests/pidfd/pidfd_test.c
    +++ b/tools/testing/selftests/pidfd/pidfd_test.c
    @@ -1,6 +1,4 @@
    /* SPDX-License-Identifier: GPL-2.0 */
    -
    -#define _GNU_SOURCE
    #include <errno.h>
    #include <fcntl.h>
    #include <linux/types.h>
    diff --git a/tools/testing/selftests/pidfd/pidfd_wait.c b/tools/testing/selftests/pidfd/pidfd_wait.c
    index 0dcb8365ddc3..54beba0983f1 100644
    --- a/tools/testing/selftests/pidfd/pidfd_wait.c
    +++ b/tools/testing/selftests/pidfd/pidfd_wait.c
    @@ -1,6 +1,4 @@
    /* SPDX-License-Identifier: GPL-2.0 */
    -
    -#define _GNU_SOURCE
    #include <errno.h>
    #include <linux/sched.h>
    #include <linux/types.h>
    --
    2.45.0.118.g7fe29c98d7-goog

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