linux-kernel - [PATCH] pidfd: fix selftest compilation by removing linux/wait.h

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Date:   Fri, 11 Oct 2019 18:38:11 +0200
From:   Christian Kellner <ckellner@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     Christian Kellner <christian@...lner.me>,
        Christian Brauner <christian@...uner.io>,
        Shuah Khan <shuah@...nel.org>, linux-kselftest@...r.kernel.org
Subject: [PATCH] pidfd: fix selftest compilation by removing linux/wait.h

From: Christian Kellner <christian@...lner.me>

The pidfd_{open,poll}_test.c files both include `linux/wait.h` and
later `sys/wait.h`. The former has `#define P_ALL 0`, but in the
latter P_ALL is part of idtype_t enum, where it gets substituted
due to the aforementioned define to be `0`, which then results in
`typedef enum {0, ...`, which then results into a compiler error:
"error: expected identifier before numeric constant".
Since we need `sys/wait.h` for waitpid, drop `linux/wait.h`.

Signed-off-by: Christian Kellner <christian@...lner.me>
---
 tools/testing/selftests/pidfd/pidfd_open_test.c | 1 -
 tools/testing/selftests/pidfd/pidfd_poll_test.c | 1 -
 2 files changed, 2 deletions(-)

diff --git a/tools/testing/selftests/pidfd/pidfd_open_test.c b/tools/testing/selftests/pidfd/pidfd_open_test.c
index b9fe75fc3e51..8a59438ccc78 100644
--- a/tools/testing/selftests/pidfd/pidfd_open_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_open_test.c
@@ -6,7 +6,6 @@
 #include <inttypes.h>
 #include <limits.h>
 #include <linux/types.h>
-#include <linux/wait.h>
 #include <sched.h>
 #include <signal.h>
 #include <stdbool.h>
diff --git a/tools/testing/selftests/pidfd/pidfd_poll_test.c b/tools/testing/selftests/pidfd/pidfd_poll_test.c
index 4b115444dfe9..610811275357 100644
--- a/tools/testing/selftests/pidfd/pidfd_poll_test.c
+++ b/tools/testing/selftests/pidfd/pidfd_poll_test.c
@@ -3,7 +3,6 @@
 #define _GNU_SOURCE
 #include <errno.h>
 #include <linux/types.h>
-#include <linux/wait.h>
 #include <poll.h>
 #include <signal.h>
 #include <stdbool.h>
-- 
2.21.0