[LTP] [PATCH 1/1] Skip wqueue testcases when KEY_NOTIFICATIONS not enabled.

[simplemessager@163.com]

From: Mingyu Li <limy83@chinatelecom.cn>

Skip wqueue testcases when KEY_NOTIFICATIONS not enabled.

wqueue testcases relys on both CONFIG_WATCH_QUEUE
and CONFIG_KEY_NOTIFICATIONS. keyctl will return EOPNOTSUPP
when CONFIG_KEY_NOTIFICATIONS is not enabled and the wqueue
testcases will failed when timeout. So we should skip
testcases when we got EOPNOTSUPP from keyctl.

Reported-by: Meng Yang <yangm50@chinatelecom.cn>
Signed-off-by: Mingyu Li <limy83@chinatelecom.cn>
---
 testcases/kernel/watchqueue/common.h | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/testcases/kernel/watchqueue/common.h b/testcases/kernel/watchqueue/common.h
index 92e8f079c..e9100ab52 100644
--- a/testcases/kernel/watchqueue/common.h
+++ b/testcases/kernel/watchqueue/common.h
@@ -85,8 +85,26 @@ static inline key_serial_t wqueue_add_key(int fd)
 	if (key == -1)
 		tst_brk(TBROK, "add_key error: %s", tst_strerrno(errno));
 
-	keyctl(KEYCTL_WATCH_KEY, key, fd, 0x01);
-	keyctl(KEYCTL_WATCH_KEY, KEY_SPEC_SESSION_KEYRING, fd, 0x02);
+	TEST(keyctl(KEYCTL_WATCH_KEY, key, fd, 0x01));
+	if (TST_RET) {
+		switch (TST_ERR) {
+		case EOPNOTSUPP:
+			tst_brk(TCONF | TTERRNO, "CONFIG_KEY_NOTIFICATION is not set!");
+			break;
+		default:
+			tst_res(TINFO, "CONFIG_KEY_NOTIFICATION is set.");
+		}
+	}
+	TEST(keyctl(KEYCTL_WATCH_KEY, KEY_SPEC_SESSION_KEYRING, fd, 0x02));
+	if (TST_RET) {
+		switch (TST_ERR) {
+		case EOPNOTSUPP:
+			tst_brk(TCONF | TTERRNO, "CONFIG_KEY_NOTIFICATION is not set!");
+			break;
+		default:
+			tst_res(TINFO, "CONFIG_KEY_NOTIFICATION is set.");
+		}
+	}
 
 	return key;
 }
-- 
2.47.2