[LTP] [PATCH 1/2] lib: Add known-fail test tag

[Petr Vorel]

to save test reviewers time.

Suggested-by: Cyril Hrubis <chrubis@suse.cz>
Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
 doc/c-test-api.txt | 1 +
 lib/tst_test.c     | 8 ++++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/doc/c-test-api.txt b/doc/c-test-api.txt
index 6481531cf2..f8ee4de0d1 100644
--- a/doc/c-test-api.txt
+++ b/doc/c-test-api.txt
@@ -2259,6 +2259,7 @@ struct tst_test test = {
 	.tags = (const struct tst_tag[]) {
 		{"linux-git", "9392a27d88b9"},
 		{"linux-git", "ff002b30181d"},
+		{"known-fail", "ustat() is known to fail with EINVAL on Btrfs"},
 		{"linux-stable-git", "c4a23c852e80"},
 		{"CVE", "2020-29373"},
 		{}
diff --git a/lib/tst_test.c b/lib/tst_test.c
index 23fc0ebf48..901b363704 100644
--- a/lib/tst_test.c
+++ b/lib/tst_test.c
@@ -762,10 +762,13 @@ static void print_failure_hint(const char *tag, const char *hint,
 				hint_printed = 1;
 				fprintf(stderr, "\n");
 				print_colored("HINT: ");
-				fprintf(stderr, "You _MAY_ be %s, see:\n\n", hint);
+				fprintf(stderr, "You _MAY_ be %s:\n\n", hint);
 			}
 
-			fprintf(stderr, "%s%s\n", url, tags[i].value);
+			if (url)
+				fprintf(stderr, "%s%s\n", url, tags[i].value);
+			else
+				fprintf(stderr, "%s\n", tags[i].value);
 		}
 	}
 }
@@ -778,6 +781,7 @@ static void print_failure_hints(void)
 					   LINUX_STABLE_GIT_URL);
 	print_failure_hint("glibc-git", "missing glibc fixes", GLIBC_GIT_URL);
 	print_failure_hint("CVE", "vulnerable to CVE(s)", CVE_DB_URL);
+	print_failure_hint("known-fail", "hit by known kernel failures", NULL);
 }
 
 static void do_exit(int ret)
-- 
2.34.1