diff mbox series

[bpf-next,v3,2/8] selftests/bpf: correctly move 'log' upon successful match

Message ID 20240820102357.3372779-3-eddyz87@gmail.com (mailing list archive)
State Accepted
Commit d0a29cdb6ef95d8a175e09ab2d1334271f047e60
Delegated to: BPF
Headers show
Series __jited test tag to check disassembly after jit | expand

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Commit Message

Eduard Zingerman Aug. 20, 2024, 10:23 a.m. UTC 
Suppose log="foo bar buz" and msg->substr="bar".
In such case current match processing logic would update 'log' as
follows: log += strlen(msg->substr); -> log += 3 -> log=" bar".
However, the intent behind the 'log' update is to make it point after
the successful match, e.g. to make log=" buz" in the example above.

Fixes: 4ef5d6af4935 ("selftests/bpf: no need to track next_match_pos in struct test_loader")
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
---
 tools/testing/selftests/bpf/test_loader.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/test_loader.c b/tools/testing/selftests/bpf/test_loader.c
index 1b1290e090e7..f5f5d16ac550 100644
--- a/tools/testing/selftests/bpf/test_loader.c
+++ b/tools/testing/selftests/bpf/test_loader.c
@@ -522,7 +522,7 @@  static void validate_msgs(char *log_buf, struct expected_msgs *msgs,
 		if (msg->substr) {
 			match = strstr(log, msg->substr);
 			if (match)
-				log += strlen(msg->substr);
+				log = match + strlen(msg->substr);
 		} else {
 			err = regexec(&msg->regex, log, 1, reg_match, 0);
 			if (err == 0) {