From a413fed99b15f3cec15aaadf6dad2a5c227fd56a Mon Sep 17 00:00:00 2001 From: Ilya Maximets Date: Wed, 18 Oct 2023 22:46:10 +0200 Subject: [PATCH] tc: Improve logging of mismatched actions. Currently we log the 980-ish byte long tc_action structure as a single long hex string. That is very hard to read and hard to spot the difference between two. And most of the fields are zero. Use the sparse hex dump instead as we do for keys already. Ex.: Action 1 mismatch: - Expected Action: 00000000 f0 3c 00 00 01 00 00 00-00 00 00 00 00 00 00 00 000003d0 00 00 00 00 ff ff ff ff- - Received Action: 00000000 f0 3c 00 00 01 01 00 00-00 00 00 00 00 00 00 00 000003d0 00 00 00 00 ff ff ff ff- Without the change, each action would be a 1900+ characters long string of mostly zeroes. Acked-by: Simon Horman Acked-by: Eelco Chaudron Signed-off-by: Ilya Maximets --- lib/tc.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/lib/tc.c b/lib/tc.c index f8570363327..e9bcae4e4b1 100644 --- a/lib/tc.c +++ b/lib/tc.c @@ -3858,15 +3858,13 @@ log_tc_flower_match(const char *msg, ds_put_cstr(&s, "\nExpected Actions:\n"); for (i = 0, action = a->actions; i < a->action_count; i++, action++) { - ds_put_cstr(&s, " - "); - ds_put_hex(&s, action, sizeof *action); - ds_put_cstr(&s, "\n"); + ds_put_format(&s, " - %d -\n", i); + ds_put_sparse_hex_dump(&s, action, sizeof *action, 0, false); } - ds_put_cstr(&s, "Received Actions:\n"); + ds_put_cstr(&s, "\nReceived Actions:\n"); for (i = 0, action = b->actions; i < b->action_count; i++, action++) { - ds_put_cstr(&s, " - "); - ds_put_hex(&s, action, sizeof *action); - ds_put_cstr(&s, "\n"); + ds_put_format(&s, " - %d -\n", i); + ds_put_sparse_hex_dump(&s, action, sizeof *action, 0, false); } } else { /* Only dump the delta in actions. */ @@ -3875,12 +3873,13 @@ log_tc_flower_match(const char *msg, for (int i = 0; i < a->action_count; i++, action_a++, action_b++) { if (memcmp(action_a, action_b, sizeof *action_a)) { - ds_put_format(&s, - "\nAction %d mismatch:\n - Expected Action: ", - i); - ds_put_hex(&s, action_a, sizeof *action_a); - ds_put_cstr(&s, "\n - Received Action: "); - ds_put_hex(&s, action_b, sizeof *action_b); + ds_put_format(&s, "\nAction %d mismatch:\n" + " - Expected Action:\n", i); + ds_put_sparse_hex_dump(&s, action_a, sizeof *action_a, + 0, false); + ds_put_cstr(&s, " - Received Action:\n"); + ds_put_sparse_hex_dump(&s, action_b, sizeof *action_b, + 0, false); } } }