[PATCH 2/2] net: filter: Use WARN_RATELIMIT
From: Joe Perches <joe@perches.com>
Date: 2011-05-21 17:48:56
Also in:
linux-arch, lkml
Subsystem:
bpf [general] (safe dynamic programs and tools), bpf [networking] (tcx & tc bpf, sock_addr), networking [general], the rest · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Martin KaFai Lau, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
A mis-configured filter can spam the logs with lots of stack traces. Rate-limit the warnings and add printout of the bogus filter information. Original-patch-by: Ben Greear [off-list ref] Signed-off-by: Joe Perches <joe@perches.com> --- net/core/filter.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/net/core/filter.c b/net/core/filter.c
index 0eb8c44..0e3622f 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c@@ -350,7 +350,9 @@ load_b: continue; } default: - WARN_ON(1); + WARN_RATELIMIT(1, "Unknown code:%u jt:%u tf:%u k:%u\n", + fentry->code, fentry->jt, + fentry->jf, fentry->k); return 0; } }
--
1.7.5.rc3.dirty