[PATCH 2/2] net: filter: Use WARN_RATELIMIT

[Joe Perches]

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 <greearb@xxxxxxxxxxxxxxx>
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
 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

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