From 657e94c77fba25d31d636af670346c598992c0d1 Mon Sep 17 00:00:00 2001 From: Gary Lin Date: Wed, 23 Jun 2021 12:09:18 +0800 Subject: [PATCH] bpfilter: Specify the log level for the kmsg message Per the kmsg document [0], if we don't specify the log level with a prefix "" in the message string, the default log level will be applied to the message. Since the default level could be warning(4), this would make the log utility such as journalctl treat the message, "Started bpfilter", as a warning. To avoid confusion, this commit adds the prefix "<5>" to make the message always a notice. [0] https://www.kernel.org/doc/Documentation/ABI/testing/dev-kmsg Fixes: f5bfcceb660a ("net: bpfilter: print umh messages to /dev/kmsg") Reported-by: Martin Loviska Signed-off-by: Gary Lin Signed-off-by: Daniel Borkmann Acked-by: Dmitrii Banshchikov Link: https://lore.kernel.org/bpf/20210623040918.8683-1-glin@suse.com --- net/bpfilter/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bpfilter/main.c b/net/bpfilter/main.c index 05e1cfc1e5cd1..291a925462463 100644 --- a/net/bpfilter/main.c +++ b/net/bpfilter/main.c @@ -57,7 +57,7 @@ int main(void) { debug_f = fopen("/dev/kmsg", "w"); setvbuf(debug_f, 0, _IOLBF, 0); - fprintf(debug_f, "Started bpfilter\n"); + fprintf(debug_f, "<5>Started bpfilter\n"); loop(); fclose(debug_f); return 0; -- 2.39.5