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| author |   Gary Lin <glin@suse.com> | 2021-06-23 12:09:18 +0800 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2021-06-25 13:13:50 +0200 |
| commit | a196fa78a26571359740f701cf30d774eb8a72cb (patch) | |
| tree | e3acaef4f2f37277fb8c626cf7a471d04b7d2142 /net/bpfilter | |
| parent | ti: Remove rcu_read_lock() around XDP program invocation (diff) | |
| download | wireguard-linux-a196fa78a26571359740f701cf30d774eb8a72cb.tar.xz wireguard-linux-a196fa78a26571359740f701cf30d774eb8a72cb.zip | |
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 "<N>" 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: 36c4357c63f3 ("net: bpfilter: print umh messages to /dev/kmsg")
Reported-by: Martin Loviska <mloviska@suse.com>
Signed-off-by: Gary Lin <glin@suse.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Dmitrii Banshchikov <me@ubique.spb.ru>
Link: https://lore.kernel.org/bpf/20210623040918.8683-1-glin@suse.com
Diffstat (limited to 'net/bpfilter')
| -rw-r--r-- | net/bpfilter/main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bpfilter/main.c b/net/bpfilter/main.c index 05e1cfc1e5cd..291a92546246 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; |