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authorGary Lin <glin@suse.com>2021-06-23 07:09:18 +0300
committerDaniel Borkmann <daniel@iogearbox.net>2021-06-25 14:13:50 +0300
commita196fa78a26571359740f701cf30d774eb8a72cb (patch)
treee3acaef4f2f37277fb8c626cf7a471d04b7d2142 /net/bpfilter
parent0cc84b9a6003fa7f6ef5d19e7c8532a01cd41776 (diff)
downloadlinux-a196fa78a26571359740f701cf30d774eb8a72cb.tar.xz
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.c2
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;