On Tue, Jun 22, 2021 at 09:38:38PM -0700, Alexei Starovoitov wrote: > On Tue, Jun 22, 2021 at 9:09 PM Gary Lin <glin@xxxxxxxx> wrote: > > > > Per the kmsg document(*), 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. > > > > (*) 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@xxxxxxxx> > > Signed-off-by: Gary Lin <glin@xxxxxxxx> > > --- > > 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 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; > > Adding Dmitrii who is redesigning the whole bpfilter. Thanks. The same logic already exists in the bpfilter v1 patchset - [1]. 1. https://lore.kernel.org/bpf/c72bac57-84a0-ac4c-8bd8-08758715118e@xxxxxx/T/#mb36e20c4e5e4a70746bd50a109b1630687990214 -- Dmitrii Banshchikov
