diff options
| author | Kay Sievers <kay@vrfy.org> | 2012-07-06 09:50:09 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-07-06 09:50:09 -0700 |
| commit | 43a73a50b352cd3df25b3ced72033942a6a0f919 (patch) | |
| tree | d197a4aede4273b31697b8ff11286ded7966bf48 /kernel | |
| parent | e3f5a5f27153228569f3396049838e9727dae86e (diff) | |
| download | lwn-43a73a50b352cd3df25b3ced72033942a6a0f919.tar.gz lwn-43a73a50b352cd3df25b3ced72033942a6a0f919.zip | |
kmsg: add the facility number to the syslog prefix
After the recent split of facility and level into separate variables,
we miss the facility value (always 0 for kernel-originated messages)
in the syslog prefix.
On Tue, Jul 3, 2012 at 12:45 PM, Dan Carpenter <dan.carpenter@oracle.com> wrote:
> Static checkers complain about the impossible condition here.
>
> In 084681d14e ('printk: flush continuation lines immediately to
> console'), we changed msg->level from being a u16 to being an unsigned
> 3 bit bitfield.
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/printk.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/kernel/printk.c b/kernel/printk.c index 505863aa3a7f..37cde752cb8a 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -818,15 +818,18 @@ static size_t print_time(u64 ts, char *buf) static size_t print_prefix(const struct log *msg, bool syslog, char *buf) { size_t len = 0; + unsigned int prefix = (msg->facility << 3) | msg->level; if (syslog) { if (buf) { - len += sprintf(buf, "<%u>", msg->level); + len += sprintf(buf, "<%u>", prefix); } else { len += 3; - if (msg->level > 9) - len++; - if (msg->level > 99) + if (prefix > 999) + len += 3; + else if (prefix > 99) + len += 2; + else if (prefix > 9) len++; } } |