Messages in this thread Patch in this message | | | Subject | Re: [patch] printk: remove some dead code | From | Kay Sievers <> | Date | Tue, 03 Jul 2012 19:59:31 +0200 |
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On Tue, 2012-07-03 at 13:21 +0200, Kay Sievers wrote: > 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. That means we can remove the code here to handle log > > levels which are in the tens or hundreds column. > > We should do that for the facility value, now that level is split up > in separate fields. I'll prepare a fix.
Here it is. Nice tool, very useful.
Thanks again, Kay
From: Kay Sievers <kay@vrfy.org> Subject: 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> --- kernel/printk.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
--- a/kernel/printk.c +++ b/kernel/printk.c @@ -818,15 +818,16 @@ static size_t print_time(u64 ts, char *b 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) + if (prefix > 9) len++; - if (msg->level > 99) + if (prefix > 99) len++; } }
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