Re: [PATCH 4/5] SLIP: Add error message for xleft non-zero

Paul Bolle
2013-07-24T22:41:28Z

On Wed, 2013-07-24 at 15:18 -0700, Greg Kroah-Hartman wrote:
> On Tue, Jul 02, 2013 at 04:31:33PM +0100, Dean Jenkins wrote:
> > Add a printk to show when xleft is non-zero in sl_encaps.
> >
> > The idea is to see whether a previous SLIP frame failed to be
> > fully transmitted.
> >
> > Signed-off-by: Dean Jenkins <Dean_Jenkins@mentor.com>
> > ---
> > drivers/net/slip/slip.c | 4 ++++
> > 1 file changed, 4 insertions(+)
> >
> > diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c
> > index f7303e0..e2eff84 100644
> > --- a/drivers/net/slip/slip.c
> > +++ b/drivers/net/slip/slip.c
> > @@ -395,6 +395,10 @@ static void sl_encaps(struct slip *sl, unsigned char *icp, int len)
> > #endif
> > count = slip_esc(p, sl->xbuff, len);
> >
> > + if (sl->xleft)
> > + printk(KERN_ERR "%s: ERROR: xleft is non-zero %d\n",
> > + __func__, sl->xleft);
>
> dev_err() perhaps?

After looking at the commit explanation and the patch itself I wonder
why this should be printed at error level. Especially since patch 3/5
will set sl->xleft to zero immediately after.

So, dev_dbg() perhaps?

And can't this be merged into 3/5?

Paul Bolle