Virtio_console usage of early printk

Christian Borntraeger borntraeger at de.ibm.com
Tue Mar 23 19:17:58 EST 2010


Am Dienstag 23 März 2010 03:16:20 schrieb Amit Shah:
> On (Mon) Mar 22 2010 [18:45:47], François Diakhate wrote:
> > the console. Does the attached patch seem valid ? Feedback from s390
> > and powerpc users who use this functionality would be appreciated.
> 
> Looks OK to me, Christian, others, could you comment on this please?

Looks good and boot tested with kuli on s390.

Acked-by: Christian Borntraeger <borntraeger at de.ibm.com>

> > From 3961f380bbe84a1036ddfc823039cbee31b44dcb Mon Sep 17 00:00:00 2001
> > From: =?utf-8?q?Fran=C3=A7ois=20Diakhat=C3=A9?= <fdiakh at gmail.com>
> > Date: Thu, 18 Mar 2010 14:48:20 +0100
> > Subject: virtio: console: Fix early_put_chars usage
> > 
> > Currently early_put_chars is not used by virtio_console because it can only be used once a port has been found, at which point it's too late because it is no longer needed. This patch should fix it.
> > ---
> >  drivers/char/virtio_console.c |    6 +++---
> >  1 files changed, 3 insertions(+), 3 deletions(-)
> > 
> > diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
> > index f404ccf..691ba21 100644
> > --- a/drivers/char/virtio_console.c
> > +++ b/drivers/char/virtio_console.c
> > @@ -645,13 +645,13 @@ static int put_chars(u32 vtermno, const char *buf, int count)
> >  {
> >  	struct port *port;
> >  
> > +	if (unlikely(early_put_chars))
> > +		return early_put_chars(vtermno, buf, count);
> > +
> >  	port = find_port_by_vtermno(vtermno);
> >  	if (!port)
> >  		return 0;
> >  
> > -	if (unlikely(early_put_chars))
> > -		return early_put_chars(vtermno, buf, count);
> > -
> >  	return send_buf(port, (void *)buf, count);
> >  }


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