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

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Date:	Wed, 24 Jul 2013 15:18:49 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	Dean Jenkins <Dean_Jenkins@...tor.com>
Cc:	Andre Naujoks <nautsch2@...il.com>, linux-kernel@...r.kernel.org,
	Jiri Slaby <jslaby@...e.cz>
Subject: Re: [PATCH 4/5] SLIP: Add error message for xleft non-zero

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@...tor.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?

thanks,

greg k-h
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