linux-kernel - Re: [PATCH v4 3/3] net/xen-netback: Don't mix hexa and decimal with 0x in the printf format

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Date:	Tue, 16 Jun 2015 15:09:10 -0700
From:	Joe Perches <joe@...ches.com>
To:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:	Julien Grall <julien.grall@...rix.com>,
	xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org,
	Wei Liu <wei.liu2@...rix.com>,
	Ian Campbell <ian.campbell@...rix.com>, netdev@...r.kernel.org
Subject: Re: [PATCH v4 3/3] net/xen-netback: Don't mix hexa and decimal with
 0x in the printf format

On Tue, 2015-06-16 at 23:07 +0300, Sergei Shtylyov wrote:
> On 06/16/2015 10:10 PM, Julien Grall wrote:
> > Append 0x to all %x in order to avoid while reading when there is other
> > decimal value in the log.
[]
> > @@ -874,7 +874,7 @@ static inline void xenvif_grant_handle_set(struct xenvif_queue *queue,
> >   	if (unlikely(queue->grant_tx_handle[pending_idx] !=
> >   		     NETBACK_INVALID_HANDLE)) {
> >   		netdev_err(queue->vif->dev,
> > -			   "Trying to overwrite active handle! pending_idx: %x\n",
> > +			   "Trying to overwrite active handle! pending_idx: 0x%x\n",
> 
>     Using "%#x" is shorter ind does the same.

That's true, but it's also far less common.

$ git grep -E "%#[\*\d\.]*x" | wc -l
1419
$ git grep "0x%" | wc -l
29844


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