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From: Jean Tourrilhes <jt@hpl.hp.com>
To: Jarek Poplawski <jarkao2@o2.pl>
Cc: Greg Kroah-Hartman <gregkh@suse.de>,
	"David S. Miller" <davem@davemloft.net>,
	Linux kernel mailing list <linux-kernel@vger.kernel.org>,
	netdev@vger.kernel.org
Subject: Re: [PATCH 2.6.20] kobject net ifindex + rename
Date: Wed, 28 Feb 2007 10:45:41 -0800	[thread overview]
Message-ID: <20070228184541.GD6134@bougret.hpl.hp.com> (raw)
In-Reply-To: <20070228093437.GA1847@ff.dom.local>

On Wed, Feb 28, 2007 at 10:34:37AM +0100, Jarek Poplawski wrote:
> On 28-02-2007 02:27, Jean Tourrilhes wrote:
> > 	Hi all,
> ...
> > 	Patch for 2.6.20 is attached. The patch was tested on a system
> > running the hotplug scripts, and on another system running udev.
> > 
> > 	Have fun...
> > 
> > 	Jean
> > 
> > Signed-off-by: Jean Tourrilhes <jt@hpl.hp.com>
> > 
> > ---------------------------------------------------------
> ...
> > diff -u -p linux/net/core/net-sysfs.j1.c linux/net/core/net-sysfs.c
> > --- linux/net/core/net-sysfs.j1.c	2007-02-27 15:01:08.000000000 -0800
> > +++ linux/net/core/net-sysfs.c	2007-02-27 15:06:49.000000000 -0800
> > @@ -412,6 +412,17 @@ static int netdev_uevent(struct class_de
> >  	if ((size <= 0) || (i >= num_envp))
> >  		return -ENOMEM;
> >  
> > +	/* pass ifindex to uevent.
> > +	 * ifindex is useful as it won't change (interface name may change)
> > +	 * and is what RtNetlink uses natively. */
> > +	envp[i++] = buf;
> > +	n = snprintf(buf, size, "IFINDEX=%d", dev->ifindex) + 1;
> > +	buf += n;
> > +	size -= n;
> > +
> > +	if ((size <= 0) || (i >= num_envp))
> 
> Btw.:
> 1. if size == 10 and snprintf returns 9 (without NULL)
>    then n == 10 (with NULL), so isn't it enough (here and above):
>  
> 	if ((size < 0) || (i >= num_envp))

	I just cut'n'pasted the code a few line above. If the original
code is incorrect, it need fixing. And it will need fixing in probably
a lot of places.

> 2. shouldn't there be (here and above):
>  
> 		envp[--i] = NULL;
> 

	No, envp is local, so who cares.
	Thanks.

	Jean

  parent reply	other threads:[~2007-02-28 18:46 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-28  1:27 Jean Tourrilhes
2007-02-28  9:16 ` Johannes Berg
2007-02-28 18:51   ` Jean Tourrilhes
2007-02-28 19:03     ` Johannes Berg
2007-02-28  9:34 ` Jarek Poplawski
2007-02-28  9:52   ` Jarek Poplawski
2007-02-28 18:45   ` Jean Tourrilhes [this message]
2007-03-01  7:42     ` Jarek Poplawski
2007-03-01 19:27       ` Jean Tourrilhes
2007-03-02  9:18         ` Jarek Poplawski
2007-02-28 15:36 ` Greg KH
2007-02-28 18:43   ` Jean Tourrilhes
2007-03-01  0:26   ` Jean Tourrilhes
2007-03-01  0:37     ` Johannes Berg
2007-03-01  0:51       ` Jean Tourrilhes
2007-03-01  0:57         ` Johannes Berg

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