linux-kernel - Re: Patch Very Minor to loopback.c

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Date:	Thu, 12 Jun 2014 22:13:28 +0200
From:	Richard Weinberger <richard.weinberger@...il.com>
To:	Zachary <zacharyw09264@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Patch Very Minor to loopback.c

On Thu, Jun 12, 2014 at 9:43 PM, Zachary <zacharyw09264@...il.com> wrote:
> Very minor patch to loopback.c that I noticed while comparing the
> dummy.c code to loopback.c code (dummy.c was based on loopback.c).  I
> did not see a maintainer in MAINTAINERS in my cursory glance, so I
> apologize if this is to the wrong place.  I am testing this patch
> right now on my laptop and it appears to be working without issues.
> It also compiled without warnings.
>
> diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
> index bb96409..f9f88d7 100644
> --- a/drivers/net/loopback.c
> +++ b/drivers/net/loopback.c
> @@ -22,6 +22,7 @@
>   *                                      interface.
>   *             Alexey Kuznetsov:       Potential hang under some extreme
>   *                                     cases removed.
> + *             Zachary Winnerman:  Extremely minor patch in loopback_xmit

No need to add your name here.
Nowadays we have git to respect everyone’s credit.

>   *
>   *             This program is free software; you can redistribute it and/or
>   *             modify it under the terms of the GNU General Public License
> @@ -72,7 +73,6 @@ static netdev_tx_t loopback_xmit(struct sk_buff *skb,
>                                  struct net_device *dev)
>  {
>         struct pcpu_lstats *lb_stats;
> -       int len;
>
>         skb_orphan(skb);
>
> @@ -86,10 +86,9 @@ static netdev_tx_t loopback_xmit(struct sk_buff *skb,
>         /* it's OK to use per_cpu_ptr() because BHs are off */
>         lb_stats = this_cpu_ptr(dev->lstats);
>
> -       len = skb->len;
>         if (likely(netif_rx(skb) == NET_RX_SUCCESS)) {
>                 u64_stats_update_begin(&lb_stats->syncp);
> -               lb_stats->bytes += len;
> +               lb_stats->bytes += skb->len;
>                 lb_stats->packets++;
>                 u64_stats_update_end(&lb_stats->syncp);
>         }
> --
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-- 
Thanks,
//richard
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