netdev - Re: [PATCH 19/54] enic: Call dev_kfree_skb_any instead of dev_kfree

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Date:	Tue, 25 Mar 2014 08:24:50 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	xiyou.wangcong@...il.com, mpm@...enic.com, satyam.sharma@...il.com
Subject: Re: [PATCH 19/54] enic: Call dev_kfree_skb_any instead of
 dev_kfree_skb.

On Mon, 2014-03-24 at 23:05 -0700, Eric W. Biederman wrote:
> From: "Eric W. Biederman" <ebiederm@...ssion.com>
> 
> Replace dev_kfree_skb with dev_kfree_skb_any in enic_hard_start_xmit
> that can be called in hard irq and other contexts.
> 
> enic_hard_start_xmit only frees the skb when dropping it.
> 
> Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>
> ---
>  drivers/net/ethernet/cisco/enic/enic_main.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
> index 4c35fc8fad99..2945718ce806 100644
> --- a/drivers/net/ethernet/cisco/enic/enic_main.c
> +++ b/drivers/net/ethernet/cisco/enic/enic_main.c
> @@ -521,7 +521,7 @@ static netdev_tx_t enic_hard_start_xmit(struct sk_buff *skb,
>  	unsigned int txq_map;
>  
>  	if (skb->len <= 0) {
> -		dev_kfree_skb(skb);
> +		dev_kfree_skb_any(skb);
>  		return NETDEV_TX_OK;
>  	}
>  
> @@ -536,7 +536,7 @@ static netdev_tx_t enic_hard_start_xmit(struct sk_buff *skb,
>  	if (skb_shinfo(skb)->gso_size == 0 &&
>  	    skb_shinfo(skb)->nr_frags + 1 > ENIC_NON_TSO_MAX_DESC &&
>  	    skb_linearize(skb)) {
> -		dev_kfree_skb(skb);
> +		dev_kfree_skb_any(skb);
>  		return NETDEV_TX_OK;
>  	}
>  

Yep, apparently this driver do not care incrementing tx_errors...

Acked-by: Eric Dumazet <edumazet@...gle.com>


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