netdev - Re: [patch net] team: bcast: convert return value of team_dev_queue

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Message-ID: <20121121125328.GA6812@minipsycho.orion>
Date:	Wed, 21 Nov 2012 13:53:28 +0100
From:	Jiri Pirko <jiri@...nulli.us>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net, dan.carpenter@...cle.com
Subject: Re: [patch net] team: bcast: convert return value of
 team_dev_queue_xmit() to bool correctly


I forgot to mention this bug was introduced by:
team: add broadcast mode (5fc889911a99043a97da1daa0d010ad72cbc3042)

Wed, Nov 21, 2012 at 01:34:45PM CET, jiri@...nulli.us wrote:
>The thing is that team_dev_queue_xmit() returns NET_XMIT_* or -E*.
>bc_trasmit() should return true in case all went well. So use ! to get
>correct retval from team_dev_queue_xmit() result.
>This bug caused iface statistics to be badly computed.
>
>Reported-by: Dan Carpenter <dan.carpenter@...cle.com>
>Signed-off-by: Jiri Pirko <jiri@...nulli.us>
>---
> drivers/net/team/team_mode_broadcast.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
>diff --git a/drivers/net/team/team_mode_broadcast.c b/drivers/net/team/team_mode_broadcast.c
>index 9db0171..c5db428 100644
>--- a/drivers/net/team/team_mode_broadcast.c
>+++ b/drivers/net/team/team_mode_broadcast.c
>@@ -29,8 +29,8 @@ static bool bc_transmit(struct team *team, struct sk_buff *skb)
> 			if (last) {
> 				skb2 = skb_clone(skb, GFP_ATOMIC);
> 				if (skb2) {
>-					ret = team_dev_queue_xmit(team, last,
>-								  skb2);
>+					ret = !team_dev_queue_xmit(team, last,
>+								   skb2);
> 					if (!sum_ret)
> 						sum_ret = ret;
> 				}
>@@ -39,7 +39,7 @@ static bool bc_transmit(struct team *team, struct sk_buff *skb)
> 		}
> 	}
> 	if (last) {
>-		ret = team_dev_queue_xmit(team, last, skb);
>+		ret = !team_dev_queue_xmit(team, last, skb);
> 		if (!sum_ret)
> 			sum_ret = ret;
> 	}
>-- 
>1.8.0
>
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