linux-kernel - Re: [PATCH net-next 08/12] net: bcmgenet: correct return value of __bcmgenet_tx

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Message-ID: <81581ab7-8c75-d020-f31b-60829c3f089b@gmail.com>
Date:   Mon, 13 Mar 2017 17:57:36 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Doug Berger <opendmb@...il.com>
Cc:     robh+dt@...nel.org, mark.rutland@....com, davem@...emloft.net,
        rafal@...ecki.pl, xow@...gle.com, joel@....id.au,
        jon.mason@...adcom.com, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        pgynther@...gle.com, jaedon.shin@...il.com
Subject: Re: [PATCH net-next 08/12] net: bcmgenet: correct return value of
 __bcmgenet_tx_reclaim

On 03/13/2017 05:41 PM, Doug Berger wrote:
> The reclaim function should return the number of buffer descriptors
> reclaimed, not just the number corresponding to skb packets.
> 
> Also, remove the unnecessary computation when updating the consumer
> index.
> 
> While this is not a functional problem it could degrade performance
> of napi in a fragmented transmit stream.
> 
> Signed-off-by: Doug Berger <opendmb@...il.com>

Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
-- 
Florian