linux-kernel - Re: question about netif

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Message-ID: <20130811155640.GA10070@electric-eye.fr.zoreil.com>
Date:	Sun, 11 Aug 2013 17:56:40 +0200
From:	Francois Romieu <romieu@...zoreil.com>
To:	Julia Lawall <julia.lawall@...6.fr>
Cc:	grant.likely@...aro.org, rob.herring@...xeda.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: Re: question about netif_rx

Julia Lawall <julia.lawall@...6.fr> :
> To my limited understanding, in a NAPI polling function, one should use 
> netif_receive_skb, rather than netif_rx.

Nit: or napi_gro_receive (+ napi_gro_flush with __napi_complete) when the
device offers some checksum offloading features.

> However, the via-velocity driver defines the NAPI polling function
> velocity_poll, which is the only caller of velocity_rx_srv, which
> is the only caller of velocity_receive_frame, which calls netif_rx.
> The call to netif_rx seems to predate the introduction of NAPI in
> this driver.  Is this correct?

You are right. It's a leftover of the NAPI changes in this driver.

Can you send a netif_receive_skb replacement patch for it ?

-- 
Ueimor
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