netdev - Re: [RFC PATCH 04/12] net: introduce NETIF_F

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Date:	Thu, 16 Dec 2010 23:27:29 +0000
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Michał Mirosław <mirq-linux@...e.qmqm.pl>
Cc:	netdev@...r.kernel.org
Subject: Re: [RFC PATCH 04/12] net: introduce NETIF_F_RXCSUM

On Wed, 2010-12-15 at 23:24 +0100, Michał Mirosław wrote:
> Introduce NETIF_F_RXCSUM to replace device-private flags for RX checksum
> offload. Integrate it with ndo_fix_features.
> 
> ethtool_op_get_rx_csum() is removed altogether as nothing in-tree uses it.

Not explicitly, but what about drivers that turn TX and RX checksumming
on and off together?  They are implicitly covered by the case which
you're removing:

[...]
> -	case ETHTOOL_GRXCSUM:
> -		rc = ethtool_get_value(dev, useraddr, ethcmd,
> -				       (dev->ethtool_ops->get_rx_csum ?
> -					dev->ethtool_ops->get_rx_csum :
> -					ethtool_op_get_rx_csum));
[...]

Ben.

-- 
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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