netdev - RE: [Pv-drivers] [PATCH net-next-2.6 3/3] vmxnet3: Remove incorrect implementation of ethtool_ops::get_flags()

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Date:	Wed, 30 Jun 2010 08:44:34 -0700
From:	Bhavesh Davda <bhavesh@...are.com>
To:	Ben Hutchings <bhutchings@...arflare.com>,
	David Miller <davem@...emloft.net>
CC:	"VMware, Inc." <pv-drivers@...are.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: [Pv-drivers] [PATCH net-next-2.6 3/3] vmxnet3: Remove incorrect
 implementation of ethtool_ops::get_flags()

Thanks for fixing this, Ben! Had to look at ethtool-2.6.34 src to convince myself of the correctness. Looks good to me. 

Signed-off-by: Bhavesh Davda <bhavesh@...are.com>

ps: I do wonder, however, why not always use ethtool_op_get_flags for all drivers, and mask whatever is returned by the driver specific dev->ethtool_ops->get_flags with flags_dup_features instead of this approach?

- Bhavesh

Bhavesh P. Davda

> -----Original Message-----
> From: pv-drivers-bounces@...are.com [mailto:pv-drivers-
> bounces@...are.com] On Behalf Of Ben Hutchings
> Sent: Wednesday, June 30, 2010 5:48 AM
> To: David Miller
> Cc: VMware, Inc.; netdev@...r.kernel.org
> Subject: [Pv-drivers] [PATCH net-next-2.6 3/3] vmxnet3: Remove
> incorrect implementation of ethtool_ops::get_flags()
> 
> Only some netdev feature flags correspond directly to ethtool feature
> flags.  ethtool_op_get_flags() does the right thing.
> 
> Signed-off-by: Ben Hutchings <bhutchings@...arflare.com>
> ---
>  drivers/net/vmxnet3/vmxnet3_ethtool.c |    8 +-------
>  1 files changed, 1 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c
> b/drivers/net/vmxnet3/vmxnet3_ethtool.c
> index 8a71a21..de1ba14 100644
> --- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
> +++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c
> @@ -275,12 +275,6 @@ vmxnet3_get_strings(struct net_device *netdev, u32
> stringset, u8 *buf)
>  	}
>  }
> 
> -static u32
> -vmxnet3_get_flags(struct net_device *netdev)
> -{
> -	return netdev->features;
> -}
> -
>  static int
>  vmxnet3_set_flags(struct net_device *netdev, u32 data)
>  {
> @@ -559,7 +553,7 @@ static struct ethtool_ops vmxnet3_ethtool_ops = {
>  	.get_tso           = ethtool_op_get_tso,
>  	.set_tso           = ethtool_op_set_tso,
>  	.get_strings       = vmxnet3_get_strings,
> -	.get_flags	   = vmxnet3_get_flags,
> +	.get_flags	   = ethtool_op_get_flags,
>  	.set_flags	   = vmxnet3_set_flags,
>  	.get_sset_count	   = vmxnet3_get_sset_count,
>  	.get_ethtool_stats = vmxnet3_get_ethtool_stats,
> --
> 1.6.2.5
> 
> --
> 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.
> 
> _______________________________________________
> Pv-drivers mailing list
> Pv-drivers@...are.com
> http://mailman2.vmware.com/mailman/listinfo/pv-drivers
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