[PATCH] libertas: Fix ethtool statistics

[Dan Williams]

On Mon, 2008-05-19 at 16:32 +0100, David Woodhouse wrote:
> Fix various problems:
>  - We converted MESH_ACCESS to a direct command but missed this caller.
>  - We were trying to access mesh stats even on meshless firmware.
>  - We should really zero the buffer if something goes wrong.
> 
> Signed-off-by: David Woodhouse <dwmw2 at infradead.org>

Acked-by: Dan Williams <dcbw at redhat.com>

> diff --git a/drivers/net/wireless/libertas/ethtool.c b/drivers/net/wireless/libertas/ethtool.c
> index dcfdb40..688d60d 100644
> --- a/drivers/net/wireless/libertas/ethtool.c
> +++ b/drivers/net/wireless/libertas/ethtool.c
> @@ -73,8 +73,8 @@ out:
>          return ret;
>  }
>  
> -static void lbs_ethtool_get_stats(struct net_device * dev,
> -				struct ethtool_stats * stats, u64 * data)
> +static void lbs_ethtool_get_stats(struct net_device *dev,
> +				  struct ethtool_stats *stats, uint64_t *data)
>  {
>  	struct lbs_private *priv = dev->priv;
>  	struct cmd_ds_mesh_access mesh_access;
> @@ -83,12 +83,12 @@ static void lbs_ethtool_get_stats(struct net_device * dev,
>  	lbs_deb_enter(LBS_DEB_ETHTOOL);
>  
>  	/* Get Mesh Statistics */
> -	ret = lbs_prepare_and_send_command(priv,
> -			CMD_MESH_ACCESS, CMD_ACT_MESH_GET_STATS,
> -			CMD_OPTION_WAITFORRSP, 0, &mesh_access);
> +	ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_STATS, &mesh_access);
>  
> -	if (ret)
> +	if (ret) {
> +		memset(data, 0, MESH_STATS_NUM*(sizeof(uint64_t)));
>  		return;
> +	}
>  
>  	priv->mstats.fwd_drop_rbt = le32_to_cpu(mesh_access.data[0]);
>  	priv->mstats.fwd_drop_ttl = le32_to_cpu(mesh_access.data[1]);
> @@ -111,19 +111,18 @@ static void lbs_ethtool_get_stats(struct net_device * dev,
>  	lbs_deb_enter(LBS_DEB_ETHTOOL);
>  }
>  
> -static int lbs_ethtool_get_sset_count(struct net_device * dev, int sset)
> +static int lbs_ethtool_get_sset_count(struct net_device *dev, int sset)
>  {
> -	switch (sset) {
> -	case ETH_SS_STATS:
> +	struct lbs_private *priv = dev->priv;
> +
> +	if (sset == ETH_SS_STATS && dev == priv->mesh_dev)
>  		return MESH_STATS_NUM;
> -	default:
> -		return -EOPNOTSUPP;
> -	}
> +
> +	return -EOPNOTSUPP;
>  }
>  
>  static void lbs_ethtool_get_strings(struct net_device *dev,
> -					  u32 stringset,
> -					  u8 * s)
> +				    uint32_t stringset, uint8_t *s)
>  {
>  	int i;
>  
>