Re: pull request: wireless-2.6 2010-06-30

[David Miller <davem@davemloft.net>]

From: "John W. Linville" <linville@tuxdriver.com>
Date: Wed, 30 Jun 2010 14:53:20 -0400

> Here are a few more fixes intended for 2.6.35.  Included are a couple of
> small regression fixes for iwlwifi, one that causes connection stalls with
> 802.11n on some devices and another which could disable multicast traffic.
> Also included is an ath9k fix which avoids a null pointer dereference
> resulting from a timer leak.
> 
> Please let me know if there are problems!
...
>   git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git master

Pulled, thanks John.

> @@ -1329,6 +1328,12 @@ void iwl_configure_filter(struct ieee80211_hw *hw,
>  
>  	mutex_unlock(&priv->mutex);
>  
> +	/*
> +	 * Receiving all multicast frames is always enabled by the
> +	 * default flags setup in iwl_connection_init_rx_config()
> +	 * since we currently do not support programming multicast
> +	 * filters into the device.
> +	 */
>  	*total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
>  			FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;

Note that this is an amazingly serious limitation.

This basically makes iwl chips unsuitable for use on networks where
real multicast use is common.