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iwlwifi: add test to determine if interface in monitor mode

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mac80211 sets driver in monitor mode through configuring the
RX filters. We cannot trust priv->iw_mode to be accurate
regarding monitor mode as iw_mode is only set in add_interface,
which is not called by mac80211 when in monitor mode.

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Chatre, Reinette 2009-01-23 13:45:09 -08:00 committed by John W. Linville
parent 1a9f509368
commit 4c4df78f5e
1 changed files with 12 additions and 0 deletions
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12
drivers/net/wireless/iwlwifi/iwl-core.c
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@ -698,6 +698,18 @@ static u8 iwl_count_chain_bitmap(u32 chain_bitmap)
return res;
}
/**
* iwl_is_monitor_mode - Determine if interface in monitor mode
*
* priv->iw_mode is set in add_interface, but add_interface is
* never called for monitor mode. The only way mac80211 informs us about
* monitor mode is through configuring filters (call to configure_filter).
*/
static bool iwl_is_monitor_mode(struct iwl_priv *priv)
{
return !!(priv->staging_rxon.filter_flags & RXON_FILTER_PROMISC_MSK);
}
/**
* iwl_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
*