cfg80211: allow leaving MU-MIMO monitor configuration unchanged
When changing monitor parameters, not setting the MU-MIMO attributes
should mean that they're not changed - it's documented that to turn
the feature off it's necessary to set all-zero group membership and
an invalid follow-address. This isn't implemented.
Fix this by making the parameters pointers, stop reusing the macaddr
struct member, and documenting that NULL pointers mean unchanged.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 273b1dc..ba9348e 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -370,13 +370,16 @@ static inline void wiphy_read_of_freq_limits(struct wiphy *wiphy)
* This feature is only fully supported by drivers that enable the
* %NL80211_FEATURE_MAC_ON_CREATE flag. Others may support creating
** only p2p devices with specified MAC.
- * @vht_mumimo_groups: MU-MIMO groupID. used for monitoring only
- * packets belonging to that MU-MIMO groupID.
+ * @vht_mumimo_groups: MU-MIMO groupID, used for monitoring MU-MIMO packets
+ * belonging to that MU-MIMO groupID; %NULL if not changed
+ * @vht_mumimo_follow_addr: MU-MIMO follow address, used for monitoring
+ * MU-MIMO packets going to the specified station; %NULL if not changed
*/
struct vif_params {
int use_4addr;
u8 macaddr[ETH_ALEN];
- u8 vht_mumimo_groups[VHT_MUMIMO_GROUPS_DATA_LEN];
+ const u8 *vht_mumimo_groups;
+ const u8 *vht_mumimo_follow_addr;
};
/**