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authorLuciano Coelho <luciano.coelho@intel.com>2014-10-08 10:48:36 +0400
committerJohannes Berg <johannes.berg@intel.com>2014-10-09 13:30:08 +0400
commite9a21949b79414dda42a017855b288901c07e613 (patch)
tree0c8b19de0f1b906c4a7e0072b056c454a2238b2f /net
parent2ba45384e5426b9a4aeb77656dce0bf3250ce54e (diff)
downloadlinux-e9a21949b79414dda42a017855b288901c07e613.tar.xz
mac80211: add extended channel switching capability if the driver supports CSA
The Extended Channel Switching capability bit in the extended capabilities element must be set if the driver supports CSA on non-beaconing interfaces. Since this capability needs to be set during driver registration, the extended_capabiliities global variable needs to be moved to the local structure so that it can be modified. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/ieee80211_i.h3
-rw-r--r--net/mac80211/main.c20
2 files changed, 14 insertions, 9 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index c2aaec4dfcf0..a9cc49128980 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1307,6 +1307,9 @@ struct ieee80211_local {
/* virtual monitor interface */
struct ieee80211_sub_if_data __rcu *monitor_sdata;
struct cfg80211_chan_def monitor_chandef;
+
+ /* extended capabilities provided by mac80211 */
+ u8 ext_capa[8];
};
static inline struct ieee80211_sub_if_data *
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index 0de7c93bf62b..107d1c884de3 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -478,11 +478,6 @@ static const struct ieee80211_vht_cap mac80211_vht_capa_mod_mask = {
},
};
-static const u8 extended_capabilities[] = {
- 0, 0, 0, 0, 0, 0, 0,
- WLAN_EXT_CAPA8_OPMODE_NOTIF,
-};
-
struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
const struct ieee80211_ops *ops)
{
@@ -539,10 +534,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
WIPHY_FLAG_REPORTS_OBSS |
WIPHY_FLAG_OFFCHAN_TX;
- wiphy->extended_capabilities = extended_capabilities;
- wiphy->extended_capabilities_mask = extended_capabilities;
- wiphy->extended_capabilities_len = ARRAY_SIZE(extended_capabilities);
-
if (ops->remain_on_channel)
wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
@@ -591,6 +582,13 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
wiphy->ht_capa_mod_mask = &mac80211_ht_capa_mod_mask;
wiphy->vht_capa_mod_mask = &mac80211_vht_capa_mod_mask;
+ local->ext_capa[7] = WLAN_EXT_CAPA8_OPMODE_NOTIF;
+
+ wiphy->extended_capabilities = local->ext_capa;
+ wiphy->extended_capabilities_mask = local->ext_capa;
+ wiphy->extended_capabilities_len =
+ ARRAY_SIZE(local->ext_capa);
+
INIT_LIST_HEAD(&local->interfaces);
__hw_addr_init(&local->mc_list);
@@ -958,6 +956,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
if (local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)
local->hw.wiphy->flags |= WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
+ /* mac80211 supports eCSA, if the driver supports STA CSA at all */
+ if (local->hw.flags & IEEE80211_HW_CHANCTX_STA_CSA)
+ local->ext_capa[0] |= WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING;
+
local->hw.wiphy->max_num_csa_counters = IEEE80211_MAX_CSA_COUNTERS_NUM;
result = wiphy_register(local->hw.wiphy);