diff options
| author | Emmanuel Grumbach | 2014-01-14 07:30:32 +0100 |
|---|---|---|
| committer | Emmanuel Grumbach | 2014-02-03 21:23:33 +0100 |
| commit | f327b04c4240cc6dbce698bea8f8e14db7fc3a8a (patch) | |
| tree | 40bf61d0c1d6221c92ff732243dfd5fd1690e140 /drivers/net/wireless/iwlwifi/mvm/mvm.h | |
| parent | iwlwifi: remove obsolete TODO (diff) | |
| download | kernel-qcow2-linux-f327b04c4240cc6dbce698bea8f8e14db7fc3a8a.tar.gz kernel-qcow2-linux-f327b04c4240cc6dbce698bea8f8e14db7fc3a8a.tar.xz kernel-qcow2-linux-f327b04c4240cc6dbce698bea8f8e14db7fc3a8a.zip | |
iwlwifi: mvm: provide helper to fetch the iwl_mvm_sta from sta_id
We somtimes need to fetch the iwl_mvm_sta structure from a
station index - provide a helper to do that.
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/mvm.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/mvm.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h index bf13c462a1f4..02e4bdc80de2 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h @@ -595,6 +595,24 @@ static inline bool iwl_mvm_is_radio_killed(struct iwl_mvm *mvm) test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); } +static inline struct iwl_mvm_sta * +iwl_mvm_sta_from_staid_protected(struct iwl_mvm *mvm, u8 sta_id) +{ + struct ieee80211_sta *sta; + + if (sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id)) + return NULL; + + sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], + lockdep_is_held(&mvm->mutex)); + + /* This can happen if the station has been removed right now */ + if (IS_ERR_OR_NULL(sta)) + return NULL; + + return iwl_mvm_sta_from_mac80211(sta); +} + extern const u8 iwl_mvm_ac_to_tx_fifo[]; struct iwl_rate_info { |