From c7d42480d799ab3242103427f2619b419d885f5e Mon Sep 17 00:00:00 2001 From: Luciano Coelho Date: Thu, 7 May 2015 16:00:26 +0300 Subject: [PATCH] iwlwifi: mvm: combine regular and sched scan stop functions The regular and scheduled scan functions are very similar, so they can be combined into one. Signed-off-by: Luciano Coelho Reviewed-by: Johannes Berg Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/d3.c | 2 +- drivers/net/wireless/iwlwifi/mvm/mac80211.c | 7 +-- drivers/net/wireless/iwlwifi/mvm/mvm.h | 9 ++-- drivers/net/wireless/iwlwifi/mvm/scan.c | 50 +++++++-------------- 4 files changed, 27 insertions(+), 41 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c index ceffc78ff15b..423c519f06bc 100644 --- a/drivers/net/wireless/iwlwifi/mvm/d3.c +++ b/drivers/net/wireless/iwlwifi/mvm/d3.c @@ -761,7 +761,7 @@ void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif) static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm) { - iwl_mvm_reg_scan_stop(mvm); + iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); iwl_trans_stop_device(mvm->trans); diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index cea236b6c2ed..d3af88bcff80 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -510,6 +510,7 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; + BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK); BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) || IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK)); @@ -2361,7 +2362,7 @@ static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, mutex_lock(&mvm->mutex); if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) - iwl_mvm_sched_scan_stop(mvm, true); + iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); switch (vif->type) { case NL80211_IFTYPE_STATION: @@ -2417,7 +2418,7 @@ static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, */ if ((mvm->scan_status & IWL_MVM_SCAN_REGULAR) || (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) - iwl_mvm_reg_scan_stop(mvm); + iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); mutex_unlock(&mvm->mutex); } @@ -2775,7 +2776,7 @@ static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, return 0; } - ret = iwl_mvm_sched_scan_stop(mvm, false); + ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false); mutex_unlock(&mvm->mutex); iwl_mvm_wait_for_async_handlers(mvm); diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h index f22d30988c96..0173ad15ed46 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h @@ -447,6 +447,8 @@ iwl_mvm_vif_from_mac80211(struct ieee80211_vif *vif) extern const u8 tid_to_mac80211_ac[]; +#define IWL_MVM_SCAN_STOPPING_SHIFT 8 + enum iwl_scan_status { IWL_MVM_SCAN_REGULAR = BIT(0), IWL_MVM_SCAN_SCHED = BIT(1), @@ -463,8 +465,8 @@ enum iwl_scan_status { IWL_MVM_SCAN_NETDETECT_MASK = IWL_MVM_SCAN_NETDETECT | IWL_MVM_SCAN_STOPPING_NETDETECT, - IWL_MVM_SCAN_STOPPING_MASK = 0xff00, - IWL_MVM_SCAN_MASK = 0x00ff, + IWL_MVM_SCAN_STOPPING_MASK = 0xff << IWL_MVM_SCAN_STOPPING_SHIFT, + IWL_MVM_SCAN_MASK = 0xff, }; /** @@ -1121,7 +1123,7 @@ int iwl_mvm_reg_scan_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct cfg80211_scan_request *req, struct ieee80211_scan_ies *ies); int iwl_mvm_scan_size(struct iwl_mvm *mvm); -int iwl_mvm_reg_scan_stop(struct iwl_mvm *mvm); +int iwl_mvm_scan_stop(struct iwl_mvm *mvm, int type, bool notify); int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm); void iwl_mvm_report_scan_aborted(struct iwl_mvm *mvm); @@ -1137,7 +1139,6 @@ int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm, struct cfg80211_sched_scan_request *req, struct ieee80211_scan_ies *ies, int type); -int iwl_mvm_sched_scan_stop(struct iwl_mvm *mvm, bool notify); int iwl_mvm_rx_scan_match_found(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, struct iwl_device_cmd *cmd); diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c index 49bcf7d56d49..d8de906d3ff2 100644 --- a/drivers/net/wireless/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/iwlwifi/mvm/scan.c @@ -1139,11 +1139,11 @@ static int iwl_mvm_check_running_scans(struct iwl_mvm *mvm, int type) case IWL_MVM_SCAN_REGULAR: if (mvm->scan_status & IWL_MVM_SCAN_REGULAR_MASK) return -EBUSY; - return iwl_mvm_sched_scan_stop(mvm, true); + return iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); case IWL_MVM_SCAN_SCHED: if (mvm->scan_status & IWL_MVM_SCAN_SCHED_MASK) return -EBUSY; - return iwl_mvm_reg_scan_stop(mvm); + iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); case IWL_MVM_SCAN_NETDETECT: /* No need to stop anything for net-detect since the * firmware is restarted anyway. This way, any sched @@ -1524,11 +1524,11 @@ void iwl_mvm_report_scan_aborted(struct iwl_mvm *mvm) } } -int iwl_mvm_reg_scan_stop(struct iwl_mvm *mvm) +int iwl_mvm_scan_stop(struct iwl_mvm *mvm, int type, bool notify) { int ret; - if (!(mvm->scan_status & IWL_MVM_SCAN_REGULAR)) + if (!(mvm->scan_status & type)) return 0; if (iwl_mvm_is_radio_killed(mvm)) { @@ -1536,43 +1536,27 @@ int iwl_mvm_reg_scan_stop(struct iwl_mvm *mvm) goto out; } - ret = iwl_mvm_scan_stop_wait(mvm, IWL_MVM_SCAN_REGULAR); + ret = iwl_mvm_scan_stop_wait(mvm, type); if (!ret) - mvm->scan_status |= IWL_MVM_SCAN_STOPPING_REGULAR; + mvm->scan_status |= type << IWL_MVM_SCAN_STOPPING_SHIFT; out: /* Clear the scan status so the next scan requests will * succeed and mark the scan as stopping, so that the Rx * handler doesn't do anything, as the scan was stopped from - * above. Since the rx handler won't do anything now, we have - * to release the scan reference here. + * above. */ - iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); + mvm->scan_status &= ~type; - mvm->scan_status &= ~IWL_MVM_SCAN_REGULAR; - ieee80211_scan_completed(mvm->hw, true); - - return ret; -} - -int iwl_mvm_sched_scan_stop(struct iwl_mvm *mvm, bool notify) -{ - int ret; - - if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) - return 0; - - if (iwl_mvm_is_radio_killed(mvm)) { - ret = 0; - goto out; + if (type == IWL_MVM_SCAN_REGULAR) { + /* Since the rx handler won't do anything now, we have + * to release the scan reference here. + */ + iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); + if (notify) + ieee80211_scan_completed(mvm->hw, true); + } else if (notify) { + ieee80211_sched_scan_stopped(mvm->hw); } - ret = iwl_mvm_scan_stop_wait(mvm, IWL_MVM_SCAN_SCHED); - if (!ret) - mvm->scan_status |= IWL_MVM_SCAN_STOPPING_SCHED; -out: - mvm->scan_status &= ~IWL_MVM_SCAN_SCHED; - if (notify) - ieee80211_sched_scan_stopped(mvm->hw); - return ret; }