[PATCH 3/6] iwlwifi: Remove unused iwl_mvm_ftm_*_add_pasn_sta functions

[linux@treblig.org]

From: "Dr. David Alan Gilbert" <linux@treblig.org>

iwl_mvm_ftm_respoder_add_pasn_sta() and
iwl_mvm_ftm_resp_remove_pasn_sta() were added in 2020 by
commit be82ecd3a5c8 ("iwlwifi: mvm: add an option to add PASN station")
but have remained unused.

Remove them.

After that removal iwl_mvm_add_pasn_sta() is now unused.
Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
---
 .../intel/iwlwifi/mvm/ftm-responder.c         | 86 -------------------
 drivers/net/wireless/intel/iwlwifi/mvm/mvm.h  |  6 --
 drivers/net/wireless/intel/iwlwifi/mvm/sta.c  | 61 -------------
 drivers/net/wireless/intel/iwlwifi/mvm/sta.h  |  4 -
 4 files changed, 157 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-responder.c b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-responder.c
index e6e468e81ab3..83f6e508a094 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ftm-responder.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ftm-responder.c
@@ -324,92 +324,6 @@ static void iwl_mvm_resp_del_pasn_sta(struct iwl_mvm *mvm,
 	kfree(sta);
 }
 
-int iwl_mvm_ftm_respoder_add_pasn_sta(struct iwl_mvm *mvm,
-				      struct ieee80211_vif *vif,
-				      u8 *addr, u32 cipher, u8 *tk, u32 tk_len,
-				      u8 *hltk, u32 hltk_len)
-{
-	int ret;
-	struct iwl_mvm_pasn_sta *sta = NULL;
-	struct iwl_mvm_pasn_hltk_data hltk_data = {
-		.addr = addr,
-		.hltk = hltk,
-	};
-	struct iwl_mvm_pasn_hltk_data *hltk_data_ptr = NULL;
-
-	u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
-					   WIDE_ID(LOCATION_GROUP, TOF_RESPONDER_DYN_CONFIG_CMD),
-					   2);
-
-	lockdep_assert_held(&mvm->mutex);
-
-	if (cmd_ver < 3) {
-		IWL_ERR(mvm, "Adding PASN station not supported by FW\n");
-		return -EOPNOTSUPP;
-	}
-
-	if ((!hltk || !hltk_len) && (!tk || !tk_len)) {
-		IWL_ERR(mvm, "TK and HLTK not set\n");
-		return -EINVAL;
-	}
-
-	if (hltk && hltk_len) {
-		if (!fw_has_capa(&mvm->fw->ucode_capa,
-				 IWL_UCODE_TLV_CAPA_SECURE_LTF_SUPPORT)) {
-			IWL_ERR(mvm, "No support for secure LTF measurement\n");
-			return -EINVAL;
-		}
-
-		hltk_data.cipher = iwl_mvm_cipher_to_location_cipher(cipher);
-		if (hltk_data.cipher == IWL_LOCATION_CIPHER_INVALID) {
-			IWL_ERR(mvm, "invalid cipher: %u\n", cipher);
-			return -EINVAL;
-		}
-
-		hltk_data_ptr = &hltk_data;
-	}
-
-	if (tk && tk_len) {
-		sta = kzalloc(sizeof(*sta) + tk_len, GFP_KERNEL);
-		if (!sta)
-			return -ENOBUFS;
-
-		ret = iwl_mvm_add_pasn_sta(mvm, vif, &sta->int_sta, addr,
-					   cipher, tk, tk_len, &sta->keyconf);
-		if (ret) {
-			kfree(sta);
-			return ret;
-		}
-
-		memcpy(sta->addr, addr, ETH_ALEN);
-		list_add_tail(&sta->list, &mvm->resp_pasn_list);
-	}
-
-	ret = iwl_mvm_ftm_responder_dyn_cfg_v3(mvm, vif, NULL, hltk_data_ptr);
-	if (ret && sta)
-		iwl_mvm_resp_del_pasn_sta(mvm, vif, sta);
-
-	return ret;
-}
-
-int iwl_mvm_ftm_resp_remove_pasn_sta(struct iwl_mvm *mvm,
-				     struct ieee80211_vif *vif, u8 *addr)
-{
-	struct iwl_mvm_pasn_sta *sta, *prev;
-
-	lockdep_assert_held(&mvm->mutex);
-
-	list_for_each_entry_safe(sta, prev, &mvm->resp_pasn_list, list) {
-		if (!memcmp(sta->addr, addr, ETH_ALEN)) {
-			iwl_mvm_resp_del_pasn_sta(mvm, vif, sta);
-			return 0;
-		}
-	}
-
-	IWL_ERR(mvm, "FTM: PASN station %pM not found\n", addr);
-	return -EINVAL;
-}
-
 int iwl_mvm_ftm_start_responder(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 				struct ieee80211_bss_conf *bss_conf)
 {
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index 79771c9d4557..e8a82dc49892 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -2516,12 +2516,6 @@ void iwl_mvm_ftm_restart_responder(struct iwl_mvm *mvm,
 				   struct ieee80211_bss_conf *bss_conf);
 void iwl_mvm_ftm_responder_stats(struct iwl_mvm *mvm,
 				 struct iwl_rx_cmd_buffer *rxb);
-int iwl_mvm_ftm_resp_remove_pasn_sta(struct iwl_mvm *mvm,
-				     struct ieee80211_vif *vif, u8 *addr);
-int iwl_mvm_ftm_respoder_add_pasn_sta(struct iwl_mvm *mvm,
-				      struct ieee80211_vif *vif,
-				      u8 *addr, u32 cipher, u8 *tk, u32 tk_len,
-				      u8 *hltk, u32 hltk_len);
 void iwl_mvm_ftm_responder_clear(struct iwl_mvm *mvm,
 				 struct ieee80211_vif *vif);
 
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index cd74c181c260..1c65e285bc81 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -4317,67 +4317,6 @@ u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data)
 	return ieee80211_sn_sub(sn, tid_data->next_reclaimed);
 }
 
-int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
-			 struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher,
-			 u8 *key, u32 key_len,
-			 struct ieee80211_key_conf *keyconf)
-{
-	int ret;
-	u16 queue;
-	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
-	unsigned int wdg_timeout =
-		iwl_mvm_get_wd_timeout(mvm, vif);
-	bool mld = iwl_mvm_has_mld_api(mvm->fw);
-	u32 type = IWL_STA_LINK;
-
-	if (mld)
-		type = STATION_TYPE_PEER;
-
-	ret = iwl_mvm_allocate_int_sta(mvm, sta, 0,
-				       NL80211_IFTYPE_UNSPECIFIED, type);
-	if (ret)
-		return ret;
-
-	if (mld)
-		ret = iwl_mvm_mld_add_int_sta_with_queue(mvm, sta, addr,
-							 mvmvif->deflink.fw_link_id,
-							 &queue,
-							 IWL_MAX_TID_COUNT,
-							 &wdg_timeout);
-	else
-		ret = iwl_mvm_add_int_sta_with_queue(mvm, mvmvif->id,
-						     mvmvif->color, addr, sta,
-						     &queue,
-						     IWL_MVM_TX_FIFO_BE);
-	if (ret)
-		goto out;
-
-	keyconf->cipher = cipher;
-	memcpy(keyconf->key, key, key_len);
-	keyconf->keylen = key_len;
-	keyconf->flags = IEEE80211_KEY_FLAG_PAIRWISE;
-
-	if (mld) {
-		/* The MFP flag is set according to the station mfp field. Since
-		 * we don't have a station, set it manually.
-		 */
-		u32 key_flags =
-			iwl_mvm_get_sec_flags(mvm, vif, NULL, keyconf) |
-			IWL_SEC_KEY_FLAG_MFP;
-		u32 sta_mask = BIT(sta->sta_id);
-
-		ret = iwl_mvm_mld_send_key(mvm, sta_mask, key_flags, keyconf);
-	} else {
-		ret = iwl_mvm_send_sta_key(mvm, sta->sta_id, keyconf, false,
-					   0, NULL, 0, 0, true);
-	}
-
-out:
-	if (ret)
-		iwl_mvm_dealloc_int_sta(mvm, sta);
-	return ret;
-}
-
 void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm,
 				   struct ieee80211_vif *vif,
 				   u32 id)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
index 4a3799ae7c18..4abc3ad0e6eb 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
@@ -597,10 +597,6 @@ void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm,
 void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 int iwl_mvm_sta_ensure_queue(struct iwl_mvm *mvm, struct ieee80211_txq *txq);
 void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk);
-int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
-			 struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher,
-			 u8 *key, u32 key_len,
-			 struct ieee80211_key_conf *key_conf_out);
 void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm,
 				   struct ieee80211_vif *vif,
 				   u32 id);
-- 
2.47.1