From 8f1a0ac1eba70b811dfcf9034f6d9c977e21cb83 Mon Sep 17 00:00:00 2001 From: Ajay Singh Date: Sun, 2 Dec 2018 18:03:38 +0000 Subject: [PATCH] staging: wilc1000: handle scan operation callback from cfg80211 context Refactor code to handle scan operation callback from cfg80211 context. No need to maintain 'scan_attr' struct as the wid command is directly sent to firmware from cfg80211 context. Signed-off-by: Ajay Singh Signed-off-by: Greg Kroah-Hartman --- drivers/staging/wilc1000/host_interface.c | 143 +++--------------- .../staging/wilc1000/wilc_wfi_cfgoperations.c | 13 +- 2 files changed, 33 insertions(+), 123 deletions(-) diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index f50728c68e75..b8603f2f777b 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -13,18 +13,6 @@ #define REAL_JOIN_REQ 0 -struct scan_attr { - u8 src; - u8 type; - u8 *ch_freq_list; - u8 ch_list_len; - u8 *ies; - size_t ies_len; - wilc_scan_result result; - void *arg; - struct hidden_network hidden_network; -}; - struct rcvd_async_info { u8 *buffer; u32 len; @@ -84,7 +72,6 @@ struct wilc_gtk_key { } __packed; union message_body { - struct scan_attr scan_info; struct rcvd_net_info net_info; struct rcvd_async_info async_info; struct set_multicast multicast_info; @@ -230,11 +217,11 @@ static int handle_scan_done(struct wilc_vif *vif, enum scan_event evt) return result; } -static void handle_scan(struct work_struct *work) +int wilc_scan(struct wilc_vif *vif, u8 scan_source, u8 scan_type, + u8 *ch_freq_list, u8 ch_list_len, const u8 *ies, + size_t ies_len, wilc_scan_result scan_result, void *user_arg, + struct hidden_network *hidden_net) { - struct host_if_msg *msg = container_of(work, struct host_if_msg, work); - struct wilc_vif *vif = msg->vif; - struct scan_attr *scan_info = &msg->body.scan_info; int result = 0; struct wid wid_list[5]; u32 index = 0; @@ -243,10 +230,6 @@ static void handle_scan(struct work_struct *work) u8 valuesize = 0; u8 *hdn_ntwk_wid_val = NULL; struct host_if_drv *hif_drv = vif->hif_drv; - struct hidden_network *hidden_net = &scan_info->hidden_network; - - hif_drv->usr_scan_req.scan_result = scan_info->result; - hif_drv->usr_scan_req.arg = scan_info->arg; if (hif_drv->hif_state >= HOST_IF_SCANNING && hif_drv->hif_state < HOST_IF_CONNECTED) { @@ -288,63 +271,55 @@ static void handle_scan(struct work_struct *work) wid_list[index].id = WID_INFO_ELEMENT_PROBE; wid_list[index].type = WID_BIN_DATA; - wid_list[index].val = scan_info->ies; - wid_list[index].size = scan_info->ies_len; + wid_list[index].val = (s8 *)ies; + wid_list[index].size = ies_len; index++; wid_list[index].id = WID_SCAN_TYPE; wid_list[index].type = WID_CHAR; wid_list[index].size = sizeof(char); - wid_list[index].val = (s8 *)&scan_info->type; + wid_list[index].val = (s8 *)&scan_type; index++; wid_list[index].id = WID_SCAN_CHANNEL_LIST; wid_list[index].type = WID_BIN_DATA; - if (scan_info->ch_freq_list && - scan_info->ch_list_len > 0) { - int i; - - for (i = 0; i < scan_info->ch_list_len; i++) { - if (scan_info->ch_freq_list[i] > 0) - scan_info->ch_freq_list[i] -= 1; + if (ch_freq_list && ch_list_len > 0) { + for (i = 0; i < ch_list_len; i++) { + if (ch_freq_list[i] > 0) + ch_freq_list[i] -= 1; } } - wid_list[index].val = scan_info->ch_freq_list; - wid_list[index].size = scan_info->ch_list_len; + wid_list[index].val = ch_freq_list; + wid_list[index].size = ch_list_len; index++; wid_list[index].id = WID_START_SCAN_REQ; wid_list[index].type = WID_CHAR; wid_list[index].size = sizeof(char); - wid_list[index].val = (s8 *)&scan_info->src; + wid_list[index].val = (s8 *)&scan_source; index++; result = wilc_send_config_pkt(vif, WILC_SET_CFG, wid_list, index, wilc_get_vif_idx(vif)); - - if (result) - netdev_err(vif->ndev, "Failed to send scan parameters\n"); - -error: if (result) { - del_timer(&hif_drv->scan_timer); - handle_scan_done(vif, SCAN_EVENT_ABORTED); + netdev_err(vif->ndev, "Failed to send scan parameters\n"); + goto error; } - kfree(scan_info->ch_freq_list); - scan_info->ch_freq_list = NULL; - - kfree(scan_info->ies); - scan_info->ies = NULL; - kfree(scan_info->hidden_network.net_info); - scan_info->hidden_network.net_info = NULL; + hif_drv->usr_scan_req.scan_result = scan_result; + hif_drv->usr_scan_req.arg = user_arg; + hif_drv->scan_timer_vif = vif; + mod_timer(&hif_drv->scan_timer, + jiffies + msecs_to_jiffies(HOST_IF_SCAN_TIMEOUT)); +error: + kfree(hidden_net->net_info); kfree(hdn_ntwk_wid_val); - kfree(msg); + return result; } static int wilc_send_connect_wid(struct wilc_vif *vif) @@ -2034,76 +2009,6 @@ int wilc_get_stats_async(struct wilc_vif *vif, struct rf_info *stats) return result; } -int wilc_scan(struct wilc_vif *vif, u8 scan_source, u8 scan_type, - u8 *ch_freq_list, u8 ch_list_len, const u8 *ies, - size_t ies_len, wilc_scan_result scan_result, void *user_arg, - struct hidden_network *hidden_network) -{ - int result; - struct host_if_msg *msg; - struct scan_attr *scan_info; - struct host_if_drv *hif_drv = vif->hif_drv; - - if (!hif_drv || !scan_result) { - netdev_err(vif->ndev, "hif_drv or scan_result = NULL\n"); - return -EFAULT; - } - - msg = wilc_alloc_work(vif, handle_scan, false); - if (IS_ERR(msg)) - return PTR_ERR(msg); - - scan_info = &msg->body.scan_info; - - if (hidden_network) { - scan_info->hidden_network.net_info = hidden_network->net_info; - scan_info->hidden_network.n_ssids = hidden_network->n_ssids; - } - - scan_info->src = scan_source; - scan_info->type = scan_type; - scan_info->result = scan_result; - scan_info->arg = user_arg; - - scan_info->ch_list_len = ch_list_len; - scan_info->ch_freq_list = kmemdup(ch_freq_list, - ch_list_len, - GFP_KERNEL); - if (!scan_info->ch_freq_list) { - result = -ENOMEM; - goto free_msg; - } - - scan_info->ies_len = ies_len; - scan_info->ies = kmemdup(ies, ies_len, GFP_KERNEL); - if (!scan_info->ies) { - result = -ENOMEM; - goto free_freq_list; - } - - result = wilc_enqueue_work(msg); - if (result) { - netdev_err(vif->ndev, "%s: enqueue work failed\n", __func__); - goto free_ies; - } - - hif_drv->scan_timer_vif = vif; - mod_timer(&hif_drv->scan_timer, - jiffies + msecs_to_jiffies(HOST_IF_SCAN_TIMEOUT)); - - return 0; - -free_ies: - kfree(scan_info->ies); - -free_freq_list: - kfree(scan_info->ch_freq_list); - -free_msg: - kfree(msg); - return result; -} - int wilc_hif_set_cfg(struct wilc_vif *vif, struct cfg_param_attr *param) { struct wid wid_list[4]; diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index 08d4461d3f01..ac47dda510e0 100644 --- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -547,8 +547,10 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) if (request->n_ssids >= 1) { if (wilc_wfi_cfg_alloc_fill_ssid(request, - &hidden_ntwk)) - return -ENOMEM; + &hidden_ntwk)) { + ret = -ENOMEM; + goto out; + } ret = wilc_scan(vif, WILC_FW_USER_SCAN, WILC_FW_ACTIVE_SCAN, scan_ch_list, @@ -568,8 +570,11 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) netdev_err(priv->dev, "Requested scanned channels over\n"); } - if (ret != 0) - ret = -EBUSY; +out: + if (ret) { + priv->scan_req = NULL; + priv->cfg_scanning = false; + } return ret; } -- 2.39.5