From: Ajay Singh Date: Sun, 2 Dec 2018 18:03:34 +0000 (+0000) Subject: staging: wilc1000: avoid extra buffer copy while connect cfg ops X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a343cf5d329e54c6b76a83ec6e98c67ec6eb34bf;p=openwrt%2Fstaging%2Fblogic.git staging: wilc1000: avoid extra buffer copy while connect cfg ops Refactor the code to avoid the use of an extra buffer to store the connection related parameter. No need to call cfg80211_disconnected in case of failure to send the wid command to firmware, an error status is directly returned in cfg80211 connect callback. Signed-off-by: Ajay Singh Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index 783c99b79b6f..f50728c68e75 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -25,20 +25,6 @@ struct scan_attr { struct hidden_network hidden_network; }; -struct connect_attr { - u8 *bssid; - u8 *ssid; - size_t ssid_len; - u8 *ies; - size_t ies_len; - u8 security; - wilc_connect_result result; - void *arg; - enum authtype auth_type; - u8 ch; - void *params; -}; - struct rcvd_async_info { u8 *buffer; u32 len; @@ -99,7 +85,6 @@ struct wilc_gtk_key { union message_body { struct scan_attr scan_info; - struct connect_attr con_info; struct rcvd_net_info net_info; struct rcvd_async_info async_info; struct set_multicast multicast_info; @@ -362,54 +347,15 @@ error: kfree(msg); } -static int wilc_send_connect_wid(struct wilc_vif *vif, - struct connect_attr *conn_attr) +static int wilc_send_connect_wid(struct wilc_vif *vif) { int result = 0; struct wid wid_list[8]; u32 wid_cnt = 0, dummyval = 0; u8 *cur_byte = NULL; - struct join_bss_param *bss_param = conn_attr->params; struct host_if_drv *hif_drv = vif->hif_drv; - - if (conn_attr->bssid) { - hif_drv->usr_conn_req.bssid = kmemdup(conn_attr->bssid, 6, - GFP_KERNEL); - if (!hif_drv->usr_conn_req.bssid) { - result = -ENOMEM; - goto error; - } - } - - hif_drv->usr_conn_req.ssid_len = conn_attr->ssid_len; - if (conn_attr->ssid) { - hif_drv->usr_conn_req.ssid = kmalloc(conn_attr->ssid_len + 1, - GFP_KERNEL); - if (!hif_drv->usr_conn_req.ssid) { - result = -ENOMEM; - goto error; - } - memcpy(hif_drv->usr_conn_req.ssid, - conn_attr->ssid, - conn_attr->ssid_len); - hif_drv->usr_conn_req.ssid[conn_attr->ssid_len] = '\0'; - } - - hif_drv->usr_conn_req.ies_len = conn_attr->ies_len; - if (conn_attr->ies) { - hif_drv->usr_conn_req.ies = kmemdup(conn_attr->ies, - conn_attr->ies_len, - GFP_KERNEL); - if (!hif_drv->usr_conn_req.ies) { - result = -ENOMEM; - goto error; - } - } - - hif_drv->usr_conn_req.security = conn_attr->security; - hif_drv->usr_conn_req.auth_type = conn_attr->auth_type; - hif_drv->usr_conn_req.conn_result = conn_attr->result; - hif_drv->usr_conn_req.arg = conn_attr->arg; + struct user_conn_req *conn_attr = &hif_drv->usr_conn_req; + struct join_bss_param *bss_param = hif_drv->usr_conn_req.param; wid_list[wid_cnt].id = WID_SUCCESS_FRAME_COUNT; wid_list[wid_cnt].type = WID_INT; @@ -431,20 +377,20 @@ static int wilc_send_connect_wid(struct wilc_vif *vif, wid_list[wid_cnt].id = WID_INFO_ELEMENT_ASSOCIATE; wid_list[wid_cnt].type = WID_BIN_DATA; - wid_list[wid_cnt].val = hif_drv->usr_conn_req.ies; - wid_list[wid_cnt].size = hif_drv->usr_conn_req.ies_len; + wid_list[wid_cnt].val = conn_attr->ies; + wid_list[wid_cnt].size = conn_attr->ies_len; wid_cnt++; wid_list[wid_cnt].id = WID_11I_MODE; wid_list[wid_cnt].type = WID_CHAR; wid_list[wid_cnt].size = sizeof(char); - wid_list[wid_cnt].val = (s8 *)&hif_drv->usr_conn_req.security; + wid_list[wid_cnt].val = (s8 *)&conn_attr->security; wid_cnt++; wid_list[wid_cnt].id = WID_AUTH_TYPE; wid_list[wid_cnt].type = WID_CHAR; wid_list[wid_cnt].size = sizeof(char); - wid_list[wid_cnt].val = (s8 *)&hif_drv->usr_conn_req.auth_type; + wid_list[wid_cnt].val = (s8 *)&conn_attr->auth_type; wid_cnt++; wid_list[wid_cnt].id = WID_JOIN_REQ_EXTENDED; @@ -494,7 +440,7 @@ static int wilc_send_connect_wid(struct wilc_vif *vif, *(cur_byte++) = bss_param->uapsd_cap; *(cur_byte++) = bss_param->ht_capable; - hif_drv->usr_conn_req.ht_capable = bss_param->ht_capable; + conn_attr->ht_capable = bss_param->ht_capable; *(cur_byte++) = bss_param->rsn_found; *(cur_byte++) = bss_param->rsn_grp_policy; @@ -547,45 +493,16 @@ static int wilc_send_connect_wid(struct wilc_vif *vif, wilc_get_vif_idx(vif)); if (result) { netdev_err(vif->ndev, "failed to send config packet\n"); - result = -EFAULT; + kfree(cur_byte); goto error; } else { hif_drv->hif_state = HOST_IF_WAITING_CONN_RESP; } -error: - if (result) { - struct connect_info conn_info; - - del_timer(&hif_drv->connect_timer); - - memset(&conn_info, 0, sizeof(struct connect_info)); - - if (conn_attr->result) { - if (conn_attr->bssid) - memcpy(conn_info.bssid, conn_attr->bssid, 6); - - if (conn_attr->ies) { - conn_info.req_ies_len = conn_attr->ies_len; - conn_info.req_ies = kmalloc(conn_attr->ies_len, - GFP_KERNEL); - memcpy(conn_info.req_ies, - conn_attr->ies, - conn_attr->ies_len); - } - - conn_attr->result(CONN_DISCONN_EVENT_CONN_RESP, - &conn_info, - WILC_MAC_STATUS_DISCONNECTED, - NULL, conn_attr->arg); - hif_drv->hif_state = HOST_IF_IDLE; - kfree(conn_info.req_ies); - conn_info.req_ies = NULL; + kfree(cur_byte); + return 0; - } else { - netdev_err(vif->ndev, "Connect callback is NULL\n"); - } - } +error: kfree(conn_attr->bssid); conn_attr->bssid = NULL; @@ -596,9 +513,6 @@ error: kfree(conn_attr->ies); conn_attr->ies = NULL; - kfree(conn_attr); - kfree(cur_byte); - return result; } @@ -1909,7 +1823,7 @@ int wilc_set_join_req(struct wilc_vif *vif, u8 *bssid, const u8 *ssid, { int result; struct host_if_drv *hif_drv = vif->hif_drv; - struct connect_attr *con_info; + struct user_conn_req *con_info = &hif_drv->usr_conn_req; if (!hif_drv || !connect_result) { netdev_err(vif->ndev, @@ -1928,23 +1842,17 @@ int wilc_set_join_req(struct wilc_vif *vif, u8 *bssid, const u8 *ssid, return -EBUSY; } - con_info = kzalloc(sizeof(*con_info), GFP_KERNEL); - if (!con_info) - return -ENOMEM; - con_info->security = security; con_info->auth_type = auth_type; con_info->ch = channel; - con_info->result = connect_result; + con_info->conn_result = connect_result; con_info->arg = user_arg; - con_info->params = join_params; + con_info->param = join_params; if (bssid) { con_info->bssid = kmemdup(bssid, 6, GFP_KERNEL); - if (!con_info->bssid) { - result = -ENOMEM; - goto free_con_info; - } + if (!con_info->bssid) + return -ENOMEM; } if (ssid) { @@ -1984,9 +1892,6 @@ free_ssid: free_bssid: kfree(con_info->bssid); -free_con_info: - kfree(con_info); - return result; } diff --git a/drivers/staging/wilc1000/host_interface.h b/drivers/staging/wilc1000/host_interface.h index ac4bdfe24916..9b396a79b144 100644 --- a/drivers/staging/wilc1000/host_interface.h +++ b/drivers/staging/wilc1000/host_interface.h @@ -191,7 +191,9 @@ struct user_conn_req { size_t ies_len; wilc_connect_result conn_result; bool ht_capable; + u8 ch; void *arg; + void *param; }; struct remain_ch { diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index 7cc985e9f706..08d4461d3f01 100644 --- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -719,6 +719,8 @@ static int connect(struct wiphy *wiphy, struct net_device *dev, netdev_err(dev, "wilc_set_join_req(): Error\n"); ret = -ENOENT; + if (!wfi_drv->p2p_connect) + wlan_channel = INVALID_CHANNEL; wilc_wlan_set_bssid(dev, null_bssid, WILC_STATION_MODE); goto out_error; }