Commit a343cf5d authored by Ajay Singh's avatar Ajay Singh Committed by Greg Kroah-Hartman

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: default avatarAjay Singh <ajay.kathat@microchip.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e5596812
......@@ -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 @@ static void handle_scan(struct work_struct *work)
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 @@ static int wilc_send_connect_wid(struct wilc_vif *vif,
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 @@ int wilc_set_join_req(struct wilc_vif *vif, u8 *bssid, const u8 *ssid,
free_bssid:
kfree(con_info->bssid);
free_con_info:
kfree(con_info);
return result;
}
......
......@@ -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 {
......
......@@ -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;
}
......
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