mwifiex: fix association issue with AP configured in hidden SSID mode

Firmware expects 'max_ssid_length' field in
'struct mwifiex_ie_types_wildcard_ssid_params' to be '0' for
performing SSID specific scan. Currently driver updates it with
an actual SSID length. Hence UUT is not able to find the AP
configured in hidden SSID mode in scan results and association
fails.

max_ssid_length is filled with '0' to fix the issue.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/net/wireless/mwifiex/scan.c b/drivers/net/wireless/mwifiex/scan.c
index 8a3f9598ad33..8d3ab378662b 100644
--- a/drivers/net/wireless/mwifiex/scan.c
+++ b/drivers/net/wireless/mwifiex/scan.c
@@ -819,8 +819,10 @@ mwifiex_scan_setup_scan_config(struct mwifiex_private *priv,
                         wildcard_ssid_tlv->header.len = cpu_to_le16(
                                 (u16) (ssid_len + sizeof(wildcard_ssid_tlv->
                                                          max_ssid_length)));
-                        wildcard_ssid_tlv->max_ssid_length =
-                                user_scan_in->ssid_list[ssid_idx].max_len;
+
+                        /* max_ssid_length = 0 tells firmware to perform
+                           specific scan for the SSID filled */
+                        wildcard_ssid_tlv->max_ssid_length = 0;
 
                         memcpy(wildcard_ssid_tlv->ssid,
                                user_scan_in->ssid_list[ssid_idx].ssid,