mwifiex: fix bug in wildcard scan handling

Currently if valid SSID list is provided in scan request, driver
performs specific SSID scan otherwise wildcard scan is chosen.

When wpa_supplicant provides valid SSID list followed by
zero-length SSID for wildcard scan, only specific SSID scan is
performed by driver. Actually driver is expected to do both type
of scanning in this case. The patch fixes this issue.

Also, use SSID list pointer provided by stack directly, instead
of copying SSID's to local structure.

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, 3 insertions, 7 deletions

diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index c82620094a53..fc4ffee6c6b9 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -852,11 +852,6 @@ struct mwifiex_user_scan_chan {
 	u32 scan_time;
 } __packed;
 
-struct mwifiex_user_scan_ssid {
-	u8 ssid[IEEE80211_MAX_SSID_LEN + 1];
-	u8 max_len;
-} __packed;
-
 struct mwifiex_user_scan_cfg {
 	/*
 	 *  BSS mode to be sent in the firmware command
@@ -867,8 +862,9 @@ struct mwifiex_user_scan_cfg {
 	u8 reserved;
 	/* BSSID filter sent in the firmware command to limit the results */
 	u8 specific_bssid[ETH_ALEN];
-	/* SSID filter list used in the to limit the scan results */
-	struct mwifiex_user_scan_ssid ssid_list[MWIFIEX_MAX_SSID_LIST_LENGTH];
+	/* SSID filter list used in the firmware to limit the scan results */
+	struct cfg80211_ssid *ssid_list;
+	u8 num_ssids;
 	/* Variable number (fixed maximum) of channels to scan up */
 	struct mwifiex_user_scan_chan chan_list[MWIFIEX_USER_SCAN_CHAN_MAX];
 } __packed;