nl80211/cfg80211: add max_sched_scan_ie_len in the hw description

Some chips may support different lengths of user-supplied IEs with a
single scheduled scan command than with a single normal scan command.

To support this, this patch creates a separate hardware description
element that describes the maximum size of user-supplied information
element data supported in scheduled scans.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 935b58b..44a3fc2 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -700,6 +700,8 @@
 		   dev->wiphy.max_sched_scan_ssids);
 	NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
 		    dev->wiphy.max_scan_ie_len);
+	NLA_PUT_U16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
+		    dev->wiphy.max_sched_scan_ie_len);
 
 	if (dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN)
 		NLA_PUT_FLAG(msg, NL80211_ATTR_SUPPORT_IBSS_RSN);
@@ -3521,7 +3523,7 @@
 	else
 		ie_len = 0;
 
-	if (ie_len > wiphy->max_scan_ie_len)
+	if (ie_len > wiphy->max_sched_scan_ie_len)
 		return -EINVAL;
 
 	mutex_lock(&rdev->sched_scan_mtx);