[PATCH] mac80211: Add iface name when calling WARN-ON.

[greearb@candelatech.com]

From: Ben Greear <greearb@candelatech.com>

This lets the user know which interface has failed
the check_sdata_in_driver check.

Signed-off-by: Ben Greear <greearb@candelatech.com>
---
:100644 100644 e8960ae... e62e7c3... M	net/mac80211/driver-ops.h
 net/mac80211/driver-ops.h |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index e8960ae..e62e7c3 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -7,7 +7,11 @@
 
 static inline void check_sdata_in_driver(struct ieee80211_sub_if_data *sdata)
 {
-	WARN_ON(!(sdata->flags & IEEE80211_SDATA_IN_DRIVER));
+	if (unlikely(!(sdata->flags & IEEE80211_SDATA_IN_DRIVER))) {
+		printk(KERN_ERR "%s:  Failed check-sdata-in-driver check, flags: 0x%x\n",
+		       sdata->dev->name, sdata->flags);
+		WARN_ON(1);
+	}
 }
 
 static inline struct ieee80211_sub_if_data *
-- 
1.7.3.4