mac80211: annotate MMIC head/tailroom warning
This message occasionally triggers for some people as in
https://bugzilla.redhat.com/show_bug.cgi?id=1111740 but
it's not clear which (headroom or tailroom) is at fault.
Annotate the message a bit to get more information.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index f7d4ca4..983527a 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -64,8 +64,11 @@
if (!info->control.hw_key)
tail += IEEE80211_TKIP_ICV_LEN;
- if (WARN_ON(skb_tailroom(skb) < tail ||
- skb_headroom(skb) < IEEE80211_TKIP_IV_LEN))
+ if (WARN(skb_tailroom(skb) < tail ||
+ skb_headroom(skb) < IEEE80211_TKIP_IV_LEN,
+ "mmic: not enough head/tail (%d/%d,%d/%d)\n",
+ skb_headroom(skb), IEEE80211_TKIP_IV_LEN,
+ skb_tailroom(skb), tail))
return TX_DROP;
key = &tx->key->conf.key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY];