Commit b1e9be87 authored by Johannes Berg's avatar Johannes Berg

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: default avatarJohannes Berg <johannes.berg@intel.com>
parent c8d65917
...@@ -64,8 +64,11 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx) ...@@ -64,8 +64,11 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx)
if (!info->control.hw_key) if (!info->control.hw_key)
tail += IEEE80211_TKIP_ICV_LEN; tail += IEEE80211_TKIP_ICV_LEN;
if (WARN_ON(skb_tailroom(skb) < tail || if (WARN(skb_tailroom(skb) < tail ||
skb_headroom(skb) < IEEE80211_TKIP_IV_LEN)) 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; return TX_DROP;
key = &tx->key->conf.key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY]; key = &tx->key->conf.key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY];
......
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