mac80211: fix two kernel-doc warnings

One parameter wasn't described and one I forgot to update when
renaming it; also update TBDs in sta_info.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index bba96a2..0b983be 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -287,7 +287,7 @@
  *
  * @idx: rate index to attempt to send with
  * @flags: rate control flags (&enum mac80211_rate_control_flags)
- * @limit: number of retries before fallback
+ * @count: number of tries in this rate before going to the next rate
  *
  * A value of -1 for @idx indicates an invalid rate and, if used
  * in an array of retry rates, that no more rates should be tried.
@@ -1902,6 +1902,8 @@
  * @short_preamble: whether mac80211 will request short-preamble transmission
  *	if the selected rate supports it
  * @max_rate_idx: user-requested maximum rate (not MCS for now)
+ * @skb: the skb that will be transmitted, the control information in it needs
+ *	to be filled in
  */
 struct ieee80211_tx_rate_control {
 	struct ieee80211_hw *hw;