mac80211: Improve confusing comment around tx_info clearing

The comment above the ieee80211_tx_info_clear_status() helper was somewhat
confusing as to which fields it was or wasn't clearing. So replace it by
something that is hopefully more, well, clear.

Signed-off-by: Toke Høiland-Jørgensen <toke@toke.dk>
Link: https://lore.kernel.org/r/20220404210108.2684907-1-toke@toke.dk
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

include/net/mac80211.h

@@ -1201,9 +1201,9 @@ static inline struct ieee80211_rx_status *IEEE80211_SKB_RXCB(struct sk_buff *skb
  * in the TX status but the rate control information (it does clear
  * the count since you need to fill that in anyway).
  *
- * NOTE: You can only use this function if you do NOT use
- *	 info->driver_data! Use info->rate_driver_data
- *	 instead if you need only the less space that allows.
+ * NOTE: While the rates array is kept intact, this will wipe all of the
+ *	 driver_data fields in info, so it's up to the driver to restore
+ *	 any fields it needs after calling this helper.
  */
 static inline void
 ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)