mac80211: extend fast-xmit to driver fragmentation

If the driver handles fragmentation then it wouldn't
be done in software so we can still use the fast-xmit
path in that case.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 160e192..d983683 100644 (file)
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2450,7 +2450,8 @@ void ieee80211_check_fast_xmit(struct sta_info *sta)
                goto out;
 
        /* fast-xmit doesn't handle fragmentation at all */
-       if (local->hw.wiphy->frag_threshold != (u32)-1)
+       if (local->hw.wiphy->frag_threshold != (u32)-1 &&
+           !local->ops->set_frag_threshold)
                goto out;
 
        rcu_read_lock();