From 3d34deb6737b1ae1f8b7817b57d603807f5d88ea Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 18 Jun 2009 17:25:11 +0200 Subject: [PATCH] mac80211: fix ieee80211_xmit call context ieee80211_xmit() cannot be called with tasklets enabled because it is normally called from within a tasklet. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/tx.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 7adaeb2..a204092 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -2241,5 +2241,12 @@ void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, if (!encrypt) info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; + /* + * The other path calling ieee80211_xmit is from the tasklet, + * and while we can handle concurrent transmissions locking + * requirements are that we do not come into tx with bhs on. + */ + local_bh_disable(); ieee80211_xmit(sdata, skb); + local_bh_enable(); } -- 2.7.4