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author | David S. Miller <davem@davemloft.net> | 2015-04-02 20:16:53 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2015-04-02 20:16:53 (GMT) |
commit | 9f0d34bc344889c2e6c593bd949d7ab821f0f4a5 (patch) | |
tree | e5bfc776a09315afa4dbcae97ac04f2cca239c96 /net/mac80211 | |
parent | e4a924f5768c55002c02ceba9b9f86824c35f956 (diff) | |
parent | 0a4812798fae4f6bfcaab51e31b3898ff5ea3108 (diff) | |
download | linux-9f0d34bc344889c2e6c593bd949d7ab821f0f4a5.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/usb/asix_common.c
drivers/net/usb/sr9800.c
drivers/net/usb/usbnet.c
include/linux/usb/usbnet.h
net/ipv4/tcp_ipv4.c
net/ipv6/tcp_ipv6.c
The TCP conflicts were overlapping changes. In 'net' we added a
READ_ONCE() to the socket cached RX route read, whilst in 'net-next'
Eric Dumazet touched the surrounding code dealing with how mini
sockets are handled.
With USB, it's a case of the same bug fix first going into net-next
and then I cherry picked it back into net.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac80211')
-rw-r--r-- | net/mac80211/agg-rx.c | 8 | ||||
-rw-r--r-- | net/mac80211/rx.c | 7 | ||||
-rw-r--r-- | net/mac80211/sta_info.h | 2 |
3 files changed, 12 insertions, 5 deletions
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index 2c090c5..5c564a6 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -49,8 +49,6 @@ static void ieee80211_free_tid_rx(struct rcu_head *h) container_of(h, struct tid_ampdu_rx, rcu_head); int i; - del_timer_sync(&tid_rx->reorder_timer); - for (i = 0; i < tid_rx->buf_size; i++) __skb_queue_purge(&tid_rx->reorder_buf[i]); kfree(tid_rx->reorder_buf); @@ -93,6 +91,12 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, del_timer_sync(&tid_rx->session_timer); + /* make sure ieee80211_sta_reorder_release() doesn't re-arm the timer */ + spin_lock_bh(&tid_rx->reorder_lock); + tid_rx->removed = true; + spin_unlock_bh(&tid_rx->reorder_lock); + del_timer_sync(&tid_rx->reorder_timer); + call_rcu(&tid_rx->rcu_head, ieee80211_free_tid_rx); } diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 4f7b922c..2cd0227 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -873,9 +873,10 @@ static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata, set_release_timer: - mod_timer(&tid_agg_rx->reorder_timer, - tid_agg_rx->reorder_time[j] + 1 + - HT_RX_REORDER_BUF_TIMEOUT); + if (!tid_agg_rx->removed) + mod_timer(&tid_agg_rx->reorder_timer, + tid_agg_rx->reorder_time[j] + 1 + + HT_RX_REORDER_BUF_TIMEOUT); } else { del_timer(&tid_agg_rx->reorder_timer); } diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 248f56e..7e2fa40 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -175,6 +175,7 @@ struct tid_ampdu_tx { * @reorder_lock: serializes access to reorder buffer, see below. * @auto_seq: used for offloaded BA sessions to automatically pick head_seq_and * and ssn. + * @removed: this session is removed (but might have been found due to RCU) * * This structure's lifetime is managed by RCU, assignments to * the array holding it must hold the aggregation mutex. @@ -199,6 +200,7 @@ struct tid_ampdu_rx { u16 timeout; u8 dialog_token; bool auto_seq; + bool removed; }; /** |