Johannes Berg bde59c475e mac80211: fix deadlock in driver-managed RX BA session start ... When an RX BA session is started by the driver, and it has to tell mac80211 about it, the corresponding bit in tid_rx_manage_offl gets set and the BA session work is scheduled. Upon testing this bit, it will call __ieee80211_start_rx_ba_session(), thus deadlocking as it already holds the ampdu_mlme.mtx, which that acquires again. Fix this by adding ___ieee80211_start_rx_ba_session(), a version of the function that requires the mutex already held. Cc: stable@vger.kernel.org Fixes: 699cb58c8a ("mac80211: manage RX BA session offload without SKB queue") Reported-by: Matteo Croce <mcroce@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>		2017-09-06 15:22:02 +02:00
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aes_ccm.c
aes_ccm.h
aes_cmac.c
aes_cmac.h
aes_gcm.c
aes_gcm.h
aes_gmac.c
aes_gmac.h
agg-rx.c
agg-tx.c
cfg.c
chan.c
debug.h
debugfs.c
debugfs.h
debugfs_key.c
debugfs_key.h
debugfs_netdev.c
debugfs_netdev.h
debugfs_sta.c
debugfs_sta.h
driver-ops.c
driver-ops.h
ethtool.c
fils_aead.c
fils_aead.h
ht.c
ibss.c
ieee80211_i.h
iface.c
Kconfig
key.c
key.h
led.c
led.h
main.c
Makefile
mesh.c
mesh.h
mesh_hwmp.c
mesh_pathtbl.c
mesh_plink.c
mesh_ps.c
mesh_sync.c
michael.c
michael.h
mlme.c
ocb.c
offchannel.c
pm.c
rate.c
rate.h
rc80211_minstrel.c
rc80211_minstrel.h
rc80211_minstrel_debugfs.c
rc80211_minstrel_ht.c
rc80211_minstrel_ht.h
rc80211_minstrel_ht_debugfs.c
rx.c
scan.c
spectmgmt.c
sta_info.c
sta_info.h
status.c
tdls.c
tkip.c
tkip.h
trace.c
trace.h
trace_msg.h
tx.c
util.c
vht.c
wep.c
wep.h
wme.c
wme.h
wpa.c
wpa.h