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linux/net/mac80211
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Yogesh Ashok Powar 3bff186518 mac80211: Skip tailroom reservation for full HW-crypto devices with race fix 
Based on inputs from Johannes Berg <johannes@sipsolutions.net>
from http://article.gmane.org/gmane.linux.kernel.wireless.general/68193
and http://article.gmane.org/gmane.linux.kernel.wireless.general/71702

In xmit path, devices that do full hardware crypto (including
MMIC and ICV) need no tailroom. For such devices, tailroom
reservation can be skipped if all the keys are programmed into
the hardware (i.e software crypto is not used for any of the
keys) and none of the keys wants software to generate Michael
MIC and IV.

v2: Added check for IV along with MMIC.
Reported-by: Fabio Rossi <rossi.f@inwind.it>
Tested-by: Fabio Rossi <rossi.f@inwind.it>
Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Cc: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>

v3: Fixing races to avoid WARNING: at net/mac80211/wpa.c:397
    ccmp_encrypt_skb+0xc4/0x1f0
Reported-by: Andreas Hartmann <andihartmann@01019freenet.de>
Tested-by: Andreas Hartmann <andihartmann@01019freenet.de>

v4: Added links with message ID

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-07-05 15:26:50 -04:00
..
aes_ccm.c mac80211: Fix warnings due to -Wunused-but-set-variable 2011-04-26 15:50:31 -04:00
aes_ccm.h
aes_cmac.c mac80211: Remove redundant checks for NULL before calls to crypto_free_cipher() 2010-11-15 13:26:11 -05:00
aes_cmac.h
agg-rx.c mac80211: reestablish mis-configured existing Rx BA sessions 2011-06-27 15:09:40 -04:00
agg-tx.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2011-05-20 13:43:21 -07:00
cfg.c mac80211: propagate information about STA WME support down 2011-06-29 15:11:00 -04:00
cfg.h
chan.c mac80211: fix channel type recalculation with HT and non-HT interfaces 2011-03-14 14:46:58 -04:00
debugfs.c mac80211: add basic support for WoWLAN 2011-05-05 14:59:20 -04:00
debugfs.h mac80211: refactor debugfs function generation code 2010-11-15 13:24:48 -05:00
debugfs_key.c mac80211: sparse RCU annotations 2011-05-16 14:10:41 -04:00
debugfs_key.h mac80211: support separate default keys 2010-12-13 15:23:29 -05:00
debugfs_netdev.c mac80211: fix SMPS debugfs locking 2011-04-20 16:05:59 -04:00
debugfs_netdev.h mac80211: reduce reliance on netdev 2009-12-21 18:38:52 -05:00
debugfs_sta.c mac80211: fix debugfs printk format warning 2011-04-19 15:38:03 -04:00
debugfs_sta.h
driver-ops.h mac80211: add cancel_hw_scan() callback 2011-06-17 14:22:18 -04:00
driver-trace.c mac80211: fix sparse warnings/errors 2009-08-04 16:43:25 -04:00
driver-trace.h mac80211: add cancel_hw_scan() callback 2011-06-17 14:22:18 -04:00
event.c
ht.c mac80211: Stop BA session event from device 2011-06-07 14:41:36 -04:00
ibss.c mac80211: fix IBSS teardown race 2011-06-08 14:19:05 -04:00
ieee80211_i.h mac80211: Skip tailroom reservation for full HW-crypto devices with race fix 2011-07-05 15:26:50 -04:00
iface.c mac80211: call dev_alloc_name before copying name to sdata 2011-06-03 14:22:06 -04:00
Kconfig mac80211: remove the dependency on crypto_blkcipher 2011-04-04 16:20:00 -04:00
key.c mac80211: Skip tailroom reservation for full HW-crypto devices with race fix 2011-07-05 15:26:50 -04:00
key.h mac80211: sparse RCU annotations 2011-05-16 14:10:41 -04:00
led.c mac80211: remove stray extern 2011-01-05 16:07:12 -05:00
led.h mac80211: selective throughput LED trigger active 2010-12-22 14:33:37 -05:00
main.c mac80211: add missing rcu_barrier 2011-05-16 14:25:29 -04:00
Makefile mac80211: add the minstrel_ht rate control algorithm 2010-06-02 16:12:59 -04:00
mesh.c mac80211: mesh: move some code to make it static 2011-05-12 14:10:55 -04:00
mesh.h mac80211: annotate and fix RCU in mesh code 2011-05-16 14:25:29 -04:00
mesh_hwmp.c mac80211: sparse RCU annotations 2011-05-16 14:10:41 -04:00
mesh_pathtbl.c Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2011-05-24 16:47:54 -04:00
mesh_plink.c nl80211: Move peer link state definition to nl80211 2011-05-16 14:10:49 -04:00
michael.c
michael.h
mlme.c mac80211: dynamic PS - don't enter PS when TX frames are pending 2011-06-27 15:09:42 -04:00
offchannel.c mac80211: Optimize scans on current operating channel. 2011-02-04 16:30:32 -05:00
pm.c mac80211: quiesce vif before suspending 2011-06-20 15:34:18 -04:00
rate.c cfg80211/mac80211: improve ad-hoc multicast rate handling 2010-11-24 16:19:35 -05:00
rate.h mac80211: add the minstrel_ht rate control algorithm 2010-06-02 16:12:59 -04:00
rc80211_minstrel.c minstrel_ht: fixed rate mode through debugfs 2011-06-01 15:12:29 -04:00
rc80211_minstrel.h minstrel_ht: fixed rate mode through debugfs 2011-06-01 15:12:29 -04:00
rc80211_minstrel_debugfs.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
rc80211_minstrel_ht.c minstrel_ht: fixed rate mode through debugfs 2011-06-01 15:12:29 -04:00
rc80211_minstrel_ht.h minstrel_ht: move minstrel_mcs_groups declaration to header file 2010-06-24 15:42:18 -04:00
rc80211_minstrel_ht_debugfs.c mac80211: disallow seeks in minstrel debug code 2010-09-16 10:33:17 +02:00
rc80211_pid.h Fix common misspellings 2011-03-31 11:26:23 -03:00
rc80211_pid_algo.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
rc80211_pid_debugfs.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-10-23 11:47:02 -07:00
rx.c wireless: unify QoS control field definitions 2011-06-27 15:09:39 -04:00
scan.c mac80211: Drop DS Channel PARAM in directed probe 2011-06-27 15:09:41 -04:00
spectmgmt.c mac80211: reduce reliance on netdev 2009-12-21 18:38:52 -05:00
sta_info.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2011-05-16 19:32:19 -04:00
sta_info.h mac80211: Stop BA session event from device 2011-06-07 14:41:36 -04:00
status.c mac80211: allow low level drivers to report packet loss 2011-04-28 14:50:00 -04:00
tkip.c mac80211: remove the dependency on crypto_blkcipher 2011-04-04 16:20:00 -04:00
tkip.h mac80211: remove the dependency on crypto_blkcipher 2011-04-04 16:20:00 -04:00
tx.c mac80211: Skip tailroom reservation for full HW-crypto devices with race fix 2011-07-05 15:26:50 -04:00
util.c mac80211: Drop DS Channel PARAM in directed probe 2011-06-27 15:09:41 -04:00
wep.c mac80211: remove the dependency on crypto_blkcipher 2011-04-04 16:20:00 -04:00
wep.h mac80211: remove the dependency on crypto_blkcipher 2011-04-04 16:20:00 -04:00
wme.c wireless: unify QoS control field definitions 2011-06-27 15:09:39 -04:00
wme.h wireless: unify QoS control field definitions 2011-06-27 15:09:39 -04:00
work.c mac80211: Drop DS Channel PARAM in directed probe 2011-06-27 15:09:41 -04:00
wpa.c mac80211: fix rx->key NULL dereference during mic failure 2011-06-27 14:45:25 -04:00
wpa.h