linux-stable/include
Johannes Berg 8c358bcd09 mac80211: add time synchronisation with BSS for assoc
Some drivers (iwlegacy, iwlwifi and rt2x00) today use the
bss_conf.last_tsf value. By itself though that value is
completely worthless since it may be ancient. What really
is needed is synchronisation between some device time and
the TSF.

To clarify this, rename bss_conf.last_tsf to sync_tsf and
add sync_device_ts which is obtained from rx_status which
gets a new field device_timestamp for this purpose. This
is intentionally not using the mactime field since that
is used for other things and in IBSS is expected to sync
with the IBSS's TSF which isn't necessarily true for the
device timestamp.

Also, since we have the information and it's useful even
before the connection has been established, give all the
timing details to the driver before authenticating.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-12 12:10:46 +02:00
..
acpi
asm-generic Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-06-01 10:34:35 -07:00
crypto
drm introduce SIZE_MAX 2012-05-31 17:49:26 -07:00
keys
linux nl80211: prepare for non-netdev wireless devs 2012-07-09 14:51:46 +02:00
math-emu
media
memory
misc
mtd
net mac80211: add time synchronisation with BSS for assoc 2012-07-12 12:10:46 +02:00
pcmcia
rdma
rxrpc
scsi
sound
target
trace
video fbdev updates for 3.5 2012-06-01 16:57:51 -07:00
xen
Kbuild