cfg80211: Allow reassociation in associated state

cfg80211 rejects all association requests when in associated state. This
prevents clean roaming within an ESS since one would first need to
disassociate before being able to request reassociation.

Accept the reassociation request and let the old association to be
dropped when the new one is completed. This fixes nl80211-based
roaming with the current snapshot version of wpa_supplicant (that has
code for requesting reassociation explicitly withthe previous BSSID
attribute).

Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
mac80211: Fix panic in aggregation handling

Not assigning the vif pointer causes an oops.
This patch fixes it.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
cfg80211: re-join IBSS when privacy changes

When going from/to a WEP protected IBSS, we need to
leave this one and join a new one to take care of
the changed capability.

Cc: Hong Zhang <henryzhang62@yahoo.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
wl3501_cs: remove pedantic build warning

drivers/net/wireless/wl3501_cs.c: In function ‘wl3501_esbq_exec’:
drivers/net/wireless/wl3501_cs.c:387: warning: ‘tmp’ is used uninitialized in this function
drivers/net/wireless/wl3501_cs.c:384: note: ‘tmp’ was declared here

Signed-off-by: John W. Linville <linville@tuxdriver.com>
rfkill: Add constant for RFKILL_TYPE_FM radio devices

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Janakiram Sistla <janakiram.sistla@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Conflicts:

	net/rfkill/core.c
mac80211: remove encrypt parameter from ieee80211_tx_skb

Since the flags moved into skb->cb, there's no
longer a need to have the encrypt bool passed
into the function, anyone who requires it set
to 0 (false) can just set the flag directly.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Conflicts:

	net/mac80211/mlme.c
	net/mac80211/tx.c
mac80211: move TX status handling

It's enough code to have its own file, I think.
Especially since I'm going to add to it.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

Conflicts:

	net/mac80211/main.c
mac80211: use a structure to hold the mesh config information element

Signed-off-by: Rui Paulo <rpaulo@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
mac80211: update cfg80211 scan result code for the updated mesh conf IE

Signed-off-by: Rui Paulo <rpaulo@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
b43: Enforce DMA descriptor memory constraints

Enforce all device constraints on the descriptor memory region.

There are several constraints on the descriptor memory, as documented
in the specification. The current code does not enforce them and/or
incorrectly enforces them.

Those constraints are:
- The address limitations on 30/32bit engines, that also apply to
  the skbs.
- The 4k alignment requirement on 30/32bit engines.
- The 8k alignment requirement on 64bit engines.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
RDMA/addr: Use appropriate locking with for_each_netdev()

for_each_netdev() should be used with RTNL or dev_base_lock held,
or else we risk a crash.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>