Commit Graph

1652 Commits

Author SHA1 Message Date
David S. Miller d8d326dc7a Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-06-16 13:41:55 -07:00
Christoph Fritz 021570e55b mac80211: fix warn, enum may be used uninitialized
regression introduced by b8d92c9c14

In function ‘ieee80211_work_rx_queued_mgmt’:
warning: ‘rma’ may be used uninitialized in this function

this re-adds default value WORK_ACT_NONE back to rma

Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-16 15:49:16 -04:00
David S. Miller 327723edeb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-06-09 11:13:23 -07:00
Johannes Berg b054b747a6 mac80211: fix deauth before assoc
When we receive a deauthentication frame before
having successfully associated, we neither print
a message nor abort assocation. The former makes
it hard to debug, while the latter later causes
a warning in cfg80211 when, as will typically be
the case, association timed out.

This warning was reported by many, e.g. in
https://bugzilla.kernel.org/show_bug.cgi?id=15981,
but I couldn't initially pinpoint it. I verified
the fix by hacking hostapd to send a deauth frame
instead of an association response.

Cc: stable@kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Tested-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-08 14:41:54 -04:00
Holger Schurig 35dd0509b2 mac80211: fix function pointer check
This makes "iw wlan0 dump survey" work again with
mac80211-based drivers that support it, e.g. ath5k.

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-07 14:44:40 -04:00
Johannes Berg 8b9a4e6e44 mac80211: process station blockack action frames from work
Processing an association response could take a bit
of time while we set up the hardware etc. During that
time, the AP might already send a blockack request.
If this happens very quickly on a fairly slow machine,
we can end up processing the blockack request before
the association processing has finished. Since the
blockack processing cannot sleep right now, we also
cannot make it wait in the driver.

As a result, sometimes on slow machines the iwlagn
driver gets totally confused, and no traffic can pass
when the aggregation setup was done before the assoc
setup completed.

I'm working on a proper fix for this, which involves
queuing all blockack category action frames from a
work struct, and also allowing the ampdu_action driver
callback to sleep, which will generally clean up the
code and make things easier.

However, this is a very involved and complex change.
To fix the problem at hand in a way that can also be
backported to stable, I've come up with this patch.
Here, I simply process all aggregation action frames
from the managed interface skb queue, which means
their processing will be serialized with processing
the association response, thereby fixing the problem.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-04 15:50:51 -04:00
David S. Miller 4f4aeb7fd0 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-06-03 12:30:58 -07:00
Johannes Berg 51a0d38de2 mac80211: fix dialog token allocator
The dialog token allocator has apparently been broken
since b83f4e15 ("mac80211: fix deadlock in sta->lock")
because it got moved out under the spinlock. Fix it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-01 14:33:02 -04:00
Johannes Berg 8ae5977ff9 mac80211: fix blockack-req processing
Daniel reported that the paged RX changes had
broken blockack request frame processing due
to using data that wasn't really part of the
skb data.

Fix this using skb_copy_bits() for the needed
data. As a side effect, this adds a check on
processing too short frames, which previously
this code could do.

Reported-by: Daniel Halperin <dhalperi@cs.washington.edu>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Daniel Halperin <dhalperi@cs.washington.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-06-01 14:33:02 -04:00
David S. Miller 64960848ab Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2010-05-31 05:46:45 -07:00
Johannes Berg 368a07d26a mac80211: make a function static
sparse correctly complains that
__ieee80211_get_channel_mode is not static.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-28 13:41:27 -04:00
Linus Torvalds b1cdc4670b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (63 commits)
  drivers/net/usb/asix.c: Fix pointer cast.
  be2net: Bug fix to avoid disabling bottom half during firmware upgrade.
  proc_dointvec: write a single value
  hso: add support for new products
  Phonet: fix potential use-after-free in pep_sock_close()
  ath9k: remove VEOL support for ad-hoc
  ath9k: change beacon allocation to prefer the first beacon slot
  sock.h: fix kernel-doc warning
  cls_cgroup: Fix build error when built-in
  macvlan: do proper cleanup in macvlan_common_newlink() V2
  be2net: Bug fix in init code in probe
  net/dccp: expansion of error code size
  ath9k: Fix rx of mcast/bcast frames in PS mode with auto sleep
  wireless: fix sta_info.h kernel-doc warnings
  wireless: fix mac80211.h kernel-doc warnings
  iwlwifi: testing the wrong variable in iwl_add_bssid_station()
  ath9k_htc: rare leak in ath9k_hif_usb_alloc_tx_urbs()
  ath9k_htc: dereferencing before check in hif_usb_tx_cb()
  rt2x00: Fix rt2800usb TX descriptor writing.
  rt2x00: Fix failed SLEEP->AWAKE and AWAKE->SLEEP transitions.
  ...
2010-05-25 16:59:51 -07:00
Alexey Dobriyan 4be929be34 kernel-wide: replace USHORT_MAX, SHORT_MAX and SHORT_MIN with USHRT_MAX, SHRT_MAX and SHRT_MIN
- C99 knows about USHRT_MAX/SHRT_MAX/SHRT_MIN, not
  USHORT_MAX/SHORT_MAX/SHORT_MIN.

- Make SHRT_MIN of type s16, not int, for consistency.

[akpm@linux-foundation.org: fix drivers/dma/timb_dma.c]
[akpm@linux-foundation.org: fix security/keys/keyring.c]
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25 08:07:02 -07:00
Randy Dunlap a0c9101c05 wireless: fix sta_info.h kernel-doc warnings
Fix sta_info.h kernel-doc warnings:

Warning(net/mac80211/sta_info.h:164): No description found for parameter 'tid_active_rx[STA_TID_NUM]'
Warning(net/mac80211/sta_info.h:164): Excess struct/union/enum/typedef member 'tid_state_rx' description in 'sta_ampdu_mlme'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-24 15:07:43 -04:00
John W. Linville 3dc3fc52ea Revert "ath9k: Group Key fix for VAPs"
This reverts commit 03ceedea97.

This patch was reported to cause a regression in which connectivity is
lost and cannot be reestablished after a suspend/resume cycle.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-24 14:59:27 -04:00
Linus Torvalds a69eee4988 Revert "ath9k: Group Key fix for VAPs"
This reverts commit 03ceedea97, since it
breaks resume from suspend-to-ram on Rafael's Acer Ferrari One.
NetworkManager thinks everything is ok, but it can't connect to the AP
to get an IP address after the resume.

In fact, it even breaks resume for non-ath9k chipsets: reverting it also
fixes Rafael's Toshiba Protege R500 with the iwlagn driver.  As Johannes
says:

  "Indeed, this patch needs to be reverted. That mac80211 change is wrong
   and completely unnecessary."

Reported-and-requested-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Daniel Yingqiang Ma <yma.cool@gmail.com>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24 07:45:43 -07:00
Linus Torvalds f8965467f3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1674 commits)
  qlcnic: adding co maintainer
  ixgbe: add support for active DA cables
  ixgbe: dcb, do not tag tc_prio_control frames
  ixgbe: fix ixgbe_tx_is_paused logic
  ixgbe: always enable vlan strip/insert when DCB is enabled
  ixgbe: remove some redundant code in setting FCoE FIP filter
  ixgbe: fix wrong offset to fc_frame_header in ixgbe_fcoe_ddp
  ixgbe: fix header len when unsplit packet overflows to data buffer
  ipv6: Never schedule DAD timer on dead address
  ipv6: Use POSTDAD state
  ipv6: Use state_lock to protect ifa state
  ipv6: Replace inet6_ifaddr->dead with state
  cxgb4: notify upper drivers if the device is already up when they load
  cxgb4: keep interrupts available when the ports are brought down
  cxgb4: fix initial addition of MAC address
  cnic: Return SPQ credit to bnx2x after ring setup and shutdown.
  cnic: Convert cnic_local_flags to atomic ops.
  can: Fix SJA1000 command register writes on SMP systems
  bridge: fix build for CONFIG_SYSFS disabled
  ARCNET: Limit com20020 PCI ID matches for SOHARD cards
  ...

Fix up various conflicts with pcmcia tree drivers/net/
{pcmcia/3c589_cs.c, wireless/orinoco/orinoco_cs.c and
wireless/orinoco/spectrum_cs.c} and feature removal
(Documentation/feature-removal-schedule.txt).

Also fix a non-content conflict due to pm_qos_requirement getting
renamed in the PM tree (now pm_qos_request) in net/mac80211/scan.c
2010-05-20 21:04:44 -07:00
Linus Torvalds 46ee964509 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  PM: PM QOS update fix
  Freezer / cgroup freezer: Update stale locking comments
  PM / platform_bus: Allow runtime PM by default
  i2c: Fix bus-level power management callbacks
  PM QOS update
  PM / Hibernate: Fix block_io.c printk warning
  PM / Hibernate: Group swap ops
  PM / Hibernate: Move the first_sector out of swsusp_write
  PM / Hibernate: Separate block_io
  PM / Hibernate: Snapshot cleanup
  FS / libfs: Implement simple_write_to_buffer
  PM / Hibernate: document open(/dev/snapshot) side effects
  PM / Runtime: Add sysfs debug files
  PM: Improve device power management document
  PM: Update device power management document
  PM: Allow runtime_suspend methods to call pm_schedule_suspend()
  PM: pm_wakeup - switch to using bool
2010-05-20 09:03:55 -07:00
Joe Perches 3fa21e07e6 net: Remove unnecessary returns from void function()s
This patch removes from net/ (but not any netfilter files)
all the unnecessary return; statements that precede the
last closing brace of void functions.

It does not remove the returns that are immediately
preceded by a label as gcc doesn't like that.

Done via:
$ grep -rP --include=*.[ch] -l "return;\n}" net/ | \
  xargs perl -i -e 'local $/ ; while (<>) { s/\n[ \t\n]+return;\n}/\n}/g; print; }'

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 23:23:14 -07:00
John W. Linville 6fe70aae0d Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem 2010-05-17 13:57:43 -04:00
John W. Linville 0c348d7c14 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-05-17 13:31:05 -04:00
Abhijeet Kolekar 058897a4e9 mac80211: fix paged defragmentation
Paged RX skb patch broke the defragmentation. We need to read hdr again
after linearization.

It fixes following bug
http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2194

Signed-off-by: Zhu, Yi <yi.zhu@intel.com>
Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:07 -04:00
Wey-Yi Guy 9feaddc77b mac80211: check channel switch mode for future frames transmit
Check the mode in channel switch ie for either 0 or 1 on transmission.
A channel switch mode set to 1 means that the STA in a BSS to which the
frame containing the element is addressed shall transmit no further
frames 	within the BSS until the scheduled channel switch.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:05 -04:00
Johannes Berg 5ce6e438d5 mac80211: add offload channel switch support
This adds support for offloading the channel switch
operation to devices that support such, typically
by having specific firmware API for it. The reasons
for this could be that the firmware provides better
timing or that regulatory enforcement done by the
device requires special handling of CSAs.

In order to allow drivers to specify the timing to
the device, the new channel_switch callback will
pass through the received frame's mactime, where
available.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:39:05 -04:00
Johannes Berg b8d92c9c14 mac80211: don't process work item with wrong frame
When we process a frame, we currently just match it
to the work struct by the MAC addresses, and not by
the work type. This means that we can end up doing
the work for an association request item when (for
whatever reason) we receive another frame type, for
example a probe response. Processing the wrong type
of frame will lead to completely invalid data being
processed, and will lead to various problems like
thinking the association was successful even if the
AP never sent an assocation response.

Fix this by making each processing function check
that it is invoked for the right work struct type
only and continue processing otherwise (and drop
frames that we didn't expect).

This bug was uncovered during the debugging for
https://bugzilla.kernel.org/show_bug.cgi?id=15862
but doesn't seem to be the cause for any of the
various problems reported there.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-12 16:28:52 -04:00
David S. Miller 278554bd65 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	Documentation/feature-removal-schedule.txt
	drivers/net/wireless/ath/ar9170/usb.c
	drivers/scsi/iscsi_tcp.c
	net/ipv4/ipmr.c
2010-05-12 00:05:35 -07:00
John W. Linville cc755896a4 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
Conflicts:
	drivers/net/wireless/ath/ar9170/main.c
2010-05-11 14:24:55 -04:00
David S. Miller de02d72bb3 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2010-05-10 22:53:41 -07:00
Reinette Chatre a15707d80e Merge branch 'wireless-2.6' into wireless-next-2.6
Conflicts:
	drivers/net/wireless/iwlwifi/iwl-dev.h
2010-05-10 15:08:11 -07:00
Mark Gross ed77134bfc PM QOS update
This patch changes the string based list management to a handle base
implementation to help with the hot path use of pm-qos, it also renames
much of the API to use "request" as opposed to "requirement" that was
used in the initial implementation.  I did this because request more
accurately represents what it actually does.

Also, I added a string based ABI for users wanting to use a string
interface.  So if the user writes 0xDDDDDDDD formatted hex it will be
accepted by the interface.  (someone asked me for it and I don't think
it hurts anything.)

This patch updates some documentation input I got from Randy.

Signed-off-by: markgross <mgross@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-05-10 23:08:19 +02:00
John W. Linville a472e71b3c mac80211: set IEEE80211_TX_CTL_FIRST_FRAGMENT for beacons
Also simplify the flags assignment into a single statement at the
end of ieee80211_beacon_get_tim.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-07 14:55:55 -04:00
Johannes Berg 0aaffa9b96 mac80211: improve HT channel handling
Currently, when one interface switches HT mode,
all others will follow along. This is clearly
undesirable, since the new one might switch to
no-HT while another one is operating in HT.

Address this issue by keeping track of the HT
mode per interface, and allowing only changes
that are compatible, i.e. switching into HT40+
is not possible when another interface is in
HT40-, in that case the second one needs to
fall back to HT20.

Also, to allow drivers to know what's going on,
store the per-interface HT mode (channel type)
in the virtual interface's bss_conf.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-07 14:55:51 -04:00
Johannes Berg f444de05d2 cfg80211/mac80211: better channel handling
Currently (all tested with hwsim) you can do stupid
things like setting up an AP on a certain channel,
then adding another virtual interface and making
that associate on another channel -- this will make
the beaconing to move channel but obviously without
the necessary IEs data update.

In order to improve this situation, first make the
configuration APIs (cfg80211 and nl80211) aware of
multi-channel operation -- we'll eventually need
that in the future anyway. There's one userland API
change and one API addition. The API change is that
now SET_WIPHY must be called with virtual interface
index rather than only wiphy index in order to take
effect for that interface -- luckily all current
users (hostapd) do that. For monitor interfaces, the
old setting is preserved, but monitors are always
slaved to other devices anyway so no guarantees.

The second userland API change is the introduction
of a per virtual interface SET_CHANNEL command, that
hostapd should use going forward to make it easier
to understand what's going on (it can automatically
detect a kernel with this command).

Other than mac80211, no existing cfg80211 drivers
are affected by this change because they only allow
a single virtual interface.

mac80211, however, now needs to be aware that the
channel settings are per interface now, and needs
to disallow (for now) real multi-channel operation,
which is another important part of this patch.

One of the immediate benefits is that you can now
start hostapd to operate on a hardware that already
has a connection on another virtual interface, as
long as you specify the same channel.

Note that two things are left unhandled (this is an
improvement -- not a complete fix):

 * different HT/no-HT modes

   currently you could start an HT AP and then
   connect to a non-HT network on the same channel
   which would configure the hardware for no HT;
   that can be fixed fairly easily

 * CSA

   An AP we're connected to on a virtual interface
   might indicate switching channels, and in that
   case we would follow it, regardless of how many
   other interfaces are operating; this requires
   more effort to fix but is pretty rare after all

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-07 14:55:50 -04:00
Johannes Berg ac8dd506e4 mac80211: fix BSS info reconfiguration
When reconfiguring an interface due to a previous
hardware restart, mac80211 will currently include
the new IBSS flag on non-IBSS interfaces which may
confuse drivers.

Instead of doing the ~0 trick, simply spell out
which things are going to be reconfigured.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-07 14:55:49 -04:00
Reinette Chatre 79733a865c mac80211: remove association work when processing deauth request
In https://bugzilla.kernel.org/show_bug.cgi?id=15794 a user encountered the
following:

[18967.469098] wlan0: authenticated
[18967.472527] wlan0: associate with 00:1c:10:b8:e3:ea (try 1)
[18967.472585] wlan0: deauthenticating from 00:1c:10:b8:e3:ea by local choice (reason=3)
[18967.672057] wlan0: associate with 00:1c:10:b8:e3:ea (try 2)
[18967.872357] wlan0: associate with 00:1c:10:b8:e3:ea (try 3)
[18968.072960] wlan0: association with 00:1c:10:b8:e3:ea timed out
[18968.076890] ------------[ cut here ]------------
[18968.076898] WARNING: at net/wireless/mlme.c:341 cfg80211_send_assoc_timeout+0xa8/0x140()
[18968.076900] Hardware name: GX628
[18968.076924] Pid: 1408, comm: phy0 Not tainted 2.6.34-rc4-00082-g250541f-dirty #3
[18968.076926] Call Trace:
[18968.076931]  [<ffffffff8103459e>] ?  warn_slowpath_common+0x6e/0xb0
[18968.076934]  [<ffffffff8157c2d8>] ?  cfg80211_send_assoc_timeout+0xa8/0x140
[18968.076937]  [<ffffffff8103ff8b>] ? mod_timer+0x10b/0x180
[18968.076940]  [<ffffffff8158f0fc>] ?  ieee80211_assoc_done+0xbc/0xc0
[18968.076943]  [<ffffffff81590d53>] ?  ieee80211_work_work+0x553/0x11c0
[18968.076945]  [<ffffffff8102d931>] ? finish_task_switch+0x41/0xb0
[18968.076948]  [<ffffffff81590800>] ?  ieee80211_work_work+0x0/0x11c0
[18968.076951]  [<ffffffff810476fb>] ? worker_thread+0x13b/0x210
[18968.076954]  [<ffffffff8104b6b0>] ?  autoremove_wake_function+0x0/0x30
[18968.076956]  [<ffffffff810475c0>] ? worker_thread+0x0/0x210
[18968.076959]  [<ffffffff8104b21e>] ? kthread+0x8e/0xa0
[18968.076962]  [<ffffffff810031f4>] ?  kernel_thread_helper+0x4/0x10
[18968.076964]  [<ffffffff8104b190>] ? kthread+0x0/0xa0
[18968.076966]  [<ffffffff810031f0>] ?  kernel_thread_helper+0x0/0x10
[18968.076968] ---[ end trace 8aa6265f4b1adfe0 ]---

As explained by Johannes Berg <johannes@sipsolutions.net>:

We authenticate successfully, and then userspace requests association.
Then we start that process, but the AP doesn't respond. While we're
still waiting for an AP response, userspace asks for a deauth. We do
the deauth, but don't abort the association work. Then once the
association work times out we tell cfg80211, but it no longer wants
to know since for all it is concerned we accepted the deauth that
also kills the association attempt.

Fix this by, upon receipt of deauth request, removing the association work
and continuing to send the deauth.

Unfortunately the user reporting the issue is not able to reproduce this
problem anymore and cannot verify this fix. This seems like a well understood
issue though and I thus present the patch.

Bug-identified-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-07 14:26:38 -04:00
John W. Linville 83163244f8 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
Conflicts:
	drivers/net/wireless/libertas_tf/cmd.c
	drivers/net/wireless/libertas_tf/main.c
2010-05-05 16:14:16 -04:00
Johannes Berg adfba3c7c0 mac80211: use fixed channel in ibss join when appropriate
"mac80211: improve IBSS scanning" was missing a hunk.
This adds that hunk as originally intended.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-05 15:10:57 -04:00
John W. Linville 1d7d969dd0 Merge branch 'wireless-next-2.6' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-2.6 2010-05-03 14:53:49 -04:00
Johannes Berg be4a4b6a5d mac80211: improve IBSS scanning
When IBSS is fixed to a frequency, it can still
scan to try to find the right BSSID. This makes
sense if the BSSID isn't also fixed, but it need
not scan all channels -- just one is sufficient.
Make it do that by moving the scan setup code to
ieee80211_request_internal_scan() and include
a channel variable setting.

Note that this can be further improved to start
the IBSS right away if both frequency and BSSID
are fixed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-03 14:53:10 -04:00
Johannes Berg a75b4363ea mac80211: allow controlling aggregation manually
This allows enabling TX and disabling both TX and
RX aggregation sessions manually in debugfs. It is
very useful for debugging session initiation and
teardown problems since with this you don't have
to force a lot of traffic to get aggregation and
thus have less data to analyse.

Also, to debug mac80211 code itself, make hwsim
"support" aggregation sessions. It will still just
transfer the frame, but go through the setup and
teardown handshakes.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-03 14:53:10 -04:00
Johannes Berg f7c65594f7 mac80211: fix ieee80211_find_sta[_by_hw]
Both of these functions can currently return
a station pointer that, to the driver, is
invalid (in IBSS mode only) because adding
the station failed. Check for that, and also
make ieee80211_find_sta() properly use the
per interface station search.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-05-03 14:51:47 -04:00
Reinette Chatre ad41ee3a45 Merge branch 'wireless-2.6' into wireless-next-2.6
Patch "iwlwifi: work around passive scan issue" was merged into
wireless-2.6, but touched a lot of code since modified (and moved)
in wireless-next-2.6. This caused some conflicts.

Conflicts:
	drivers/net/wireless/iwlwifi/iwl-scan.c

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-04-30 15:13:00 -07:00
John W. Linville f5c044e53a mac80211: remove deprecated noise field from ieee80211_rx_status
Also remove associated IEEE80211_HW_NOISE_DBM from ieee80211_hw_flags.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-30 15:38:13 -04:00
Johannes Berg 49b5c7f473 mac80211: tell driver about IBSS merge
My previous patch "mac80211: notify driver about
IBSS status" left a problem -- when we merge with
a new BSSID, we never tell the driver that we left
the old one. Fix that.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-30 14:59:15 -04:00
Johannes Berg 8fc214ba95 mac80211: notify driver about IBSS status
Some drivers (e.g. iwlwifi) need to know and try
to figure it out based on other things, but making
it explicit is definitely better.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-28 16:50:29 -04:00
Stanislaw Gruszka 76f2736401 mac80211: fix supported rates IE if AP doesn't give us it's rates
If AP do not provide us supported rates before assiociation, send
all rates we are supporting instead of empty information element.

v1 -> v2: Add comment.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-28 16:50:29 -04:00
Stanislaw Gruszka f0b058b617 mac80211: do not wip out old supported rates
Use old supported rates, if AP do not provide supported rates
information element in a new managment frame.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-28 16:50:28 -04:00
Shanyu Zhao a2c40249a3 mac80211: fix rts threshold check
Currently whenever rts thresold is set, every packet will use RTS
protection no matter its size exceeds the threshold or not. This is
due to a bug in the rts threshold check.
	if (len > tx->local->hw.wiphy->rts_threshold) {
		txrc.rts = rts = true;
	}
Basically it is comparing an int (len) and a u32 (rts_threshold),
and the variable len is assigned as:
	len = min_t(int, tx->skb->len + FCS_LEN,
			 tx->local->hw.wiphy->frag_threshold);
However, when frag_threshold is "-1", len is always "-1", which is
0xffffffff therefore rts is always set to true.

CC: stable@kernel.org
Signed-off-by: Shanyu Zhao <shanyu.zhao@intel.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-27 16:09:23 -04:00
Johannes Berg a060bbfe4e mac80211: give virtual interface to hw_scan
When scanning, it is somewhat important to scan
on the correct virtual interface. All drivers
that currently implement hw_scan only support a
single virtual interface, but that may change
and then we'd want to be ready.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-27 16:09:23 -04:00
Juuso Oikarinen 195e294d21 mac80211: Determine dynamic PS timeout based on ps-qos network latency
Determine the dynamic PS timeout based on the configured ps-qos network
latency. For backwards wext compatibility, allow the dynamic PS timeout
configured by the cfg80211 to overrule the automatically determined value.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-27 16:09:22 -04:00