linux.git/drivers/net/wireless, branch v3.10-rc5

ath9k: use correct OTP register offsets for AR9550

2013-05-28T17:43:10+00:00

Accessing the OTP memory on AR9950 causes a data bus
like this:

  Data bus error, epc == 801f7774, ra == 801f7774
  Oops[#1]:
  CPU: 0 PID: 1 Comm: swapper Not tainted 3.10.0-rc3 #592
  task: 87c28000 ti: 87c22000 task.ti: 87c22000
  $ 0   : 00000000 00000061 deadc0de 00000000
  $ 4   : b8115f18 00015f18 00000007 00000004
  $ 8   : 00000001 7c7c3c7c 7c7c7c7c 7c7c7c7c
  $12   : 7c7c3c7c 80320a68 00000000 7c7c7c3c
  $16   : 87cd8010 00015f18 00000007 00000000
  $20   : 00000064 00000004 87c23c7c 8035210c
  $24   : 00000000 801f3674
  $28   : 87c22000 87c23b48 00000001 801f7774
  Hi    : 00000000
  Lo    : 00000064
  epc   : 801f7774 ath9k_hw_wait+0x58/0xb0
      Not tainted
  ra    : 801f7774 ath9k_hw_wait+0x58/0xb0
  Status: 1000cc03 KERNEL EXL IE
  Cause : 4080801c
  PrId  : 00019750 (MIPS 74Kc)
  Modules linked in:
  Process swapper (pid: 1, threadinfo=87c22000, task=87c28000, ts=00000000)
  Stack : 0000000f 00000061 00002710 8006240c 00000001 87cd8010 87c23bb0 87cd8010
          00000000 00000004 00000003 80210c7c 000000b3 67fa8000 0000032a 000006fe
          000003e8 00000002 00000028 87c23bf0 000003ff 80210d24 803e5630 80210e28
          00000000 00000007 87cd8010 00007044 00000004 00000061 000003ff 000001ff
          87c26000 87cd8010 00000220 87cd8bb8 80210000 8020fcf4 87c22000 87c23c08
          ...
  Call Trace:
  [<801f7774>] ath9k_hw_wait+0x58/0xb0
  [<80210c7c>] ar9300_otp_read_word+0x80/0xd4
  [<80210d24>] ar9300_read_otp+0x54/0xb0
  [<8020fcf4>] ar9300_check_eeprom_header+0x1c/0x40
  [<80210fe4>] ath9k_hw_ar9300_fill_eeprom+0x118/0x39c
  [<80206650>] ath9k_hw_eeprom_init+0x74/0xb4
  [<801f96d0>] ath9k_hw_init+0x7ec/0x96c
  [<801e65ec>] ath9k_init_device+0x340/0x758
  [<801f35d0>] ath_ahb_probe+0x21c/0x2c0
  [<801c041c>] driver_probe_device+0xc0/0x1e4
  [<801c05ac>] __driver_attach+0x6c/0xa4
  [<801bea08>] bus_for_each_dev+0x64/0xa8
  [<801bfa40>] bus_add_driver+0xcc/0x24c
  [<801c0954>] driver_register+0xbc/0x17c
  [<803f8fc0>] ath9k_init+0x5c/0x88
  [<800608fc>] do_one_initcall+0xec/0x1a0
  [<803e6a68>] kernel_init_freeable+0x13c/0x200
  [<80309cdc>] kernel_init+0x1c/0xe4
  [<80062450>] ret_from_kernel_thread+0x10/0x18

On the AR9550, the OTP registers are located at
the same address as on the AR9340. Use the correct
values to avoid the error.

Cc: stable@vger.kernel.org  # 3.6+
Signed-off-by: Gabor Juhos 
Signed-off-by: John W. Linville

brcmfmac: Disable powersave mode for P2P link.

2013-05-28T17:43:10+00:00

For p2p client mode powersave mode should be kept disabled. It is
working but inefficient. In general p2p links do no benefit from this
mode, because these links are setup temporarily to transfer data.

Reviewed-by: Arend Van Spriel 
Signed-off-by: Hante Meuleman 
Signed-off-by: Arend van Spriel 
Signed-off-by: John W. Linville

brcmfmac: Add multi channel support for P2P.

2013-05-28T17:43:10+00:00

Multi channel support was disabled. This patch will enable it and
configure the P2P GO on the correct frequency when multi channel
is used.

Reviewed-by: Arend Van Spriel 
Signed-off-by: Hante Meuleman 
Signed-off-by: Arend van Spriel 
Signed-off-by: John W. Linville

brcmfmac: use struct net_device::destructor to remove interfaces

2013-05-28T17:43:09+00:00

Upon deleting a P2P_CLIENT/GO interface the vif and consequently
the wdev is freed before the net_device is actually being unregistered
but cfg80211 still needs to access the wdev. Using destructor field
to free the net_device and vif.

Reviewed-by: Hante Meuleman 
Signed-off-by: Arend van Spriel 
Signed-off-by: John W. Linville

brcmfmac: free net device when registration fails

2013-05-28T17:43:09+00:00

When registration fails the net device is no longer needed. Free
the net device and remove reference to private data from the
driver.

Reviewed-by: Hante Meuleman 
Signed-off-by: Arend van Spriel 
Signed-off-by: John W. Linville

brcmfmac: add additional parameter to brcmf_free_vif()

2013-05-28T17:43:09+00:00

Pass the struct brcmf_cfg80211_info instance instead of obtaining
through vif itself using vif->wdev. This is needed as the netdev
associated with this vif is already unregistered.

Reviewed-by: Hante Meuleman 
Signed-off-by: Arend van Spriel 
Signed-off-by: John W. Linville

brcmfmac: Fix p2p setup when connected to ap on 5G.

2013-05-28T17:43:08+00:00

The firmware requires that on p2p setup when net interfaces
are created or updated that they start initially with the same
channel as the channel in use for the current connection
(if any). If none exists take default channel 11.

Reviewed-by: Arend Van Spriel 
Reviewed-by: Franky (Zhenhui) Lin 
Reviewed-by: Pieter-Paul Giesberts 
Signed-off-by: Hante Meuleman 
Signed-off-by: Arend van Spriel 
Signed-off-by: John W. Linville

brcmfmac: Turn off ARP offloading when configured for AP.

2013-05-28T17:43:08+00:00

ARP offloading should only be used in STA or P2P client mode. It
is currently configured once at init. When being configured for AP
ARP offloading should be turned off and when AP mode is left it can
be turned back on.

Cc: stable@vger.kernel.org
Reviewed-by: Arend Van Spriel 
Signed-off-by: Hante Meuleman 
Signed-off-by: Arend van Spriel 
Signed-off-by: John W. Linville

Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes

2013-05-28T17:39:40+00:00

iwlwifi: dvm: fix zero LQ CMD sending avoidance

2013-05-27T09:33:57+00:00

In 63b77bf489881747c5118476918cc8c29378ee63

	iwlwifi: dvm: don't send zeroed LQ cmd

I tried to avoid to send zeroed LQ cmd, but I made a (very)
stupid mistake in the memcmp.
Since this patch has been ported to stable, the fix should
go to stable too.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=58341

Cc: stable@vger.kernel.org
Reported-by: Hinnerk van Bruinehsen 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg