linux-stable.git/drivers/net/wireless/rtlwifi, branch linux-4.2.y

rtlwifi: rtl8821ae: Fix system lockups on boot

2015-11-09T22:37:30+00:00

commit 54328e64047a54b8fc2362c2e1f0fa16c90f739f upstream.

In commit 1277fa2ab2f9 ("rtlwifi: Remove the clear interrupt routine from all
drivers"), the code that cleared all interrupt enable bits before setting them
was removed for all PCI drivers. This fixed an issue that caused TX to be
blocked for 3-5 seconds. On some RTL8821AE units, this change causes soft
lockups to occur on boot. For that reason, the portion of the earlier commit
that applied to rtl8821ae is reverted. Kernels 4.1 and newer are affected.

See http://marc.info/?l=linux-wireless&m=144373370103285&w=2 and
https://bugzilla.opensuse.org/show_bug.cgi?id=944978 for two cases where
this regression affected user systems. Note that this bug does not appear on
any of the developer's setups. For those users whose systems are affected
by the TX blockage, but do not lock up on boot, a module parameter is added
to disable the interrupt clear

Fixes: 1277fa2ab2f9 ("rtlwifi: Remove the clear interrupt routine from all drivers")
Signed-off-by: Larry Finger 
Signed-off-by: Kalle Valo 
Signed-off-by: Greg Kroah-Hartman

rtlwifi: rtl8821ae: Fix an expression that is always false

2015-09-29T17:33:16+00:00

commit 251086f588720277a6f5782020a648ce32c4e00b upstream.

In routine _rtl8821ae_set_media_status(), an incorrect mask results in a test
for AP status to always be false. Similar bugs were fixed in rtl8192cu and
rtl8192de, but this instance was missed at that time.

Reported-by: David Binderman 
Signed-off-by: Larry Finger 
Cc: David Binderman 
Signed-off-by: Kalle Valo 
Signed-off-by: Greg Kroah-Hartman

rtlwifi: rtl8192cu: Add new device ID

2015-09-29T17:33:16+00:00

commit 1642d09fb9b128e8e538b2a4179962a34f38dff9 upstream.

The v2 of NetGear WNA1000M uses a different idProduct: USB ID 0846:9043

Signed-off-by: Adrien Schildknecht 
Acked-by: Larry Finger 
Signed-off-by: Kalle Valo 
Signed-off-by: Greg Kroah-Hartman

rtlwifi: rtl8723be: Add module parameter for MSI interrupts

2015-08-03T08:26:24+00:00

The driver code allows for the disabling of MSI interrupts; however the
module_parm line was missed and the option fails to show with modinfo.

Signed-off-by: Larry Finger 
Cc: Stable  [3.15+]
Signed-off-by: Kalle Valo

rtlwifi: Fix NULL dereference when PCI driver used as an AP

2015-07-31T06:25:35+00:00

In commit 33511b157bbcebaef853cc1811992b664a2e5862 ("rtlwifi: add support to
send beacon frame"), the mechanism for sending beacons was established. That
patch works correctly for rtl8192cu, but there is a possibility of getting
the following warnings in the PCI drivers:

WARNING: CPU: 1 PID: 2439 at net/mac80211/driver-ops.h:12
ieee80211_bss_info_change_notify+0x179/0x1d0 [mac80211]()
wlp5s0:  Failed check-sdata-in-driver check, flags: 0x0

The warning is followed by a NULL pointer dereference as follows:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000006
IP: [] rtl_get_tcb_desc+0x5e/0x760 [rtlwifi]

This problem was reported at http://thread.gmane.org/gmane.linux.kernel.wireless.general/138645,
but no solution was found at that time.

The problem was also reported at https://bugzilla.kernel.org/show_bug.cgi?id=9744
and this solution was developed and tested there.

The USB driver works with a NULL final argument in the adapter_tx() callback;
however, the PCI drivers need a struct rtl_tcb_desc in that position.

Fixes: 33511b157bbc ("rtlwifi: add support to send beacon frame.")
Signed-off-by: Luis Felipe Dominguez Vega 
Signed-off-by: Larry Finger 
Cc: Stable  [3.19+]
Signed-off-by: Kalle Valo

Merge tag 'wireless-drivers-next-for-davem-2015-06-18' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

2015-06-23T08:03:18+00:00

Kalle Valo says:

====================
Major changes:

mwifiex:

* enhancements for AP mode: support verbose information in station
  dump command and also information about AP link.
* enable power save by default

brcmfmac:

* fix module reload issue for PCIe
* improving msgbuf protocol for PCIe devices
* rework .get_station() cfg80211 callback operation
* determine interface combinations upon device feature support

ath9k:

* ath9k_htc: add support of channel switch

wil6210:

* add modparam for bcast ring size
* support hidden SSID
* add per-MCS Rx stats
====================

Signed-off-by: David S. Miller

rtlwifi: rtl8192c: Add init codes for "fw_version" and "fw_subversion".

2015-06-15T09:38:33+00:00

The variable "fw_version" is used in the _ResetDigitalProcedure1().
but It is not initialized. so I add init codes for "fw_version" and
"fw_subversion".

Signed-off-by: Taehee Yoo 
Acked-by: Larry Finger 
Signed-off-by: Kalle Valo

rtlwifi: rtl8192cu: Fix variable isfirst_ampdu

2015-06-15T09:31:42+00:00

rtl92cu_rx_query_desc set a isampdu twice.
but second code is related to isfirst_ampdu.
so i change it.

Signed-off-by: Taehee Yoo 
Signed-off-by: Kalle Valo

rtlwifi: rtl8192cu: debug message change "RTL8192CE" to "RTL8192CU"

2015-06-15T09:31:41+00:00

In the rtlwifi/rtl8192cu, I change debug message "RTL8192CE" to
"RTL8192CU".

Signed-off-by: Taehee Yoo 
Signed-off-by: Kalle Valo

rtlwifi: rtl8192cu: remove duplicated routine in _rtl92c_phy_rf6052_config_parafile

2015-06-15T09:31:39+00:00

in the _rtl92c_phy_rf6052_config_parafile(), cases
RF90_PATH_A and RF90_PATH_B call the same routine.
so i remove one of these routine. also the return
routine is duplicated. so i remove it.

Signed-off-by: Taehee Yoo 
Signed-off-by: Kalle Valo