litmus-rt.git/drivers/net/wireless/rtlwifi, branch master

rtlwifi: rtl8192cu: Fix kernel deadlock

2015-04-28T10:55:28+00:00

The USB mini-driver in rtlwifi, which is used by rtl8192cu, issues a call to
usb_control_msg() with a timeout value of 0. In some instances where the
interface is shutting down, this infinite wait results in a CPU deadlock. A
one second timeout fixes this problem without affecting any normal operations.

This bug is reported at https://bugzilla.novell.com/show_bug.cgi?id=927786.

Reported-by: Bernhard Wiedemann 
Tested-by: Bernhard Wiedemann 
Signed-off-by: Larry Finger 
Cc: Stable 
Cc: Bernhard Wiedemann 
Cc: Takashi Iwai
Signed-off-by: Kalle Valo

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2015-04-15T16:00:47+00:00

Pull networking updates from David Miller:

 1) Add BQL support to via-rhine, from Tino Reichardt.

 2) Integrate SWITCHDEV layer support into the DSA layer, so DSA drivers
    can support hw switch offloading.  From Floria Fainelli.

 3) Allow 'ip address' commands to initiate multicast group join/leave,
    from Madhu Challa.

 4) Many ipv4 FIB lookup optimizations from Alexander Duyck.

 5) Support EBPF in cls_bpf classifier and act_bpf action, from Daniel
    Borkmann.

 6) Remove the ugly compat support in ARP for ugly layers like ax25,
    rose, etc.  And use this to clean up the neigh layer, then use it to
    implement MPLS support.  All from Eric Biederman.

 7) Support L3 forwarding offloading in switches, from Scott Feldman.

 8) Collapse the LOCAL and MAIN ipv4 FIB tables when possible, to speed
    up route lookups even further.  From Alexander Duyck.

 9) Many improvements and bug fixes to the rhashtable implementation,
    from Herbert Xu and Thomas Graf.  In particular, in the case where
    an rhashtable user bulk adds a large number of items into an empty
    table, we expand the table much more sanely.

10) Don't make the tcp_metrics hash table per-namespace, from Eric
    Biederman.

11) Extend EBPF to access SKB fields, from Alexei Starovoitov.

12) Split out new connection request sockets so that they can be
    established in the main hash table.  Much less false sharing since
    hash lookups go direct to the request sockets instead of having to
    go first to the listener then to the request socks hashed
    underneath.  From Eric Dumazet.

13) Add async I/O support for crytpo AF_ALG sockets, from Tadeusz Struk.

14) Support stable privacy address generation for RFC7217 in IPV6.  From
    Hannes Frederic Sowa.

15) Hash network namespace into IP frag IDs, also from Hannes Frederic
    Sowa.

16) Convert PTP get/set methods to use 64-bit time, from Richard
    Cochran.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1816 commits)
  fm10k: Bump driver version to 0.15.2
  fm10k: corrected VF multicast update
  fm10k: mbx_update_max_size does not drop all oversized messages
  fm10k: reset head instead of calling update_max_size
  fm10k: renamed mbx_tx_dropped to mbx_tx_oversized
  fm10k: update xcast mode before synchronizing multicast addresses
  fm10k: start service timer on probe
  fm10k: fix function header comment
  fm10k: comment next_vf_mbx flow
  fm10k: don't handle mailbox events in iov_event path and always process mailbox
  fm10k: use separate workqueue for fm10k driver
  fm10k: Set PF queues to unlimited bandwidth during virtualization
  fm10k: expose tx_timeout_count as an ethtool stat
  fm10k: only increment tx_timeout_count in Tx hang path
  fm10k: remove extraneous "Reset interface" message
  fm10k: separate PF only stats so that VF does not display them
  fm10k: use hw->mac.max_queues for stats
  fm10k: only show actual queues, not the maximum in hardware
  fm10k: allow creation of VLAN on default vid
  fm10k: fix unused warnings
  ...

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2015-04-14T16:50:27+00:00

Pull trivial tree from Jiri Kosina:
 "Usual trivial tree updates.  Nothing outstanding -- mostly printk()
  and comment fixes and unused identifier removals"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  goldfish: goldfish_tty_probe() is not using 'i' any more
  powerpc: Fix comment in smu.h
  qla2xxx: Fix printks in ql_log message
  lib: correct link to the original source for div64_u64
  si2168, tda10071, m88ds3103: Fix firmware wording
  usb: storage: Fix printk in isd200_log_config()
  qla2xxx: Fix printk in qla25xx_setup_mode
  init/main: fix reset_device comment
  ipwireless: missing assignment
  goldfish: remove unreachable line of code
  coredump: Fix do_coredump() comment
  stacktrace.h: remove duplicate declaration task_struct
  smpboot.h: Remove unused function prototype
  treewide: Fix typo in printk messages
  treewide: Fix typo in printk messages
  mod_devicetable: fix comment for match_flags

rtlwifi: Add encryption argument in rtl_is_special_data for checking DHCP packet.

2015-04-07T17:09:04+00:00

rtl8192cu can't connect to AP after physical reconnect.
according to dmesg, that problem's cause was DHCP timeout.

rtl_is_special_data function checks packet type for adjusting rate.
when that function is called from _rtl_rc_get_highest_rix, it can not
calculate offset correctly. so i add argument is_encn in rtl_is_special_data.
is_enc variable mean that iv header is added in skb parameter.

i test only rtl8192cu chipset. because i doesn't have other rtlwifi chipsets.

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

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2015-04-02T20:16:53+00:00

Conflicts:
	drivers/net/usb/asix_common.c
	drivers/net/usb/sr9800.c
	drivers/net/usb/usbnet.c
	include/linux/usb/usbnet.h
	net/ipv4/tcp_ipv4.c
	net/ipv6/tcp_ipv6.c

The TCP conflicts were overlapping changes.  In 'net' we added a
READ_ONCE() to the socket cached RX route read, whilst in 'net-next'
Eric Dumazet touched the surrounding code dealing with how mini
sockets are handled.

With USB, it's a case of the same bug fix first going into net-next
and then I cherry picked it back into net.

Signed-off-by: David S. Miller

Merge tag 'wireless-drivers-next-for-davem-2015-04-01' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

2015-04-01T18:27:28+00:00

Kalle Valo says:

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

ath9k:

* add Active Interference Cancellation, a method implemented in the HW
  to counter WLAN RX > sensitivity degradation when BT is transmitting
  at the same time. This feature is supported by cards like WB222
  based on AR9462.

iwlwifi:

* Location Aware Regulatory was added by Arik
* 8000 device family work
* update to the BT Coex firmware API

brmcfmac:

* add new BCM43455 and BCM43457 SDIO device support
* add new BCM43430 SDIO device support

wil6210:

* take care of AP bridging
* fix NAPI behavior
* found approach to achieve 4*n+2 alignment of Rx frames

rt2x00:

* add new rt2800usb device DWA 130

rtlwifi:

* add USB ID for D-Link DWA-131
* add USB ID ASUS N10 WiFi dongle

mwifiex:

* throughput enhancements
====================

Signed-off-by: David S. Miller

rtlwifi: rtl8192cu: Add new device ID

2015-03-30T08:38:25+00:00

Add new ID for ASUS N10 WiFi dongle.

Signed-off-by: Marek Vasut 
Tested-by: Marek Vasut 
Cc: Larry Finger 
Cc: John W. Linville 
Acked-by: Larry Finger 
Signed-off-by: Kalle Valo

rtlwifi: rtl8192cu: Add new USB ID

2015-03-30T08:37:38+00:00

USB ID 2001:330d is used for a D-Link DWA-131.

Signed-off-by: Larry Finger 
Cc: Stable 
Signed-off-by: Kalle Valo

rtlwifi: Change REG_CR+2 to MSR

2015-03-30T08:30:07+00:00

I changed REG_CR+2 and (MSR) to MSR because MSR is defined as (REG_CR + 2).

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

rtlwifi: Fix IOMMU mapping leak in AP mode

2015-03-22T05:52:25+00:00

Transmission of an AP beacon does not call the TX interrupt service routine,
which usually does the cleanup. Instead, cleanup is handled in a tasklet
completion routine. Unfortunately, this routine has a serious bug in that it does
not release the DMA mapping before it frees the skb, thus one IOMMU mapping is
leaked for each beacon. The test system failed with no free IOMMU mapping slots
approximately one hour after hostapd was used to start an AP.

This issue was reported and tested at https://github.com/lwfinger/rtlwifi_new/issues/30.

Reported-and-tested-by: Kevin Mullican 
Cc: Kevin Mullican 
Signed-off-by: Shao Fu 
Signed-off-by: Larry Finger 
Cc: Stable   [3.18+]
Signed-off-by: Kalle Valo