Commit graph

352837 commits

Author SHA1 Message Date
Dmitry Kravkov
aa0e51cdda ip_gre: allow CSUM capable devices to handle packets
If device is not able to handle checksumming it will
be handled in dev_xmit

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:51:09 -05:00
nikolay@redhat.com
e0809dbc47 bonding: Fix initialize after use for 3ad machine state spinlock
The 3ad machine state spinlock can be used before it is inititialized
while doing bond_enslave() (and the port is being initialized) since
port->slave is set before the lock is prepared, thus causing soft
lock-ups and a multitude of other nasty bugs.

[ Rename __initialize_port_locks() variable name to 'slave' -DaveM ]

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:51:08 -05:00
nikolay@redhat.com
b59340c2c0 bonding: Fix race condition between bond_enslave() and bond_3ad_update_lacp_rate()
port->slave can be NULL since it's being initialized in bond_enslave
thus dereferencing a NULL pointer in bond_3ad_update_lacp_rate()
Also fix a minor bug, which could cause a port not to have
AD_STATE_LACP_TIMEOUT since there's no sync between
bond_3ad_update_lacp_rate() and bond_3ad_bind_slave(), by changing
the read_lock to a write_lock_bh in bond_3ad_update_lacp_rate().

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:51:08 -05:00
Larry Finger
ccae0e50c1 b43: Increase number of RX DMA slots
Bastian Bittorf reported that some of the silent freezes on a Linksys WRT54G
were due to overflow of the RX DMA ring buffer, which was created with 64
slots. That finding reminded me that I was seeing similar crashed on a netbook,
which also has a relatively slow processor. After increasing the number of
slots to 128, runs on the netbook that previously failed now worked; however,
I found that 109 slots had been used in one test. For that reason, the number
of slots is being increased to 256.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Bastian Bittorf <bittorf@bluebottle.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:51:08 -05:00
Jitendra Kalsaria
b0daa81b6a qlcnic: Bump up the version to 5.1.34
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:47:01 -05:00
Shahed Shaikh
53643a75b1 qlcnic: fix ping resumption to a VM after a live migration
Delete the MAC address of a VM, from the adapter's embedded switch,
after the VM had been migrated out of this adapter/server.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:47:01 -05:00
Shahed Shaikh
99e8587900 qlcnic: fix estimation of receive MSS in case of LRO for 83xx adapter
Set gso_size to MSS obtained from adapter to avoid incorrect estimation
of receive MSS, which would lead to delayed ACKs in some traffic patterns

Example:
Send two or three packets and wait for ack and only then send
remaining packets.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:47:01 -05:00
Himanshu Madhani
ac16670099 qlcnic: refactor Legacy interrupt handling for 83xx
o Cleanly seperate 83xx Legacy interrupt handling code from 82xx
o Update 83xx Legacy interrupt handling code to match with the spec

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:47:01 -05:00
Sucheta Chakraborty
7dd90cf171 qlcnic: fix mailbox interrupt.
o Config interrupt is not needed for mailbox interrupts.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:47:01 -05:00
Jitendra Kalsaria
114ef38ade qlcnic: fix unsupported CDRP command error message.
Added detailed error messages for FW CDRP command failure

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-19 00:47:01 -05:00
David S. Miller
2ccba5433b Merge branch 'master' of git://1984.lsi.us.es/nf-next
Pablo Neira Ayuso says:

====================
The following patchset contain updates for your net-next tree, they are:

* Fix (for just added) connlabel dependencies, from Florian Westphal.

* Add aliasing support for conntrack, thus users can either use -m state
  or -m conntrack from iptables while using the same kernel module, from
  Jozsef Kadlecsik.

* Some code refactoring for the CT target to merge common code in
  revision 0 and 1, from myself.

* Add aliasing support for CT, based on patch from Jozsef Kadlecsik.

* Add one mutex per nfnetlink subsystem, from myself.

* Improved logging for packets that are dropped by helpers, from myself.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 23:42:09 -05:00
David S. Miller
6338a53a2b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net into net
Pull in 'net' to take in the bug fixes that didn't make it into
3.8-final.

Also, deal with the semantic conflict of the change made to
net/ipv6/xfrm6_policy.c   A missing rt6->n neighbour release
was added to 'net', but in 'net-next' we no longer cache the
neighbour entries in the ipv6 routes so that change is not
appropriate there.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 23:34:21 -05:00
Pablo Neira Ayuso
b20ab9cc63 netfilter: nf_ct_helper: better logging for dropped packets
Connection tracking helpers have to drop packets under exceptional
situations. Currently, the user gets the following logging message
in case that happens:

	nf_ct_%s: dropping packet ...

However, depending on the helper, there are different reasons why a
packet can be dropped.

This patch modifies the existing code to provide more specific
error message in the scope of each helper to help users to debug
the reason why the packet has been dropped, ie:

	nf_ct_%s: dropping packet: reason ...

Thanks to Joe Perches for many formatting suggestions.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2013-02-19 02:48:05 +01:00
Linus Torvalds
19f949f525 Linux 3.8 2013-02-18 15:58:34 -08:00
Rafael J. Wysocki
10baf04e95 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (35 commits)
  PM idle: remove global declaration of pm_idle
  unicore32 idle: delete stray pm_idle comment
  openrisc idle: delete pm_idle
  mn10300 idle: delete pm_idle
  microblaze idle: delete pm_idle
  m32r idle: delete pm_idle, and other dead idle code
  ia64 idle: delete pm_idle
  cris idle: delete idle and pm_idle
  ARM64 idle: delete pm_idle
  ARM idle: delete pm_idle
  blackfin idle: delete pm_idle
  sparc idle: rename pm_idle to sparc_idle
  sh idle: rename global pm_idle to static sh_idle
  x86 idle: rename global pm_idle to static x86_idle
  APM idle: register apm_cpu_idle via cpuidle
  tools/power turbostat: display SMI count by default
  intel_idle: export both C1 and C1E
  cpuidle: remove vestage definition of cpuidle_state_usage.driver_data
  x86 idle: remove 32-bit-only "no-hlt" parameter, hlt_works_ok flag
  x86 idle: remove mwait_idle() and "idle=mwait" cmdline param
  ...

Conflicts:
	arch/x86/kernel/process.c (with PM / tracing commit 43720bd)
	drivers/acpi/processor_idle.c (with ACPICA commit 4f84291)
2013-02-18 22:34:11 +01:00
Chris Metcalf
36a5df85e9 genirq: Export enable/disable_percpu_irq()
These functions are used by the tilegx onchip network driver, and it's
useful to be able to load that driver as a module.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Link: http://lkml.kernel.org/r/201302012043.r11KhNZF024371@farm-0021.internal.tilera.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2013-02-18 21:42:25 +01:00
Kumar Amit Mehta
b53cf458ea net: wireless: hostap: hostap_ap.c: Return -ENOMEM instead of -1 for if kmalloc() fails.
When memory allocation using, kmalloc() fails, report appropriate error value.

Signed-off-by: Kumar Amit Mehta <gmate.amit@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-18 15:30:40 -05:00
Kumar Amit Mehta
488ec87803 net: wireless: orinoco: orinoco_usb.c: fix DMA buffers on stack
This patch fixes an instance of DMA buffer on stack(being passed to
usb_control_msg) for the wireless USB version of the Agere Orinoco card driver.
It also fixes the missing audit for the return value of firmware download
routine. Found using smatch.

Signed-off-by: Kumar Amit Mehta <gmate.amit@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-18 15:30:40 -05:00
Jussi Kivilinna
bc6b89237a rtlwifi: usb: allocate URB control message setup_packet and data buffer separately
rtlwifi allocates both setup_packet and data buffer of control message urb,
using shared kmalloc in _usbctrl_vendorreq_async_write. Structure used for
allocating is:
	struct {
		u8 data[254];
		struct usb_ctrlrequest dr;
	};

Because 'struct usb_ctrlrequest' is __packed, setup packet is unaligned and
DMA mapping of both 'data' and 'dr' confuses ARM/sunxi, leading to memory
corruptions and freezes.

Patch changes setup packet to be allocated separately.

[v2]:
 - Use WARN_ON_ONCE instead of WARN_ON

Cc: <stable@vger.kernel.org>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-18 15:30:40 -05:00
Yogesh Ashok Powar
a5f390562a mwifiex: add 802.11AC support
For STA mode, collect VHT realated IEs from the Beacons or Probe
Responses and append similar VHT related IEs to association
requests.

For AP mode, get VHT related capability information and share it
with cfg80211 at the time of wiphy register. This information is
further used by cfg80211 and hostapd to start an AP with 802.11AC
support.

Currently only 8897 supports 802.11AC.

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Nishant Sarmukadam <nishants@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Frank Huang <frankh@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-18 15:30:39 -05:00
Yogesh Ashok Powar
073c9e6f86 mwifiex: coding style cleanup in bss parameter update
They all can make one line.

Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-18 15:30:39 -05:00
Avinash Patil
3d48203847 mwifiex: fix empty TX ring check for PCIe8897 while unloading driver
While unloading driver, we free all pending TX packets by flushing
TX ring. There is unhandled case for PCIE8897 while checking for
ring empty condition.

This patch adds the handling by calling mwifiex_pcie_txbd_empty().

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-18 15:30:39 -05:00
Eric Dumazet
8064b3cf75 ipv6: fix a sparse warning
net/ipv6/reassembly.c:82:72: warning: incorrect type in argument 3 (different base types)
net/ipv6/reassembly.c:82:72:    expected unsigned int [unsigned] [usertype] c
net/ipv6/reassembly.c:82:72:    got restricted __be32 [usertype] id

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 15:28:00 -05:00
John W. Linville
a9908ebf5c Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2013-02-18 15:27:42 -05:00
David S. Miller
40d1ae57a0 Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
John W. Linville says:

====================
This probably is the last big pull request for wireless bits
for 3.9.  Of course, I'm sure there will be a few stragglers here
and there...surely a few bug fixes as well... :-) (In fact, I see
that Johannes has already queued-up a few more for me while I was
preparing this...)

Included are a number of pulls...

For mac80211-next, Johannes says:

"The biggest change I have is undoubtedly Marco's mesh powersave
implementation. Beyond that, I have a patch from Emmanuel to modify the
DTIM period API in mac80211, scan improvements and a removal of some
previous workaround code from Stanislaw, dynamic short slot time from
Thomas and 64-bit station byte counters from Vladimir. I also made a
number of changes myself, some related to WoWLAN, some auth/deauth
improvements and most of them BSS list cleanups."

"This time, I have relatively large number of fixes in various areas of
the code (a memory leak in regulatory, an RX race in mac80211, the new
radar checking caused a P2P device problem, some mesh issues with
stations, an older bug in tracing and for kernel-doc) as well as a
number of small new features. The biggest (in the diffstat) is my work
on hidden SSID tracking."

"Please pull to get
 * radar detection work from Simon
 * mesh improvements from Thomas
 * a connection monitoring/powersave fix from Wojciech
 * TDLS-related station management work from Jouni
 * VLAN crypto fixes from Michael Braun
 * CCK support in minstrel_ht from Felix
 * an SMPS (not SMSP, oops) related improvement in mac80211 (Emmanuel)
 * some WoWLAN work from Amitkumar Karwar: pattern match offset and a
   documentation fix
 * some WoWLAN work from myself (TCP connection wakeup feature API)
 * and a lot of VHT (and some HT) work (also from myself)

And a number of more random cleanups/fixes. I merged mac80211/master to
avoid a merge problem there."

And regarding iwlwifi-next, Johannes says:

"We continue work on our new driver, but I also have a WoWLAN and AP mode
improvement for the previous driver and a change to use threaded
interrupts to prepare us for working with non-PCIe devices."

Regarding wl12xx, Luca says:

"A few more patches intended for 3.9.  Mostly some clean-ups I've been
doing to make it easier to support device-tree.  Also including one bug
fix for wl12xx where the rates we advertise were wrong and an update in
the wlconf structure to support newer firmwares."

For the nfc-next bits, Samuel says:

"This is the second NFC pull request for 3.9.

We have:

- A few pn533 fixes on top of Waldemar refactorization of the driver, one of
  them fixes target mode.

- A new driver for Inside Secure microread chipset. It supports two
  physical layers: i2c and MEI. The MEI one depends on a patchset that's
  been sent to Greg Kroah-Hartman for inclusion into the 3.9 kernel [1]. The
  dependency is a KConfig one which means this code is not buildable as long
  as the MEI API is not usptream."

"This 3rd NFC pull request for 3.9 contains a fix for the microread MEI
physical layer support, as the MEI bus API changed.

From the MEI code, we now pass the MEI id back to the driver probe routine,
and we also pass a name and a MEI id table through the mei_bus_driver
structure. A few renames as well like e.g. mei_bus_driver to mei_driver or
mei_bus_client to mei_device in order to be closer to the driver model
practices."

For the ath6kl bits, Kalle says:

"There's not anything special here, most of the patches are just code
cleanup. The only functional changes are using the beacon interval from user
space and fixing a crash which happens when inserting and removing the
module in a loop."

Also, I pulled the wireless tree in order to resolve some pending
merge issues.  On top of that, there is a bunch of work on brcmfmac
that leads up to P2P support.  Also, mwifiex, rtlwifi, and a variety
of other drivers see some basic cleanups and minor enhancements.

Please let me know if there are problems!
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 15:12:07 -05:00
Andy King
6cf1c5fc26 VSOCK: Don't reject PF_VSOCK protocol
Allow our own family as the protocol value for socket creation.

Reported-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Andy King <acking@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 15:02:51 -05:00
Andy King
5b8ca5344f VSOCK: Remove hypervisor-only socket option
Remove hypervisor-only socket option.

Reported-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Andy King <acking@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 15:02:51 -05:00
Dmitry Torokhov
7ccd7de691 VSOCK: get rid of vsock_version.h
There isn't really a need to have a separate file for it.

Acked-by: Andy King <acking@vmware.com>
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 15:02:51 -05:00
Dmitry Torokhov
7777ac3860 VSOCK: get rid of EXPORT_SYMTAB
This is the default behavior for a looooooong time.

Acked-by: Andy King <acking@vmware.com>
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 15:02:51 -05:00
Romain KUNTZ
18cf0d0784 xfrm: release neighbor upon dst destruction
Neighbor is cloned in xfrm6_fill_dst but seems to never be released.
Neighbor entry should be released when XFRM6 dst entry is destroyed
in xfrm6_dst_destroy, otherwise references may be kept forever on
the device pointed by the neighbor entry.

I may not have understood all the subtleties of XFRM & dst so I would
be happy to receive comments on this patch.

Signed-off-by: Romain Kuntz <r.kuntz@ipflavors.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 14:57:29 -05:00
Gao feng
c2399059a3 net: proc: remove proc_net_remove
proc_net_remove has been replaced by remove_proc_entry.
we can remove it now.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 14:53:08 -05:00
Gao feng
ece31ffd53 net: proc: change proc_net_remove to remove_proc_entry
proc_net_remove is only used to remove proc entries
that under /proc/net,it's not a general function for
removing proc entries of netns. if we want to remove
some proc entries which under /proc/net/stat/, we still
need to call remove_proc_entry.

this patch use remove_proc_entry to replace proc_net_remove.
we can remove proc_net_remove after this patch.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 14:53:08 -05:00
Gao feng
b4278c961a net: proc: remove proc_net_fops_create
proc_net_fops_create has been replaced by proc_create,
we can remove it now.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 14:53:08 -05:00
Gao feng
d4beaa66ad net: proc: change proc_net_fops_create to proc_create
Right now, some modules such as bonding use proc_create
to create proc entries under /proc/net/, and other modules
such as ipv4 use proc_net_fops_create.

It looks a little chaos.this patch changes all of
proc_net_fops_create to proc_create. we can remove
proc_net_fops_create after this patch.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 14:53:08 -05:00
Mugunthan V N
510a1e7249 drivers: net: davinci_cpdma: acknowledge interrupt properly
CPDMA interrupts are not properly acknowledged which leads to interrupt
storm, only cpdma interrupt 0 is acknowledged in Davinci CPDMA driver.
Changed cpdma_ctlr_eoi api to acknowledge 1 and 2 interrupts which are
used for rx and tx respectively.

Reported-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 14:51:50 -05:00
Emmanuel Grumbach
cfe418287c iwlwifi: dvm: improve (again) the prints in reclaim path
I removed a bit too much info last time.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-18 20:19:25 +01:00
Eytan Lifshitz
3104ba151e iwlwifi: dvm: fix delayed enter to CT-kill bug
Theoretically, the card may not enter CTKILL:
In case the timer that iwl_prepare_ct_kill_task is setting,
will expire before tt->state revert to its previous state.

Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-18 20:19:01 +01:00
Ilan Peer
ec8b6885b5 iwlwifi: mvm: Reserve MAC id 0 for managed interfaces
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-18 20:18:48 +01:00
Ilan Peer
1e849c93ee iwlwifi: mvm: Fix resource allocation for P2P Device
The time event data structures are required also for P2P Device
interface.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-18 20:18:35 +01:00
Ilan Peer
d91b06d214 iwlwifi: mvm: Set the scan type according to the vif type
The FW can differentiate between scans, according to the interface
type on which the scan was issues. Supply the interfaces type
information to the FW.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-18 20:18:20 +01:00
Johannes Berg
e372282241 iwlwifi: mvm: fix time event command handling race
Occasionally, we would run into this warning:

  iwlwifi 0000:02:00.0: U iwl_mvm_protect_session extend 0x2601: only 200 ms left
  iwlwifi 0000:02:00.0: U iwl_mvm_remove_time_event Removing TE 0x2601
  iwlwifi 0000:02:00.0: I iwl_pcie_enqueue_hcmd Sending command TIME_EVENT_CMD (#29), seq: 0x0925, 60 bytes at 37[5]:9
  iwlwifi 0000:02:00.0: U iwl_pcie_send_hcmd_sync Attempting to send sync command TIME_EVENT_CMD
  iwlwifi 0000:02:00.0: U iwl_pcie_send_hcmd_sync Setting HCMD_ACTIVE for command TIME_EVENT_CMD
  iwlwifi 0000:02:00.0: I iwl_pcie_enqueue_hcmd Sending command TIME_EVENT_CMD (#29), seq: 0x0926, 60 bytes at 38[6]:9
  iwlwifi 0000:02:00.0: U iwl_mvm_time_event_response TIME_EVENT_CMD response - UID = 0x2601
  iwlwifi 0000:02:00.0: I iwl_pcie_hcmd_complete Clearing HCMD_ACTIVE for command TIME_EVENT_CMD
  iwlwifi 0000:02:00.0: U iwl_mvm_rx_time_event_notif Time event notification - UID = 0x2701 action 1
  wlan0: associate with 00:0a:b8:55:a8:30 (try 2/3)
  ------------[ cut here ]------------
  WARNING: at drivers/net/wireless/iwlwifi/mvm/time-event.c:269 iwl_mvm_time_event_send_add+0x163/0x1a0 [iwlmvm]()
  Modules linked in: [...]
  Call Trace:
   [<c1046e42>] warn_slowpath_common+0x72/0xa0
   [<c1046e92>] warn_slowpath_null+0x22/0x30
   [<f8cad913>] iwl_mvm_time_event_send_add+0x163/0x1a0 [iwlmvm]
   [<f8cadead>] iwl_mvm_protect_session+0xcd/0x1c0 [iwlmvm]
   [<f8ca2087>] iwl_mvm_mac_mgd_prepare_tx+0x67/0xa0 [iwlmvm]
   [<f882a130>] ieee80211_sta_work+0x8f0/0x1070 [mac80211]

The reason is a problem with asynchronous vs. synchronous
commands, what happens here is the following:
 * TE 0x2601 is removed, the TIME_EVENT_CMD for that is async
 * a new TE (will be 0x2701) is created, the TIME_EVENT_CMD
   for that is sync and also uses a notification wait for the
   response (to avoid another race condition)
 * the response for the TE 0x2601 removal comes from the
   firmware, and is handled by the notification wait handler
   that's really waiting for the second response, but can't
   tell the difference, we therefore see the message
   "TIME_EVENT_CMD response - UID = 0x2601" instead of
   "TIME_EVENT_CMD response - UID = 0x2701".

Fix this issue by making the TE removal synchronous as well,
this means that we wait for the response to that command
first, before there's any chance of sending a new one.

Also, to detect such issues more easily in the future, add
a warning to the notification handler that detects them.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-18 20:18:07 +01:00
Johannes Berg
93630dc3ef iwlwifi: mvm: add debug statement to time event add
This is helpful for debugging the time event warning,
but also in general to see what's going on.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-18 20:17:57 +01:00
Johannes Berg
9cc40712a0 iwlwifi: mvm: fix GO powersave client manipulation
All station commands must include a valid MAC ID,
the ID 0 is randomly valid in some cases, but we
must set the ID properly. Do that by passing the
right station and using its mac_id_n_color.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-18 20:17:48 +01:00
Johannes Berg
d2931bbd54 iwlwifi: mvm: program DTIM timings properly
For the firmware to know when DTIM beacons arrive
we have to program the DTIM time in TSF and system
time in the MAC context. Since mac80211 now tracks
the different times (on demand), this becomes easy.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-18 20:17:38 +01:00
Johannes Berg
b18bf9733c iwlwifi: mvm: fix merge error
The iwlwifi-next tree removed IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC
while the mac80211-next tree removed

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-18 20:16:26 +01:00
Johannes Berg
e9b89fcc1f Merge remote-tracking branch 'wireless-next/master' into iwlwifi-next 2013-02-18 20:16:12 +01:00
John W. Linville
98d5fac233 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts:
	drivers/net/wireless/iwlwifi/dvm/tx.c
	drivers/net/wireless/ti/wlcore/sdio.c
	drivers/net/wireless/ti/wlcore/spi.c
2013-02-18 13:47:13 -05:00
Linus Torvalds
e9cf59aeee Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem fixes from Dmitry Torokhov:
 "Two small driver fixups and a documentation update for managed input
  devices"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: wacom - fix wacom_set_report retry logic
  Input: document that unregistering managed devices is not necessary
  Input: lm8323 - fix checking PWM interrupt status
2013-02-18 10:23:40 -08:00
Jiri Pirko
dca9ab9274 MAINTAINERS: Jiri Pirko email change
Change email for team driver maintainership.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-02-18 13:12:30 -05:00
Linus Torvalds
7c45512df9 mm: fix pageblock bitmap allocation
Commit c060f943d0 ("mm: use aligned zone start for pfn_to_bitidx
calculation") fixed out calculation of the index into the pageblock
bitmap when a !SPARSEMEM zome was not aligned to pageblock_nr_pages.

However, the _allocation_ of that bitmap had never taken this alignment
requirement into accout, so depending on the exact size and alignment of
the zone, the use of that index could then access past the allocation,
resulting in some very subtle memory corruption.

This was reported (and bisected) by Ingo Molnar: one of his random
config builds would hang with certain very specific kernel command line
options.

In the meantime, commit c060f943d0 has been marked for stable, so this
fix needs to be back-ported to the stable kernels that backported the
commit to use the right alignment.

Bisected-and-tested-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-02-18 09:58:02 -08:00