287794 Commits

Author SHA1 Message Date
Benjamin Herrenschmidt
54321242af powerpc: Disable interrupts early in Program Check
Program Check exceptions are the result of WARNs, BUGs, some
type of breakpoints, kprobe, and other illegal instructions.

We want interrupts (and thus preemption) to remain disabled
while doing the initial stage of testing the reason and
branching off to a debugger or kprobe, so we are still on
the original CPU which makes debugging easier in various cases.

This is how the code was intended, hence the local_irq_enable()
right in the middle of program_check_exception().

However, the assembly exception prologue for that exception was
incorrectly marked as enabling interrupts, which defeats that
(and records a redundant enable with lockdep).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-16 16:15:10 +11:00
Stephen Rothwell
a1a1d1bfc9 powerpc: Remove legacy iSeries from ppc64_defconfig
Since we are heading towards removing the Legacy iSeries platform, start
by no longer building it for ppc64_defconfig.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-16 16:15:08 +11:00
Benjamin Herrenschmidt
13635dfdc6 powerpc/fsl/pci: Fix PCIe fixup regression
Upstream changes to the way PHB resources are registered
broke the resource fixup for FSL boards.

We can no longer rely on the resource pointer array for the PHB's
pci_bus structure, so let's leave it alone and go straight for
the PHB resources instead. This also makes the code generally
more readable.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-16 16:15:03 +11:00
Ira Snyder
40c8cefaaf powerpc: Fix kernel log of oops/panic instruction dump
A kernel oops/panic prints an instruction dump showing several
instructions before and after the instruction which caused the
oops/panic.

The code intended that the faulting instruction be enclosed in angle
brackets, however a bug caused the faulting instruction to be
interpreted by printk() as the message log level.

To fix this, the KERN_CONT log level is added before the actual text of
the printed message.

=== Before the patch ===

[ 1081.587266] Instruction dump:
[ 1081.590236] 7c000110 7c0000f8 5400077c 552907f6 7d290378 992b0003 4e800020 38000001
[ 1081.598034] 3d20c03a 9009a114 7c0004ac 39200000
[ 1081.602500]  4e800020 3803ffd0 2b800009

<4>[ 1081.587266] Instruction dump:
<4>[ 1081.590236] 7c000110 7c0000f8 5400077c 552907f6 7d290378 992b0003 4e800020 38000001
<4>[ 1081.598034] 3d20c03a 9009a114 7c0004ac 39200000
<98090000>[ 1081.602500]  4e800020 3803ffd0 2b800009

=== After the patch ===

[   51.385216] Instruction dump:
[   51.388186] 7c000110 7c0000f8 5400077c 552907f6 7d290378 992b0003 4e800020 38000001
[   51.395986] 3d20c03a 9009a114 7c0004ac 39200000 <98090000> 4e800020 3803ffd0 2b800009

<4>[   51.385216] Instruction dump:
<4>[   51.388186] 7c000110 7c0000f8 5400077c 552907f6 7d290378 992b0003 4e800020 38000001
<4>[   51.395986] 3d20c03a 9009a114 7c0004ac 39200000 <98090000> 4e800020 3803ffd0 2b800009

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-02-16 16:11:23 +11:00
Alexey Dobriyan
f2ea0f5f04 crypto: sha512 - use standard ror64()
Use standard ror64() instead of hand-written.
There is no standard ror64, so create it.

The difference is shift value being "unsigned int" instead of uint64_t
(for which there is no reason). gcc starts to emit native ROR instructions
which it doesn't do for some reason currently. This should make the code
faster.

Patch survives in-tree crypto test and ping flood with hmac(sha512) on.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-02-16 12:12:33 +08:00
Jan Weitzel
6c23e41322 net/ethernet: ks8851_mll fix irq handling
There a two different irq variables ks->irq and netdev->irq.
Only ks->irq is set on probe, so disabling irq in ks_start_xmit fails.

This patches remove ks->irq from private data and use only netdev->irq.

Tested on a kernel 3.0 based OMAP4430 SMP Board

Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-15 15:41:10 -05:00
Thomas Graf
237114384a veth: Enforce minimum size of VETH_INFO_PEER
VETH_INFO_PEER carries struct ifinfomsg plus optional IFLA
attributes. A minimal size of sizeof(struct ifinfomsg) must be
enforced or we may risk accessing that struct beyond the limits
of the netlink message.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-15 14:59:20 -05:00
Giuseppe CAVALLARO
78a5249fc9 stmmac: update the driver version to Feb 2012 (v2)
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-15 14:52:10 -05:00
Giuseppe CAVALLARO
cf3f047b9a stmmac: move hw init in the probe (v2)
This patch moves the MAC HW initialization and
the HW feature verification from the open to the probe
function as D. Miller suggested.
So the patch actually reorganizes and tidies-up some parts of
the driver and indeed fixes some problem when tune its HW features.
These can be overwritten by looking at the HW cap register at
run-time and that generated problems.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Reviewed-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-15 14:52:10 -05:00
Francesco Virlinzi
7a13f8f5b6 stmmac: request_irq when use an ext wake irq line (v2)
In case of we use an external Wake-Up IRQ line
(priv->wol_irq != dev->irq) we need to invoke the
request_irq.

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-15 14:52:10 -05:00
Giuseppe CAVALLARO
1cc5a73518 stmmac: do not discard frame on dribbling bit assert
If this bit is set and the CRC error is reset, then the packet is valid.
Only report this as stat info.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-15 14:52:10 -05:00
Tim Gardner
72ba009b8a ipheth: Add iPhone 4S
BugLink: http://bugs.launchpad.net/bugs/900802

Cc: stable@vger.kernel.org 3.2+
Signed-off-by: Till Kamppeter <till.kamppeter@gmail.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-15 14:50:16 -05:00
Eugenia Emantayev
9f5b6c632e mlx4: add unicast steering entries to resource_tracker
Add unicast steering entries to resource tracker.
Do qp_detach also for these entries when VF doesn't shut down gracefully.
Otherwise there is leakage of these resources, since they are not tracked.

Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il>
Reviewed-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-15 14:50:16 -05:00
Eugenia Emantayev
2531188b47 mlx4: fix QP tree trashing
When adding new unicast steer entry, before moving qp to state ready,
actually before calling mlx4_RST2INIT_QP_wrapper(), there were added
a lot of entries with local_qpn=0 into radix tree.
This fact impacted the get_res() function and proper functioning
of resource tracker in addition to adding trash entries into radix tree.

Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il>
Reviewed-by: Yevgeny Petrilin <yevgenyp@melllanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-15 14:50:16 -05:00
Eugenia Emantayev
75c6062cb7 mlx4: fix buffer overrun
When passing MLX4_UC_STEER=1 it was translated to value 2
after mlx4_QP_ATTACH_wrapper. Therefore in new_steering_entry()
unicast steer entries were added to index 2 of array of size 2.
Fixing this bug by shift right to one position.

Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il>
Reviewed-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-15 14:50:15 -05:00
Pavel Roskin
2504a6423b ath9k: stop on rates with idx -1 in ath9k rate control's .tx_status
Rate control algorithms are supposed to stop processing when they
encounter a rate with the index -1.  Checking for rate->count not being
zero is not enough.

Allowing a rate with negative index leads to memory corruption in
ath_debug_stat_rc().

One consequence of the bug is discussed at
https://bugzilla.redhat.com/show_bug.cgi?id=768639

Signed-off-by: Pavel Roskin <proski@gnu.org>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-15 13:56:15 -05:00
Amitkumar Karwar
6670f15b1f mwifiex: clear previous security setting during association
Driver maintains different flags for WEP, WPA, WPA2 security modes.
Appropriate flag is set using security information provided in
connect request. mwifiex_is_network_compatible() routine uses them
to check if driver's setting is compatible with AP. Association is
aborted if the routine fails.

For some corner cases, it is observed that association is failed
even for valid security information based on association history.
This patch fixes the problem by clearing previous security setting
during each association.

We should set WEP key provided in connect request as default tx key.
This missing change is also added here.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-15 13:56:15 -05:00
Felix Fietkau
216c57b214 mac80211: do not call rate control .tx_status before .rate_init
Most rate control implementations assume .get_rate and .tx_status are only
called once the per-station data has been fully initialized.
minstrel_ht crashes if this assumption is violated.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Tested-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-15 13:56:06 -05:00
Johannes Berg
4b5a433ae5 mac80211: call rate control only after init
There are situations where we don't have the
necessary rate control information yet for
station entries, e.g. when associating. This
currently doesn't really happen due to the
dummy station handling; explicitly disabling
rate control when it's not initialised will
allow us to remove dummy stations.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-15 13:56:06 -05:00
John W. Linville
33b5d30cd8 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2012-02-15 13:41:52 -05:00
Lars-Peter Clausen
61cddc57dc regmap: Fix cache defaults initialization from raw cache defaults
Currently registers with a value of 0 are ignored when initializing the register
defaults from raw defaults. This worked in the past, because registers without a
explicit default were assumed to have a default value of 0. This was changed in
commit b03622a8 ("regmap: Ensure rbtree syncs registers set to zero properly").
As a result registers, which have a raw default value of 0 are now assumed to
have no default. This again can result in unnecessary writes when syncing the
cache. It will also result in unnecessary reads for e.g. the first update
operation. In the case where readback is not possible this will even let the
update operation fail, if the register has not been written to before.

So this patch removes the check. Instead it adds a check to ignore raw defaults
for registers which are volatile, since those registers are not cached.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
2012-02-15 08:31:32 -08:00
Linus Torvalds
c38e234562 i387: fix sense of sanity check
The check for save_init_fpu() (introduced in commit 5b1cbac37798: "i387:
make irq_fpu_usable() tests more robust") was the wrong way around, but
I hadn't noticed, because my "tests" were bogus: the FPU exceptions are
disabled by default, so even doing a divide by zero never actually
triggers this code at all unless you do extra work to enable them.

So if anybody did enable them, they'd get one spurious warning.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-15 08:05:18 -08:00
Ulisses Furquim
24d2b8c0ac Bluetooth: Fix possible use after free in delete path
We need to use the _sync() version for cancelling the info and security
timer in the L2CAP connection delete path. Otherwise the delayed work
handler might run after the connection object is freed.

Signed-off-by: Ulisses Furquim <ulisses@profusion.mobi>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-15 13:09:26 +02:00
Ulisses Furquim
6de3275082 Bluetooth: Remove usage of __cancel_delayed_work()
__cancel_delayed_work() is being used in some paths where we cannot
sleep waiting for the delayed work to finish. However, that function
might return while the timer is running and the work will be queued
again. Replace the calls with safer cancel_delayed_work() version
which spins until the timer handler finishes on other CPUs and
cancels the delayed work.

Signed-off-by: Ulisses Furquim <ulisses@profusion.mobi>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-15 13:09:26 +02:00
Manoj Iyer
403f048a57 Bluetooth: btusb: Add vendor specific ID (0a5c 21f3) for BCM20702A0
T: Bus=01 Lev=02 Prnt=02 Port=03 Cnt=03 Dev#= 5 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=0a5c ProdID=21f3 Rev=01.12
S: Manufacturer=Broadcom Corp
S: Product=BCM20702A0
S: SerialNumber=74DE2B344A7B
C: #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr=0mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
I: If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=(none)
I: If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
I: If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none)

Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com>
Tested-by: Dennis Chua <dennis.chua@canonical.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-15 13:09:26 +02:00
Johan Hedberg
ca0d6c7ece Bluetooth: Add missing QUIRK_NO_RESET test to hci_dev_do_close
We should only perform a reset in hci_dev_do_close if the
HCI_QUIRK_NO_RESET flag is set (since in such a case a reset will not be
performed when initializing the device).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-02-15 13:09:26 +02:00
Octavian Purdila
cf33e77b76 Bluetooth: Fix RFCOMM session reference counting issue
There is an imbalance in the rfcomm_session_hold / rfcomm_session_put
operations which causes the following crash:

[  685.010159] BUG: unable to handle kernel paging request at 6b6b6b6b
[  685.010169] IP: [<c149d76d>] rfcomm_process_dlcs+0x1b/0x15e
[  685.010181] *pdpt = 000000002d665001 *pde = 0000000000000000
[  685.010191] Oops: 0000 [#1] PREEMPT SMP
[  685.010247]
[  685.010255] Pid: 947, comm: krfcommd Tainted: G         C  3.0.16-mid8-dirty #44
[  685.010266] EIP: 0060:[<c149d76d>] EFLAGS: 00010246 CPU: 1
[  685.010274] EIP is at rfcomm_process_dlcs+0x1b/0x15e
[  685.010281] EAX: e79f551c EBX: 6b6b6b6b ECX: 00000007 EDX: e79f40b4
[  685.010288] ESI: e79f4060 EDI: ed4e1f70 EBP: ed4e1f68 ESP: ed4e1f50
[  685.010295]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[  685.010303] Process krfcommd (pid: 947, ti=ed4e0000 task=ed43e5e0 task.ti=ed4e0000)
[  685.010308] Stack:
[  685.010312]  ed4e1f68 c149eb53 e5925150 e79f4060 ed500000 ed4e1f70 ed4e1f80 c149ec10
[  685.010331]  00000000 ed43e5e0 00000000 ed4e1f90 ed4e1f9c c149ec87 0000bf54 00000000
[  685.010348]  00000000 ee03bf54 c149ec37 ed4e1fe4 c104fe01 00000000 00000000 00000000
[  685.010367] Call Trace:
[  685.010376]  [<c149eb53>] ? rfcomm_process_rx+0x6e/0x74
[  685.010387]  [<c149ec10>] rfcomm_process_sessions+0xb7/0xde
[  685.010398]  [<c149ec87>] rfcomm_run+0x50/0x6d
[  685.010409]  [<c149ec37>] ? rfcomm_process_sessions+0xde/0xde
[  685.010419]  [<c104fe01>] kthread+0x63/0x68
[  685.010431]  [<c104fd9e>] ? __init_kthread_worker+0x42/0x42
[  685.010442]  [<c14dae82>] kernel_thread_helper+0x6/0xd

This issue has been brought up earlier here:

https://lkml.org/lkml/2011/5/21/127

The issue appears to be the rfcomm_session_put in rfcomm_recv_ua. This
operation doesn't seem be to required as for the non-initiator case we
have the rfcomm_process_rx doing an explicit put and in the initiator
case the last dlc_unlink will drive the reference counter to 0.

There have been several attempts to fix these issue:

6c2718d Bluetooth: Do not call rfcomm_session_put() for RFCOMM UA on closed socket
683d949 Bluetooth: Never deallocate a session when some DLC points to it

but AFAICS they do not fix the issue just make it harder to reproduce.

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Signed-off-by: Gopala Krishna Murala <gopala.krishna.murala@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-15 13:09:26 +02:00
Andre Guedes
a51cd2be86 Bluetooth: Fix potential deadlock
We don't need to use the _sync variant in hci_conn_hold and
hci_conn_put to cancel conn->disc_work delayed work. This way
we avoid potential deadlocks like this one reported by lockdep.

======================================================
[ INFO: possible circular locking dependency detected ]
3.2.0+ #1 Not tainted
-------------------------------------------------------
kworker/u:1/17 is trying to acquire lock:
 (&hdev->lock){+.+.+.}, at: [<ffffffffa0041155>] hci_conn_timeout+0x62/0x158 [bluetooth]

but task is already holding lock:
 ((&(&conn->disc_work)->work)){+.+...}, at: [<ffffffff81035751>] process_one_work+0x11a/0x2bf

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #2 ((&(&conn->disc_work)->work)){+.+...}:
       [<ffffffff81057444>] lock_acquire+0x8a/0xa7
       [<ffffffff81034ed1>] wait_on_work+0x3d/0xaa
       [<ffffffff81035b54>] __cancel_work_timer+0xac/0xef
       [<ffffffff81035ba4>] cancel_delayed_work_sync+0xd/0xf
       [<ffffffffa00554b0>] smp_chan_create+0xde/0xe6 [bluetooth]
       [<ffffffffa0056160>] smp_conn_security+0xa3/0x12d [bluetooth]
       [<ffffffffa0053640>] l2cap_connect_cfm+0x237/0x2e8 [bluetooth]
       [<ffffffffa004239c>] hci_proto_connect_cfm+0x2d/0x6f [bluetooth]
       [<ffffffffa0046ea5>] hci_event_packet+0x29d1/0x2d60 [bluetooth]
       [<ffffffffa003dde3>] hci_rx_work+0xd0/0x2e1 [bluetooth]
       [<ffffffff810357af>] process_one_work+0x178/0x2bf
       [<ffffffff81036178>] worker_thread+0xce/0x152
       [<ffffffff81039a03>] kthread+0x95/0x9d
       [<ffffffff812e7754>] kernel_thread_helper+0x4/0x10

-> #1 (slock-AF_BLUETOOTH-BTPROTO_L2CAP){+.+...}:
       [<ffffffff81057444>] lock_acquire+0x8a/0xa7
       [<ffffffff812e553a>] _raw_spin_lock_bh+0x36/0x6a
       [<ffffffff81244d56>] lock_sock_nested+0x24/0x7f
       [<ffffffffa004d96f>] lock_sock+0xb/0xd [bluetooth]
       [<ffffffffa0052906>] l2cap_chan_connect+0xa9/0x26f [bluetooth]
       [<ffffffffa00545f8>] l2cap_sock_connect+0xb3/0xff [bluetooth]
       [<ffffffff81243b48>] sys_connect+0x69/0x8a
       [<ffffffff812e6579>] system_call_fastpath+0x16/0x1b

-> #0 (&hdev->lock){+.+.+.}:
       [<ffffffff81056d06>] __lock_acquire+0xa80/0xd74
       [<ffffffff81057444>] lock_acquire+0x8a/0xa7
       [<ffffffff812e3870>] __mutex_lock_common+0x48/0x38e
       [<ffffffff812e3c75>] mutex_lock_nested+0x2a/0x31
       [<ffffffffa0041155>] hci_conn_timeout+0x62/0x158 [bluetooth]
       [<ffffffff810357af>] process_one_work+0x178/0x2bf
       [<ffffffff81036178>] worker_thread+0xce/0x152
       [<ffffffff81039a03>] kthread+0x95/0x9d
       [<ffffffff812e7754>] kernel_thread_helper+0x4/0x10

other info that might help us debug this:

Chain exists of:
  &hdev->lock --> slock-AF_BLUETOOTH-BTPROTO_L2CAP --> (&(&conn->disc_work)->work)

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock((&(&conn->disc_work)->work));
                               lock(slock-AF_BLUETOOTH-BTPROTO_L2CAP);
                               lock((&(&conn->disc_work)->work));
  lock(&hdev->lock);

 *** DEADLOCK ***

2 locks held by kworker/u:1/17:
 #0:  (hdev->name){.+.+.+}, at: [<ffffffff81035751>] process_one_work+0x11a/0x2bf
 #1:  ((&(&conn->disc_work)->work)){+.+...}, at: [<ffffffff81035751>] process_one_work+0x11a/0x2bf

stack backtrace:
Pid: 17, comm: kworker/u:1 Not tainted 3.2.0+ #1
Call Trace:
 [<ffffffff812e06c6>] print_circular_bug+0x1f8/0x209
 [<ffffffff81056d06>] __lock_acquire+0xa80/0xd74
 [<ffffffff81021ef2>] ? arch_local_irq_restore+0x6/0xd
 [<ffffffff81022bc7>] ? vprintk+0x3f9/0x41e
 [<ffffffff81057444>] lock_acquire+0x8a/0xa7
 [<ffffffffa0041155>] ? hci_conn_timeout+0x62/0x158 [bluetooth]
 [<ffffffff812e3870>] __mutex_lock_common+0x48/0x38e
 [<ffffffffa0041155>] ? hci_conn_timeout+0x62/0x158 [bluetooth]
 [<ffffffff81190fd6>] ? __dynamic_pr_debug+0x6d/0x6f
 [<ffffffffa0041155>] ? hci_conn_timeout+0x62/0x158 [bluetooth]
 [<ffffffff8105320f>] ? trace_hardirqs_off+0xd/0xf
 [<ffffffff812e3c75>] mutex_lock_nested+0x2a/0x31
 [<ffffffffa0041155>] hci_conn_timeout+0x62/0x158 [bluetooth]
 [<ffffffff810357af>] process_one_work+0x178/0x2bf
 [<ffffffff81035751>] ? process_one_work+0x11a/0x2bf
 [<ffffffff81055af3>] ? lock_acquired+0x1d0/0x1df
 [<ffffffffa00410f3>] ? hci_acl_disconn+0x65/0x65 [bluetooth]
 [<ffffffff81036178>] worker_thread+0xce/0x152
 [<ffffffff810407ed>] ? finish_task_switch+0x45/0xc5
 [<ffffffff810360aa>] ? manage_workers.isra.25+0x16a/0x16a
 [<ffffffff81039a03>] kthread+0x95/0x9d
 [<ffffffff812e7754>] kernel_thread_helper+0x4/0x10
 [<ffffffff812e5db4>] ? retint_restore_args+0x13/0x13
 [<ffffffff8103996e>] ? __init_kthread_worker+0x55/0x55
 [<ffffffff812e7750>] ? gs_change+0x13/0x13

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Reviewed-by: Ulisses Furquim <ulisses@profusion.mobi>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-15 13:09:26 +02:00
Octavian Purdila
b5a30dda65 Bluetooth: silence lockdep warning
Since bluetooth uses multiple protocols types, to avoid lockdep
warnings, we need to use different lockdep classes (one for each
protocol type).

This is already done in bt_sock_create but it misses a couple of cases
when new connections are created. This patch corrects that to fix the
following warning:

<4>[ 1864.732366] =======================================================
<4>[ 1864.733030] [ INFO: possible circular locking dependency detected ]
<4>[ 1864.733544] 3.0.16-mid3-00007-gc9a0f62 #3
<4>[ 1864.733883] -------------------------------------------------------
<4>[ 1864.734408] t.android.btclc/4204 is trying to acquire lock:
<4>[ 1864.734869]  (rfcomm_mutex){+.+.+.}, at: [<c14970ea>] rfcomm_dlc_close+0x15/0x30
<4>[ 1864.735541]
<4>[ 1864.735549] but task is already holding lock:
<4>[ 1864.736045]  (sk_lock-AF_BLUETOOTH){+.+.+.}, at: [<c1498bf7>] lock_sock+0xa/0xc
<4>[ 1864.736732]
<4>[ 1864.736740] which lock already depends on the new lock.
<4>[ 1864.736750]
<4>[ 1864.737428]
<4>[ 1864.737437] the existing dependency chain (in reverse order) is:
<4>[ 1864.738016]
<4>[ 1864.738023] -> #1 (sk_lock-AF_BLUETOOTH){+.+.+.}:
<4>[ 1864.738549]        [<c1062273>] lock_acquire+0x104/0x140
<4>[ 1864.738977]        [<c13d35c1>] lock_sock_nested+0x58/0x68
<4>[ 1864.739411]        [<c1493c33>] l2cap_sock_sendmsg+0x3e/0x76
<4>[ 1864.739858]        [<c13d06c3>] __sock_sendmsg+0x50/0x59
<4>[ 1864.740279]        [<c13d0ea2>] sock_sendmsg+0x94/0xa8
<4>[ 1864.740687]        [<c13d0ede>] kernel_sendmsg+0x28/0x37
<4>[ 1864.741106]        [<c14969ca>] rfcomm_send_frame+0x30/0x38
<4>[ 1864.741542]        [<c1496a2a>] rfcomm_send_ua+0x58/0x5a
<4>[ 1864.741959]        [<c1498447>] rfcomm_run+0x441/0xb52
<4>[ 1864.742365]        [<c104f095>] kthread+0x63/0x68
<4>[ 1864.742742]        [<c14d5182>] kernel_thread_helper+0x6/0xd
<4>[ 1864.743187]
<4>[ 1864.743193] -> #0 (rfcomm_mutex){+.+.+.}:
<4>[ 1864.743667]        [<c1061ada>] __lock_acquire+0x988/0xc00
<4>[ 1864.744100]        [<c1062273>] lock_acquire+0x104/0x140
<4>[ 1864.744519]        [<c14d2c70>] __mutex_lock_common+0x3b/0x33f
<4>[ 1864.744975]        [<c14d303e>] mutex_lock_nested+0x2d/0x36
<4>[ 1864.745412]        [<c14970ea>] rfcomm_dlc_close+0x15/0x30
<4>[ 1864.745842]        [<c14990d9>] __rfcomm_sock_close+0x5f/0x6b
<4>[ 1864.746288]        [<c1499114>] rfcomm_sock_shutdown+0x2f/0x62
<4>[ 1864.746737]        [<c13d275d>] sys_socketcall+0x1db/0x422
<4>[ 1864.747165]        [<c14d42f0>] syscall_call+0x7/0xb

Signed-off-by: Octavian Purdila <octavian.purdila@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-15 13:09:26 +02:00
Vinicius Costa Gomes
331660637b Bluetooth: Fix using an absolute timeout on hci_conn_put()
queue_delayed_work() expects a relative time for when that work
should be scheduled.

Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@openbossa.org>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-15 13:09:26 +02:00
Andrzej Kaczmarek
6e1da683f7 Bluetooth: l2cap_set_timer needs jiffies as timeout value
After moving L2CAP timers to workqueues l2cap_set_timer expects timeout
value to be specified in jiffies but constants defined in miliseconds
are used. This makes timeouts unreliable when CONFIG_HZ is not set to
1000.

__set_chan_timer macro still uses jiffies as input to avoid multiple
conversions from/to jiffies for sk_sndtimeo value which is already
specified in jiffies.

Signed-off-by: Andrzej Kaczmarek <andrzej.kaczmarek@tieto.com>
Ackec-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-15 13:09:25 +02:00
Andrzej Kaczmarek
a63752552b Bluetooth: Fix sk_sndtimeo initialization for L2CAP socket
sk_sndtime value should be specified in jiffies thus initial value
needs to be converted from miliseconds. Otherwise this timeout is
unreliable when CONFIG_HZ is not set to 1000.

Signed-off-by: Andrzej Kaczmarek <andrzej.kaczmarek@tieto.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-15 13:09:25 +02:00
Johan Hedberg
4aa832c27e Bluetooth: Remove bogus inline declaration from l2cap_chan_connect
As reported by Dan Carpenter this function causes a Sparse warning and
shouldn't be declared inline:

include/net/bluetooth/l2cap.h:837:30 error: marked inline, but without a
definition"

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
2012-02-15 13:09:25 +02:00
Daniel Wagner
19ad9e94f6 Bluetooth: Don't mark non xfer isoc endpoint URBs with URB_ISO_ASAP
[ 2096.384084] btusb_send_frame:684: hci0
[ 2096.384087] usb 3-1: BOGUS urb flags, 2 --> 0
[ 2096.384091] Bluetooth: hci0 urb ffff8801b61d3a80 submission failed (22)

According the documentation in usb_submit_urb() URB_ISO_ASAP
flag is only allowed for endpoints of type USB_ENDPOINT_XFER_ISOC.

This reverts commit b8aabfc92249b239c425da7e4ca85b7e4855e984.

Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Acked-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-15 13:09:25 +02:00
Peter Hurley
18daf1644e Bluetooth: Fix l2cap conn failures for ssp devices
Commit 330605423c fixed l2cap conn establishment for non-ssp remote
devices by not setting HCI_CONN_ENCRYPT_PEND every time conn security
is tested (which was always returning failure on any subsequent
security checks).

However, this broke l2cap conn establishment for ssp remote devices
when an ACL link was already established at SDP-level security. This
fix ensures that encryption must be pending whenever authentication
is also pending.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Tested-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2012-02-15 13:09:25 +02:00
Linus Torvalds
7ada1dd628 One small bug fix from Axel plus a fix for a build failure in unrealstic
but commonly built configs which for some reason manage to survive for
 an awfully long time in -next without any reports.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

One small bug fix from Axel plus a fix for a build failure in unrealistic
but commonly built configs which for some reason manage to survive for
an awfully long time in -next without any reports.

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: Fix getting voltage in max8649_enable_time()
  regulator: Fix mc13xxx regulator modular build (again)
2012-02-14 15:26:42 -08:00
Linus Torvalds
ebf4bcbd5f Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Quoth BenH:
 "Here are a few powerpc fixes for 3.3, all pretty trivial.  I also
  added the patch to define GET_IP/SET_IP so we can use some more
  asm-generic goodness."

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/pseries/eeh: Fix crash when error happens during device probe
  powerpc/pseries: Fix partition migration hang in stop_topology_update
  powerpc/powernv: Disable interrupts while taking phb->lock
  powerpc: Fix WARN_ON in decrementer_check_overflow
  powerpc/wsp: Fix IRQ affinity setting
  powerpc: Implement GET_IP/SET_IP
  powerpc/wsp: Permanently enable PCI class code workaround
2012-02-14 15:21:25 -08:00
Linus Torvalds
8b36ac50da MMC fixes for 3.3-rc4:
* The most visible fix here is against a regression introduced in 3.3-rc1
    that ran cards in Ultra High Speed mode even when they failed to initialize
    in that mode, leading to lower-speed cards failing to mount.
  * A lockdep warning introduced in 3.3-rc1 is fixed.
  * Various other small driver fixes, most notably for a NULL dereference
    when using highmem with dw_mmc.
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Merge tag 'mmc-fixes-for-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

MMC fixes for 3.3-rc4:
 * The most visible fix here is against a regression introduced in 3.3-rc1
   that ran cards in Ultra High Speed mode even when they failed to initialize
   in that mode, leading to lower-speed cards failing to mount.
 * A lockdep warning introduced in 3.3-rc1 is fixed.
 * Various other small driver fixes, most notably for a NULL dereference
   when using highmem with dw_mmc.

* tag 'mmc-fixes-for-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
  mmc: dw_mmc: Fix PIO mode with support of highmem
  mmc: atmel-mci: save and restore sdioirq when soft reset is performed
  mmc: block: Init ro_lock sysfs attr to fix lockdep warnings
  mmc: sh_mmcif: fix late delayed work initialisation
  mmc: tmio_mmc: fix card eject during IO with DMA
  mmc: core: Fix comparison issue in mmc_compare_ext_csds
  mmc: core: Fix PowerOff Notify suspend/resume
  mmc: sdhci-pci: set Medfield SDIO as non-removable
  mmc: core: add the capability for broken voltage
  mmc: core: Fix low speed mmc card detection failure
  mmc: esdhc: set the timeout to the max value
  mmc: esdhc: add PIO mode support
  mmc: core: Ensure clocks are always enabled before host interaction
  mmc: of_mmc_spi: fix little endian support
  mmc: core: UHS sdio card that fails should not exceed 50MHz
  mmc: esdhc: fix errors when booting kernel on Freescale eSDHC version 2.3
2012-02-14 15:20:50 -08:00
Linus Torvalds
694ce18ec3 Two fixes for VCPU offlining; One to fix the string format exposed
by the xen-pci[front|back] to conform to the one used in majority of
 PCI drivers; Two fixes to make the code more resilient to invalid
 configurations.
 
 Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Merge tag 'stable/for-linus-fixes-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Two fixes for VCPU offlining; One to fix the string format exposed
by the xen-pci[front|back] to conform to the one used in majority of
PCI drivers; Two fixes to make the code more resilient to invalid
configurations.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

* tag 'stable/for-linus-fixes-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xenbus_dev: add missing error check to watch handling
  xen/pci[front|back]: Use %d instead of %1x for displaying PCI devfn.
  xen pvhvm: do not remap pirqs onto evtchns if !xen_have_vector_callback
  xen/smp: Fix CPU online/offline bug triggering a BUG: scheduling while atomic.
  xen/bootup: During bootup suppress XENBUS: Unable to read cpu state
2012-02-14 15:20:11 -08:00
Eric Dumazet
3013dc0cce 3c59x: shorten timer period for slave devices
Jean Delvare reported bonding on top of 3c59x adapters was not detecting
network cable removal fast enough.

3c59x indeed uses a 60 seconds timer to check link status if carrier is
on, and 5 seconds if carrier is off.

This patch reduces timer period to 5 seconds if device is a bonding
slave.

Reported-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-14 16:28:23 -05:00
Eric Dumazet
58e05f357a netpoll: netpoll_poll_dev() should access dev->flags
commit 5a698af53f (bond: service netpoll arp queue on master device)
tested IFF_SLAVE flag against dev->priv_flags instead of dev->flags

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: WANG Cong <amwang@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-14 15:24:26 -05:00
Axel Lin
f65bd5ec47 RxRPC: Fix kcalloc parameters swapped
The first parameter should be "number of elements" and the second parameter
should be "element size".

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-14 14:41:55 -05:00
Michal Schmidt
fc54363752 bnx2x: remove the 'poll' module option
'poll' was a debugging option, but turning it on these days leads to
kernel panic. Remove it.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-14 14:39:45 -05:00
Neal Cardwell
0af2a0d057 tcp: fix tcp_shifted_skb() adjustment of lost_cnt_hint for FACK
This commit ensures that lost_cnt_hint is correctly updated in
tcp_shifted_skb() for FACK TCP senders. The lost_cnt_hint adjustment
in tcp_sacktag_one() only applies to non-FACK senders, so FACK senders
need their own adjustment.

This applies the spirit of 1e5289e121372a3494402b1b131b41bfe1cf9b7f -
except now that the sequence range passed into tcp_sacktag_one() is
correct we need only have a special case adjustment for FACK.

Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-14 14:38:57 -05:00
Linus Torvalds
13d261932b sound fixes for 3.3-rc4
Basically all small fixes suited as rc4: a few HD-audio regression fixes,
 a stable fix for an old Dell laptop with intel8x0, and a simple fix for
 ASoC fsi.
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Merge tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

sound fixes for 3.3-rc4

Basically all small fixes suited as rc4: a few HD-audio regression fixes,
a stable fix for an old Dell laptop with intel8x0, and a simple fix for
ASoC fsi.

* tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: intel8x0: Fix default inaudible sound on Gateway M520
  ALSA: hda - Fix silent speaker output on Acer Aspire 6935
  ALSA: hda - Fix initialization of secondary capture source on VT1705
  ASoC: fsi: fixup fsi_pointer() calculation method
  ALSA: hda - Fix mute-LED VREF value for new HP laptops
2012-02-14 09:09:24 -08:00
Alex Deucher
b7f5b7dec3 drm/radeon/kms: fix MSI re-arm on rv370+
MSI_REARM_EN register is a write only trigger register.
There is no need RMW when re-arming.

May fix:
https://bugs.freedesktop.org/show_bug.cgi?id=41668

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-14 13:36:23 +00:00
Alex Deucher
6f9f8a6108 drm/radeon/kms/atom: bios scratch reg handling updates
- Add missing DFP6 connection state handling
- crtc routing bits not used on DCE4+

Noticed by sylware on phoronix.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-14 10:56:51 +00:00
Dave Airlie
40e8c73878 drm/radeon/kms: drop lock in return path of radeon_fence_count_emitted.
Silly bad return path.

Reported-and-Tested-by: Mikko Vinni
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
CC: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-14 10:56:16 +00:00
Daniel T Chen
27c3afe6e1 ALSA: intel8x0: Fix default inaudible sound on Gateway M520
BugLink: https://bugs.launchpad.net/bugs/930842

The reporter states that audio is inaudible by default without muting
'External Amplifier'. Add a quirk to handle his SSID so that changing
the control is not necessary.

Reported-and-tested-by: Benjamin Carlson <elderbubba0810@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-14 09:33:47 +01:00
Takashi Iwai
675c67afb6 A simple fix from Morimoto-san for the pointer() operation in the FSI
driver.
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Merge tag 'asoc-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

A simple fix from Morimoto-san for the pointer() operation in the FSI
driver.
2012-02-14 09:24:58 +01:00