Commit graph

448532 commits

Author SHA1 Message Date
Malcolm Priestley
bffa42e151 staging: vt6656: desc.h Remove unused macros
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:58:29 -07:00
Malcolm Priestley
d4f376ddbe staging: vt6656: device.h remove dead macros
Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:58:29 -07:00
Malcolm Priestley
4aeaf1538f staging: vt6656: device_cfg.h Move macros to device.h
Remove device_cfg.h

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:58:29 -07:00
Malcolm Priestley
fe7111aa93 staging: vt6656: device_cfg.h remove dead code.
Also unneeded #ifndef

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:58:28 -07:00
Malcolm Priestley
9af49fdbdd staging: vt6656: PIPEnsControlIn remove camel case.
Camel case changes
pDevice, byRequest,  wValue, wIndex, wLength, pbyBuffer, ntStatus

->

priv, request, value, index, length, buffer, status

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:58:28 -07:00
Malcolm Priestley
0f06a73949 staging: vt6656: PIPEnsControlOut remove camel case.
Camel case changes
pDevice, byRequest,  wValue, wIndex, wLength, pbyBuffer, ntStatus

->

priv, request, value, index, length, buffer, status

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:58:28 -07:00
Malcolm Priestley
8a6602614a staging: vt6656: usbpipe: replace debug messsages.
Replace all DBG_PRT wiht dev_dbg

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:58:28 -07:00
Malcolm Priestley
f347d8cbd0 staging: vt6656: usbpipe: get rid of in/out debug messages.
Remove all in/out debug messages.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:58:28 -07:00
Malcolm Priestley
f53d9f12c5 staging: vt6656: rf.c additional power.
Provides extra power on weak RSSI.

The values orginate from the vendors driver.

It is applied later in RFbRawSetPower to simplify and check that it doesn't
exceed the max power.

Vendor driver VT6656_Linux_src_v1.21.03_x86_11.04.zip
http://www.viaembedded.com/servlet/downloadSvl?id=1890&download_file_id=14704
This is GPL-licensed code.

vendors code
...
if (pDevice->byRFType == RF_VT3226D0) {
	if (lRSSI == 0){
		lAdditionalPower = 7;
	}
	else if ((lRSSI < -60) && (lRSSI >= -65)){
		lAdditionalPower = 5;
		//lAdditionalPower = 9;
	}
	else if ((lRSSI < -65) && (lRSSI >= -70)){
		lAdditionalPower = 7;
		//lAdditionalPower = 9;
	}
	else if ((lRSSI < -70) && (lRSSI >= -80)){
		lAdditionalPower = 9;
		}
	else if (lRSSI < -80) {
		lAdditionalPower = 9;
	}
}
else {
	if (lRSSI == 0){
		lAdditionalPower = 7;
	}
	else if ((lRSSI < -70) && (lRSSI >= -75)){
		lAdditionalPower = 5;
	}
	else if ((lRSSI < -75) && (lRSSI >= -80)){
			lAdditionalPower = 7;
		}
		else if (lRSSI < -80) {
			lAdditionalPower = 9;
		}
	}

...

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:58:27 -07:00
Masaru Nomura
e03e1e39b6 staging: unisys: visorutil: Add a blank line
Add a blank line after declarations to meet kernel coding style.

Signed-off-by: Masaru Nomura <massa.nomura@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:56:32 -07:00
Benjamin Romer
c79d84517c staging: unisys: remove remaining proc directory entries
Finally, remove /proc/uislib and all remaining, redundant entries created
under /proc/uislib/vbus.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:49:52 -07:00
Benjamin Romer
7ec967208d staging: unisys: move uislib/info proc entry to debugfs
Convert /proc/uislib/info to an equivalent entry under debugfs.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:49:52 -07:00
Benjamin Romer
e564f3a07c staging: unisys: remove functions made redundant in uislib.c
The patches to move proc files have made the functions
uislib_proc_read_writeonly() and stop_chipset() redundant. Remove them.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:49:51 -07:00
Benjamin Romer
81d2d7de0b staging: unisys: move uislib/smart_wakeup proc entry to debugfs
Convert /proc/uislib/smart_wakeup to an equivalent entry in debugfs.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:49:51 -07:00
Benjamin Romer
b913a2ef77 staging: unisys: move uislib/cycles_before_wait proc entry to debugfs
Convert /proc/uislib/cycles_before_wait to an equivalent entry in debugfs.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:49:51 -07:00
Benjamin Romer
28fa597f43 staging: unisys: move uislib/platform proc entry to debugfs
Convert /proc/uislib/platform to an equivalent entry in debugfs.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:49:51 -07:00
Benjamin Romer
b27a00de27 staging: unisys: remove testing proc interfaces from uislib
Several proc interfaces in the uislib module were intended for debug and
testing during initial driver development. They are no longer needed, so
we should remove them from the module.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:45:56 -07:00
Benjamin Romer
90addb0218 staging: unisys: Replace GUID with uuid_le
This patch replaces the GUID type with uuid_le. It removes the header file
guidutils.h, updates all uses of the GUID type to uuid_le, and replaces all
function calls that used the GUID type with their uuid_le equivalents.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:45:15 -07:00
Ken Cox
37b7e990ff Staging: unisys: visorutil: Add MODULE_LICENSE("GPL")
The visorutil module was lacking license info.

Signed-off-by: Ken Cox <jkc@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:44:17 -07:00
Ken Cox
fcd0157ece Staging: unisys: detect s-Par firmware
This patch adds support for detection of s-Par firmware by checking for
the hypervisor bit in the CPU capabilities, and then querying the hypervisor
ID cpuid leaf.

This functionality will be used by the unisys drivers to determine if
they are being loaded on an s-Par platform and refuse to load if no
s-Par firmware is present.

This fixes a problem reported from upstream where a panic occurs if the
unisys drivers are loaded on a non s-Par system.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Ken Cox <jkc@redhat.com>
Tested by: Ken Cox <jkc@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-18 09:44:17 -07:00
Mikulas Patocka
1e1110c43b target: fix memory leak on XCOPY
On each processed XCOPY command, two "kmalloc-512" memory objects are
leaked. These represent two allocations of struct xcopy_pt_cmd in
target_core_xcopy.c.

The reason for the memory leak is that the cmd_kref field is not
initialized (thus, it is zero because the allocations were done with
kzalloc). When we decrement zero kref in target_put_sess_cmd, the result
is not zero, thus target_release_cmd_kref is not called.

This patch fixes the bug by moving kref initialization from
target_get_sess_cmd to transport_init_se_cmd (this function is called from
target_core_xcopy.c, so it will correctly initialize cmd_kref). It can be
easily verified that all code that calls target_get_sess_cmd also calls
transport_init_se_cmd earlier, thus moving kref_init shouldn't introduce
any new problems.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org	# 3.12+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-05-17 15:49:40 -07:00
David S. Miller
5aa4ecfd0d sparc64: Add membar to Niagara2 memcpy code.
This is the prevent previous stores from overlapping the block stores
done by the memcpy loop.

Based upon a glibc patch by Jose E. Marchesi

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-17 11:28:05 -07:00
Maxime Ripard
ce78e353aa ARM: sun6i: Define the A31 CPUs enable-method
That will allow to use the CPU_METHOD_OF_DECLARE definition we did previously.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-17 18:42:15 +02:00
Maxime Ripard
27a3cf055f ARM: sun6i: Retire the smp field in A31 machine
Now that we can rely on the enable-method, remove the smp field declaration
from A31 machine.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-17 18:42:05 +02:00
Maxime Ripard
913627b314 Documentation: dt: bindings: Document Allwinner A31 enable method
Document the necently introduced A31 enable-method as a valid option.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-17 18:42:02 +02:00
Maxime Ripard
cd4b2b9bc2 ARM: sun6i: Use CPU_METHOD_OF_DECLARE
CPU_METHOD_OF_DECLARE allows to bind the smp_ops to a set of cpus through the
enable-method property, instead of relying on the machine to define it. Switch
to it to get closer to an empty machine.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-17 18:42:00 +02:00
Maxime Ripard
840cf8259c Documentation: dt: bindings: Document ARM PSCI enable method
arm,psci is also a valid enable-method for the CPUs on ARM. Document it.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-17 18:41:57 +02:00
Chen-Yu Tsai
5b9c49bea1 ARM: sunxi: dt: build DTs according to new MACH_SUNxI Kconfig symbols
Allwinner sunxi support has been split into the various SoCs in Kconfig.
Adapt the new symbols for the device trees.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2014-05-17 18:40:57 +02:00
Jean Delvare
b3d681a4fc firewire: Use COMPILE_TEST for build testing
Stop using BROKEN as an alternative dependency for the purpose of
build testing the firewire core. The newly introduced COMPILE_TEST is
better suited for that purpose.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2014-05-17 15:59:08 +02:00
Krzysztof Kozlowski
0608032a90 regulator: s2mpa01: Use rdev_get_id() to access id of regulator
Use regulator API rdev_get_id() to access id of regulator.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-17 14:30:06 +01:00
Krzysztof Kozlowski
b203e0dfe1 regulator: s2mps11: Fix accidental enable of buck6 ramp delay
S2MPS11 supports enabling/disabling ramp delay only for buck[2346].
Other bucks have ramp delay enabled always.

However the bit shift for enabling buck6 ramp delay in register is equal
to 0. When ramp delay was set for the bucks unsupporting enable/disable
(buck[15789] and buck10), the ramp delay for buck6 was also enabled.

Fixes: b96244fad9 ("regulator: s2mps11: Don't check enable_shift before setting enable ramp rate")
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-17 14:29:26 +01:00
Krzysztof Kozlowski
51e2fc0a25 regulator: s2mpa01: Fix accidental enable of buck4 ramp delay
S2MPA01 supports enabling/disabling ramp delay only for buck[1234].
Other bucks have ramp delay enabled always.

However the bit shift for enabling buck4 ramp delay in register is equal
to 0. When ramp delay was set for the bucks unsupporting enable/disable
(buck[56789] and buck10), the ramp delay for buck4 was also enabled.

Fixes: f7b1a8dc1c ("regulator: s2mpa01: Don't check enable_shift before setting enable ramp rate")
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-05-17 14:28:09 +01:00
Maxime Coquelin
c6594025c0 ARM: STi: Add STiH407 SoC support
This patch adds support to STiH407 SoC.

Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
2014-05-17 10:22:30 +02:00
David S. Miller
a8d0d8417c Merge branch 'bond_stacked_vlans'
Vlad Yasevich says:

====================
Fixed stacked vlan usage on top of bonds

Bonding device driver now support q-in-q on top for bonds.  There are
a few issues here though.

First, when arp monitoring is used, bonding driver will not correctly
tag traffic if the source of the arp device was configured on top of
q-in-q.  It may also incorrectly pick the wrong vlan id if the ordering
of that upper devices isn't as expected (there is no guarntee on ordering).

Second, the alb/tlb may use what would be considered 'inner' vlans in
its learning announcements, as it simply announces all vlans configured
on top of the bond without regard for encapsulation/stacking.

This series fixes the above 2 issues.  This series also depends on the
functionality introduced in
	http://patchwork.ozlabs.org/patch/349766/

Since v1:
  - Changed how patch1 verifies the device path.  We no longer use the
    _all_upper version of the function.  We find the path and if it was
    found, then collect the vlan information.
  - Use the constant to devine maximum vlan nest level support on top
    of bonding.  This can be changed if 2 is too low.
  - Inlude patch2 into the series.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-16 22:29:17 -04:00
Vlad Yasevich
f60c3704e8 bonding: Fix alb mode to only use first level vlans.
ALB/TLB learning packets use all vlans configured on top
of the bond.  This ends up being incorrect if we have a stack
of vlans on top of the bond.  ALB/TLB should only use
first level/outer most vlans in its announcements.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-16 22:29:05 -04:00
Vlad Yasevich
44a4085538 bonding: Fix stacked device detection in arp monitoring
Prior to commit fbd929f2dc
	bonding: support QinQ for bond arp interval

the arp monitoring code allowed for proper detection of devices
stacked on top of vlans.  Since the above commit, the
code can still detect a device stacked on top of single
vlan, but not a device stacked on top of Q-in-Q configuration.
The search will only set the inner vlan tag if the route
device is the vlan device.  However, this is not always the
case, as it is possible to extend the stacked configuration.

With this patch it is possible to provision devices on
top Q-in-Q vlan configuration that should be used as
a source of ARP monitoring information.

For example:
ip link add link bond0 vlan10 type vlan proto 802.1q id 10
ip link add link vlan10 vlan100 type vlan proto 802.1q id 100
ip link add link vlan100 type macvlan

Note:  This patch limites the number of stacked VLANs to 2,
just like before.  The original, however had another issue
in that if we had more then 2 levels of VLANs, we would end
up generating incorrectly tagged traffic.  This is no longer
possible.

Fixes: fbd929f2dc (bonding: support QinQ for bond arp interval)
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@redhat.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Ding Tianhong <dingtianhong@huawei.com>
CC: Patric McHardy <kaber@trash.net>
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-16 22:29:05 -04:00
Theodore Ts'o
f9c6d4987b random: fix BUG_ON caused by accounting simplification
Commit ee1de406ba ("random: simplify accounting logic") simplified
things too much, in that it allows the following to trigger an
overflow that results in a BUG_ON crash:

dd if=/dev/urandom of=/dev/zero bs=67108707 count=1

Thanks to Peter Zihlstra for discovering the crash, and Hannes
Frederic for analyizing the root cause.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reported-by: Peter Zijlstra <peterz@infradead.org>
Reported-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Cc: Greg Price <price@mit.edu>
2014-05-16 22:18:22 -04:00
David S. Miller
6bd64ac0f9 Merge branch 'stacked_netdevice_locking'
Vlad Yasevich says:

====================
Fix lockdep issues with stacked devices

Recent commit dc8eaaa006
    vlan: Fix lockdep warning when vlan dev handle notification

attempted to solve lockdep issues with vlans where multiple
vlans were stacked.  However, the code does not work correctly
when the vlan stack is interspersed with other devices in between
the vlans.  Additionally, similar lockdep issues show up with other
devices.

This series provides a generic way to solve these issue for any
devices that can be stacked.  It also addresses the concern for
vlan and macvlan devices.  I am not sure whether it makes sense
to do so for other types like team, vxlan, and bond.

Thanks
-vlad

Since v2:
  - Remove rcu variants from patch1, since that function is called
    only under rtnl.
  - Fix whitespace problems reported by checkpatch

Since v1:
  - Fixed up a goofed-up rebase.
    * is_vlan_dev() should be bool and that change belongs in patch3.
    * patch4 should not have any vlan changes in it.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-16 22:15:23 -04:00
Vlad Yasevich
c674ac30c5 macvlan: Fix lockdep warnings with stacked macvlan devices
Macvlan devices try to avoid stacking, but that's not always
successfull or even desired.  As an example, the following
configuration is perefectly legal and valid:

eth0 <--- macvlan0 <---- vlan0.10 <--- macvlan1

However, this configuration produces the following lockdep
trace:
[  115.620418] ======================================================
[  115.620477] [ INFO: possible circular locking dependency detected ]
[  115.620516] 3.15.0-rc1+ #24 Not tainted
[  115.620540] -------------------------------------------------------
[  115.620577] ip/1704 is trying to acquire lock:
[  115.620604]  (&vlan_netdev_addr_lock_key/1){+.....}, at: [<ffffffff815df49c>] dev_uc_sync+0x3c/0x80
[  115.620686]
but task is already holding lock:
[  115.620723]  (&macvlan_netdev_addr_lock_key){+.....}, at: [<ffffffff815da5be>] dev_set_rx_mode+0x1e/0x40
[  115.620795]
which lock already depends on the new lock.

[  115.620853]
the existing dependency chain (in reverse order) is:
[  115.620894]
-> #1 (&macvlan_netdev_addr_lock_key){+.....}:
[  115.620935]        [<ffffffff810d57f2>] lock_acquire+0xa2/0x130
[  115.620974]        [<ffffffff816f62e7>] _raw_spin_lock_nested+0x37/0x50
[  115.621019]        [<ffffffffa07296c3>] vlan_dev_set_rx_mode+0x53/0x110 [8021q]
[  115.621066]        [<ffffffff815da557>] __dev_set_rx_mode+0x57/0xa0
[  115.621105]        [<ffffffff815da5c6>] dev_set_rx_mode+0x26/0x40
[  115.621143]        [<ffffffff815da6be>] __dev_open+0xde/0x140
[  115.621174]        [<ffffffff815da9ad>] __dev_change_flags+0x9d/0x170
[  115.621174]        [<ffffffff815daaa9>] dev_change_flags+0x29/0x60
[  115.621174]        [<ffffffff815e7f11>] do_setlink+0x321/0x9a0
[  115.621174]        [<ffffffff815ea59f>] rtnl_newlink+0x51f/0x730
[  115.621174]        [<ffffffff815e6e75>] rtnetlink_rcv_msg+0x95/0x250
[  115.621174]        [<ffffffff81608b19>] netlink_rcv_skb+0xa9/0xc0
[  115.621174]        [<ffffffff815e6dca>] rtnetlink_rcv+0x2a/0x40
[  115.621174]        [<ffffffff81608150>] netlink_unicast+0xf0/0x1c0
[  115.621174]        [<ffffffff8160851f>] netlink_sendmsg+0x2ff/0x740
[  115.621174]        [<ffffffff815bc9db>] sock_sendmsg+0x8b/0xc0
[  115.621174]        [<ffffffff815bd4b9>] ___sys_sendmsg+0x369/0x380
[  115.621174]        [<ffffffff815bdbb2>] __sys_sendmsg+0x42/0x80
[  115.621174]        [<ffffffff815bdc02>] SyS_sendmsg+0x12/0x20
[  115.621174]        [<ffffffff816ffd69>] system_call_fastpath+0x16/0x1b
[  115.621174]
-> #0 (&vlan_netdev_addr_lock_key/1){+.....}:
[  115.621174]        [<ffffffff810d4d43>] __lock_acquire+0x1773/0x1a60
[  115.621174]        [<ffffffff810d57f2>] lock_acquire+0xa2/0x130
[  115.621174]        [<ffffffff816f62e7>] _raw_spin_lock_nested+0x37/0x50
[  115.621174]        [<ffffffff815df49c>] dev_uc_sync+0x3c/0x80
[  115.621174]        [<ffffffffa0696d2a>] macvlan_set_mac_lists+0xca/0x110 [macvlan]
[  115.621174]        [<ffffffff815da557>] __dev_set_rx_mode+0x57/0xa0
[  115.621174]        [<ffffffff815da5c6>] dev_set_rx_mode+0x26/0x40
[  115.621174]        [<ffffffff815da6be>] __dev_open+0xde/0x140
[  115.621174]        [<ffffffff815da9ad>] __dev_change_flags+0x9d/0x170
[  115.621174]        [<ffffffff815daaa9>] dev_change_flags+0x29/0x60
[  115.621174]        [<ffffffff815e7f11>] do_setlink+0x321/0x9a0
[  115.621174]        [<ffffffff815ea59f>] rtnl_newlink+0x51f/0x730
[  115.621174]        [<ffffffff815e6e75>] rtnetlink_rcv_msg+0x95/0x250
[  115.621174]        [<ffffffff81608b19>] netlink_rcv_skb+0xa9/0xc0
[  115.621174]        [<ffffffff815e6dca>] rtnetlink_rcv+0x2a/0x40
[  115.621174]        [<ffffffff81608150>] netlink_unicast+0xf0/0x1c0
[  115.621174]        [<ffffffff8160851f>] netlink_sendmsg+0x2ff/0x740
[  115.621174]        [<ffffffff815bc9db>] sock_sendmsg+0x8b/0xc0
[  115.621174]        [<ffffffff815bd4b9>] ___sys_sendmsg+0x369/0x380
[  115.621174]        [<ffffffff815bdbb2>] __sys_sendmsg+0x42/0x80
[  115.621174]        [<ffffffff815bdc02>] SyS_sendmsg+0x12/0x20
[  115.621174]        [<ffffffff816ffd69>] system_call_fastpath+0x16/0x1b
[  115.621174]
other info that might help us debug this:

[  115.621174]  Possible unsafe locking scenario:

[  115.621174]        CPU0                    CPU1
[  115.621174]        ----                    ----
[  115.621174]   lock(&macvlan_netdev_addr_lock_key);
[  115.621174]                                lock(&vlan_netdev_addr_lock_key/1);
[  115.621174]                                lock(&macvlan_netdev_addr_lock_key);
[  115.621174]   lock(&vlan_netdev_addr_lock_key/1);
[  115.621174]
 *** DEADLOCK ***

[  115.621174] 2 locks held by ip/1704:
[  115.621174]  #0:  (rtnl_mutex){+.+.+.}, at: [<ffffffff815e6dbb>] rtnetlink_rcv+0x1b/0x40
[  115.621174]  #1:  (&macvlan_netdev_addr_lock_key){+.....}, at: [<ffffffff815da5be>] dev_set_rx_mode+0x1e/0x40
[  115.621174]
stack backtrace:
[  115.621174] CPU: 3 PID: 1704 Comm: ip Not tainted 3.15.0-rc1+ #24
[  115.621174] Hardware name: Hewlett-Packard HP xw8400 Workstation/0A08h, BIOS 786D5 v02.38 10/25/2010
[  115.621174]  ffffffff82339ae0 ffff880465f79568 ffffffff816ee20c ffffffff82339ae0
[  115.621174]  ffff880465f795a8 ffffffff816e9e1b ffff880465f79600 ffff880465b019c8
[  115.621174]  0000000000000001 0000000000000002 ffff880465b019c8 ffff880465b01230
[  115.621174] Call Trace:
[  115.621174]  [<ffffffff816ee20c>] dump_stack+0x4d/0x66
[  115.621174]  [<ffffffff816e9e1b>] print_circular_bug+0x200/0x20e
[  115.621174]  [<ffffffff810d4d43>] __lock_acquire+0x1773/0x1a60
[  115.621174]  [<ffffffff810d3172>] ? trace_hardirqs_on_caller+0xb2/0x1d0
[  115.621174]  [<ffffffff810d57f2>] lock_acquire+0xa2/0x130
[  115.621174]  [<ffffffff815df49c>] ? dev_uc_sync+0x3c/0x80
[  115.621174]  [<ffffffff816f62e7>] _raw_spin_lock_nested+0x37/0x50
[  115.621174]  [<ffffffff815df49c>] ? dev_uc_sync+0x3c/0x80
[  115.621174]  [<ffffffff815df49c>] dev_uc_sync+0x3c/0x80
[  115.621174]  [<ffffffffa0696d2a>] macvlan_set_mac_lists+0xca/0x110 [macvlan]
[  115.621174]  [<ffffffff815da557>] __dev_set_rx_mode+0x57/0xa0
[  115.621174]  [<ffffffff815da5c6>] dev_set_rx_mode+0x26/0x40
[  115.621174]  [<ffffffff815da6be>] __dev_open+0xde/0x140
[  115.621174]  [<ffffffff815da9ad>] __dev_change_flags+0x9d/0x170
[  115.621174]  [<ffffffff815daaa9>] dev_change_flags+0x29/0x60
[  115.621174]  [<ffffffff811e1db1>] ? mem_cgroup_bad_page_check+0x21/0x30
[  115.621174]  [<ffffffff815e7f11>] do_setlink+0x321/0x9a0
[  115.621174]  [<ffffffff810d394c>] ? __lock_acquire+0x37c/0x1a60
[  115.621174]  [<ffffffff815ea59f>] rtnl_newlink+0x51f/0x730
[  115.621174]  [<ffffffff815ea169>] ? rtnl_newlink+0xe9/0x730
[  115.621174]  [<ffffffff815e6e75>] rtnetlink_rcv_msg+0x95/0x250
[  115.621174]  [<ffffffff810d329d>] ? trace_hardirqs_on+0xd/0x10
[  115.621174]  [<ffffffff815e6dbb>] ? rtnetlink_rcv+0x1b/0x40
[  115.621174]  [<ffffffff815e6de0>] ? rtnetlink_rcv+0x40/0x40
[  115.621174]  [<ffffffff81608b19>] netlink_rcv_skb+0xa9/0xc0
[  115.621174]  [<ffffffff815e6dca>] rtnetlink_rcv+0x2a/0x40
[  115.621174]  [<ffffffff81608150>] netlink_unicast+0xf0/0x1c0
[  115.621174]  [<ffffffff8160851f>] netlink_sendmsg+0x2ff/0x740
[  115.621174]  [<ffffffff815bc9db>] sock_sendmsg+0x8b/0xc0
[  115.621174]  [<ffffffff8119d4af>] ? might_fault+0x5f/0xb0
[  115.621174]  [<ffffffff8119d4f8>] ? might_fault+0xa8/0xb0
[  115.621174]  [<ffffffff8119d4af>] ? might_fault+0x5f/0xb0
[  115.621174]  [<ffffffff815cb51e>] ? verify_iovec+0x5e/0xe0
[  115.621174]  [<ffffffff815bd4b9>] ___sys_sendmsg+0x369/0x380
[  115.621174]  [<ffffffff816faa0d>] ? __do_page_fault+0x11d/0x570
[  115.621174]  [<ffffffff810cfe9f>] ? up_read+0x1f/0x40
[  115.621174]  [<ffffffff816fab04>] ? __do_page_fault+0x214/0x570
[  115.621174]  [<ffffffff8120a10b>] ? mntput_no_expire+0x6b/0x1c0
[  115.621174]  [<ffffffff8120a0b7>] ? mntput_no_expire+0x17/0x1c0
[  115.621174]  [<ffffffff8120a284>] ? mntput+0x24/0x40
[  115.621174]  [<ffffffff815bdbb2>] __sys_sendmsg+0x42/0x80
[  115.621174]  [<ffffffff815bdc02>] SyS_sendmsg+0x12/0x20
[  115.621174]  [<ffffffff816ffd69>] system_call_fastpath+0x16/0x1b

Fix this by correctly providing macvlan lockdep class.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-16 22:14:49 -04:00
Vlad Yasevich
d38569ab2b vlan: Fix lockdep warning with stacked vlan devices.
This reverts commit dc8eaaa006.
	vlan: Fix lockdep warning when vlan dev handle notification

Instead we use the new new API to find the lock subclass of
our vlan device.  This way we can support configurations where
vlans are interspersed with other devices:
  bond -> vlan -> macvlan -> vlan

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-16 22:14:49 -04:00
Vlad Yasevich
25175ba5c9 net: Allow for more then a single subclass for netif_addr_lock
Currently netif_addr_lock_nested assumes that there can be only
a single nesting level between 2 devices.  However, if we
have multiple devices of the same type stacked, this fails.
For example:
 eth0 <-- vlan0.10 <-- vlan0.10.20

A more complicated configuration may stack more then one type of
device in different order.
Ex:
  eth0 <-- vlan0.10 <-- macvlan0 <-- vlan1.10.20 <-- macvlan1

This patch adds an ndo_* function that allows each stackable
device to report its nesting level.  If the device doesn't
provide this function default subclass of 1 is used.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-16 22:14:49 -04:00
Vlad Yasevich
4085ebe8c3 net: Find the nesting level of a given device by type.
Multiple devices in the kernel can be stacked/nested and they
need to know their nesting level for the purposes of lockdep.
This patch provides a generic function that determines a nesting
level of a particular device by its type (ex: vlan, macvlan, etc).
We only care about nesting of the same type of devices.

For example:
  eth0 <- vlan0.10 <- macvlan0 <- vlan1.20

The nesting level of vlan1.20 would be 1, since there is another vlan
in the stack under it.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-16 22:14:49 -04:00
Wolfram Sang
a5176e0d9d ARM: shmobile: Remove Genmai reference DTS
Now that the DTS file r7s72100-genmai.dts can be used with
board-genmai.c and board-genmai-reference.c, proceed with removing
r7s72100-genmai-reference.dts.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-17 09:06:29 +09:00
Wolfram Sang
23f679fa6d ARM: shmobile: Let Genmai multiplatform boot with Genmai DTB
Let the multiplatform Genmai support boot with the unified DTS.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-17 09:06:19 +09:00
Wolfram Sang
2606f47be5 ARM: shmobile: Sync Genmai DTS with Genmai reference DTS
Copy the device nodes from Genmai reference into the Genmai device tree
file. This will allow us to use a single DTS file regardless of kernel
configuration. In case of legacy C board code the device nodes may or
may not be used, but in the multiplatform case all the DT device nodes
will be used.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-17 09:06:16 +09:00
Wolfram Sang
88351216f5 ARM: shmobile: genmai-reference: Remove legacy clock support
genmai-reference is now only built for multiplatform which means that
CCF comes with the package. Remove unused legacy code ifdefs to clean up
the code.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-17 09:06:11 +09:00
Wolfram Sang
551f80a5c9 ARM: shmobile: Remove non-multiplatform Genmai reference support
Now that r7s72100 has CCF support, remove the legacy Genmai reference
Kconfig bits for the non-multiplatform case.

Starting from this commit Genmai board support is always enabled via
CONFIG_MACH_GENMAI, and CONFIG_ARCH_MULTIPLATFORM is used to select
between board-genmai.c and board-genmai-reference.c

The file board-genmai-reference.c can no longer be used together with
the legacy sh-clk clock framework, instead CCF is used.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2014-05-17 09:06:04 +09:00
Lv Zheng
73577d1df8 ACPI: Fix conflict between customized DSDT and DSDT local copy
This patch fixes the following issue:
If DSDT is customized, no local DSDT copy is needed.

References: https://bugzilla.kernel.org/show_bug.cgi?id=69711
Signed-off-by: Enrico Etxe Arte <goitizena.generoa@gmail.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Cc: 2.6.35+ <stable@vger.kernel.org> # 2.6.35+
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-05-17 01:55:33 +02:00
Viresh Kumar
e7b453d3dd cpufreq: Tegra: drop wrapper around tegra_update_cpu_speed()
Tegra has implemented an unnecessary wrapper over tegra_update_cpu_speed(), i.e.
tegra_target(), which wasn't doing anything apart of calling
tegra_update_cpu_speed(). Get rid of that and use tegra_target() directly.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-05-17 01:38:31 +02:00
Philipp Zabel
5ee73ebe09 cpufreq: imx6q: Remove unused include
There is no need to include delay.h.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-05-17 01:34:42 +02:00