GitHub/LineageOS/G12/android_kernel_amlogic_linux-4.9.git
12 years agoPCI: Make pci_rescan_bus handle add_list
Yinghai Lu [Sat, 21 Jan 2012 10:08:23 +0000 (02:08 -0800)]
PCI: Make pci_rescan_bus handle add_list

This allows us to allocate resources to hotplug bridges during
remove/rescan.

We need to move the function to setup-bus.c so it can use
__pci_bus_size_bridges and __pci_bus_assign_resources directly to take
the add_list resource tracking list.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI: Make rescan bus increase bridge resource size if needed
Yinghai Lu [Sat, 21 Jan 2012 10:08:22 +0000 (02:08 -0800)]
PCI: Make rescan bus increase bridge resource size if needed

Current rescan will not touch bridge MMIO and IO.

Try to reuse pci_assign_unassigned_bridge_resources(bridge) to update bridge
resources, if child devices need more resources.

Only do that for bridges whose children are all removed already; i.e. don't
release resources that could already be in use by drivers on child devices.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI: Use add_list in pcie hotplug path.
Yinghai Lu [Sat, 21 Jan 2012 10:08:21 +0000 (02:08 -0800)]
PCI: Use add_list in pcie hotplug path.

We need add size for hot plug path when pluging in hotplug chassis
without cards.

-v2: change descriptions. make it applicable after "pci: Check bridge
     resources after resource allocation."

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI: try to assign required+option size first
Yinghai Lu [Sat, 21 Jan 2012 10:08:20 +0000 (02:08 -0800)]
PCI: try to assign required+option size first

We found reassignment can not find a range for one resource, even if the
total available range is large enough.

bridge b1:02.0 will need 2M+3M
bridge b1:03.0 will need 2M+3M

so bridge b0:00.0 will get assigned: 4M : [f8000000-f83fffff]
   later is reassigned to 10M : [f8000000-f9ffffff]

b1:02.0 is assigned to 2M : [f8000000-f81fffff]
b1:03.0 is assigned to 2M : [f8200000-f83fffff]

After that b1:03.0 get chance to be reassigned to [f8200000-f86fffff],
but b1:02.0 will not have chance to expand, because b1:03.0 is using in
middle one.

[  187.911401] pci 0000:b1:02.0: bridge window [mem 0x00100000-0x002fffff] to [bus b2-b2] add_size 300000
[  187.920764] pci 0000:b1:03.0: bridge window [mem 0x00100000-0x002fffff] to [bus b3-b3] add_size 300000
[  187.930129] pci 0000:b1:02.0: [mem 0x00100000-0x002fffff] get_res_add_size  add_size 300000
[  187.938500] pci 0000:b1:03.0: [mem 0x00100000-0x002fffff] get_res_add_size  add_size 300000
[  187.946857] pci 0000:b0:00.0: bridge window [mem 0x00100000-0x004fffff] to [bus b1-b3] add_size 600000
[  187.956206] pci 0000:b0:00.0: BAR 14: assigned [mem 0xf8000000-0xf83fffff]
[  187.963102] pci 0000:b0:00.0: BAR 15: assigned [mem 0xf5000000-0xf51fffff pref]
[  187.970434] pci 0000:b0:00.0: BAR 14: reassigned [mem 0xf8000000-0xf89fffff]
[  187.977497] pci 0000:b1:02.0: BAR 14: assigned [mem 0xf8000000-0xf81fffff]
[  187.984383] pci 0000:b1:02.0: BAR 15: assigned [mem 0xf5000000-0xf50fffff pref]
[  187.991695] pci 0000:b1:03.0: BAR 14: assigned [mem 0xf8200000-0xf83fffff]
[  187.998576] pci 0000:b1:03.0: BAR 15: assigned [mem 0xf5100000-0xf51fffff pref]
[  188.005888] pci 0000:b1:03.0: BAR 14: reassigned [mem 0xf8200000-0xf86fffff]
[  188.012939] pci 0000:b1:02.0: BAR 14: can't assign mem (size 0x200000)
[  188.019471] pci 0000:b1:02.0: failed to add 300000 to res=[mem 0xf8000000-0xf81fffff]
[  188.027326] pci 0000:b2:00.0: reg 184: [mem 0x00000000-0x00003fff 64bit]
[  188.034071] pci 0000:b2:00.0: reg 18c: [mem 0x00000000-0x000fffff 64bit]
[  188.040795] pci 0000:b2:00.0: BAR 2: assigned [mem 0xf8000000-0xf80fffff 64bit]
[  188.048119] pci 0000:b2:00.0: BAR 2: set to [mem 0xf8000000-0xf80fffff 64bit] (PCI address [0xf8000000-0xf80fffff])
[  188.058550] pci 0000:b2:00.0: BAR 6: assigned [mem 0xf5000000-0xf50fffff pref]
[  188.065802] pci 0000:b2:00.0: BAR 0: assigned [mem 0xf8100000-0xf8103fff 64bit]
[  188.073125] pci 0000:b2:00.0: BAR 0: set to [mem 0xf8100000-0xf8103fff 64bit] (PCI address [0xf8100000-0xf8103fff])
[  188.083596] pci 0000:b2:00.0: reg 18c: [mem 0x00000000-0x000fffff 64bit]
[  188.090310] pci 0000:b2:00.0: BAR 9: can't assign mem (size 0x300000)
[  188.096773] pci 0000:b2:00.0: reg 184: [mem 0x00000000-0x00003fff 64bit]
[  188.103479] pci 0000:b2:00.0: BAR 7: assigned [mem 0xf8104000-0xf810ffff 64bit]
[  188.110801] pci 0000:b2:00.0: BAR 7: set to [mem 0xf8104000-0xf810ffff 64bit] (PCI address [0xf8104000-0xf810ffff])
[  188.121256] pci 0000:b1:02.0: PCI bridge to [bus b2-b2]
[  188.126512] pci 0000:b1:02.0:   bridge window [mem 0xf8000000-0xf81fffff]
[  188.133328] pci 0000:b1:02.0:   bridge window [mem 0xf5000000-0xf50fffff pref]
[  188.140608] pci 0000:b3:00.0: reg 184: [mem 0x00000000-0x00003fff 64bit]
[  188.147341] pci 0000:b3:00.0: reg 18c: [mem 0x00000000-0x000fffff 64bit]
[  188.154076] pci 0000:b3:00.0: BAR 2: assigned [mem 0xf8200000-0xf82fffff 64bit]
[  188.161417] pci 0000:b3:00.0: BAR 2: set to [mem 0xf8200000-0xf82fffff 64bit] (PCI address [0xf8200000-0xf82fffff])
[  188.171865] pci 0000:b3:00.0: BAR 6: assigned [mem 0xf5100000-0xf51fffff pref]
[  188.179090] pci 0000:b3:00.0: BAR 0: assigned [mem 0xf8300000-0xf8303fff 64bit]
[  188.186431] pci 0000:b3:00.0: BAR 0: set to [mem 0xf8300000-0xf8303fff 64bit] (PCI address [0xf8300000-0xf8303fff])
[  188.196884] pci 0000:b3:00.0: reg 18c: [mem 0x00000000-0x000fffff 64bit]
[  188.203591] pci 0000:b3:00.0: BAR 9: assigned [mem 0xf8400000-0xf86fffff 64bit]
[  188.210909] pci 0000:b3:00.0: BAR 9: set to [mem 0xf8400000-0xf86fffff 64bit] (PCI address [0xf8400000-0xf86fffff])
[  188.221379] pci 0000:b3:00.0: reg 184: [mem 0x00000000-0x00003fff 64bit]
[  188.228089] pci 0000:b3:00.0: BAR 7: assigned [mem 0xf8304000-0xf830ffff 64bit]
[  188.235407] pci 0000:b3:00.0: BAR 7: set to [mem 0xf8304000-0xf830ffff 64bit] (PCI address [0xf8304000-0xf830ffff])
[  188.245843] pci 0000:b1:03.0: PCI bridge to [bus b3-b3]
[  188.251107] pci 0000:b1:03.0:   bridge window [mem 0xf8200000-0xf86fffff]
[  188.257922] pci 0000:b1:03.0:   bridge window [mem 0xf5100000-0xf51fffff pref]
[  188.265180] pci 0000:b0:00.0: PCI bridge to [bus b1-b3]
[  188.270443] pci 0000:b0:00.0:   bridge window [mem 0xf8000000-0xf89fffff]
[  188.277250] pci 0000:b0:00.0:   bridge window [mem 0xf5000000-0xf51fffff pref]
[  188.284512] pcieport 0000:80:02.2: PCI bridge to [bus b0-bf]
[  188.290184] pcieport 0000:80:02.2:   bridge window [io  0xa000-0xbfff]
[  188.296735] pcieport 0000:80:02.2:   bridge window [mem 0xf8000000-0xf8ffffff]
[  188.303963] pcieport 0000:80:02.2:   bridge window [mem 0xf5000000-0xf5ffffff 64bit pref]

Thus b2:00.0 BAR 9 does not get assigned...

root cause:
b1:02.0 can not be added more range, because b1:03.0 is just after it;
no space between the required ranges.

Solution:
Try to assign required + optional all together at first, and if that
fails, try again with just the required resources.

-v2: seperate add_to_list change() to another patch according to Jesse.
     seperate get_res_add_size() moving to another patch according to Jesse.
     add !realloc_head->next check if the list is empty to bail early
     according to Jesse.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI: Move get_res_add_size() function
Yinghai Lu [Sat, 21 Jan 2012 10:08:19 +0000 (02:08 -0800)]
PCI: Move get_res_add_size() function

Need to call it from __assign_resources_sorted() later and we'd like to
avoid a forward declaraion.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI: Make add_to_list() return status
Yinghai Lu [Sat, 21 Jan 2012 10:08:18 +0000 (02:08 -0800)]
PCI: Make add_to_list() return status

Will be used for resource_list_x duplication when trying
requested+optional at first.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI : Calculate right add_size
Yinghai Lu [Sat, 21 Jan 2012 10:08:17 +0000 (02:08 -0800)]
PCI : Calculate right add_size

During debug of one SRIOV enabled hotplug device, we found found that
add_size is not passed properly.

The device has devices under two level bridges:

 +-[0000:80]-+-00.0-[81-8f]--
 |           +-01.0-[90-9f]--
 |           +-02.0-[a0-af]----00.0-[a1-a3]--+-02.0-[a2]--+-00.0  Oracle Corporation Device
 |           |                               \-03.0-[a3]--+-00.0  Oracle Corporation Device

Which means later the parent bridge will not try to add a big enough range:

[  557.455077] pci 0000:a0:00.0: BAR 14: assigned [mem 0xf9000000-0xf93fffff]
[  557.461974] pci 0000:a0:00.0: BAR 15: assigned [mem 0xf6000000-0xf61fffff pref]
[  557.469340] pci 0000:a1:02.0: BAR 14: assigned [mem 0xf9000000-0xf91fffff]
[  557.476231] pci 0000:a1:02.0: BAR 15: assigned [mem 0xf6000000-0xf60fffff pref]
[  557.483582] pci 0000:a1:03.0: BAR 14: assigned [mem 0xf9200000-0xf93fffff]
[  557.490468] pci 0000:a1:03.0: BAR 15: assigned [mem 0xf6100000-0xf61fffff pref]
[  557.497833] pci 0000:a1:03.0: BAR 14: can't assign mem (size 0x200000)
[  557.504378] pci 0000:a1:03.0: failed to add optional resources res=[mem 0xf9200000-0xf93fffff]
[  557.513026] pci 0000:a1:02.0: BAR 14: can't assign mem (size 0x200000)
[  557.519578] pci 0000:a1:02.0: failed to add optional resources res=[mem 0xf9000000-0xf91fffff]

It turns out we did not calculate size1 properly.

static resource_size_t calculate_memsize(resource_size_t size,
                resource_size_t min_size,
                resource_size_t size1,
                resource_size_t old_size,
                resource_size_t align)
{
        if (size < min_size)
                size = min_size;
        if (old_size == 1 )
                old_size = 0;
        if (size < old_size)
                size = old_size;
        size = ALIGN(size + size1, align);
        return size;
}

We should not pass add_size with min_size in calculate_memsize since
that will make add_size not contribute final add_size.

So just pass add_size with size1 to calculate_memsize().

With this change, we should have chance to remove extra addon in
pci_reassign_resource.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI: Fix typo in setup-res.c
Masanari Iida [Thu, 26 Jan 2012 14:45:47 +0000 (23:45 +0900)]
PCI: Fix typo in setup-res.c

Correct spelling "resouce" to "resource" in
dricers/pci/setup-res.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agox86/PCI: don't fall back to defaults if _CRS has no apertures
Bjorn Helgaas [Wed, 18 Jan 2012 00:41:21 +0000 (17:41 -0700)]
x86/PCI: don't fall back to defaults if _CRS has no apertures

Host bridges that lead to things like the Uncore need not have any
I/O port or MMIO apertures.  For example, in this case:

    ACPI: PCI Root Bridge [UNC1] (domain 0000 [bus ff])
    PCI: root bus ff: using default resources
    PCI host bridge to bus 0000:ff
    pci_bus 0000:ff: root bus resource [io  0x0000-0xffff]
    pci_bus 0000:ff: root bus resource [mem 0x00000000-0x3fffffffffff]

we should not pretend those default resources are available on bus ff.

CC: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoxen/pciback: Support pci_reset_function, aka FLR or D3 support.
Konrad Rzeszutek Wilk [Thu, 12 Jan 2012 17:06:47 +0000 (12:06 -0500)]
xen/pciback: Support pci_reset_function, aka FLR or D3 support.

We use the __pci_reset_function_locked to perform the action.
Also on attaching ("bind") and detaching ("unbind") we save and
restore the configuration states. When the device is disconnected
from a guest we use the "pci_reset_function" to also reset the
device before being passed to another guest.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI: Introduce __pci_reset_function_locked to be used when holding device_lock.
Konrad Rzeszutek Wilk [Thu, 12 Jan 2012 17:06:46 +0000 (12:06 -0500)]
PCI: Introduce __pci_reset_function_locked to be used when holding device_lock.

The use case of this is when a driver wants to call FLR when a device
is attached to it using the SysFS "bind" or "unbind" functionality.

The call chain when a user does "bind" looks as so:

 echo "0000:01.07.0" > /sys/bus/pci/drivers/XXXX/bind

and ends up calling:
  driver_bind:
    device_lock(dev);  <=== TAKES LOCK
    XXXX_probe:
         .. pci_enable_device()
         ...__pci_reset_function(), which calls
                 pci_dev_reset(dev, 0):
                        if (!0) {
                                device_lock(dev) <==== DEADLOCK

The __pci_reset_function_locked function allows the the drivers
'probe' function to call the "pci_reset_function" while still holding
the driver mutex lock.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI: drivers/pci/hotplug/ibmphp_ebda.c: add missing iounmap
Julia Lawall [Thu, 12 Jan 2012 09:55:16 +0000 (10:55 +0100)]
PCI: drivers/pci/hotplug/ibmphp_ebda.c: add missing iounmap

Add missing iounmap in error handling code, in a case where the function
already preforms iounmap on some other execution path.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e;
statement S,S1;
int ret;
@@
e = \(ioremap\|ioremap_nocache\)(...)
... when != iounmap(e)
if (<+...e...+>) S
... when any
    when != iounmap(e)
*if (...)
   { ... when != iounmap(e)
     return ...; }
... when any
iounmap(e);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI: Can continually add funcs after adding func0
Amos Kong [Fri, 25 Nov 2011 07:03:07 +0000 (15:03 +0800)]
PCI: Can continually add funcs after adding func0

Boot up a KVM guest, and hotplug multifunction
devices(func1,func2,func0,func3) to guest.

for i in 1 2 0 3;do
qemu-img create /tmp/resize$i.qcow2 1G -f qcow2
(qemu) drive_add 0x11.$i id=drv11$i,if=none,file=/tmp/resize$i.qcow2
(qemu) device_add virtio-blk-pci,id=dev11$i,drive=drv11$i,addr=0x11.$i,multifunction=on
done

In linux kernel, when func0 of the slot is hot-added, the whole
slot will be marked as 'enabled', then driver will ignore other new
hotadded funcs.
But in Win7 & WinXP, we can continaully add other funcs after adding
func0, all funcs will be added in guest.

drivers/pci/hotplug/acpiphp_glue.c:
static int acpiphp_check_bridge(struct acpiphp_bridge *bridge)
{
....
        for (slot = bridge->slots; slot; slot = slot->next) {
                if (slot->flags & SLOT_ENABLED) {
                        acpiphp_disable_slot()
                else
                        acpiphp_enable_slot()
....                              |
}                                 v
                            enable_device()
                                  |
                                  v
        //only don't enable slot if func0 is not added
list_for_each_entry(func, &slot->funcs, sibling) {
               ...
        }
       slot->flags |= SLOT_ENABLED; //mark slot to 'enabled'

This patch just make pci driver can continaully add funcs after adding
func 0. Only mark slot to 'enabled' when all funcs are added.

For pci multifunction hotplug, we can add functions one by one(func 0 is
necessary), and all functions will be removed in one time.

Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agox86/PCI: Convert maintaining FW-assigned BIOS BAR values to use a list
Myron Stowe [Mon, 21 Nov 2011 18:54:19 +0000 (11:54 -0700)]
x86/PCI: Convert maintaining FW-assigned BIOS BAR values to use a list

This patch converts the underlying maintenance aspects of FW-assigned
BIOS BAR values from a statically allocated array within struct pci_dev
to a list of temporary, stand alone, entries.

Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agox86/PCI: Infrastructure to maintain a list of FW-assigned BIOS BAR values
Myron Stowe [Mon, 21 Nov 2011 18:54:13 +0000 (11:54 -0700)]
x86/PCI: Infrastructure to maintain a list of FW-assigned BIOS BAR values

Commit 58c84eda075 introduced functionality to try and reinstate the
original BIOS BAR addresses of a PCI device when normal resource
assignment attempts fail.  To keep track of the BIOS BAR addresses,
struct pci_dev was augmented with an array to hold the BAR addresses
of the PCI device: 'resource_size_t fw_addr[DEVICE_COUNT_RESOURCE]'.

The reinstatement of BAR addresses is an uncommon event leaving the
'fw_addr' array unused under normal circumstances.  This functionality
is also currently architecture specific with an implementation limited
to x86.  As the use of struct pci_dev is so prevalent, having the
'fw_addr' array residing within such seems somewhat wasteful.

This patch introduces a stand alone data structure and interfacing
routines for maintaining a list of FW-assigned BIOS BAR value entries.

Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI: Fix starting basis for resource requests
Myron Stowe [Mon, 21 Nov 2011 18:54:07 +0000 (11:54 -0700)]
PCI: Fix starting basis for resource requests

pci_revert_fw_address() is used to reinstate a PCI device's original
FW-assigned BIOS BAR value(s) if normal resource assignment fails.

When attempting to reinstate an address, the point within the resource
tree from which to attempt the new resource request should be the parent
resource corresponding to the device, not the base of the resource tree
(ioport_resource or iomem_resource).  For PCI devices this would
typically be the resource corresponding to the upstream PCI host bridge
or P2P bridge aperture.

This patch sets the point within the resource tree to attempt a new
resource assignment request to the PCI device's parent resource and only
if that fails does it fall back to the base ioport_resource or
iomem_resource.

Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI: Fix pci cardbus removal
Yinghai Lu [Sun, 5 Feb 2012 06:55:00 +0000 (22:55 -0800)]
PCI: Fix pci cardbus removal

During test busn_res allocation with cardbus, found pci card removal is not
working anymore, and it turns out it is broken by:

|commit 79cc9601c3e42b4f0650fe7e69132ebce7ab48f9
|Date:   Tue Nov 22 21:06:53 2011 -0800
|
|    PCI: Only call pci_stop_bus_device() one time for child devices at remove

The above changed the behavior of pci_remove_behind_bridge that
yenta_cardbus depended on.  So restore the old behavoir of
pci_remove_behind_bridge (which requires stopping and removing of all
devices) by:

1. rename pci_remove_behind_bridge to __pci_remove_behind_bridge, and let
   __pci_remove_bus_device() call it instead.
2. add pci_stop_behind_bridge that will stop devices behind a bridge
3. add back pci_remove_behind_bridge that will stop and remove devices
   under bridge.

-v2: update commit description a little bit.

Tested-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI: set pci sriov page size before reading SRIOV BAR
Vaidyanathan Srinivasan [Thu, 2 Feb 2012 17:41:20 +0000 (23:11 +0530)]
PCI: set pci sriov page size before reading SRIOV BAR

For an SRIOV device, PCI_SRIOV_SYS_PGSIZE should be set before
the PCI_SRIOV_BAR are queried.  The sys pagesize defaults to 4k,
so this change is required on powerpc box with 64k base page size.

This is a regression caused due to moving SRIOV init to sriov_enable().

| commit afd24ece5c76af87f6fc477f2747b83a764f161c
| Author: Ram Pai <linuxram@us.ibm.com>

| PCI: delay configuration of SRIOV capability
| The SRIOV capability, namely page size and total_vfs of a device are
| configured during enumeration phase of the device.  This can potentially
| interfere with the PCI operations of the platform, if the IOV capability
| of the device is not enabled.

Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Acked-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoPCI: workaround hard-wired bus number V2
Yinghai Lu [Mon, 30 Jan 2012 11:25:24 +0000 (12:25 +0100)]
PCI: workaround hard-wired bus number V2

Fixes PCI device detection on IBM xSeries IBM 3850 M2 / x3950 M2
when using ACPI resources (_CRS).
This is default, a manual workaround (without this patch)
would be pci=nocrs boot param.

V2: Add dev_warn if the workaround is hit. This should reveal
how common such setups are (via google) and point to possible
problems if things are still not working as expected.
-> Suggested by Jan Beulich.

Cc: stable@vger.kernel.org
Tested-by: garyhade@us.ibm.com
Signed-off-by: Yinghai Lu <yinghai.lu@oracle.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
12 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 27 Jan 2012 15:56:25 +0000 (07:56 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (31 commits)
  gma500: Fix suspend/resume functions
  drm/exynos: fixed pm feature for fimd module.
  MAINTAINERS: added maintainer entry for Exynos DRM Driver.
  drm/exynos: fixed build dependency for DRM_EXYNOS_FIMD
  drm/exynos: fix build dependency for DRM_EXYNOS_HDMI
  drm/exynos: use release_mem_region instead of release_resource
  agp: fix scratch page cleanup
  drm/i915: fixup forcewake spinlock fallout in drpc debugfs function
  drm/i915: debugfs: show semaphore registers also on gen7
  drm/i915: allow userspace forcewake references also on gen7
  drm/i915: Re-enable gen7 RC6 and GPU turbo after resume.
  drm/i915: Correct debugfs printout for RC1e.
  Revert "drm/i915: Work around gen7 BLT ring synchronization issues."
  drm/i915: rip out the HWSTAM missed irq workaround
  drm/i915: paper over missed irq issues with force wake voodoo
  drm/i915: Hold gt_lock across forcewake register reads
  drm/i915: Hold gt_lock during reset
  drm/i915: Move reset forcewake processing to gen6_do_reset
  drm/i915: protect force_wake_(get|put) with the gt_lock
  drm/i915: convert force_wake_get to func pointer in the gpu reset code
  ...

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Fri, 27 Jan 2012 15:53:06 +0000 (07:53 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix silent output on Haier W18 laptop
  ALSA: hda: set mute led polarity for laptops with buggy BIOS based on SSID
  ALSA: hda - Fix silent output on ASUS A6Rp
  ALSA: Fix memory leak on error in snd_compr_set_params()
  ALSA: ymfpci - Don't create invalid PCM & mixers when AC97 doesn't support

12 years agogma500: Fix suspend/resume functions
Ryan Mallon [Fri, 27 Jan 2012 06:28:24 +0000 (17:28 +1100)]
gma500: Fix suspend/resume functions

Both the suspend and resume functions incorrectly set psbfb =
to_psb_fb(NULL) outside of the loop over all of the framebuffers. Fix
this by moving the assignment of psbfb inside the loop and removing the
initialisation of fb.

Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agoMerge branch 'exynos-drm-fixes' of git://git.infradead.org/users/kmpark/linux-samsung...
Dave Airlie [Fri, 27 Jan 2012 07:16:27 +0000 (07:16 +0000)]
Merge branch 'exynos-drm-fixes' of git://git.infradead.org/users/kmpark/linux-samsung into drm-fixes

* 'exynos-drm-fixes' of git://git.infradead.org/users/kmpark/linux-samsung:
  drm/exynos: fixed pm feature for fimd module.
  MAINTAINERS: added maintainer entry for Exynos DRM Driver.
  drm/exynos: fixed build dependency for DRM_EXYNOS_FIMD
  drm/exynos: fix build dependency for DRM_EXYNOS_HDMI
  drm/exynos: use release_mem_region instead of release_resource

12 years agodrm/exynos: fixed pm feature for fimd module.
Inki Dae [Fri, 27 Jan 2012 02:54:58 +0000 (11:54 +0900)]
drm/exynos: fixed pm feature for fimd module.

this patch separates fimd specific power on/off function from pm function
and the pm interfaces will call that function for power on or off.
and also removes unnecessary codes of resume function.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
12 years agoMAINTAINERS: added maintainer entry for Exynos DRM Driver.
Inki Dae [Tue, 17 Jan 2012 05:08:55 +0000 (14:08 +0900)]
MAINTAINERS: added maintainer entry for Exynos DRM Driver.

I'd like to add my colleagues who dedicated to developing and
improving our driver to maintainer entry.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
12 years agodrm/exynos: fixed build dependency for DRM_EXYNOS_FIMD
Inki Dae [Mon, 16 Jan 2012 09:55:02 +0000 (18:55 +0900)]
drm/exynos: fixed build dependency for DRM_EXYNOS_FIMD

FB based FIMD and DRM based FIMD drivers use same hardware
so with this patch, only one of them would be selected.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
12 years agodrm/exynos: fix build dependency for DRM_EXYNOS_HDMI
Seung-Woo Kim [Wed, 4 Jan 2012 06:34:32 +0000 (15:34 +0900)]
drm/exynos: fix build dependency for DRM_EXYNOS_HDMI

DRM_EXYNOS_HDMI driver and VIDEO_SAMSUNG_S5P_TV driver should be
not enabled at once because they use same HW blocks. So dependency
for DRM_EXYNOS_HDMI is fixed to check VIDEO_SAMSUNG_S5P_TV=n.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
12 years agodrm/exynos: use release_mem_region instead of release_resource
Seung-Woo Kim [Thu, 22 Dec 2011 02:30:09 +0000 (11:30 +0900)]
drm/exynos: use release_mem_region instead of release_resource

To make a api pair of request_mem_region and release_mem_region,
release_mem_region is used instead of release_resource.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
12 years agoMerge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Fri, 27 Jan 2012 01:04:47 +0000 (17:04 -0800)]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-media

* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  [media] cinergyT2-fe: Fix bandwdith settings
  [media] V4L: atmel-isi: add clk_prepare()/clk_unprepare() functions
  [media] cxd2820r: sleep on DVB-T/T2 delivery system switch
  [media] anysee: fix CI init
  [media] cxd2820r: remove unused parameter from cxd2820r_attach
  [media] cxd2820r: fix dvb_frontend_ops

12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Fri, 27 Jan 2012 01:00:38 +0000 (17:00 -0800)]
Merge git://git./linux/kernel/git/davem/sparc

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc32: forced setting of mode of sun4m per-cpu timers

12 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 26 Jan 2012 20:46:07 +0000 (12:46 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode_amd: Add support for CPU family specific container files
  x86/amd: Add missing feature flag for fam15h models 10h-1fh processors
  x86/boot-image: Don't leak phdrs in arch/x86/boot/compressed/misc.c::Parse_elf()
  x86/numachip: Drop unnecessary conflict with EDAC
  x86/uv: Fix uninitialized spinlocks
  x86/uv: Fix uv_gpa_to_soc_phys_ram() shift

12 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 26 Jan 2012 20:45:57 +0000 (12:45 -0800)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Call perf_cgroup_event_time() directly
  perf: Don't call release_callchain_buffers() if allocation fails

12 years agoMerge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 26 Jan 2012 20:45:41 +0000 (12:45 -0800)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rcu: Add missing __cpuinit annotation in rcutorture code
  sched: Add "const" to is_idle_task() parameter
  rcu: Make rcutorture bool parameters really bool (core code)
  memblock: Fix alloc failure due to dumb underflow protection in memblock_find_in_range_node()

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux...
Linus Torvalds [Thu, 26 Jan 2012 20:43:57 +0000 (12:43 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/geert/linux-m68k

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Fix assembler constraint to prevent overeager gcc optimisation
  mac_esp: rename irq
  mac_scsi: dont enable mac_scsi irq before requesting it
  macfb: fix black and white modes
  m68k/irq: Remove obsolete IRQ_FLG_* definitions

Fix up trivial conflict in arch/m68k/kernel/process_mm.c as per Geert.

12 years agoagp: fix scratch page cleanup
Michal Kubecek [Wed, 25 Jan 2012 15:51:05 +0000 (16:51 +0100)]
agp: fix scratch page cleanup

In error cleanup of agp_backend_initialize() and in agp_backend_cleanup(),
agp_destroy_page() is passed virtual address of the scratch page. This
leads to a kernel warning if the initialization fails (or upon regular
cleanup) as pointer to struct page should be passed instead.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agoMerge branch 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux into...
Dave Airlie [Thu, 26 Jan 2012 18:25:54 +0000 (18:25 +0000)]
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux into drm-fixes

* 'drm-intel-fixes' of git://people.freedesktop.org/~keithp/linux: (24 commits)
  drm/i915: fixup forcewake spinlock fallout in drpc debugfs function
  drm/i915: debugfs: show semaphore registers also on gen7
  drm/i915: allow userspace forcewake references also on gen7
  drm/i915: Re-enable gen7 RC6 and GPU turbo after resume.
  drm/i915: Correct debugfs printout for RC1e.
  Revert "drm/i915: Work around gen7 BLT ring synchronization issues."
  drm/i915: rip out the HWSTAM missed irq workaround
  drm/i915: paper over missed irq issues with force wake voodoo
  drm/i915: Hold gt_lock across forcewake register reads
  drm/i915: Hold gt_lock during reset
  drm/i915: Move reset forcewake processing to gen6_do_reset
  drm/i915: protect force_wake_(get|put) with the gt_lock
  drm/i915: convert force_wake_get to func pointer in the gpu reset code
  drm/i915: sprite init failure on pre-SNB is not a failure
  drm/i915: VBT Parser cleanup for eDP block
  drm/i915: mask transcoder select bits before setting them on LVDS
  drm/i915: Add Clientron E830 to the ignore LVDS list
  CHROMIUM: i915: Add DMI override to skip CRT initialization on ZGB
  drm/i915: handle 3rd pipe
  drm/i915: simplify pipe checking
  ...

12 years agoALSA: hda - Fix silent output on Haier W18 laptop
Takashi Iwai [Thu, 26 Jan 2012 14:56:16 +0000 (15:56 +0100)]
ALSA: hda - Fix silent output on Haier W18 laptop

The very same problem is seen on Haier W18 laptop with ALC861 as seen
on ASUS A6Rp, which was fixed by the commit 3b25eb69.
Now we just need to add a new SSID entry pointing to the same fixup.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42656

Cc: <stable@kernel.org> [v3.2+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agox86/microcode_amd: Add support for CPU family specific container files
Andreas Herrmann [Fri, 20 Jan 2012 16:44:12 +0000 (17:44 +0100)]
x86/microcode_amd: Add support for CPU family specific container files

We've decided to provide CPU family specific container files
(starting with CPU family 15h). E.g. for family 15h we have to
load microcode_amd_fam15h.bin instead of microcode_amd.bin

Rationale is that starting with family 15h patch size is larger
than 2KB which was hard coded as maximum patch size in various
microcode loaders (not just Linux).

Container files which include patches larger than 2KB cause
different kinds of trouble with such old patch loaders. Thus we
have to ensure that the default container file provides only
patches with size less than 2KB.

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/20120120164412.GD24508@alberich.amd.com
[ documented the naming convention and tidied the code a bit. ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
12 years agox86/amd: Add missing feature flag for fam15h models 10h-1fh processors
Andreas Herrmann [Fri, 20 Jan 2012 16:38:23 +0000 (17:38 +0100)]
x86/amd: Add missing feature flag for fam15h models 10h-1fh processors

That is the last one missing for those CPUs.

Others were recently added with commits

 fb215366b3c7320ac25dca766a0152df16534932
 (KVM: expose latest Intel cpu new features (BMI1/BMI2/FMA/AVX2) to guest)

and

 commit 969df4b82904a30fef19a67398a0c854d223ea67
 (x86: Report cpb and eff_freq_ro flags correctly)

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Link: http://lkml.kernel.org/r/20120120163823.GC24508@alberich.amd.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
12 years agox86/boot-image: Don't leak phdrs in arch/x86/boot/compressed/misc.c::Parse_elf()
Jesper Juhl [Mon, 23 Jan 2012 22:34:59 +0000 (23:34 +0100)]
x86/boot-image: Don't leak phdrs in arch/x86/boot/compressed/misc.c::Parse_elf()

We allocate memory with malloc(), but neglect to free it before
the variable 'phdrs' goes out of scope --> leak.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Link: http://lkml.kernel.org/r/alpine.LNX.2.00.1201232332590.8772@swampdragon.chaosbits.net
[ Mostly harmless. ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
12 years agox86/numachip: Drop unnecessary conflict with EDAC
Daniel J Blueman [Wed, 25 Jan 2012 06:35:49 +0000 (14:35 +0800)]
x86/numachip: Drop unnecessary conflict with EDAC

EDAC detection no longer crashes multi-node systems, so don't
conflict on it with NumaChip.

Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com>
Cc: Steffen Persvold <sp@numascale.com>
Link: http://lkml.kernel.org/r/1327473349-28395-1-git-send-email-daniel@numascale-asia.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
12 years agox86/uv: Fix uninitialized spinlocks
Cliff Wickman [Wed, 18 Jan 2012 15:40:47 +0000 (09:40 -0600)]
x86/uv: Fix uninitialized spinlocks

Initialize two spinlocks in tlb_uv.c and also properly define/initialize
the uv_irq_lock.

The lack of explicit initialization seems to be functionally
harmless, but it is diagnosed when these are turned on:

        CONFIG_DEBUG_SPINLOCK=y
        CONFIG_DEBUG_MUTEXES=y
        CONFIG_DEBUG_LOCK_ALLOC=y
        CONFIG_LOCKDEP=y

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Cc: <stable@kernel.org>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Link: http://lkml.kernel.org/r/E1RnXd1-0003wU-PM@eag09.americas.sgi.com
[ Added the uv_irq_lock initialization fix by Dimitri Sivanich ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
12 years agox86/uv: Fix uv_gpa_to_soc_phys_ram() shift
Russ Anderson [Thu, 19 Jan 2012 02:07:54 +0000 (20:07 -0600)]
x86/uv: Fix uv_gpa_to_soc_phys_ram() shift

uv_gpa_to_soc_phys_ram() was inadvertently ignoring the
shift values.  This fix takes the shift into account.

Signed-off-by: Russ Anderson <rja@sgi.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/20120119020753.GA7228@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Thu, 26 Jan 2012 03:28:58 +0000 (19:28 -0800)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: sha512 - reduce stack usage to safe number
  crypto: sha512 - make it work, undo percpu message schedule

12 years agoMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Wed, 25 Jan 2012 23:36:44 +0000 (15:36 -0800)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

Quoth Ben Myers:
 "Please pull in the following bugfix for xfs.  We forgot to drop a lock on
  error in xfs_readlink.  It hasn't been through -next yet, but there is no
  -next tree tomorrow.  The fix is clear so I'm sending this request today."

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: Fix missing xfs_iunlock() on error recovery path in xfs_readlink()

12 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Wed, 25 Jan 2012 23:24:30 +0000 (15:24 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/ttm: fix two regressions since move_notify changes
  drm/radeon: avoid deadlock if GPU lockup is detected in ib_pool_get
  drm/radeon: silence out possible lock dependency warning
  drm: Fix authentication kernel crash
  gma500: Fix shmem mapping
  drm/radeon/kms: refine TMDS dual link checks
  drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode
  drm/radeon/kms: rework modeset sequence for DCE41 and DCE5
  drm/radeon/kms: move panel mode setup into encoder mode set
  drm/radeon/kms: move disp eng pll setup to init path
  drm/radeon: finish getting bios earlier
  drm/radeon: fix invalid memory access in radeon_atrm_get_bios()
  drm/radeon/kms: add some missing semaphore init
  drm/radeon/kms: Add an MSI quirk for Dell RS690
  gpu, drm, sis: Don't return uninitialized variable from sis_driver_load()

12 years agoMerge branch 'fix/asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Wed, 25 Jan 2012 23:13:04 +0000 (15:13 -0800)]
Merge branch 'fix/asoc' of git://git./linux/kernel/git/tiwai/sound

* 'fix/asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: wm2000: Fix use-after-free - don't release_firmware() twice on error
  ASoC: wm8958: Use correct format string in dev_err() call
  ASoC: wm8996: Call _POST_PMU callback for CPVDD
  ASoC: mxs: Fix mxs-saif timeout
  ASoC: Disable register synchronisation for low frequency WM8996 SYSCLK
  ASoC: Don't go through cache when applying WM5100 rev A updates
  ASoC: Mark WM5100 register map cache only when going into BIAS_OFF
  ASoC: tlv320aic32x4: always enable analouge block
  ASoC: tlv320aic32x4: always enable dividers
  ASoC: sgtl5000: Fix wrong register name in restore

12 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Linus Torvalds [Wed, 25 Jan 2012 23:11:57 +0000 (15:11 -0800)]
Merge tag 'for-linus' of git://git./linux/kernel/git/broonie/regmap

A fairly simple bugfix for a WARN_ON() which was triggered in the cache
reset support as a result of some subsequent work.  There's only one
mainline user for the code path that's updated right now (wm8994) so
should be low risk.

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: Reset cache status when reinitialsing the cache

12 years agoeCryptfs: move misleading function comments
Li Wang [Wed, 25 Jan 2012 07:40:31 +0000 (15:40 +0800)]
eCryptfs: move misleading function comments

 The data encryption was moved from ecryptfs_write_end into
ecryptfs_writepage, this patch moves the corresponding function
comments to be consistent with the modification.

Signed-off-by: Li Wang <liwang@nudt.edu.cn>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks...
Linus Torvalds [Wed, 25 Jan 2012 23:03:04 +0000 (15:03 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tyhicks/ecryptfs

Says Tyler:
 "Tim's logging message update will be really helpful to users when
  they're trying to locate a problematic file in the lower filesystem
  with filename encryption enabled.

  You'll recognize the fix from Li, as you commented on that.

  You should also be familiar with my setattr/truncate improvements,
  since you were the one that pointed them out to us (thanks again!).
  Andrew noted the /dev/ecryptfs write count sanitization needed to be
  improved, so I've got a fix in there for that along with some other
  less important cleanups of the /dev/ecryptfs read/write code."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
  eCryptfs: Fix oops when printing debug info in extent crypto functions
  eCryptfs: Remove unused ecryptfs_read()
  eCryptfs: Check inode changes in setattr
  eCryptfs: Make truncate path killable
  eCryptfs: Infinite loop due to overflow in ecryptfs_write()
  eCryptfs: Replace miscdev read/write magic numbers
  eCryptfs: Report errors in writes to /dev/ecryptfs
  eCryptfs: Sanitize write counts of /dev/ecryptfs
  ecryptfs: Remove unnecessary variable initialization
  ecryptfs: Improve metadata read failure logging
  MAINTAINERS: Update eCryptfs maintainer address

12 years agoeCryptfs: Fix oops when printing debug info in extent crypto functions
Tyler Hicks [Tue, 24 Jan 2012 16:02:22 +0000 (10:02 -0600)]
eCryptfs: Fix oops when printing debug info in extent crypto functions

If pages passed to the eCryptfs extent-based crypto functions are not
mapped and the module parameter ecryptfs_verbosity=1 was specified at
loading time, a NULL pointer dereference will occur.

Note that this wouldn't happen on a production system, as you wouldn't
pass ecryptfs_verbosity=1 on a production system. It leaks private
information to the system logs and is for debugging only.

The debugging info printed in these messages is no longer very useful
and rather than doing a kmap() in these debugging paths, it will be
better to simply remove the debugging paths completely.

https://launchpad.net/bugs/913651

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reported-by: Daniel DeFreez
Cc: <stable@vger.kernel.org>
12 years agoeCryptfs: Remove unused ecryptfs_read()
Tyler Hicks [Wed, 18 Jan 2012 21:09:43 +0000 (15:09 -0600)]
eCryptfs: Remove unused ecryptfs_read()

ecryptfs_read() has been ifdef'ed out for years now and it was
apparently unused before then. It is time to get rid of it for good.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
12 years agoeCryptfs: Check inode changes in setattr
Tyler Hicks [Fri, 20 Jan 2012 02:33:44 +0000 (20:33 -0600)]
eCryptfs: Check inode changes in setattr

Most filesystems call inode_change_ok() very early in ->setattr(), but
eCryptfs didn't call it at all. It allowed the lower filesystem to make
the call in its ->setattr() function. Then, eCryptfs would copy the
appropriate inode attributes from the lower inode to the eCryptfs inode.

This patch changes that and actually calls inode_change_ok() on the
eCryptfs inode, fairly early in ecryptfs_setattr(). Ideally, the call
would happen earlier in ecryptfs_setattr(), but there are some possible
inode initialization steps that must happen first.

Since the call was already being made on the lower inode, the change in
functionality should be minimal, except for the case of a file extending
truncate call. In that case, inode_newsize_ok() was never being
called on the eCryptfs inode. Rather than inode_newsize_ok() catching
maximum file size errors early on, eCryptfs would encrypt zeroed pages
and write them to the lower filesystem until the lower filesystem's
write path caught the error in generic_write_checks(). This patch
introduces a new function, called ecryptfs_inode_newsize_ok(), which
checks if the new lower file size is within the appropriate limits when
the truncate operation will be growing the lower file.

In summary this change prevents eCryptfs truncate operations (and the
resulting page encryptions), which would exceed the lower filesystem
limits or FSIZE rlimits, from ever starting.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reviewed-by: Li Wang <liwang@nudt.edu.cn>
Cc: <stable@vger.kernel.org>
12 years agoeCryptfs: Make truncate path killable
Tyler Hicks [Thu, 19 Jan 2012 00:30:04 +0000 (18:30 -0600)]
eCryptfs: Make truncate path killable

ecryptfs_write() handles the truncation of eCryptfs inodes. It grabs a
page, zeroes out the appropriate portions, and then encrypts the page
before writing it to the lower filesystem. It was unkillable and due to
the lack of sparse file support could result in tying up a large portion
of system resources, while encrypting pages of zeros, with no way for
the truncate operation to be stopped from userspace.

This patch adds the ability for ecryptfs_write() to detect a pending
fatal signal and return as gracefully as possible. The intent is to
leave the lower file in a useable state, while still allowing a user to
break out of the encryption loop. If a pending fatal signal is detected,
the eCryptfs inode size is updated to reflect the modified inode size
and then -EINTR is returned.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Cc: <stable@vger.kernel.org>
12 years agoeCryptfs: Infinite loop due to overflow in ecryptfs_write()
Li Wang [Thu, 19 Jan 2012 01:44:36 +0000 (09:44 +0800)]
eCryptfs: Infinite loop due to overflow in ecryptfs_write()

ecryptfs_write() can enter an infinite loop when truncating a file to a
size larger than 4G. This only happens on architectures where size_t is
represented by 32 bits.

This was caused by a size_t overflow due to it incorrectly being used to
store the result of a calculation which uses potentially large values of
type loff_t.

[tyhicks@canonical.com: rewrite subject and commit message]
Signed-off-by: Li Wang <liwang@nudt.edu.cn>
Signed-off-by: Yunchuan Wen <wenyunchuan@kylinos.com.cn>
Reviewed-by: Cong Wang <xiyou.wangcong@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
12 years agoeCryptfs: Replace miscdev read/write magic numbers
Tyler Hicks [Sat, 14 Jan 2012 15:46:46 +0000 (16:46 +0100)]
eCryptfs: Replace miscdev read/write magic numbers

ecryptfs_miscdev_read() and ecryptfs_miscdev_write() contained many
magic numbers for specifying packet header field sizes and offsets. This
patch defines those values and replaces the magic values.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
12 years agoeCryptfs: Report errors in writes to /dev/ecryptfs
Tyler Hicks [Sat, 14 Jan 2012 14:51:37 +0000 (15:51 +0100)]
eCryptfs: Report errors in writes to /dev/ecryptfs

Errors in writes to /dev/ecryptfs were being incorrectly reported by
returning 0 or the value of the original write count.

This patch clears up the return code assignment in error paths.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
12 years agoeCryptfs: Sanitize write counts of /dev/ecryptfs
Tyler Hicks [Thu, 12 Jan 2012 10:30:44 +0000 (11:30 +0100)]
eCryptfs: Sanitize write counts of /dev/ecryptfs

A malicious count value specified when writing to /dev/ecryptfs may
result in a a very large kernel memory allocation.

This patch peeks at the specified packet payload size, adds that to the
size of the packet headers and compares the result with the write count
value. The resulting maximum memory allocation size is approximately 532
bytes.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reported-by: Sasha Levin <levinsasha928@gmail.com>
Cc: <stable@vger.kernel.org>
12 years agoecryptfs: Remove unnecessary variable initialization
Tim Gardner [Thu, 12 Jan 2012 15:31:55 +0000 (16:31 +0100)]
ecryptfs: Remove unnecessary variable initialization

Removes unneeded variable initialization in ecryptfs_read_metadata(). Also adds
a small comment to help explain metadata reading logic.

[tyhicks@canonical.com: Pulled out of for-stable patch and wrote commit msg]
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
12 years agoecryptfs: Improve metadata read failure logging
Tim Gardner [Thu, 12 Jan 2012 15:31:55 +0000 (16:31 +0100)]
ecryptfs: Improve metadata read failure logging

Print inode on metadata read failure. The only real
way of dealing with metadata read failures is to delete
the underlying file system file. Having the inode
allows one to 'find . -inum INODE`.

[tyhicks@canonical.com: Removed some minor not-for-stable parts]
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
12 years agoMAINTAINERS: Update eCryptfs maintainer address
Dustin Kirkland [Wed, 7 Dec 2011 14:56:49 +0000 (08:56 -0600)]
MAINTAINERS: Update eCryptfs maintainer address

Update my email address in MAINTAINERS.

Signed-off-by: Dustin Kirkland <dustin.kirkland@gazzang.com>
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
12 years agodrm/ttm: fix two regressions since move_notify changes
Ben Skeggs [Wed, 25 Jan 2012 05:34:22 +0000 (15:34 +1000)]
drm/ttm: fix two regressions since move_notify changes

Both changes in dc97b3409a790d2a21aac6e5cdb99558b5944119 cause serious
regressions in the nouveau driver.

move_notify() was originally able to presume that bo->mem is the old node,
and new_mem is the new node.  The above commit moves the call to
move_notify() to after move() has been done, which means that now, sometimes,
new_mem isn't the new node at all, bo->mem is, and new_mem points at a
stale, possibly-just-been-killed-by-move node.

This is clearly not a good situation.  This patch reverts this change, and
replaces it with a cleanup in the move() failure path instead.

The second issue is that the call to move_notify() from cleanup_memtype_use()
causes the TTM ghost objects to get passed into the driver.  This is clearly
bad as the driver knows nothing about these "fake" TTM BOs, and ends up
accessing uninitialised memory.

I worked around this in nouveau's move_notify() hook by ensuring the BO
destructor was nouveau's.  I don't particularly like this solution, and
would rather TTM never pass the driver these objects.  However, I don't
clearly understand the reason why we're calling move_notify() here anyway
and am happy to work around the problem in nouveau instead of breaking the
behaviour expected by other drivers.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Jerome Glisse <j.glisse@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agodrm/i915: fixup forcewake spinlock fallout in drpc debugfs function
Daniel Vetter [Wed, 25 Jan 2012 12:52:43 +0000 (13:52 +0100)]
drm/i915: fixup forcewake spinlock fallout in drpc debugfs function

My forcewake spinlock patches have a functional conflict with Ben
Widawsky's gen6 drpc support for debugfs. Result was a benign warning
about trying to read an non-atomic variabla with atomic_read.

Note that the entire check is racy anyway and purely informational.
Also update it to reflect the forcewake voodoo changes, the kernel can
now also hold onto a forcewake reference for longer times.

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
12 years agoxfs: Fix missing xfs_iunlock() on error recovery path in xfs_readlink()
Jan Kara [Wed, 11 Jan 2012 18:52:10 +0000 (18:52 +0000)]
xfs: Fix missing xfs_iunlock() on error recovery path in xfs_readlink()

Commit b52a360b forgot to call xfs_iunlock() when it detected corrupted
symplink and bailed out. Fix it by jumping to 'out' instead of doing return.

CC: stable@kernel.org
CC: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Alex Elder <elder@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
12 years agodrm/radeon: avoid deadlock if GPU lockup is detected in ib_pool_get
Jerome Glisse [Mon, 23 Jan 2012 16:52:15 +0000 (11:52 -0500)]
drm/radeon: avoid deadlock if GPU lockup is detected in ib_pool_get

If GPU lockup is detected in ib_pool get we are holding the ib_pool
mutex that will be needed by the GPU reset code. As ib_pool code is
safe to be reentrant from GPU reset code we should not block if we
are trying to get the ib pool lock on the behalf of the same userspace
caller, thus use the radeon_mutex_lock helper.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agodrm/radeon: silence out possible lock dependency warning
Jerome Glisse [Tue, 24 Jan 2012 17:08:52 +0000 (12:08 -0500)]
drm/radeon: silence out possible lock dependency warning

Silence out the lock dependency warning by moving bo allocation out
of ib mutex protected section. Might lead to useless temporary
allocation but it's not harmful as such things only happen at
initialization.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agodrm: Fix authentication kernel crash
Thomas Hellstrom [Tue, 24 Jan 2012 17:54:21 +0000 (18:54 +0100)]
drm: Fix authentication kernel crash

If the master tries to authenticate a client using drm_authmagic and
that client has already closed its drm file descriptor,
either wilfully or because it was terminated, the
call to drm_authmagic will dereference a stale pointer into kmalloc'ed memory
and corrupt it.

Typically this results in a hard system hang.

This patch fixes that problem by removing any authentication tokens
(struct drm_magic_entry) open for a file descriptor when that file
descriptor is closed.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agoALSA: hda: set mute led polarity for laptops with buggy BIOS based on SSID
Gustavo Maciel Dias Vieira [Tue, 24 Jan 2012 15:27:56 +0000 (13:27 -0200)]
ALSA: hda: set mute led polarity for laptops with buggy BIOS based on SSID

HP laptop models with buggy BIOS are apparently frequent, including
machines with different codecs. Set the polarity of the mute led based
on the SSID and include an entry for the HP Mini 110-3100.

Signed-off-by: Gustavo Maciel Dias Vieira <gustavo@sagui.org>
Tested-by: Predrag Ivanovic <predivan@open.telekom.rs>
Cc: <stable@kernel.org> [v3.2+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoALSA: hda - Fix silent output on ASUS A6Rp
Takashi Iwai [Wed, 25 Jan 2012 08:55:46 +0000 (09:55 +0100)]
ALSA: hda - Fix silent output on ASUS A6Rp

The refactoring of Realtek codec driver in 3.2 kernel caused a
regression for ASUS A6Rp laptop; it doesn't give any output.
The reason was that this machine has a secret master mute (or EAPD)
control via NID 0x0f VREF.  Setting VREF50 on this node makes the
sound working again.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42588

Cc: <stable@kernel.org> [v3.2+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Linus Torvalds [Wed, 25 Jan 2012 06:05:44 +0000 (22:05 -0800)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux

Quoth Len:
 "This fixes a merge-window regression due to a conflict
  between error injection and preparation to remove atomicio.c
  Here we fix that regression and complete the removal
  of atomicio.c.

  This also re-orders some idle initialization code to
  complete the merge window series that allows cpuidle
  to cope with bringing processors on-line after boot."

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  Use acpi_os_map_memory() instead of ioremap() in einj driver
  ACPI, APEI, EINJ, cleanup 0 vs NULL confusion
  ACPI, APEI, EINJ Allow empty Trigger Error Action Table
  thermal: Rename generate_netlink_event
  ACPI / PM: Add Sony Vaio VPCCW29FX to nonvs blacklist.
  ACPI: Remove ./drivers/acpi/atomicio.[ch]
  ACPI, APEI: Add RAM mapping support to ACPI
  ACPI, APEI: Add 64-bit read/write support for APEI on i386
  ACPI processor hotplug: Delay acpi_processor_start() call for hotplugged cores
  ACPI processor hotplug: Split up acpi_processor_add

12 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Wed, 25 Jan 2012 05:17:51 +0000 (21:17 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Fix build on some non-freescale platforms
  powerpc/powernv: Fix PCI resource handling
  powerpc/crash: Fix build error without SMP
  powerpc/cpuidle: Make it a bool, not a tristate
  powerpc/85xx: Add dr_mode property in USB nodes
  powerpc/85xx: Enable USB2 controller node for P1020RDB
  powerpc/85xx: Fix cmd12 bug and add the chip compatible for eSDHC
  arch/powerpc/sysdev/fsl_pci.c: add missing iounmap
  powerpc: fix compile error with 85xx/p1022_ds.c

12 years agopowerpc: Fix build on some non-freescale platforms
Benjamin Herrenschmidt [Wed, 25 Jan 2012 02:33:22 +0000 (13:33 +1100)]
powerpc: Fix build on some non-freescale platforms

Commit 9deaa53ac7fa373623123aa4f18828dd62292b1a broke build
on platforms that use legacy_serial.c without also having
CONFIG_SERIAL_8250_FSL enabled due to an unconditional code
to a routine in that module.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
12 years agopowerpc/powernv: Fix PCI resource handling
Benjamin Herrenschmidt [Wed, 25 Jan 2012 02:31:56 +0000 (13:31 +1100)]
powerpc/powernv: Fix PCI resource handling

Recent changes to the handling of PCI resources for host bridges
are breaking the PowerNV code for assigning resources on IODA.

The root of the problem is that the pci_bus attached to a host
bridge no longer has its "legacy" resource pointers populated
but only uses the newer list instead.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Tue, 24 Jan 2012 23:51:40 +0000 (15:51 -0800)]
Merge git://git./linux/kernel/git/davem/net

Davem says:

1) Fix JIT code generation on x86-64 for divide by zero, from Eric Dumazet.

2) tg3 header length computation correction from Eric Dumazet.

3) More build and reference counting fixes for socket memory cgroup
   code from Glauber Costa.

4) module.h snuck back into a core header after all the hard work we
   did to remove that, from Paul Gortmaker and Jesper Dangaard Brouer.

5) Fix PHY naming regression and add some new PCI IDs in stmmac, from
   Alessandro Rubini.

6) Netlink message generation fix in new team driver, should only advertise
   the entries that changed during events, from Jiri Pirko.

7) SRIOV VF registration and unregistration fixes, and also add a
   missing PCI ID, from Roopa Prabhu.

8) Fix infinite loop in tx queue flush code of brcmsmac, from Stanislaw Gruszka.

9) ftgmac100/ftmac100 build fix, missing interrupt.h include.

10) Memory leak fix in net/hyperv do_set_mutlicast() handling, from Wei Yongjun.

11) Off by one fix in netem packet scheduler, from Vijay Subramanian.

12) TCP loss detection fix from Yuchung Cheng.

13) TCP reset packet MD5 calculation uses wrong address, fix from Shawn Lu.

14) skge carrier assertion and DMA mapping fixes from Stephen Hemminger.

15) Congestion recovery undo performed at the wrong spot in BIC and CUBIC
    congestion control modules, fix from Neal Cardwell.

16) Ethtool ETHTOOL_GSSET_INFO is unnecessarily restrictive, from Michał Mirosław.

17) Fix triggerable race in ipv6 sysctl handling, from Francesco Ruggeri.

18) Statistics bug fixes in mlx4 from Eugenia Emantayev.

19) rds locking bug fix during info dumps, from your's truly.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (67 commits)
  rds: Make rds_sock_lock BH rather than IRQ safe.
  netprio_cgroup.h: dont include module.h from other includes
  net: flow_dissector.c missing include linux/export.h
  team: send only changed options/ports via netlink
  net/hyperv: fix possible memory leak in do_set_multicast()
  drivers/net: dsa/mv88e6xxx.c files need linux/module.h
  stmmac: added PCI identifiers
  llc: Fix race condition in llc_ui_recvmsg
  stmmac: fix phy naming inconsistency
  dsa: Add reporting of silicon revision for Marvell 88E6123/88E6161/88E6165 switches.
  tg3: fix ipv6 header length computation
  skge: add byte queue limit support
  mv643xx_eth: Add Rx Discard and Rx Overrun statistics
  bnx2x: fix compilation error with SOE in fw_dump
  bnx2x: handle CHIP_REVISION during init_one
  bnx2x: allow user to change ring size in ISCSI SD mode
  bnx2x: fix Big-Endianess in ethtool -t
  bnx2x: fixed ethtool statistics for MF modes
  bnx2x: credit-leakage fixup on vlan_mac_del_all
  macvlan: fix a possible use after free
  ...

12 years agopowerpc/crash: Fix build error without SMP
Christian Kujau [Tue, 17 Jan 2012 19:13:05 +0000 (19:13 +0000)]
powerpc/crash: Fix build error without SMP

I could not find cpus_in_crash anywhere in the sourcetree, except for
arch/powerpc/kernel/crash.c. Moving the definition into the CONFIG_SMP
fixes it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
12 years agopowerpc/cpuidle: Make it a bool, not a tristate
Deepthi Dharwar [Thu, 12 Jan 2012 03:05:55 +0000 (03:05 +0000)]
powerpc/cpuidle: Make it a bool, not a tristate

As pointed out, asm/system.h has empty inline implementations for
update_smt_snooze_delay and pseries_notify_cpuidle_add_cpu, which are
used when CONFIG_PSERIES_IDLE is undefined. Since those two functions
are used in core power architecture functions (store_smt_snooze_delay
at kernel/sysfs.c and smp_xics_setup_cpu at platforms/pseries/smp.c),

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
12 years agoMerge remote-tracking branch 'kumar/merge' into merge
Benjamin Herrenschmidt [Tue, 24 Jan 2012 22:40:34 +0000 (09:40 +1100)]
Merge remote-tracking branch 'kumar/merge' into merge

12 years agords: Make rds_sock_lock BH rather than IRQ safe.
David S. Miller [Tue, 24 Jan 2012 22:03:44 +0000 (17:03 -0500)]
rds: Make rds_sock_lock BH rather than IRQ safe.

rds_sock_info() triggers locking warnings because we try to perform a
local_bh_enable() (via sock_i_ino()) while hardware interrupts are
disabled (via taking rds_sock_lock).

There is no reason for rds_sock_lock to be a hardware IRQ disabling
lock, none of these access paths run in hardware interrupt context.

Therefore making it a BH disabling lock is safe and sufficient to
fix this bug.

Reported-by: Kumar Sanghvi <kumaras@chelsio.com>
Reported-by: Josh Boyer <jwboyer@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonetprio_cgroup.h: dont include module.h from other includes
Paul Gortmaker [Tue, 24 Jan 2012 11:33:19 +0000 (11:33 +0000)]
netprio_cgroup.h: dont include module.h from other includes

A considerable effort was invested in wiping out module.h
from being present in all the other standard includes.  This
one leaked back in, but once again isn't strictly necessary,
so remove it.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agodrm/i915: debugfs: show semaphore registers also on gen7
Daniel Vetter [Tue, 24 Jan 2012 08:44:29 +0000 (09:44 +0100)]
drm/i915: debugfs: show semaphore registers also on gen7

Corresponding changes to improve our error_state are pending
some other patches to clean up things first.

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
12 years agodrm/i915: allow userspace forcewake references also on gen7
Daniel Vetter [Tue, 24 Jan 2012 08:44:28 +0000 (09:44 +0100)]
drm/i915: allow userspace forcewake references also on gen7

We need this to correctly access registers in the gt power well from
userspace.

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
12 years agodrm/i915: Re-enable gen7 RC6 and GPU turbo after resume.
Eric Anholt [Tue, 24 Jan 2012 00:14:06 +0000 (16:14 -0800)]
drm/i915: Re-enable gen7 RC6 and GPU turbo after resume.

Signed-off-by: Eric Anholt <eric@anholt.net>
Cc: stable@vger.kernel.org
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
12 years agodrm/i915: Correct debugfs printout for RC1e.
Eric Anholt [Tue, 24 Jan 2012 00:14:05 +0000 (16:14 -0800)]
drm/i915: Correct debugfs printout for RC1e.

We had two things in a row claiming to be RC6.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
12 years agonet: flow_dissector.c missing include linux/export.h
Jesper Dangaard Brouer [Tue, 24 Jan 2012 21:03:33 +0000 (16:03 -0500)]
net: flow_dissector.c missing include linux/export.h

The file net/core/flow_dissector.c seems to be missing
including linux/export.h.

Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoteam: send only changed options/ports via netlink
Jiri Pirko [Tue, 24 Jan 2012 05:16:00 +0000 (05:16 +0000)]
team: send only changed options/ports via netlink

This patch changes event message behaviour to send only updated records
instead of whole list. This fixes bug on which userspace receives non-actual
data in case multiple events occur in row.

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agonet/hyperv: fix possible memory leak in do_set_multicast()
Wei Yongjun [Tue, 24 Jan 2012 10:21:28 +0000 (10:21 +0000)]
net/hyperv: fix possible memory leak in do_set_multicast()

do_set_multicast() may not free the memory malloc in
netvsc_set_multicast_list().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agodrivers/net: dsa/mv88e6xxx.c files need linux/module.h
Paul Gortmaker [Tue, 24 Jan 2012 10:41:40 +0000 (10:41 +0000)]
drivers/net: dsa/mv88e6xxx.c files need linux/module.h

An implicit instance of module.h leaked back into existence
and was masking the fact that these drivers weren't calling
out the include for itself.  Fix the drivers before we remove
the implicit include path via net/netprio_cgroup.h file.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agostmmac: added PCI identifiers
Alessandro Rubini [Mon, 23 Jan 2012 23:08:56 +0000 (23:08 +0000)]
stmmac: added PCI identifiers

STM has a device ID within its own VENDOR space, and it is being
used in the STA2X11 I/O Hub.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Acked-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agollc: Fix race condition in llc_ui_recvmsg
Radu Iliescu [Thu, 19 Jan 2012 03:57:57 +0000 (03:57 +0000)]
llc: Fix race condition in llc_ui_recvmsg

There is a race on sk_receive_queue between llc_ui_recvmsg and
sock_queue_rcv_skb.

Our current solution is to protect skb_eat in llc_ui_recvmsg
with the queue spinlock.

Signed-off-by: Radu Iliescu <riliescu@ixiacom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agostmmac: fix phy naming inconsistency
Alessandro Rubini [Mon, 23 Jan 2012 23:26:48 +0000 (23:26 +0000)]
stmmac: fix phy naming inconsistency

After commit "db8857b stmmac: use an unique MDIO bus name" my
device stopped being probed because two different names were being
used in different places. This fixes the inconsistency.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Florian Fainelli <florian@openwrt.org>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Linus Torvalds [Tue, 24 Jan 2012 20:12:40 +0000 (12:12 -0800)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  quota: Pass information that quota is stored in system file to userspace
  ext2: protect inode changes in the SETVERSION and SETFLAGS ioctls
  jbd: Issue cache flush after checkpointing

12 years agoregulator: Fix documentation for of_node parameter of regulator_register()
Mark Brown [Tue, 24 Jan 2012 11:17:26 +0000 (11:17 +0000)]
regulator: Fix documentation for of_node parameter of regulator_register()

Commit 5bc75a886353 ("kernel-doc: fix new warning in regulator core")
added documentation for of_node to address a warning but the
documentation didn't explain what the parameter is for so would be
likely to be unhelpful for users.  Clarify that.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Tue, 24 Jan 2012 18:25:29 +0000 (10:25 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix silent outputs from docking-station jacks of Dell laptops
  ALSA: HDA: Use model=auto for Thinkpad T510
  ALSA: hda - Fix buffer-alignment regression with Nvidia HDMI
  ALSA: hda - Fix a unused variable warning
  snd-hda-intel: better Alienware M17x R3 quirk
  ALSA: hda/realtek - Remove use_jack_tbl field
  ALSA: hda/realtek - Avoid conflict of unsol-events with static quirks
  ALSA: hda/realtek - Avoid multi-ios conflicting with multi-speakers

12 years agogma500: Fix shmem mapping
Alan Cox [Tue, 24 Jan 2012 16:57:42 +0000 (16:57 +0000)]
gma500: Fix shmem mapping

GMA500 did it the old way and it's been on the TODO list to fix.
Current kernels now blow up if we use the old way so we'd better
do the work!

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agogma500: Fix shmem mapping
Alan Cox [Tue, 24 Jan 2012 16:57:42 +0000 (16:57 +0000)]
gma500: Fix shmem mapping

GMA500 did it the old way and it's been on the TODO list to fix. Current kernels
now blow up if we use the old way so we'd better do the work !

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agodrm/radeon/kms: refine TMDS dual link checks
Alex Deucher [Fri, 20 Jan 2012 20:03:30 +0000 (15:03 -0500)]
drm/radeon/kms: refine TMDS dual link checks

HDMI 1.3 defines single link clocks up to 340 Mhz.
Refine the current dual link checks to only enable
dual link for DVI > 165 Mhz or HDMI > 340 Mhz if the
hw supports HDMI 1.3 (DCE3+).

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=44755

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agodrm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode
Alex Deucher [Fri, 20 Jan 2012 20:03:29 +0000 (15:03 -0500)]
drm/radeon/kms: use drm_detect_hdmi_monitor for picking encoder mode

We were previously just checking for audio.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agodrm/radeon/kms: rework modeset sequence for DCE41 and DCE5
Alex Deucher [Fri, 20 Jan 2012 20:01:30 +0000 (15:01 -0500)]
drm/radeon/kms: rework modeset sequence for DCE41 and DCE5

dig transmitter control table only has ENABLE/DISABLE actions
on DCE4.1/DCE5.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=44955

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agodrm/radeon/kms: move panel mode setup into encoder mode set
Alex Deucher [Fri, 20 Jan 2012 20:01:29 +0000 (15:01 -0500)]
drm/radeon/kms: move panel mode setup into encoder mode set

Needs to happen earlier in the mode set.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agodrm/radeon/kms: move disp eng pll setup to init path
Alex Deucher [Fri, 20 Jan 2012 19:56:39 +0000 (14:56 -0500)]
drm/radeon/kms: move disp eng pll setup to init path

We really only need to set it up once on init or resume
rather than on every mode set.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>