cascardo/linux.git
11 years agoMerge branch 'pci/feng-avoid-kmalloc' into next
Bjorn Helgaas [Mon, 10 Sep 2012 22:31:08 +0000 (16:31 -0600)]
Merge branch 'pci/feng-avoid-kmalloc' into next

* pci/feng-avoid-kmalloc:
  PCI: Remove the obsolete no_pci_devices() check
  PCI: Use pci_device_id on stack for pci_get_subsys/class() to avoid kmalloc

11 years agoPCI: Remove the obsolete no_pci_devices() check
Feng Tang [Thu, 23 Aug 2012 07:45:47 +0000 (15:45 +0800)]
PCI: Remove the obsolete no_pci_devices() check

In function pci_get_subsys() there is a check:

/*
 * pci_find_subsys() can be called on the ide_setup() path,
 * super-early in boot.  But the down_read() will enable local
 * interrupts, which can cause some machines to crash.  So here we
 * detect and flag that situation and bail out early.
 */
if (unlikely(no_pci_devices()))
return NULL;

But there is no ide_setup() now, and no down_read() either, which
makes the check obsolete. So remove it.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge branch 'pci/bjorn-remove-fakephp' into next
Bjorn Helgaas [Thu, 6 Sep 2012 22:14:19 +0000 (16:14 -0600)]
Merge branch 'pci/bjorn-remove-fakephp' into next

* pci/bjorn-remove-fakephp:
  PCI: Remove the fakephp driver

11 years agoPCI: Remove the fakephp driver
Bjorn Helgaas [Fri, 24 Aug 2012 20:32:07 +0000 (14:32 -0600)]
PCI: Remove the fakephp driver

The fakephp driver was scheduled for removal in 2011.

Fakephp presented /sys/bus/pci/slots/.../power files for every PCI
function.  Writing "0" to one of these files logically removed the device
from the system.  The PCI core now provides the same functionality with
/sys/bus/pci/devices/.../remove.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoPCI: Use pci_device_id on stack for pci_get_subsys/class() to avoid kmalloc
Feng Tang [Thu, 23 Aug 2012 07:45:03 +0000 (15:45 +0800)]
PCI: Use pci_device_id on stack for pci_get_subsys/class() to avoid kmalloc

This fixes a kernel warning https://lkml.org/lkml/2012/7/31/682

pci_get_subsys() may get called in late system reboot stage, using
a sleepable kmalloc() sounds fragile and will cause a kernel warning
with my recent commmit 55c844a "x86/reboot: Fix a warning message
triggered by stop_other_cpus()" which disable local interrupt in
late system shutdown/reboot phase. Using a local parameter instead
will fix it and make it eligible for calling from atomic context.

Do the same change for the pci_get_class() as suggested by Bjorn Helgaas.

Initializing the on-stack struct pci_device_id suggested by Fengguang Wu
and Jiri Slaby.  Section 6.7.8 of the C99 standard guarantees that when we
initialize some of the struct members, the rest of the struct is implicitly
initialized the same as objects with static storage duration, i.e., to zero
in this case.

[bhelgaas: changelog, incorporate Fengguang/Jiri initialization fix]
Bisected-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Fengguang Wu <fengguang.wu@intel.com>
11 years agoMerge branch 'pci/bjorn-cleanup-remove' into next
Bjorn Helgaas [Fri, 24 Aug 2012 00:36:10 +0000 (18:36 -0600)]
Merge branch 'pci/bjorn-cleanup-remove' into next

* pci/bjorn-cleanup-remove:
  PCI: Remove unused pci_dev_b()
  sgi-agp: Use list_for_each_entry() for bus->devices traversal
  parisc/PCI: Use list_for_each_entry() for bus->devices traversal
  parisc/PCI: Enable PERR/SERR on all devices
  frv/PCI: Use list_for_each_entry() for bus->devices traversal
  PCI: Leave normal LIST_POISON in deleted list entries
  PCI: Rename local variables to conventional names
  PCI: Remove unused, commented-out, code
  PCI: Stop and remove devices in one pass
  PCI: Fold stop and remove helpers into their callers
  PCI: Use list_for_each_entry() for bus->devices traversal
  PCI: Remove pci_stop_and_remove_behind_bridge()
  PCI: Don't export stop_bus_device and remove_bus_device interfaces
  pcmcia: Use common pci_stop_and_remove_bus_device()
  PCI: acpiphp: Use common pci_stop_and_remove_bus_device()
  PCI: acpiphp: Stop disabling bridges on remove

11 years agoMerge branch 'pci/bjorn-find-next-ext-cap' into next
Bjorn Helgaas [Fri, 24 Aug 2012 00:32:36 +0000 (18:32 -0600)]
Merge branch 'pci/bjorn-find-next-ext-cap' into next

* pci/bjorn-find-next-ext-cap:
  PCI: Add Vendor-Specific Extended Capability header info
  PCI: Add pci_find_next_ext_capability()

Conflicts:
drivers/pci/pci.c

11 years agoMerge branch 'pci/jiang-pcie-cap' into next
Bjorn Helgaas [Fri, 24 Aug 2012 00:31:58 +0000 (18:31 -0600)]
Merge branch 'pci/jiang-pcie-cap' into next

* pci/jiang-pcie-cap: (40 commits)
  rtl8192e: Use PCI Express Capability accessors
  et131x: Use PCI Express Capability accessors
  rapdio/tsi721: Use PCI Express Capability accessors
  drm/radeon: Use PCI Express Capability accessors
  [SCSI] qla4xxx: Use PCI Express Capability accessors
  [SCSI] qla4xxx: Use PCI Express Capability accessors
  IB/qib: Use PCI Express Capability accessors
  IB/mthca: Use PCI Express Capability accessors
  rtlwifi: Use PCI Express Capability accessors
  iwlwifi: Use PCI Express Capability accessors
  iwlegacy: Use PCI Express Capability accessors
  ath9k: Use PCI Express Capability accessors
  atl1c: Use PCI Express Capability accessors
  cxgb4: Use PCI Express Capability accessors
  cxgb3: Use PCI Express Capability accessors
  myri10ge: Use PCI Express Capability accessors
  niu: Use PCI Express Capability accessors
  mlx4: Use PCI Express Capability accessors
  vxge: Use PCI Express Capability accessors
  igb: Use PCI Express Capability accessors
  ...

11 years agortl8192e: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:33 +0000 (17:20 +0800)]
rtl8192e: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify rtl8192e driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoet131x: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:32 +0000 (17:20 +0800)]
et131x: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify et131x driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agorapdio/tsi721: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:31 +0000 (17:20 +0800)]
rapdio/tsi721: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify tsi721 driver.

[bhelgaas: use word (16-bit) accesses for PCI_EXP_DEVCTL, PCI_EXP_DEVCTL2]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Alexandre Bounine <alexandre.bounine@idt.com>
11 years agodrm/radeon: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:30 +0000 (17:20 +0800)]
drm/radeon: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify radeon driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
11 years ago[SCSI] qla4xxx: Use PCI Express Capability accessors
Jiang Liu [Mon, 20 Aug 2012 20:25:06 +0000 (14:25 -0600)]
[SCSI] qla4xxx: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify qla4xxx driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years ago[SCSI] qla4xxx: Use PCI Express Capability accessors
Jiang Liu [Mon, 20 Aug 2012 20:23:48 +0000 (14:23 -0600)]
[SCSI] qla4xxx: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify qla2xxx driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoIB/qib: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:28 +0000 (17:20 +0800)]
IB/qib: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify qib driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
11 years agoIB/mthca: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:27 +0000 (17:20 +0800)]
IB/mthca: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify mthca driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Roland Dreier <roland@purestorage.com>
11 years agortlwifi: Use PCI Express Capability accessors
Jiang Liu [Mon, 20 Aug 2012 20:18:08 +0000 (14:18 -0600)]
rtlwifi: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify rtlwifi driver.

[bhelgaas: split iwlegacy, iwlwifi, rtlwifi into separate patches]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoiwlwifi: Use PCI Express Capability accessors
Jiang Liu [Mon, 20 Aug 2012 20:17:06 +0000 (14:17 -0600)]
iwlwifi: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify iwlwifi driver.

[bhelgaas: split iwlegacy, iwlwifi, rtlwifi into separate patches]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoiwlegacy: Use PCI Express Capability accessors
Jiang Liu [Mon, 20 Aug 2012 20:15:58 +0000 (14:15 -0600)]
iwlegacy: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify iwlegacy driver.

[bhelgaas: split iwlegacy, iwlwifi, rtlwifi into separate patches]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoath9k: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:25 +0000 (17:20 +0800)]
ath9k: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify ath9k driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoatl1c: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:24 +0000 (17:20 +0800)]
atl1c: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify atl1c driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agocxgb4: Use PCI Express Capability accessors
Jiang Liu [Mon, 20 Aug 2012 19:53:19 +0000 (13:53 -0600)]
cxgb4: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify cxgb4 driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agocxgb3: Use PCI Express Capability accessors
Jiang Liu [Mon, 20 Aug 2012 19:51:20 +0000 (13:51 -0600)]
cxgb3: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify cxgb3 driver.

[bhelgaas: split cxgb3 and cxgb4 into separate patches]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agomyri10ge: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:22 +0000 (17:20 +0800)]
myri10ge: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify myri10ge driver.

[bhelgaas: fix myri10ge_toggle_relaxed() return value]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoniu: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:21 +0000 (17:20 +0800)]
niu: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify niu driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agomlx4: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:20 +0000 (17:20 +0800)]
mlx4: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify mlx4 driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agovxge: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:19 +0000 (17:20 +0800)]
vxge: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify vxge driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoigb: Use PCI Express Capability accessors
Jiang Liu [Mon, 20 Aug 2012 19:32:20 +0000 (13:32 -0600)]
igb: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify igb driver.

[bhelgaas: split e1000e and igb into separate patches]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agoe1000e: Use PCI Express Capability accessors
Jiang Liu [Mon, 20 Aug 2012 19:30:43 +0000 (13:30 -0600)]
e1000e: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify e1000e driver.

[bhelgaas: split e1000e and igb into separate patches]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
11 years agotg3: Use PCI Express Capability accessors
Jiang Liu [Mon, 20 Aug 2012 19:28:20 +0000 (13:28 -0600)]
tg3: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify tg3 driver.

[bhelgaas: split bnx2x and tg3 into separate patches]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agobnx2x: Use PCI Express Capability accessors
Jiang Liu [Mon, 20 Aug 2012 19:26:51 +0000 (13:26 -0600)]
bnx2x: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify bnx2x driver.

[bhelgaas: split bnx2x and tg3 into separate patches]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agor8169: Preserve other Device Control bits when setting NOSNOOP_EN
Bjorn Helgaas [Wed, 22 Aug 2012 16:29:42 +0000 (10:29 -0600)]
r8169: Preserve other Device Control bits when setting NOSNOOP_EN

Previously, when we turned on the "Enable No Snoop Bit," we cleared all
the other Device Control bits, including error reporting enables,
Max_Payload_Size, Max_Read_Request_Size, etc.  This patch preserves
all the other bits.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agor8169: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:16 +0000 (17:20 +0800)]
r8169: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify r8169 driver.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agotile: PCI: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:15 +0000 (17:20 +0800)]
tile: PCI: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify Tile PCIe code.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
11 years agoMIPS: PCI: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:14 +0000 (17:20 +0800)]
MIPS: PCI: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify MIPS PCIe code.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: David Daney <david.daney@cavium.com>
11 years agoARM: PCI: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:13 +0000 (17:20 +0800)]
ARM: PCI: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify ARM PCIe code.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
11 years agoPCI/ASPM: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:12 +0000 (17:20 +0800)]
PCI/ASPM: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify PCIe ASPM.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoPCI/AER: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:11 +0000 (17:20 +0800)]
PCI/AER: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify PCIe AER.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoPCI/PME: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:10 +0000 (17:20 +0800)]
PCI/PME: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify PCIe PME.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoPCI/pciehp: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:09 +0000 (17:20 +0800)]
PCI/pciehp: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify pciehp.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
11 years agoPCI/portdrv: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:08 +0000 (17:20 +0800)]
PCI/portdrv: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify portdrv.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
11 years agoPCI/hotplug: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:07 +0000 (17:20 +0800)]
PCI/hotplug: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify pcihp_slot.c.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
11 years agoPCI: Wait for pending transactions to complete before 82599 FLR
Bjorn Helgaas [Wed, 22 Aug 2012 15:41:27 +0000 (09:41 -0600)]
PCI: Wait for pending transactions to complete before 82599 FLR

Before initiating an FLR, we should wait for completion of any outstanding
non-posted requests.  See PCIe spec r3.0, sec 6.6.2.

This makes reset_intel_82599_sfp_virtfn() very similar to the generic
pcie_flr().  The only difference is that the 82599 doesn't report FLR
support in the VF Device Capability register.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoPCI/core: Use PCI Express Capability accessors
Jiang Liu [Tue, 24 Jul 2012 09:20:06 +0000 (17:20 +0800)]
PCI/core: Use PCI Express Capability accessors

Use PCI Express Capability access functions to simplify core.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoPCI: Add accessors for PCI Express Capability
Jiang Liu [Tue, 24 Jul 2012 09:20:05 +0000 (17:20 +0800)]
PCI: Add accessors for PCI Express Capability

The PCI Express Capability (PCIe spec r3.0, sec 7.8) comes in two
versions, v1 and v2.  In v1 Capability structures (PCIe spec r1.0 and
r1.1), some fields are optional, so the structure size depends on the
device type.

This patch adds functions to access this capability so drivers don't
have to be aware of the differences between v1 and v2.  Note that these
new functions apply only to the "PCI Express Capability," not to any of
the other "PCI Express Extended Capabilities" (AER, VC, ACS, MFVC, etc.)

Function pcie_capability_read_word/dword() reads the PCIe Capabilities
register and returns the value in the reference parameter "val".  If
the PCIe Capabilities register is not implemented on the PCIe device,
"val" is set to 0.

Function pcie_capability_write_word/dword() writes the value to the
specified PCIe Capability register.

Function pcie_capability_clear_and_set_word/dword() sets and/or clears bits
of a PCIe Capability register.

[bhelgaas: changelog, drop "pci_" prefixes, don't export
pcie_capability_reg_implemented()]
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoPCI: Remove unused field pcie_type from struct pci_dev
Yijing Wang [Tue, 24 Jul 2012 09:20:04 +0000 (17:20 +0800)]
PCI: Remove unused field pcie_type from struct pci_dev

With introduction of pci_pcie_type(), pci_dev->pcie_type field becomes
redundant, so remove it.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoPCI: Introduce pci_pcie_type(dev) to replace pci_dev->pcie_type
Yijing Wang [Tue, 24 Jul 2012 09:20:03 +0000 (17:20 +0800)]
PCI: Introduce pci_pcie_type(dev) to replace pci_dev->pcie_type

Introduce an inline function pci_pcie_type(dev) to extract PCIe
device type from pci_dev->pcie_flags_reg field, and prepare for
removing pci_dev->pcie_type.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoPCI: Add Vendor-Specific Extended Capability header info
Bjorn Helgaas [Fri, 13 Jul 2012 20:30:21 +0000 (14:30 -0600)]
PCI: Add Vendor-Specific Extended Capability header info

This adds the fields in the Vendor-Specific Header: ID, Rev, and Length.
There may be multiple Vendor-Specific capabilities, so drivers should use
the VSEC ID to identify the one of interest.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoPCI: Add pci_find_next_ext_capability()
Bjorn Helgaas [Fri, 13 Jul 2012 20:24:59 +0000 (14:24 -0600)]
PCI: Add pci_find_next_ext_capability()

Some extended capabilities, e.g., the vendor-specific capability, can
occur several times.  The existing pci_find_ext_capability() only finds
the first occurrence.  This adds pci_find_next_ext_capability(), which
can iterate through all of them.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoPCI: Remove unused pci_dev_b()
Bjorn Helgaas [Thu, 16 Aug 2012 23:13:00 +0000 (17:13 -0600)]
PCI: Remove unused pci_dev_b()

All uses of pci_dev_b() have been replaced by list_for_each_entry(), so
remove it.

Tested-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
11 years agosgi-agp: Use list_for_each_entry() for bus->devices traversal
Bjorn Helgaas [Thu, 16 Aug 2012 22:46:08 +0000 (16:46 -0600)]
sgi-agp: Use list_for_each_entry() for bus->devices traversal

Replace list_for_each() + pci_dev_b() with the simpler
list_for_each_entry().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
CC: David Airlie <airlied@linux.ie>
11 years agoparisc/PCI: Use list_for_each_entry() for bus->devices traversal
Bjorn Helgaas [Thu, 16 Aug 2012 22:45:02 +0000 (16:45 -0600)]
parisc/PCI: Use list_for_each_entry() for bus->devices traversal

Replace list_for_each() + pci_dev_b() with the simpler
list_for_each_entry().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
CC: linux-parisc@vger.kernel.org
11 years agoparisc/PCI: Enable PERR/SERR on all devices
Bjorn Helgaas [Thu, 16 Aug 2012 22:57:22 +0000 (16:57 -0600)]
parisc/PCI: Enable PERR/SERR on all devices

Previously, we enabled PERR & SERR for the first device on the bus, but
left other devices alone.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
CC: linux-parisc@vger.kernel.org
11 years agofrv/PCI: Use list_for_each_entry() for bus->devices traversal
Bjorn Helgaas [Thu, 16 Aug 2012 22:44:18 +0000 (16:44 -0600)]
frv/PCI: Use list_for_each_entry() for bus->devices traversal

Replace open-coded list traversal with list_for_each_entry().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
CC: David Howells <dhowells@redhat.com>
11 years agoPCI: Leave normal LIST_POISON in deleted list entries
Bjorn Helgaas [Fri, 17 Aug 2012 03:12:38 +0000 (21:12 -0600)]
PCI: Leave normal LIST_POISON in deleted list entries

list_del() already sets next/prev to LIST_POISON1/LIST_POISON2, so we
don't need to do anything special here to prevent further list accesses.

Tested-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
11 years agoPCI: Rename local variables to conventional names
Bjorn Helgaas [Fri, 17 Aug 2012 02:43:11 +0000 (20:43 -0600)]
PCI: Rename local variables to conventional names

"bus" is the conventional name for a "struct pci_bus *" variable.

Tested-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
11 years agoPCI: Remove unused, commented-out, code
Bjorn Helgaas [Fri, 17 Aug 2012 02:38:50 +0000 (20:38 -0600)]
PCI: Remove unused, commented-out, code

This removes unused code that was already commented out.

Tested-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
11 years agoPCI: Stop and remove devices in one pass
Bjorn Helgaas [Fri, 17 Aug 2012 17:57:48 +0000 (11:57 -0600)]
PCI: Stop and remove devices in one pass

Previously, when we removed a PCI device, we made two passes over the
hierarchy rooted at the device.  In the first pass, we stopped all
the devices, and in the second, we removed them.

This patch combines the two passes into one so that we remove a device as
soon as it and all its children have been stopped.

Note that we previously stopped devices in reverse order and removed them
in forward order.  Now we stop and remove them in reverse order.

Tested-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
11 years agoPCI: Fold stop and remove helpers into their callers
Bjorn Helgaas [Fri, 17 Aug 2012 17:25:01 +0000 (11:25 -0600)]
PCI: Fold stop and remove helpers into their callers

pci_stop_bus_devices() is only two lines of code and is only called by
pci_stop_bus_device(), so I think it's easier to read if we just fold it
into the caller.  Similarly for __pci_remove_behind_bridge().

Tested-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
11 years agoPCI: Use list_for_each_entry() for bus->devices traversal
Bjorn Helgaas [Fri, 17 Aug 2012 21:53:27 +0000 (15:53 -0600)]
PCI: Use list_for_each_entry() for bus->devices traversal

Replace list_for_each() + pci_dev_b() with the simpler
list_for_each_entry().

Tested-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
11 years agoPCI: Remove pci_stop_and_remove_behind_bridge()
Bjorn Helgaas [Fri, 17 Aug 2012 17:07:49 +0000 (11:07 -0600)]
PCI: Remove pci_stop_and_remove_behind_bridge()

The PCMCIA CardBus driver was the only user of
pci_stop_and_remove_behind_bridge(), and it now uses
pci_stop_and_remove_bus_device() instead, so remove this interface.

This removes exported symbol pci_stop_and_remove_behind_bridge.

Tested-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
11 years agoPCI: Don't export stop_bus_device and remove_bus_device interfaces
Bjorn Helgaas [Fri, 17 Aug 2012 16:07:00 +0000 (10:07 -0600)]
PCI: Don't export stop_bus_device and remove_bus_device interfaces

The acpiphp hotplug driver was the only user of pci_stop_bus_device() and
__pci_remove_bus_device(), and it now uses pci_stop_and_remove_bus_device()
instead, so stop exposing these interfaces.

This removes these exported symbols:

    __pci_remove_bus_device
    pci_stop_bus_device

Tested-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
11 years agopcmcia: Use common pci_stop_and_remove_bus_device()
Bjorn Helgaas [Fri, 17 Aug 2012 16:49:04 +0000 (10:49 -0600)]
pcmcia: Use common pci_stop_and_remove_bus_device()

Use pci_stop_and_remove_bus_device() like most other hotplug drivers
rather than the special-purpose "behind_bridge" variant.  This just
means we have to iterate through all the devices downstream of the
bridge ourselves, which is the same thing pci_stop_behind_bridge()
did.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
11 years agoPCI: acpiphp: Use common pci_stop_and_remove_bus_device()
Bjorn Helgaas [Fri, 17 Aug 2012 16:03:47 +0000 (10:03 -0600)]
PCI: acpiphp: Use common pci_stop_and_remove_bus_device()

Use pci_stop_and_remove_bus_device() like most other hotplug drivers
rather than stopping and removing separately.

Tested-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
11 years agoPCI: Add pcie_flags_reg to cache PCIe capabilities register
Yijing Wang [Tue, 24 Jul 2012 09:20:02 +0000 (17:20 +0800)]
PCI: Add pcie_flags_reg to cache PCIe capabilities register

Since PCI Express Capabilities Register is read only, cache its value
into struct pci_dev to avoid repeatedly calling pci_read_config_*().

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
11 years agoPCI: acpiphp: Stop disabling bridges on remove
Bjorn Helgaas [Fri, 17 Aug 2012 15:56:14 +0000 (09:56 -0600)]
PCI: acpiphp: Stop disabling bridges on remove

acpiphp_disable_slot() turns off power to the slot immediately after
calling disable_device(), so there's no point in disabling any bridges
below the slot: we're about to turn them off anyway.

Tested-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
11 years agoLinux 3.6-rc1 v3.6-rc1
Linus Torvalds [Thu, 2 Aug 2012 23:38:10 +0000 (16:38 -0700)]
Linux 3.6-rc1

11 years agoMerge branch 'for-linus-3.6' of git://dev.laptop.org/users/dilinger/linux-olpc
Linus Torvalds [Thu, 2 Aug 2012 18:52:39 +0000 (11:52 -0700)]
Merge branch 'for-linus-3.6' of git://dev.laptop.org/users/dilinger/linux-olpc

Pull OLPC platform updates from Andres Salomon:
 "These move the OLPC Embedded Controller driver out of
  arch/x86/platform and into drivers/platform/olpc.

  OLPC machines are now ARM-based (which means lots of x86 and ARM
  changes), but are typically pretty self-contained..  so it makes more
  sense to go through a separate OLPC tree after getting the appropriate
  review/ACKs."

* 'for-linus-3.6' of git://dev.laptop.org/users/dilinger/linux-olpc:
  x86: OLPC: move s/r-related EC cmds to EC driver
  Platform: OLPC: move global variables into priv struct
  Platform: OLPC: move debugfs support from x86 EC driver
  x86: OLPC: switch over to using new EC driver on x86
  Platform: OLPC: add a suspended flag to the EC driver
  Platform: OLPC: turn EC driver into a platform_driver
  Platform: OLPC: allow EC cmd to be overridden, and create a workqueue to call it
  drivers: OLPC: update various drivers to include olpc-ec.h
  Platform: OLPC: add a stub to drivers/platform/ for the OLPC EC driver

11 years agoMerge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Linus Torvalds [Thu, 2 Aug 2012 18:50:24 +0000 (11:50 -0700)]
Merge tag 'dt2' of git://git./linux/kernel/git/arm/arm-soc

Pull arm-soc Marvell Orion device-tree updates from Olof Johansson:
 "This contains a set of device-tree conversions for Marvell Orion
  platforms that were staged early but took a few tries to get the
  branch into a format where it was suitable for us to pick up.

  Given that most people working on these platforms are hobbyists with
  limited time, we were a bit more flexible with merging it even though
  it came in late."

* tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (21 commits)
  ARM: Kirkwood: Replace mrvl with marvell
  ARM: Kirkwood: Describe GoFlex Net LEDs and SATA in DT.
  ARM: Kirkwood: Describe Dreamplug LEDs in DT.
  ARM: Kirkwood: Describe iConnects LEDs in DT.
  ARM: Kirkwood: Describe iConnects temperature sensor in DT.
  ARM: Kirkwood: Describe IB62x0 LEDs in DT.
  ARM: Kirkwood: Describe IB62x0 gpio-keys in DT.
  ARM: Kirkwood: Describe DNS32? gpio-keys in DT.
  ARM: Kirkwood: Move common portions into a kirkwood-dnskw.dtsi
  ARM: Kirkwood: Replace DNS-320/DNS-325 leds with dt bindings
  ARM: Kirkwood: Describe DNS325 temperature sensor in DT.
  ARM: Kirkwood: Use DT to configure SATA device.
  ARM: kirkwood: use devicetree for SPI on dreamplug
  ARM: kirkwood: Add LS-XHL and LS-CHLv2 support
  ARM: Kirkwood: Initial DTS support for Kirkwood GoFlex Net
  ARM: Kirkwood: Add basic device tree support for QNAP TS219.
  ATA: sata_mv: Add device tree support
  ARM: Orion: DTify the watchdog timer.
  ARM: Orion: Add arch support needed for I2C via DT.
  ARM: kirkwood: use devicetree for orion-spi
  ...

Conflicts:
drivers/watchdog/orion_wdt.c

11 years agoMerge tag 'pm2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Linus Torvalds [Thu, 2 Aug 2012 18:48:54 +0000 (11:48 -0700)]
Merge tag 'pm2' of git://git./linux/kernel/git/arm/arm-soc

Pull arm-soc cpuidle enablement for OMAP from Olof Johansson:
 "Coupled cpuidle was meant to merge for 3.5 through Len Brown's tree,
  but didn't go in because the pull request ended up rejected.  So it
  just got merged, and we got this staged branch that enables the
  coupled cpuidle code on OMAP.

  With a stable git workflow from the other maintainer we could have
  staged this earlier, but that wasn't the case so we have had to merge
  it late.

  The alternative is to hold it off until 3.7 but given that the code is
  well-isolated to OMAP and they are eager to see it go in, I didn't
  push back hard in that direction."

* tag 'pm2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: OMAP4: CPUidle: Open broadcast clock-event device.
  ARM: OMAP4: CPUidle: add synchronization for coupled idle states
  ARM: OMAP4: CPUidle: Use coupled cpuidle states to implement SMP cpuidle.
  ARM: OMAP: timer: allow gp timer clock-event to be used on both cpus

11 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Thu, 2 Aug 2012 18:48:20 +0000 (11:48 -0700)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A few fixes for merge window fallout, and a bugfix for timer resume on
  PRIMA2."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: mmp: add missing irqs.h
  arm: mvebu: fix typo in .dtsi comment for Armada XP SoCs
  ARM: PRIMA2: delete redundant codes to restore LATCHED when timer resumes
  ARM: mxc: Include missing irqs.h header

11 years agoMerge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh
Linus Torvalds [Thu, 2 Aug 2012 18:45:42 +0000 (11:45 -0700)]
Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH fixes from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (24 commits)
  sh: explicitly include sh_dma.h in setup-sh7722.c
  sh: ecovec: care CN5 VBUS if USB host mode
  sh: sh7724: fixup renesas_usbhs clock settings
  sh: intc: initial irqdomain support.
  sh: pfc: Fix up init ordering mess.
  serial: sh-sci: fix compilation breakage, when DMA is enabled
  dmaengine: shdma: restore partial transfer calculation
  sh: modify the sh_dmae_slave_config for RSPI in setup-sh7757
  sh: Fix up recursive fault in oops with unset TTB.
  sh: pfc: Build fix for pinctrl_remove_gpio_range() changes.
  sh: select the fixed regulator driver on several boards
  sh: ecovec: switch MMC power control to regulators
  sh: add fixed voltage regulators to se7724
  sh: add fixed voltage regulators to sdk7786
  sh: add fixed voltage regulators to rsk
  sh: add fixed voltage regulators to migor
  sh: add fixed voltage regulators to kfr2r09
  sh: add fixed voltage regulators to ap325rxa
  sh: add fixed voltage regulators to sh7757lcr
  sh: add fixed voltage regulators to sh2007
  ...

11 years agoMerge tag 'md-3.6' of git://neil.brown.name/md
Linus Torvalds [Thu, 2 Aug 2012 18:34:40 +0000 (11:34 -0700)]
Merge tag 'md-3.6' of git://neil.brown.name/md

Pull additional md update from NeilBrown:
 "This contains a few patches that depend on plugging changes in the
  block layer so needed to wait for those.

  It also contains a Kconfig fix for the new RAID10 support in dm-raid."

* tag 'md-3.6' of git://neil.brown.name/md:
  md/dm-raid: DM_RAID should select MD_RAID10
  md/raid1: submit IO from originating thread instead of md thread.
  raid5: raid5d handle stripe in batch way
  raid5: make_request use batch stripe release

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Thu, 2 Aug 2012 17:57:31 +0000 (10:57 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/sage/ceph-client

Pull two ceph fixes from Sage Weil:
 "The first patch fixes up the old crufty open intent code to use the
  atomic_open stuff properly, and the second fixes a possible null deref
  and memory leak with the crypto keys."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  libceph: fix crypto key null deref, memory leak
  ceph: simplify+fix atomic_open

11 years agoMerge tag 'ecryptfs-3.6-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 2 Aug 2012 17:56:34 +0000 (10:56 -0700)]
Merge tag 'ecryptfs-3.6-rc1-fixes' of git://git./linux/kernel/git/tyhicks/ecryptfs

Pull ecryptfs fixes from Tyler Hicks:
 - Fixes a bug when the lower filesystem mount options include 'acl',
   but the eCryptfs mount options do not
 - Cleanups in the messaging code
 - Better handling of empty files in the lower filesystem to improve
   usability.  Failed file creations are now cleaned up and empty lower
   files are converted into eCryptfs during open().
 - The write-through cache changes are being reverted due to bugs that
   are not easy to fix.  Stability outweighs the performance
   enhancements here.
 - Improvement to the mount code to catch unsupported ciphers specified
   in the mount options

* tag 'ecryptfs-3.6-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
  eCryptfs: check for eCryptfs cipher support at mount
  eCryptfs: Revert to a writethrough cache model
  eCryptfs: Initialize empty lower files when opening them
  eCryptfs: Unlink lower inode when ecryptfs_create() fails
  eCryptfs: Make all miscdev functions use daemon ptr in file private_data
  eCryptfs: Remove unused messaging declarations and function
  eCryptfs: Copy up POSIX ACL and read-only flags from lower mount

11 years agoMerge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Thu, 2 Aug 2012 17:54:11 +0000 (10:54 -0700)]
Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

Pull CIFS update from Steve French:
 "Adds SMB2 rmdir/mkdir capability to the SMB2/SMB2.1 support in cifs.

  I am holding up a few more days on merging the remainder of the
  SMB2/SMB2.1 enablement although it is nearing review completion, in
  order to address some review comments from Jeff Layton on a few of the
  subsequent SMB2 patches, and also to debug an unrelated cifs problem
  that Pavel discovered."

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  CIFS: Add SMB2 support for rmdir
  CIFS: Move rmdir code to ops struct
  CIFS: Add SMB2 support for mkdir operation
  CIFS: Separate protocol specific part from mkdir
  CIFS: Simplify cifs_mkdir call

11 years agomm: remove node_start_pfn checking in new WARN_ON for now
Linus Torvalds [Thu, 2 Aug 2012 17:37:03 +0000 (10:37 -0700)]
mm: remove node_start_pfn checking in new WARN_ON for now

Borislav Petkov reports that the new warning added in commit
88fdf75d1bb5 ("mm: warn if pg_data_t isn't initialized with zero")
triggers for him, and it is the node_start_pfn field that has already
been initialized once.

The call trace looks like this:

  x86_64_start_kernel ->
    x86_64_start_reservations ->
    start_kernel ->
    setup_arch ->
    paging_init ->
    zone_sizes_init ->
    free_area_init_nodes ->
    free_area_init_node

and (with the warning replaced by debug output), Borislav sees

  On node 0 totalpages: 4193848
    DMA zone: 64 pages used for memmap
    DMA zone: 6 pages reserved
    DMA zone: 3890 pages, LIFO batch:0
    DMA32 zone: 16320 pages used for memmap
    DMA32 zone: 798464 pages, LIFO batch:31
    Normal zone: 52736 pages used for memmap
    Normal zone: 3322368 pages, LIFO batch:31
  free_area_init_node: pgdat->node_start_pfn: 4423680      <----
  On node 1 totalpages: 4194304
    Normal zone: 65536 pages used for memmap
    Normal zone: 4128768 pages, LIFO batch:31
  free_area_init_node: pgdat->node_start_pfn: 8617984      <----
  On node 2 totalpages: 4194304
    Normal zone: 65536 pages used for memmap
    Normal zone: 4128768 pages, LIFO batch:31
  free_area_init_node: pgdat->node_start_pfn: 12812288     <----
  On node 3 totalpages: 4194304
    Normal zone: 65536 pages used for memmap
    Normal zone: 4128768 pages, LIFO batch:31

so remove the bogus warning for now to avoid annoying people.  Minchan
Kim is looking at it.

Reported-by: Borislav Petkov <bp@amd64.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoARM: mmp: add missing irqs.h
Haojian Zhuang [Mon, 30 Jul 2012 14:20:34 +0000 (22:20 +0800)]
ARM: mmp: add missing irqs.h

arch/arm/mach-mmp/gplugd.c:195:13: error: ‘MMP_NR_IRQS’ undeclared here
(not in a function)
make[1]: *** [arch/arm/mach-mmp/gplugd.o] Error 1

Include <mach/irqs.h> to fix this issue.

Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
11 years agoarm: mvebu: fix typo in .dtsi comment for Armada XP SoCs
Thomas Petazzoni [Thu, 2 Aug 2012 15:13:47 +0000 (17:13 +0200)]
arm: mvebu: fix typo in .dtsi comment for Armada XP SoCs

The comment was wrongly referring to Armada 370 while the file is
related to Armada XP.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
11 years agoARM: PRIMA2: delete redundant codes to restore LATCHED when timer resumes
Barry Song [Mon, 30 Jul 2012 05:29:30 +0000 (13:29 +0800)]
ARM: PRIMA2: delete redundant codes to restore LATCHED when timer resumes

The only way to write LATCHED registers to write LATCH_BIT to LATCH register,
that will latch COUNTER into LATCHED.e.g.
writel_relaxed(SIRFSOC_TIMER_LATCH_BIT, sirfsoc_timer_base +
SIRFSOC_TIMER_LATCH);

Writing values to LATCHED registers directly is useless at all.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
11 years agolibceph: fix crypto key null deref, memory leak
Sylvain Munaut [Thu, 2 Aug 2012 16:12:59 +0000 (09:12 -0700)]
libceph: fix crypto key null deref, memory leak

Avoid crashing if the crypto key payload was NULL, as when it was not correctly
allocated and initialized.  Also, avoid leaking it.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>
11 years agoceph: simplify+fix atomic_open
Sage Weil [Tue, 31 Jul 2012 18:27:36 +0000 (11:27 -0700)]
ceph: simplify+fix atomic_open

The initial ->atomic_open op was carried over from the old intent code,
which was incomplete and didn't really work.  Replace it with a fresh
method.  In particular:

 * always attempt to do an atomic open+lookup, both for the create case
   and for lookups of existing files.
 * fix symlink handling by returning 1 to the VFS so that we can follow
   the link to its destination. This fixes a longstanding ceph bug (#2392).

Signed-off-by: Sage Weil <sage@inktank.com>
11 years agosh: explicitly include sh_dma.h in setup-sh7722.c
Guennadi Liakhovetski [Wed, 1 Aug 2012 08:44:57 +0000 (10:44 +0200)]
sh: explicitly include sh_dma.h in setup-sh7722.c

setup-sh7722.c defines several objects, whose types are defined in
sh_dma.h, so, it has to be included explicitly.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
11 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Wed, 1 Aug 2012 23:47:15 +0000 (16:47 -0700)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus

Pull MIPS updates from Ralf Baechle:
 "The lion share of this pull request are fixes for clk-related breakage
  caused by other changes during this merge window.  For some platforms
  the fix was as simple as selecting HAVE_CLK, for others like the
  Loongson 2 significant restructuring was required.

  The remainder are changes required to get the Lantiq code to work
  again."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Loongson 2: Sort out clock managment.
  MIPS: Loongson 1: more clk support and add select HAVE_CLK
  MIPS: txx9: Fix redefinition of clk_* by adding select HAVE_CLK
  MIPS: BCM63xx: Fix redefinition of clk_* by adding select HAVE_CLK
  MIPS: AR7: Fix redefinition of clk_* by adding select HAVE_CLK
  MIPS: Lantiq: Platform specific CLK fixup
  MIPS: Lantiq: Add device_tree_init function
  MIPS: Lantiq: Fix interface clock and PCI control register offset

11 years agoMerge branch 'for-linus-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 1 Aug 2012 23:45:02 +0000 (16:45 -0700)]
Merge branch 'for-linus-3.6-rc1' of git://git./linux/kernel/git/rw/uml

Pull UML fixes from Richard Weinberger:
 "This patch set contains mostly fixes and cleanups.  The UML tty driver
  uses now tty_port and is no longer broken like hell  :-)"

* 'for-linus-3.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  um: Add arch/x86/um to MAINTAINERS
  um: pass siginfo to guest process
  um: fix ubd_file_size for read-only files
  um: pull interrupt_end() into userspace()
  um: split syscall_trace(), pass pt_regs to it
  um: switch UPT_SET_RETURN_VALUE and regs_return_value to pt_regs
  um: set BLK_CGROUP=y in defconfig
  um: remove count_lock
  um: fully use tty_port
  um: Remove dead code
  um: remove line_ioctl()
  TTY: um/line, use tty from tty_port
  TTY: um/line, add tty_port

11 years agoMerge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Wed, 1 Aug 2012 23:41:07 +0000 (16:41 -0700)]
Merge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm

Pull ARM DMA engine updates from Russell King:
 "This looks scary at first glance, but what it is is:
   - a rework of the sa11x0 DMA engine driver merged during the previous
     cycle, to extract a common set of helper functions for DMA engine
     implementations.
   - conversion of amba-pl08x.c to use these helper functions.
   - addition of OMAP DMA engine driver (using these helper functions),
     and conversion of some of the OMAP DMA users to use DMA engine.

  Nothing in the helper functions is ARM specific, so I hope that other
  implementations can consolidate some of their code by making use of
  these helpers.

  This has been sitting in linux-next most of the merge cycle, and has
  been tested by several OMAP folk.  I've tested it on sa11x0 platforms,
  and given it my best shot on my broken platforms which have the
  amba-pl08x controller.

  The last point is the addition to feature-removal-schedule.txt, which
  will have a merge conflict.  Between myself and TI, we're planning to
  remove the old TI DMA implementation next year."

Fix up trivial add/add conflicts in Documentation/feature-removal-schedule.txt
and drivers/dma/{Kconfig,Makefile}

* 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm: (53 commits)
  ARM: 7481/1: OMAP2+: omap2plus_defconfig: enable OMAP DMA engine
  ARM: 7464/1: mmc: omap_hsmmc: ensure probe returns error if DMA channel request fails
  Add feature removal of old OMAP private DMA implementation
  mtd: omap2: remove private DMA API implementation
  mtd: omap2: add DMA engine support
  spi: omap2-mcspi: remove private DMA API implementation
  spi: omap2-mcspi: add DMA engine support
  ARM: omap: remove mmc platform data dma_mask and initialization
  mmc: omap: remove private DMA API implementation
  mmc: omap: add DMA engine support
  mmc: omap_hsmmc: remove private DMA API implementation
  mmc: omap_hsmmc: add DMA engine support
  dmaengine: omap: add support for cyclic DMA
  dmaengine: omap: add support for setting fi
  dmaengine: omap: add support for returning residue in tx_state method
  dmaengine: add OMAP DMA engine driver
  dmaengine: sa11x0-dma: add cyclic DMA support
  dmaengine: sa11x0-dma: fix DMA residue support
  dmaengine: PL08x: ensure all descriptors are freed when channel is released
  dmaengine: PL08x: get rid of write only pool_ctr and free_txd locking
  ...

11 years agoMerge branch 'audit' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Wed, 1 Aug 2012 23:35:37 +0000 (16:35 -0700)]
Merge branch 'audit' of git://git.linaro.org/people/rmk/linux-arm

Pull ARM audit/signal updates from Russell King:
 "ARM audit/signal handling updates from Al and Will.  This improves on
  the work Viro did last merge window, and sorts out some of the issues
  found with that work."

* 'audit' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7475/1: sys_trace: allow all syscall arguments to be updated via ptrace
  ARM: 7474/1: get rid of TIF_SYSCALL_RESTARTSYS
  ARM: 7473/1: deal with handlerless restarts without leaving the kernel
  ARM: 7472/1: pull all work_pending logics into C function
  ARM: 7471/1: Revert "7442/1: Revert "remove unused restart trampoline""
  ARM: 7470/1: Revert "7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK""

11 years agoMerge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Linus Torvalds [Wed, 1 Aug 2012 23:30:45 +0000 (16:30 -0700)]
Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm

Pull ARM fixes from Russell King:
 "This fixes various issues found during July"

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7479/1: mm: avoid NULL dereference when flushing gate_vma with VIVT caches
  ARM: Fix undefined instruction exception handling
  ARM: 7480/1: only call smp_send_stop() on SMP
  ARM: 7478/1: errata: extend workaround for erratum #720789
  ARM: 7477/1: vfp: Always save VFP state in vfp_pm_suspend on UP
  ARM: 7476/1: vfp: only clear vfp state for current cpu in vfp_pm_suspend
  ARM: 7468/1: ftrace: Trace function entry before updating index
  ARM: 7467/1: mutex: use generic xchg-based implementation for ARMv6+
  ARM: 7466/1: disable interrupt before spinning endlessly
  ARM: 7465/1: Handle >4GB memory sizes in device tree and mem=size@start option

11 years agoum: Add arch/x86/um to MAINTAINERS
Richard Weinberger [Wed, 1 Aug 2012 23:00:47 +0000 (01:00 +0200)]
um: Add arch/x86/um to MAINTAINERS

Signed-off-by: Richard Weinberger <richard@nod.at>
11 years agoum: pass siginfo to guest process
Martin Pärtel [Wed, 1 Aug 2012 22:49:17 +0000 (00:49 +0200)]
um: pass siginfo to guest process

UML guest processes now get correct siginfo_t for SIGTRAP, SIGFPE,
SIGILL and SIGBUS. Specifically, si_addr and si_code are now correct
where previously they were si_addr = NULL and si_code = 128.

Signed-off-by: Martin Pärtel <martin.partel@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
11 years agoum: fix ubd_file_size for read-only files
Martin Pärtel [Wed, 1 Aug 2012 22:44:22 +0000 (00:44 +0200)]
um: fix ubd_file_size for read-only files

Made ubd_file_size not request write access. Fixes use of read-only images.

Signed-off-by: Martin Pärtel <martin.partel@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
11 years agomd/dm-raid: DM_RAID should select MD_RAID10
NeilBrown [Wed, 1 Aug 2012 22:35:43 +0000 (08:35 +1000)]
md/dm-raid: DM_RAID should select MD_RAID10

Now that DM_RAID supports raid10, it needs to select that code
to ensure it is included.

Cc: Jonathan Brassow <jbrassow@redhat.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
11 years agomd/raid1: submit IO from originating thread instead of md thread.
NeilBrown [Wed, 1 Aug 2012 22:33:20 +0000 (08:33 +1000)]
md/raid1: submit IO from originating thread instead of md thread.

queuing writes to the md thread means that all requests go through the
one processor which may not be able to keep up with very high request
rates.

So use the plugging infrastructure to submit all requests on unplug.
If a 'schedule' is needed, we fall back on the old approach of handing
the requests to the thread for it to handle.

Signed-off-by: NeilBrown <neilb@suse.de>
11 years agoraid5: raid5d handle stripe in batch way
Shaohua Li [Wed, 1 Aug 2012 22:33:15 +0000 (08:33 +1000)]
raid5: raid5d handle stripe in batch way

Let raid5d handle stripe in batch way to reduce conf->device_lock locking.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
11 years agoraid5: make_request use batch stripe release
Shaohua Li [Wed, 1 Aug 2012 22:33:00 +0000 (08:33 +1000)]
raid5: make_request use batch stripe release

make_request() does stripe release for every stripe and the stripe usually has
count 1, which makes previous release_stripe() optimization not work. In my
test, this release_stripe() becomes the heaviest pleace to take
conf->device_lock after previous patches applied.

Below patch makes stripe release batch. All the stripes will be released in
unplug. The STRIPE_ON_UNPLUG_LIST bit is to protect concurrent access stripe
lru.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
11 years agoum: pull interrupt_end() into userspace()
Al Viro [Wed, 23 May 2012 04:25:15 +0000 (00:25 -0400)]
um: pull interrupt_end() into userspace()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
11 years agoum: split syscall_trace(), pass pt_regs to it
Al Viro [Wed, 23 May 2012 04:18:33 +0000 (00:18 -0400)]
um: split syscall_trace(), pass pt_regs to it

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
[richard@nod.at: Fixed some minor build issues]
Signed-off-by: Richard Weinberger <richard@nod.at>
11 years agoum: switch UPT_SET_RETURN_VALUE and regs_return_value to pt_regs
Al Viro [Wed, 23 May 2012 01:16:35 +0000 (21:16 -0400)]
um: switch UPT_SET_RETURN_VALUE and regs_return_value to pt_regs

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
11 years agoMerge tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linux-2.6
Linus Torvalds [Wed, 1 Aug 2012 17:45:12 +0000 (10:45 -0700)]
Merge tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linux-2.6

Pull fbdev updates from Florian Tobias Schandinat:
 - large updates for OMAP
   - support for LCD3 overlay manager (omap5)
   - omapdss output cleanup
   - removal of passive matrix LCD support as there are no drivers for
     such panels for DSS or DSS2 and nobody complained (cleanup)
 - large updates for SH Mobile
   - overlay support
   - separating MERAM (cache) from framebuffer driver
 - some updates for Exynos and da8xx-fb
 - various other small patches

* tag 'fbdev-updates-for-3.6' of git://github.com/schandinat/linux-2.6: (78 commits)
  da8xx-fb: fix compile issue due to missing include
  fbdev: Make pixel_to_pat() failure mode more friendly
  da8xx-fb: do not turn ON LCD backlight unless LCDC is enabled
  fbdev: sh_mobile_lcdc: Fix vertical panning step
  video: exynos mipi dsi: Fix mipi dsi regulators handling issue
  video: da8xx-fb: do clock reset of revision 2 LCDC before enabling
  arm: da850: configure LCDC fifo threshold
  video: da8xx-fb: configure FIFO threshold to reduce underflow errors
  video: da8xx-fb: fix flicker due to 1 frame delay in updated frame
  video: da8xx-fb rev2: fix disabling of palette completion interrupt
  da8xx-fb: add missing FB_BLANK operations
  video: exynos_dp: use usleep_range instead of delay
  video: exynos_dp: check the only INTERLANE_ALIGN_DONE bit during Link Training
  fb: epson1355fb: Fix section mismatch
  video: exynos_dp: fix wrong DPCD address during Link Training
  video/smscufx: fix line counting in fb_write
  aty128fb: Fix coding style issues
  fbdev: sh_mobile_lcdc: Fix pan offset computation in YUV mode
  fbdev: sh_mobile_lcdc: Fix overlay registers update during pan operation
  fbdev: sh_mobile_lcdc: Support horizontal panning
  ...

11 years agoMerge tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Wed, 1 Aug 2012 17:42:26 +0000 (10:42 -0700)]
Merge tag 'sound-3.6' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes that have been found recently.  Most of
  the commits are regression fixes in HD-audio and some other random
  drivers."

* tag 'sound-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: snd-usb: fix clock source validity index
  ALSA: hda - Fix mute-LED GPIO initialization for IDT codecs
  ALSA: hda - Add descriptions for missing IDT 92HD83x models
  ALSA: hda - Fix polarity of mute LED on HP Mini 210
  ALSA: es1688 - freeup resources on init failure
  ALSA: hda - Workaround for silent output on VAIO Z with ALC889
  ALSA: hda - Fix WARNING from HDMI/DP parser
  ALSA: hda - Detach from converter at closing in patch_hdmi.c
  ALSA: hda - Fix mute-LED GPIO setup for HP Mini 210
  ALSA: mpu401: Fix missing initialization of irq field
  ALSA: hda - Fix invalid D3 of headphone DAC on VT202x codecs