sony-laptop: use an enum for SNC event types

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
sony-laptop: notify userspace of GFX switch position changes

Some Vaios come with both integrated and discrete graphics, plus a
switch for choosing one of the two. When the switch position is changed,
a notification is generated.

Signed-off-by: Marco Chiappero <marco@absence.it>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
sony-laptop: store battery care limits on batteries

Some models offer the option to store the limits on the battery
(firmware?).

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
sony-laptop: add lid backlight support for handle 0x143

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
sony-laptop: input initialization should be done before SNC

SNC needs input devices so better have those ready before starting
handle events.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
sony-laptop: fix sony_nc_sysfs_store()

We made this an unsigned long and it causes a bug on 64 bit big endian
systems when we try to pass the value to sony_nc_int_call().

Also value has to be signed because validate() returns negative error
codes.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
sony-laptop: fix a couple signedness bugs

This needs to be signed to handle negative error codes.
Remove a redundant check, read_limits is always called with a valid
handle.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
sony-laptop: correct find_snc_handle failure checks

Since bab7084c745bf4d75b760728387f375fd34dc683, find_snc_handle
returns -EINVAL, not -1.

Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
ideapad: uninitialized data in ideapad_acpi_add()

We only initialize the high bits of "cfg".  It probably doesn't cause
a problem given that this is platform specific code and doesn't have to
worry about endianness etc.  But it's sort of messy.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
intel_ips: blacklist HP ProBook laptops

intel_ips driver spews the warning message
  "ME failed to update for more than 1s, likely hung"
at each second endlessly on HP ProBook laptops with IronLake.

As this has never worked, better to blacklist the driver for now.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
MIPS: Netlogic: Fix PCIX irq on XLR chips

The correct irq is PIC_PCIX_IRQ

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3750/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Netlogic: MSI enable fix for XLS

MSI interrupts do not work on XLS after commit a776c49
( "PCI: msi: Disable msi interrupts when we initialize a pci device" )
because the change disables MSI interrupts on the XLS PCIe bridges
during the PCI enumeration.

Fix this by enabling MSI interrupts on the bridge in the
arch_setup_msi_irq() function. A new function xls_get_pcie_link()
has been introduced to get the PCI device corresponding to the
top level PCIe bridge on which MSI has to be enabled.

Also, update get_irq_vector() to use the new xls_get_pcie_link()
function and PCI_SLOT() macro for determining the IRQ of PCI devices.

Signed-off-by: Ganesan Ramalingam <ganesanr@broadcom.com>
Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3753/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Netlogic: Fix TLB size of boot CPU.

Starting other threads in the core will change the number of
TLB entries of a CPU.  Re-calculate current_cpu_data.tlbsize
on the boot cpu after enabling and waking up other threads.

The secondary CPUs do not need this logic because the threads
are enabled on the secondary cores at wakeup and before cpu_probe.

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3751/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
HID: add battery quirk for Apple Wireless ANSI

Add USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI, to the quirk list since it report
wrong feature type and wrong percentage range.

Signed-off-by: Daniel Nicoletti <dantti12@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
batman-adv: check incoming packet type for bla

If the gateway functionality is used, some broadcast packets (DHCP
requests) may be transmitted as unicast packets. As the bridge loop
avoidance code now only considers the payload Ethernet destination,
it may drop the DHCP request for clients which are claimed by other
backbone gateways, because it falsely infers from the broadcast address
that the right backbone gateway should havehandled the broadcast.

Fix this by checking and delegating the batman-adv packet type used
for transmission.

Reported-by: Guido Iribarren <guidoiribarren@buenosaireslibre.org>
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
mm: cma: don't replace lowmem pages with highmem

The filesystem layer expects pages in the block device's mapping to not
be in highmem (the mapping's gfp mask is set in bdget()), but CMA can
currently replace lowmem pages with highmem pages, leading to crashes in
filesystem code such as the one below:

  Unable to handle kernel NULL pointer dereference at virtual address 00000400
  pgd = c0c98000
  [00000400] *pgd=00c91831, *pte=00000000, *ppte=00000000
  Internal error: Oops: 817 [#1] PREEMPT SMP ARM
  CPU: 0    Not tainted  (3.5.0-rc5+ #80)
  PC is at __memzero+0x24/0x80
  ...
  Process fsstress (pid: 323, stack limit = 0xc0cbc2f0)
  Backtrace:
  [<c010e3f0>] (ext4_getblk+0x0/0x180) from [<c010e58c>] (ext4_bread+0x1c/0x98)
  [<c010e570>] (ext4_bread+0x0/0x98) from [<c0117944>] (ext4_mkdir+0x160/0x3bc)
   r4:c15337f0
  [<c01177e4>] (ext4_mkdir+0x0/0x3bc) from [<c00c29e0>] (vfs_mkdir+0x8c/0x98)
  [<c00c2954>] (vfs_mkdir+0x0/0x98) from [<c00c2a60>] (sys_mkdirat+0x74/0xac)
   r6:00000000 r5:c152eb40 r4:000001ff r3:c14b43f0
  [<c00c29ec>] (sys_mkdirat+0x0/0xac) from [<c00c2ab8>] (sys_mkdir+0x20/0x24)
   r6:beccdcf0 r5:00074000 r4:beccdbbc
  [<c00c2a98>] (sys_mkdir+0x0/0x24) from [<c000e3c0>] (ret_fast_syscall+0x0/0x30)

Fix this by replacing only highmem pages with highmem.

Reported-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Rabin Vincent <rabin@rab.in>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
mm: cma: fix condition check when setting global cma area

dev_set_cma_area incorrectly assigned cma to global area on first call
due to incorrect check. This patch fixes this issue.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
MIPS: Provide a symbol for the legacy performance counter interrupt.

Based on https://patchwork.linux-mips.org/patch/3576 - but this really
deserves its own patchset and the symbol should also be used :)

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: Clean-up GIC and vectored interrupts.

This change adds macros for routing of GIC interrupts for EIC and
non-EIC hardware modes. Also added Malta GIC macros having to do
with performance and timer interrupts.

Signed-off-by: Steven J. Hill <sjhill@mips.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3576/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
MIPS: MT: Fix indentation damage.

Split off from https://patchwork.linux-mips.org/patch/3603/.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>