Commit 1feb57a245
"gpio: add parameter to allow the use named gpios"
includes a double-consted array. What we want is not
const const * but const * const (const pointer to const
data). Fix this.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Olliver Schinagl <oliver@schinagl.nl>
Cc: Rojhalat Ibrahim <imr@rtschenk.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Extend the documentation for the gpiod_set_array() functions and elaborate
a bit on possible use cases.
Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The macro BANK_OFF which calculates the base offset for each GPIO port.
The macro is needlessly complex and unreadable. Simplify the
calculation to a simple math operation.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: linux-gpio@vger.kernel.org
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Adds a new driver device tree binding for Altera soft GPIO IP
Signed-off-by: Tien Hock Loh <thloh@altera.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Adds a new driver for Altera soft GPIO IP. The driver is able to do
read/write and allows GPIO to be a interrupt controller.
Tested on Altera GHRD on interrupt handling and IO.
v10:
- Updated conflicting device tree parameters
- Removed unused headers
- Used macro instead of magic numbers for ngpio
- Code readability cleanup using ?: and temporal variables
- Removed leftover garbage and unnecessary function calls
- Checked bgpio_init but unusable because Altera GPIO may not
be a multiple of 8 bits
v9:
- Removed duplicated initialization on set_type using temporals
to improve code readability in calling generic_handle_irq
- Using ?: ternary to reduce code size
v8:
- Using for_each_set_bit
- Added const for struct definition
- Removed naggy pr_err
- Sort alpha header
- Remove unused macros
- Use fixed width data types instead of unsigned long
- Whitespace issue fixes
- Removed _relaxed function for better compatibility across different
CPU
- Changed irq_create_mapping to platform_get_irq updated implementation
to use gpiochip_irqchip_add
- Reserve interrupt-cells number 2 in device tree binding for future
use
- Remove confusing sections on devicetree bindings
- Added tristate Kconfig help text
v7:
- Used dev_warn instead of pr_warn
- Clean up unnecesarry if else indentation
v6:
- Added irq_startup and irq_shutdown
- Changed bitwise clamping style
- Cleanup bitwise operation to improve readability change naming of
mapped irqs from virq to mapped_irq
v5:
- Dispose irq_domain mapping correctly
- Update optional binding description in binding docs
v4:
- Added vendor prefix to devicetree binding for IP specific properties
using MMIO GPIO helper library instead of manually map PIO to memory
- altera_gpio_chip inline struct documentation to kerneldoc
- Using dev_ print to print a better failure message
v2, v3:
- Do not reference NO_IRQ
- Updated irq_set_type to only allow the hardware configured irq type
Signed-off-by: Tien Hock Loh <thloh@altera.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add device managed variants of gpiod_get_array() / gpiod_put_array()
functions for conveniently obtaining and disposing of an entire array
of GPIOs with one function call.
Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Introduce new functions for conveniently obtaining and disposing of
an entire array of GPIOs with one function call.
ACPI parts tested by Mika Westerberg, DT parts tested by Rojhalat
Ibrahim.
Change log:
v5: move the ACPI functions to gpiolib-acpi.c
v4: - use shorter names for members of struct gpio_descs
- rename lut_gpio_count to platform_gpio_count for clarity
- add check for successful memory allocation
- use ERR_CAST()
v3: - rebase on current linux-gpio devel branch
- fix ACPI GPIO counting
- allow for zero-sized arrays
- make the flags argument mandatory for the new functions
- clarify documentation
v2: change interface
Suggested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Rojhalat Ibrahim <imr@rtschenk.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Avoid multiple identical definitions of the gpio suffix strings by putting
them into a global constant array.
Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The gpio binding document says that new code should always use named
gpios. Patch 40b73183 added support to parse a list of gpios from child
nodes, but does not make it possible to use named gpios. This patch adds
the con_id property and implements it is done in gpiolib.c, where the
old-style of using unnamed gpios still works.
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Acked-by: Bryan Wu <cooloney@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The pcf857x GPIO and interrupt controller uses dummy_irq_chip, which
does not implement irq_chip.irq_set_wake() and does not set
IRQCHIP_SKIP_SET_WAKE.
This causes two s2ram issues if wake-up is enabled for the pcf857x GPIO
pins:
1. During resume from s2ram, the following warning is printed:
WARNING: CPU: 0 PID: 1046 at kernel/irq/manage.c:537 irq_set_irq_wake+0x9c/0xf8()
Unbalanced IRQ 113 wake disable
2. Wake-up through the pcf857x GPIO pins may fail, as the parent
interrupt controller may be suspended.
Migrate the pcf857x GPIO and interrupt controller from dummy_irq_chip to
its own irq_chip. This irq chip implements irq_chip.irq_set_wake() to
propagate its wake-up setting to the parent interrupt controller.
This fixes wake-up through gpio-keys on sh73a0/kzm9g, where the pcf857x
interrupt is cascaded to irq-renesas-intc-irqpin, and the latter must
not be suspended when wake-up is enabled.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Switch the PCF857x GPIO driver to use the gpiolib irqchip helpers.
This driver uses a nested threaded interrupt, hence handle_nested_irq()
and gpiochip_set_chained_irqchip() must be used.
Note that this removes the checks added in commit 21fd3cd187
("gpio: pcf857x: call the gpio user handler iff gpio_to_irq is done"),
as the interrupt mappings are no longer created on-demand by the driver,
but by gpiochip_irqchip_add() during initialization.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Based on Boris Brezillion's work this is a reworked patch
of his initial GPIO hogging mechanism.
This patch provides a way to initially configure specific GPIO
when the GPIO controller is probed.
The actual DT scanning to collect the GPIO specific data is performed
as part of gpiochip_add().
The purpose of this is to allow specific GPIOs to be configured
without any driver specific code.
This is particularly useful because board design are getting
increasingly complex and given SoC pins can now have more
than 10 mux values, a lot of connections are now dependent on
external IO muxes to switch various modes.
Specific drivers should not necessarily need to be aware of
what accounts to a specific board implementation. This board level
"description" should be best kept as part of the dts file.
Signed-off-by: Benoit Parrot <bparrot@ti.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Take a sweep to bring the irq support for the MAX732x expanders
into the gpiolib core to cut down on duplicated code.
Only compile tested! I need some feedback from people using this
expander with interrupts to tell me if things go right or
wrong when I do this.
Cc: Semen Protsenko <semen.protsenko@globallogic.com>
Cc: Mans Rullgard <mans@mansr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
.. after extensive statistical analysis of my G+ polling, I've come to
the inescapable conclusion that internet polls are bad.
Big surprise.
But "Hurr durr I'ma sheep" trounced "I like online polls" by a 62-to-38%
margin, in a poll that people weren't even supposed to participate in.
Who can argue with solid numbers like that? 5,796 votes from people who
can't even follow the most basic directions?
In contrast, "v4.0" beat out "v3.20" by a slimmer margin of 56-to-44%,
but with a total of 29,110 votes right now.
Now, arguably, that vote spread is only about 3,200 votes, which is less
than the almost six thousand votes that the "please ignore" poll got, so
it could be considered noise.
But hey, I asked, so I'll honor the votes.
and read-only images (for which the implementation is mostly just the
reserved code point for a read-only feature :-)
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Ext4 bug fixes.
We also reserved code points for encryption and read-only images (for
which the implementation is mostly just the reserved code point for a
read-only feature :-)"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix indirect punch hole corruption
ext4: ignore journal checksum on remount; don't fail
ext4: remove duplicate remount check for JOURNAL_CHECKSUM change
ext4: fix mmap data corruption in nodelalloc mode when blocksize < pagesize
ext4: support read-only images
ext4: change to use setup_timer() instead of init_timer()
ext4: reserve codepoints used by the ext4 encryption feature
jbd2: complain about descriptor block checksum errors
Pull more vfs updates from Al Viro:
"Assorted stuff from this cycle. The big ones here are multilayer
overlayfs from Miklos and beginning of sorting ->d_inode accesses out
from David"
* 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (51 commits)
autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation
procfs: fix race between symlink removals and traversals
debugfs: leave freeing a symlink body until inode eviction
Documentation/filesystems/Locking: ->get_sb() is long gone
trylock_super(): replacement for grab_super_passive()
fanotify: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
SELinux: Use d_is_positive() rather than testing dentry->d_inode
Smack: Use d_is_positive() rather than testing dentry->d_inode
TOMOYO: Use d_is_dir() rather than d_inode and S_ISDIR()
Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inode
Apparmor: mediated_filesystem() should use dentry->d_sb not inode->i_sb
VFS: Split DCACHE_FILE_TYPE into regular and special types
VFS: Add a fallthrough flag for marking virtual dentries
VFS: Add a whiteout dentry type
VFS: Introduce inode-getting helpers for layered/unioned fs environments
Infiniband: Fix potential NULL d_inode dereference
posix_acl: fix reference leaks in posix_acl_create
autofs4: Wrong format for printing dentry
...
Pull ARM fix from Russell King:
"Just one fix this time around. __iommu_alloc_buffer() can cause a
BUG() if dma_alloc_coherent() is called with either __GFP_DMA32 or
__GFP_HIGHMEM set. The patch from Alexandre addresses this"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 8305/1: DMA: Fix kzalloc flags in __iommu_alloc_buffer()
As it is, we have debugfs_remove() racing with symlink traversals.
Supply ->evict_inode() and do freeing there - inode will remain
pinned until we are done with the symlink body.
And rip the idiocy with checking if dentry is positive right after
we'd verified debugfs_positive(), which is a stronger check...
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
I've noticed significant locking contention in memory reclaimer around
sb_lock inside grab_super_passive(). Grab_super_passive() is called from
two places: in icache/dcache shrinkers (function super_cache_scan) and
from writeback (function __writeback_inodes_wb). Both are required for
progress in memory allocator.
Grab_super_passive() acquires sb_lock to increment sb->s_count and check
sb->s_instances. It seems sb->s_umount locked for read is enough here:
super-block deactivation always runs under sb->s_umount locked for write.
Protecting super-block itself isn't a problem: in super_cache_scan() sb
is protected by shrinker_rwsem: it cannot be freed if its slab shrinkers
are still active. Inside writeback super-block comes from inode from bdi
writeback list under wb->list_lock.
This patch removes locking sb_lock and checks s_instances under s_umount:
generic_shutdown_super() unlinks it under sb->s_umount locked for write.
New variant is called trylock_super() and since it only locks semaphore,
callers must call up_read(&sb->s_umount) instead of drop_super(sb) when
they're done.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Fanotify probably doesn't want to watch autodirs so make it use d_can_lookup()
rather than d_is_dir() when checking a dir watch and give an error on fake
directories.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Fix up the following scripted S_ISDIR/S_ISREG/S_ISLNK conversions (or lack
thereof) in cachefiles:
(1) Cachefiles mostly wants to use d_can_lookup() rather than d_is_dir() as
it doesn't want to deal with automounts in its cache.
(2) Coccinelle didn't find S_IS* expressions in ASSERT() statements in
cachefiles.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Convert the following where appropriate:
(1) S_ISLNK(dentry->d_inode) to d_is_symlink(dentry).
(2) S_ISREG(dentry->d_inode) to d_is_reg(dentry).
(3) S_ISDIR(dentry->d_inode) to d_is_dir(dentry). This is actually more
complicated than it appears as some calls should be converted to
d_can_lookup() instead. The difference is whether the directory in
question is a real dir with a ->lookup op or whether it's a fake dir with
a ->d_automount op.
In some circumstances, we can subsume checks for dentry->d_inode not being
NULL into this, provided we the code isn't in a filesystem that expects
d_inode to be NULL if the dirent really *is* negative (ie. if we're going to
use d_inode() rather than d_backing_inode() to get the inode pointer).
Note that the dentry type field may be set to something other than
DCACHE_MISS_TYPE when d_inode is NULL in the case of unionmount, where the VFS
manages the fall-through from a negative dentry to a lower layer. In such a
case, the dentry type of the negative union dentry is set to the same as the
type of the lower dentry.
However, if you know d_inode is not NULL at the call site, then you can use
the d_is_xxx() functions even in a filesystem.
There is one further complication: a 0,0 chardev dentry may be labelled
DCACHE_WHITEOUT_TYPE rather than DCACHE_SPECIAL_TYPE. Strictly, this was
intended for special directory entry types that don't have attached inodes.
The following perl+coccinelle script was used:
use strict;
my @callers;
open($fd, 'git grep -l \'S_IS[A-Z].*->d_inode\' |') ||
die "Can't grep for S_ISDIR and co. callers";
@callers = <$fd>;
close($fd);
unless (@callers) {
print "No matches\n";
exit(0);
}
my @cocci = (
'@@',
'expression E;',
'@@',
'',
'- S_ISLNK(E->d_inode->i_mode)',
'+ d_is_symlink(E)',
'',
'@@',
'expression E;',
'@@',
'',
'- S_ISDIR(E->d_inode->i_mode)',
'+ d_is_dir(E)',
'',
'@@',
'expression E;',
'@@',
'',
'- S_ISREG(E->d_inode->i_mode)',
'+ d_is_reg(E)' );
my $coccifile = "tmp.sp.cocci";
open($fd, ">$coccifile") || die $coccifile;
print($fd "$_\n") || die $coccifile foreach (@cocci);
close($fd);
foreach my $file (@callers) {
chomp $file;
print "Processing ", $file, "\n";
system("spatch", "--sp-file", $coccifile, $file, "--in-place", "--no-show-diff") == 0 ||
die "spatch failed";
}
[AV: overlayfs parts skipped]
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Use d_is_positive() rather than testing dentry->d_inode in SELinux to get rid
of direct references to d_inode outside of the VFS.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Use d_is_positive() rather than testing dentry->d_inode in Smack to get rid of
direct references to d_inode outside of the VFS.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Use d_is_dir() rather than d_inode and S_ISDIR(). Note that this will include
fake directories such as automount triggers.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Use d_is_positive(dentry) or d_is_negative(dentry) rather than testing
dentry->d_inode as the dentry may cover another layer that has an inode when
the top layer doesn't or may hold a 0,0 chardev that's actually a whiteout.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
mediated_filesystem() should use dentry->d_sb not dentry->d_inode->i_sb and
should avoid file_inode() also since it is really dealing with the path.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Split DCACHE_FILE_TYPE into DCACHE_REGULAR_TYPE (dentries representing regular
files) and DCACHE_SPECIAL_TYPE (representing blockdev, chardev, FIFO and
socket files).
d_is_reg() and d_is_special() are added to detect these subtypes and
d_is_file() is left as the union of the two.
This allows a number of places that use S_ISREG(dentry->d_inode->i_mode) to
use d_is_reg(dentry) instead.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Add a DCACHE_FALLTHRU flag to indicate that, in a layered filesystem, this is
a virtual dentry that covers another one in a lower layer that should be used
instead. This may be recorded on medium if directory integration is stored
there.
The flag can be set with d_set_fallthru() and tested with d_is_fallthru().
Original-author: Valerie Aurora <vaurora@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Add DCACHE_WHITEOUT_TYPE and provide a d_is_whiteout() accessor function. A
d_is_miss() accessor is also added for ordinary cache misses and
d_is_negative() is modified to indicate either an ordinary miss or an enforced
miss (whiteout).
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Introduce some function for getting the inode (and also the dentry) in an
environment where layered/unioned filesystems are in operation.
The problem is that we have places where we need *both* the union dentry and
the lower source or workspace inode or dentry available, but we can only have
a handle on one of them. Therefore we need to derive the handle to the other
from that.
The idea is to introduce an extra field in struct dentry that allows the union
dentry to refer to and pin the lower dentry.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Pull MIPS updates from Ralf Baechle:
"This is the main pull request for MIPS:
- a number of fixes that didn't make the 3.19 release.
- a number of cleanups.
- preliminary support for Cavium's Octeon 3 SOCs which feature up to
48 MIPS64 R3 cores with FPU and hardware virtualization.
- support for MIPS R6 processors.
Revision 6 of the MIPS architecture is a major revision of the MIPS
architecture which does away with many of original sins of the
architecture such as branch delay slots. This and other changes in
R6 require major changes throughout the entire MIPS core
architecture code and make up for the lion share of this pull
request.
- finally some preparatory work for eXtendend Physical Address
support, which allows support of up to 40 bit of physical address
space on 32 bit processors"
[ Ahh, MIPS can't leave the PAE brain damage alone. It's like
every CPU architect has to make that mistake, but pee in the snow
by changing the TLA. But whether it's called PAE, LPAE or XPA,
it's horrid crud - Linus ]
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (114 commits)
MIPS: sead3: Corrected get_c0_perfcount_int
MIPS: mm: Remove dead macro definitions
MIPS: OCTEON: irq: add CIB and other fixes
MIPS: OCTEON: Don't do acknowledge operations for level triggered irqs.
MIPS: OCTEON: More OCTEONIII support
MIPS: OCTEON: Remove setting of processor specific CVMCTL icache bits.
MIPS: OCTEON: Core-15169 Workaround and general CVMSEG cleanup.
MIPS: OCTEON: Update octeon-model.h code for new SoCs.
MIPS: OCTEON: Implement DCache errata workaround for all CN6XXX
MIPS: OCTEON: Add little-endian support to asm/octeon/octeon.h
MIPS: OCTEON: Implement the core-16057 workaround
MIPS: OCTEON: Delete unused COP2 saving code
MIPS: OCTEON: Use correct instruction to read 64-bit COP0 register
MIPS: OCTEON: Save and restore CP2 SHA3 state
MIPS: OCTEON: Fix FP context save.
MIPS: OCTEON: Save/Restore wider multiply registers in OCTEON III CPUs
MIPS: boot: Provide more uImage options
MIPS: Remove unneeded #ifdef __KERNEL__ from asm/processor.h
MIPS: ip22-gio: Remove legacy suspend/resume support
mips: pci: Add ifdef around pci_proc_domain
...
A few fixes that came in too late to make it into the first set of pull
requests but would still be nice to have in -rc1. The majority of these
are trivial build fixes for bugs that I found myself using randconfig
testing, and a set of two patches from Uwe to mark DT strings as 'const'
where appropriate, to resolve inconsistent section attributes.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"A few fixes that came in too late to make it into the first set of
pull requests but would still be nice to have in -rc1.
The majority of these are trivial build fixes for bugs that I found
myself using randconfig testing, and a set of two patches from Uwe to
mark DT strings as 'const' where appropriate, to resolve inconsistent
section attributes"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: make of_device_ids const
ARM: make arrays containing machine compatible strings const
ARM: mm: Remove Kconfig symbol CACHE_PL310
ARM: rockchip: force built-in regulator support for PM
ARM: mvebu: build armada375-smp code conditionally
ARM: sti: always enable RESET_CONTROLLER
ARM: rockchip: make rockchip_suspend_init conditional
ARM: ixp4xx: fix {in,out}s{bwl} data types
ARM: prima2: do not select SMP_ON_UP
ARM: at91: fix pm declarations
ARM: davinci: multi-soc kernels require AUTO_ZRELADDR
ARM: davinci: davinci_cfg_reg cannot be init
ARM: BCM: put back ARCH_MULTI_V7 dependency for mobile
ARM: vexpress: use ARM_CPU_SUSPEND if needed
ARM: dts: add I2C device nodes for Broadcom Cygnus
ARM: dts: BCM63xx: fix L2 cache properties
This is a short patch set representing a couple of left overs from the merge
window (debug leftover removal and MAINTAINER changes) plus one merge window
regression (the local workqueue for hpsa) and a set of bug fixes for several
issues (two for scsi-mq and the rest an assortment of long standing stuff, all
cc'd to stable).
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull misc SCSI patches from James Bottomley:
"This is a short patch set representing a couple of left overs from the
merge window (debug removal and MAINTAINER changes).
Plus one merge window regression (the local workqueue for hpsa) and a
set of bug fixes for several issues (two for scsi-mq and the rest an
assortment of long standing stuff, all cc'd to stable)"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
sg: fix EWOULDBLOCK errors with scsi-mq
sg: fix unkillable I/O wait deadlock with scsi-mq
sg: fix read() error reporting
wd719x: add missing .module to wd719x_template
hpsa: correct compiler warnings introduced by hpsa-add-local-workqueue patch
fixed invalid assignment of 64bit mask to host dma_boundary for scatter gather segment boundary limit.
fcoe: Transition maintainership to Vasu
am53c974: remove left-over debugging code
This update contains the implementation of the PNFS server export
methods that enable use of XFS filesystems as a block layout target.
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Merge tag 'xfs-pnfs-for-linus-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pull xfs pnfs block layout support from Dave Chinner:
"This contains the changes to XFS needed to support the PNFS block
layout server that you pulled in through Bruce's NFS server tree
merge.
I originally thought that I'd need to merge changes into the NFS
server side, but Bruce had already picked them up and so this is
purely changes to the fs/xfs/ codebase.
Summary:
This update contains the implementation of the PNFS server export
methods that enable use of XFS filesystems as a block layout target"
* tag 'xfs-pnfs-for-linus-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs:
xfs: recall pNFS layouts on conflicting access
xfs: implement pNFS export operations
Highlights include:
- Fix a use-after-free in decode_cb_sequence_args()
- Fix a compile error when #undef CONFIG_PROC_FS
- NFSv4.1 backchannel spinlocking issue
- Cleanups in the NFS unstable write code requested by Linus
- NFSv4.1 fix issues when the server denies our backchannel request
- Cleanups in create_session and bind_conn_to_session
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Merge tag 'nfs-for-3.20-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull more NFS client updates from Trond Myklebust:
"Highlights include:
- Fix a use-after-free in decode_cb_sequence_args()
- Fix a compile error when #undef CONFIG_PROC_FS
- NFSv4.1 backchannel spinlocking issue
- Cleanups in the NFS unstable write code requested by Linus
- NFSv4.1 fix issues when the server denies our backchannel request
- Cleanups in create_session and bind_conn_to_session"
* tag 'nfs-for-3.20-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFSv4.1: Clean up bind_conn_to_session
NFSv4.1: Always set up a forward channel when binding the session
NFSv4.1: Don't set up a backchannel if the server didn't agree to do so
NFSv4.1: Clean up create_session
pnfs: Refactor the *_layout_mark_request_commit to use pnfs_layout_mark_request_commit
NFSv4: Kill unused nfs_inode->delegation_state field
NFS: struct nfs_commit_info.lock must always point to inode->i_lock
nfs: Can call nfs_clear_page_commit() instead
nfs: Provide and use helper functions for marking a page as unstable
SUNRPC: Always manipulate rpc_rqst::rq_bc_pa_list under xprt->bc_pa_lock
SUNRPC: Fix a compile error when #undef CONFIG_PROC_FS
NFSv4.1: Convert open-coded array allocation calls to kmalloc_array()
NFSv4.1: Fix a kfree() of uninitialised pointers in decode_cb_sequence_args
- Revert a recent ACPI LPSS driver commit that prevented the touchpad
driver from loading on Dell XPS13 (Jarkko Nikula).
- Make the ACPI LPSS driver disable the I2C controllers and deassert
SPI host controllers resets at startup on Intel BayTrail and Braswell
SoCs in case they have been left in wrong states by the platform
firmware which then may casuse fatal controller driver failures during
resume from hibernation (Mika Westerberg).
- Make two recently added ACPI EC messages look better (Scot Doyle).
- Reduce the printk level of a recently added debug message related to
ACPI resources that may become noisy in some cases (Rafael J Wysocki).
- Add a new ACPI backlight blacklist entry for Samsung Series 9
(900X3C/900X3D/900X3E/900X4C/900X4D) laptops where the native backlight
interface doesn't work while the ACPI based one does (Jens Reyer).
- Make the PNP sybsystem's core code use __request_region() followed by
__release_region() instead of __check_region() which then will allow
us to get rid of the latter as it has no more users (Jakub Sitnicki).
- Fix a build breakage and an issue with two __init functions that may be
called after initialization in the s3c cpufreq driver (Arnd Bergmann).
- Make the powernv cpuidle driver read target_residency values for idle
states from a Device Tree (as we have the suitable DT bindings for that
now) and improve the parsing of the powermgmt DT node in that driver
(Preeti U Murthy).
/
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Merge tag 'pm+acpi-3.20-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull one more batch of power management and ACPI updates from Rafael Wysocki:
"These are mostly fixes on top of the previously merged recent PM and
ACPI material.
First, one commit that broke the ACPI LPSS (Low-Power Subsystem)
driver on a Dell box is reverted and there are two stable-candidate
fixes for that driver. Another fix cleans up two recently added ACPI
EC messages that look odd and the printk level of a noisy debug
message in the core ACPI resources handling code is reduced.
In addition to that we have two stable-candidate fixes for the s3c
cpufreq driver, two cpuidle powernv driver updates related to Device
Trees and a PNP subsystem cleanup that will allow us to get rid of
some old ugliness going forward. Also there is a new blacklist entry
for the ACPI backlight code.
Specifics:
- Revert a recent ACPI LPSS driver commit that prevented the touchpad
driver from loading on Dell XPS13 (Jarkko Nikula).
- Make the ACPI LPSS driver disable the I2C controllers and deassert
SPI host controllers resets at startup on Intel BayTrail and
Braswell SoCs in case they have been left in wrong states by the
platform firmware which then may casuse fatal controller driver
failures during resume from hibernation (Mika Westerberg).
- Make two recently added ACPI EC messages look better (Scot Doyle).
- Reduce the printk level of a recently added debug message related
to ACPI resources that may become noisy in some cases (Rafael J
Wysocki).
- Add a new ACPI backlight blacklist entry for Samsung Series 9
(900X3C/900X3D/900X3E/900X4C/900X4D) laptops where the native
backlight interface doesn't work while the ACPI based one does
(Jens Reyer).
- Make the PNP sybsystem's core code use __request_region() followed
by __release_region() instead of __check_region() which then will
allow us to get rid of the latter as it has no more users (Jakub
Sitnicki).
- Fix a build breakage and an issue with two __init functions that
may be called after initialization in the s3c cpufreq driver (Arnd
Bergmann).
- Make the powernv cpuidle driver read target_residency values for
idle states from a Device Tree (as we have the suitable DT bindings
for that now) and improve the parsing of the powermgmt DT node in
that driver (Preeti U Murthy)"
* tag 'pm+acpi-3.20-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpuidle: powernv: Avoid endianness conversions while parsing DT
cpufreq: s3c: remove last use of resume_clocks callback
cpufreq: s3c: remove incorrect __init annotations
ACPI / LPSS: Deassert resets for SPI host controllers on Braswell
ACPI / LPSS: Always disable I2C host controllers
ACPI / resources: Change pr_info() to pr_debug() for debug information
ACPI / video: Disable native backlight on Samsung Series 9 laptops
cpuidle: powernv: Read target_residency value of idle states from DT if available
Revert "ACPI / LPSS: Remove non-existing clock control from Intel Lynxpoint I2C"
ACPI / EC: Remove non-standard log emphasis
PNP: Switch from __check_region() to __request_region()
Pull followup block layer updates from Jens Axboe:
"Two things in this pull request:
- A block throttle oops fix (marked for stable) from Thadeu.
- The NVMe fixes/features queued up for 3.20, but merged later in the
process. From Keith. We should have gotten this merged earlier,
we're ironing out the kinks in the process. Will be ready for the
initial pull next series"
* 'for-linus' of git://git.kernel.dk/linux-block:
blk-throttle: check stats_cpu before reading it from sysfs
NVMe: Fix potential corruption on sync commands
NVMe: Remove unused variables
NVMe: Fix scsi mode select llbaa setting
NVMe: Fix potential corruption during shutdown
NVMe: Asynchronous controller probe
NVMe: Register management handle under nvme class
NVMe: Update SCSI Inquiry VPD 83h translation
NVMe: Metadata format support
to changes that enable effective use of an unbound workqueue across
all available CPUs. A large battery of tests were performed to
validate these changes, summary of results is available here:
https://www.redhat.com/archives/dm-devel/2015-February/msg00106.html
- A few additional stable fixes (to DM core, dm-snapshot and dm-mirror)
and a small fix to the dm-space-map-disk.
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Merge tag 'dm-3.20-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull more device mapper changes from Mike Snitzer:
- Significant dm-crypt CPU scalability performance improvements thanks
to changes that enable effective use of an unbound workqueue across
all available CPUs. A large battery of tests were performed to
validate these changes, summary of results is available here:
https://www.redhat.com/archives/dm-devel/2015-February/msg00106.html
- A few additional stable fixes (to DM core, dm-snapshot and dm-mirror)
and a small fix to the dm-space-map-disk.
* tag 'dm-3.20-changes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm snapshot: fix a possible invalid memory access on unload
dm: fix a race condition in dm_get_md
dm crypt: sort writes
dm crypt: add 'submit_from_crypt_cpus' option
dm crypt: offload writes to thread
dm crypt: remove unused io_pool and _crypt_io_pool
dm crypt: avoid deadlock in mempools
dm crypt: don't allocate pages for a partial request
dm crypt: use unbound workqueue for request processing
dm io: reject unsupported DISCARD requests with EOPNOTSUPP
dm mirror: do not degrade the mirror on discard error
dm space map disk: fix sm_disk_count_is_more_than_one()
Pull SCSI target updates from Nicholas Bellinger:
"The highlights this round include:
- Update vhost-scsi to support F_ANY_LAYOUT using mm/iov_iter.c
logic, and signal VERSION_1 support (MST + Viro + nab)
- Fix iscsi/iser-target to remove problematic active_ts_set usage
(Gavin Guo)
- Update iscsi/iser-target to support multi-sequence sendtargets
(Sagi)
- Fix original PR_APTPL_BUF_LEN 8k size limitation (Martin Svec)
- Add missing WRITE_SAME end-of-device sanity check (Bart)
- Check for LBA + sectors wrap-around in sbc_parse_cdb() (nab)
- Other various minor SPC/SBC compliance fixes based upon Ronnie
Sahlberg test suite (nab)"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (32 commits)
target: Set LBPWS10 bit in Logical Block Provisioning EVPD
target: Fail UNMAP when emulate_tpu=0
target: Fail WRITE_SAME w/ UNMAP=1 when emulate_tpws=0
target: Add sanity checks for DPO/FUA bit usage
target: Perform PROTECT sanity checks for WRITE_SAME
target: Fail I/O with PROTECT bit when protection is unsupported
target: Check for LBA + sectors wrap-around in sbc_parse_cdb
target: Add missing WRITE_SAME end-of-device sanity check
iscsi-target: Avoid IN_LOGOUT failure case for iser-target
target: Fix PR_APTPL_BUF_LEN buffer size limitation
iscsi-target: Drop problematic active_ts_list usage
iscsi/iser-target: Support multi-sequence sendtargets text response
iser-target: Remove duplicate function names
vhost/scsi: potential memory corruption
vhost/scsi: Global tcm_vhost -> vhost_scsi rename
vhost/scsi: Drop left-over scsi_tcq.h include
vhost/scsi: Set VIRTIO_F_ANY_LAYOUT + VIRTIO_F_VERSION_1 feature bits
vhost/scsi: Add ANY_LAYOUT support in vhost_scsi_handle_vq
vhost/scsi: Add ANY_LAYOUT iov -> sgl mapping prerequisites
vhost/scsi: Change vhost_scsi_map_to_sgl to accept iov ptr + len
...
Pull more input updates from Dmitry Torokhov:
"The second round of updates for the input subsystem.
Updates to ALPS an bfin_roraty drivers and a couple oother fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: psmouse - use IS_ENABLED instead of homegrown code
Input: bfin_rotary - introduce open and close methods
Input: bfin_rotary - convert to use managed resources
Input: bfin_rotary - use generic IO functions
Input: bfin_rotary - move pin lists into into platform data
Input: bfin_rotary - move platform header to linux/platform_data
Input: bfin_rotary - mark suspend and resume code as __maybe_unused
Input: bfin_rotary - fix potential oops in interrupt handler
Input: ALPS - move v7 packet info to Documentation and v6 packet info
Input: ALPS - fix confusing comment in protocol data
Input: ALPS - do not mix trackstick and external PS/2 mouse data
Input: ALPS - fix trackstick detection on some Dell Latitudes
Input: ALPS - consolidate setting protocol parameters
Input: ALPS - split protocol data from model info
Input: ALPS - make Rushmore a separate protocol
Input: ALPS - renumber protocol numbers
Input: adi - remove an unnecessary check
Input: pxa27x_keypad - remove an unneeded NULL check
Input: soc_button_array - use "Windows" key for "Home"
