Pull KVM changes from Avi Kivity:
"Changes include additional instruction emulation, page-crossing MMIO,
faster dirty logging, preventing the watchdog from killing a stopped
guest, module autoload, a new MSI ABI, and some minor optimizations
and fixes. Outside x86 we have a small s390 and a very large ppc
update.
Regarding the new (for kvm) rebaseless workflow, some of the patches
that were merged before we switch trees had to be rebased, while
others are true pulls. In either case the signoffs should be correct
now."
Fix up trivial conflicts in Documentation/feature-removal-schedule.txt
arch/powerpc/kvm/book3s_segment.S and arch/x86/include/asm/kvm_para.h.
I suspect the kvm_para.h resolution ends up doing the "do I have cpuid"
check effectively twice (it was done differently in two different
commits), but better safe than sorry ;)
* 'next' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (125 commits)
KVM: make asm-generic/kvm_para.h have an ifdef __KERNEL__ block
KVM: s390: onereg for timer related registers
KVM: s390: epoch difference and TOD programmable field
KVM: s390: KVM_GET/SET_ONEREG for s390
KVM: s390: add capability indicating COW support
KVM: Fix mmu_reload() clash with nested vmx event injection
KVM: MMU: Don't use RCU for lockless shadow walking
KVM: VMX: Optimize %ds, %es reload
KVM: VMX: Fix %ds/%es clobber
KVM: x86 emulator: convert bsf/bsr instructions to emulate_2op_SrcV_nobyte()
KVM: VMX: unlike vmcs on fail path
KVM: PPC: Emulator: clean up SPR reads and writes
KVM: PPC: Emulator: clean up instruction parsing
kvm/powerpc: Add new ioctl to retreive server MMU infos
kvm/book3s: Make kernel emulated H_PUT_TCE available for "PR" KVM
KVM: PPC: bookehv: Fix r8/r13 storing in level exception handler
KVM: PPC: Book3S: Enable IRQs during exit handling
KVM: PPC: Fix PR KVM on POWER7 bare metal
KVM: PPC: Fix stbux emulation
KVM: PPC: bookehv: Use lwz/stw instead of PPC_LL/PPC_STL for 32-bit fields
...
* Extend the APIC ops implementation and add IRQ_WORKER vector support so that 'perf' can work properly.
* Fix self-ballooning code, and balloon logic when booting as initial domain.
* Move array printing code to generic debugfs
* Support XenBus domains.
* Lazily free grants when a domain is dead/non-existent.
* In M2P code use batching calls
Bug-fixes:
* Fix NULL dereference in allocation failure path (hvc_xen)
* Fix unbinding of IRQ_WORKER vector during vCPU hot-unplug
* Fix HVM guest resume - we would leak an PIRQ value instead of reusing the existing one.
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Merge tag 'stable/for-linus-3.5-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull Xen updates from Konrad Rzeszutek Wilk:
"Features:
* Extend the APIC ops implementation and add IRQ_WORKER vector
support so that 'perf' can work properly.
* Fix self-ballooning code, and balloon logic when booting as initial
domain.
* Move array printing code to generic debugfs
* Support XenBus domains.
* Lazily free grants when a domain is dead/non-existent.
* In M2P code use batching calls
Bug-fixes:
* Fix NULL dereference in allocation failure path (hvc_xen)
* Fix unbinding of IRQ_WORKER vector during vCPU hot-unplug
* Fix HVM guest resume - we would leak an PIRQ value instead of
reusing the existing one."
Fix up add-add onflicts in arch/x86/xen/enlighten.c due to addition of
apic ipi interface next to the new apic_id functions.
* tag 'stable/for-linus-3.5-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: do not map the same GSI twice in PVHVM guests.
hvc_xen: NULL dereference on allocation failure
xen: Add selfballoning memory reservation tunable.
xenbus: Add support for xenbus backend in stub domain
xen/smp: unbind irqworkX when unplugging vCPUs.
xen: enter/exit lazy_mmu_mode around m2p_override calls
xen/acpi/sleep: Enable ACPI sleep via the __acpi_os_prepare_sleep
xen: implement IRQ_WORK_VECTOR handler
xen: implement apic ipi interface
xen/setup: update VA mapping when releasing memory during setup
xen/setup: Combine the two hypercall functions - since they are quite similar.
xen/setup: Populate freed MFNs from non-RAM E820 entries and gaps to E820 RAM
xen/setup: Only print "Freeing XXX-YYY pfn range: Z pages freed" if Z > 0
xen/gnttab: add deferred freeing logic
debugfs: Add support to print u32 array in debugfs
xen/p2m: An early bootup variant of set_phys_to_machine
xen/p2m: Collapse early_alloc_p2m_middle redundant checks.
xen/p2m: Allow alloc_p2m_middle to call reserve_brk depending on argument
xen/p2m: Move code around to allow for better re-usage.
Pull sparc changes from David S. Miller:
"This has the generic strncpy_from_user() implementation architectures
can now use, which we've been developing on linux-arch over the past
few days.
For good measure I ran both a 32-bit and a 64-bit glibc testsuite run,
and the latter of which pointed out an adjustment I needed to make to
sparc's user_addr_max() definition. Linus, you were right, STACK_TOP
was not the right thing to use, even on sparc itself :-)
From Sam Ravnborg, we have a conversion of sparc32 over to the common
alloc_thread_info_node(), since the aspect which originally blocked
our doing so (sun4c) has been removed."
Fix up trivial arch/sparc/Kconfig and lib/Makefile conflicts.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc: Fix user_addr_max() definition.
lib: Sparc's strncpy_from_user is generic enough, move under lib/
kernel: Move REPEAT_BYTE definition into linux/kernel.h
sparc: Increase portability of strncpy_from_user() implementation.
sparc: Optimize strncpy_from_user() zero byte search.
sparc: Add full proper error handling to strncpy_from_user().
sparc32: use the common implementation of alloc_thread_info_node()
Pull more relocation fixes from Peter Anvin:
"These are additional symbols that have been found to either be
absolute or look like they might end up being absolute on one version
of GNU ld or another. Unfortunately we have since that a different
GNU ld version, 2.21, can generate bogus absolute symbols; again, this
would have caused a malfunctioning kernel on x86-32 if relocated.
The relocs.c changes changed silent corruption to a build time error.
It is worth noting that if the various barrier symbols we use were
more consistent in the namespace used this probably could be reduced
to a single regexp; if nothing else it looks like there is migration
toward a common __(start|stop)___.* namespace."
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, relocs: Add jiffies and jiffies_64 to the relative whitelist
x86-32, relocs: Whitelist more symbols for ld bug workaround
Lots of gpio changes, both to core code and drivers. Changes do touch
architecture code to remove the need for separate arm/gpio.h includes
in most architectures. Some new drivers are added, and a number of
gpio drivers are converted to use irq_domains for gpio inputs used as
interrupts. Device tree support has been amended to allow multiple
gpio_chips to use the same device tree node. Remaining changes are
primarily bug fixes.
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Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6
Pull GPIO driver changes from Grant Likely:
"Lots of gpio changes, both to core code and drivers.
Changes do touch architecture code to remove the need for separate
arm/gpio.h includes in most architectures.
Some new drivers are added, and a number of gpio drivers are converted
to use irq_domains for gpio inputs used as interrupts. Device tree
support has been amended to allow multiple gpio_chips to use the same
device tree node.
Remaining changes are primarily bug fixes."
* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6: (33 commits)
gpio/generic: initialize basic_mmio_gpio shadow variables properly
gpiolib: Remove 'const' from data argument of gpiochip_find()
gpio/rc5t583: add gpio driver for RICOH PMIC RC5T583
gpiolib: quiet gpiochip_add boot message noise
gpio: mpc8xxx: Prevent NULL pointer deref in demux handler
gpio/lpc32xx: Add device tree support
gpio: Adjust of_xlate API to support multiple GPIO chips
gpiolib: Implement devm_gpio_request_one()
gpio-mcp23s08: dbg_show: fix pullup configuration display
Add support for TCA6424A
gpio/omap: (re)fix wakeups on level-triggered GPIOs
gpio/omap: fix broken context restore for non-OFF mode transitions
gpio/omap: fix missing check in *_runtime_suspend()
gpio/omap: remove cpu_is_omapxxxx() checks from *_runtime_resume()
gpio/omap: remove suspend/resume callbacks
gpio/omap: remove retrigger variable in gpio_irq_handler
gpio/omap: remove saved_wakeup field from struct gpio_bank
gpio/omap: remove suspend_wakeup field from struct gpio_bank
gpio/omap: remove saved_fallingdetect, saved_risingdetect
gpio/omap: remove virtual_irq_start variable
...
Conflicts:
drivers/gpio/gpio-samsung.c
Pull alpha updates from Matt Turner:
"This pull adds the implementations of some Tru64 syscalls which allow
some proprietary software such as the C compiler to work on Linux.
Also, it adds some big-endian ioread functions to help us get closer
to building allyesconfig."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha:
alpha: add io{read,write}{16,32}be functions
alpha: implement various OSF/1 stat syscalls
alpha: implement setsysinfo(SSI_LMF) as a no-op
We need to use TASK_SIZE because for 64-bit tasks the value
of STACK_TOP actually sits in the middle of the address space
so we'll get false-negatives.
Adjust the TASK_SIZE definition on sparc64 to accomodate this,
in the context in which user_addr_max() is used we have the
test_thread_flag() definition available but not the one for
test_tsk_thread_flag().
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull timer updates from Thomas Gleixner.
Various trivial conflict fixups in arch Kconfig due to addition of
unrelated entries nearby. And one slightly more subtle one for sparc32
(new user of GENERIC_CLOCKEVENTS), fixed up as per Thomas.
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
timekeeping: Fix a few minor newline issues.
time: remove obsolete declaration
ntp: Fix a stale comment and a few stray newlines.
ntp: Correct TAI offset during leap second
timers: Fixup the Kconfig consolidation fallout
x86: Use generic time config
unicore32: Use generic time config
um: Use generic time config
tile: Use generic time config
sparc: Use: generic time config
sh: Use generic time config
score: Use generic time config
s390: Use generic time config
openrisc: Use generic time config
powerpc: Use generic time config
mn10300: Use generic time config
mips: Use generic time config
microblaze: Use generic time config
m68k: Use generic time config
m32r: Use generic time config
...
To use this, an architecture simply needs to:
1) Provide a user_addr_max() implementation via asm/uaccess.h
2) Add "select GENERIC_STRNCPY_FROM_USER" to their arch Kcnfig
3) Remove the existing strncpy_from_user() implementation and symbol
exports their architecture had.
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: David Howells <dhowells@redhat.com>
Hide details of maximum user address calculation in a new
asm/uaccess.h interface named user_addr_max().
Provide little-endian implementation in find_zero(), which should work
but can probably be improved.
Abstrace alignment check behind IS_UNALIGNED() macro.
Kill double-semicolon, noticed by David Howells.
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull main drm updates from Dave Airlie:
"This is the main merge window request for the drm.
It's big, but jam packed will lots of features and of course 0
regressions. (okay maybe there'll be one).
Highlights:
- new KMS drivers for server GPU chipsets: ast, mgag200 and cirrus
(qemu only). These drivers use the generic modesetting drivers.
- initial prime/dma-buf support for i915, nouveau, radeon, udl and
exynos
- switcheroo audio support: so GPUs with HDMI can turn off the sound
driver without crashing stuff.
- There are some patches drifting outside drivers/gpu into x86 and
EFI for better handling of multiple video adapters in Apple Macs,
they've got correct acks except one trivial fixup.
- Core:
edid parser has better DMT and reduced blanking support,
crtc properties,
plane properties,
- Drivers:
exynos: add 2D core accel support, prime support, hdmi features
intel: more Haswell support, initial Valleyview support, more
hdmi infoframe fixes, update MAINTAINERS for Daniel, lots of
cleanups and fixes
radeon: more HDMI audio support, improved GPU lockup recovery
support, remove nested mutexes, less memory copying on PCIE, fix
bus master enable race (kexec), improved fence handling
gma500: cleanups, 1080p support, acpi fixes
nouveau: better nva3 memory reclocking, kepler accel (needs
external firmware rip), async buffer moves on nv84+ hw.
I've some more dma-buf patches that rely on the dma-buf merge for vmap
stuff, and I've a few fixes building up, but I'd decided I'd better
get rid of the main pull sooner rather than later, so the audio guys
are also unblocked."
Fix up trivial conflict due to some duplicated changes in
drivers/gpu/drm/i915/intel_ringbuffer.c
* 'drm-core-next' of git://people.freedesktop.org/~airlied/linux: (605 commits)
drm/nouveau/nvd9: Fix GPIO initialisation sequence.
drm/nouveau: Unregister switcheroo client on exit
drm/nouveau: Check dsm on switcheroo unregister
drm/nouveau: fix a minor annoyance in an output string
drm/nouveau: turn a BUG into a WARN
drm/nv50: decode PGRAPH DATA_ERROR = 0x24
drm/nouveau/disp: fix dithering not being enabled on some eDP macbooks
drm/nvd9/copy: initialise copy engine, seems to work like nvc0
drm/nvc0/ttm: use copy engines for async buffer moves
drm/nva3/ttm: use copy engine for async buffer moves
drm/nv98/ttm: add in a (disabled) crypto engine buffer copy method
drm/nv84/ttm: use crypto engine for async buffer copies
drm/nouveau/ttm: untangle code to support accelerated buffer moves
drm/nouveau/fbcon: use fence for sync, rather than notifier
drm/nv98/crypt: non-stub implementation of the engine hooks
drm/nouveau/fifo: turn all fifo modules into engine modules
drm/nv50/graph: remove ability to do interrupt-driven context switching
drm/nv50: remove manual context unload on context destruction
drm/nv50: remove execution engine context saves on suspend
drm/nv50/fifo: use hardware channel kickoff functionality
...
Pull more networking updates from David Miller:
"Ok, everything from here on out will be bug fixes."
1) One final sync of wireless and bluetooth stuff from John Linville.
These changes have all been in his tree for more than a week, and
therefore have had the necessary -next exposure. John was just away
on a trip and didn't have a change to send the pull request until a
day or two ago.
2) Put back some defines in user exposed header file areas that were
removed during the tokenring purge. From Stephen Hemminger and Paul
Gortmaker.
3) A bug fix for UDP hash table allocation got lost in the pile due to
one of those "you got it.. no I've got it.." situations. :-)
From Tim Bird.
4) SKB coalescing in TCP needs to have stricter checks, otherwise we'll
try to coalesce overlapping frags and crash. Fix from Eric Dumazet.
5) RCU routing table lookups can race with free_fib_info(), causing
crashes when we deref the device pointers in the route. Fix by
releasing the net device in the RCU callback. From Yanmin Zhang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (293 commits)
tcp: take care of overlaps in tcp_try_coalesce()
ipv4: fix the rcu race between free_fib_info and ip_route_output_slow
mm: add a low limit to alloc_large_system_hash
ipx: restore token ring define to include/linux/ipx.h
if: restore token ring ARP type to header
xen: do not disable netfront in dom0
phy/micrel: Fix ID of KSZ9021
mISDN: Add X-Tensions USB ISDN TA XC-525
gianfar:don't add FCB length to hard_header_len
Bluetooth: Report proper error number in disconnection
Bluetooth: Create flags for bt_sk()
Bluetooth: report the right security level in getsockopt
Bluetooth: Lock the L2CAP channel when sending
Bluetooth: Restore locking semantics when looking up L2CAP channels
Bluetooth: Fix a redundant and problematic incoming MTU check
Bluetooth: Add support for Foxconn/Hon Hai AR5BBU22 0489:E03C
Bluetooth: Fix EIR data generation for mgmt_device_found
Bluetooth: Fix Inquiry with RSSI event mask
Bluetooth: improve readability of l2cap_seq_list code
Bluetooth: Fix skb length calculation
...
Pull user-space probe instrumentation from Ingo Molnar:
"The uprobes code originates from SystemTap and has been used for years
in Fedora and RHEL kernels. This version is much rewritten, reviews
from PeterZ, Oleg and myself shaped the end result.
This tree includes uprobes support in 'perf probe' - but SystemTap
(and other tools) can take advantage of user probe points as well.
Sample usage of uprobes via perf, for example to profile malloc()
calls without modifying user-space binaries.
First boot a new kernel with CONFIG_UPROBE_EVENT=y enabled.
If you don't know which function you want to probe you can pick one
from 'perf top' or can get a list all functions that can be probed
within libc (binaries can be specified as well):
$ perf probe -F -x /lib/libc.so.6
To probe libc's malloc():
$ perf probe -x /lib64/libc.so.6 malloc
Added new event:
probe_libc:malloc (on 0x7eac0)
You can now use it in all perf tools, such as:
perf record -e probe_libc:malloc -aR sleep 1
Make use of it to create a call graph (as the flat profile is going to
look very boring):
$ perf record -e probe_libc:malloc -gR make
[ perf record: Woken up 173 times to write data ]
[ perf record: Captured and wrote 44.190 MB perf.data (~1930712
$ perf report | less
32.03% git libc-2.15.so [.] malloc
|
--- malloc
29.49% cc1 libc-2.15.so [.] malloc
|
--- malloc
|
|--0.95%-- 0x208eb1000000000
|
|--0.63%-- htab_traverse_noresize
11.04% as libc-2.15.so [.] malloc
|
--- malloc
|
7.15% ld libc-2.15.so [.] malloc
|
--- malloc
|
5.07% sh libc-2.15.so [.] malloc
|
--- malloc
|
4.99% python-config libc-2.15.so [.] malloc
|
--- malloc
|
4.54% make libc-2.15.so [.] malloc
|
--- malloc
|
|--7.34%-- glob
| |
| |--93.18%-- 0x41588f
| |
| --6.82%-- glob
| 0x41588f
...
Or:
$ perf report -g flat | less
# Overhead Command Shared Object Symbol
# ........ ............. ............. ..........
#
32.03% git libc-2.15.so [.] malloc
27.19%
malloc
29.49% cc1 libc-2.15.so [.] malloc
24.77%
malloc
11.04% as libc-2.15.so [.] malloc
11.02%
malloc
7.15% ld libc-2.15.so [.] malloc
6.57%
malloc
...
The core uprobes design is fairly straightforward: uprobes probe
points register themselves at (inode:offset) addresses of
libraries/binaries, after which all existing (or new) vmas that map
that address will have a software breakpoint injected at that address.
vmas are COW-ed to preserve original content. The probe points are
kept in an rbtree.
If user-space executes the probed inode:offset instruction address
then an event is generated which can be recovered from the regular
perf event channels and mmap-ed ring-buffer.
Multiple probes at the same address are supported, they create a
dynamic callback list of event consumers.
The basic model is further complicated by the XOL speedup: the
original instruction that is probed is copied (in an architecture
specific fashion) and executed out of line when the probe triggers.
The XOL area is a single vma per process, with a fixed number of
entries (which limits probe execution parallelism).
The API: uprobes are installed/removed via
/sys/kernel/debug/tracing/uprobe_events, the API is integrated to
align with the kprobes interface as much as possible, but is separate
to it.
Injecting a probe point is privileged operation, which can be relaxed
by setting perf_paranoid to -1.
You can use multiple probes as well and mix them with kprobes and
regular PMU events or tracepoints, when instrumenting a task."
Fix up trivial conflicts in mm/memory.c due to previous cleanup of
unmap_single_vma().
* 'perf-uprobes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
perf probe: Detect probe target when m/x options are absent
perf probe: Provide perf interface for uprobes
tracing: Fix kconfig warning due to a typo
tracing: Provide trace events interface for uprobes
tracing: Extract out common code for kprobes/uprobes trace events
tracing: Modify is_delete, is_return from int to bool
uprobes/core: Decrement uprobe count before the pages are unmapped
uprobes/core: Make background page replacement logic account for rss_stat counters
uprobes/core: Optimize probe hits with the help of a counter
uprobes/core: Allocate XOL slots for uprobes use
uprobes/core: Handle breakpoint and singlestep exceptions
uprobes/core: Rename bkpt to swbp
uprobes/core: Make order of function parameters consistent across functions
uprobes/core: Make macro names consistent
uprobes: Update copyright notices
uprobes/core: Move insn to arch specific structure
uprobes/core: Remove uprobe_opcode_sz
uprobes/core: Make instruction tables volatile
uprobes: Move to kernel/events/
uprobes/core: Clean up, refactor and improve the code
...
These functions are used in some PCI drivers with big-endian
MMIO space.
Admittedly it is almost certain that no one this side of the
Moon would use such a card in an Alpha but it does get us
closer to being able to build allyesconfig or allmodconfig,
and it enables the Debian default generic config to build.
Tested-by: Raúl Porcel <armin76@gentoo.org>
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Matt Turner <mattst88@gmail.com>
This implements OSF/1 versions of stat, lstat, fstat, statfs64,
and fstatfs64 syscalls.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
This allows running software using the Tru64 license manager.
For simplicity, no check for a valid license is done. This
should not be seen as encouraging software piracy.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
Pull media updates from Mauro Carvalho Chehab:
- some V4L2 API updates needed by embedded devices
- DVB API extensions for ATSC-MH delivery system, used in US for mobile
TV
- new tuners for fc0011/0012/0013 and tua9001
- a new dvb driver for af9033/9035
- a new ATSC-MH frontend (lg2160)
- new remote controller keymaps
- Removal of a few legacy webcam driver that got replaced by gspca on
several kernel versions ago
- a new driver for Exynos 4/5 webcams(s5pp fimc-lite)
- a new webcam sensor driver (smiapp)
- a new video input driver for embedded (sta2x1xx)
- several improvements, fixes, cleanups, etc inside the drivers.
Manually fix up conflicts due to err() -> dev_err() conversion in
drivers/staging/media/easycap/easycap_main.c
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (484 commits)
[media] saa7134-cards: Remove a PCI entry added by mistake
[media] radio-sf16fmi: add support for SF16-FMD
[media] rc-loopback: remove duplicate line
[media] patch for Asus My Cinema PS3-100 (1043:48cd)
[media] au0828: Move the Kconfig knob under V4L_USB_DRIVERS
[media] em28xx: simple comment fix
[media] [resend] radio-sf16fmr2: add PnP support for SF16-FMD2
[media] smiapp: Use v4l2_ctrl_new_int_menu() instead of v4l2_ctrl_new_custom()
[media] smiapp: Add support for 8-bit uncompressed formats
[media] smiapp: Allow generic quirk registers
[media] smiapp: Use non-binning limits if the binning limit is zero
[media] smiapp: Initialise rval in smiapp_read_nvm()
[media] smiapp: Round minimum pre_pll up rather than down in ip_clk_freq check
[media] smiapp: Use 8-bit reads only before identifying the sensor
[media] smiapp: Quirk for sensors that only do 8-bit reads
[media] smiapp: Pass struct sensor to register writing commands instead of i2c_client
[media] smiapp: Allow using external clock from the clock framework
[media] zl10353: change .read_snr() to report SNR as a 0.1 dB
[media] media: add support to gspca/pac7302.c for 093a:2627 (Genius FaceCam 300)
[media] m88rs2000 - only flip bit 2 on reg 0x70 on 16th try
...
The symbol jiffies is created in the linker script as an alias to
jiffies_64. Unfortunately this is done outside any section, and
apparently GNU ld 2.21 doesn't carry the section with it, so we end up
with an absolute symbol and therefore a broken kernel.
Add jiffies and jiffies_64 to the whitelist.
The most disturbing bit with this discovery is that it shows that we
have had multiple linker bugs in this area crossing multiple
generations, and have been silently building bad kernels for some time.
Link: http://lkml.kernel.org/r/20120524171604.0d98284f3affc643e9714470@canb.auug.org.au
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: <stable@vger.kernel.org> v3.4
Compute a mask that will only have 0x80 in the bytes which
had a zero in them. The formula is:
~(((x & 0x7f7f7f7f) + 0x7f7f7f7f) | x | 0x7f7f7f7f)
In the inner word iteration, we have to compute the "x | 0x7f7f7f7f"
part, so we can reuse that in the above calculation.
Once we have this mask, we perform divide and conquer to find the
highest 0x80 location.
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull first series of signal handling cleanups from Al Viro:
"This is just the first part of the queue (about a half of it);
assorted fixes all over the place in signal handling.
This one ends with all sigsuspend() implementations switched to
generic one (->saved_sigmask-based).
With this, a bunch of assorted old buglets are fixed and most of the
missing bits of NOTIFY_RESUME hookup are in place. Two more fixes sit
in arm and um trees respectively, and there's a couple of broken ones
that need obvious fixes - parisc and avr32 check TIF_NOTIFY_RESUME
only on one of two codepaths; fixes for that will happen in the next
series"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: (55 commits)
unicore32: if there's no handler we need to restore sigmask, syscall or no syscall
xtensa: add handling of TIF_NOTIFY_RESUME
microblaze: drop 'oldset' argument of do_notify_resume()
microblaze: handle TIF_NOTIFY_RESUME
score: add handling of NOTIFY_RESUME to do_notify_resume()
m68k: add TIF_NOTIFY_RESUME and handle it.
sparc: kill ancient comment in sparc_sigaction()
h8300: missing checks of __get_user()/__put_user() return values
frv: missing checks of __get_user()/__put_user() return values
cris: missing checks of __get_user()/__put_user() return values
powerpc: missing checks of __get_user()/__put_user() return values
sh: missing checks of __get_user()/__put_user() return values
sparc: missing checks of __get_user()/__put_user() return values
avr32: struct old_sigaction is never used
m32r: struct old_sigaction is never used
xtensa: xtensa_sigaction doesn't exist
alpha: tidy signal delivery up
score: don't open-code force_sigsegv()
cris: don't open-code force_sigsegv()
blackfin: don't open-code force_sigsegv()
...
Pull user namespace enhancements from Eric Biederman:
"This is a course correction for the user namespace, so that we can
reach an inexpensive, maintainable, and reasonably complete
implementation.
Highlights:
- Config guards make it impossible to enable the user namespace and
code that has not been converted to be user namespace safe.
- Use of the new kuid_t type ensures the if you somehow get past the
config guards the kernel will encounter type errors if you enable
user namespaces and attempt to compile in code whose permission
checks have not been updated to be user namespace safe.
- All uids from child user namespaces are mapped into the initial
user namespace before they are processed. Removing the need to add
an additional check to see if the user namespace of the compared
uids remains the same.
- With the user namespaces compiled out the performance is as good or
better than it is today.
- For most operations absolutely nothing changes performance or
operationally with the user namespace enabled.
- The worst case performance I could come up with was timing 1
billion cache cold stat operations with the user namespace code
enabled. This went from 156s to 164s on my laptop (or 156ns to
164ns per stat operation).
- (uid_t)-1 and (gid_t)-1 are reserved as an internal error value.
Most uid/gid setting system calls treat these value specially
anyway so attempting to use -1 as a uid would likely cause
entertaining failures in userspace.
- If setuid is called with a uid that can not be mapped setuid fails.
I have looked at sendmail, login, ssh and every other program I
could think of that would call setuid and they all check for and
handle the case where setuid fails.
- If stat or a similar system call is called from a context in which
we can not map a uid we lie and return overflowuid. The LFS
experience suggests not lying and returning an error code might be
better, but the historical precedent with uids is different and I
can not think of anything that would break by lying about a uid we
can't map.
- Capabilities are localized to the current user namespace making it
safe to give the initial user in a user namespace all capabilities.
My git tree covers all of the modifications needed to convert the core
kernel and enough changes to make a system bootable to runlevel 1."
Fix up trivial conflicts due to nearby independent changes in fs/stat.c
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (46 commits)
userns: Silence silly gcc warning.
cred: use correct cred accessor with regards to rcu read lock
userns: Convert the move_pages, and migrate_pages permission checks to use uid_eq
userns: Convert cgroup permission checks to use uid_eq
userns: Convert tmpfs to use kuid and kgid where appropriate
userns: Convert sysfs to use kgid/kuid where appropriate
userns: Convert sysctl permission checks to use kuid and kgids.
userns: Convert proc to use kuid/kgid where appropriate
userns: Convert ext4 to user kuid/kgid where appropriate
userns: Convert ext3 to use kuid/kgid where appropriate
userns: Convert ext2 to use kuid/kgid where appropriate.
userns: Convert devpts to use kuid/kgid where appropriate
userns: Convert binary formats to use kuid/kgid where appropriate
userns: Add negative depends on entries to avoid building code that is userns unsafe
userns: signal remove unnecessary map_cred_ns
userns: Teach inode_capable to understand inodes whose uids map to other namespaces.
userns: Fail exec for suid and sgid binaries with ids outside our user namespace.
userns: Convert stat to return values mapped from kuids and kgids
userns: Convert user specfied uids and gids in chown into kuids and kgid
userns: Use uid_eq gid_eq helpers when comparing kuids and kgids in the vfs
...
Pull the MCA deletion branch from Paul Gortmaker:
"It was good that we could support MCA machines back in the day, but
realistically, nobody is using them anymore. They were mostly limited
to 386-sx 16MHz CPU and some 486 class machines and never more than
64MB of RAM. Even the enthusiast hobbyist community seems to have
dried up close to ten years ago, based on what you can find searching
various websites dedicated to the relatively short lived hardware.
So lets remove the support relating to CONFIG_MCA. There is no point
carrying this forward, wasting cycles doing routine maintenance on it;
wasting allyesconfig build time on validating it, wasting I/O on git
grep'ping over it, and so on."
Let's see if anybody screams. It generally has compiled, and James
Bottomley pointed out that there was a MCA extension from NCR that
allowed for up to 4GB of memory and PPro-class machines. So in *theory*
there may be users out there.
But even James (technically listed as a maintainer) doesn't actually
have a system, and while Alan Cox claims to have a machine in his cellar
that he offered to anybody who wants to take it off his hands, he didn't
argue for keeping MCA support either.
So we could bring it back. But somebody had better speak up and talk
about how they have actually been using said MCA hardware with modern
kernels for us to do that. And David already took the patch to delete
all the networking driver code (commit a5e371f61ad3: "drivers/net:
delete all code/drivers depending on CONFIG_MCA").
* 'delete-mca' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
MCA: delete all remaining traces of microchannel bus support.
scsi: delete the MCA specific drivers and driver code
serial: delete the MCA specific 8250 support.
arm: remove ability to select CONFIG_MCA
Main features:
- RAID10 arrays can be reshapes - adding and removing devices and
changing chunks (not 'far' array though)
- allow RAID5 arrays to be reshaped with a backup file (not tested
yet, but the priciple works fine for RAID10).
- arrays can be reshaped while a bitmap is present - you no longer
need to remove it first
- SSSE3 support for RAID6 syndrome calculations
and of course a number of minor fixes etc.
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Merge tag 'md-3.5' of git://neil.brown.name/md
Pull md updates from NeilBrown:
"It's been a busy cycle for md - lots of fun stuff here.. if you like
this kind of thing :-)
Main features:
- RAID10 arrays can be reshaped - adding and removing devices and
changing chunks (not 'far' array though)
- allow RAID5 arrays to be reshaped with a backup file (not tested
yet, but the priciple works fine for RAID10).
- arrays can be reshaped while a bitmap is present - you no longer
need to remove it first
- SSSE3 support for RAID6 syndrome calculations
and of course a number of minor fixes etc."
* tag 'md-3.5' of git://neil.brown.name/md: (56 commits)
md/bitmap: record the space available for the bitmap in the superblock.
md/raid10: Remove extras after reshape to smaller number of devices.
md/raid5: improve removal of extra devices after reshape.
md: check the return of mddev_find()
MD RAID1: Further conditionalize 'fullsync'
DM RAID: Use md_error() in place of simply setting Faulty bit
DM RAID: Record and handle missing devices
DM RAID: Set recovery flags on resume
md/raid5: Allow reshape while a bitmap is present.
md/raid10: resize bitmap when required during reshape.
md: allow array to be resized while bitmap is present.
md/bitmap: make sure reshape request are reflected in superblock.
md/bitmap: add bitmap_resize function to allow bitmap resizing.
md/bitmap: use DIV_ROUND_UP instead of open-code
md/bitmap: create a 'struct bitmap_counts' substructure of 'struct bitmap'
md/bitmap: make bitmap bitops atomic.
md/bitmap: make _page_attr bitops atomic.
md/bitmap: merge bitmap_file_unmap and bitmap_file_put.
md/bitmap: remove async freeing of bitmap file.
md/bitmap: convert some spin_lock_irqsave to spin_lock_irq
...
Pull crypto updates from Herbert Xu:
- New cipher/hash driver for ARM ux500.
- Code clean-up for aesni-intel.
- Misc fixes.
Fixed up conflicts in arch/arm/mach-ux500/devices-common.h, where quite
frankly some of it made no sense at all (the pull brought in a
declaration for the dbx500_add_platform_device_noirq() function, which
neither exists nor is used anywhere).
Also some trivial add-add context conflicts in the Kconfig file in
drivers/{char/hw_random,crypto}/
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: aesni-intel - move more common code to ablk_init_common
crypto: aesni-intel - use crypto_[un]register_algs
crypto: ux500 - Cleanup hardware identification
crypto: ux500 - Update DMA handling for 3.4
mach-ux500: crypto - core support for CRYP/HASH module.
crypto: ux500 - Add driver for HASH hardware
crypto: ux500 - Add driver for CRYP hardware
hwrng: Kconfig - modify default state for atmel-rng driver
hwrng: omap - use devm_request_and_ioremap
crypto: crypto4xx - move up err_request_irq label
crypto, xor: Sanitize checksumming function selection output
crypto: caam - add backward compatible string sec4.0
Instruction recovery cases are very similar to the data recovery one
we already have. Just trade out for a new MCACOD value.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Linus pointed out that there was no value is checking whether m->ip
was zero - because zero is a legimate value. If we have a reliable
(or faked in the VM86 case) "m->cs" we can use it to tell whether we
were in user mode or kernelwhen the machine check hit.
Reported-by: Linus Torvalds <torvalds@linuxfoundation.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
When running on 32bit the mce handler could misinterpret
vm86 mode as ring 0. This can affect whether it does recovery
or not; it was possible to panic when recovery was actually
possible.
Fix this by always forcing vm86 to look like ring 3.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
As noted in checkin:
a3e854d95 x86, relocs: Workaround for binutils 2.22.52.0.1 section bug
ld version 2.22.52.0.[12] can incorrectly promote relative symbols to
absolute, if the output section they appear in is otherwise empty.
Since checkin:
6520fe55 x86, realmode: 16-bit real-mode code support for relocs tool
we actually check for this and error out rather than silently creating
a kernel which will malfunction if relocated.
Ingo found a configuration in which __start_builtin_fw triggered the
warning.
Go through the linker script sources and look for more symbols that
could plausibly get bogusly promoted to absolute, and add them to the
whitelist.
In general, if the following error triggers:
Invalid absolute R_386_32 relocation: <symbol>
... then we should verify that <symbol> is really meant to be
relocated, and add it and any related symbols manually to the S_REL
regexp.
Please note that 6520fe55 does not introduce the error, only the check
for the error -- without 6520fe55 this version of ld will simply
produce a corrupt kernel if CONFIG_RELOCATABLE is set on x86-32.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: <stable@vger.kernel.org> v3.4
This is the first big chunk for 3.5 merges of sound stuff.
There are a few big changes in different areas. First off, the
streaming logic of USB-audio endpoints has been largely rewritten
for the better support of "implicit feedback". If anything about USB
got broken, this change has to be checked.
For HD-audio, the resume procedure was changed; instead of delaying
the resume of the hardware until the first use, now waking up immediately
at resume. This is for buggy BIOS.
For ASoC, dynamic PCM support and the improved support for digital links
between off-SoC devices are major framework changes.
Some highlights are below:
* HD-audio
- Avoid the accesses of invalid pin-control bits that may stall the codec
- V-ref setup cleanups
- Fix the races in power-saving code
- Fix the races in codec cache hashes and connection lists
- Split some common codes for BIOS auto-parser to hda_auto_parser.c
- Changed the PM resume code to wake up immediately for buggy BIOS
- Creative SoundCore3D support
- Add Conexant CX20751/2/3/4 codec support
* ASoC
- Dynamic PCM support, allowing support for SoCs with internal routing
through components with tight sequencing and formatting constraints
within their internal paths or where there are multiple components
connected with CPU managed DMA controllers inside the SoC.
- Greatly improved support for direct digital links between off-SoC
devices, providing a much simpler way of connecting things like digital
basebands to CODECs.
- Much more fine grained and robust locking, cleaning up some of the
confusion that crept in with multi-component.
- CPU support for nVidia Tegra 30 I2S and audio hub controllers and
ST-Ericsson MSP I2S controolers
- New CODEC drivers for Cirrus CS42L52, LAPIS Semiconductor ML26124, Texas
Instruments LM49453.
- Some regmap changes needed by the Tegra I2S driver.
- mc13783 audio support.
* Misc
- Rewrite with module_pci_driver()
- Xonar DGX support for snd-oxygen
- Improvement of packet handling in snd-firewire driver
- New USB-endpoint streaming logic
- Enhanced M-audio FTU quirks and relevant cleanups
- Increment the support of OSS devices to 256
- snd-aloop accuracy improvement
There are a few more pending changes for 3.5, but they will be
sent slightly later as partly depending on the changes of DRM.
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Merge tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"This is the first big chunk for 3.5 merges of sound stuff.
There are a few big changes in different areas. First off, the
streaming logic of USB-audio endpoints has been largely rewritten for
the better support of "implicit feedback". If anything about USB got
broken, this change has to be checked.
For HD-audio, the resume procedure was changed; instead of delaying
the resume of the hardware until the first use, now waking up
immediately at resume. This is for buggy BIOS.
For ASoC, dynamic PCM support and the improved support for digital
links between off-SoC devices are major framework changes.
Some highlights are below:
* HD-audio
- Avoid accesses of invalid pin-control bits that may stall the codec
- V-ref setup cleanups
- Fix the races in power-saving code
- Fix the races in codec cache hashes and connection lists
- Split some common codes for BIOS auto-parser to hda_auto_parser.c
- Changed the PM resume code to wake up immediately for buggy BIOS
- Creative SoundCore3D support
- Add Conexant CX20751/2/3/4 codec support
* ASoC
- Dynamic PCM support, allowing support for SoCs with internal
routing through components with tight sequencing and formatting
constraints within their internal paths or where there are multiple
components connected with CPU managed DMA controllers inside the
SoC.
- Greatly improved support for direct digital links between off-SoC
devices, providing a much simpler way of connecting things like
digital basebands to CODECs.
- Much more fine grained and robust locking, cleaning up some of the
confusion that crept in with multi-component.
- CPU support for nVidia Tegra 30 I2S and audio hub controllers and
ST-Ericsson MSP I2S controolers
- New CODEC drivers for Cirrus CS42L52, LAPIS Semiconductor ML26124,
Texas Instruments LM49453.
- Some regmap changes needed by the Tegra I2S driver.
- mc13783 audio support.
* Misc
- Rewrite with module_pci_driver()
- Xonar DGX support for snd-oxygen
- Improvement of packet handling in snd-firewire driver
- New USB-endpoint streaming logic
- Enhanced M-audio FTU quirks and relevant cleanups
- Increment the support of OSS devices to 256
- snd-aloop accuracy improvement
There are a few more pending changes for 3.5, but they will be sent
slightly later as partly depending on the changes of DRM."
Fix up conflicts in regmap (due to duplicate patches, with some further
updates then having already come in from the regmap tree). Also some
fairly trivial context conflicts in the imx and mcx soc drivers.
* tag 'sound-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (280 commits)
ALSA: snd-usb: fix stream info output in /proc
ALSA: pcm - Add proper state checks to snd_pcm_drain()
ALSA: sh: Fix up namespace collision in sh_dac_audio.
ALSA: hda/realtek - Fix unused variable compile warning
ASoC: sh: fsi: enable chip specific data transfer mode
ASoC: sh: fsi: call fsi_hw_startup/shutdown from fsi_dai_trigger()
ASoC: sh: fsi: use same format for IN/OUT
ASoC: sh: fsi: add fsi_version() and removed meaningless version check
ASoC: sh: fsi: use register field macro name on IN/OUT_DMAC
ASoC: tegra: Add machine driver for WM8753 codec
ALSA: hda - Fix possible races of accesses to connection list array
ASoC: OMAP: HDMI: Introduce codec
ARM: mx31_3ds: Add sound support
ASoC: imx-mc13783 cleanup
mx31moboard: Add sound support
ASoC: mc13783 codec cleanups
ASoC: add imx-mc13783 sound support
ASoC: Add mc13783 codec
mfd: mc13xxx: add codec platform data
ASoC: don't flip master of DT-instantiated DAI links
...
Pull perf fixes from Ingo Molnar:
- Leftover AMD PMU driver fix fix from the end of the v3.4
stabilization cycle.
- Late tools/perf/ changes that missed the first round:
* endianness fixes
* event parsing improvements
* libtraceevent fixes factored out from trace-cmd
* perl scripting engine fixes related to libtraceevent,
* testcase improvements
* perf inject / pipe mode fixes
* plus a kernel side fix
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86: Update event scheduling constraints for AMD family 15h models
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "sched, perf: Use a single callback into the scheduler"
perf evlist: Show event attribute details
perf tools: Bump default sample freq to 4 kHz
perf buildid-list: Work better with pipe mode
perf tools: Fix piped mode read code
perf inject: Fix broken perf inject -b
perf tools: rename HEADER_TRACE_INFO to HEADER_TRACING_DATA
perf tools: Add union u64_swap type for swapping u64 data
perf tools: Carry perf_event_attr bitfield throught different endians
perf record: Fix documentation for branch stack sampling
perf target: Add cpu flag to sample_type if target has cpu
perf tools: Always try to build libtraceevent
perf tools: Rename libparsevent to libtraceevent in Makefile
perf script: Rename struct event to struct event_format in perl engine
perf script: Explicitly handle known default print arg type
perf tools: Add hardcoded name term for pmu events
perf tools: Separate 'mem:' event scanner bits
perf tools: Use allocated list for each parsed event
perf tools: Add support for displaying event parser debug info
perf test: Move parse event automated tests to separated object
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Merge tag 'ia64-3.5-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
Pull Itanium fixes from Tony Luck.
* tag 'ia64-3.5-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
[IA64] Liberate the signal layer from IA64 assembler
[IA64] Add cmpxchg.h to exported userspace headers
[IA64] Fix fast syscall version of getcpu()
[IA64] Removed "task_size" element from thread_struct - it is now constant
Pull x86 reboot changes from Ingo Molnar:
"The biggest change is a gentler method of rebooting/stopping via IRQs
first and then via NMIs. There are several cleanups in the tree as
well."
* 'x86-reboot-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/reboot: Update nonmi_ipi parameter
x86/reboot: Use NMI to assist in shutting down if IRQ fails
Revert "x86, reboot: Use NMI instead of REBOOT_VECTOR to stop cpus"
x86/reboot: Clean up coding style
x86/reboot: Reduce to a single DMI table for reboot quirks
Pull x86 platform changes from Ingo Molnar:
"This tree includes assorted platform driver updates and a preparatory
series for a platform with custom DMA remapping semantics (sta2x11 I/O
hub)."
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/vsmp: Fix number of CPUs when vsmp is disabled
keyboard: Use BIOS Keyboard variable to set Numlock
x86/olpc/xo1/sci: Report RTC wakeup events
x86/olpc/xo1/sci: Produce wakeup events for buttons and switches
x86, platform: Initial support for sta2x11 I/O hub
x86: Introduce CONFIG_X86_DMA_REMAP
x86-32: Introduce CONFIG_X86_DEV_DMA_OPS
Pull x86 mm changes from Ingo Molnar:
"This tree includes a micro-optimization that avoids cr3 switches
during idling; it fixes corner cases and there's also small cleanups"
Fix up trivial context conflict with the percpu_xx -> this_cpu_xx
changes.
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86-64: Fix accounting in kernel_physical_mapping_init()
x86/tlb: Clean up and unify TLB_FLUSH_ALL definition
x86: Drop obsolete ARCH_BOOTMEM support
x86, tlb: Switch cr3 in leave_mm() only when needed
x86/mm: Fix the size calculation of mapping tables
Pull MCE updates from Ingo Molnar:
"This tree updates/fixes MCE hardware support, it makes the APIC LVT
thresholding interrupt optional because a subset of AMD F15h models
don't support it."
* 'x86-mce-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, MCE, AMD: Disable error thresholding bank 4 on some models
x86, MCE, AMD: Hide interrupt_enable sysfs node
x86, MCE, AMD: Make APIC LVT thresholding interrupt optional
Pull fpu state cleanups from Ingo Molnar:
"This tree streamlines further aspects of FPU handling by eliminating
the prepare_to_copy() complication and moving that logic to
arch_dup_task_struct().
It also fixes the FPU dumps in threaded core dumps, removes and old
(and now invalid) assumption plus micro-optimizes the exit path by
avoiding an FPU save for dead tasks."
Fixed up trivial add-add conflict in arch/sh/kernel/process.c that came
in because we now do the FPU handling in arch_dup_task_struct() rather
than the legacy (and now gone) prepare_to_copy().
* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, fpu: drop the fpu state during thread exit
x86, xsave: remove thread_has_fpu() bug check in __sanitize_i387_state()
coredump: ensure the fpu state is flushed for proper multi-threaded core dump
fork: move the real prepare_to_copy() users to arch_dup_task_struct()
Pull exception table generation updates from Ingo Molnar:
"The biggest change here is to allow the build-time sorting of the
exception table, to speed up booting. This is achieved by the
architecture enabling BUILDTIME_EXTABLE_SORT. This option is enabled
for x86 and MIPS currently.
On x86 a number of fixes and changes were needed to allow build-time
sorting of the exception table, in particular a relocation invariant
exception table format was needed. This required the abstracting out
of exception table protocol and the removal of 20 years of accumulated
assumptions about the x86 exception table format.
While at it, this tree also cleans up various other aspects of
exception handling, such as early(er) exception handling for
rdmsr_safe() et al.
All in one, as the result of these changes the x86 exception code is
now pretty nice and modern. As an added bonus any regressions in this
code will be early and violent crashes, so if you see any of those,
you'll know whom to blame!"
Fix up trivial conflicts in arch/{mips,x86}/Kconfig files due to nearby
modifications of other core architecture options.
* 'x86-extable-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (35 commits)
Revert "x86, extable: Disable presorted exception table for now"
scripts/sortextable: Handle relative entries, and other cleanups
x86, extable: Switch to relative exception table entries
x86, extable: Disable presorted exception table for now
x86, extable: Add _ASM_EXTABLE_EX() macro
x86, extable: Remove open-coded exception table entries in arch/x86/ia32/ia32entry.S
x86, extable: Remove open-coded exception table entries in arch/x86/include/asm/xsave.h
x86, extable: Remove open-coded exception table entries in arch/x86/include/asm/kvm_host.h
x86, extable: Remove the now-unused __ASM_EX_SEC macros
x86, extable: Remove open-coded exception table entries in arch/x86/xen/xen-asm_32.S
x86, extable: Remove open-coded exception table entries in arch/x86/um/checksum_32.S
x86, extable: Remove open-coded exception table entries in arch/x86/lib/usercopy_32.c
x86, extable: Remove open-coded exception table entries in arch/x86/lib/putuser.S
x86, extable: Remove open-coded exception table entries in arch/x86/lib/getuser.S
x86, extable: Remove open-coded exception table entries in arch/x86/lib/csum-copy_64.S
x86, extable: Remove open-coded exception table entries in arch/x86/lib/copy_user_nocache_64.S
x86, extable: Remove open-coded exception table entries in arch/x86/lib/copy_user_64.S
x86, extable: Remove open-coded exception table entries in arch/x86/lib/checksum_32.S
x86, extable: Remove open-coded exception table entries in arch/x86/kernel/test_rodata.c
x86, extable: Remove open-coded exception table entries in arch/x86/kernel/entry_64.S
...
Pull x86 EFI updates from Ingo Molnar:
"This patchset makes changes to the bzImage EFI header, so that it can
be signed with a secure boot signature tool. It should not affect
anyone who is not using the EFI self-boot feature in any way."
* 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, efi: Fix NumberOfRvaAndSizes field in PE32 header for EFI_STUB
x86, efi: Fix .text section overlapping image header for EFI_STUB
x86, efi: Fix issue of overlapping .reloc section for EFI_STUB
Pull x86/urgent branch from Ingo Molnar:
"These are the fixes left over from the very end of the v3.4
stabilization cycle, plus one more fix."
Ugh. Those KERN_CONT additions are just pointless. I think they came
as a reaction to some of the early (broken) printk() work - but that was
fixed before it was merged.
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, relocs: Build clean fix
x86, printk: Add missing KERN_CONT to NMI selftest
x86: Fix boot on Twinhead H12Y
Pull Hexagon architecture changes from Richard Kuo:
"These are mostly cleanups and feedback remaining from the original
upstreaming."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rkuo/linux-hexagon-kernel:
various Kconfig cleanup and old platform build code removal
hexagon/mm/vm_fault.c: Port OOM changes to do_page_fault
arch/hexagon/kernel/dma.c: make function static
Remove unneeded include of version.h from arch/hexagon/include/asm/spinlock_types.h
Hexagon: Use resource_size function
Pull powerpc updates from Benjamin Herrenschmidt:
"Here are the powerpc goodies for 3.5. Main highlights are:
- Support for the NX crypto engine in Power7+
- A bunch of Anton goodness, including some micro optimization of our
syscall entry on Power7
- I converted a pile of our thermal control drivers to the new i2c
APIs (essentially turning the old therm_pm72 into a proper set of
windfarm drivers). That's one more step toward removing the
deprecated i2c APIs, there's still a few drivers to fix, but we are
getting close
- kexec/kdump support for 47x embedded cores
The big missing thing here is no updates from Freescale. Not sure
what's up here, but with Kumar not working for them anymore things are
a bit in a state of flux in that area."
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (71 commits)
powerpc: Fix irq distribution
Revert "powerpc/hw-breakpoint: Use generic hw-breakpoint interfaces for new PPC ptrace flags"
powerpc: Fixing a cputhread code documentation
powerpc/crypto: Enable the PFO-based encryption device
powerpc/crypto: Build files for the nx device driver
powerpc/crypto: debugfs routines and docs for the nx device driver
powerpc/crypto: SHA512 hash routines for nx encryption
powerpc/crypto: SHA256 hash routines for nx encryption
powerpc/crypto: AES-XCBC mode routines for nx encryption
powerpc/crypto: AES-GCM mode routines for nx encryption
powerpc/crypto: AES-ECB mode routines for nx encryption
powerpc/crypto: AES-CTR mode routines for nx encryption
powerpc/crypto: AES-CCM mode routines for nx encryption
powerpc/crypto: AES-CBC mode routines for nx encryption
powerpc/crypto: nx driver code supporting nx encryption
powerpc/pseries: Enable the PFO-based RNG accelerator
powerpc/pseries/hwrng: PFO-based hwrng driver
powerpc/pseries: Add PFO support to the VIO bus
powerpc/pseries: Add pseries update notifier for OFDT prop changes
powerpc/pseries: Add new hvcall constants to support PFO
...
Pull UML updates from Richard Weinberger:
"Most changes are bug fixes and cleanups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: missing checks of __put_user()/__get_user() return values
um: stub_rt_sigsuspend isn't needed these days anymore
um/x86: merge (and trim) 32- and 64-bit variants of ptrace.h
irq: Remove irq_chip->release()
um: Remove CONFIG_IRQ_RELEASE_METHOD
um: Remove usage of irq_chip->release()
um: Implement um_free_irq()
um: Fix __swp_type()
um: Implement a custom pte_same() function
um: Add BUG() to do_ops()'s error path
um: Remove unused variables
um: bury unused _TIF_RESTORE_SIGMASK
um: wrong sigmask saved in case of multiple sigframes
um: add TIF_NOTIFY_RESUME
um: ->restart_block.fn needs to be reset on sigreturn
- New CPUs: SH7734 (SH-4A), SH7264 and SH7269 (SH-2A)
- New boards: RSK2+SH7264, RSK2+SH7269
- Unbreaking kgdb for SMP
- Consolidation of _32/_64 page fault handling.
- watchdog and legacy DMA chainsawing, part 1
- Conversion to evt2irq() hwirq lookup, to support relocation
of vectored IRQs for irqdomains.
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Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh
Pull SuperH updates from Paul Mundt:
- New CPUs: SH7734 (SH-4A), SH7264 and SH7269 (SH-2A)
- New boards: RSK2+SH7264, RSK2+SH7269
- Unbreaking kgdb for SMP
- Consolidation of _32/_64 page fault handling.
- watchdog and legacy DMA chainsawing, part 1
- Conversion to evt2irq() hwirq lookup, to support relocation of
vectored IRQs for irqdomains.
* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (98 commits)
sh: intc: Kill off special reservation interface.
sh: Enable PIO API for hp6xx and se770x.
sh: Kill off machvec IRQ hinting.
sh: dma: More legacy cpu dma chainsawing.
sh: Kill off MAX_DMA_ADDRESS leftovers.
sh: Tidy up some of the cpu legacy dma header mess.
sh: Move sh4a dma header from cpu-sh4 to cpu-sh4a.
sh64: Fix up vmalloc fault range check.
Revert "sh: Ensure fixmap and store queue space can co-exist."
serial: sh-sci: Fix for port types without BRI interrupts.
sh: legacy PCI evt2irq migration.
sh: cpu dma evt2irq migration.
sh: sh7763rdp evt2irq migration.
sh: sdk7780 evt2irq migration.
sh: migor evt2irq migration.
sh: landisk evt2irq migration.
sh: kfr2r09 evt2irq migration.
sh: ecovec24 evt2irq migration.
sh: ap325rxa evt2irq migration.
sh: urquell evt2irq migration.
...
Linus removed the end-of-address-space hackery from
fs/namei.c:do_getname() so we really have to validate these edge
conditions and cannot cheat any more (as x86 used to as well).
Move to a common C implementation like x86 did. And if both
src and dst are sufficiently aligned we'll do word at a time
copies and checks as well.
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull trivial updates from Jiri Kosina:
"As usual, it's mostly typo fixes, redundant code elimination and some
documentation updates."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (57 commits)
edac, mips: don't change code that has been removed in edac/mips tree
xtensa: Change mail addresses of Hannes Weiner and Oskar Schirmer
lib: Change mail address of Oskar Schirmer
net: Change mail address of Oskar Schirmer
arm/m68k: Change mail address of Sebastian Hess
i2c: Change mail address of Oskar Schirmer
net: Fix tcp_build_and_update_options comment in struct tcp_sock
atomic64_32.h: fix parameter naming mismatch
Kconfig: replace "--- help ---" with "---help---"
c2port: fix bogus Kconfig "default no"
edac: Fix spelling errors.
qla1280: Remove redundant NULL check before release_firmware() call
remoteproc: remove redundant NULL check before release_firmware()
qla2xxx: Remove redundant NULL check before release_firmware() call.
aic94xx: Get rid of redundant NULL check before release_firmware() call
tehuti: delete redundant NULL check before release_firmware()
qlogic: get rid of a redundant test for NULL before call to release_firmware()
bna: remove redundant NULL test before release_firmware()
tg3: remove redundant NULL test before release_firmware() call
typhoon: get rid of redundant conditional before all to release_firmware()
...
Pull x86/apic changes from Ingo Molnar:
"Most of the changes are about helping virtualized guest kernels
achieve better performance."
Fix up trivial conflicts with the iommu updates to arch/x86/kernel/apic/io_apic.c
* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic: Implement EIO micro-optimization
x86/apic: Add apic->eoi_write() callback
x86/apic: Use symbolic APIC_EOI_ACK
x86/apic: Fix typo EIO_ACK -> EOI_ACK and document it
x86/xen/apic: Add missing #include <xen/xen.h>
x86/apic: Only compile local function if used with !CONFIG_GENERIC_PENDING_IRQ
x86/apic: Fix UP boot crash
x86: Conditionally update time when ack-ing pending irqs
xen/apic: implement io apic read with hypercall
Revert "xen/x86: Workaround 'x86/ioapic: Add register level checks to detect bogus io-apic entries'"
xen/x86: Implement x86_apic_ops
x86/apic: Replace io_apic_ops with x86_io_apic_ops.
Pull scheduler changes from Ingo Molnar:
"The biggest change is the cleanup/simplification of the load-balancer:
instead of the current practice of architectures twiddling scheduler
internal data structures and providing the scheduler domains in
colorfully inconsistent ways, we now have generic scheduler code in
kernel/sched/core.c:sched_init_numa() that looks at the architecture's
node_distance() parameters and (while not fully trusting it) deducts a
NUMA topology from it.
This inevitably changes balancing behavior - hopefully for the better.
There are various smaller optimizations, cleanups and fixlets as well"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Taint kernel with TAINT_WARN after sleep-in-atomic bug
sched: Remove stale power aware scheduling remnants and dysfunctional knobs
sched/debug: Fix printing large integers on 32-bit platforms
sched/fair: Improve the ->group_imb logic
sched/nohz: Fix rq->cpu_load[] calculations
sched/numa: Don't scale the imbalance
sched/fair: Revert sched-domain iteration breakage
sched/x86: Rewrite set_cpu_sibling_map()
sched/numa: Fix the new NUMA topology bits
sched/numa: Rewrite the CONFIG_NUMA sched domain support
sched/fair: Propagate 'struct lb_env' usage into find_busiest_group
sched/fair: Add some serialization to the sched_domain load-balance walk
sched/fair: Let minimally loaded cpu balance the group
sched: Change rq->nr_running to unsigned int
x86/numa: Check for nonsensical topologies on real hw as well
x86/numa: Hard partition cpu topology masks on node boundaries
x86/numa: Allow specifying node_distance() for numa=fake
x86/sched: Make mwait_usable() heed to "idle=" kernel parameters properly
sched: Update documentation and comments
sched_rt: Avoid unnecessary dequeue and enqueue of pushable tasks in set_cpus_allowed_rt()
Pull perf changes from Ingo Molnar:
"Lots of changes:
- (much) improved assembly annotation support in perf report, with
jump visualization, searching, navigation, visual output
improvements and more.
- kernel support for AMD IBS PMU hardware features. Notably 'perf
record -e cycles:p' and 'perf top -e cycles:p' should work without
skid now, like PEBS does on the Intel side, because it takes
advantage of IBS transparently.
- the libtracevents library: it is the first step towards unifying
tracing tooling and perf, and it also gives a tracing library for
external tools like powertop to rely on.
- infrastructure: various improvements and refactoring of the UI
modules and related code
- infrastructure: cleanup and simplification of the profiling
targets code (--uid, --pid, --tid, --cpu, --all-cpus, etc.)
- tons of robustness fixes all around
- various ftrace updates: speedups, cleanups, robustness
improvements.
- typing 'make' in tools/ will now give you a menu of projects to
build and a short help text to explain what each does.
- ... and lots of other changes I forgot to list.
The perf record make bzImage + perf report regression you reported
should be fixed."
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (166 commits)
tracing: Remove kernel_lock annotations
tracing: Fix initial buffer_size_kb state
ring-buffer: Merge separate resize loops
perf evsel: Create events initially disabled -- again
perf tools: Split term type into value type and term type
perf hists: Fix callchain ip printf format
perf target: Add uses_mmap field
ftrace: Remove selecting FRAME_POINTER with FUNCTION_TRACER
ftrace/x86: Have x86 ftrace use the ftrace_modify_all_code()
ftrace: Make ftrace_modify_all_code() global for archs to use
ftrace: Return record ip addr for ftrace_location()
ftrace: Consolidate ftrace_location() and ftrace_text_reserved()
ftrace: Speed up search by skipping pages by address
ftrace: Remove extra helper functions
ftrace: Sort all function addresses, not just per page
tracing: change CPU ring buffer state from tracing_cpumask
tracing: Check return value of tracing_dentry_percpu()
ring-buffer: Reset head page before running self test
ring-buffer: Add integrity check at end of iter read
ring-buffer: Make addition of pages in ring buffer atomic
...
Pull percpu updates from Tejun Heo:
"Contains Alex Shi's three patches to remove percpu_xxx() which overlap
with this_cpu_xxx(). There shouldn't be any functional change."
* 'for-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu: remove percpu_xxx() functions
x86: replace percpu_xxx funcs with this_cpu_xxx
net: replace percpu_xxx funcs with this_cpu_xxx or __this_cpu_xxx
Commit d065bd810b
(mm: retry page fault when blocking on disk transfer) and
commit 37b23e0525
(x86,mm: make pagefault killable)
The above commits introduced changes into the x86 pagefault handler
for making the page fault handler retryable as well as killable.
These changes reduce the mmap_sem hold time, which is crucial
during OOM killer invocation.
Port these changes to hexagon.
Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
This function is only used in the same file, and the other similar
functions in this file are also static.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
[rkuo@codeaurora.org: adjusted patch to apply to latest]
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
"make versioncheck" points out that arch/hexagon/include/asm/spinlock_types.h
does not need to include version.h .
A quick look at the file seems to confirm its findings, so here's a patch that
removes the include.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Use resource_size function on resource object
instead of explicit computation.
The semantic patch that makes this change is available
in scripts/coccinelle/api/resource_size.cocci.
More information about semantic patching is available at
http://coccinelle.lip6.fr/
Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Richard Kuo <rkuo@codeaurora.org>
Here is the big staging tree pull request for the 3.5-rc1 merge window.
Loads of changes here, and we just narrowly added more lines than we
added:
622 files changed, 28356 insertions(+), 26059 deletions(-)
But, good news is that there is a number of subsystems that moved out of
the staging tree, to their respective "real" portions of the kernel.
Code that moved out was:
- iio core code
- mei driver
- vme core and bridge drivers
There was one broken network driver that moved into staging as a step
before it is removed from the tree (pc300), and there was a few new
drivers added to the tree:
- new iio drivers
- gdm72xx wimax USB driver
- ipack subsystem and 2 drivers
All of the movements around have acks from the various subsystem
maintainers, and all of this has been in the linux-next tree for a
while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging tree changes from Greg Kroah-Hartman:
"Here is the big staging tree pull request for the 3.5-rc1 merge
window.
Loads of changes here, and we just narrowly added more lines than we
added:
622 files changed, 28356 insertions(+), 26059 deletions(-)
But, good news is that there is a number of subsystems that moved out
of the staging tree, to their respective "real" portions of the
kernel.
Code that moved out was:
- iio core code
- mei driver
- vme core and bridge drivers
There was one broken network driver that moved into staging as a step
before it is removed from the tree (pc300), and there was a few new
drivers added to the tree:
- new iio drivers
- gdm72xx wimax USB driver
- ipack subsystem and 2 drivers
All of the movements around have acks from the various subsystem
maintainers, and all of this has been in the linux-next tree for a
while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fixed up various trivial conflicts, along with a non-trivial one found
in -next and pointed out by Olof Johanssen: a clean - but incorrect -
merge of the arch/arm/boot/dts/at91sam9g20.dtsi file. Fix up manually
as per Stephen Rothwell.
* tag 'staging-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (536 commits)
Staging: bcm: Remove two unused variables from Adapter.h
Staging: bcm: Removes the volatile type definition from Adapter.h
Staging: bcm: Rename all "INT" to "int" in Adapter.h
Staging: bcm: Fix warning: __packed vs. __attribute__((packed)) in Adapter.h
Staging: bcm: Correctly format all comments in Adapter.h
Staging: bcm: Fix all whitespace issues in Adapter.h
Staging: bcm: Properly format braces in Adapter.h
Staging: ipack/bridges/tpci200: remove unneeded casts
Staging: ipack/bridges/tpci200: remove TPCI200_SHORTNAME constant
Staging: ipack: remove board_name and bus_name fields from struct ipack_device
Staging: ipack: improve the register of a bus and a device in the bus.
staging: comedi: cleanup all the comedi_driver 'detach' functions
staging: comedi: remove all 'default N' in Kconfig
staging: line6/config.h: Delete unused header
staging: gdm72xx depends on NET
staging: gdm72xx: Set up parent link in sysfs for gdm72xx devices
staging: drm/omap: initial dmabuf/prime import support
staging: drm/omap: dmabuf/prime mmap support
pstore/ram: Add ECC support
pstore/ram: Switch to persistent_ram routines
...
Here's the big TTY/serial driver pull request for the 3.5-rc1 merge window.
Nothing major in here, just lots of incremental changes from Alan and
Jiri reworking some tty core things to behave better and to get a more
solid grasp on some of the nasty tty locking issues.
There are a few tty and serial driver updates in here as well.
All of this has been in the linux-next releases for a while with no problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull TTY updates from Greg Kroah-Hartman:
"Here's the big TTY/serial driver pull request for the 3.5-rc1 merge
window.
Nothing major in here, just lots of incremental changes from Alan and
Jiri reworking some tty core things to behave better and to get a more
solid grasp on some of the nasty tty locking issues.
There are a few tty and serial driver updates in here as well.
All of this has been in the linux-next releases for a while with no
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (115 commits)
serial: bfin_uart: Make MMR access compatible with 32 bits bf609 style controller.
serial: bfin_uart: RTS and CTS MMRs can be either 16-bit width or 32-bit width.
serial: bfin_uart: narrow the reboot condition in DMA tx interrupt
serial: bfin_uart: Adapt bf5xx serial driver to bf60x serial4 controller.
Revert "serial_core: Update buffer overrun statistics."
tty: hvc_xen: NULL dereference on allocation failure
tty: Fix LED error return
tty: Allow uart_register/unregister/register
tty: move global ldisc idle waitqueue to the individual ldisc
serial8250-em: Add DT support
serial8250-em: clk_get() IS_ERR() error handling fix
serial_core: Update buffer overrun statistics.
tty: drop the pty lock during hangup
cris: fix missing tty arg in wait_event_interruptible_tty call
tty/amiserial: Add missing argument for tty_unlock()
tty_lock: Localise the lock
pty: Lock the devpts bits privately
tty_lock: undo the old tty_lock use on the ctty
serial8250-em: Emma Mobile UART driver V2
Add missing call to uart_update_timeout()
...
Here's the driver core, and other driver subsystems, pull request for
the 3.5-rc1 merge window.
Outside of a few minor driver core changes, we ended up with the
following different subsystem and core changes as well, due to
interdependancies on the driver core:
- hyperv driver updates
- drivers/memory being created and some drivers moved into it
- extcon driver subsystem created out of the old Android staging switch
driver code
- dynamic debug updates
- printk rework, and /dev/kmsg changes
All of this has been tested in the linux-next releases for a few weeks
with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg Kroah-Hartman:
"Here's the driver core, and other driver subsystems, pull request for
the 3.5-rc1 merge window.
Outside of a few minor driver core changes, we ended up with the
following different subsystem and core changes as well, due to
interdependancies on the driver core:
- hyperv driver updates
- drivers/memory being created and some drivers moved into it
- extcon driver subsystem created out of the old Android staging
switch driver code
- dynamic debug updates
- printk rework, and /dev/kmsg changes
All of this has been tested in the linux-next releases for a few weeks
with no reported problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
Fix up conflicts in drivers/extcon/extcon-max8997.c where git noticed
that a patch to the deleted drivers/misc/max8997-muic.c driver needs to
be applied to this one.
* tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (90 commits)
uio_pdrv_genirq: get irq through platform resource if not set otherwise
memory: tegra{20,30}-mc: Remove empty *_remove()
printk() - isolate KERN_CONT users from ordinary complete lines
sysfs: get rid of some lockdep false positives
Drivers: hv: util: Properly handle version negotiations.
Drivers: hv: Get rid of an unnecessary check in vmbus_prep_negotiate_resp()
memory: tegra{20,30}-mc: Use dev_err_ratelimited()
driver core: Add dev_*_ratelimited() family
Driver Core: don't oops with unregistered driver in driver_find_device()
printk() - restore prefix/timestamp printing for multi-newline strings
printk: add stub for prepend_timestamp()
ARM: tegra30: Make MC optional in Kconfig
ARM: tegra20: Make MC optional in Kconfig
ARM: tegra30: MC: Remove unnecessary BUG*()
ARM: tegra20: MC: Remove unnecessary BUG*()
printk: correctly align __log_buf
ARM: tegra30: Add Tegra Memory Controller(MC) driver
ARM: tegra20: Add Tegra Memory Controller(MC) driver
printk() - restore timestamp printing at console output
printk() - do not merge continuation lines of different threads
...
Here is the big USB 3.5-rc1 pull request for the 3.5-rc1 merge window.
It's touches a lot of different parts of the kernel, all USB drivers,
due to some API cleanups (getting rid of the ancient err() macro) and
some changes that are needed for USB 3.0 power management updates.
There are also lots of new drivers, pimarily gadget, but others as well.
We deleted a staging driver, which was nice, and finally dropped the
obsolete usbfs code, which will make Al happy to never have to touch
that again.
There were some build errors in the tree that linux-next found a few
days ago, but those were fixed by the most recent changes (all were due
to us not building with CONFIG_PM disabled.)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB 3.5-rc1 changes from Greg Kroah-Hartman:
"Here is the big USB 3.5-rc1 pull request for the 3.5-rc1 merge window.
It's touches a lot of different parts of the kernel, all USB drivers,
due to some API cleanups (getting rid of the ancient err() macro) and
some changes that are needed for USB 3.0 power management updates.
There are also lots of new drivers, pimarily gadget, but others as
well. We deleted a staging driver, which was nice, and finally
dropped the obsolete usbfs code, which will make Al happy to never
have to touch that again.
There were some build errors in the tree that linux-next found a few
days ago, but those were fixed by the most recent changes (all were
due to us not building with CONFIG_PM disabled.)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (477 commits)
xhci: Fix DIV_ROUND_UP compile error.
xhci: Fix compile with CONFIG_USB_SUSPEND=n
USB: Fix core compile with CONFIG_USB_SUSPEND=n
brcm80211: Fix compile error for .disable_hub_initiated_lpm.
Revert "USB: EHCI: work around bug in the Philips ISP1562 controller"
MAINTAINERS: Add myself as maintainer to the USB PHY Layer
USB: EHCI: fix command register configuration lost problem
USB: Remove races in devio.c
USB: ehci-platform: remove update_device
USB: Disable hub-initiated LPM for comms devices.
xhci: Add Intel U1/U2 timeout policy.
xhci: Add infrastructure for host-specific LPM policies.
USB: Add macros for interrupt endpoint types.
xhci: Reserve one command for USB3 LPM disable.
xhci: Some Evaluate Context commands must succeed.
USB: Disable USB 3.0 LPM in critical sections.
USB: Add support to enable/disable USB3 link states.
USB: Allow drivers to disable hub-initiated LPM.
USB: Calculate USB 3.0 exit latencies for LPM.
USB: Refactor code to set LPM support flag.
...
Conflicts:
arch/arm/mach-exynos/mach-nuri.c
arch/arm/mach-exynos/mach-universal_c210.c
drivers/net/wireless/ath/ath6kl/usb.c
While we generally attempt to get rid of board specific files and replace
them with device tree based descriptions, a lot of platforms have not
come that far:
In shmobile, we add two new board files because their recently started
effort to add DT support has not proceeded enough to use it for all of
the important hardware.
In Kirkwood, we are adding support for new boards with a combination of
DT and board file contents in multiple cases.
pxa/mmp and imx are extending support for existing board files but not
adding new ones.
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Merge tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc board specific changes from Olof Johansson:
"While we generally attempt to get rid of board specific files and
replace them with device tree based descriptions, a lot of platforms
have not come that far:
In shmobile, we add two new board files because their recently started
effort to add DT support has not proceeded enough to use it for all of
the important hardware.
In Kirkwood, we are adding support for new boards with a combination
of DT and board file contents in multiple cases.
pxa/mmp and imx are extending support for existing board files but not
adding new ones."
Fix up trivial conflicts in arch/arm/mach-{mmp/ttc_dkb.c,shmobile/{Kconfig,Makefile}}
* tag 'boards' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (94 commits)
ARM: shmobile: fix smp build
ARM: kirkwood: Add support for RaidSonic IB-NAS6210/6220 using devicetree
kirkwood: Add iconnect support
orion/kirkwood: create a generic function for gpio led blinking
kirkwood/orion: fix orion_gpio_set_blink
ARM: kirkwood: Define DNS-320/DNS-325 NAND in fdt
kirkwood: Allow nand to be configured via. devicetree
mtd: Add orion_nand devicetree bindings
ARM: kirkwood: Basic support for DNS-320 and DNS-325
ARM: mach-shmobile: Use DT_MACHINE for armadillo 800 eva
ARM: mach-shmobile: Use DT_MACHINE for KZM9G
ARM: pxa: hx4700: Add Synaptics NavPoint touchpad
ARM: pxa: Use REGULATOR_SUPPLY macro
ARM: mach-shmobile: kzm9g: enable SMP boot
ARM: mach-shmobile: kzm9g: defconfig update
ARM: mach-shmobile: kzm9g: add PCF8757 gpio-key
ARM: mach-shmobile: kzm9g: add SDHI support
ARM: mach-shmobile: kzm9g: add MMCIF support
ARM: mach-shmobile: kzm9g: correct screen direction
ARM: mach-shmobile: sh73a0.h: add GPIO_NR
...
John says:
--------------------
I apologize for not having sent this sooner. FWIW, I was in a car
somewhere between Illinois and North Carolina for most of the day
Sunday and Monday... :-)
This is (obviously) the last non-fix pull request for wireless bits
intended for 3.5. It includes AP support for mwifiex, a variety of HCI
and other updates for NFC, some brcmfmac and brcmsmac refactoring,
a large batch of ssb and bcma updates, a batch of ath6kl updates,
some cfg80211 and mac80211 updates/refactoring from Johannes Berg,
a rather large collection of Bluetooth updates by way of Gustavo,
and a variety of other bits here and there.
--------------------
Signed-off-by: David S. Miller <davem@davemloft.net>
With sun4c removed we can fall-back to the common implementation.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Power management changes here are mostly for the omap platform, but also
include cpuidle changes for ux500 and suspend/resume code for mmp.
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Merge tag 'pm' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc power management changes from Olof Johansson:
"Power management changes here are mostly for the omap platform, but
also include cpuidle changes for ux500 and suspend/resume code for
mmp."
* tag 'pm' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
ARM: OMAP2+: WDTIMER integration: fix !PM boot crash, disarm timer after hwmod reset
ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod database
ARM: OMAP4: hwmod_data: Name the common irq for McBSP ports
ARM: OMAP4: hwmod data: I2C: add flag for context restore
ARM: OMAP3: hwmod_data: Rename the common irq for McBSP ports
ARM: OMAP2xxx: hwmod data: add HDQ/1-wire hwmod
ARM: OMAP3: hwmod data: add HDQ/1-wire hwmod
ARM: OMAP2+: hwmod data: add HDQ/1-wire hwmod shared data
ARM: OMAP2+: HDQ1W: add custom reset function
ARM: OMAP2420: hwmod data: Add MMC hwmod data for 2420
arm: omap3: clockdomain data: Remove superfluous commas from gfx_sgx_3xxx_wkdeps[]
ARM: OMAP2+: powerdomain: Get rid off duplicate pwrdm_clkdm_state_switch() API
ARM: OMAP3: clock data: add clockdomain for HDQ functional clock
ARM: OMAP3+: dpll: Configure autoidle mode only if it's supported
ARM: OMAP2+: dmtimer: cleanup iclk usage
ARM: OMAP4+: Add prm and cm base init function.
ARM: OMAP2/3: Add idle_st bits for ST_32KSYNC timer to prcm-common header
ARM: OMAP3: Fix CM register bit masks
ARM: OMAP: clock: convert AM3517/3505 detection/flags to AM35xx
ARM: OMAP3: clock data: treat all AM35x devices the same
...
With this, five platforms are moving to the relatively new pinctrl
subsystem for their pin management, replacing the older soc specific
in-kernel interfaces with common code.
There is quite a bit of net addition of code for each platform being
added to the pinctrl subsystem. but the payback comes later when adding
new boards can be done by only providing new device trees instead.
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Merge tag 'pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm soc-specific pinctrl changes from Olof Johansson:
"With this, five platforms are moving to the relatively new pinctrl
subsystem for their pin management, replacing the older soc specific
in-kernel interfaces with common code.
There is quite a bit of net addition of code for each platform being
added to the pinctrl subsystem. But the payback comes later when
adding new boards can be done by only providing new device trees
instead."
Fix up trivial conflicts in arch/arm/mach-ux500/{Makefile,board-mop500.c}
* tag 'pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (61 commits)
mtd: nand: gpmi: fix compile error caused by pinctrl call
ARM: PRIMA2: select PINCTRL and PINCTRL_SIRF in Kconfig
ARM: nomadik: enable PINCTRL_NOMADIK where needed
ARM: mxs: enable pinctrl support
video: mxsfb: adopt pinctrl support
ASoC: mxs-saif: adopt pinctrl support
i2c: mxs: adopt pinctrl support
mtd: nand: gpmi: adopt pinctrl support
mmc: mxs-mmc: adopt pinctrl support
serial: mxs-auart: adopt pinctrl support
serial: amba-pl011: adopt pinctrl support
spi/imx: adopt pinctrl support
i2c: imx: adopt pinctrl support
can: flexcan: adopt pinctrl support
net: fec: adopt pinctrl support
ARM: ux500: switch MSP to using pinctrl for pins
ARM: ux500: alter MSP registration to return a device pointer
ARM: ux500: switch to using pinctrl for uart0
ARM: ux500: delete custom pin control system
ARM: ux500: switch over to Nomadik pinctrl driver
...
Three new system-on-chip models are supported: the st-ericsson u9540
in ux500, the sam9n12 in at91 and the emma ev2 in shmobile.
Emma is a little bit special because it is completely unrelated to
the classic shmobile models, but the new Renesas rmobile SoCs are a
combination of things from both Emma and shmobile, so it was decided to
have them all live in one directory.
This also contains updates to existing shmobile soc code as well as some
related board changes due to dependencies.
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Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull support for new arm SoCs from Olof Johansson:
"Three new system-on-chip models are supported: the st-ericsson u9540
in ux500, the sam9n12 in at91 and the emma ev2 in shmobile.
Emma is a little bit special because it is completely unrelated to the
classic shmobile models, but the new Renesas rmobile SoCs are a
combination of things from both Emma and shmobile, so it was decided
to have them all live in one directory.
This also contains updates to existing shmobile soc code as well as
some related board changes due to dependencies."
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits)
mach-shmobile: Use DT_MACHINE for KZM9D V3
mach-shmobile: Emma Mobile EV2 DT support V3
mach-shmobile: KZM9D board Ethernet support V3
mach-shmobile: Emma Mobile EV2 GPIO support V3
mach-shmobile: Emma Mobile EV2 SMP support V3
mach-shmobile: KZM9D board support V3
mach-shmobile: Emma Mobile EV2 SoC base support V3
gpio: Emma Mobile GPIO driver V2
ARM: mach-shmobile: sh73a0: fixup PINT/IRQ16-IRQ31 irq number conflict
ARM: mach-shmobile: clock-r8a7740: use followparent_recalc on usb24s
ARM: mach-shmobile: clock-r8a7740: add MMCIF clock
ARM: mach-shmobile: clock-r8a7740: add SDHI clock
ARM: mach-shmobile: clock-r8a7740: add USB clock
ARM: mach-shmobile: clock-r8a7740: add FSI clock
ARM: mach-shmobile: r8a7740: cleanup I2C workaround method
ARM: mach-shmobile: r8a7740: add gpio_irq support
ARM: mach-shmobile: sh7372: Add FSI DMAEngine support
ARM / mach-shmobile: Use preset_lpj with calibrate_delay()
ARM: ux500: ioremap differences for DB9540
ARM: ux500: core U9540 support
...
The spear3xx, lpc32xx, shmobile and mmp platforms are joining the game of
booting using device trees, which is a great step forward for them. at91
and spear have pretty much completed this process with a huge amount of
work being put into at91. The other platforms are continuing the process.
We finally start to see the payback on this investment, as new machines
are getting supported purely by adding a .dts source file that can be
completely independent of the kernel source.
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Merge tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull device tree conversions for arm-soc, part 1, from Olof Johansson:
"The spear3xx, lpc32xx, shmobile and mmp platforms are joining the game
of booting using device trees, which is a great step forward for them.
at91 and spear have pretty much completed this process with a huge
amount of work being put into at91. The other platforms are
continuing the process.
We finally start to see the payback on this investment, as new
machines are getting supported purely by adding a .dts source file
that can be completely independent of the kernel source."
Fix up trivial conflict in arch/arm/Kconfig
* tag 'dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits)
ARM: at91: Add ADC driver to at91sam9260/at91sam9g20 dtsi files
arm/dts: omap4-panda: Add LEDs support
arm/dts: omap4-sdp: Add LEDs support
arm/dts: twl4030: Add twl4030-gpio node
OMAP4: devices: Do not create mcpdm device if the dtb has been provided
OMAP4: devices: Do not create dmic device if the dtb has been provided
Documentation: update docs for mmp dt
ARM: dts: refresh dts file for arch mmp
ARM: mmp: support pxa910 with device tree
ARM: mmp: support mmp2 with device tree
gpio: pxa: parse gpio from DTS file
ARM: mmp: support DT in timer
ARM: mmp: support DT in irq
ARM: mmp: append CONFIG_MACH_MMP2_DT
ARM: mmp: fix build issue on mmp with device tree
ARM: ux500: Enable PRCMU Timer 4 (clocksource) for Device Tree
ARM: ux500: Disable SMSC911x platform code registration when DT is enabled
ARM: ux500: Fork cpu-db8500 platform_devs for sequential DT enablement
ARM: ux500: Do not attempt to register non-existent i2c devices on Snowball
ARM: SPEAr3xx: Correct keyboard data passed from DT
...
These bug fixes were not important enough to have them included in the
v3.4 release, mostly because they cover harmless warnings or unrealistic
configurations. Instead we queue them up to be picked up in the next
merge window.
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Merge tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull non-critical arm-soc bug fixes from Olof Johansson:
"These bug fixes were not important enough to have them included in the
v3.4 release, mostly because they cover harmless warnings or
unrealistic configurations. Instead we queue them up to be picked up
in the next merge window."
Fixed up trivial conflict in arch/arm/mach-omap2/board-omap4panda.c
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: spear6xx: remove board selection options
ARM: OMAP: igep0020: Specify the VPLL2 regulator unconditionally
ARM: OMAP2+: INTC: fix Kconfig option for TI81XX
ARM: OMAP2+: remove incorrect irq_chip ack field
ARM: OMAP4: Adding ID for OMAP4460 ES1.1
ARM: OMAP4: panda: add statics to remove warnings
ARM: OMAP2+: Incorrect Register Offsets in OMAP Mailbox
ARM: OMAP: fix trivial warnings for dspbridge
arm: davinci: use for_each_set_bit_from
ARM: OMAP4: hsmmc: check for null pointer
ARM: OMAP1: fix compilation issue in board-sx1.c
ARM: disable SUSPEND/ARCH_SUSPEND_POSSIBLE for ARCH_TEGRA
ARM: davinci: da850-evm: fix section mismatch
ARM: tegra: add pll_x freq table entry for 750MHz
ARM: davinci: mark spi_board_info arguments as const
ARM: davinci: fix incorrect pdctl next bit position
These cleanups are basically all over the place. The idea is to collect
changes with minimal impact but large number of changes so we can avoid
them from distracting in the diffstat in the other series.
A significant number of lines get removed here, in particular because
the ixp2000 and ixp23xx platforms get removed. These have never been
extremely popular and have fallen into disuse over time with no active
maintainer taking care of them. The u5500 soc never made it into a
product, so we are removing it from the ux500 platform.
Many good cleanups also went into the at91 and omap platforms, as has
been the case for a number of releases.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull first batch of arm-soc cleanups from Olof Johansson:
"These cleanups are basically all over the place. The idea is to
collect changes with minimal impact but large number of changes so we
can avoid them from distracting in the diffstat in the other series.
A significant number of lines get removed here, in particular because
the ixp2000 and ixp23xx platforms get removed. These have never been
extremely popular and have fallen into disuse over time with no active
maintainer taking care of them. The u5500 soc never made it into a
product, so we are removing it from the ux500 platform.
Many good cleanups also went into the at91 and omap platforms, as has
been the case for a number of releases."
Trivial modify-delete conflicts in arch/arm/mach-{ixp2000,ixp23xx}
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (152 commits)
ARM: clps711x: Cleanup IRQ handling
ARM clps711x: Removed unused header mach/time.h
ARM: clps711x: Added note about support EP731x CPU to Kconfig
ARM: clps711x: Added missing register definitions
ARM: clps711x: Used own subarch directory for store header file
Dove: Fix Section mismatch warnings
ARM: orion5x: ts78xx debugging changes
ARM: orion5x: remove PM dependency from ts78xx
ARM: orion5x: ts78xx fix NAND resource off by one
ARM: orion5x: ts78xx whitespace cleanups
Orion5x: Fix Section mismatch warnings
Orion5x: Fix warning: struct pci_dev declared inside paramter list
ARM: clps711x: Combine header files into one for clps711x-targets
ARM: S3C24XX: Use common macro to define resources on mach-qt2410.c
ARM: S3C24XX: Use common macro to define resources on mach-osiris.c
ARM: EXYNOS: Adapt to cpuidle core time keeping and irq enable
ARM: S5PV210: Use common macro to define resources on mach-smdkv210.c
ARM: S5PV210: Use common macro to define resources on dev-audio.c
ARM: S5PC100: Use common macro to define resources on dev-audio.c
ARM: S5P64X0: Use common macro to define resources on dev-audio.c
...
At present reserving the IRLs in the IRQ bitmap in addition to the
dropping of the legacy IRQ pre-allocation prevent IRL IRQs from being
allocated for the x3proto board.
The only reason to permit reservations was to lock down possible hardware
vectors prior to dynamic IRQ scanning, but this doesn't matter much given
that the hardware controller configuration is sorted before we get around
to doing any dynamic IRQ allocation anyways. Beyond that, all of the
tables are __init annotated, so quite a bit more work would need to be
done to support reconfiguring things like IRL controllers on the fly,
much more than would ever make it worth the hassle.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This is a partial revert of
15ed103a98 ("edac: Fix spelling errors")
6997991ab0 ("mips: Fix printk typos in arc/mips")
which change code that doesn't exist any more in edac/mips trees.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
setting CONFIG_IRQ_ALL_CPUS distributes IRQs to CPUs only when
the number of online CPUs equals NR_CPUS. See commit
280ff97494 "sparc64: fix and
optimize irq distribution" for more details.
Using the online mask fixes IRQ-to-CPU distribution on systems
that boot with less than NR_CPUS.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This reverts commit 1b788400bb.
It causes oopses when passed incorrect arguments and has a
design fault using IPIs with interrupts disabled.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
It's already called if TIF_NOTIFY_RESUME is set, so we only
need to add the actual work. Note that checking for RESTORE_SIGMASK
was not needed - set_restore_sigmask() also sets SIGPENDING, so
we never RESTORE_SIGMASK without SIGPENDING.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
TIF_NOTIFY_RESUME added (as bit 5). That way nommu glue needs no changes at
all; mmu one needs just to replace jmi do_signal_return to jne do_signal_return
There we have flags shifted up, until bit 6 (SIGPENDING) is in MSBit; instead
of checking that MSBit is set (jmi) we check that MSBit or something below it
is set (jne); bits 0..4 are never set, so that's precisely "bit 6 or bit 5 is
set".
Usual handling of NOTIFY_RESUME/SIGPENDING is done in do_notify_resume(); glue
calls it instead of do_signal().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* move force_sigsegv() (from setup...frame()) and clearing RESTART_SIGMASK
(from do_signal()) into hanlde_signal()
* get rid of handle_signal() return value and oldset argument
* checking for TIF_SIGPENDING is enough; set_restart_sigmask() sets this
one as well.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
It's been a dead code since commit 571202f50f
Author: Michal Simek <monstr@monstr.eu>
Date: Fri Dec 11 12:54:04 2009 +0100
microblaze: Remove rt_sigsuspend wrapper
Generic rt_sigsuspend syscalls doesn't need any asm wrapper.
but that commit has only removed it from entry.S, missing one in entry-nommu.S.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
... and resetting sa_handler in local copy filled by get_signal_to_deliver()
is obviously pointless anyway.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Linus Torvalds
David S. Miller
Michael Cree
Mans Rullgard
H. Peter Anvin
Tony Luck
Andi Kleen
Richard Kuo
Kautuk Consul
Julia Lawall
Jesper Juhl
Thomas Meyer
John W. Linville
Sam Ravnborg
Paul Mundt
Jiri Kosina
Marek Szyprowski
Kim Phillips
Benjamin Herrenschmidt
Anshuman Khandual
Al Viro