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* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (32 commits)
x86: cpa, strict range check in try_preserve_large_page()
x86: cpa, enable CONFIG_DEBUG_PAGEALLOC on 64-bit
x86: cpa, use page pool
x86: introduce page pool in cpa
x86: DEBUG_PAGEALLOC: enable after mem_init()
brk: help text typo fix
lguest: accept guest _PAGE_PWT page table entries
x86 PM: update stale comments
x86 PM: consolidate suspend and hibernation code
x86 PM: rename 32-bit files in arch/x86/power
x86 PM: move 64-bit hibernation files to arch/x86/power
x86: trivial printk optimizations
x86: fix early_ioremap pagetable ops
x86: construct 32-bit boot time page tables in native format.
x86, core: remove CONFIG_FORCED_INLINING
x86: avoid unused variable warning in mm/init_64.c
x86: fixup more paravirt fallout
brk: document randomize_va_space and CONFIG_COMPAT_BRK (was Re:
x86: fix sparse warnings in acpi/bus.c
x86: fix sparse warning in topology.c
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Without this you get undefined symbol errors with CONFIG_SND=N:
ERROR: "snd_pcm_period_elapsed" [drivers/media/video/em28xx/em28xx-alsa.ko] undefined!
ERROR: "snd_pcm_hw_constraint_integer" [drivers/media/video/em28xx/em28xx-alsa.ko] undefined!
ERROR: "snd_pcm_set_ops" [drivers/media/video/em28xx/em28xx-alsa.ko] undefined!
ERROR: "snd_pcm_lib_ioctl" [drivers/media/video/em28xx/em28xx-alsa.ko] undefined!
ERROR: "snd_card_new" [drivers/media/video/em28xx/em28xx-alsa.ko] undefined!
ERROR: "snd_card_free" [drivers/media/video/em28xx/em28xx-alsa.ko] undefined!
ERROR: "snd_card_register" [drivers/media/video/em28xx/em28xx-alsa.ko] undefined!
ERROR: "snd_pcm_new" [drivers/media/video/em28xx/em28xx-alsa.ko] undefined!
Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit 75b6102257874a4ea796af686de2f72cfa0452f9 ("rtc: add support for
Epson RTC-9701JE V4") introduced the warning
drivers/rtc/rtc-r9701.c: In function `r9701_get_datetime':
drivers/rtc/rtc-r9701.c:74: warning: unused variable `time'
Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit 11b0cc3a4af65413ca3bb5698769e091486e0b22 ("x25_asy: Fix ref count
rule violation") introduced the warning
drivers/net/wan/x25_asy.c: In function `x25_asy_open_tty':
drivers/net/wan/x25_asy.c:557: warning: unused variable `ld'
Signed-off-by: S.Çağlar Onur <caglar@pardus.org.tr>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Beginning from commit 4138cc3418f5, ioremap_nocache() sets the _PAGE_PWT
flag.
Lguest doesn't accept a guest pte with a _PWT flag and reports a "bad
page table entry" in that case.
Accept guest _PAGE_PWT page table entries.
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Add function definition and extern variables to asm-x86/acpi.h.
All of these are used in bus.c in ifdef(CONFIG_X86) sections, so are
only added to the x86 include headers. boot.c already includes acpi.h
so no changes are needed there.
Fixes the following:
arch/x86/kernel/acpi/boot.c:83:4: warning: symbol 'acpi_sci_flags' was not declared. Should it be static?
arch/x86/kernel/acpi/boot.c:84:5: warning: symbol 'acpi_sci_override_gsi' was not declared. Should it be static?
arch/x86/kernel/acpi/boot.c:421:13: warning: symbol 'acpi_pic_sci_set_trigger' was not declared. Should it be static?
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] dynamic page tables.
[S390] Add four level page tables for CONFIG_64BIT=y.
[S390] 1K/2K page table pages.
[S390] Remove a.out header file.
[S390] sclp_vt220: Fix vt220 initialization
[S390] qdio: avoid hang when establishing qdio queues
[S390] VMEM_MAX_PHYS overflow on 31 bit.
[S390] zcrypt: Do not start ap poll thread per default
[S390] Fix __ffs_word_loop/__ffz_word_loop inlnie assembly.
[S390] Wire up new timerfd syscalls.
[S390] Update default configuration.
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* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild:
Kbuild: Fix deb-pkg target to work with kernel versions ending with -<text-without-digit>
ide: introduce HAVE_IDE
kbuild: silence CHK/UPD messages according to $(quiet)
scsi: fix makefile for aic7(3*x)
kbuild/modpost: Use warn() for announcing section mismatches
Add binoffset to gitignore
kbuild/modpost: improve warnings if symbol is unknown
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
Merge branches 'release' and 'buildfix' into release
acer-wmi - Add documentation
sonypi - Move sonypi.txt to Documentation/laptops
sony-laptop - Move sony-laptop.txt to Documentation/laptops
thinkpad-acpi - Move thinkpad-acpi.txt to Documentation/laptops
Documentation - Create laptops sub-directory
ACPI: thermal: buildfix for CONFIG_THERMAL=n
cpuidle: build fix for non-x86
acer-wmi: Fix backlight on AMW0 (V1) laptops
tc1100-wmi: Mark as experimental
ACPI: SBS: Host controller must initialize before SBS.
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git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc:
mmc: extend ricoh_mmc to support Ricoh RL5c476
at91_mci: use generic GPIO calls
sdhci: add num index for multi controllers case
MAINTAINERS: remove non-existant URLs
mmc: remove sdhci and mmc_spi experimental markers
mmc: Handle suspend/resume in Ricoh MMC disabler
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* git://git.infradead.org/mtd-2.6:
[MTD] [NAND] cs553x_nand: command line partitioning support
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Sony MemoryStick cards are used in many products manufactured by Sony.
They are available both as storage and as IO expansion cards. Currently,
only MemoryStick Pro storage cards are supported via TI FlashMedia
MemoryStick interface.
[mboton@gmail.com: biuld fix]
[akpm@linux-foundation.org: build fix]
Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Miguel Boton <mboton@gmail.co>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Cc: "Oliver Pinter" <oliver.pntr@gmail.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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There are two problems in the vt220 intialization:
o Currently the vt220 console looses early printk events until the
the vt220 tty is registered.
o console should work if tty_register fails
sclp_vt220_con_init calls __sclp_vt220_init and register_console.
It does not register the driver with the sclp core code via
sclp_register. That results in an sclp_send_mask=0. Therefore,
__sclp_vt220_emit will reject buffers with EIO. Unfortunately
register_console will cause the printk buffer to be sent to the
console and, therefore, every early message gets dropped. The
sclp_send_mask is set later during boot, when sclp_vt220_tty_init
calls sclp_register.
The solution is to move the sclp_register call from sclp_vt220_tty_init
to __sclp_vt220_init. This makes sure that the console is properly
registered with the sclp subsystem before the first log buffer messages
are passed to the vt220 console.
We also adopt the cleanup on error to keep the console alive if
tty_register fails.
Thanks to Peter Oberparleiter and Heiko Carstens for review and ideas
for improvement.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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If qdio establish runs in parallel with a channel error,
ccw_device_start_timeout may not trigger the qdio_timeout_handler.
In this case neither QDIO_IRQ_STATE_ESTABLISHED nor
QDIO_IRQ_STATE_ERR is reached and the following wait_event hangs
forever.
Solution: do not make use of the timeout option with
ccw_device_start, but add a timeout to the following wait_event.
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Do not start ap poll thread per default to increase perfomance with
z/VM.
Signed-off-by: Felix Beck <felix.beck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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To allow flexible configuration of IDE introduce HAVE_IDE.
All archs except arm, um and s390 unconditionally select it.
For arm the actual configuration determine if IDE is supported.
This is a step towards introducing drivers/Kconfig for arm.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Russell King - ARM Linux <linux@arm.linux.org.uk>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Fix bug introduced by my latest fix to the aic7xxx Makefile.
Test build on x86 32 and 64 bit.
Without and with -j (parallel build)
Building firmaware is br0ken with O=... but this
is unrelated to this bug-fix.
Tested-by: Adrian Bunk <bunk@kernel.org>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
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Add some initial documentation detailing what acer-wmi is, and how to use
it. Update the Kconfig entry with a reference to the documentation.
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Also update references to sonypi.txt in Kconfig.
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
CC: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
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Also update references to sony-laptop.txt in Kconfig.
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
CC: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
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Also update references to thinkpad-acpi.txt in Kconfig.
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
CC: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
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The last posted version of this patch gave compile error
on IA64. So, here goes yet another rewrite of the patch.
Convert cpu_idle_wait() to cpuidle_kick_cpus() which is
SMP-only, and gives error on non supported CPU.
Changes from last patch sent by Kevin:
Moved the definition of kick_cpus back to cpuidle.c from cpuidle.h:
* Having it in .h gives #error on archs which includes the header file without
actually having CPU_IDLE configured. To make it work in .h, we need one more
#ifdef around that code which makes it messy.
* Also, the function is only called from one file. So, it can be in declared
statically in .c rather than making it available to everyone who includes
the .h file.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Kevin Hilman <khilman@mvista.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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There is some leftover cruft from the old quirk infrastructure that causes
us to be unable to set the backlight on older laptops.
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
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tc1100-wmi has not undergone as much testing as acer-wmi, so it certainly
should be marked as experimental as well until we get more user feedback.
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
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In static case sbshc must be compiled ahead of sbs, so that
hc is configured first.
http://bugzilla.kernel.org/show_bug.cgi?id=9910
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
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Implements kernel command line partitioning support for the CS5535/CS5536 chipsets driver.
For that the following is done:
* cs553x_cleanup(): try the cleanup for all chip selects to not leak memory
* Assign a unique name for each chip select to be separately addressable in the command line mtd-id portion(s)
* Use the already defined PIN_OPT_IDE constant where appropriate for readability
* Include command line partitioning support when CONFIG_MTD_PARTS is set
Signed-off-by: Mart Raudsepp <mart.raudsepp@artecdesign.ee>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/core: Remove unused struct ib_device.flags member
IB/core: Add IP checksum offload support
IPoIB: Add send gather support
IPoIB: Add high DMA feature flag
IB/mlx4: Use multiple WQ blocks to post smaller send WQEs
mlx4_core: Clean up struct mlx4_buf
mlx4_core: For 64-bit systems, vmap() kernel queue buffers
IB/mlx4: Consolidate code to get an entry from a struct mlx4_buf
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Thanks to Kay for keeping us honest.
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Cc: "Williams, Dan J" <dan.j.williams@intel.com>
Acked-by: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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x25_asy does not take an ldisc reference before calling the flush method.
Fix it to use the helper function we provide.
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch acts as a preparation for using checksum offload for IB
devices capable of inserting/verifying checksum in IP packets. The
patch does not actaully turn on NETIF_F_SG - we defer that to the
patches adding checksum offload capabilities.
We only add support for send gathers for datagram mode, since existing
HW does not support checksum offload on connected QPs.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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All current InfiniBand devices can handle all DMA addresses, and it's
hard to imagine anyone would be silly enough to build a new device
that couldn't. Therefore, enable the NETIF_F_HIGHDMA feature for IPoIB.
This has no effect for no, but is needed when we enable gather/scatter
support and checksum stateless offloads.
Signed-off-by: Eli Cohen <eli@mellnaox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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ConnectX HCA supports shrinking WQEs, so that a single work request
can be made of multiple units of wqe_shift. This way, WRs can differ
in size, and do not have to be a power of 2 in size, saving memory and
speeding up send WR posting. Unfortunately, if we do this then the
wqe_index field in CQEs can't be used to look up the WR ID anymore, so
our implementation does this only if selective signaling is off.
Further, on 32-bit platforms, we can't use vmap() to make the QP
buffer virtually contigious. Thus we have to use constant-sized WRs to
make sure a WR is always fully within a single page-sized chunk.
Finally, we use WRs with the NOP opcode to avoid wrapping around the
queue buffer in the middle of posting a WR, and we set the
NoErrorCompletion bit to avoid getting completions with error for NOP
WRs. However, NEC is only supported starting with firmware 2.2.232,
so we use constant-sized WRs for older firmware. And, since MLX QPs
only support SEND, we use constant-sized WRs in this case.
When stamping during NOP posting, do stamping following setting of the
NOP WQE valid bit.
Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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* 'cris' of git://www.jni.nu/cris: (158 commits)
CRIS v32: Remove hwregs/timer_defs.h, it is now architecture specific.
CRIS v32: Change drivers/i2c.c locking.
CRIS v32: Rewrite ARTPEC-3 gpio driver to avoid volatiles and general cleanup.
CRIS: Add new timerfd syscall entries.
MAINTAINERS: Add my information for the CRIS port.
CRIS v32: Correct spelling of bandwidth in function name.
CRIS v32: Clean up nandflash.c for ARTPEC-3 and ETRAX FS.
CRIS v10: Cleanup of drivers/gpio.c
CRIS v10: drivers/net/cris/eth_v10.c rename LED defines to CRIS_LED to avoid name clash.
CRIS: Make io_pwm_set_period members unsigned in etraxgpio.h
CRIS: Move ETRAX_AXISFLASHMAP to common Kconfig file.
CRIS: Drop regs parameter from call to profile_tick in kernel/time.c
CRIS v32: Fix minor formatting issue in mach-a3/io.c
CRIS v32: Initialize GIO even if we're rambooting in kernel/head.S
CRIS v32: Remove kernel/arbiter.c, it now exists in machine dependent directory.
CRIS v32: Minor changes to avoid errors in asm-cris/arch-v32/hwregs/reg_rdwr.h
CRIS v32: arch-v32/hwregs/intr_vect_defs.h moved to machine dependent directory.
CRIS v32: Correct offset for TASK_pid in asm-cris/arch-v32/offset.h
CRIS v32: Move register map header to machine dependent directory.
CRIS v32: Let compiler know that memory is clobbered after a break op.
...
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* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
Enhanced partition statistics: documentation update
Enhanced partition statistics: remove old partition statistics
Enhanced partition statistics: procfs
Enhanced partition statistics: sysfs
Enhanced partition statistics: aoe fix
Enhanced partition statistics: update partition statitics
Enhanced partition statistics: core statistics
block: fixup rq_init() a bit
Manually fixed conflict in drivers/block/aoe/aoecmd.c due to statistics
support.
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git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
[POWERPC] Add arch-specific walk_memory_remove() for 64-bit powerpc
[POWERPC] Enable hotplug memory remove for 64-bit powerpc
[POWERPC] Add remove_memory() for 64-bit powerpc
[POWERPC] Make cell IOMMU fixed mapping printk more useful
[POWERPC] Fix potential cell IOMMU bug when switching back to default DMA ops
[POWERPC] Don't enable cell IOMMU fixed mapping if there are no dma-ranges
[POWERPC] Fix cell IOMMU null pointer explosion on old firmwares
[POWERPC] spufs: Fix timing dependent false return from spufs_run_spu
[POWERPC] spufs: No need to have a runnable SPU for libassist update
[POWERPC] spufs: Update SPU_Status[CISHP] in backing runcntl write
[POWERPC] spufs: Fix state_mutex leaks
[POWERPC] Disable G5 NAP mode during SMU commands on U3
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits)
[IPSEC] flow: reorder "struct flow_cache_entry" and remove SLAB_HWCACHE_ALIGN
[DECNET] ROUTE: remove unecessary alignment
[IPSEC]: Add support for aes-ctr.
[ISDN]: fix section mismatch warning in enpci_card_msg
[TIPC]: declare proto_ops structures as 'const'.
[TIPC]: Kill unused static inline (x5)
[TC]: oops in em_meta
[IPV6] Minor cleanup: remove unused definitions in net/ip6_fib.h
[IPV6] Minor clenup: remove two unused definitions in net/ip6_route.h
[AF_IUCV]: defensive programming of iucv_callback_txdone
[AF_IUCV]: broken send_skb_q results in endless loop
[IUCV]: wrong irq-disabling locking at module load time
[CAN]: Minor clean-ups
[CAN]: Move proto_{,un}register() out of spin-locked region
[CAN]: Clean up module auto loading
[IPSEC] flow: Remove an unnecessary ____cacheline_aligned
[IPV4]: route: fix crash ip_route_input
[NETFILTER]: xt_iprange: add missing #include
[NETFILTER]: xt_iprange: fix typo in address family
[NETFILTER]: nf_conntrack: fix ct_extend ->move operation
...
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
acer-wmi, tc1100-wmi: select ACPI_WMI
ACPI: WMI: Improve Kconfig description
ACPI: DMI: add Panasonic CF-52 and Thinpad X61
ACPI: thermal: syntax, spelling, kernel-doc
intel_menlo: build on X86 only
ACPI: build WMI on X86 only
ACPI: cpufreq: Print _PPC changes via cpufreq debug layer
ACPI: add newline to printk
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There is an outdated comment in serial_core.c also fixed.
Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove the arbitrary 128 device limit for NBD. nbds_max can now be set to
any number. In certain scenarios where devices are used sparsely we have
run into the 128 device limit.
Signed-off-by: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Instead of testing hardcoded values, use pci_match_id to reference the
pci_device_id table. Sideways, it allows easy new additions to the table.
[akpm@linux-foundation.org: remove wrongly-added semicolon]
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Use pci_resource_start instead of accessing pci_dev struct internals.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: WANG Cong <xiyou.wangcong@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add a .show_options super operation to capifs.
Use generic_show_options() and save the complete option string in
capifs_remount().
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This is a LED driver using the PWM on newer SOCs from Atmel; brightness is
controlled by changing the PWM duty cycle. So for example if you've set up
two leds labeled "pwm0" and "pwm1":
echo 0 > /sys/class/leds/pwm2/brightness # off (0%)
echo 80 > /sys/class/leds/pwm2/brightness
echo 255 > /sys/class/leds/pwm2/brightness # on (100%)
Note that "brightness" here isn't linear; maybe that should change. Going
from 4 to 8 probably doubles perceived brightness, while 244 to 248 is
imperceptible.
This is mostly intended to be a simple example of PWM, although it's
realistic since LCD backlights are often driven with PWM to conserve
battery power (and offer brightness options).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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PWM device setup, and a simple PWM driver exposing a programming interface
giving access to each channel's full capabilities. Note that this doesn't
support starting several channels in synch.
[hskinnemoen@atmel.com: allocate platform device dynamically]
[hskinnemoen@atmel.com: Kconfig fix]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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When possible, pass the tty name to request_irq() so that the user can easily
distinguish the different serial ports in /proc/interrupts.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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As pointed out by David Brownell, we really ought to be using container_of
when converting from "struct uart_port *" to "struct atmel_uart_port *".
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Tested-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Introduced by atmel_serial-split-the-interrupt-handler.patch.
Thanks to michael <trimarchi@gandalf.sssup.it> for spotting it.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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