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David Woodhouse says:
====================
This is the result of pulling on the thread started by Krzysztof Mazur's
original patch 'pppoatm: don't send frames to destroyed vcc'.
Various problems in the pppoatm and br2684 code are solved, some of which
were easily triggered and would panic the kernel.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The immediate use case for this is that it will allow us to ensure that a
pppoatm queue is woken after it has to drop a packet due to the sock being
locked.
Note that 'release_cb' is called when the socket is *unlocked*. This is
not to be confused with vcc_release() — which probably ought to be called
vcc_close().
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Krzysztof Mazur <krzysiek@podlesie.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"This is mostly about unbreaking architectures that took the UAPI
changes in the v3.7 cycle, plus misc fixes."
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf kvm: Fix building perf kvm on non x86 arches
perf kvm: Rename perf_kvm to perf_kvm_stat
perf: Make perf build for x86 with UAPI disintegration applied
perf powerpc: Use uapi/unistd.h to fix build error
tools: Pass the target in descend
tools: Honour the O= flag when tool build called from a higher Makefile
tools: Define a Makefile function to do subdir processing
x86: Export asm/{svm.h,vmx.h,perf_regs.h}
perf tools: Fix strbuf_addf() when the buffer needs to grow
perf header: Fix numa topology printing
perf, powerpc: Fix hw breakpoints returning -ENOSPC
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As of 026359b [ipv6: Send ICMPv6 RSes only when RAs are accepted], the
logic determining whether to send Router Solicitations is identical
to the logic determining whether kernel accepts Router Advertisements.
However the condition itself is repeated in several code locations.
Unify it by introducing 'ipv6_accept_ra()' accessor.
Also, simplify the condition expression, making it more readable.
No semantic change.
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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[jejb: split this core change into a separate patch]
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Reviewed-by: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Reviewed-by: Nagalakshmi Nandigama <Nagalakshmi.Nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm2
From Tony Lindgren:
Remaining patches to allow omap2+ to build with multiplatform
enabled. Unfortunately the DMA header patch had to be redone
to avoid adding new multiplatform specific include paths, the
other patches are just trivial compile fixes.
Note that this does not yet contain the necessary Kconfig
changes as we are still waiting for some drivers to get
fixed up first.
* tag 'tags/omap-for-v3.8/cleanup-multiplatform-no-clock-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP: Move plat-omap/dma-omap.h to include/linux/omap-dma.h
ASoC: OMAP: mcbsp fixes for enabling ARM multiplatform support
watchdog: OMAP: fixup for ARM multiplatform support
Conflicts due to surrounding changes in:
arch/arm/mach-omap2/omap_hwmod_2420_data.c
arch/arm/mach-omap2/omap_hwmod_2430_data.c
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/headers
From Tony Lindgren:
Move most of remaining omap iommu code to drivers/iommu.
This is needed for the multiplatform kernels as the plat
and mach headers cannot be included.
These changes were agreed to be merged via the arm-soc
tree by Joerg and Ohad as these will cause some merge
conflicts with the other related clean-up branches.
So omap-for-v3.8/cleanup-headers-iommu should be added
as one of the depends branches for arm-soc.
* tag 'omap-for-v3.8/cleanup-headers-iommu-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Move iommu/iovmm headers to platform_data
ARM: OMAP2+: Make some definitions local
ARM: OMAP2+: Move iommu2 to drivers/iommu/omap-iommu2.c
ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h
ARM: OMAP2+: Move iopgtable header to drivers/iommu/
ARM: OMAP: Merge iommu2.h into iommu.h
Conflicts due to surrounding changes in:
arch/arm/mach-omap2/omap_hwmod_44xx_data.c
drivers/media/platform/omap3isp/ispvideo.c
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
From Tony Lindgren:
Move most of remaining omap iommu code to drivers/iommu.
This is needed for the multiplatform kernels as the plat
and mach headers cannot be included.
These changes were agreed to be merged via the arm-soc
tree by Joerg and Ohad as these will cause some merge
conflicts with the other related clean-up branches.
So omap-for-v3.8/cleanup-headers-iommu should be added
as one of the depends branches for arm-soc.
* tag 'omap-for-v3.8/cleanup-headers-iommu-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Move iommu/iovmm headers to platform_data
ARM: OMAP2+: Make some definitions local
ARM: OMAP2+: Move iommu2 to drivers/iommu/omap-iommu2.c
ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h
ARM: OMAP2+: Move iopgtable header to drivers/iommu/
ARM: OMAP: Merge iommu2.h into iommu.h
Conflicts due to surrounding changes fixed up in:
arch/arm/mach-omap2/omap_hwmod_44xx_data.c
drivers/media/platform/omap3isp/ispvideo.c
Signed-off-by: Olof Johansson <olof@lixom.net>
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Make it possible to disconnect the IB RC connection used by the SRP
protocol to communicate with a target.
Have the SRP transport layer create a sysfs "delete" attribute for
initiator drivers that support this functionality.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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git://xenbits.xen.org/people/ianc/linux into stable/for-linus-3.8
* 'arm-privcmd-for-3.8' of git://xenbits.xen.org/people/ianc/linux:
xen: arm: implement remap interfaces needed for privcmd mappings.
xen: correctly use xen_pfn_t in remap_domain_mfn_range.
xen: arm: enable balloon driver
xen: balloon: allow PVMMU interfaces to be compiled out
xen: privcmd: support autotranslated physmap guests.
xen: add pages parameter to xen_remap_domain_mfn_range
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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With the recent work to remove CONFIG_HOTPLUG, we are starting to get a
bunch of __devinit section warnings, despite CONFIG_HOTPLUG always being
enabled. So, stop marking the sections entirely, by defining them away
the section markings in init.h
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 68835aba4d9b (net: optimize INET input path further)
moved some fields used for tcp/udp sockets lookup in the first cache
line of struct sock_common.
This patch moves inet_dport/inet_num as well, filling a 32bit hole
on 64 bit arches and reducing number of cache line misses in lookups.
Also change INET_MATCH()/INET_TW_MATCH() to perform the ports match
before addresses match, as this check is more discriminant.
Remove the hash check from MATCH() macros because we dont need to
re validate the hash value after taking a refcount on socket, and
use likely/unlikely compiler hints, as the sk_hash/hash check
makes the following conditional tests 100% predicted by cpu.
Introduce skc_addrpair/skc_portpair pair values to better
document the alignment requirements of the port/addr pairs
used in the various MATCH() macros, and remove some casts.
The namespace check can also be done at last.
This slightly improves TCP/UDP lookup times.
IP/TCP early demux needs inet->rx_dst_ifindex and
TCP needs inet->min_ttl, lets group them together in same cache line.
With help from Ben Hutchings & Joe Perches.
Idea of this patch came after Ling Ma proposal to move skc_hash
to the beginning of struct sock_common, and should allow him
to submit a final version of his patch. My tests show an improvement
doing so.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Cc: Joe Perches <joe@perches.com>
Cc: Ling Ma <ling.ma.program@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Create a new subsystem that probes on kernel boundaries
to keep track of the transitions between level contexts
with two basic initial contexts: user or kernel.
This is an abstraction of some RCU code that use such tracking
to implement its userspace extended quiescent state.
We need to pull this up from RCU into this new level of indirection
because this tracking is also going to be used to implement an "on
demand" generic virtual cputime accounting. A necessary step to
shutdown the tick while still accounting the cputime.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Gilad Ben-Yossef <gilad@benyossef.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
[ paulmck: fix whitespace error and email address. ]
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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Merge misc fixes from Andrew Morton:
"Seven fixes, some of them fingers-crossed :("
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (7 patches)
drivers/rtc/rtc-tps65910.c: fix invalid pointer access on _remove()
mm: soft offline: split thp at the beginning of soft_offline_page()
mm: avoid waking kswapd for THP allocations when compaction is deferred or contended
revert "Revert "mm: remove __GFP_NO_KSWAPD""
mm: vmscan: fix endless loop in kswapd balancing
mm/vmemmap: fix wrong use of virt_to_page
mm: compaction: fix return value of capture_free_page()
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If CONFIG_SSB_EMBEDDED or CONFIG_SSB_DRIVER_MIPS is set and
CONFIG_SSB_DRIVER_EXTIF is not set, it will cause compile problems
because of missing functions. This patch fixes these problems.
The mips driver now also uses ssb_chipco_available() instead of
checking bus->chipco.dev manually.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc
From Kukjin Kim:
Just adding camif gpio setup and clkdev.
* 'next/cam-samsung' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: S3C24XX: Add clkdev entry for camif-upll clock
ARM: SAMSUNG: Add s3c24xx/s3c64xx CAMIF GPIO setup helpers
+ Linux 3.7-rc6
Conflicts due to the 3.7-rc6 sync: arch/arm/mach-highbank/system.c
include/linux/clk-provider.h, resolved as in other branches.
Signed-off-by: Olof Johansson <olof@lixom.net>
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This patch removes an unused parameter (src_net) from rtnl_create_link()
method and from the method single invocation, in veth.
This parameter was used in the past when calling
ops->get_tx_queues(src_net, tb) in rtnl_create_link().
The get_tx_queues() member of rtnl_link_ops was replaced by two methods,
get_num_tx_queues() and get_num_rx_queues(), which do not get any
parameter. This was done in commit d40156aa5ecbd51fed932ed4813df82b56e5ff4d by
Jiri Pirko ("rtnl: allow to specify different num for rx and tx queue count").
Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.infradead.org/users/jcooper/linux into late/mvebu
From Jason Cooper. Unfortunately this is a combined branch with all
mvebu code as one drop, something we normally try to avoid and instead
slice vendor topics across our branches. Hopefully we can avoid doing
this again for 3.9!
mvebu everything for v3.8
- due to the complex interdependencies of the received pull requests
I decided to keep this in one branch the way they recommended merging it
- this was their first attempt at doing pull requests, we'll work on it
with them
- added SMP support for mvebu SoCs
- added coherency fabric
- added mdio and mvneta drivers
- added mirabox board
- added openblocks ax3-4 board
- clock fixes and improvements
- converted mv_xor driver to devicetree (extensive series in itself)
* tag 'mvebu_everything_for_3.8' of git://git.infradead.org/users/jcooper/linux: (85 commits)
dma: mv_xor: fix error handling path
dma: mv_xor: fix error checking of irq_of_parse_and_map()
dma: mv_xor: use request_irq() instead of devm_request_irq()
dma: mv_xor: clear the window override control registers
arm: mvebu: fix address decoding armada_cfg_base() function
ARM: mvebu: update defconfig with I2C and RTC support
ARM: mvebu: Add SATA support for OpenBlocks AX3-4
ARM: mvebu: Add support for the RTC in OpenBlocks AX3-4
ARM: mvebu: Add support for I2C on OpenBlocks AX3-4
ARM: mvebu: Add support for I2C controllers in Armada 370/XP
arm: mvebu: Add hardware I/O Coherency support
arm: plat-orion: Add coherency attribute when setup mbus target
arm: dma mapping: Export a dma ops function arm_dma_set_mask
arm: mvebu: Add SMP support for Armada XP
arm: mm: Add support for PJ4B cpu and init routines
arm: mvebu: Add IPI support via doorbells
arm: mvebu: Add initial support for power managmement service unit
arm: mvebu: Add support for coherency fabric in mach-mvebu
arm: mvebu: update defconfig to include XOR driver
arm: mvebu: update defconfig to include network driver
...
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitch
Conflicts:
net/ipv6/exthdrs_core.c
Jesse Gross says:
====================
This series of improvements for 3.8/net-next contains four components:
* Support for modifying IPv6 headers
* Support for matching and setting skb->mark for better integration with
things like iptables
* Ability to recognize the EtherType for RARP packets
* Two small performance enhancements
The movement of ipv6_find_hdr() into exthdrs_core.c causes two small merge
conflicts. I left it as is but can do the merge if you want. The conflicts
are:
* ipv6_find_hdr() and ipv6_find_tlv() were both moved to the bottom of
exthdrs_core.c. Both should stay.
* A new use of ipv6_find_hdr() was added to net/netfilter/ipvs/ip_vs_core.c
after this patch. The IPVS user has two instances of the old constant
name IP6T_FH_F_FRAG which has been renamed to IP6_FH_F_FRAG.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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It apepars that this patch was innocent, and we hope that "mm: avoid
waking kswapd for THP allocations when compaction is deferred or
contended" will fix the final kswapd-spinning cause.
Cc: Zdenek Kabelac <zkabelac@redhat.com>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robert Jennings <rcj@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Support PCI adapter interrupts using the Single-IRQ-mode. Single-IRQ-mode
disables an adapter IRQ automatically after delivering it until the SIC
instruction enables it again. This is used to reduce the number of IRQs
for streaming workloads.
Up to 64 MSI handlers can be registered per PCI function.
A hash table is used to map interrupt numbers to MSI descriptors.
The interrupt vector is scanned using the flogr instruction.
Only MSI/MSI-X interrupts are supported, no legacy INTs.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Based on earlier discussions[1] we attempted to find a suitable
location for the omap DMA header in commit 2b6c4e73 (ARM: OMAP:
DMA: Move plat/dma.h to plat-omap/dma-omap.h) until the conversion
to dmaengine is complete.
Unfortunately that was before I was able to try to test compile
of the ARM multiplatform builds for omap2+, and the end result
was not very good.
So I'm creating yet another all over the place patch to cut the
last dependency for building omap2+ for ARM multiplatform. After
this, we have finally removed the driver dependencies to the
arch/arm code, except for few drivers that are being worked on.
The other option was to make the <plat-omap/dma-omap.h> path
to work, but we'd have to add some new header directory to for
multiplatform builds.
Or we would have to manually include arch/arm/plat-omap/include
again from arch/arm/Makefile for omap2+.
Neither of these alternatives sound appealing as they will
likely lead addition of various other headers exposed to the
drivers, which we want to avoid for the multiplatform kernels.
Since we already have a minimal include/linux/omap-dma.h,
let's just use that instead and add a note to it to not
use the custom omap DMA functions any longer where possible.
Note that converting omap DMA to dmaengine depends on
dmaengine supporting automatically incrementing the FIFO
address at the device end, and converting all the remaining
legacy drivers. So it's going to be few more merge windows.
[1] https://patchwork.kernel.org/patch/1519591/#
cc: Russell King <linux@arm.linux.org.uk>
cc: Kevin Hilman <khilman@ti.com>
cc: "Benoît Cousson" <b-cousson@ti.com>
cc: Herbert Xu <herbert@gondor.apana.org.au>
cc: "David S. Miller" <davem@davemloft.net>
cc: Vinod Koul <vinod.koul@intel.com>
cc: Dan Williams <djbw@fb.com>
cc: Mauro Carvalho Chehab <mchehab@infradead.org>
cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
cc: David Woodhouse <dwmw2@infradead.org>
cc: Kyungmin Park <kyungmin.park@samsung.com>
cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
cc: Hans Verkuil <hans.verkuil@cisco.com>
cc: Vaibhav Hiremath <hvaibhav@ti.com>
cc: Lokesh Vutla <lokeshvutla@ti.com>
cc: Rusty Russell <rusty@rustcorp.com.au>
cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
cc: Afzal Mohammed <afzal@ti.com>
cc: linux-crypto@vger.kernel.org
cc: linux-media@vger.kernel.org
cc: linux-mtd@lists.infradead.org
cc: linux-usb@vger.kernel.org
cc: linux-fbdev@vger.kernel.org
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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omap-for-v3.8/cleanup-headers-prepare-multiplatform-v3
omap prcm changes via Paul Walmsley <paul@pwsan.com>:
Some miscellaneous OMAP hwmod changes for 3.8, along with a PRM
change needed for one of the hwmod patches to function.
Basic test logs for this branch on top of Tony's
omap-for-v3.8/clock branch at commit
558a0780b0a04862a678f7823215424b4e5501f9 are here:
http://www.pwsan.com/omap/testlogs/hwmod_devel_a_3.8/20121121161522/
However, omap-for-v3.8/clock at 558a0780 does not include some fixes
that are needed for a successful test. With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:
http://www.pwsan.com/omap/testlogs/TEST_hwmod_devel_a_3.8/20121121162719/
which indicate that the series tests cleanly.
Conflicts:
arch/arm/mach-omap2/cm33xx.c
arch/arm/mach-omap2/io.c
arch/arm/mach-omap2/prm_common.c
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Replace references to and remove the connector property fxns, which
have been superseded with the more general object property fxns:
+ drm_connector_attach_property -> drm_object_attach_property
+ drm_connector_property_set_value -> drm_object_property_set_value
+ drm_connector_property_get_value -> drm_object_property_get_value
Signed-off-by: Rob Clark <rob@ti.com>
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Add PCI support for s390, (only 64 bit mode is supported by hardware):
- PCI facility tests
- PCI instructions: pcilg, pcistg, pcistb, stpcifc, mpcifc, rpcit
- map readb/w/l/q and writeb/w/l/q to pcilg and pcistg instructions
- pci_iomap implementation
- memcpy_fromio/toio
- pci_root_ops using special pcilg/pcistg
- device, bus and domain allocation
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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The driver does not expose any custom API to userspace and none of the standard
static code checker tools report any issues, so move it out of staging.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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When a BSS struct is updated, the IEs are currently
overwritten or freed. This can lead to races if some
other CPU is accessing the BSS struct and using the
IEs concurrently.
Fix this by always allocating the IEs in a new struct
that holds the data and length and protecting access
to this new struct with RCU.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Instead of allocating a temporary buffer to build IEs
build them right into the SKB.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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* acpi-enumeration:
spi / ACPI: add ACPI enumeration support
gpio / ACPI: add ACPI support
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Add support for translating ACPI GPIO pin numbers to Linux GPIO API pins.
Needs a gpio controller driver with the acpi handler hook set.
Drivers can use acpi_get_gpio() to translate ACPI5 GpioIO and GpioInt
resources to Linux GPIO's.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The 'io_mutex' is not used anywhere.
The regmap API supports the mutex internally, so no additional mutex
is required.
And 'domain' private data is unnecessary because the irq domain is
already registered by using regmap_add_irq_chip().
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Since the very first patch, stmpe core driver is using irq_invert_polarity as
part of platform data. But, nobody is actually using it in kernel till now.
Also, this is not something part of hardware specs, but is included to cater
some board mistakes or quirks.
So, better get rid of it. This is earlier discussed here:
https://lkml.org/lkml/2012/11/27/636
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Currently there is not limitation of number of requests in the loop bio
list. This can lead into some nasty situations when the caller spawns
tons of bio requests taking huge amount of memory. This is even more
obvious with discard where blkdev_issue_discard() will submit all bios
for the range and wait for them to finish afterwards. On really big loop
devices and slow backing file system this can lead to OOM situation as
reported by Dave Chinner.
With this patch we will wait in loop_make_request() if the number of
bios in the loop bio list would exceed 'nr_congestion_on'.
We'll wake up the process as we process the bios form the list. Some
threshold hysteresis is in place to avoid high frequency oscillation.
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Reported-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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New wait_event{_interruptible}_lock_irq{_cmd} macros added. This commit
moves the private wait_event_lock_irq() macro from MD to regular wait
includes, introduces new macro wait_event_lock_irq_cmd() instead of using
the old method with omitting cmd parameter which is ugly and makes a use
of new macros in the MD. It also introduces the _interruptible_ variant.
The use of new interface is when one have a special lock to protect data
structures used in the condition, or one also needs to invoke "cmd"
before putting it to sleep.
All new macros are expected to be called with the lock taken. The lock
is released before sleep and is reacquired afterwards. We will leave the
macro with the lock held.
Note to DM: IMO this should also fix theoretical race on waitqueue while
using simultaneously wait_event_lock_irq() and wait_event() because of
lack of locking around current state setting and wait queue removal.
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Cc: Neil Brown <neilb@suse.de>
Cc: David Howells <dhowells@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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ERROR: "allnodes" [drivers/w1/masters/w1-gpio.ko] undefined!
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
[grant.likely: allnodes is too generic; rename to of_allnodes]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Ville Syrjala <syrjala@sci.fi>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/pm2
From Tony Lindgren:
omap prcm changes via Paul Walmsley <paul@pwsan.com>:
Some miscellaneous OMAP hwmod changes for 3.8, along with a PRM
change needed for one of the hwmod patches to function.
Basic test logs for this branch on top of Tony's
omap-for-v3.8/clock branch at commit
558a0780b0a04862a678f7823215424b4e5501f9 are here:
http://www.pwsan.com/omap/testlogs/hwmod_devel_a_3.8/20121121161522/
However, omap-for-v3.8/clock at 558a0780 does not include some fixes
that are needed for a successful test. With several reverts,
fixes, and workarounds applied, the following test logs were
obtained:
http://www.pwsan.com/omap/testlogs/TEST_hwmod_devel_a_3.8/20121121162719/
which indicate that the series tests cleanly.
* tag 'omap-for-v3.8/devel-prcm-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (49 commits)
ARM: OMAP2+: omap_device: Correct resource handling for DT boot
ARM: OMAP2+: hwmod: Add possibility to count hwmod resources based on type
ARM: OMAP2+: hwmod: Add support for per hwmod/module context lost count
ARM: OMAP2+: PRM: initialize some PRM functions early
ARM: OMAP2+: clock: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP2xxx: clock: drop obsolete clock data
ARM: OMAP2: clock: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP3+: DPLL: drop !CONFIG_COMMON_CLK sections
ARM: AM33xx: clock: drop obsolete clock data
ARM: OMAP3xxx: clk: drop obsolete clock data
ARM: OMAP3: clock: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP44xx: clock: drop obsolete clock data
ARM: OMAP4: clock: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP: hwmod: Cleanup !CONFIG_COMMON_CLK parts
ARM: OMAP: clock: Switch to COMMON clk
ARM: OMAP2: clock: Add 24xx data using common struct clk
ARM: OMAP3: clock: Add 3xxx data using common struct clk
ARM: AM33XX: clock: add clock data in common clock format
ARM: OMAP4: clock: Add 44xx data using common struct clk
ARM: OMAP2+: clock: add OMAP CCF convenience macros to mach-omap2/clock.h
...
Some context conflicts due to nearby changes resolved in
arch/arm/mach-omap2/io.c.
Signed-off-by: Olof Johansson <olof@lixom.net>
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By Lee Jones (42) and others
via Olof Johansson (13) and others
* next/dt: (249 commits)
ARM: ux500: Rename dbx500 cpufreq code to be more generic
ARM: dts: add missing ux500 device trees
ARM: ux500: Stop registering the PCM driver from platform code
ARM: ux500: Move board specific GPIO info out to subordinate DTS files
ARM: ux500: Disable the MMCI gpio-regulator by default
ARM: Kirkwood: remove kirkwood_ehci_init() from new boards
ARM: Kirkwood: Add support LED of OpenBlocks A6
ARM: Kirkwood: Convert to EHCI via DT for OpenBlocks A6
ARM: kirkwood: Add NAND partiton map for OpenBlocks A6
ARM: kirkwood: Add support second I2C bus and RTC on OpenBlocks A6
ARM: kirkwood: Add support DT of second I2C bus
ARM: kirkwood: Convert mplcec4 board to pinctrl
ARM: Kirkwood: Convert km_kirkwood to pinctrl
ARM: Kirkwood: support 98DX412x kirkwoods with pinctrl
ARM: Kirkwood: Convert IX2-200 to pinctrl.
ARM: Kirkwood: Convert lsxl boards to pinctrl.
ARM: Kirkwood: Convert ib62x0 to pinctrl.
ARM: Kirkwood: Convert GoFlex Net to pinctrl.
ARM: Kirkwood: Convert dreamplug to pinctrl.
ARM: Kirkwood: Convert dockstar to pinctrl.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/cleanup
Timer clean-up to get us closer to moving timer code to drivers,
and to get rid of CONFIG_OMAP_32K_TIMER and rely on the board
or devicetree provided timer configuration.
Note that these changes are on top of the recent timer fixes.
By Jon Hunter (32) and others
via Tony Lindgren
* tag 'omap-for-v3.8/cleanup-timer-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (71 commits)
ARM: OMAP3: cm-t3517: use GPTIMER for system clock
ARM: OMAP2+: timer: remove CONFIG_OMAP_32K_TIMER
ARM: OMAP2+: Fix compiler warning for 32k timer
ARM: OMAP: Remove unnecessary inclusion of dmtimer.h
ARM: OMAP: Add platform data header for DMTIMERs
ARM: OMAP: Remove unnecessary omap_dm_timer structure declaration
ARM: OMAP2+: Remove unnecessary local variable in timer code
ARM: OMAP: Don't store timers physical address
ARM: OMAP: Define omap_dm_timer_prepare function as static
ARM: OMAP: Clean-up dmtimer reset code
ARM: OMAP: Remove __omap_dm_timer_set_source function
ARM: OMAP: Remove unnecessary call to clk_get()
ARM: OMAP: Add dmtimer interrupt disable function
ARM: OMAP: Fix spurious interrupts when using timer match feature
ARM: OMAP: Don't restore DMTIMER interrupt status register
ARM: OMAP: Don't restore of DMTIMER TISTAT register
ARM: OMAP: Fix dmtimer reset for timer1
ARM: OMAP2+: Don't use __omap_dm_timer_reset()
ARM: OMAP2/3: Define HWMOD software reset status for DMTIMERs
ARM: OMAP3: Correct HWMOD DMTIMER SYSC register declarations
...
Change/change conflict in arch/arm/mach-omap2/board-cm-t3517.c.
Signed-off-by: Olof Johansson <olof@lixom.net>
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We really don't want to look at the block size for the raw block device
accesses in fs/block-dev.c, because it may be changing from under us.
So get rid of the max_block logic entirely, since the caller should
already have done it anyway.
That leaves the only user of this function in fs/buffer.c, so move the
whole function there and make it static.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* pm-sleep:
PM / Freezer: Fixup compile error of try_to_freeze_nowarn()
driver core / PM: move the calling to device_pm_remove behind the calling to bus_remove_device
PM / Hibernate: use rb_entry
PM / sysfs: replace strict_str* with kstrto*
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* pm-cpuidle:
cpuidle: Measure idle state durations with monotonic clock
cpuidle: fix a suspicious RCU usage in menu governor
cpuidle: support multiple drivers
cpuidle: prepare the cpuidle core to handle multiple drivers
cpuidle: move driver checking within the lock section
cpuidle: move driver's refcount to cpuidle
cpuidle: fixup device.h header in cpuidle.h
cpuidle / sysfs: move structure declaration into the sysfs.c file
cpuidle: Get typical recent sleep interval
cpuidle: Set residency to 0 if target Cstate not enter
cpuidle: Quickly notice prediction failure in general case
cpuidle: Quickly notice prediction failure for repeat mode
cpuidle / sysfs: move kobj initialization in the syfs file
cpuidle / sysfs: change function parameter
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* pm-cpufreq: (21 commits)
cpufreq: ondemand: update sampling rate only on right CPUs
cpufreq: SPEAr: Add CPUFreq driver
cpufreq: governors: Fix jiffies/cputime mixup (revisited)
cpufreq: ondemand: fix wrong delay sampling rate
cpufreq: exynos: Use static for functions used in only this file
cpufreq: exynos: Broadcast frequency change notifications for all cores
cpufreq: remove use of __devexit
cpufreq: remove use of __devinit
cpufreq: remove use of __devexit_p
cpufreq: Remove unnecessary initialization of a local variable
cpufreq: Make sure target freq is within limits
cpufreq: Avoid calling cpufreq driver's target() routine if target_freq == policy->cur
cpufreq: Fix sparse warning by making local function static
cpufreq: Fix sparse warnings by updating cputime64_t to u64
cpufreq: governors: remove redundant code
cpufreq: return early from __cpufreq_driver_getavg()
cpufreq: fix jiffies/cputime mixup in conservative/ondemand governors
cpufreq: Improve debug prints
cpufreq: Move common part from governors to separate file, v2
cpufreq / core: Fix printing of governor and driver name
...
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* acpi-general: (38 commits)
ACPI / thermal: _TMP and _CRT/_HOT/_PSV/_ACx dependency fix
ACPI: drop unnecessary local variable from acpi_system_write_wakeup_device()
ACPI: Fix logging when no pci_irq is allocated
ACPI: Update Dock hotplug error messages
ACPI: Update Container hotplug error messages
ACPI: Update Memory hotplug error messages
ACPI: Update CPU hotplug error messages
ACPI: Add acpi_handle_<level>() interfaces
ACPI: remove use of __devexit
ACPI / PM: Add Sony Vaio VPCEB1S1E to nonvs blacklist.
ACPI / battery: Correct battery capacity values on Thinkpads
Revert "ACPI / x86: Add quirk for "CheckPoint P-20-00" to not use bridge _CRS_ info"
ACPI: create _SUN sysfs file
ACPI / memhotplug: bind the memory device when the driver is being loaded
ACPI / memhotplug: don't allow to eject the memory device if it is being used
ACPI / memhotplug: free memory device if acpi_memory_enable_device() failed
ACPI / memhotplug: fix memory leak when memory device is unbound from acpi_memhotplug
ACPI / memhotplug: deal with eject request in hotplug queue
ACPI / memory-hotplug: add memory offline code to acpi_memory_device_remove()
ACPI / memory-hotplug: call acpi_bus_trim() to remove memory device
...
Conflicts:
include/linux/acpi.h (two additions at the end of the same file)
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