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We don't need to export sparc_elf_hwcap() to userspace, and it doesn't
build there. Remove it by moving it inside #ifdef __KERNEL__, along with
some other things which don't need to be exported.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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lookups on some CPUS
Lot of routers/embedded devices still use CPUS with 16/32 bytes cache
lines. (486, Pentium, ... PIII) It makes sense to group together
fields used at lookup time so they fit in one cache line. This reduce
cache footprint and speedup lookups.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently the INTC2 code contains a fixed IRQ table that it
iterates through to set the handler type, we move this in to
the CPU subtype setup code instead and allow for submitting
the table that way.
This drops the ST40 tables, as nothing has been happening
with those processors, while converting the only existing
users to use the new table directly (SH7760 and SH7780).
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Right now users have to grab i_mutex before calling remove_suid(), in the
unlikely event that a call to ->setattr() may be needed. Split up the
function in two parts:
- One to check if we need to remove suid
- One to actually remove it
The first we can call lockless.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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This allows file systems to manage their own i_mutex locking while
still re-using the generic_file_splice_write() logic.
OCFS2 in particular wants this so that it can order cluster locks within
i_mutex.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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The splice_actor may be calling ->prepare_write() and ->commit_write(). We
want i_mutex on the inode being written to before calling those so that we
don't race i_size changes.
The double locking behavior is done elsewhere in splice.c, and if we
eventually want _nolock variants of generic_file_splice_write(), fs modules
might have to replicate the nasty locking code. We introduce
inode_double_lock() and inode_double_unlock() to consolidate the locking
rules into one set of functions.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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With the existing prototype the following code:
const void __iomem *io = ioremap();
x = readb(io);
iounmap(io);
did result in a warning.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Some of these were dropped in the header directory rework, add
the few missing ones back in.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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With the recent change ripping out interrupt_table, explicit
padding of the table was missing, causing bad things to happen
when manually inserting handlers in to the table. This problem
particularly showed up in relation to do_fpu_state_restore()
which was inserted quite deeply in to the table and ended up
scribbling over a slab object.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Now with the ide.h mess sorted out, most of these boards
don't need their own directory. Move the headers out, and
update the driver paths.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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The driver that these were using never made it in to
drivers/ide, so kill off the rest of the cruft. These
will have to be reworked for board-specific platform
devices through libata when they're added back through
the setup code.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This splits out some of the previous show_stack() implementation which
was mostly doing the show_trace() work without actually dumping any of
the stack contents. This now gets split in to two sections, where we
do the fetching of the stack pointer and subsequent stack dumping in
show_stack(), while moving the call trace in to show_trace().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This patch limits the amount of time you will defer sending a TSO segment
to less than two clock ticks, or the time between two acks, whichever is
longer.
On slow links, deferring causes significant bursts. See attached plots,
which show RTT through a 1 Mbps link with a 100 ms RTT and ~100 ms queue
for (a) non-TSO, (b) currnet TSO, and (c) patched TSO. This burstiness
causes significant jitter, tends to overflow queues early (bad for short
queues), and makes delay-based congestion control more difficult.
Deferring by a couple clock ticks I believe will have a relatively small
impact on performance.
Signed-off-by: John Heffner <jheffner@psc.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Struct pol_chain has existed since at least the 2.2 kernel, but isn't used
anymore. As the IPv6 policy routing is implemented in a totally different
way in the current kernel, just get rid of it.
Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch allows a TIPC application to cancel an existing
topology service subscription by re-requesting the subscription
with the TIPC_SUB_CANCEL filter bit set. (All other bits of
the cancel request must match the original subscription request.)
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Per Liden <per.liden@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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master.kernel.org:/pub/scm/linux/kernel/git/bcollins/ubuntu-2.6
* 'ubuntu-updates' of master.kernel.org:/pub/scm/linux/kernel/git/bcollins/ubuntu-2.6:
[pci_ids] Add Quicknet XJ vendor/device ID's.
[valkyriefb] Ifdef for when CONFIG_NVRAM isn't enabled.
[platinumfb] Ifdef for when CONFIG_NVRAM isn't enabled.
[igafb] Add pci dev table for module auto loading.
[controlfb] Ifdef for when CONFIG_NVRAM isn't enabled.
[hid-core] TurboX Keyboard needs NOGET quirk.
[ixj] Add pci dev table for module auto loading.
[initio] Add pci dev table for module auto loading.
[fdomain] Add pci dev table for module auto loading.
[BusLogic] Add pci dev table for auto module loading.
[mv643xx] Add pci device table for auto module loading.
[alim7101] Add pci dev table for auto module loading.
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6: (22 commits)
PCI Hotplug: move pci_hotplug.h to include/linux/
change pci hotplug subsystem maintainer to Kristen
PCI: optionally sort device lists breadth-first
cpcihp_generic: prevent loading without "bridge" parameter
pci: Additional search functions
PCI: quirks: switch quirks code offender to use pci_get API
PCI: Update MSI-HOWTO.txt according to pci_msi_supported()
PCI: Improve pci_msi_supported() comments
PCI hotplug: ioremap balanced with iounmap
shpchp: remove unnecessary cmd_busy member from struct controller
shpchp: fix command completion check
pci: Stamp out pci_find_* usage in fakephp
PCI: fix pcie_portdrv_restore_config undefined without CONFIG_PM error
Fix DMA resource allocation in ACPIPnP
PCI: Turn pci_fixup_video into generic for embedded VGA
PCI: add ICH7/8 ACPI/GPIO io resource quirks
PCI: pcie-check-and-return-bus_register-errors fix
PCI: VIA IRQ quirk behaviour change
pciehp: Remove unnecessary check in pciehp_ctrl.c
pciehp - add missing locking
...
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* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] update default configuration
[S390] cio: update documentation.
[S390] dasd: clean up timer.
[S390] Fix pte type checking.
[S390] monwriter find header logic.
[S390] cio: sch_no -> schid.sch_no conversion.
[S390] Wire up epoll_pwait syscall.
[S390] cio: invalid device operational notification
[S390] fix vmlinux link when CONFIG_SYSIPC=n
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] Count resched interrupts
[IA64] remove unused acpi_kbd_controller_present, acpi_legacy_devices
[IA64] update sn2_defconfig
[IA64] reformat pal.S to fit in 80 columns, fix typos
[IA64] remove unused PAL_CALL_IC_OFF
[IA64] - Allow IPIs in timer loop
[IA64] move ioremap/ioremap_nocache under __KERNEL__
[IA64] perfmon fix for global IRQ fix
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This makes it possible to build pci hotplug drivers outside of the main
kernel tree, and Sam keeps telling me to move local header files to
their proper places...
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Problem:
New Dell PowerEdge servers have 2 embedded ethernet ports, which are
labeled NIC1 and NIC2 on the chassis, in the BIOS setup screens, and
in the printed documentation. Assuming no other add-in ethernet ports
in the system, Linux 2.4 kernels name these eth0 and eth1
respectively. Many people have come to expect this naming. Linux 2.6
kernels name these eth1 and eth0 respectively (backwards from
expectations). I also have reports that various Sun and HP servers
have similar behavior.
Root cause:
Linux 2.4 kernels walk the pci_devices list, which happens to be
sorted in breadth-first order (or pcbios_find_device order on i386,
which most often is breadth-first also). 2.6 kernels have both the
pci_devices list and the pci_bus_type.klist_devices list, the latter
is what is walked at driver load time to match the pci_id tables; this
klist happens to be in depth-first order.
On systems where, for physical routing reasons, NIC1 appears on a
lower bus number than NIC2, but NIC2's bridge is discovered first in
the depth-first ordering, NIC2 will be discovered before NIC1. If the
list were sorted breadth-first, NIC1 would be discovered before NIC2.
A PowerEdge 1955 system has the following topology which easily
exhibits the difference between depth-first and breadth-first device
lists.
-[0000:00]-+-00.0 Intel Corporation 5000P Chipset Memory Controller Hub
+-02.0-[0000:03-08]--+-00.0-[0000:04-07]--+-00.0-[0000:05-06]----00.0-[0000:06]----00.0 Broadcom Corporation NetXtreme II BCM5708S Gigabit Ethernet (labeled NIC2, 2.4 kernel name eth1, 2.6 kernel name eth0)
+-1c.0-[0000:01-02]----00.0-[0000:02]----00.0 Broadcom Corporation NetXtreme II BCM5708S Gigabit Ethernet (labeled NIC1, 2.4 kernel name eth0, 2.6 kernel name eth1)
Other factors, such as device driver load order and the presence of
PCI slots at various points in the bus hierarchy further complicate
this problem; I'm not trying to solve those here, just restore the
device order, and thus basic behavior, that 2.4 kernels had.
Solution:
The solution can come in multiple steps.
Suggested fix #1: kernel
Patch below optionally sorts the two device lists into breadth-first
ordering to maintain compatibility with 2.4 kernels. It adds two new
command line options:
pci=bfsort
pci=nobfsort
to force the sort order, or not, as you wish. It also adds DMI checks
for the specific Dell systems which exhibit "backwards" ordering, to
make them "right".
Suggested fix #2: udev rules from userland
Many people also have the expectation that embedded NICs are always
discovered before add-in NICs (which this patch does not try to do).
Using the PCI IRQ Routing Table provided by system BIOS, it's easy to
determine which PCI devices are embedded, or if add-in, which PCI slot
they're in. I'm working on a tool that would allow udev to name
ethernet devices in ascending embedded, slot 1 .. slot N order,
subsort by PCI bus/dev/fn breadth-first. It'll be possible to use it
independent of udev as well for those distributions that don't use
udev in their installers.
Suggested fix #3: system board routing rules
One can constrain the system board layout to put NIC1 ahead of NIC2
regardless of breadth-first or depth-first discovery order. This adds
a significant level of complexity to board routing, and may not be
possible in all instances (witness the above systems from several
major manufacturers). I don't want to encourage this particular train
of thought too far, at the expense of not doing #1 or #2 above.
Feedback appreciated. Patch tested on a Dell PowerEdge 1955 blade
with 2.6.18.
You'll also note I took some liberty and temporarily break the klist
abstraction to simplify and speed up the sort algorithm. I think
that's both safe and appropriate in this instance.
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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In order to finish converting to pci_get_* interfaces we need to add a couple
of bits of missing functionaility
pci_get_bus_and_slot() provides the equivalent to pci_find_slot()
(pci_get_slot is already taken as a name for something similar but not the
same)
pci_get_device_reverse() is the equivalent of pci_find_device_reverse but
refcounting
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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handle_pte_fault uses pte_present, pte_none and pte_file to find out
the type of a pte. That is done without holding the page table lock.
This clashes with the way how ptep_clear_flush removes active page
table entries from the system. First the ipte instruction is used
to invalidate the pte and remove all plt entries for the page. The
ipte sets the hardware invalid bit without changing any other bit.
After the ipte finished the pte is cleared. A concurrent fault can
observe the the previously valid pte with the invalid bit set. With
the current encoding of the different pte types an invalidated
read-only pte can be misinterpreted as a swap-pte.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
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Signed-off-by: Ben Collins <bcollins@ubuntu.com>
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Linux maps PAL instructions with an ITR, but uses a DTC for PAL data.
Section 11.10.2.1.3, "Making PAL Procedures Calls in Physical or Virtual
Mode," of the SDM (rev 2.2), says we must therefore make all PAL calls
with PSR.ic = 1 so that Linux can handle any TLB faults.
PAL_CALL_IC_OFF is currently unused, and as long as we use the ITR + DTC
strategy, we can't use it. So remove it. I also removed the code in
ia64_pal_call_static() that conditionally cleared PSR.ic.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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I noticed these are declared extern outside of __KERNEL__, but surely
they wouldn't be available to userland since they're defined in
ioremap.c. Am I missing something here?
If I'm right about this, then there's probably a good deal of other
stuff in io.h that could move inside __KERNEL__, but at least this is
a start.
Signed-off-by: Aron Griffis <aron@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] switch to new pci_get_bus_and_slot API
[ARM] Update mach-types
[ARM] Fix Zaurii keyboard/touchscreen drivers
[ARM] Fix fallout from IRQ regs changes
[ARM] 3890/1: [Jornada7xx] Addition of MCU commands into jornada720.h
[ARM] 3889/1: [Jornada7xx] Addition of correct SDRAM params into cpu-sa1110.c
[ARM] 3888/1: add pxa27x SSP FSRT register bit definition
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* git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: fm801-gp - handle errors from pci_enable_device()
Input: gameport core - handle errors returned by device_bind_driver()
Input: serio core - handle errors returned by device_bind_driver()
Lockdep: fix compile error in drivers/input/serio/serio.c
Input: serio - add lockdep annotations
Lockdep: add lockdep_set_class_and_subclass() and lockdep_set_subclass()
Input: atkbd - supress "too many keys" error message
Input: i8042 - supress ACK/NAKs when blinking during panic
Input: add missing exports to fix modular build
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When IO error happens on metadata buffer, buffer is freed from memory and
later fsync() is called, filesystems like ext2 fail to report EIO. We
solve the problem by introducing a pointer to associated address space into
the buffer_head. When a buffer is removed from a list of metadata buffers
associated with an address space, IO error is transferred from the buffer to
the address space, so that fsync can later report it.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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It is possible for the ->fopen callback from lockd into nfsd to find that an
answer cannot be given straight away (an upcall is needed) and so the request
has to be 'dropped', to be retried later. That error status is not currently
propagated back.
So:
Change nlm_fopen to return nlm error codes (rather than a private
protocol) and define a new nlm_drop_reply code.
Cause nlm_drop_reply to cause the rpc request to get rpc_drop_reply
when this error comes back.
Cause svc_process to drop a request which returns a status of
rpc_drop_reply.
[akpm@osdl.org: fix warning storm]
Cc: Marc Eshel <eshel@almaden.ibm.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Unless someone reads the documentation for write_seqcount_{begin,end} it is
not obvious, that i_size_write() needs locking. Especially, that lack of such
locking can result in a system hang.
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Introduce desc->name and eliminate the handle_irq_name() hack. Add
set_irq_chip_and_handler_name() to set the flow type and name at once.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Make net_random() more widely available by calling it random32
akpm: hopefully this will permit the removal of carta_random32. That needs
confirmation from Stephane - this code looks somewhat more computationally
expensive, and has a different (ie: callee-stateful) interface.
[akpm@osdl.org: lots of build fixes, cleanups]
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Stephane Eranian <eranian@hpl.hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This fixes some race conditions in the WirelessExtension
handling and association handling code.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (25 commits)
[Bluetooth] Use work queue to trigger URB submission
[Bluetooth] Add locking for bt_proto array manipulation
[Bluetooth] Check if DLC is still attached to the TTY
[Bluetooth] Fix reference count when connection lookup fails
[Bluetooth] Disconnect HID interrupt channel first
[Bluetooth] Support concurrent connect requests
[Bluetooth] Make use of virtual devices tree
[Bluetooth] Handle return values from driver core functions
[Bluetooth] Fix compat ioctl for BNEP, CMTP and HIDP
[IPV6] sit: Add missing MODULE_LICENSE
[IPV6]: Remove bogus WARN_ON in Proxy-NA handling.
[IPv6] rules: Use RT6_LOOKUP_F_HAS_SADDR and fix source based selectors
[XFRM]: Fix xfrm_state_num going negative.
[NET]: reduce sizeof(struct inet_peer), cleanup, change in peer_check_expire()
NetLabel: the CIPSOv4 passthrough mapping does not pass categories correctly
NetLabel: better error handling involving mls_export_cat()
NetLabel: only deref the CIPSOv4 standard map fields when using standard mapping
[BRIDGE]: flush forwarding table when device carrier off
[NETFILTER]: ctnetlink: Remove debugging messages
[NETFILTER]: Update MAINTAINERS entry
...
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Use inc/dec_preempt_count() rather than preempt_enable/disable() and manually
add in the compiler barriers that were provided by the latter. This makes FRV
consistent with other archs.
Furthermore, the compiler barrier effects are now there unconditionally - at
least as far as preemption is concerned - because we don't want the compiler
moving memory accesses out of the section of code in which the mapping is in
force - in effect the kmap_atomic() must imply a LOCK-class barrier and the
kunmap_atomic() must imply an UNLOCK-class barrier to the compiler.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Most Bluetooth chips don't support concurrent connect requests, because
this would involve a multiple baseband page with only one radio. In the
case an upper layer like L2CAP requests a concurrent connect these chips
return the error "Command Disallowed" for the second request. If this
happens it the responsibility of the Bluetooth core to queue the request
and try again after the previous connect attempt has been completed.
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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1) shrink struct inet_peer on 64 bits platforms.
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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: (28 commits)
ACPI: check battery status on resume for un/plug events during sleep
ACPICA: Fix incorrect handling of PCI Express Root Bridge _HID
ACPI: asus_acpi: don't printk on writing garbage to proc files
ACPI: asus_acpi: fix proc files parsing
ACPI: SCI interrupt source override
ACPI: fix printk format warnings
ACPI: fix section for CPU init functions
ACPI: update comments in motherboard.c
ACPI: acpi_pci_link_set() can allocate with either GFP_ATOMIC or GFP_KERNEL
ACPI: fix potential OOPS in power driver with CONFIG_ACPI_DEBUG
ACPI: ibm_acpi: delete obsolete documentation
ACPI: created a dedicated workqueue for notify() execution
ACPI: Remove deferred execution from global lock acquire wakeup path
MSI S270 Laptop support: backlight, wlan, bluetooth states
ACPI: EC: export ec_transaction() for msi-laptop driver
ACPI: EC: Simplify acpi_hw_low_level*() with inb()/outb().
ACPI: EC: Unify poll and interrupt gpe handlers
ACPI: EC: Unify poll and interrupt mode transaction functions
ACPI: EC: Remove unused variables and duplicated code
ACPI: EC: Remove unnecessary delay added by previous transation patch.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb:
V4L/DVB (4750): AGC command1/2 is board specific
V4L/DVB (4748): Fixed oops for Nova-T USB2
V4L/DVB (4746): HM12 is YUV 4:2:0, not YUV 4:1:1
V4L/DVB (4744): The Samsung TCPN2121P30A does not have a tda9887
V4L/DVB (4743): Fix oops in VIDIOC_G_PARM
V4L/DVB (4742): Drivers/media/video: handle sysfs errors
V4L/DVB (4741): {ov511,stv680}: handle sysfs errors
V4L/DVB (4740): Fixed an if-block to avoid floating with debug-messages
V4L/DVB (4739): SECAM support for saa7113 into saa7115
V4L/DVB (4738): Bt8xx/dvb-bt8xx.c: check kmalloc() return value.
V4L/DVB (4734): Tda826x: fix frontend selection for dvb_attach
V4L/DVB (4733): Tda10086: fix frontend selection for dvb_attach
V4L/DVB (4732): Fix spelling error in Kconfig help text for DVB_CORE_ATTACH
V4L/DVB (4731a): Kconfig: restore pvrusb2 menu items
V4L/DVB (4729): Fix VIDIOC_G_FMT for NTSC in cx25840.
V4L/DVB (4727): Support status readout for saa713x based FM radio
V4L/DVB (4725): Fix vivi compile on parisc
V4L/DVB (4692): Add WinTV-HVR3000 DVB-T support
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This adds relevant MCU commands for the j7xx chipset.
Signed-off-by: Kristoffer Ericson <Kristoffer_e1@hotmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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This patch adds a register bit definition for the pxa27x SSP port Frame
Sync Relative Timing (FSRT) bit.
Signed-off-by: Liam Girdwood <liam.girdwood@wolfsonmicro.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Unify the following functions:
acpi_ec_poll_read()
acpi_ec_poll_write()
acpi_ec_poll_query()
acpi_ec_intr_read()
acpi_ec_intr_write()
acpi_ec_intr_query()
into:
acpi_ec_poll_transaction()
acpi_ec_intr_transaction()
These new functions take as arguments an ACPI EC command, a few bytes
to write to the EC data register and a buffer for a few bytes to read
from the EC data register. The old _read(), _write(), _query() are
just special cases of these functions.
Then unified the code in acpi_ec_poll_transaction() and
acpi_ec_intr_transaction() a little more. Both functions are now just
wrappers around the new acpi_ec_transaction_unlocked() function. The
latter contains the EC access logic, the two original
function now just do their special way of locking and call the the
new function for the actual work.
This saves a lot of very similar code. The primary reason for doing
this, however, is that my driver for MSI 270 laptops needs to issue
some non-standard EC commands in a safe way. Due to this I added a new
exported function similar to ec_write()/ec_write() which is called
ec_transaction() and is essentially just a wrapper around
acpi_ec_{poll,intr}_transaction().
Signed-off-by: Lennart Poettering <mzxreary@0pointer.de>
Acked-by: Luming Yu <luming.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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