Linus Torvalds [Tue, 13 Dec 2011 23:02:31 +0000 (15:02 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "x86, efi: Calling __pa() with an ioremap()ed address is invalid"
x86, efi: Make efi_call_phys_{prelog,epilog} CONFIG_RELOCATABLE-aware
Linus Torvalds [Tue, 13 Dec 2011 22:59:42 +0000 (14:59 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
ceph: add missing spin_unlock at ceph_mdsc_build_path()
ceph: fix SEEK_CUR, SEEK_SET regression
crush: fix mapping calculation when force argument doesn't exist
ceph: use i_ceph_lock instead of i_lock
rbd: remove buggy rollback functionality
rbd: return an error when an invalid header is read
ceph: fix rasize reporting by ceph_show_options
Linus Torvalds [Tue, 13 Dec 2011 22:58:56 +0000 (14:58 -0800)]
Merge branch 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux
* 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux:
writeback: set max_pause to lowest value on zero bdi_dirty
writeback: permit through good bdi even when global dirty exceeded
writeback: comment on the bdi dirty threshold
fs: Make write(2) interruptible by a fatal signal
writeback: Fix issue on make htmldocs
PCI hotplug: Always allow acpiphp to handle non-PCIe bridges
Commit 0d52f54e2ef64c189dedc332e680b2eb4a34590a (PCI / ACPI: Make
acpiphp ignore root bridges using PCIe native hotplug) added code
that made the acpiphp driver completely ignore PCIe root complexes
for which the kernel had been granted control of the native PCIe
hotplug feature by the BIOS through _OSC. Unfortunately, however,
this was a mistake, because on some systems there were PCI bridges
supporting PCI (non-PCIe) hotplug under such root complexes and
those bridges should have been handled by acpiphp.
For this reason, revert the changes made by the commit mentioned
above and make register_slot() in drivers/pci/hotplug/acpiphp_glue.c
avoid registering hotplug slots for PCIe ports that belong to
root complexes with native PCIe hotplug enabled (which means that
the BIOS has granted the kernel control of this feature for the
given root complex). This is reported to address the original
issue fixed by commit 0d52f54e2ef64c189dedc332e680b2eb4a34590a and
to work on the system where that commit broke things.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Bjørn Mork [Tue, 13 Dec 2011 04:33:02 +0000 (05:33 +0100)]
USB: option: Removing one bogus and adding some new Huawei combinations
Huawei use the product code HUAWEI_PRODUCT_E353 (0x1506) for a
number of different devices, which each can appear with a number
of different descriptor sets. Different types of interfaces
can be identified by looking at the subclass and protocol fields
Subclass 1 protocol 8 is actually the data interface of a CDC
ECM set, with subclass 1 protocol 9 as the control interface.
Neither support serial data communcation, and cannot therefore
be supported by this driver.
Sage Weil [Tue, 13 Dec 2011 17:19:26 +0000 (09:19 -0800)]
ceph: fix SEEK_CUR, SEEK_SET regression
Commit 06222e491e663dac939f04b125c9dc52126a75c4 got the if wrong so that
it always evaluates as true. This is semantically harmless, but makes
SEEK_CUR and SEEK_SET needlessly query the server.
Rewrite the if to explicitly enumerate the cases we DO need a valid i_size
to make this code less fragile.
Reported-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Sage Weil <sage@newdream.net>
Leif Lindholm [Mon, 12 Dec 2011 18:45:36 +0000 (19:45 +0100)]
ARM: 7209/1: Use generic ARM instruction set condition code checks for kprobes.
This patch changes the kprobes implementation to use the generic ARM
instruction set condition code checks, rather than a dedicated
implementation.
Signed-off-by: Leif Lindholm <leif.lindholm@arm.com> Acked-by: Jon Medhurst <tixy@yxit.co.uk> Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Leif Lindholm [Mon, 12 Dec 2011 18:45:24 +0000 (19:45 +0100)]
ARM: 7208/1: Add condition code checking to SWP emulation handler.
This patch fixes two separate issues with the SWP emulation handler:
1: Certain processors implementing ARMv7-A can (legally) take an
undef exception even when the condition code would have meant that
the instruction should not have been executed.
2: Opcodes with all flags set (condition code = 0xf) have been reused
in recent, and not-so-recent, versions of the ARM architecture to
implement unconditional extensions to the instruction set. The
existing code would still have processed any undefs triggered by
executing an opcode with such a value.
This patch uses the new generic ARM instruction set condition code
checks to implement proper handling of these situations.
Signed-off-by: Leif Lindholm <leif.lindholm@arm.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Leif Lindholm [Mon, 12 Dec 2011 18:44:49 +0000 (19:44 +0100)]
ARM: 7207/1: Use generic ARM instruction set condition code checks for nwfpe.
This patch changes the nwfpe implementation to use the new generic
ARM instruction set condition code checks, rather than a local
implementation. It also removes the existing condition code checking,
which has been used for the generic support (in kernel/opcodes.{ch}).
This code has not been tested beyond building, linking and booting.
Signed-off-by: Leif Lindholm <leif.lindholm@arm.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Leif Lindholm [Mon, 12 Dec 2011 18:31:55 +0000 (19:31 +0100)]
ARM: 7206/1: Add generic ARM instruction set condition code checks.
This patch breaks the ARM condition checking code out of nwfpe/fpopcode.{ch}
into a standalone file for opcode operations. It also modifies the code
somewhat for coding style adherence, and adds some temporary variables for
increased readability.
Signed-off-by: Leif Lindholm <leif.lindholm@arm.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Walleij [Mon, 12 Dec 2011 08:24:40 +0000 (09:24 +0100)]
ARM: 7199/2: only look for TCM on ARMv5 and later
The Integrator AP/CP can have a varying set of core modules, some
(like ARM920T) are so old that trying to read the TCM status register
with CP15 will make them hang. So we need to make sure that we are
running on v5 or later in order to be able to activate this for
the Integrator. (The Integrator with CM926EJ-S has 32+32 kb of TCM
memory.)
Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Russell King [Sun, 11 Dec 2011 10:04:00 +0000 (10:04 +0000)]
ARM: Allow Kconfig to control the definition of NR_BANKS
Move the sizing of NR_BANKS to a Kconfig control instead of selecting
it in a header file depending on platform selection. This allows new
additions to its dependencies to be handled more gracefully.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Linus Torvalds [Tue, 13 Dec 2011 06:06:55 +0000 (22:06 -0800)]
linux/log2.h: Fix rounddown_pow_of_two(1)
Exactly like roundup_pow_of_two(1), the rounddown version was buggy for
the case of a compile-time constant '1' argument. Probably because it
originated from the same code, sharing history with the roundup version
from before the bugfix (for that one, see commit 1a06a52ee1b0: "Fix
roundup_pow_of_two(1)").
However, unlike the roundup version, the fix for rounddown is to just
remove the broken special case entirely. It's simply not needed - the
generic code
1UL << ilog2(n)
does the right thing for the constant '1' argment too. The only reason
roundup needed that special case was because rounding up does so by
subtracting one from the argument (and then adding one to the result)
causing the obvious problems with "ilog2(0)".
But rounddown doesn't do any of that, since ilog2() naturally truncates
(ie "rounds down") to the right rounded down value. And without the
ilog2(0) case, there's no reason for the special case that had the wrong
value.
tl;dr: rounddown_pow_of_two(1) should be 1, not 0.
Linus Torvalds [Tue, 13 Dec 2011 04:06:13 +0000 (20:06 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
mmc: core: Fix deadlock when the CONFIG_MMC_UNSAFE_RESUME is not defined
mmc: sdhci-s3c: Remove old and misprototyped suspend operations
mmc: tmio: fix clock gating on platforms with a .set_pwr() method
mmc: sh_mmcif: fix clock gating on platforms with a .down_pwr() method
mmc: core: Fix typo at mmc_card_sleep
mmc: core: Fix power_off_notify during suspend
mmc: core: Fix setting power notify state variable for non-eMMC
mmc: core: Add quirk for long data read time
mmc: Add module.h include to sdhci-cns3xxx.c
mmc: mxcmmc: fix falling back to PIO
mmc: omap_hsmmc: DMA unmap only once in case of MMC error
Ted Feng [Thu, 8 Dec 2011 00:46:21 +0000 (00:46 +0000)]
ipip, sit: copy parms.name after register_netdevice
Same fix as 731abb9cb2 for ipip and sit tunnel.
Commit 1c5cae815d removed an explicit call to dev_alloc_name in
ipip_tunnel_locate and ipip6_tunnel_locate, because register_netdevice
will now create a valid name, however the tunnel keeps a copy of the
name in the private parms structure. Fix this by copying the name back
after register_netdevice has successfully returned.
This shows up if you do a simple tunnel add, followed by a tunnel show:
$ sudo ip tunnel add mode ipip remote 10.2.20.211
$ ip tunnel
tunl0: ip/ip remote any local any ttl inherit nopmtudisc
tunl%d: ip/ip remote 10.2.20.211 local any ttl inherit
$ sudo ip tunnel add mode sit remote 10.2.20.212
$ ip tunnel
sit0: ipv6/ip remote any local any ttl 64 nopmtudisc 6rd-prefix 2002::/16
sit%d: ioctl 89f8 failed: No such device
sit%d: ipv6/ip remote 10.2.20.212 local any ttl inherit
Cc: stable@vger.kernel.org Signed-off-by: Ted Feng <artisdom@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Li Wei [Tue, 6 Dec 2011 21:23:45 +0000 (21:23 +0000)]
ipv6: Fix for adding multicast route for loopback device automatically.
There is no obvious reason to add a default multicast route for loopback
devices, otherwise there would be a route entry whose dst.error set to
-ENETUNREACH that would blocking all multicast packets.
====================
[ more detailed explanation ]
The problem is that the resulting routing table depends on the sequence
of interface's initialization and in some situation, that would block all
muticast packets. Suppose there are two interfaces on my computer
(lo and eth0), if we initailize 'lo' before 'eth0', the resuting routing
table(for multicast) would be
# ip -6 route show | grep ff00::
unreachable ff00::/8 dev lo metric 256 error -101
ff00::/8 dev eth0 metric 256
When sending multicasting packets, routing subsystem will return the first
route entry which with a error set to -101(ENETUNREACH).
I know the kernel will set the default ipv6 address for 'lo' when it is up
and won't set the default multicast route for it, but there is no reason to
stop 'init' program from setting address for 'lo', and that is exactly what
systemd did.
I am sure there is something wrong with kernel or systemd, currently I preferred
kernel caused this problem.
====================
Signed-off-by: Li Wei <lw@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
The stations always chooses 1Mbps for all trasmitting frames,
whenever the AP is configured to lock the supported rates.
As the max phy rate is always set with the 4th from highest phy rate,
this assumption might be wrong if we have less than that. Fix that.
Cc: stable@kernel.org Cc: Paul Stewart <pstew@google.com> Reported-by: Ajay Gummalla <agummalla@google.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Dan Carpenter [Fri, 9 Dec 2011 06:35:39 +0000 (09:35 +0300)]
nfc: signedness bug in __nci_request()
wait_for_completion_interruptible_timeout() returns -ERESTARTSYS if
interrupted so completion_rc needs to be signed. The current code
probably returns -ETIMEDOUT if we hit this situation, but after this
patch is applied it will return -ERESTARTSYS.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Wey-Yi Guy [Thu, 8 Dec 2011 23:52:00 +0000 (15:52 -0800)]
iwlwifi: do not set the sequence control bit is not needed
Check the IEEE80211_TX_CTL_ASSIGN_SEQ flag from mac80211, then decide how to
set the TX_CMD_FLG_SEQ_CTL_MSK bit. Setting the wrong bit in BAR frame whill
make the firmware to increment the sequence number which is incorrect and
cause unknown behavior.
CC: stable@vger.kernel.org #3.0+ Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Will Deacon [Mon, 6 Jun 2011 14:49:23 +0000 (15:49 +0100)]
ARM: stop: execute platform callback from cpu_stop code
Sending IPI_CPU_STOP to a CPU causes it to execute a busy cpu_relax
loop forever. This makes it impossible to kexec successfully on an SMP
system since the secondary CPUs do not reset.
This patch adds a callback to platform_cpu_kill, defined when
CONFIG_HOTPLUG_CPU=y, from the ipi_cpu_stop handling code. This function
currently just returns 1 on all platforms that define it but allows them
to do something more sophisticated in the future.
Will Deacon [Mon, 6 Jun 2011 11:28:54 +0000 (12:28 +0100)]
ARM: reset: implement soft_restart for jumping to a physical address
Tools such as kexec and CPU hotplug require a way to reset the processor
and branch to some code in physical space. This requires various bits of
jiggery pokery with the caches and MMU which, when it goes wrong, tends
to lock up the system.
This patch fleshes out the soft_restart implementation so that it
branches to the reset code using the identity mapping. This requires us
to change to a temporary stack, held within the kernel image as a static
array, to avoid conflicting with the new view of memory.
Will Deacon [Wed, 8 Jun 2011 14:29:00 +0000 (15:29 +0100)]
ARM: lib: add call_with_stack function for safely changing stack
When disabling the MMU, it is necessary to take out a 1:1 identity map
of the reset code so that it can safely be executed with and without
the MMU active. To avoid the situation where the physical address of the
reset code aliases with the virtual address of the active stack (which
cannot be included in the 1:1 mapping), it is desirable to change to a
new stack at a location which is less likely to alias.
This code adds a new lib function, call_with_stack:
which changes the stack to point at the sp parameter, before invoking
fn(arg) with the new stack selected.
Reviewed-by: Nicolas Pitre <nicolas.pitre@linaro.org> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Dave Martin <dave.martin@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
Tomas Henzl [Fri, 2 Dec 2011 03:38:42 +0000 (21:38 -0600)]
[SCSI] qla4xxx: a small loop fix
When the qla4xxx_get_fwddb_entry returns QLA_ERROR
the nex_idx is not updated,
for (idx = 0; idx < max_ddbs; idx = next_idx) {
ret = qla4xxx_get_fwddb_entry(ha, idx, NULL, 0, NULL,
&next_idx, &state, &conn_err,
NULL, NULL);
if (ret == QLA_ERROR)
continue;
This means there is a risk that the 'idx < max_ddbs' condition will never
met and the loop will loop forever.
Fix this by explicitly increasing the next_idx in the error condition.
Maybe a break instead of continue is more appropriate, leaving the decision
on the qlogic maintainer.
Signed-off-by: Tomas Henzl <thenzl@redhat.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Mike Christie [Fri, 2 Dec 2011 03:38:41 +0000 (21:38 -0600)]
[SCSI] qla4xxx: fix flash/ddb support
With open-iscsi support, target entries persisted in the FLASH were not
login. Added support in the qla4xxx driver to do the login on probe
time to the target entries saved in the FLASH by user.
With this changes upgrade to the new kernel with open-iscsi support in
qla4xxx will ensure users original target entries login on driver load
Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com> Signed-off-by: Ravi Anand <ravi.anand@qlogic.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Steffen Maier [Fri, 18 Nov 2011 19:00:40 +0000 (20:00 +0100)]
[SCSI] zfcp: return early from slave_destroy if slave_alloc returned early
zfcp_scsi_slave_destroy erroneously always tried to finish its task
even if the corresponding previous zfcp_scsi_slave_alloc returned
early. This can lead to kernel page faults on accessing uninitialized
fields of struct zfcp_scsi_dev in zfcp_erp_lun_shutdown_wait. Take the
port field of the struct to determine if slave_alloc returned early.
This zfcp bug is exposed by 4e6c82b (in turn fixing f7c9c6b to be
compatible with 21208ae) which can call slave_destroy for a
corresponding previous slave_alloc that did not finish.
This patch is based on James Bottomley's fix suggestion in
http://www.spinics.net/lists/linux-scsi/msg55449.html.
ALSA: HDA: Set position fix to LPIB for an Atom/Poulsbo based device
For the Asus 1101HA, reporting position by reading the DMA position
buffer map seems unstable and often wrong. The reporter says that
position_fix=LPIB works much better (although not 100%, but this is
probably due to other issues).
The controller chip is an Intel Poulsbo 8086:811b (rev 07) controller,
and complete alsa-info is available here:
https://launchpadlibrarian.net/86691768/alsa-info.txt.1TNwyE5Ea7
Cc: stable@kernel.org (3.0+) BugLink: http://bugs.launchpad.net/bugs/825709 Tested-by: Stefano Lodi Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Linus Walleij [Fri, 11 Nov 2011 17:48:52 +0000 (18:48 +0100)]
ARM: ux500: update the MOP500 GPIO assignments
This is a more complete list of the MOP500 GPIO pins, especially
for those used with the Snowball board. Sort GPIO number in
falling number order so there is some structure to this file.
Fix some whitespace issues in the process.
Andrew Vasquez [Fri, 18 Nov 2011 17:02:15 +0000 (09:02 -0800)]
[SCSI] qla2xxx: Return the correct value for a mailbox command if 82xx is in reset recovery.
We need to return QLA_FUNCTION_TIMEOUT immediately otherwise we mess up the
mailbox command state machine.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
projects / karo-tx-linux.git / log