Merge branch 'master' into x86/memblock

Conflicts & resolutions:

* arch/x86/xen/setup.c

dc91c728fd "xen: allow extra memory to be in multiple regions"
24aa07882b "memblock, x86: Replace memblock

Merge branch 'master' into x86/memblock

Conflicts & resolutions:

* arch/x86/xen/setup.c

dc91c728fd "xen: allow extra memory to be in multiple regions"
24aa07882b "memblock, x86: Replace memblock_x86_reserve/free..."

conflicted on xen_add_extra_mem() updates. The resolution is
trivial as the latter just want to replace
memblock_x86_reserve_range() with memblock_reserve().

* drivers/pci/intel-iommu.c

166e9278a3f "x86/ia64: intel-iommu: move to drivers/iommu/"
5dfe8660a3d "bootmem: Replace work_with_active_regions() with..."

conflicted as the former moved the file under drivers/iommu/.
Resolved by applying the chnages from the latter on the moved
file.

* mm/Kconfig

6661672053a "memblock: add NO_BOOTMEM config symbol"
c378ddd53f9 "memblock, x86: Make ARCH_DISCARD_MEMBLOCK a config option"

conflicted trivially. Both added config options. Just
letting both add their own options resolves the conflict.

* mm/memblock.c

d1f0ece6cdc "mm/memblock.c: small function definition fixes"
ed7b56a799c "memblock: Remove memblock_memory_can_coalesce()"

confliected. The former updates function removed by the
latter. Resolution is trivial.

Signed-off-by: Tejun Heo <tj@kernel.org>

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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into wireless-next

Merge tag 'v3.2-rc2' into staging/for_v3.3

* tag 'v3.2-rc2': (3068 commits)
Linux 3.2-rc2
hfs: add sanity check for file name length
fsl-rio: fix compile error
blackfin: Fixup export.h inclu

Merge tag 'v3.2-rc2' into staging/for_v3.3

* tag 'v3.2-rc2': (3068 commits)
Linux 3.2-rc2
hfs: add sanity check for file name length
fsl-rio: fix compile error
blackfin: Fixup export.h includes
Blackfin: add serial TX IRQ in individual platform resource
virtio-pci: fix use after free
ACPI / cpuidle: Remove acpi_idle_suspend (to fix suspend regression)
drm/radeon/kms/combios: fix dynamic allocation of PM clock modes
[CPUFREQ] db8500: fix build error due to undeclared i variable
bma023: Add SFI translation for this device
vrtc: change its year offset from 1960 to 1972
ce4100: fix a build error
arm/imx: fix imx6q mmc error when mounting rootfs
arm/imx: fix AUTO_ZRELADDR selection
arm/imx: fix the references to ARCH_MX3
ARM: mx51/53: set pwm clock parent to ipg_perclk
btrfs: rename the option to nospace_cache
drm/radeon/kms/pm: switch to dynamically allocating clock mode array
drm/radeon/kms: optimize r600_pm_profile_init
drm/radeon/kms/pm: add a proper pm profile init function for fusion
...

Conflicts:
drivers/media/radio/Kconfig

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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux

Conflicts:
drivers/net/wireless/iwlegacy/iwl-debugfs.c
drivers/net/wireless/iwlegacy/iwl-rx.c
drivers/net/wir

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux

Conflicts:
drivers/net/wireless/iwlegacy/iwl-debugfs.c
drivers/net/wireless/iwlegacy/iwl-rx.c
drivers/net/wireless/iwlegacy/iwl-scan.c
drivers/net/wireless/iwlegacy/iwl-tx.c
include/net/bluetooth/bluetooth.h

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Merge commit 'v3.2-rc2' into fbdev-next

Merge branch 'master'; commit 'v3.2-rc2' into next

Merge branch 'master' into for-next

Sync with Linus tree to have 157550ff ("mtd: add GPMI-NAND driver
in the config and Makefile") as I have patch depending on that one.

Merge branch 'for-3.2' into for-3.3

drivers/net: Add export.h to files using EXPORT_SYMBOL/THIS_MODULE

These were getting the macros from an implicit module.h
include via device.h, but we are planning to clean that up.

Signed-off-by:

drivers/net: Add export.h to files using EXPORT_SYMBOL/THIS_MODULE

These were getting the macros from an implicit module.h
include via device.h, but we are planning to clean that up.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

drivers/net: Add export.h to wireless/brcm80211/brcmfmac/bcmsdh.c

This relatively recently added file uses EXPORT_SYMBOL and hence
needs export.h included so that it is compatible with the module.h
split up work.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

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mlx4: Move the Mellanox driver

Moves the Mellanox driver into drivers/net/ethernet/mellanox/ and
make the necessary Kconfig and Makefile changes.

CC: Roland Dreier <roland@kernel.org>
Signed-off-by

mlx4: Move the Mellanox driver

Moves the Mellanox driver into drivers/net/ethernet/mellanox/ and
make the necessary Kconfig and Makefile changes.

CC: Roland Dreier <roland@kernel.org>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

percpu.h is included by sched.h and module.h and thus ends up being
included when bu

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.

2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).

* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>

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mlx4_core: Handle multi-physical function devices

MT26468 (PCI ID 0x6764) devices can expose multiple physical
functions. The current driver only handles the primary physical
function. For other f

mlx4_core: Handle multi-physical function devices

MT26468 (PCI ID 0x6764) devices can expose multiple physical
functions. The current driver only handles the primary physical
function. For other functions, the QUERY_FW firmware command will
fail with the CMD_STAT_MULTI_FUNC_REQ error code. Don't try to drive
such devices, but print a message saying the driver is skipping those
devices rather than just "QUERY_FW command failed."

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>

[ Rather than keeping unsupported devices bound to the driver, simply
print a more informative error message and exit - Roland ]

Signed-off-by: Roland Dreier <rolandd@cisco.com>

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mlx4: Update/add Mellanox Technologies copyright lines to mlx4 driver files

Update existing Mellanox copyright lines to 2008, and add such lines
to files where they are missing.

Signed-off-by: Jack

mlx4: Update/add Mellanox Technologies copyright lines to mlx4 driver files

Update existing Mellanox copyright lines to 2008, and add such lines
to files where they are missing.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

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mlx4_code: Add missing FW status return code

Add ICM_ERROR firmware status code. In mapping to errnos, -ENFILE
seems closest.

This is in preparation for providing more detailed log info using
mlx4

mlx4_code: Add missing FW status return code

Add ICM_ERROR firmware status code. In mapping to errnos, -ENFILE
seems closest.

This is in preparation for providing more detailed log info using
mlx4_err() in low-level driver when a non-zero status is returned.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

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mlx4_core: Move opening brace of function onto a new line

Signed-off-by: Roland Dreier <rolandd@cisco.com>

mlx4_core: Use mmiowb() to avoid firmware commands getting jumbled up

Firmware commands are sent to the HCA by writing multiple words to a
command register block. Access to this block of registers

mlx4_core: Use mmiowb() to avoid firmware commands getting jumbled up

Firmware commands are sent to the HCA by writing multiple words to a
command register block. Access to this block of registers is
serialized with a mutex. However, on large SGI systems writes to the
register block may be reordered within the system interconnect and
reach the HCA in a different order than they were issued (even with
the mutex). Fix this by adding an mmiowb() before dropping the mutex.

This bug was observed with real workloads with the similar FW command
code in the mthca driver, and adding the mmiowb() as in commit
66547550 ("IB/mthca: Use mmiowb() to avoid firmware commands getting
jumbled up") was confirmed to fix the problems, so we should add the
same fix to mlx4.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

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mlx4_core: Use enum value GO_BIT_TIMEOUT_MSECS

Rename GO_BIT_TIMEOUT to GO_BIT_TIMEOUT_MSECS for clarity, and
actually use it as the go bit timeout (instead of having the define
but then ignoring it

mlx4_core: Use enum value GO_BIT_TIMEOUT_MSECS

Rename GO_BIT_TIMEOUT to GO_BIT_TIMEOUT_MSECS for clarity, and
actually use it as the go bit timeout (instead of having the define
but then ignoring it and using a hard-coded 10 * HZ for the actual
timeout).

Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

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mlx4_core: Change command token on timeout

The FW command token is currently only updated on a command completion
event. This means that on command timeout, the same token will be
reused for new

mlx4_core: Change command token on timeout

The FW command token is currently only updated on a command completion
event. This means that on command timeout, the same token will be
reused for new command, which results in a mess if the timed out
command *does* eventually complete.

This is the same change as the patch for mthca from Michael
S. Tsirkin <mst@dev.mellanox.co.il> that was just merged. It seems
sensible to avoid gratuitous differences in FW command processing
between mthca and mlx4.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

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IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters

Add an InfiniBand driver for Mellanox ConnectX adapters. Because
these adapters can also be used as ethernet NICs and Fibre Channel
HBAs

IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters

Add an InfiniBand driver for Mellanox ConnectX adapters. Because
these adapters can also be used as ethernet NICs and Fibre Channel
HBAs, the driver is split into two modules:

mlx4_core: Handles low-level things like device initialization and
processing firmware commands. Also controls resource allocation
so that the InfiniBand, ethernet and FC functions can share a
device without stepping on each other.

mlx4_ib: Handles InfiniBand-specific things; plugs into the
InfiniBand midlayer.

Signed-off-by: Roland Dreier <rolandd@cisco.com>

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