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Author SHA1 Message Date
Alexandre Bounine a11650e110 rapidio: make enumeration/discovery configurable
Systems that use RapidIO fabric may need to implement their own
enumeration and discovery methods which are better suitable for needs of
a target application.

The following set of patches is intended to simplify process of
introduction of new RapidIO fabric enumeration/discovery methods.

The first patch offers ability to add new RapidIO enumeration/discovery
methods using kernel configuration options.  This new configuration
option mechanism allows to select statically linked or modular
enumeration/discovery method(s) from the list of existing methods or use
external module(s).

This patch also updates the currently existing enumeration/discovery
code to be used as a statically linked or modular method.

The corresponding configuration option is named "Basic
enumeration/discovery" method.  This is the only one configuration
option available today but new methods are expected to be introduced
after adoption of provided patches.

The second patch address a long time complaint of RapidIO subsystem
users regarding fabric enumeration/discovery start sequence.  Existing
implementation offers only a boot-time enumeration/discovery start which
requires synchronized boot of all endpoints in RapidIO network.  While
it works for small closed configurations with limited number of
endpoints, using this approach in systems with large number of endpoints
is quite challenging.

To eliminate requirement for synchronized start the second patch
introduces RapidIO enumeration/discovery start from user space.

For compatibility with the existing RapidIO subsystem implementation,
automatic boot time enumeration/discovery start can be configured in by
specifying "rio-scan.scan=1" command line parameter if statically linked
basic enumeration method is selected.

This patch:

Rework to implement RapidIO enumeration/discovery method selection
combined with ability to use enumeration/discovery as a kernel module.

This patch adds ability to introduce new RapidIO enumeration/discovery
methods using kernel configuration options.  Configuration option
mechanism allows to select statically linked or modular
enumeration/discovery method from the list of existing methods or use
external modules.  If a modular enumeration/discovery is selected each
RapidIO mport device can have its own method attached to it.

The existing enumeration/discovery code was updated to be used as
statically linked or modular method.  This configuration option is named
"Basic enumeration/discovery" method.

Several common routines have been moved from rio-scan.c to make them
available to other enumeration methods and reduce number of exported
symbols.

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Andre van Herk <andre.van.herk@Prodrive.nl>
Cc: Micha Nelissen <micha.nelissen@Prodrive.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-24 16:22:50 -07:00
Gernot Vormayr 585dc0c2f6 drivers/block/xsysace.c: fix id with missing port-number
If the port number is missing from the device-tree the device gets named
xs` instead of xsa.  This fixes the check for missing ids.

Tested on ml507 board.

Signed-off-by: Gernot Vormayr <gvormayr@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-05-24 16:22:50 -07:00
Olof Johansson f4ae176c62 Small set of fixes for 3.10:
- Fix build breakage in pinctrl driver when no other architecture is selected
   - Fix Mini X-plus device tree build
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Merge tag 'sunxi-fixes-for-3.10' of git://github.com/mripard/linux into fixes

From Maxime Ripard:
Small set of fixes for 3.10:
  - Fix build breakage in pinctrl driver when no other architecture is selected
  - Fix Mini X-plus device tree build

* tag 'sunxi-fixes-for-3.10' of git://github.com/mripard/linux:
  ARM: sunxi: select ARCH_REQUIRE_GPIOLIB
  ARM: sunxi: Fix Mini X-plus device tree build

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-05-24 15:50:28 -07:00
Dave Chinner 7ae077802c xfs: remote attribute lookups require the value length
When reading a remote attribute, to correctly calculate the length
of the data buffer for CRC enable filesystems, we need to know the
length of the attribute data. We get this information when we look
up the attribute, but we don't store it in the args structure along
with the other remote attr information we get from the lookup. Add
this information to the args structure so we can use it
appropriately.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

(cherry picked from commit e461fcb194)
2013-05-24 16:31:20 -05:00
Dave Chinner cf257abf02 xfs: xfs_attr_shortform_allfit() does not handle attr3 format.
xfstests generic/117 fails with:

XFS: Assertion failed: leaf->hdr.info.magic == cpu_to_be16(XFS_ATTR_LEAF_MAGIC)

indicating a function that does not handle the attr3 format
correctly. Fix it.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
(cherry picked from commit b38958d715)
2013-05-24 16:29:56 -05:00
Dave Chinner 7ced60cae4 xfs: xfs_da3_node_read_verify() doesn't handle XFS_ATTR3_LEAF_MAGIC
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

(cherry picked from commit 72916fb8cb)
2013-05-24 16:29:37 -05:00
Dave Chinner b17cb364db xfs: fix missing KM_NOFS tags to keep lockdep happy
There are several places where we use KM_SLEEP allocation contexts
and use the fact that they are called from transaction context to
add KM_NOFS where appropriate. Unfortunately, there are several
places where the code makes this assumption but can be called from
outside transaction context but with filesystem locks held. These
places need explicit KM_NOFS annotations to avoid lockdep
complaining about reclaim contexts.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

(cherry picked from commit ac14876cf9)
2013-05-24 16:29:15 -05:00
Helge Deller d96b51ec14 parisc: fix irq stack on UP and SMP
The logic to detect if the irq stack was already in use with
raw_spin_trylock() is wrong, because it will generate a "trylock failure
on UP" error message with CONFIG_SMP=n and CONFIG_DEBUG_SPINLOCK=y.

arch_spin_trylock() can't be used either since in the CONFIG_SMP=n case
no atomic protection is given and we are reentrant here. A mutex didn't
worked either and brings more overhead by turning off interrupts.

So, let's use the fastest path for parisc which is the ldcw instruction.

Counting how often the irq stack was used is pretty useless, so just
drop this piece of code.

Signed-off-by: Helge Deller <deller@gmx.de>
2013-05-24 23:29:01 +02:00
Dave Chinner 509e708a89 xfs: Don't reference the EFI after it is freed
Checking the EFI for whether it is being released from recovery
after we've already released the known active reference is a mistake
worthy of a brown paper bag. Fix the (now) obvious use after free
that it can cause.

Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

(cherry picked from commit 52c24ad39f)
2013-05-24 16:27:57 -05:00
Dave Chinner 7031d0e1c4 xfs: fix rounding in xfs_free_file_space
The offset passed into xfs_free_file_space() needs to be rounded
down to a certain size, but the rounding mask is built by a 32 bit
variable. Hence the mask will always mask off the upper 32 bits of
the offset and lead to incorrect writeback and invalidation ranges.

This is not actually exposed as a bug because we writeback and
invalidate from the rounded offset to the end of the file, and hence
the offset we are actually punching a hole out of will always be
covered by the code. This needs fixing, however, if we ever want to
use exact ranges for writeback/invalidation here...

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

(cherry picked from commit 28ca489c63)
2013-05-24 16:27:41 -05:00
Dave Chinner 480d7467e4 xfs: fix sub-page blocksize data integrity writes
FSX on 512 byte block size filesystems has been failing for some
time with corrupted data. The fault dates back to the change in
the writeback data integrity algorithm that uses a mark-and-sweep
approach to avoid data writeback livelocks.

Unfortunately, a side effect of this mark-and-sweep approach is that
each page will only be written once for a data integrity sync, and
there is a condition in writeback in XFS where a page may require
two writeback attempts to be fully written. As a result of the high
level change, we now only get a partial page writeback during the
integrity sync because the first pass through writeback clears the
mark left on the page index to tell writeback that the page needs
writeback....

The cause is writing a partial page in the clustering code. This can
happen when a mapping boundary falls in the middle of a page - we
end up writing back the first part of the page that the mapping
covers, but then never revisit the page to have the remainder mapped
and written.

The fix is simple - if the mapping boundary falls inside a page,
then simple abort clustering without touching the page. This means
that the next ->writepage entry that write_cache_pages() will make
is the page we aborted on, and xfs_vm_writepage() will map all
sections of the page correctly. This behaviour is also optimal for
non-data integrity writes, as it results in contiguous sequential
writeback of the file rather than missing small holes and having to
write them a "random" writes in a future pass.

With this fix, all the fsx tests in xfstests now pass on a 512 byte
block size filesystem on a 4k page machine.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

(cherry picked from commit 49b137cbbc)
2013-05-24 16:26:51 -05:00
Peter Huewe 2c2d32bed1 parisc/superio: Use module_pci_driver to register driver
Removing some boilerplate by using module_pci_driver instead of calling
register and unregister in the otherwise empty init/exit functions.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Helge Deller <deller@gmx.de>
2013-05-24 22:35:46 +02:00
John David Anglin b63a2bbc0b parisc: make interrupt and interruption stack allocation reentrant
The get_stack_use_cr30 and get_stack_use_r30 macros allocate a stack
frame for external interrupts and interruptions requiring a stack frame.
They are currently not reentrant in that they save register context
before the stack is set or adjusted.

I have observed a number of system crashes where there was clear
evidence of stack corruption during interrupt processing, and as a
result register corruption. Some interruptions can still occur during
interruption processing, however external interrupts are disabled and
data TLB misses don't occur for absolute accesses. So, it's not entirely
clear what triggers this issue. Also, if an interruption occurs when
Q=0, it is generally not possible to recover as the shadowed registers
are not copied.

The attached patch reworks the get_stack_use_cr30 and get_stack_use_r30
macros to allocate stack before doing register saves. The new code is a
couple of instructions shorter than the old implementation. Thus, it's
an improvement even if it doesn't fully resolve the stack corruption
issue. Based on limited testing, it improves SMP system stability.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
2013-05-24 22:35:36 +02:00
Helge Deller d0c3be806a parisc: show number of FPE and unaligned access handler calls in /proc/interrupts
Show number of floating point assistant and unaligned access fixup
handler in /proc/interrupts file.

Signed-off-by: Helge Deller <deller@gmx.de>
2013-05-24 22:35:26 +02:00
Helge Deller fbb46caa1b parisc: add additional parisc git tree to MAINTAINERS file
Signed-off-by: Helge Deller <deller@gmx.de>
2013-05-24 22:35:13 +02:00
Helge Deller d845b5fb36 parisc: use PAGE_SHIFT instead of hardcoded value 12 in pacache.S
additionally clean up some whitespaces & tabs.

Signed-off-by: Helge Deller <deller@gmx.de>
2013-05-24 22:30:28 +02:00
Helge Deller 949451b9b1 parisc: add rp5470 entry to machine database
Signed-off-by: Helge Deller <deller@gmx.de>
2013-05-24 22:30:20 +02:00
Helge Deller 70ef5578dd MPILIB: disable usage of floating point registers on parisc
The umul_ppmm() macro for parisc uses the xmpyu assembler statement
which does calculation via a floating point register.

But usage of floating point registers inside the Linux kernel are not
allowed and gcc will stop compilation due to the -mdisable-fpregs
compiler option.

Fix this by disabling the umul_ppmm() and udiv_qrnnd() macros. The
mpilib will then use the generic built-in implementations instead.

Signed-off-by: Helge Deller <deller@gmx.de>
2013-05-24 22:30:11 +02:00
Linus Torvalds 17fdfd0851 Masami Hiramatsu fixed another bug. This time returning a proper
result in event_enable_func(). After checking the return status
 of try_module_get(), it returned the status of try_module_get(). But
 try_module_get() returns 0 on failure, which is success for
 event_enable_func().
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Merge tag 'trace-fixes-v3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "Masami Hiramatsu fixed another bug.  This time returning a proper
  result in event_enable_func().  After checking the return status of
  try_module_get(), it returned the status of try_module_get().

  But try_module_get() returns 0 on failure, which is success for
  event_enable_func()"

* tag 'trace-fixes-v3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Return -EBUSY when event_enable_func() fails to get module
2013-05-24 10:46:55 -07:00
Linus Torvalds a8432588fc Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6
Pull CIFS fix from Steve French:
 "One cifs fix to merge now - fixes possible DFS oops (I expect to
  request a merge of 4 additional cifs fixes next week)"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: only set ops for inodes in I_NEW state
2013-05-24 10:45:59 -07:00
Olof Johansson 4a0cce791e One definition fix that can lead to mis-clock some
AT91 peripherals on SAMA5.
 Two DT related fixes.
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Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes

From Nicolas Ferre:
- One definition fix that can lead to mis-clock some AT91 peripherals on SAMA5.
- Two DT related fixes.

* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
  ARM: at91/sama5: fix incorrect PMC pcr div definition
  ARM: at91/dt: fix macb pinctrl_macb_rmii_mii_alt definition
  ARM: at91: at91sam9n12: move external irq declatation to DT

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-05-24 10:12:04 -07:00
Linus Torvalds 0e255f1c0c Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes
Pull gfs2 fixes from Steven Whitehouse:
 "This time there are just four fixes.  There are a couple of minor
  updates to the quota code, a fix for KConfig to ensure that only valid
  combinations including GFS2 can be built, and a fix for a typo
  affecting end i/o processing when writing the journal.

  Also, there is a temporary fix for a performance regression relating
  to block reservations and directories.  A longer fix will be applied
  in due course, but this deals with the most immediate problem for now"

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-fixes:
  GFS2: Fix typo in gfs2_log_end_write loop
  GFS2: fix DLM depends to fix build errors
  GFS2: Use single-block reservations for directories
  GFS2: two minor quota fixups
2013-05-24 08:58:53 -07:00
Linus Torvalds d4c2456a18 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fixes from Benjamin Herrenschmidt:
 "Some more P8 related bits, a bunch of fixes for our P7+/P8 HW crypto
  drivers, some added workarounds for those radeons that don't do proper
  64-bit MSIs and a couple of other trivialities by myself."

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/pseries: Make 32-bit MSI quirk work on systems lacking firmware support
  powerpc/powernv: Build a zImage.epapr
  powerpc: Make radeon 32-bit MSI quirk work on powernv
  powerpc: Context switch more PMU related SPRs
  powerpc/powernv: Fix condition for when to invalidate the TCE cache
  powerpc/pci: Fix bogus message at boot about empty memory resources
  powerpc: Fix TLB cleanup at boot on POWER8
  drivers/crypto/nx: Fixes for multiple races and issues
2013-05-24 08:57:38 -07:00
Linus Torvalds eb3d33900a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "It's been a while since my last pull request so quite a few fixes have
  piled up."

Indeed.

 1) Fix nf_{log,queue} compilation with PROC_FS disabled, from Pablo
    Neira Ayuso.

 2) Fix data corruption on some tg3 chips with TSO enabled, from Michael
    Chan.

 3) Fix double insertion of VLAN tags in be2net driver, from Sarveshwar
    Bandi.

 4) Don't have TCP's MD5 support pass > PAGE_SIZE page offsets in
    scatter-gather entries into the crypto layer, the crypto layer can't
    handle that.  From Eric Dumazet.

 5) Fix lockdep splat in 802.1Q MRP code, also from Eric Dumazet.

 6) Fix OOPS in netfilter log module when called from conntrack, from
    Hans Schillstrom.

 7) FEC driver needs to use netif_tx_{lock,unlock}_bh() rather than the
    non-BH disabling variants.  From Fabio Estevam.

 8) TCP GSO can generate out-of-order packets, fix from Eric Dumazet.

 9) vxlan driver doesn't update 'used' field of fdb entries when it
    should, from Sridhar Samudrala.

10) ipv6 should use kzalloc() to allocate inet6 socket cork options,
    otherwise we can OOPS in ip6_cork_release().  From Eric Dumazet.

11) Fix races in bonding set mode, from Nikolay Aleksandrov.

12) Fix checksum generation regression added by "r8169: fix 8168evl
    frame padding.", from Francois Romieu.

13) ip_gre can look at stale SKB data pointer, fix from Eric Dumazet.

14) Fix checksum handling when GSO is enabled in bnx2x driver with
    certain chips, from Yuval Mintz.

15) Fix double free in batman-adv, from Martin Hundebøll.

16) Fix device startup synchronization with firmware in tg3 driver, from
    Nithin Sujit.

17) perf networking dropmonitor doesn't work at all due to mixed up
    trace parameter ordering, from Ben Hutchings.

18) Fix proportional rate reduction handling in tcp_ack(), from Nandita
    Dukkipati.

19) IPSEC layer doesn't return an error when a valid state is detected,
    causing an OOPS.  Fix from Timo Teräs.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (85 commits)
  be2net: bug fix on returning an invalid nic descriptor
  tcp: xps: fix reordering issues
  net: Revert unused variable changes.
  xfrm: properly handle invalid states as an error
  virtio_net: enable napi for all possible queues during open
  tcp: bug fix in proportional rate reduction.
  net: ethernet: sun: drop unused variable
  net: ethernet: korina: drop unused variable
  net: ethernet: apple: drop unused variable
  qmi_wwan: Added support for Cinterion's PLxx WWAN Interface
  perf: net_dropmonitor: Remove progress indicator
  perf: net_dropmonitor: Use bisection in symbol lookup
  perf: net_dropmonitor: Do not assume ordering of dictionaries
  perf: net_dropmonitor: Fix symbol-relative addresses
  perf: net_dropmonitor: Fix trace parameter order
  net: fec: use a more proper compatible string for MVF type device
  qlcnic: Fix updating netdev->features
  qlcnic: remove netdev->trans_start updates within the driver
  qlcnic: Return proper error codes from probe failure paths
  tg3: Update version to 3.132
  ...
2013-05-24 08:27:32 -07:00
Steven Whitehouse e97e548ba8 GFS2: Fix typo in gfs2_log_end_write loop
There was a missing _all in this loop iterator

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2013-05-24 13:48:09 +01:00
Randy Dunlap 75f96ce6e7 GFS2: fix DLM depends to fix build errors
Fix build errors by correcting DLM dependencies in GFS2.
Build errors happen when CONFIG_GFS2_FS_LOCKING_DLM=y and CONFIG_DLM=m:

fs/built-in.o: In function `gfs2_lock':
file.c:(.text+0xc7abd): undefined reference to `dlm_posix_get'
file.c:(.text+0xc7ad0): undefined reference to `dlm_posix_unlock'
file.c:(.text+0xc7ad9): undefined reference to `dlm_posix_lock'
fs/built-in.o: In function `gdlm_unmount':
lock_dlm.c:(.text+0xd6e5b): undefined reference to `dlm_release_lockspace'
fs/built-in.o: In function `sync_unlock':
lock_dlm.c:(.text+0xd6e9e): undefined reference to `dlm_unlock'
fs/built-in.o: In function `sync_lock':
lock_dlm.c:(.text+0xd6fb6): undefined reference to `dlm_lock'
fs/built-in.o: In function `gdlm_put_lock':
lock_dlm.c:(.text+0xd7238): undefined reference to `dlm_unlock'
fs/built-in.o: In function `gdlm_mount':
lock_dlm.c:(.text+0xd753e): undefined reference to `dlm_new_lockspace'
lock_dlm.c:(.text+0xd79d3): undefined reference to `dlm_release_lockspace'
fs/built-in.o: In function `gdlm_lock':
lock_dlm.c:(.text+0xd8179): undefined reference to `dlm_lock'
fs/built-in.o: In function `gdlm_cancel':
lock_dlm.c:(.text+0xd6b22): undefined reference to `dlm_unlock'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2013-05-24 13:47:53 +01:00
Bob Peterson af21ca8ed5 GFS2: Use single-block reservations for directories
This patch changes the multi-block allocation code, such that
directory inodes only get a single block reserved in the bitmap.
That way, the bitmaps are more tightly packed together, and there
are fewer spans of free blocks for in-use block reservations.
This means it takes less time to find a free span of blocks in the
bitmap, which speeds things up. This increases the performance of
some workloads by almost 2X. In Nate's mockup.py script (which does
(1) create dir, (2) create dir in dir, (3) create file in that dir)
the test executes in 23 steps rather than 43 steps, a 47%
performance improvement.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2013-05-24 13:47:32 +01:00
Bob Peterson 37f715774e GFS2: two minor quota fixups
This patch fixes two regression problems that Abhi found in the
GFS2 quota code.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2013-05-24 13:47:13 +01:00
Josh Wu 144ea15e4f ARM: at91/sama5: fix incorrect PMC pcr div definition
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-05-24 10:53:51 +02:00
Boris BREZILLON f6d35d67d0 ARM: at91/dt: fix macb pinctrl_macb_rmii_mii_alt definition
The PA24 pin is wrongly assigned to peripheral B.
In the current config there is 2 ETX3 pins (PA11 and PA24) and
no ETXER pin (PA22).

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable <stable@vger.kernel.org> # 3.8+
2013-05-24 10:53:51 +02:00
Jean-Christophe PLAGNIOL-VILLARD 029efddab6 ARM: at91: at91sam9n12: move external irq declatation to DT
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-05-24 10:53:50 +02:00
Brian King f1dd153121 powerpc/pseries: Make 32-bit MSI quirk work on systems lacking firmware support
Recent commit e61133dda4 added support
for a new firmware feature to force an adapter to use 32 bit MSIs.
However, this firmware is not available for all systems. The hack below
allows devices needing 32 bit MSIs to work on these systems as well.
It is careful to only enable this on Gen2 slots, which should limit
this to configurations where this hack is needed and tested to work.

[Small change to factor out the hack into a separate function -- BenH]

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-24 18:16:54 +10:00
Benjamin Herrenschmidt 83920c498e powerpc/powernv: Build a zImage.epapr
The zImage.epapr wrapper allows to use zImages when booting via a flat
device-tree which can be used on powernv.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-24 18:13:46 +10:00
Benjamin Herrenschmidt b72c1f6514 powerpc: Make radeon 32-bit MSI quirk work on powernv
This moves the quirk itself to pci_64.c as to get built on all ppc64
platforms (the only ones with a pci_dn), factors the two implementations
of get_pdn() into a single pci_get_dn() and use the quirk to do 32-bit
MSIs on IODA based powernv platforms.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-24 18:13:45 +10:00
Michael Ellerman 59affcd3e4 powerpc: Context switch more PMU related SPRs
In commit 9353374 "Context switch the new EBB SPRs" we added support for
context switching some new EBB SPRs. However despite four of us signing
off on that patch we missed some. To be fair these are not actually new
SPRs, but they are now potentially user accessible so need to be context
switched.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-24 18:13:45 +10:00
Benjamin Herrenschmidt 605e44d6e6 powerpc/powernv: Fix condition for when to invalidate the TCE cache
We use two flags, one to indicate an invalidation is needed after
creating a new entry and one to indicate an invalidation is needed
after removing an entry. However we were testing the wrong flag
in the remove case.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-24 18:13:44 +10:00
Benjamin Herrenschmidt bee7dd9c5f powerpc/pci: Fix bogus message at boot about empty memory resources
The message is only meant to be displayed if resource 0 is empty,
but was displayed if any is.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-24 18:13:44 +10:00
Benjamin Herrenschmidt 8fc1f5d7ef powerpc: Fix TLB cleanup at boot on POWER8
The TLB has 512 congruence classes (2048 entries 4 way set associative)
while P7 had 128

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-24 18:13:44 +10:00
Kent Yoder 1ad936e850 drivers/crypto/nx: Fixes for multiple races and issues
Fixes a race on driver init with registering algorithms where the
driver status flag wasn't being set before self testing started.

  Added the cra_alignmask field for CBC and ECB modes.

  Fixed a bug in GCM where AES block size was being used instead of
authsize.

  Removed use of blkcipher_walk routines for scatterlist processing.
Corner cases in the code prevent us from processing an entire
scatterlist at a time and walking the buffers in block sized chunks
turns out to be unecessary anyway.

  Fixed off-by-one error in saving off extra data in the sha code.

  Fixed accounting error for number of bytes processed in the sha code.

Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-05-24 18:11:10 +10:00
Wei Yang 950e2958a5 be2net: bug fix on returning an invalid nic descriptor
In function be_get_nic_desc(), it will go through the descriptor array
returned from f/w. By comparing the desc_type field, it determines whether
there is a nic descriptor in the array or not. In the case of no nic
descriptor, this function should return NULL.

The code may return an invalide descriptor, when there is no nic descriptor
in the array and the desc_count is less than MAX_RESOURCE_DESC. In this case,
even there is no nic descriptor, it will still return the lase descriptor
since the i doesn't equal to MAX_RESOURCE_DESC.

This patch fix this issue by returning the descriptor when find it and return
NULL for other cases.

Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Reviewed-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Reviewed-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Acked-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-23 18:56:40 -07:00
Eric Dumazet 547669d483 tcp: xps: fix reordering issues
commit 3853b5841c ("xps: Improvements in TX queue selection")
introduced ooo_okay flag, but the condition to set it is slightly wrong.

In our traces, we have seen ACK packets being received out of order,
and RST packets sent in response.

We should test if we have any packets still in host queue.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Tom Herbert <therbert@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-23 18:29:20 -07:00
Linus Torvalds 514e250f67 GPIO fixes for the v3.10 series:
- An OMAP fix that makes ethernet work again.
 - Fix for build problem when building the MCP23S08 driver
   as module.
 - IRQ conflicts in the Langwell driver.
 - Fix IRQ coherency issues in the MXS driver.
 - Return correct errorcode on errorpath when removing
   GPIO chips.
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Merge tag 'gpio-fixes-v3.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 - An OMAP fix that makes ethernet work again.
 - Fix for build problem when building the MCP23S08 driver as module.
 - IRQ conflicts in the Langwell driver.
 - Fix IRQ coherency issues in the MXS driver.
 - Return correct errorcode on errorpath when removing GPIO chips.

* tag 'gpio-fixes-v3.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: Don't override the error code in probe error handling
  gpio: mxs: Use set and clear capabilities of the gpio controller
  gpio-langwell: fix irq conflicts when DT is not used
  gpio: mcp23s08: Fix build error when CONFIG_SPI_MASTER=y && CONFIG_I2C=m
  gpio/omap: ensure gpio context is initialised
2013-05-23 18:24:10 -07:00
Chuck Lever 83c168bf80 NFS: Fix SETCLIENTID fallback if GSS is not available
Commit 79d852bf "NFS: Retry SETCLIENTID with AUTH_SYS instead of
AUTH_NONE" did not take into account commit 23631227 "NFSv4: Fix the
fallback to AUTH_NULL if krb5i is not available".

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2013-05-23 18:50:40 -04:00
Linus Torvalds b91fd4d5aa PCI updates for v3.10:
Moorestown
       Revert "x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0"
   Hotplug
       PCI: acpiphp: Re-enumerate devices when host bridge receives Bus Check
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Merge tag 'pci-v3.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Here are some more fixes for v3.10.  The Moorestown update broke Intel
  Medfield devices, so I reverted it.  The acpiphp change fixes a
  regression: we broke hotplug notifications to host bridges when we
  split acpiphp into the host-bridge related part and the
  endpoint-related part.

  Moorestown
      Revert "x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0"
  Hotplug
      PCI: acpiphp: Re-enumerate devices when host bridge receives Bus Check"

* tag 'pci-v3.10-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  Revert "x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0"
  PCI: acpiphp: Re-enumerate devices when host bridge receives Bus Check
2013-05-23 13:50:53 -07:00
Linus Torvalds 4c0eec03b1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
 "A few fixups to Wacom and eGalax touchscreen driver"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: wacom - add an eraser to DTH2242/DTK2241
  Input: wacom - add a few new styli for Cintiq series
  Input: wacom - add three new display tablets
  Input: egalax_ts - ABS_MT_POSITION_Y not reported well
2013-05-23 13:50:03 -07:00
David S. Miller 7a1a0cbfeb net: Revert unused variable changes.
This reverts commits:

c573972c11
1a5904342c
da2e2c2149

They were meant for net-next not net.

Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-23 12:15:32 -07:00
Linus Torvalds d979556257 tty/serial fixes for 3.10-rc2
Here are some tty / serial driver fixes for 3.10-rc2.
 
 Nothing huge, although the rocket driver fix looks large, it's just
 moving the code around to fix the reported build issues in it.  Other
 than that, this has the fix for the of-reported lockdep warning from the
 vt layer, as well as some other needed bugfixes.
 
 All of these have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg Kroah-Hartman:
 "Here are some tty / serial driver fixes for 3.10-rc2.

  Nothing huge, although the rocket driver fix looks large, it's just
  moving the code around to fix the reported build issues in it.  Other
  than that, this has the fix for the of-reported lockdep warning from
  the vt layer, as well as some other needed bugfixes.

  All of these have been in linux-next for a while"

* tag 'tty-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: mxser: Fix build warning introduced by dfc7b837c7 (Re: linux-next: build warning after merge of the tty.current tree)
  tty: mxser: fix usage of opmode_ioaddr
  serial: 8250_dw: add ACPI ID for Intel BayTrail
  TTY: Fix tty miss restart after we turn off flow-control
  tty/vt: Fix vc_deallocate() lock order
  TTY: ehv_bytechan: add missing platform_driver_unregister() when module exit
  TTY: rocket, fix more no-PCI warnings
  serial: mcf: missing uart_unregister_driver() on error in mcf_init()
  tty: serial: mpc5xxx: fix error handing in mpc52xx_uart_init()
  serial: samsung: add missing platform_driver_unregister() when module exit
  serial: pl011: protect attribute read from NULL platform data struct
  tty: nwpserial: Pass correct pointer to free_irq()
  serial: 8250_dw: Add valid clk pointer check
2013-05-23 09:28:34 -07:00
Linus Torvalds 388c289697 Staging driver fixes for 3.10-rc2
Here are some staging tree driver fixes for 3.10-rc2
 
 The drivers/iio/ changes are here as they are still tied into
 drivers/staging/iio/.
 
 Nothing major, just a number of small bugfixes, and a larger documentation
 update for the ramster code.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg Kroah-Hartman:
 "Here are some staging tree driver fixes for 3.10-rc2

  The drivers/iio/ changes are here as they are still tied into
  drivers/staging/iio/.

  Nothing major, just a number of small bugfixes, and a larger
  documentation update for the ramster code."

* tag 'staging-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (28 commits)
  staging: dwc2: remove compile warning for USB_DWC2_TRACK_MISSED_SOFS
  iio: exynos_adc: fix wrong structure extration in suspend and resume
  iio:common:st: added disable function after read info raw data
  iio: dac: Fix build error when CONFIG_SPI_MASTER=y && CONFIG_I2C=m
  staging:iio:light:tsl2x7x: fix the error handling in tsl2x7x_probe()
  staging/iio/mxs-lradc: fix preenable for multiple buffers
  staging: imx-drm: imx-tve: Check the return value of 'regulator_enable()'
  staging: video: imx: Select VIDEOMODE_HELPERS for parallel display
  staging: ramster: add how-to document
  staging: dwc2: Fix dma-enabled platform devices using a default dma_mask
  staging: vt6656: [bug] Fix missing spin lock in iwctl_siwpower.
  staging: Swap zram and zsmalloc in Kconfig
  staging: android: logger: use kuid_t instead of uid_t
  staging: zcache: Fix incorrect module_param_array types
  staging/solo6x10: depend on CONFIG_FONTS
  staging/drm: imx: add missing dependencies
  staging: ste_rmi4: Suppress 'ignoring return value of ‘regulator_enable()' warning
  staging: sep: fix driver build and kconfig
  staging: nvec: cleanup childs on remove
  staging: nvec: implement unregistering of notifiers
  ...
2013-05-23 09:27:49 -07:00
Linus Torvalds c7153d0643 Driver core fixes for 3.10-rc2
Here are 3 tiny driver core fixes for 3.10-rc2.
 
 A needed symbol export, a change to make it easier to track down
 offending sysfs files with incorrect attributes, and a klist bugfix.
 
 All have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg Kroah-Hartman:
 "Here are 3 tiny driver core fixes for 3.10-rc2.

  A needed symbol export, a change to make it easier to track down
  offending sysfs files with incorrect attributes, and a klist bugfix.

  All have been in linux-next for a while"

* tag 'driver-core-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  klist: del waiter from klist_remove_waiters before wakeup waitting process
  driver core: print sysfs attribute name when warning about bogus permissions
  driver core: export subsys_virtual_register
2013-05-23 09:27:08 -07:00
Linus Torvalds 5cc0c03823 char/misc driver fixes for 3.10-rc2
Here are some small char/misc driver fixes for 3.10-rc2.
 
 Nothing major here, just a number of fixes for things that people have
 reported, and a MAINTAINERS update for the recent changes for the hyperv
 files that went into 3.10-rc1.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg Kroah-Hartman:
 "Here are some small char/misc driver fixes for 3.10-rc2.

  Nothing major here, just a number of fixes for things that people have
  reported, and a MAINTAINERS update for the recent changes for the
  hyperv files that went into 3.10-rc1."

* tag 'char-misc-3.10-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  ttyprintk: Fix NULL pointer deref by setting tty_port ops after initializing port
  uio: UIO_DMEM_GENIRQ should depend on HAS_DMA
  MAINTAINERS: update Hyper-V file list
  mei: bus: Reset event_cb when disabling a device
  Drivers: hv: Fix a bug in get_vp_index()
  mei: fix out of array access to me clients array
  Char: lp, protect LPGETSTATUS with port_mutex
  dummy-irq: require the user to specify an IRQ number
2013-05-23 09:26:32 -07:00