Commit Graph

518928 Commits

Author SHA1 Message Date
Hauke Mehrtens
18c4342aa5 PCI: iproc: Directly add PCI resources
The struct iproc_pcie.resources member was pointing to a stack variable and
is invalid after the registration function returned.

Remove this pointer and add a parameter to the function.

Tested-by: Ray Jui <rjui@broadcom.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Ray Jui <rjui@broadcom.com>
2015-05-27 18:27:54 -05:00
Hauke Mehrtens
4785ffbdc9 PCI: iproc: Add BCMA PCIe driver
This driver adds support for the PCIe 2.0 controller found on the BCMA bus.
This controller can be found on (mostly) all Broadcom BCM470X / BCM5301X
ARM SoCs.

The driver found in the Broadcom SDK does some more stuff, like setting up
some DMA memory areas, chaining MPS and MRRS to 512 and also some PHY
changes like "improving" the PCIe jitter and doing some special
initialization for the 3rd PCIe port.

This was tested on a bcm4708 board with 2 PCIe ports and wireless cards
connected to them.

PCI_DOMAINS is needed by this driver, because normally there is more than
one PCIe controller and without PCI_DOMAINS only the first controller gets
registered.  This controller gets 6 IRQs; the last one is trigged by all
IRQ events.

[bhelgaas: fix "GPLv2" MODULE_LICENSE typo]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafał Miłecki <zajec5@gmail.com>
Acked-by: Ray Jui <rjui@broadcom.com.com>
2015-05-20 09:46:06 -05:00
Hauke Mehrtens
c1e02ceaf5 PCI: iproc: Allow override of device tree IRQ mapping function
The iProc core PCIe driver defaults to using of_irq_parse_and_map_pci() for
IRQ mapping.  Add iproc_pcie.map_irq so bus interfaces that don't use
device tree can override this by supplying their own IRQ mapping function.

[bhelgaas: changelog]
Posting: http://lkml.kernel.org/r/1431465781-10753-1-git-send-email-hauke@hauke-m.de
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Ray Jui <rjui@broadcom.com.com>
2015-05-20 09:19:40 -05:00
Linus Torvalds
5ebe6afaf0 Linux 4.1-rc2 2015-05-03 19:22:23 -07:00
Linus Torvalds
8663da2c09 Some miscellaneous bug fixes and some final on-disk and ABI changes
for ext4 encryption which provide better security and performance.
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Merge tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Some miscellaneous bug fixes and some final on-disk and ABI changes
  for ext4 encryption which provide better security and performance"

* tag 'for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix growing of tiny filesystems
  ext4: move check under lock scope to close a race.
  ext4: fix data corruption caused by unwritten and delayed extents
  ext4 crypto: remove duplicated encryption mode definitions
  ext4 crypto: do not select from EXT4_FS_ENCRYPTION
  ext4 crypto: add padding to filenames before encrypting
  ext4 crypto: simplify and speed up filename encryption
2015-05-03 18:23:53 -07:00
Linus Torvalds
101a6fd387 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
 "One intel fix, one rockchip fix, and a bunch of radeon fixes for some
  regressions from audio rework and vm stability"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/i915/chv: Implement WaDisableShadowRegForCpd
  drm/radeon: fix userptr return value checking (v2)
  drm/radeon: check new address before removing old one
  drm/radeon: reset BOs address after clearing it.
  drm/radeon: fix lockup when BOs aren't part of the VM on release
  drm/radeon: add SI DPM quirk for Sapphire R9 270 Dual-X 2G GDDR5
  drm/radeon: adjust pll when audio is not enabled
  drm/radeon: only enable audio streams if the monitor supports it
  drm/radeon: only mark audio as connected if the monitor supports it (v3)
  drm/radeon/audio: don't enable packets until the end
  drm/radeon: drop dce6_dp_enable
  drm/radeon: fix ordering of AVI packet setup
  drm/radeon: Use drm_calloc_ab for CS relocs
  drm/rockchip: fix error check when getting irq
  MAINTAINERS: add entry for Rockchip drm drivers
2015-05-03 18:15:48 -07:00
Dave Airlie
71aee81937 Merge tag 'drm-intel-fixes-2015-04-30' of git://anongit.freedesktop.org/drm-intel into drm-fixes
Just a single intel fix
* tag 'drm-intel-fixes-2015-04-30' of git://anongit.freedesktop.org/drm-intel:
  drm/i915/chv: Implement WaDisableShadowRegForCpd
2015-05-04 08:56:47 +10:00
Dave Airlie
df9ebeb2da Merge branch 'drm-next0420' of https://github.com/markyzq/kernel-drm-rockchip into drm-fixes
one fix and maintainers update
* 'drm-next0420' of https://github.com/markyzq/kernel-drm-rockchip:
  drm/rockchip: fix error check when getting irq
  MAINTAINERS: add entry for Rockchip drm drivers
2015-05-04 08:56:27 +10:00
Linus Torvalds
61f06db00e SCSI fixes on 20150503
This is three logical fixes (as 5 patches).  The 3ware class of drivers were
 causing an oops with multiqueue by tearing down the command mappings after
 completing the command (where the variables in the command used to tear down
 the mapping were no-longer valid). There's also a fix for the qnap iscsi
 target which was choking on us sending it commands that were too long and a
 fix for the reworked aha1542 allocating GFP_KERNEL under a lock.
 
 Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is three logical fixes (as 5 patches).

  The 3ware class of drivers were causing an oops with multiqueue by
  tearing down the command mappings after completing the command (where
  the variables in the command used to tear down the mapping were
  no-longer valid).  There's also a fix for the qnap iscsi target which
  was choking on us sending it commands that were too long and a fix for
  the reworked aha1542 allocating GFP_KERNEL under a lock"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  3w-9xxx: fix command completion race
  3w-xxxx: fix command completion race
  3w-sas: fix command completion race
  aha1542: Allocate memory before taking a lock
  SCSI: add 1024 max sectors black list flag
2015-05-03 13:22:32 -07:00
Linus Torvalds
3333222484 Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave dmaengine fixes from Vinod Koul:
 "Here are the fixes in dmaengine subsystem for rc2:

   - privatecnt fix for slave dma request API by Christopher

   - warn fix for PM ifdef in usb-dmac by Geert

   - fix hardware dependency for xgene by Jean"

* 'next' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: increment privatecnt when using dma_get_any_slave_channel
  dmaengine: xgene: Set hardware dependency
  dmaengine: usb-dmac: Protect PM-only functions to kill warning
2015-05-03 10:49:04 -07:00
Linus Torvalds
180d89f6ef powerpc fixes for 4.1 # 2
- Build fix for SMP=n in book3s_xics.c
 - Fix for Daniel's pci_controller_ops on powernv.
 - Revert the TM syscall abort patch for now.
 - CPU affinity fix from Nathan.
 - Two EEH fixes from Gavin.
 - Fix for CR corruption from Sam.
 - Selftest build fix.
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Merge tag 'powerpc-4.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

Pull powerpc fixes from Michael Ellerman:
 - build fix for SMP=n in book3s_xics.c
 - fix for Daniel's pci_controller_ops on powernv.
 - revert the TM syscall abort patch for now.
 - CPU affinity fix from Nathan.
 - two EEH fixes from Gavin.
 - fix for CR corruption from Sam.
 - selftest build fix.

* tag 'powerpc-4.1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux:
  powerpc/powernv: Restore non-volatile CRs after nap
  powerpc/eeh: Delay probing EEH device during hotplug
  powerpc/eeh: Fix race condition in pcibios_set_pcie_reset_state()
  powerpc/pseries: Correct cpu affinity for dlpar added cpus
  selftests/powerpc: Fix the pmu install rule
  Revert "powerpc/tm: Abort syscalls in active transactions"
  powerpc/powernv: Fix early pci_controller_ops loading.
  powerpc/kvm: Fix SMP=n build error in book3s_xics.c
2015-05-03 10:28:36 -07:00
Jan Kara
2c869b262a ext4: fix growing of tiny filesystems
The estimate of necessary transaction credits in ext4_flex_group_add()
is too pessimistic. It reserves credit for sb, resize inode, and resize
inode dindirect block for each group added in a flex group although they
are always the same block and thus it is enough to account them only
once. Also the number of modified GDT block is overestimated since we
fit EXT4_DESC_PER_BLOCK(sb) descriptors in one block.

Make the estimation more precise. That reduces number of requested
credits enough that we can grow 20 MB filesystem (which has 1 MB
journal, 79 reserved GDT blocks, and flex group size 16 by default).

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
2015-05-02 23:58:32 -04:00
Davide Italiano
280227a75b ext4: move check under lock scope to close a race.
fallocate() checks that the file is extent-based and returns
EOPNOTSUPP in case is not. Other tasks can convert from and to
indirect and extent so it's safe to check only after grabbing
the inode mutex.

Signed-off-by: Davide Italiano <dccitaliano@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2015-05-02 23:21:15 -04:00
Lukas Czerner
d2dc317d56 ext4: fix data corruption caused by unwritten and delayed extents
Currently it is possible to lose whole file system block worth of data
when we hit the specific interaction with unwritten and delayed extents
in status extent tree.

The problem is that when we insert delayed extent into extent status
tree the only way to get rid of it is when we write out delayed buffer.
However there is a limitation in the extent status tree implementation
so that when inserting unwritten extent should there be even a single
delayed block the whole unwritten extent would be marked as delayed.

At this point, there is no way to get rid of the delayed extents,
because there are no delayed buffers to write out. So when a we write
into said unwritten extent we will convert it to written, but it still
remains delayed.

When we try to write into that block later ext4_da_map_blocks() will set
the buffer new and delayed and map it to invalid block which causes
the rest of the block to be zeroed loosing already written data.

For now we can fix this by simply not allowing to set delayed status on
written extent in the extent status tree. Also add WARN_ON() to make
sure that we notice if this happens in the future.

This problem can be easily reproduced by running the following xfs_io.

xfs_io -f -c "pwrite -S 0xaa 4096 2048" \
          -c "falloc 0 131072" \
          -c "pwrite -S 0xbb 65536 2048" \
          -c "fsync" /mnt/test/fff

echo 3 > /proc/sys/vm/drop_caches
xfs_io -c "pwrite -S 0xdd 67584 2048" /mnt/test/fff

This can be theoretically also reproduced by at random by running fsx,
but it's not very reliable, though on machines with bigger page size
(like ppc) this can be seen more often (especially xfstest generic/127)

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
2015-05-02 21:36:55 -04:00
Chanho Park
9402bdcacd ext4 crypto: remove duplicated encryption mode definitions
This patch removes duplicated encryption modes which were already in
ext4.h. They were duplicated from commit 3edc18d and commit f542fb.

Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Michael Halcrow <mhalcrow@google.com>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-02 10:29:22 -04:00
Herbert Xu
fb63e5489f ext4 crypto: do not select from EXT4_FS_ENCRYPTION
This patch adds a tristate EXT4_ENCRYPTION to do the selections
for EXT4_FS_ENCRYPTION because selecting from a bool causes all
the selected options to be built-in, even if EXT4 itself is a
module.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-02 10:29:19 -04:00
Linus Torvalds
6c3c1eb3c3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:

 1) Receive packet length needs to be adjust by 2 on RX to accomodate
    the two padding bytes in altera_tse driver.  From Vlastimil Setka.

 2) If rx frame is dropped due to out of memory in macb driver, we leave
    the receive ring descriptors in an undefined state.  From Punnaiah
    Choudary Kalluri

 3) Some netlink subsystems erroneously signal NLM_F_MULTI.  That is
    only for dumps.  Fix from Nicolas Dichtel.

 4) Fix mis-use of raw rt->rt_pmtu value in ipv4, one must always go via
    the ipv4_mtu() helper.  From Herbert Xu.

 5) Fix null deref in bridge netfilter, and miscalculated lengths in
    jump/goto nf_tables verdicts.  From Florian Westphal.

 6) Unhash ping sockets properly.

 7) Software implementation of BPF divide did 64/32 rather than 64/64
    bit divide.  The JITs got it right.  Fix from Alexei Starovoitov.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (30 commits)
  ipv4: Missing sk_nulls_node_init() in ping_unhash().
  net: fec: Fix RGMII-ID mode
  net/mlx4_en: Schedule napi when RX buffers allocation fails
  netxen_nic: use spin_[un]lock_bh around tx_clean_lock
  net/mlx4_core: Fix unaligned accesses
  mlx4_en: Use correct loop cursor in error path.
  cxgb4: Fix MC1 memory offset calculation
  bnx2x: Delay during kdump load
  net: Fix Kernel Panic in bonding driver debugfs file: rlb_hash_table
  net: dsa: Fix scope of eeprom-length property
  net: macb: Fix race condition in driver when Rx frame is dropped
  hv_netvsc: Fix a bug in netvsc_start_xmit()
  altera_tse: Correct rx packet length
  mlx4: Fix tx ring affinity_mask creation
  tipc: fix problem with parallel link synchronization mechanism
  tipc: remove wrong use of NLM_F_MULTI
  bridge/nl: remove wrong use of NLM_F_MULTI
  bridge/mdb: remove wrong use of NLM_F_MULTI
  net: sched: act_connmark: don't zap skb->nfct
  trivial: net: systemport: bcmsysport.h: fix 0x0x prefix
  ...
2015-05-01 20:51:04 -07:00
Stefan Hajnoczi
e412d3a32b virtio: fix typo in vring_need_event() doc comment
Here the "other side" refers to the guest or host.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-01 20:46:32 -07:00
Rusty Russell
feda5f939e virtio: pass baton to Michael Tsirkin
With my job change kernel work will be "own time"; I'm keeping lguest
and modules (and the virtio standards work), but virtio kernel has to
go.

This makes it clear that Michael is in charge.  He's good, but having
me watch over his shoulder won't help.

Good luck Michael!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-01 20:46:32 -07:00
Linus Torvalds
6fa72720a6 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph RBD fix from Sage Weil.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  rbd: end I/O the entire obj_request on error
2015-05-01 20:35:39 -07:00
David S. Miller
a134f083e7 ipv4: Missing sk_nulls_node_init() in ping_unhash().
If we don't do that, then the poison value is left in the ->pprev
backlink.

This can cause crashes if we do a disconnect, followed by a connect().

Tested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reported-by: Wen Xu <hotdog3645@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-01 22:02:47 -04:00
Ilya Dryomov
082a75dad8 rbd: end I/O the entire obj_request on error
When we end I/O struct request with error, we need to pass
obj_request->length as @nr_bytes so that the entire obj_request worth
of bytes is completed.  Otherwise block layer ends up confused and we
trip on

    rbd_assert(more ^ (which == img_request->obj_request_count));

in rbd_img_obj_callback() due to more being true no matter what.  We
already do it in most cases but we are missing some, in particular
those where we don't even get a chance to submit any obj_requests, due
to an early -ENOMEM for example.

A number of obj_request->xferred assignments seem to be redundant but
I haven't touched any of obj_request->xferred stuff to keep this small
and isolated.

Cc: Alex Elder <elder@linaro.org>
Cc: stable@vger.kernel.org # 3.10+
Reported-by: Shawn Edwards <lesser.evil@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2015-05-01 16:44:30 -07:00
Theodore Ts'o
a44cd7a054 ext4 crypto: add padding to filenames before encrypting
This obscures the length of the filenames, to decrease the amount of
information leakage.  By default, we pad the filenames to the next 4
byte boundaries.  This costs nothing, since the directory entries are
aligned to 4 byte boundaries anyway.  Filenames can also be padded to
8, 16, or 32 bytes, which will consume more directory space.

Change-Id: Ibb7a0fb76d2c48e2061240a709358ff40b14f322
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-01 16:56:50 -04:00
Theodore Ts'o
5de0b4d0cd ext4 crypto: simplify and speed up filename encryption
Avoid using SHA-1 when calculating the user-visible filename when the
encryption key is available, and avoid decrypting lots of filenames
when searching for a directory entry in a directory block.

Change-Id: If4655f144784978ba0305b597bfa1c8d7bb69e63
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-05-01 16:56:45 -04:00
Linus Torvalds
64887b6882 Merge branch 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
 "A few more btrfs fixes.

  These range from corners Filipe found in the new free space cache
  writeback to a grab bag of fixes from the list"

* 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: btrfs_release_extent_buffer_page didn't free pages of dummy extent
  Btrfs: fill ->last_trans for delayed inode in btrfs_fill_inode.
  btrfs: unlock i_mutex after attempting to delete subvolume during send
  btrfs: check io_ctl_prepare_pages return in __btrfs_write_out_cache
  btrfs: fix race on ENOMEM in alloc_extent_buffer
  btrfs: handle ENOMEM in btrfs_alloc_tree_block
  Btrfs: fix find_free_dev_extent() malfunction in case device tree has hole
  Btrfs: don't check for delalloc_bytes in cache_save_setup
  Btrfs: fix deadlock when starting writeback of bg caches
  Btrfs: fix race between start dirty bg cache writeout and bg deletion
2015-05-01 07:46:21 -07:00
Linus Torvalds
036f351e25 arm64 fixes:
- Fix perf devicetree warnings at probe time
 - Fix memory leak in __dma_free()
 - Ensure DMA buffers are always zeroed
 - Show IRQ trigger in /proc/interrupts (for parity with ARM)
 - Implement byte and halfword access for smp_{load_acquire,store_release}
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Not too much here, but we've addressed a couple of nasty issues in the
  dma-mapping code as well as adding the halfword and byte variants of
  load_acquire/store_release following on from the CSD locking bug that
  you fixed in the core.

   - fix perf devicetree warnings at probe time

   - fix memory leak in __dma_free()

   - ensure DMA buffers are always zeroed

   - show IRQ trigger in /proc/interrupts (for parity with ARM)

   - implement byte and halfword access for smp_{load_acquire,store_release}"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: perf: Fix the pmu node name in warning message
  arm64: perf: don't warn about missing interrupt-affinity property for PPIs
  arm64: add missing PAGE_ALIGN() to __dma_free()
  arm64: dma-mapping: always clear allocated buffers
  ARM64: Enable CONFIG_GENERIC_IRQ_SHOW_LEVEL
  arm64: add missing data types in smp_load_acquire/smp_store_release
2015-05-01 07:44:32 -07:00
Sam Bobroff
0aab374709 powerpc/powernv: Restore non-volatile CRs after nap
Patches 7cba160ad "powernv/cpuidle: Redesign idle states management"
and 77b54e9f2 "powernv/powerpc: Add winkle support for offline cpus"
use non-volatile condition registers (cr2, cr3 and cr4) early in the system
reset interrupt handler (system_reset_pSeries()) before it has been determined
if state loss has occurred. If state loss has not occurred, control returns via
the power7_wakeup_noloss() path which does not restore those condition
registers, leaving them corrupted.

Fix this by restoring the condition registers in the power7_wakeup_noloss()
case.

This is apparent when running a KVM guest on hardware that does not
support winkle or sleep and the guest makes use of secondary threads. In
practice this means Power7 machines, though some early unreleased Power8
machines may also be susceptible.

The secondary CPUs are taken off line before the guest is started and
they call pnv_smp_cpu_kill_self(). This checks support for sleep
states (in this case there is no support) and power7_nap() is called.

When the CPU is woken, power7_nap() returns and because the CPU is
still off line, the main while loop executes again. The sleep states
support test is executed again, but because the tested values cannot
have changed, the compiler has optimized the test away and instead we
rely on the result of the first test, which has been left in cr3
and/or cr4. With the result overwritten, the wrong branch is taken and
power7_winkle() is called on a CPU that does not support it, leading
to it stalling.

Fixes: 7cba160ad7 ("powernv/cpuidle: Redesign idle states management")
Fixes: 77b54e9f21 ("powernv/powerpc: Add winkle support for offline cpus")
[mpe: Massage change log a bit more]
Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-05-01 16:55:11 +10:00
Gavin Shan
d91dafc02f powerpc/eeh: Delay probing EEH device during hotplug
Commit 1c509148b ("powerpc/eeh: Do probe on pci_dn") probes EEH
devices in early stage, which is reasonable to pSeries platform.
However, it's wrong for PowerNV platform because the PE# isn't
determined until the resources (IO and MMIO) are assigned to
PE in hotplug case. So we have to delay probing EEH devices
for PowerNV platform until the PE# is assigned.

Fixes: ff57b454dd ("powerpc/eeh: Do probe on pci_dn")
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-05-01 13:52:32 +10:00
Gavin Shan
1ae79b78bc powerpc/eeh: Fix race condition in pcibios_set_pcie_reset_state()
When asserting reset in pcibios_set_pcie_reset_state(), the PE
is enforced to (hardware) frozen state in order to drop unexpected
PCI transactions (except PCI config read/write) automatically by
hardware during reset, which would cause recursive EEH error.
However, the (software) frozen state EEH_PE_ISOLATED is missed.
When users get 0xFF from PCI config or MMIO read, EEH_PE_ISOLATED
is set in PE state retrival backend. Unfortunately, nobody (the
reset handler or the EEH recovery functinality in host) will clear
EEH_PE_ISOLATED when the PE has been passed through to guest.

The patch sets and clears EEH_PE_ISOLATED properly during reset
in function pcibios_set_pcie_reset_state() to fix the issue.

Fixes: 28158cd ("Enhance pcibios_set_pcie_reset_state()")
Reported-by: Carol L. Soto <clsoto@us.ibm.com>
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Tested-by: Carol L. Soto <clsoto@us.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-05-01 13:52:09 +10:00
Nathan Fontenot
f32393c943 powerpc/pseries: Correct cpu affinity for dlpar added cpus
The incorrect ordering of operations during cpu dlpar add results in invalid
affinity for the cpu being added. The ibm,associativity property in the
device tree is populated with all zeroes for the added cpu which results in
invalid affinity mappings and all cpus appear to belong to node 0.

This occurs because rtas configure-connector is called prior to making the
rtas set-indicator calls. Phyp does not assign affinity information
for a cpu until the rtas set-indicator calls are made to set the isolation
and allocation state.

Correct the order of operations to make the rtas set-indicator
calls (done in dlpar_acquire_drc) before calling rtas configure-connector.

Fixes: 1a8061c46c ("powerpc/pseries: Add kernel based CPU DLPAR handling")

Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-05-01 13:47:24 +10:00
Michael Ellerman
2fa30fe957 selftests/powerpc: Fix the pmu install rule
My patch to add install support for the powerpc selftests had a typo,
leading to the three tests in the pmu directory itself not being
installed.

Fixes: 6faeeea44b ("selftests: Add install support for the powerpc tests")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-05-01 13:00:26 +10:00
Linus Torvalds
4a152c3913 Power management and ACPI fixes for v4.1-rc2
- Fix for a regression in the cpuidle core introduced by one of
    the recent commits in the clockevents_notify() removal series
    that put a call to a function which had to be executed with
    disabled interrupts into a code path running with enabled
    interrupts (Rafael J Wysocki).
 
  - Fix for a build problem in ACPICA (with GCC 4.5) introduced by one
    of the recent ACPICA tools commits that added a duplicate typedef
    to one of the ACPICA's header files by mistake (Olaf Hering).
 
  - Fix for a regression in the ACPI SBS (Smart Battery Subsystem)
    driver introduced during the 3.18 development cycle causing the
    smart battery manager to be marked as not present when it should
    be marked as present (Chris Bainbridge).
 
 /
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Merge tag 'pm+acpi-4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI fixes from Rafael Wysocki:
 "Three regression fixes this time, one for a recent regression in the
  cpuidle core affecting multiple systems, one for an inadvertently
  added duplicate typedef in ACPICA that breaks compilation with GCC 4.5
  and one for an ACPI Smart Battery Subsystem driver regression
  introduced during the 3.18 cycle (stable-candidate).

  Specifics:

   - Fix for a regression in the cpuidle core introduced by one of the
     recent commits in the clockevents_notify() removal series that put
     a call to a function which had to be executed with disabled
     interrupts into a code path running with enabled interrupts (Rafael
     J Wysocki)

   - Fix for a build problem in ACPICA (with GCC 4.5) introduced by one
     of the recent ACPICA tools commits that added a duplicate typedef
     to one of the ACPICA's header files by mistake (Olaf Hering)

   - Fix for a regression in the ACPI SBS (Smart Battery Subsystem)
     driver introduced during the 3.18 development cycle causing the
     smart battery manager to be marked as not present when it should be
     marked as present (Chris Bainbridge)"

* tag 'pm+acpi-4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpuidle: Run tick_broadcast_exit() with disabled interrupts
  ACPI / SBS: Enable battery manager when present
  ACPICA: remove duplicate u8 typedef
2015-04-30 14:23:31 -07:00
Linus Torvalds
5a2e73b281 sound fixes for 4.1-rc2
One nice fix is Peter's patch to make the old good SB Audigy PCI to
 work with 32bit DMA instead of 31bit.  This allows the MIDI synth
 running on modern machines again.  Along with it, a few fixes for
 emu10k1 have merged.
 
 In ASoC side, there is one fix in the common code, but it's just
 trivial additions of static inline functions for CONFIG_PM=n. The rest
 are various device-specific small fixes.
 
 Last but not least, a few HD-audio fixes are included, as usual, too.
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Merge tag 'sound-4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "One nice fix is Peter's patch to make the old good SB Audigy PCI to
  work with 32bit DMA instead of 31bit.  This allows the MIDI synth
  running on modern machines again.  Along with it, a few fixes for
  emu10k1 have merged.

  In ASoC side, there is one fix in the common code, but it's just
  trivial additions of static inline functions for CONFIG_PM=n.  The
  rest are various device-specific small fixes.

  Last but not least, a few HD-audio fixes are included, as usual, too"

* tag 'sound-4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (23 commits)
  ASoC: rt5677: fixed wrong DMIC ref clock
  ALSA: emu10k1: Emu10k2 32 bit DMA mode
  ALSA: emux: Fix mutex deadlock in OSS emulation
  ASoC: Update email-id of Rajeev Kumar
  ASoC: rt5645: Fix mask for setting RT5645_DMIC_2_DP_GPIO12 bit
  ALSA: hda - Fix missing va_end() call in snd_hda_codec_pcm_new()
  ALSA: emux: Fix mutex deadlock at unloading
  ALSA: emu10k1: Fix card shortname string buffer overflow
  ALSA: hda - Add mute-LED mode control to Thinkpad
  ALSA: hda - Fix mute-LED fixed mode
  ALSA: hda - Fix click noise at start on Dell XPS13
  ASoC: rt5645: Add ACPI match ID
  ASoC: rt5677: add register patch for PLL
  ASoC: Intel: fix the makefile for atom code
  ASoC: dapm: Enable autodisable on SOC_DAPM_SINGLE_TLV_AUTODISABLE
  ASoC: add static inline funcs to fix a compiling issue
  ASoC: Intel: sst_byt: remove kfree for memory allocated with devm_kzalloc
  ASoC: samsung: s3c24xx-i2s: Fix return value check in s3c24xx_iis_dev_probe()
  ASoC: tfa9879: Fix return value check in tfa9879_i2c_probe()
  ASoC: fsl_ssi: Fix platform_get_irq() error handling
  ...
2015-04-30 14:00:18 -07:00
Markus Pargmann
e813bb2b95 net: fec: Fix RGMII-ID mode
RGMII-ID uses an internal delay within the transmitter or receiver. This
feature is phy specific. The rest of the communication is normal RGMII.

So the fec driver has to check for all RGMII modes, not only
'PHY_INTERFACE_MODE_RGMII'.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-30 16:48:53 -04:00
Ido Shamay
07841f9d94 net/mlx4_en: Schedule napi when RX buffers allocation fails
When system is out of memory, refilling of RX buffers fails while
the driver continue to pass the received packets to the kernel stack.
At some point, when all RX buffers deplete, driver may fall into a
sleep, and not recover when memory for new RX buffers is once again
availible. This is because hardware does not have valid descriptors,
so no interrupt will be generated for the driver to return to work
in napi context. Fix it by schedule the napi poll function from
stats_task delayed workqueue, as long as the allocations fail.

Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-30 16:47:50 -04:00
Tony Camuso
c232d8a8bb netxen_nic: use spin_[un]lock_bh around tx_clean_lock
While testing this driver with DEBUG_LOCKDEP and DEBUG_SPINLOCK
enabled did not produce any traces, it would be more prudent in the
case of tx_clean_lock to use spin_[un]lock_bh, since this lock is
manipulated in both the process and softirq contexts.

This patch was tested for functionality and regressions with netperf
and DEBUG_LOCKDEP and DEBUG_SPINLOCK enabled.

Signed-off-by: Tony Camuso <tcamuso@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-30 16:37:29 -04:00
David Ahern
17d5ceb6e4 net/mlx4_core: Fix unaligned accesses
Addresses the following kernel logs seen during boot:

Kernel unaligned access at TPC[100ee150] mlx4_QUERY_HCA+0x80/0x248 [mlx4_core]
Kernel unaligned access at TPC[100f071c] mlx4_QUERY_ADAPTER+0x100/0x12c [mlx4_core]
Kernel unaligned access at TPC[100f071c] mlx4_QUERY_ADAPTER+0x100/0x12c [mlx4_core]
Kernel unaligned access at TPC[100f071c] mlx4_QUERY_ADAPTER+0x100/0x12c [mlx4_core]
Kernel unaligned access at TPC[100f071c] mlx4_QUERY_ADAPTER+0x100/0x12c [mlx4_core]

Signed-off-by: David Ahern <david.ahern@oracle.com>
Acked-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-30 16:26:30 -04:00
Benjamin Poirier
f94813f3c1 mlx4_en: Use correct loop cursor in error path.
Signed-off-by: Benjamin Poirier <bpoirier@suse.de>
Fixes: 9e311e7 ("net/mlx4_en: Use affinity hint")
Acked-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-30 16:25:14 -04:00
Rafael J. Wysocki
50904a7ddd Merge branches 'acpica', 'acpi-battery' and 'pm-cpuidle' 2015-04-30 21:05:57 +02:00
Takashi Iwai
0ae3aba286 ASoC: Fixes for v4.1
A few fixes for v4.1, none earth shattering and mostly driver related
 except for one change to fix !PM builds for Intel platforms which is
 done by adding stubs in the core so other platforms don't run into the
 same issue.
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Merge tag 'asoc-v4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v4.1

A few fixes for v4.1, none earth shattering and mostly driver related
except for one change to fix !PM builds for Intel platforms which is
done by adding stubs in the core so other platforms don't run into the
same issue.
2015-04-30 19:08:06 +02:00
Linus Torvalds
9dbbe3cfc3 Remove from guest code the handling of task migration during a
pvclock read; instead use the correct protocol in KVM.
 
 This removes the need for task migration notifiers in core
 scheduler code.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm changes from Paolo Bonzini:
 "Remove from guest code the handling of task migration during a pvclock
  read; instead use the correct protocol in KVM.

  This removes the need for task migration notifiers in core scheduler
  code"

[ The scheduler people really hated the migration notifiers, so this was
  kind of required  - Linus ]

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  x86: pvclock: Really remove the sched notifier for cross-cpu migrations
  kvm: x86: fix kvmclock update protocol
2015-04-30 09:44:04 -07:00
Linus Torvalds
fb45f493c1 Fix 2 bugs in the request-based DM blk-mq support that was added during
the 4.1 merge.
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Merge tag 'dm-4.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper bugfixes from Mike Snitzer:
 "Fix two bugs in the request-based DM blk-mq support that was added
  during the 4.1 merge"

* tag 'dm-4.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm: fix free_rq_clone() NULL pointer when requeueing unmapped request
  dm: only initialize the request_queue once
2015-04-30 09:39:52 -07:00
David Howells
9c4249c8e0 modsign: change default key details
Change default key details to be more obviously unspecified.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-30 09:35:41 -07:00
Linus Torvalds
9263a06a58 TTY/Serial fixes for 4.1-rc2
Here are some small tty/serial driver fixes for 4.1-rc2.
 
 They include some minor fixes that resolve reported issues, and a new
 device quirk.
 
 All have been in linux-next succesfully.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
 "Here are some small tty/serial driver fixes for 4.1-rc2.

  They include some minor fixes that resolve reported issues, and a new
  device quirk.

  All have been in linux-next succesfully"

* tag 'tty-4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serial: 8250_pci: Add support for 16 port Exar boards
  serial: samsung: fix serial console break
  tty/serial: at91: maxburst was missing for dma transfers
  serial: of-serial: Remove device_type = "serial" registration
  serial: xilinx: Use platform_get_irq to get irq description structure
  serial: core: Fix kernel-doc build warnings
  tty: Re-add external interface for tty_set_termios()
2015-04-30 09:30:07 -07:00
Linus Torvalds
dcca8de0aa USB fixes for 4.2-rc1
Here are a number of small USB fixes for 4.2-rc2.  They revert one
 problem patch, fix some minor things, and add some new quirks for
 "broken" devices.
 
 All have been in linux-next successfully.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are a number of small USB fixes for 4.2-rc2.  They revert one
  problem patch, fix some minor things, and add some new quirks for
  "broken" devices.

  All have been in linux-next successfully"

* tag 'usb-4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  cdc-acm: prevent infinite loop when parsing CDC headers.
  Revert "usb: host: ehci-msm: Use devm_ioremap_resource instead of devm_ioremap"
  usb: chipidea: otg: remove mutex unlock and lock while stop and start role
  uas: Set max_sectors_240 quirk for ASM1053 devices
  uas: Add US_FL_MAX_SECTORS_240 flag
  uas: Allow uas_use_uas_driver to return usb-storage flags
2015-04-30 09:08:53 -07:00
Linus Torvalds
73be174cf5 SH Drivers Updates for v4.1
* Remove test for now unsupported sh7372 SoC
 * Disable PM runtime for multi-platform r8a73a4 and sh73a0 SoCs with genpd
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Merge tag 'renesas-sh-drivers-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas

Pull SH driver updates from Simon Horman:

 - remove test for now unsupported sh7372 SoC

 - disable PM runtime for multi-platform r8a73a4 and sh73a0 SoCs with
   genpd

* tag 'renesas-sh-drivers-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  drivers: sh: Remove test for now unsupported sh7372
  drivers: sh: Disable PM runtime for multi-platform r8a73a4 with genpd
  drivers: sh: Disable PM runtime for multi-platform sh73a0 with genpd
2015-04-30 09:07:26 -07:00
Mike Snitzer
aa6df8dd28 dm: fix free_rq_clone() NULL pointer when requeueing unmapped request
Commit 022333427a ("dm: optimize dm_mq_queue_rq to _not_ use kthread if
using pure blk-mq") mistakenly removed free_rq_clone()'s clone->q check
before testing clone->q->mq_ops.  It was an oversight to discontinue
that check for 1 of the 2 use-cases for free_rq_clone():
1) free_rq_clone() called when an unmapped original request is requeued
2) free_rq_clone() called in the request-based IO completion path

The clone->q check made sense for case #1 but not for #2.  However, we
cannot just reinstate the check as it'd mask a serious bug in the IO
completion case #2 -- no in-flight request should have an uninitialized
request_queue (basic block layer refcounting _should_ ensure this).

The NULL pointer seen for case #1 is detailed here:
https://www.redhat.com/archives/dm-devel/2015-April/msg00160.html

Fix this free_rq_clone() NULL pointer by simply checking if the
mapped_device's type is DM_TYPE_MQ_REQUEST_BASED (clone's queue is
blk-mq) rather than checking clone->q->mq_ops.  This avoids the need to
dereference clone->q, but a WARN_ON_ONCE is added to let us know if an
uninitialized clone request is being completed.

Reported-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-04-30 10:25:21 -04:00
Christoph Hellwig
3e6180f0c8 dm: only initialize the request_queue once
Commit bfebd1cdb4 ("dm: add full blk-mq support to request-based DM")
didn't properly account for the need to short-circuit re-initializing
DM's blk-mq request_queue if it was already initialized.

Otherwise, reloading a blk-mq request-based DM table (either manually
or via multipathd) resulted in errors, see:
 https://www.redhat.com/archives/dm-devel/2015-April/msg00132.html

Fix is to only initialize the request_queue on the initial table load
(when the mapped_device type is assigned).

This is better than having dm_init_request_based_blk_mq_queue() return
early if the queue was already initialized because it elevates the
constraint to a more meaningful location in DM core.  As such the
pre-existing early return in dm_init_request_based_queue() can now be
removed.

Fixes: bfebd1cdb4 ("dm: add full blk-mq support to request-based DM")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2015-04-30 10:25:21 -04:00
Suzuki K. Poulose
8291fd04d8 arm64: perf: Fix the pmu node name in warning message
With commit d5efd9cc9c ("arm64: pmu: add support for interrupt-affinity
property"), we print a warning when we find a PMU SPI with a missing
missing interrupt-affinity property in a pmu node. Unfortunately, we
pass the wrong (NULL) device node to of_node_full_name, resulting in
unhelpful messages such as:

 hw perfevents: Failed to parse <no-node>/interrupt-affinity[0]

This patch fixes the name to that of the pmu node.

Fixes: d5efd9cc9c (arm64: pmu: add support for interrupt-affinity property)
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-04-30 12:11:30 +01:00
Will Deacon
d795ef9aa8 arm64: perf: don't warn about missing interrupt-affinity property for PPIs
PPIs are affine by nature, so the interrupt-affinity property is not
used and therefore we shouldn't print a warning in its absence.

Reported-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-04-30 12:11:23 +01:00