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into queue
* 'kvm-arm-for-3.10' of git://github.com/columbia/linux-kvm-arm:
ARM: KVM: iterate over all CPUs for CPU compatibility check
KVM: ARM: Fix spelling in error message
ARM: KVM: define KVM_ARM_MAX_VCPUS unconditionally
KVM: ARM: Fix API documentation for ONE_REG encoding
ARM: KVM: promote vfp_host pointer to generic host cpu context
ARM: KVM: add architecture specific hook for capabilities
ARM: KVM: perform HYP initilization for hotplugged CPUs
ARM: KVM: switch to a dual-step HYP init code
ARM: KVM: rework HYP page table freeing
ARM: KVM: enforce maximum size for identity mapped code
ARM: KVM: move to a KVM provided HYP idmap
ARM: KVM: fix HYP mapping limitations around zero
ARM: KVM: simplify HYP mapping population
ARM: KVM: arch_timer: use symbolic constants
ARM: KVM: add support for minimal host vs guest profiling
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Pull pstore update from Anton Vorontsov:
- A new platform data parameter to specify ECC configuration;
- Rounding fixup to not waste memory in ecc_blocks;
- Restore ECC information printouts;
- A small code cleanup: use kmemdup where appropriate.
* tag 'for-v3.10' of git://git.infradead.org/users/cbou/linux-pstore:
pstore/ram: Restore ecc information block
pstore/ram: Allow specifying ecc parameters in platform data
pstore/ram: Include ecc_size when calculating ecc_block
pstore: Replace calls to kmalloc and memcpy with kmemdup
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Simplify the memory detection code a bit by removing the CHUNK_OLDMEM
and CHUNK_CRASHK memory types.
They are not needed. Everything that is needed is a mechanism to
insert holes into the detected memory.
Reviewed-by: Michael Holzheu <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
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Add a notifier for kvm to get control before a page table entry is
invalidated. The notifier is only called for ptes of an address space
with pgstes that have been explicitly marked to require notification.
Kvm will use this to get control before prefix pages of virtual CPU
are unmapped.
Signed-off-by: Martin Schwidefsky <[email protected]>
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We can step on WARN_ON_ONCE() in sem_getref() if a semaphore is removed
just as we are about to call sem_getref() from semctl_main(); results
are not pretty.
We should fail with -EIDRM, same as if IPC_RM happened while we'd been
doing allocation there. This also expands sem_getref() at its only
callsite (and fixed there), while sem_getref_and_unlock() is simply
killed off - it has no callers at all.
Signed-off-by: Al Viro <[email protected]>
Acked-by: Davidlohr Bueso <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Pull drm updates from Dave Airlie:
"This is the main drm pull request for 3.10.
Wierd bits:
- OMAP drm changes required OMAP dss changes, in drivers/video, so I
took them in here.
- one more fbcon fix for font handover
- VT switch avoidance in pm code
- scatterlist helpers for gpu drivers - have acks from akpm
Highlights:
- qxl kms driver - driver for the spice qxl virtual GPU
Nouveau:
- fermi/kepler VRAM compression
- GK110/nvf0 modesetting support.
Tegra:
- host1x core merged with 2D engine support
i915:
- vt switchless resume
- more valleyview support
- vblank fixes
- modesetting pipe config rework
radeon:
- UVD engine support
- SI chip tiling support
- GPU registers initialisation from golden values.
exynos:
- device tree changes
- fimc block support
Otherwise:
- bunches of fixes all over the place."
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (513 commits)
qxl: update to new idr interfaces.
drm/nouveau: fix build with nv50->nvc0
drm/radeon: fix handling of v6 power tables
drm/radeon: clarify family checks in pm table parsing
drm/radeon: consolidate UVD clock programming
drm/radeon: fix UPLL_REF_DIV_MASK definition
radeon: add bo tracking debugfs
drm/radeon: add new richland pci ids
drm/radeon: add some new SI PCI ids
drm/radeon: fix scratch reg handling for UVD fence
drm/radeon: allocate SA bo in the requested domain
drm/radeon: fix possible segfault when parsing pm tables
drm/radeon: fix endian bugs in atom_allocate_fb_scratch()
OMAPDSS: TFP410: return EPROBE_DEFER if the i2c adapter not found
OMAPDSS: VENC: Add error handling for venc_probe_pdata
OMAPDSS: HDMI: Add error handling for hdmi_probe_pdata
OMAPDSS: RFBI: Add error handling for rfbi_probe_pdata
OMAPDSS: DSI: Add error handling for dsi_probe_pdata
OMAPDSS: SDI: Add error handling for sdi_probe_pdata
OMAPDSS: DPI: Add error handling for dpi_probe_pdata
...
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With VMX, enable_irq_window can now return -EBUSY, in which case an
immediate exit shall be requested before entering the guest. Account for
this also in enable_nmi_window which uses enable_irq_window in absence
of vnmi support, e.g.
Reviewed-by: Paolo Bonzini <[email protected]>
Signed-off-by: Jan Kiszka <[email protected]>
Signed-off-by: Marcelo Tosatti <[email protected]>
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Signed-off-by: Dave Airlie <[email protected]>
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Merge the fixes for the server driver dirty update paths
* server-fixes:
drm/cirrus: deal with bo reserve fail in dirty update path
drm/ast: deal with bo reserve fail in dirty update path
drm/mgag200: deal with bo reserve fail in dirty update path
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git://gitorious.org/linux-omap-dss2/linux into drm-next
OMAPDSS fixes for 3.10:
* Compilation fix when DSI is disabled in Kconfig
* Basic deferred probe support to fix DT boot
* tag 'omapdss-for-3.10-fixes' of git://gitorious.org/linux-omap-dss2/linux:
OMAPDSS: TFP410: return EPROBE_DEFER if the i2c adapter not found
OMAPDSS: VENC: Add error handling for venc_probe_pdata
OMAPDSS: HDMI: Add error handling for hdmi_probe_pdata
OMAPDSS: RFBI: Add error handling for rfbi_probe_pdata
OMAPDSS: DSI: Add error handling for dsi_probe_pdata
OMAPDSS: SDI: Add error handling for sdi_probe_pdata
OMAPDSS: DPI: Add error handling for dpi_probe_pdata
OMAPDSS: VENC: use platform_driver_register()
OMAPDSS: HDMI: use platform_driver_register()
OMAPDSS: RFBI: use platform_driver_register()
OMAPDSS: DSI: use platform_driver_register()
OMAPDSS: SDI: use platform_driver_register()
OMAPDSS: DPI: use platform_driver_register()
OMAPFB: defer probe if no displays
OMAPFB: use module_platform_driver()
OMAPDSS: Makefile: move omapfb after panels
OMAPDSS: DPI: fix compilation if DSI not compiled in
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into drm-next
Just some fixes that have accumulated over the last couple of
weeks and some new PCI ids.
* 'drm-next-3.10-2' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: fix handling of v6 power tables
drm/radeon: clarify family checks in pm table parsing
drm/radeon: consolidate UVD clock programming
drm/radeon: fix UPLL_REF_DIV_MASK definition
radeon: add bo tracking debugfs
drm/radeon: add new richland pci ids
drm/radeon: add some new SI PCI ids
drm/radeon: fix scratch reg handling for UVD fence
drm/radeon: allocate SA bo in the requested domain
drm/radeon: fix possible segfault when parsing pm tables
drm/radeon: fix endian bugs in atom_allocate_fb_scratch()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"This fixes the cputime scaling overflow problems for good without
having bad 32-bit overhead, and gets rid of the div64_u64_rem() helper
as well."
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Revert "math64: New div64_u64_rem helper"
sched: Avoid prev->stime underflow
sched: Do not account bogus utime
sched: Avoid cputime scaling overflow
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Pull crypto update from Herbert Xu:
- XTS mode optimisation for twofish/cast6/camellia/aes on x86
- AVX2/x86_64 implementation for blowfish/twofish/serpent/camellia
- SSSE3/AVX/AVX2 optimisations for sha256/sha512
- Added driver for SAHARA2 crypto accelerator
- Fix for GMAC when used in non-IPsec secnarios
- Added generic CMAC implementation (including IPsec glue)
- IP update for crypto/atmel
- Support for more than one device in hwrng/timeriomem
- Added Broadcom BCM2835 RNG driver
- Misc fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (59 commits)
crypto: caam - fix job ring cleanup code
crypto: camellia - add AVX2/AES-NI/x86_64 assembler implementation of camellia cipher
crypto: serpent - add AVX2/x86_64 assembler implementation of serpent cipher
crypto: twofish - add AVX2/x86_64 assembler implementation of twofish cipher
crypto: blowfish - add AVX2/x86_64 implementation of blowfish cipher
crypto: tcrypt - add async cipher speed tests for blowfish
crypto: testmgr - extend camellia test-vectors for camellia-aesni/avx2
crypto: aesni_intel - fix Kconfig problem with CRYPTO_GLUE_HELPER_X86
crypto: aesni_intel - add more optimized XTS mode for x86-64
crypto: x86/camellia-aesni-avx - add more optimized XTS code
crypto: cast6-avx: use new optimized XTS code
crypto: x86/twofish-avx - use optimized XTS code
crypto: x86 - add more optimized XTS-mode for serpent-avx
xfrm: add rfc4494 AES-CMAC-96 support
crypto: add CMAC support to CryptoAPI
crypto: testmgr - add empty test vectors for null ciphers
crypto: testmgr - add AES GMAC test vectors
crypto: gcm - fix rfc4543 to handle async crypto correctly
crypto: gcm - make GMAC work when dst and src are different
hwrng: timeriomem - added devicetree hooks
...
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Pull xfs update from Ben Myers:
"For 3.10-rc1 we have a number of bug fixes and cleanups and a
currently experimental feature from David Chinner, CRCs protection for
metadata. CRCs are enabled by using mkfs.xfs to create a filesystem
with the feature bits set.
- numerous fixes for speculative preallocation
- don't verify buffers on IO errors
- rename of random32 to prandom32
- refactoring/rearrangement in xfs_bmap.c
- removal of unused m_inode_shrink in struct xfs_mount
- fix error handling of xfs_bufs and readahead
- quota driven preallocation throttling
- fix WARN_ON in xfs_vm_releasepage
- add ratelimited printk for different alert levels
- fix spurious forced shutdowns due to freed Extent Free Intents
- remove some obsolete XLOG_CIL_HARD_SPACE_LIMIT() macros
- remove some obsoleted comments
- (experimental) CRC support for metadata"
* tag 'for-linus-v3.10-rc1' of git://oss.sgi.com/xfs/xfs: (46 commits)
xfs: fix da node magic number mismatches
xfs: Remote attr validation fixes and optimisations
xfs: Teach dquot recovery about CONFIG_XFS_QUOTA
xfs: add metadata CRC documentation
xfs: implement extended feature masks
xfs: add CRC checks to the superblock
xfs: buffer type overruns blf_flags field
xfs: add buffer types to directory and attribute buffers
xfs: add CRC protection to remote attributes
xfs: split remote attribute code out
xfs: add CRCs to attr leaf blocks
xfs: add CRCs to dir2/da node blocks
xfs: shortform directory offsets change for dir3 format
xfs: add CRC checking to dir2 leaf blocks
xfs: add CRC checking to dir2 data blocks
xfs: add CRC checking to dir2 free blocks
xfs: add CRC checks to block format directory blocks
xfs: add CRC checks to remote symlinks
xfs: split out symlink code into it's own file.
xfs: add version 3 inode format with CRCs
...
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git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci
Pull ReportingBugs rewrite from Sarah Sharp:
"Here are the updates to ReportingBugs that were discussed and acked a
couple weeks ago. I've updated the fifth patch with your ack, as
requested"
* tag 'for-linus-docs-2012-05-02' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci:
Docs: Move ref to Frohwalt Egerer to end of REPORTING-BUGS
Docs: Add a tips section to REPORTING-BUGS.
Docs: Expectations for bug reporters and maintainers
Docs: Add info on supported kernels to REPORTING-BUGS.
Docs: Add "Gather info" section to REPORTING-BUGS.
Docs: Step-by-step directions for reporting bugs.
Trivial: docs: Remove six-space indentation in REPORTING-BUGS.
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
"Two regression fixes:
1. On 64 bits, we would set NX on non-NX-capable hardware (very rare
in 64-bit land, but a nonzero subset.)
2. Fix suspend/resume across kernel versions"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86-64, init: Do not set NX bits on non-NX capable hardware
x86, gdt, hibernate: Store/load GDT for hibernate path.
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl fixes from Linus Walleij:
"Two fixes to the pinctrl subsystem for v3.10:
- A quite apparent mutex fix in an untested codepath
- A compile warning fix in the plgpio driver"
* tag 'pinctrl-fixes-v3.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: fix mutex deadlock in get_pinctrl_dev_from_of_node()
pinctrl: plgpio: add CONFIG_PM_SLEEP to suspend/resume functions
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c changes from Wolfram Sang:
- an arbitration driver. While the driver is quite simple, it caused
discussion if we need additional arbitration on top of the one
specified in the I2C standard. Conclusion is that I accept a few
generic mechanisms, but not very specific ones.
- the core lost the detach_adapter() call. It has no users anymore and
was in the way for other cleanups. attach_adapter() is sadly still
there since there are users waiting to be converted.
- the core gained a bus recovery infrastructure. I2C defines a way to
recover if the data line is stalled. This mechanism is now in the
core and drivers can now pass some data to make use of it.
- bigger driver cleanups for designware, s3c2410
- removing superfluous refcounting from drivers
- removing Ben Dooks as second maintainer due to inactivity. Thanks
for all your work so far, Ben!
- bugfixes, feature additions, devicetree fixups, simplifications...
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (38 commits)
i2c: xiic: must always write 16-bit words to TX_FIFO
i2c: octeon: use HZ in timeout value
i2c: octeon: Fix i2c fail problem when a process is terminated by a signal
i2c: designware-pci: drop superfluous {get|put}_device
i2c: designware-plat: drop superfluous {get|put}_device
i2c: davinci: drop superfluous {get|put}_device
MAINTAINERS: Ben Dooks is inactive regarding I2C
i2c: mux: Add i2c-arb-gpio-challenge 'mux' driver
i2c: at91: convert to dma_request_slave_channel_compat()
i2c: mxs: do error checking and handling in PIO mode
i2c: mxs: remove races in PIO code
i2c-designware: switch to use runtime PM autosuspend
i2c-designware: use usleep_range() in the busy-loop
i2c-designware: enable/disable the controller properly
i2c-designware: use dynamic adapter numbering on Lynxpoint
i2c-designware-pci: use managed functions pcim_* and devm_*
i2c-designware-pci: use dev_err() instead of printk()
i2c-designware: move to managed functions (devm_*)
i2c: remove CONFIG_HOTPLUG ifdefs
i2c: s3c2410: Add SMBus emulation for block read
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull virtio & lguest updates from Rusty Russell:
"Lots of virtio work which wasn't quite ready for last merge window.
Plus I dived into lguest again, reworking the pagetable code so we can
move the switcher page: our fixmaps sometimes take more than 2MB now..."
Ugh. Annoying conflicts with the tcm_vhost -> vhost_scsi rename.
Hopefully correctly resolved.
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (57 commits)
caif_virtio: Remove bouncing email addresses
lguest: improve code readability in lg_cpu_start.
virtio-net: fill only rx queues which are being used
lguest: map Switcher below fixmap.
lguest: cache last cpu we ran on.
lguest: map Switcher text whenever we allocate a new pagetable.
lguest: don't share Switcher PTE pages between guests.
lguest: expost switcher_pages array (as lg_switcher_pages).
lguest: extract shadow PTE walking / allocating.
lguest: make check_gpte et. al return bool.
lguest: assume Switcher text is a single page.
lguest: rename switcher_page to switcher_pages.
lguest: remove RESERVE_MEM constant.
lguest: check vaddr not pgd for Switcher protection.
lguest: prepare to make SWITCHER_ADDR a variable.
virtio: console: replace EMFILE with EBUSY for already-open port
virtio-scsi: reset virtqueue affinity when doing cpu hotplug
virtio-scsi: introduce multiqueue support
virtio-scsi: push vq lock/unlock into virtscsi_vq_done
virtio-scsi: pass struct virtio_scsi to virtqueue completion function
...
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Pull vfio updates from Alex Williamson:
"Changes include extension to support PCI AER notification to
userspace, byte granularity of PCI config space and access to
unarchitected PCI config space, better protection around IOMMU driver
accesses, default file mode fix, and a few misc cleanups."
* tag 'vfio-for-v3.10' of git://github.com/awilliam/linux-vfio:
vfio: Set container device mode
vfio: Use down_reads to protect iommu disconnects
vfio: Convert container->group_lock to rwsem
PCI/VFIO: use pcie_flags_reg instead of access PCI-E Capabilities Register
vfio-pci: Enable raw access to unassigned config space
vfio-pci: Use byte granularity in config map
vfio: make local function vfio_pci_intx_unmask_handler() static
VFIO-AER: Vfio-pci driver changes for supporting AER
VFIO: Wrapper for getting reference to vfio_device
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In CPSW NAPI, after processing all interrupts IRQ is enabled and then book
keeping irq_enabled is updated. In random cases when a packet is transmitted
or received between processing packets and IRQ enabled, then just after
enabled IRQ and before irq_enabled is updated, ISR is called so IRQs are
not disabled as irq_enabled is still false and CPU gets locked in CPSW ISR.
By changing the sequence as update the irq_enabled and then enable IRQ
fixes the issue. This issue is not captured always as it is a timing issue
whether Tx or Rx IRQ is invoked between packet processing and enable IRQ.
Cc: Sebastian Siewior <[email protected]>
Signed-off-by: Mugunthan V N <[email protected]>
Acked-by: Sebastian Andrzej Siewior <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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This patch only changes some names to avoid confusion.
In this patch we have:
MAX_SKB_SLOTS_DEFAULT -> FATAL_SKB_SLOTS_DEFAULT
max_skb_slots -> fatal_skb_slots
#define XEN_NETBK_LEGACY_SLOTS_MAX XEN_NETIF_NR_SLOTS_MIN
The fatal_skb_slots is the threshold to determine whether a packet is
malicious.
XEN_NETBK_LEGACY_SLOTS_MAX is the maximum slots a valid packet can have at
this point. It is defined to be XEN_NETIF_NR_SLOTS_MIN because that's
guaranteed to be supported by all backends.
Suggested-by: Ian Campbell <[email protected]>
Signed-off-by: Wei Liu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Tune xen_netbk_count_requests to not touch working array beyond limit, so that
we can make working array size constant.
Suggested-by: Jan Beulich <[email protected]>
Signed-off-by: Wei Liu <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Tracking down from the caller, first_idx is always equal to vif->tx.req_cons.
Remove it to avoid confusion.
Suggested-by: Jan Beulich <[email protected]>
Signed-off-by: Wei Liu <[email protected]>
Acked-by: Ian Campbell <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Some constant definitions are only defined for spear13xx, so
we must not attempt to build SPEAr SMP support when that
SoC is not enabled.
arch/arm/mach-spear/platsmp.c:25:35:
error: 'VA_SCU_BASE' undeclared here (not in a function)
arch/arm/mach-spear/platsmp.c: In function 'spear13xx_smp_prepare_cpus':
arch/arm/mach-spear/platsmp.c:111:58: error: 'SYS_LOCATION' undeclared (first use in this function)
Cc: Viresh Kumar <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
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As per SPEC, INTx mode is not supported on VFs. So if enable_msix fails,
then just fail probe. Also bail out of be_open if irq_register fails.
Signed-off-by: Somnath Kotur <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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When RQ creation fails in be_open(), driver jumps to be_close() where
napi_disable() is done without a prior napi_enable(); leading to a hang.
This change is needed as there is no way to see if napi is enable/disabled.
Signed-off-by: Kalesh AP <[email protected]>
Signed-off-by: Somnath Kotur <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Increasing the timeout value of write_object command to 60 seconds as
30 second timeout was found to be not enough for the command to complete.
Signed-off-by: Kalesh AP <[email protected]>
Signed-off-by: Somnath Kotur <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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certain devices
When a user requests Promiscuous mode on SkyHawk-R devices,
the FW enables Desparate Promiscuous mode.
Due to this, we need to explicitly enable Multicast Promiscuous mode
so that Multicast packets are received as well.
This patch fixes that.
Signed-off-by: Ajit Khaparde <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The tx priority pause count is available with the driver.
But we were not showing it.
This change should fix it and display it in ethtool stats.
Signed-off-by: Ajit Khaparde <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Only BE devices provide 16-bit counter for rx_drops_no_fragment.
All other devices provide a 32-bit counter for this stat.
Use the 32-bit value where available.
Signed-off-by: Ajit Khaparde <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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SkyHawk-R devices should use v2 of cq_create command.
BE3/BE2 devices can use version 0 of the command to create a CQ.
Signed-off-by: Ajit Khaparde <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: Dave Airlie <[email protected]>
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Conflicts:
arch/arm/plat-omap/dmtimer.c
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'smp-hotplug' into for-linus
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Pull vhost cleanups and fixes from Michael Tsirkin:
"Here are vhost cleanups and fixes by Asias He and myself. They affect
both vhost-net and vhost-scsi devices. They also *depend* on both
net-next and target-pending, where the net and target commits these
changes depend on are already merged. So merging through the common
vhost tree."
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
vhost_scsi: module rename
tcm_vhost: header split up
vhost: src file renames
vhost: fix error handling in RESET_OWNER ioctl
tcm_vhost: remove virtio-net.h dependency
vhost: move per-vq net specific fields out to net
tcm_vhost: document inflight ref-counting use
vhost: move vhost-net zerocopy fields to net.c
tcm_vhost: Wait for pending requests in vhost_scsi_flush()
vhost: Allow device specific fields per vq
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This is to fix a merge problem with mach-highbank/hotplug.c, which git
silently resolves, but wrongly. This commit contains the correct
resolution.
Signed-off-by: Russell King <[email protected]>
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The new reset controller API is optional, so if that is disabled,
we must not call it from platform code.
arch/arm/mach-imx/built-in.o: In function
`imx_src_init': /git/arm-soc/arch/arm/mach-imx/src.c:144:
undefined reference to `reset_controller_register'
Cc: Sascha Hauer <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>
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s5p_register_gpio_interrupt() returns 0 or positive for success, and
-ve for errors, so just use the standard >= 0 test.
Signed-off-by: Russell King <[email protected]>
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device_register() returns -ve values for errors, and zero for success.
There's no need to obfuscate the code with IS_ERR_VALUE().
Signed-off-by: Russell King <[email protected]>
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Consistently check errors using the usual method used in the kernel
for much of its history. For instance:
int gpmc_cs_set_timings(int cs, const struct gpmc_timings *t)
{
int div;
div = gpmc_calc_divider(t->sync_clk);
if (div < 0)
return div;
static int gpmc_set_async_mode(int cs, struct gpmc_timings *t)
{
...
return gpmc_cs_set_timings(cs, t);
.....
ret = gpmc_set_async_mode(gpmc_onenand_data->cs, &t);
if (IS_ERR_VALUE(ret))
return ret;
So, gpmc_cs_set_timings() thinks any negative return value is an error,
but where we check that in higher levels, only a limited range are
errors...
There is only _one_ use of IS_ERR_VALUE() in arch/arm which is really
appropriate, and that is in arch/arm/include/asm/syscall.h:
static inline long syscall_get_error(struct task_struct *task,
struct pt_regs *regs)
{
unsigned long error = regs->ARM_r0;
return IS_ERR_VALUE(error) ? error : 0;
}
because this function really does have to differentiate between error
return values and addresses which look like negative numbers (eg, from
mmap()).
So, here's a patch to remove them from OMAP, except for the above.
Acked-by: Tony Lindgren <[email protected]>
Signed-off-by: Russell King <[email protected]>
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omap_hwmod_lookup() only returns NULL on error, never an error pointer.
Checking the returned pointer using IS_ERR_OR_NULL() is needless
overhead. Use a simple !ptr check instead.
OMAP devices (oh->od) always have a valid platform device attached (see
omap_device_alloc()) so there's no point validating the platform device
pointer (we will have already oopsed long before if this is not the
case here.)
Lastly, oh->od is only ever NULL or a valid omap device pointer - 'oh'
comes from the statically declared hwmod tables, and the pointer is
only filled in by omap_device_alloc() at a point where the omap device
pointer must be valid.
Signed-off-by: Russell King <[email protected]>
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During early init, we would incorrectly set the NX bit even if the NX
feature was not supported. Instead, only set this bit if NX is
actually available and enabled. We already do very early detection of
the NX bit to enable it in EFER, this simply extends this detection to
the early page table mask.
Reported-by: Fernando Luis Vázquez Cao <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
Link: http://lkml.kernel.org/r/1367476850.5660.2.camel@nexus
Cc: <[email protected]> v3.9
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The git commite7a5cd063c7b4c58417f674821d63f5eb6747e37
("x86-64, gdt: Store/load GDT for ACPI S3 or hibernate/resume path
is not needed.") assumes that for the hibernate path the booting
kernel and the resuming kernel MUST be the same. That is certainly
the case for a 32-bit kernel (see check_image_kernel and
CONFIG_ARCH_HIBERNATION_HEADER config option).
However for 64-bit kernels it is OK to have a different kernel
version (and size of the image) of the booting and resuming kernels.
Hence the above mentioned git commit introduces an regression.
This patch fixes it by introducing a 'struct desc_ptr gdt_desc'
back in the 'struct saved_context'. However instead of having in the
'save_processor_state' and 'restore_processor_state' the
store/load_gdt calls, we are only saving the GDT in the
save_processor_state.
For the restore path the lgdt operation is done in
hibernate_asm_[32|64].S in the 'restore_registers' path.
The apt reader of this description will recognize that only 64-bit
kernels need this treatment, not 32-bit. This patch adds the logic
in the 32-bit path to be more similar to 64-bit so that in the future
the unification process can take advantage of this.
[ hpa: this also reverts an inadvertent on-disk format change ]
Suggested-by: "H. Peter Anvin" <[email protected]>
Acked-by: "Rafael J. Wysocki" <[email protected]>
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: H. Peter Anvin <[email protected]>
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Signed-off-by: Bjørn Mork <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Signed-off-by: Patrick McHardy <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc update from Benjamin Herrenschmidt:
"The main highlights this time around are:
- A pile of addition POWER8 bits and nits, such as updated
performance counter support (Michael Ellerman), new branch history
buffer support (Anshuman Khandual), base support for the new PCI
host bridge when not using the hypervisor (Gavin Shan) and other
random related bits and fixes from various contributors.
- Some rework of our page table format by Aneesh Kumar which fixes a
thing or two and paves the way for THP support. THP itself will
not make it this time around however.
- More Freescale updates, including Altivec support on the new e6500
cores, new PCI controller support, and a pile of new boards support
and updates.
- The usual batch of trivial cleanups & fixes"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (156 commits)
powerpc: Fix build error for book3e
powerpc: Context switch the new EBB SPRs
powerpc: Turn on the EBB H/FSCR bits
powerpc: Replace CPU_FTR_BCTAR with CPU_FTR_ARCH_207S
powerpc: Setup BHRB instructions facility in HFSCR for POWER8
powerpc: Fix interrupt range check on debug exception
powerpc: Update tlbie/tlbiel as per ISA doc
powerpc: Print page size info during boot
powerpc: print both base and actual page size on hash failure
powerpc: Fix hpte_decode to use the correct decoding for page sizes
powerpc: Decode the pte-lp-encoding bits correctly.
powerpc: Use encode avpn where we need only avpn values
powerpc: Reduce PTE table memory wastage
powerpc: Move the pte free routines from common header
powerpc: Reduce the PTE_INDEX_SIZE
powerpc: Switch 16GB and 16MB explicit hugepages to a different page table format
powerpc: New hugepage directory format
powerpc: Don't truncate pgd_index wrongly
powerpc: Don't hard code the size of pte page
powerpc: Save DAR and DSISR in pt_regs on MCE
...
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When a read for a layered image object finds the target object
doesn't exist, a read image request for the parent image is created
and submitted. When that completes, the callback routine was
not releasing that parent image request. Fix that.
The slab allocation stuff just added has greatly simplified the
search for the source of this memory leak.
This resolves:
http://tracker.ceph.com/issues/4803
Signed-off-by: Alex Elder <[email protected]>
Reviewed-by: Josh Durgin <[email protected]>
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Create a slab cache to manage allocation of ceph_osdc_request
structures.
This resolves:
http://tracker.ceph.com/issues/3926
Signed-off-by: Alex Elder <[email protected]>
Reviewed-by: Josh Durgin <[email protected]>
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