Merge tag 'powerpc-4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
- opal-prd mmap fix from Vaidy
- set kernel taint for MCEs from D

Merge tag 'powerpc-4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
- opal-prd mmap fix from Vaidy
- set kernel taint for MCEs from Daniel
- alignment exception description from Anton
- ppc4xx_hsta_msi build fix from Daniel
- opal-elog interrupt fix from Alistair
- core_idle_state race fix from Shreyas
- hv-24x7 lockdep fix from Sukadev
- multiple cxl fixes from Daniel, Ian, Mikey & Maninder
- update MAINTAINERS to point at shared tree

* tag 'powerpc-4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
cxl: Check if afu is not null in cxl_slbia
powerpc: Update MAINTAINERS to point at shared tree
powerpc/perf/24x7: Fix lockdep warning
cxl: Fix off by one error allowing subsequent mmap page to be accessed
cxl: Fail mmap if requested mapping is larger than assigned problem state area
cxl: Fix refcounting in kernel API
powerpc/powernv: Fix race in updating core_idle_state
powerpc/powernv: Fix opal-elog interrupt handler
powerpc/ppc4xx_hsta_msi: Include ppc-pci.h to fix reference to hose_list
powerpc: Add plain English description for alignment exception oopses
cxl: Test the correct mmio space before unmapping
powerpc: Set the correct kernel taint on machine check errors
cxl/vphb.c: Use phb pointer after NULL check
powerpc/powernv: Fix vma page prot flags in opal-prd driver

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cxl: Check if afu is not null in cxl_slbia

The pointer to an AFU in the adapter's list of AFUs can be null
if we're in the process of removing AFUs. The afu_list_lock
doesn't guard against this.

Sa

cxl: Check if afu is not null in cxl_slbia

The pointer to an AFU in the adapter's list of AFUs can be null
if we're in the process of removing AFUs. The afu_list_lock
doesn't guard against this.

Say we have 2 slices, and we're in the process of removing cxl.
- We remove the AFUs in order (see cxl_remove). In cxl_remove_afu
for AFU 0, we take the lock, set adapter->afu[0] = NULL, and
release the lock.
- Then we get an slbia. In cxl_slbia we take the lock, and set
afu = adapter->afu[0], which is NULL.
- Therefore our attempt to check afu->enabled will blow up.

Therefore, check if afu is a null pointer before dereferencing it.

Cc: stable@vger.kernel.org
Signed-off-by: Daniel Axtens <dja@axtens.net>
Acked-by: Michael Neuling <mikey@neuling.org>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Merge branches 'fixes' and 'ioremap' into for-linus

Merge 4.2-rc1 into MTD -next

Merge branch 'fixes-rc1' into omap-for-v4.2/fixes

Merge tag 'v4.2-rc1' into patchwork

Linux 4.2-rc1

* tag 'v4.2-rc1': (12415 commits)
Linux 4.2-rc1
bluetooth: fix list handling
9p: cope with bogus responses from server in p9_client_{read,wri

Merge tag 'v4.2-rc1' into patchwork

Linux 4.2-rc1

* tag 'v4.2-rc1': (12415 commits)
Linux 4.2-rc1
bluetooth: fix list handling
9p: cope with bogus responses from server in p9_client_{read,write}
p9_client_write(): avoid double p9_free_req()
9p: forgetting to cancel request on interrupted zero-copy RPC
dax: bdev_direct_access() may sleep
block: Add support for DAX reads/writes to block devices
dax: Use copy_from_iter_nocache
dax: Add block size note to documentation
NTB: Add split BAR output for debugfs stats
NTB: Change WARN_ON_ONCE to pr_warn_once on unsafe
NTB: Print driver name and version in module init
NTB: Increase transport MTU to 64k from 16k
NTB: Rename Intel code names to platform names
NTB: Default to CPU memcpy for performance
NTB: Improve performance with write combining
NTB: Use NUMA memory in Intel driver
NTB: Use NUMA memory and DMA chan in transport
NTB: Rate limit ntb_qp_link_work
NTB: Add tool test client
...

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Merge tag 'powerpc-4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

Pull powerpc updates from Michael Ellerman:

- disable the 32-bit vdso when building LE, so we can build with a

Merge tag 'powerpc-4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

Pull powerpc updates from Michael Ellerman:

- disable the 32-bit vdso when building LE, so we can build with a
64-bit only toolchain.

- EEH fixes from Gavin & Richard.

- enable the sys_kcmp syscall from Laurent.

- sysfs control for fastsleep workaround from Shreyas.

- expose OPAL events as an irq chip by Alistair.

- MSI ops moved to pci_controller_ops by Daniel.

- fix for kernel to userspace backtraces for perf from Anton.

- merge pseries and pseries_le defconfigs from Cyril.

- CXL in-kernel API from Mikey.

- OPAL prd driver from Jeremy.

- fix for DSCR handling & tests from Anshuman.

- Powernv flash mtd driver from Cyril.

- dynamic DMA Window support on powernv from Alexey.

- LLVM clang fixes & workarounds from Anton.

- reworked version of the patch to abort syscalls when transactional.

- fix the swap encoding to support 4TB, from Aneesh.

- various fixes as usual.

- Freescale updates from Scott: Highlights include more 8xx
optimizations, an e6500 hugetlb optimization, QMan device tree nodes,
t1024/t1023 support, and various fixes and cleanup.

* tag 'powerpc-4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (180 commits)
cxl: Fix typo in debug print
cxl: Add CXL_KERNEL_API config option
powerpc/powernv: Fix wrong IOMMU table in pnv_ioda_setup_bus_dma()
powerpc/mm: Change the swap encoding in pte.
powerpc/mm: PTE_RPN_MAX is not used, remove the same
powerpc/tm: Abort syscalls in active transactions
powerpc/iommu/ioda2: Enable compile with IOV=on and IOMMU_API=off
powerpc/include: Add opal-prd to installed uapi headers
powerpc/powernv: fix construction of opal PRD messages
powerpc/powernv: Increase opal-irqchip initcall priority
powerpc: Make doorbell check preemption safe
powerpc/powernv: pnv_init_idle_states() should only run on powernv
macintosh/nvram: Remove as unused
powerpc: Don't use gcc specific options on clang
powerpc: Don't use -mno-strict-align on clang
powerpc: Only use -mtraceback=no, -mno-string and -msoft-float if toolchain supports it
powerpc: Only use -mabi=altivec if toolchain supports it
powerpc: Fix duplicate const clang warning in user access code
vfio: powerpc/spapr: Support Dynamic DMA windows
vfio: powerpc/spapr: Register memory and define IOMMU v2
...

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cxl: Move include file cxl.h -> cxl-base.h

This moves the current include file from cxl.h -> cxl-base.h. This current
include file is used only to pass information between the base driver that
need

cxl: Move include file cxl.h -> cxl-base.h

This moves the current include file from cxl.h -> cxl-base.h. This current
include file is used only to pass information between the base driver that
needs to be built into the kernel and the cxl module.

This is to make way for a new include/misc/cxl.h which will
contain just the kernel API for other driver to use

Signed-off-by: Michael Neuling <mikey@neuling.org>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Merge branch 'next' into for-linus

Prepare first round of input updates for 4.1 merge window.

Merge tag 'v4.0' into for_next

Linux 4.0

Merge branches 'for-4.0/upstream-fixes', 'for-4.1/genius', 'for-4.1/huion-uclogic-merge', 'for-4.1/i2c-hid', 'for-4.1/kconfig-drop-expert-dependency', 'for-4.1/logitech', 'for-4.1/multitouch', 'for-4

Merge branches 'for-4.0/upstream-fixes', 'for-4.1/genius', 'for-4.1/huion-uclogic-merge', 'for-4.1/i2c-hid', 'for-4.1/kconfig-drop-expert-dependency', 'for-4.1/logitech', 'for-4.1/multitouch', 'for-4.1/rmi', 'for-4.1/sony', 'for-4.1/upstream' and 'for-4.1/wacom' into for-linus

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Merge tag 'v4.0-rc5' into next

Merge with the latest upstream to synchronize Synaptics changes
and bring in new infrastructure pieces.

Conflicts:
drivers/input/mouse/synaptics.c

Merge branch 'sched/urgent' into sched/core, to pick up fixes before applying new patches

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge tag 'v4.0-rc5' into x86/fpu, to prevent conflicts

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge tag 'v4.0-rc3' into x86/build, to refresh an older tree before applying new changes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge tag 'v4.0-rc3' into asoc-rt5670

Linux 4.0-rc3

Conflicts:
sound/soc/codecs/rt5670.c

Merge tag 'v4.0-rc2' into irq/core, to refresh the tree before applying new changes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge tag 'v4.0-rc2' into timers/core, to refresh the tree before pulling more changes

Merge tag 'v4.0-rc2' into x86/asm, to refresh the tree

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge branch 'linus' into x86/urgent, to merge dependent patch

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge tag 'v4.0-rc1' into perf/core, to refresh the tree

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge tag 'v4.0-rc1' into x86/mm, to refresh the tree

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge tag 'v4.0-rc1' into locking/core, to refresh the tree before merging new changes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge tag 'v4.0-rc1' into patchwork

Linux 34.0-rc1

* tag 'v4.0-rc1': (8947 commits)
Linux 4.0-rc1
autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation
procfs: fix race

Merge tag 'v4.0-rc1' into patchwork

Linux 34.0-rc1

* tag 'v4.0-rc1': (8947 commits)
Linux 4.0-rc1
autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation
procfs: fix race between symlink removals and traversals
debugfs: leave freeing a symlink body until inode eviction
Documentation/filesystems/Locking: ->get_sb() is long gone
trylock_super(): replacement for grab_super_passive()
fanotify: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
SELinux: Use d_is_positive() rather than testing dentry->d_inode
Smack: Use d_is_positive() rather than testing dentry->d_inode
TOMOYO: Use d_is_dir() rather than d_inode and S_ISDIR()
Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inode
Apparmor: mediated_filesystem() should use dentry->d_sb not inode->i_sb
VFS: Split DCACHE_FILE_TYPE into regular and special types
VFS: Add a fallthrough flag for marking virtual dentries
VFS: Add a whiteout dentry type
VFS: Introduce inode-getting helpers for layered/unioned fs environments
kernel: make READ_ONCE() valid on const arguments
blk-throttle: check stats_cpu before reading it from sysfs
...

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Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux

I pushed a version of the crypto iov_iter bug fix that
Al Viro wrote, but Linus put in a different copy of the
same fix into his tr

Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux

I pushed a version of the crypto iov_iter bug fix that
Al Viro wrote, but Linus put in a different copy of the
same fix into his tree.

I then reverted my commit in net-next, and that's why we have a merge
when pulling in Linus's tree.

Signed-off-by: David S. Miller <davem@davemloft.net>

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