Commit Graph

533333 Commits

Author SHA1 Message Date
Joe Perches a28e4b2b18 hpfs: hpfs_error: Remove static buffer, use vsprintf extension %pV instead
Removing unnecessary static buffers is good.
Use the vsprintf %pV extension instead.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mikulas Patocka <mikulas@twibright.com>
Cc: stable@vger.kernel.org      # v2.6.36+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09 13:35:31 -07:00
Sanidhya Kashyap ce657611ba hpfs: kstrdup() out of memory handling
There is a possibility of nothing being allocated to the new_opts in
case of memory pressure, therefore return ENOMEM for such case.

Signed-off-by: Sanidhya Kashyap <sanidhya.gatech@gmail.com>
Signed-off-by: Mikulas Patocka <mikulas@twibright.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09 13:35:31 -07:00
Firo Yang d7b04097c2 hpfs: Remove unessary cast
Avoid a pointless kmem_cache_alloc() return value cast in
fs/hpfs/super.c::hpfs_alloc_inode()

Signed-off-by: Firo Yang <firogm@gmail.com>
Signed-off-by: Mikulas Patocka <mikulas@twibright.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09 13:35:31 -07:00
Mikulas Patocka a27b5b97d6 hpfs: add fstrim support
This patch adds support for fstrim to the HPFS filesystem.

Signed-off-by: Mikulas Patocka <mikulas@twibright.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09 13:35:30 -07:00
Pantelis Antoniou 4f001fd301 i2c: Mark instantiated device nodes with OF_POPULATE
Mark (and unmark) device nodes with the POPULATE flag as appropriate.
This is required to avoid multi probing when using I2C and device
overlays containing a mux.
This patch is also more careful with the release of the adapter device
which caused a deadlock with muxes, and does not break the build
on !OF since the node flag accessors are not defined then.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-07-09 22:25:54 +02:00
Axel Lin eb8173e3d7 i2c: jz4780: Fix return value if probe fails
Current code returns 0 if fails to read clock-frequency DT property,
fix it. Also add checking return value of clk_prepare_enable and
propagate return value of devm_request_irq.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-07-09 22:17:31 +02:00
Linus Torvalds 4c0a9f7458 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph fixes from Sage Weil:
 "There is a fix for CephFS and RBD when used within containers/namespaces,
   and a fix for the address learning the client is supposed to do when
  initially talking to the Ceph cluster.

  There are also two patches updating MAINTAINERS.  One breaks out the
  common Ceph code shared by fs/ceph and drivers/block/rbd.c into a
  separate entry with the appropriate maintainers listed.  The second
  adds a second reference to the github tree where the Ceph client
  development takes place (before it is pushed to korg and then to you).

  The goal here is to move closer to a situation where Ilya Dryomov or
  one of the other maintainers can push things to you if I am
  unavailable.  Ilya has done most of the work preparing branches for
  upstream recently; you should not be surprised to hear from him if I
  am trapped in some internet-less wasteland or hit by a bus or
  something.  In the meantime, we'll work on getting him added to the
  kernel web of trust"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  MAINTAINERS: add secondary tree for ceph modules
  MAINTAINERS: update ceph entries
  libceph: treat sockaddr_storage with uninitialized family as blank
  libceph: enable ceph in a non-default network namespace
2015-07-09 13:13:11 -07:00
Axel Lin 724948106e i2c: xgene-slimpro: Fix missing mbox_free_channel call in probe error path
Free requested mailbox channel before return error.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-07-09 22:13:10 +02:00
Geert Uytterhoeven fc0a1f035c i2c: I2C_MT65XX should depend on HAS_DMA
If NO_DMA=y:

    ERROR: "dma_unmap_single" [drivers/i2c/busses/i2c-mt65xx.ko] undefined!
    ERROR: "dma_mapping_error" [drivers/i2c/busses/i2c-mt65xx.ko] undefined!
    ERROR: "dma_map_single" [drivers/i2c/busses/i2c-mt65xx.ko] undefined!

Add a dependency on HAS_DMA to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-07-09 22:10:20 +02:00
Mikulas Patocka 9abea2d64c ioctl_compat: handle FITRIM
The FITRIM ioctl has the same arguments on 32-bit and 64-bit
architectures, so we can add it to the list of compatible ioctls and
drop it from compat_ioctl method of various filesystems.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ted Ts'o <tytso@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09 11:42:21 -07:00
Paul Moore 3324603524 selinux: don't waste ebitmap space when importing NetLabel categories
At present we don't create efficient ebitmaps when importing NetLabel
category bitmaps.  This can present a problem when comparing ebitmaps
since ebitmap_cmp() is very strict about these things and considers
these wasteful ebitmaps not equal when compared to their more
efficient counterparts, even if their values are the same.  This isn't
likely to cause problems on 64-bit systems due to a bit of luck on
how NetLabel/CIPSO works and the default ebitmap size, but it can be
a problem on 32-bit systems.

This patch fixes this problem by being a bit more intelligent when
importing NetLabel category bitmaps by skipping over empty sections
which should result in a nice, efficient ebitmap.

Cc: stable@vger.kernel.org # 3.17
Signed-off-by: Paul Moore <pmoore@redhat.com>
2015-07-09 14:20:36 -04:00
Linus Torvalds 6f957724b9 Fix firmware loader uevent buffer NULL pointer dereference
The firmware class uevent function accessed the "fw_priv->buf" buffer
without the proper locking and testing for NULL.  This is an old bug
(looks like it goes back to 2012 and commit 1244691c73b2: "firmware
loader: introduce firmware_buf"), but for some reason it's triggering
only now in 4.2-rc1.

Shuah Khan is trying to bisect what it is that causes this to trigger
more easily, but in the meantime let's just fix the bug since others are
hitting it too (at least Ingo reports having seen it as well).

Reported-and-tested-by: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Ming Lei <ming.lei@canonical.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09 11:20:01 -07:00
Kirill A. Shutemov 6b7339f4c3 mm: avoid setting up anonymous pages into file mapping
Reading page fault handler code I've noticed that under right
circumstances kernel would map anonymous pages into file mappings: if
the VMA doesn't have vm_ops->fault() and the VMA wasn't fully populated
on ->mmap(), kernel would handle page fault to not populated pte with
do_anonymous_page().

Let's change page fault handler to use do_anonymous_page() only on
anonymous VMA (->vm_ops == NULL) and make sure that the VMA is not
shared.

For file mappings without vm_ops->fault() or shred VMA without vm_ops,
page fault on pte_none() entry would lead to SIGBUS.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Willy Tarreau <w@1wt.eu>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09 11:12:48 -07:00
Sage Weil 6e67b7ae21 MAINTAINERS: add secondary tree for ceph modules
The Ceph kernel code is primarily developed in the github tree, and only
pushed to the korg tree before going to Linus.  If Sage is unavailable and
another maintainer needs to push something upstream, pull requests may
originate from the github tree instead of Sage's korg tree.

Signed-off-by: Sage Weil <sage@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2015-07-09 20:37:39 +03:00
Sage Weil 398ecff5a5 MAINTAINERS: update ceph entries
- The Ceph common code is used by both fs/ceph and drivers/block/rbd.
  Add a separate maintainers entry.

- Add Ilya as libceph maintainer and cephfs submaintainer.

- Attribute Documentation/ABI/testing/sysfs-bus-rbd to rbd.

- ceph-devel@vger.kernel.org should be L, not M in rbd entry.

Signed-off-by: Sage Weil <sage@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2015-07-09 20:30:34 +03:00
Ilya Dryomov c44bd69c0c libceph: treat sockaddr_storage with uninitialized family as blank
addr_is_blank() should return true if family is neither AF_INET nor
AF_INET6.  This is what its counterpart entity_addr_t::is_blank_ip() is
doing and it is the right thing to do: in process_banner() we check if
our address is blank and if it is "learn" it from our peer.  As it is,
we never learn our address and always send out a blank one.  This goes
way back to ceph.git commit dd732cbfc1c9 ("use sockaddr_storage; and
some ipv6 support groundwork") from 2009.

While at at, do not open-code ipv6_addr_any() and use INADDR_ANY
constant instead of 0.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
2015-07-09 20:30:34 +03:00
Ilya Dryomov 757856d2b9 libceph: enable ceph in a non-default network namespace
Grab a reference on a network namespace of the 'rbd map' (in case of
rbd) or 'mount' (in case of ceph) process and use that to open sockets
instead of always using init_net and bailing if network namespace is
anything but init_net.  Be careful to not share struct ceph_client
instances between different namespaces and don't add any code in the
!CONFIG_NET_NS case.

This is based on a patch from Hong Zhiguo <zhiguohong@tencent.com>.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
2015-07-09 20:30:34 +03:00
Alex Deucher 355c822847 drm/radeon: disable vce init on cayman (v2)
Cayman does not have vce.  There were a few places in the
shared cayman/TV code where we were trying to do vce stuff.

v2: remove -ENOENT check

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-07-09 11:40:12 -04:00
Christian König 0f11770417 drm/amdgpu: fix timeout calculation
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2015-07-09 11:40:11 -04:00
Christian König dbedff05d1 drm/radeon: check if BO_VA is set before adding it to the invalidation list
Otherwise we try to clear BO_VAs without an address.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=91141

Signed-off-by: Christian König <christian.koenig@amd.com>
Test-by: hadack@gmx.de
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-07-09 11:40:10 -04:00
Christian König eb99070b4a drm/radeon: allways add the VM clear duplicate
We need to allways add the VM clear duplicate of the BO_VA,
no matter what the old status was.

Signed-off-by: Christian König <christian.koenig@amd.com>
Test-by: hadack@gmx.de
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-07-09 11:40:10 -04:00
Alex Deucher d57c0edfe0 Revert "Revert "drm/radeon: dont switch vt on suspend""
This reverts commit ac9134906b.

We've fixed the underlying problem with cursors, so re-enable
this.
2015-07-09 11:40:09 -04:00
Michel Dänzer 8991668ab4 drm/radeon: Fold radeon_set_cursor() into radeon_show_cursor()
Reviewed-by: Grigori Goronzy <greg@chown.ath.cx>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-07-09 11:40:02 -04:00
Grigori Goronzy f3cbb17bcf drm/radeon: unpin cursor BOs on suspend and pin them again on resume (v2)
Everything is evicted from VRAM before suspend, so we need to make
sure all BOs are unpinned and re-pinned after resume. Fixes broken
mouse cursor after resume introduced by commit b9729b17.

[Michel Dänzer: Add pinning BOs on resume]

v2:
[Alex Deucher: merge cursor unpin into fb unpin loop]

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=100541
Cc: stable@vger.kernel.org
Reviewed-by: Christian König <christian.koenig@amd.com> (v1)
Signed-off-by: Grigori Goronzy <greg@chown.ath.cx>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-07-09 11:40:01 -04:00
Michel Dänzer cd404af0c9 drm/radeon: Clean up reference counting and pinning of the cursor BOs
Take a GEM reference for and pin the new cursor BO, unpin and drop the
GEM reference for the old cursor BO in radeon_crtc_cursor_set2, and use
radeon_crtc->cursor_addr in radeon_set_cursor.

This fixes radeon_cursor_reset accidentally incrementing the cursor BO
pin count, and cleans up the code a little.

Cc: stable@vger.kernel.org
Reviewed-by: Grigori Goronzy <greg@chown.ath.cx>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-07-09 11:39:40 -04:00
Maninder Singh a0f67441b0 drm/amdkfd: validate pdd where it acquired first
Currently pdd is validate after dereferencing it, which is
not correct, Thus validate pdd before its first use.

Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2015-07-09 13:27:52 +03:00
Markos Chandras 1c885357da Revert "MIPS: Kconfig: Disable SMP/CPS for 64-bit"
This reverts commit 6ca716f2e5.

SMP/CPS is now supported on 64bit cores.

Cc: <stable@vger.kernel.org> # 4.1
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10592/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-07-09 11:17:44 +02:00
Markos Chandras b677bc03d7 MIPS: cps-vec: Use macros for various arithmetics and memory operations
Replace lw/sw and various arithmetic instructions with macros so the
code can work on 64-bit kernels as well.

Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10591/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-07-09 11:17:01 +02:00
Markos Chandras 717f14255a MIPS: kernel: cps-vec: Replace KSEG0 with CKSEG0
In preparation for 64-bit CPS support, we replace KSEG0 with CKSEG0
so 64-bit kernels can be supported.

Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10590/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-07-09 11:15:44 +02:00
Markos Chandras 0586ac75cd MIPS: kernel: cps-vec: Use ta0-ta3 pseudo-registers for 64-bit
The cps-vec code assumes O32 ABI and uses t4-t7 in quite a few places. This
breaks the build on 64-bit. As a result of which, use the pseudo-registers
ta0-ta3 to make the code compatible with 64-bit.

Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10589/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-07-09 11:15:17 +02:00
Markos Chandras 977e043d5e MIPS: kernel: cps-vec: Replace mips32r2 ISA level with mips64r2
mips32r2 is a subset of mips64r2, so we replace mips32r2 with mips64r2
in preparation for 64-bit CPS support.

Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10588/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-07-09 11:14:48 +02:00
Markos Chandras 81a02e34de MIPS: kernel: cps-vec: Replace 'la' macro with PTR_LA
The PTR_LA macro will pick the correct "la" or "dla" macro to
load an address to a register. This gets rids of the following
warnings (and others) when building a 64-bit CPS kernel:

arch/mips/kernel/cps-vec.S:63: Warning: la used to load 64-bit address
arch/mips/kernel/cps-vec.S:159: Warning: la used to load 64-bit address
arch/mips/kernel/cps-vec.S:220: Warning: la used to load 64-bit address
arch/mips/kernel/cps-vec.S:240: Warning: la used to load 64-bit address
[...]

Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10587/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-07-09 11:13:33 +02:00
Markos Chandras fd5ed3066b MIPS: kernel: smp-cps: Fix 64-bit compatibility errors due to pointer casting
Commit 1d8f1f5a78 ("MIPS: smp-cps: hotplug support") added hotplug
support in the SMP/CPS implementation but it introduced a few build problems
on 64-bit kernels due to pointer being casted to and from 'int' C types. We
fix this problem by using 'unsigned long' instead which should match the size
of the pointers in 32/64-bit kernels. Finally, we fix the comment since the
CM base address is loaded to v1($3) instead of v0.

Fixes the following build problems:

arch/mips/kernel/smp-cps.c: In function 'wait_for_sibling_halt':
arch/mips/kernel/smp-cps.c:366:17: error: cast from pointer to integer of
different size [-Werror=pointer-to-int-cast]
[...]
arch/mips/kernel/smp-cps.c: In function 'cps_cpu_die':
arch/mips/kernel/smp-cps.c:427:13: error: cast to pointer
from integer of different size [-Werror=int-to-pointer-cast]

cc1: all warnings being treated as errors

Fixes: 1d8f1f5a78 ("MIPS: smp-cps: hotplug support")
Cc: <stable@vger.kernel.org> # 3.16+
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10586/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-07-09 11:12:57 +02:00
Markos Chandras 143fefc8f3 MIPS: Fix erroneous JR emulation for MIPS R6
Commit 5f9f41c474 ("MIPS: kernel: Prepare
the JR instruction for emulation on MIPS R6") added support for
emulating the JR instruction on MIPS R6 cores but that introduced a bug
which could be triggered when hitting a JALR opcode because the code used
the wrong field in the 'r_format' struct to determine the instruction
opcode. This lead to crashes because an emulated JALR instruction was
treated as a JR one when the R6 emulator was turned off.

Fixes: 5f9f41c474 ("MIPS: kernel: Prepare the JR instruction for emulation on MIPS R6")
Cc: <stable@vger.kernel.org> # 4.0+
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10583/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-07-09 11:11:43 +02:00
Markos Chandras e9d92d2233 MIPS: Fix branch emulation for BLTC and BGEC instructions
Commits f1b44067c1 ("MIPS: Emulate the
new MIPS R6 B{L,G}T{Z,}{AL,}C instructions") and commit
a8ff66f52d ("MIPS: Emulate the new MIPS
R6 B{L,G}E{Z,}{AL,}C instructions") added support for emulating various
branch compact instructions. However, it missed the case for those which
use the old BLEZL and BGTZL opcodes leading to random crashes when the R6
emulator is disabled. We fix this by ensuring that the 'rt' field is not
zero which is always true for these branch compact instructions.

Fixes: f1b44067c1 ("MIPS: Emulate the new MIPS R6 B{L,G}T{Z,}{AL,}C instructions")
Fixes: a8ff66f52d ("MIPS: Emulate the new MIPS R6 B{L,G}E{Z,}{AL,}C instructions")
Cc: <stable@vger.kernel.org> # 4.0+
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/10582/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-07-09 11:10:40 +02:00
Markos Chandras 761b4493bb MIPS: kernel: traps: Fix broken indentation
Fix broken indentation caused by the SMTC removal
commit b633648c5a
("MIPS: MT: Remove SMTC support")

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Fixes: b633648c5a ("MIPS: MT: Remove SMTC support")
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10581/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-07-09 11:09:47 +02:00
Alexander Sverdlin a6335fa11e MIPS: bootmem: Don't use memory holes for page bitmap
Commit f9a7febd leads to a fact that mapstart and therefore a page bitmap for
bootmem allocator immediately follows initrd_end. This doesn't always work
well on Octeon, where there are holes in PFN ranges (refer to 5b3b1688 and
4MB-aligned PFN allocation). Depending on the inird location it could happen,
that mapstart would be in an area not allocated by plat_mem_setup() in
arch/mips/cavium-octeon/setup.c, but in the alignment hole between initrd and
the next PFN area. Later on this memory will be unconditionally made available
to buddy allocator at the end of free_all_bootmem_core() (mm/bootmem.c).
All of this results in Linux using the memory not designated for Linux in
Octeon's plat_mem_setup(), which in turn means corruption of the memory used
by another OS/baremetal code on the same SoC.

It doesn't look to me as a problem of Octeon platform code, but rather as an
inability of f9a7febd to deal correctly with the fragmented memory-mappings.
Proposed fix moves the check for initrd address to the same calculation-loop
in bootmem_init() (arch/mips/kernel/setup.c), which also accounts for kernel
code location. This should result in mapstart located starting from the first
PFN area after kernel code AND initrd.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Cc: linux-mips@linux-mips.org
Cc: David Daney <david.daney@cavium.com>
Cc: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>
Cc: Joe Perches <joe@perches.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Yusuf Khan <yusuf.khan@nokia.com>
Cc: Michael Kreuzer <michael.kreuzer@nokia.com>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Patchwork: https://patchwork.linux-mips.org/patch/10594/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-07-09 11:02:59 +02:00
Thomas Gleixner 1f6823faa8 time: Get rid of do_posix_clock_monotonic_gettime
All users gone. Remove it before we get another one.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-07-09 10:51:46 +02:00
Thomas Gleixner 0ec62aaee9 cris: Replace do_posix_clock_monotonic_gettime()
ktime_get_ts() is the proper interface today.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
2015-07-09 10:51:46 +02:00
Ville Syrjälä 52613921b3 Revert "drm/i915: Allocate context objects from stolen"
Stolen gets trashed during hibernation, so storing contexts there
is not a very good idea. On my IVB machines this leads to a totally
dead GPU on resume. A reboot is required to resurrect it. So let's
not store contexts where they will get trampled.

This reverts commit 149c86e74f.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-09 09:40:16 +02:00
Chris Wilson 19ee835cdb drm/i915: Declare the swizzling unknown for L-shaped configurations
The old style of memory interleaving swizzled upto the end of the
first even bank of memory, and then used the remainder as unswizzled on
the unpaired bank - i.e. swizzling is not constant for all memory. This
causes problems when we try to migrate memory and so the kernel prevents
migration at all when we detect L-shaped inconsistent swizzling.
However, this issue also extends to userspace who try to manually detile
into memory as the swizzling for an individual page is unknown (it
depends on its physical address only known to the kernel), userspace
cannot correctly swizzle objects.

v2: Mark the global swizzling as unknown rather than adjust the value
reported to userspace.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91105
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-09 09:36:44 +02:00
Linus Torvalds 883a2dfd6f Power management and ACPI material for v4.2-rc2
- Fix for an ACPI resources management regression introduced
    during the 4.1 cycle (that unfortunately went into -stable)
    effectively reverting the bad commit along with the recent
    fixups on top of it and using an alternative approach to
    address the underlying issue (Rafael J Wysocki).
 
  - Fix for a memory leak and an incorrect return value in an
    error code path in the ACPI LPSS (Low-Power Subsystem) driver
    (Rafael J Wysocki).
 
  - Fix for a leftover dangling pointer in an error code path in
    the new wakeup IRQ support code (Rafael J Wysocki).
 
  - Fix to prevent infinite loops (due to errors in other places)
    from happening in the core generic PM domains support code
    (Geert Uytterhoeven).
 
  - Hibernation documentation update/clarification (Uwe Geuder).
 
  - Support for _CLS-based device enumeration in the ACPI core
    and in the ATA subsystem (Suravee Suthikulpanit).
 
 /
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Merge tag 'pm+acpi-4.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI updates from Rafael Wysocki:
 "These are fixes on top of the previous PM+ACPI pull requests
  (including one fix for a 4.1 regression) and two commits adding
  _CLS-based device enumeration support to the ACPI core and the ATA
  subsystem that waited for the latest ACPICA changes to be merged.

  Specifics:

   - Fix for an ACPI resources management regression introduced during
     the 4.1 cycle (that unfortunately went into -stable) effectively
     reverting the bad commit along with the recent fixups on top of it
     and using an alternative approach to address the underlying issue
     (Rafael J Wysocki).

   - Fix for a memory leak and an incorrect return value in an error
     code path in the ACPI LPSS (Low-Power Subsystem) driver (Rafael J
     Wysocki).

   - Fix for a leftover dangling pointer in an error code path in the
     new wakeup IRQ support code (Rafael J Wysocki).

   - Fix to prevent infinite loops (due to errors in other places) from
     happening in the core generic PM domains support code (Geert
     Uytterhoeven).

   - Hibernation documentation update/clarification (Uwe Geuder).

   - Support for _CLS-based device enumeration in the ACPI core and in
     the ATA subsystem (Suravee Suthikulpanit)"

* tag 'pm+acpi-4.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM / wakeirq: Avoid setting power.wakeirq too hastily
  ata: ahci_platform: Add ACPI _CLS matching
  ACPI / scan: Add support for ACPI _CLS device matching
  PM / hibernate: clarify resume documentation
  PM / Domains: Avoid infinite loops in attach/detach code
  ACPI / LPSS: Fix up acpi_lpss_create_device()
  ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage
2015-07-08 17:34:51 -07:00
Linus Torvalds 331c5841dd Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull arch/tile fix from Chris Metcalf:
 "This fix eliminates a "section mismatch" warning caused by the new
  __ex_table checking code in modpost"

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  modpost: work correctly with tile coldtext sections
2015-07-08 17:15:55 -07:00
Linus Torvalds 9d993ccb00 Single fix: missing rbtree removal in the module load failure path. Easy to
trigger with bad params.
 
 Thanks to Peter Zijlstra and Arthur Marsh for going around on this one.
 
 Cheers,
 Rusty.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull module fix from Rusty Russell:
 "Single fix: missing rbtree removal in the module load failure path.
  Easy to trigger with bad params.

  Thanks to Peter Zijlstra and Arthur Marsh for going around on this
  one"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  module: Fix load_module() error path
2015-07-08 17:14:54 -07:00
Chris Metcalf 673c2c34f6 modpost: work correctly with tile coldtext sections
The tilegx and tilepro compilers use .coldtext for their unlikely
executed text section name, so an __attribute__((cold)) function
will (when compiled with higher optimization levels) land in
the .coldtext section.

Modify modpost to add .coldtext to the set of OTHER_TEXT_SECTIONS
so we don't get warnings about referencing such a section in an
__ex_table block, and then also modify arch/tile/lib/memcpy_user_64.c
so that it uses plain ".coldtext" instead of ".coldtext.memcpy".
The latter naming is a relic of an earlier use of -ffunction-sections,
which we no longer use by default.

Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
2015-07-08 18:53:49 -04:00
Kristina Martsenko 9ccd608070 arm64: dts: add device tree for ARM SMM-A53x2 on LogicTile Express 20MG
Add a DTS file for the MP2 Cortex-A53 Soft Macrocell Model implemented
on a LogicTile Express 20MG (V2F-1XV7) daughterboard. This is based on
the version that's currently available from the ARM DTS repository [1].

[1] git://linux-arm.org/arm-dts.git

Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2015-07-08 14:44:56 -07:00
Sudeep Holla 3adf7aaa76 arm: dts: vexpress: add missing CCI PMU device node to TC2
The CCI device node was added to vexpress CA15_A7(i.e. TC2) much before
the CCI PMU support and binding was added. This patch adds the missing
PMU node so that CCI PMUs can be used on TC2.

Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2015-07-08 14:44:55 -07:00
Mark Rutland 4d44f2a026 arm: dts: vexpress: describe all PMUs in TC2 dts
The dts for the CoreTile Express A15x2 A7x3 (TC2) only describes the
PMUs of the Cortex-A15 CPUs, and not the Cortex-A7 CPUs.

Now that we have a mechanism for describing disparate PMUs and their
interrupts in device tree, this patch makes use of these to describe the
PMUs for all CPUs in the system. For consistency, the existing A15 PMU
interrupt-affinity property is reflowed across two lines.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2015-07-08 14:44:55 -07:00
Peter Zijlstra 758556bdc1 module: Fix load_module() error path
The load_module() error path frees a module but forgot to take it out
of the mod_tree, leaving a dangling entry in the tree, causing havoc.

Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Reported-by: Arthur Marsh <arthur.marsh@internode.on.net>
Tested-by: Arthur Marsh <arthur.marsh@internode.on.net>
Fixes: 93c2e105f6 ("module: Optimize __module_address() using a latched RB-tree")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-07-09 06:57:12 +09:30
Tirumalesh Chalamarla efc5120b82 GICv3: Add ITS entry to THUNDER dts
The PCIe host controller uses MSIs provided by GICv3 ITS. Enable it on
Thunder SoCs by adding an entry to DT.

Signed-off-by: Tirumalesh Chalamarla <tchalamarla@cavium.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
2015-07-08 14:24:57 -07:00