Commit Graph

426143 Commits

Author SHA1 Message Date
Tejun Heo da9846ae15 kernfs: make kernfs_deactivate() honor KERNFS_LOCKDEP flag
kernfs_deactivate() forgot to check whether KERNFS_LOCKDEP is set
before performing lockdep annotations and ends up feeding
uninitialized lockdep_map to lockdep triggering warning like the
following on USB stick hotunplug.

 usb 1-2: USB disconnect, device number 2
 INFO: trying to register non-static key.
 the code is fine but needs lockdep annotation.
 turning off the locking correctness validator.
 CPU: 1 PID: 62 Comm: khubd Not tainted 3.13.0-work+ #82
 Hardware name: empty empty/S3992, BIOS 080011  10/26/2007
  ffff880065ca7f60 ffff88013a4ffa08 ffffffff81cfb6bd 0000000000000002
  ffff88013a4ffac8 ffffffff810f8530 ffff88013a4fc710 0000000000000002
  ffff880100000000 ffffffff82a3db50 0000000000000001 ffff88013a4fc710
 Call Trace:
  [<ffffffff81cfb6bd>] dump_stack+0x4e/0x7a
  [<ffffffff810f8530>] __lock_acquire+0x1910/0x1e70
  [<ffffffff810f931a>] lock_acquire+0x9a/0x1d0
  [<ffffffff8127c75e>] kernfs_deactivate+0xee/0x130
  [<ffffffff8127d4c8>] kernfs_addrm_finish+0x38/0x60
  [<ffffffff8127d701>] kernfs_remove_by_name_ns+0x51/0xa0
  [<ffffffff8127b4f1>] remove_files.isra.1+0x41/0x80
  [<ffffffff8127b7e7>] sysfs_remove_group+0x47/0xa0
  [<ffffffff8127b873>] sysfs_remove_groups+0x33/0x50
  [<ffffffff8177d66d>] device_remove_attrs+0x4d/0x80
  [<ffffffff8177e25e>] device_del+0x12e/0x1d0
  [<ffffffff819722c2>] usb_disconnect+0x122/0x1a0
  [<ffffffff819749b5>] hub_thread+0x3c5/0x1290
  [<ffffffff810c6a6d>] kthread+0xed/0x110
  [<ffffffff81d0a56c>] ret_from_fork+0x7c/0xb0

Fix it by making kernfs_deactivate() perform lockdep annotations only
if KERNFS_LOCKDEP is set.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Fabio Estevam <festevam@gmail.com>
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Jiri Kosina <jkosina@suse.cz>
Reported-by: Dave Jones <davej@redhat.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Tested-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-02-05 11:44:04 -08:00
Stephen Smalley 2172fa709a SELinux: Fix kernel BUG on empty security contexts.
Setting an empty security context (length=0) on a file will
lead to incorrectly dereferencing the type and other fields
of the security context structure, yielding a kernel BUG.
As a zero-length security context is never valid, just reject
all such security contexts whether coming from userspace
via setxattr or coming from the filesystem upon a getxattr
request by SELinux.

Setting a security context value (empty or otherwise) unknown to
SELinux in the first place is only possible for a root process
(CAP_MAC_ADMIN), and, if running SELinux in enforcing mode, only
if the corresponding SELinux mac_admin permission is also granted
to the domain by policy.  In Fedora policies, this is only allowed for
specific domains such as livecd for setting down security contexts
that are not defined in the build host policy.

Reproducer:
su
setenforce 0
touch foo
setfattr -n security.selinux foo

Caveat:
Relabeling or removing foo after doing the above may not be possible
without booting with SELinux disabled.  Any subsequent access to foo
after doing the above will also trigger the BUG.

BUG output from Matthew Thode:
[  473.893141] ------------[ cut here ]------------
[  473.962110] kernel BUG at security/selinux/ss/services.c:654!
[  473.995314] invalid opcode: 0000 [#6] SMP
[  474.027196] Modules linked in:
[  474.058118] CPU: 0 PID: 8138 Comm: ls Tainted: G      D   I
3.13.0-grsec #1
[  474.116637] Hardware name: Supermicro X8ST3/X8ST3, BIOS 2.0
07/29/10
[  474.149768] task: ffff8805f50cd010 ti: ffff8805f50cd488 task.ti:
ffff8805f50cd488
[  474.183707] RIP: 0010:[<ffffffff814681c7>]  [<ffffffff814681c7>]
context_struct_compute_av+0xce/0x308
[  474.219954] RSP: 0018:ffff8805c0ac3c38  EFLAGS: 00010246
[  474.252253] RAX: 0000000000000000 RBX: ffff8805c0ac3d94 RCX:
0000000000000100
[  474.287018] RDX: ffff8805e8aac000 RSI: 00000000ffffffff RDI:
ffff8805e8aaa000
[  474.321199] RBP: ffff8805c0ac3cb8 R08: 0000000000000010 R09:
0000000000000006
[  474.357446] R10: 0000000000000000 R11: ffff8805c567a000 R12:
0000000000000006
[  474.419191] R13: ffff8805c2b74e88 R14: 00000000000001da R15:
0000000000000000
[  474.453816] FS:  00007f2e75220800(0000) GS:ffff88061fc00000(0000)
knlGS:0000000000000000
[  474.489254] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  474.522215] CR2: 00007f2e74716090 CR3: 00000005c085e000 CR4:
00000000000207f0
[  474.556058] Stack:
[  474.584325]  ffff8805c0ac3c98 ffffffff811b549b ffff8805c0ac3c98
ffff8805f1190a40
[  474.618913]  ffff8805a6202f08 ffff8805c2b74e88 00068800d0464990
ffff8805e8aac860
[  474.653955]  ffff8805c0ac3cb8 000700068113833a ffff880606c75060
ffff8805c0ac3d94
[  474.690461] Call Trace:
[  474.723779]  [<ffffffff811b549b>] ? lookup_fast+0x1cd/0x22a
[  474.778049]  [<ffffffff81468824>] security_compute_av+0xf4/0x20b
[  474.811398]  [<ffffffff8196f419>] avc_compute_av+0x2a/0x179
[  474.843813]  [<ffffffff8145727b>] avc_has_perm+0x45/0xf4
[  474.875694]  [<ffffffff81457d0e>] inode_has_perm+0x2a/0x31
[  474.907370]  [<ffffffff81457e76>] selinux_inode_getattr+0x3c/0x3e
[  474.938726]  [<ffffffff81455cf6>] security_inode_getattr+0x1b/0x22
[  474.970036]  [<ffffffff811b057d>] vfs_getattr+0x19/0x2d
[  475.000618]  [<ffffffff811b05e5>] vfs_fstatat+0x54/0x91
[  475.030402]  [<ffffffff811b063b>] vfs_lstat+0x19/0x1b
[  475.061097]  [<ffffffff811b077e>] SyS_newlstat+0x15/0x30
[  475.094595]  [<ffffffff8113c5c1>] ? __audit_syscall_entry+0xa1/0xc3
[  475.148405]  [<ffffffff8197791e>] system_call_fastpath+0x16/0x1b
[  475.179201] Code: 00 48 85 c0 48 89 45 b8 75 02 0f 0b 48 8b 45 a0 48
8b 3d 45 d0 b6 00 8b 40 08 89 c6 ff ce e8 d1 b0 06 00 48 85 c0 49 89 c7
75 02 <0f> 0b 48 8b 45 b8 4c 8b 28 eb 1e 49 8d 7d 08 be 80 01 00 00 e8
[  475.255884] RIP  [<ffffffff814681c7>]
context_struct_compute_av+0xce/0x308
[  475.296120]  RSP <ffff8805c0ac3c38>
[  475.328734] ---[ end trace f076482e9d754adc ]---

Reported-by:  Matthew Thode <mthode@mthode.org>
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Cc: stable@vger.kernel.org
Signed-off-by: Paul Moore <pmoore@redhat.com>
2014-02-05 12:20:51 -05:00
Paul Moore 6a96e15096 selinux: add SOCK_DIAG_BY_FAMILY to the list of netlink message types
The SELinux AF_NETLINK/NETLINK_SOCK_DIAG socket class was missing the
SOCK_DIAG_BY_FAMILY definition which caused SELINUX_ERR messages when
the ss tool was run.

 # ss
 Netid  State  Recv-Q Send-Q  Local Address:Port   Peer Address:Port
 u_str  ESTAB  0      0                  * 14189             * 14190
 u_str  ESTAB  0      0                  * 14145             * 14144
 u_str  ESTAB  0      0                  * 14151             * 14150
 {...}
 # ausearch -m SELINUX_ERR
 ----
 time->Thu Jan 23 11:11:16 2014
 type=SYSCALL msg=audit(1390493476.445:374):
  arch=c000003e syscall=44 success=yes exit=40
  a0=3 a1=7fff03aa11f0 a2=28 a3=0 items=0 ppid=1852 pid=1895
  auid=0 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0
  tty=pts0 ses=1 comm="ss" exe="/usr/sbin/ss"
  subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)
 type=SELINUX_ERR msg=audit(1390493476.445:374):
  SELinux:  unrecognized netlink message type=20 for sclass=32

Signed-off-by: Paul Moore <pmoore@redhat.com>
2014-02-05 12:20:48 -05:00
Paul Moore 825e587af2 Linux 3.13
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJS3IyXAAoJEHm+PkMAQRiGplAH/ilCikBrCHyZ2938NHNLm+j1
 yhfYnEJHLNg7T69KEj3p0cNagO3v9RPWM6UYFBQ6uFIYNN1MBKO7U+mCZuMWzeO8
 +tGMV3mn5wx+oYn1RnWCCweQx5AESEl6rYn8udPDKh7LfW5fCLV60jguUjVSQ9IQ
 cvtKlWknbiHyM7t1GoYgzN7jlPrRQvcNQZ+Aogzz7uSnJAgwINglBAHS7WP2tiEM
 HAU2FoE4b3MbfGaid1vypaYQPBbFebx7Bw2WxAuZhkBbRiUBKlgF0/SYhOTvH38a
 Sjpj1EHKfjcuCBt9tht6KP6H56R25vNloGR2+FB+fuQBdujd/SPa9xDflEMcdG4=
 =iXnG
 -----END PGP SIGNATURE-----

Merge tag 'v3.13' into stable-3.14

Linux 3.13

Conflicts:
	security/selinux/hooks.c

Trivial merge issue in selinux_inet_conn_request() likely due to me
including patches that I sent to the stable folks in my next tree
resulting in the patch hitting twice (I think).  Thankfully it was an
easy fix this time, but regardless, lesson learned, I will not do that
again.
2014-02-05 10:39:48 -05:00
Thomas Hellstrom 1b76af5ce8 drm/ttm: Don't clear page metadata of imported sg pages
These page pointers shouldn't be visible to TTM in the first place, but
until we fix that up, don't clear the page metadata because that
will upset the exporter.

Reported-and-tested-by: Cristoph Haag <haagch.christoph@googleemail.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05 16:03:29 +01:00
Colin Cross 530b099dfe security: select correct default LSM_MMAP_MIN_ADDR on arm on arm64
Binaries compiled for arm may run on arm64 if CONFIG_COMPAT is
selected.  Set LSM_MMAP_MIN_ADDR to 32768 if ARM64 && COMPAT to
prevent selinux failures launching 32-bit static executables that
are mapped at 0x8000.

Signed-off-by: Colin Cross <ccross@android.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Eric Paris <eparis@redhat.com>
Acked-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-02-05 14:59:14 +00:00
Catalin Marinas 6290b53de0 arm64: compat: Wire up new AArch32 syscalls
This patch enables sys_compat, sys_finit_module, sys_sched_setattr and
sys_sched_getattr for compat (AArch32) applications.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-02-05 12:03:52 +00:00
Nathan Lynch d4022a3352 arm64: vdso: update wtm fields for CLOCK_MONOTONIC_COARSE
Update wall-to-monotonic fields in the VDSO data page
unconditionally.  These are used to service CLOCK_MONOTONIC_COARSE,
which is not guarded by use_syscall.

Signed-off-by: Nathan Lynch <nathan_lynch@mentor.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-02-05 11:55:49 +00:00
Nathan Lynch 069b918623 arm64: vdso: fix coarse clock handling
When __kernel_clock_gettime is called with a CLOCK_MONOTONIC_COARSE or
CLOCK_REALTIME_COARSE clock id, it returns incorrectly to whatever the
caller has placed in x2 ("ret x2" to return from the fast path).  Fix
this by saving x30/LR to x2 only in code that will call
__do_get_tspec, restoring x30 afterward, and using a plain "ret" to
return from the routine.

Also: while the resulting tv_nsec value for CLOCK_REALTIME and
CLOCK_MONOTONIC must be computed using intermediate values that are
left-shifted by cs_shift (x12, set by __do_get_tspec), the results for
coarse clocks should be calculated using unshifted values
(xtime_coarse_nsec is in units of actual nanoseconds).  The current
code shifts intermediate values by x12 unconditionally, but x12 is
uninitialized when servicing a coarse clock.  Fix this by setting x12
to 0 once we know we are dealing with a coarse clock id.

Signed-off-by: Nathan Lynch <nathan_lynch@mentor.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-02-05 11:55:30 +00:00
Al Stone af1ae78abb ACPI: introduce CONFIG_ACPI_REDUCED_HARDWARE_ONLY
ACPI hardware reduced mode exists to allow newer platforms to use a
simpler form of ACPI that does not require supporting legacy versions
of the specification and their associated hardware.  This mode was
introduced in the ACPI 5.0 specification.

The ACPI hardware reduced mode is supposed to be used on systems
having the HW_REDUCED_ACPI flag set in the FADT.  ACPICA checks
that flag to determine whether or not it should work in the HW
reduced mode and there are pieces of code in it that will never
be used in that case.

Since some architecutres will always use the ACPI HW reduced mode,
it doesn't make sense for them to ever compile support for anything
else.  Thus, they should set the flag ACPI_REDUCED_HARDWARE to TRUE
in the ACPICA source.  To enable them to do that, introduce a new
kernel configuration option, CONFIG_ACPI_REDUCED_HARDWARE_ONLY, that
will cause the ACPICA's ACPI_REDUCED_HARDWARE flag to be TRUE when
set.

Introducing this configuration item is based on suggestions from Lv
Zheng saying that this does not belong in ACPICA, but rather to the
Linux kernel itself.

References: http://www.spinics.net/lists/linux-acpi/msg46369.html
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Al Stone <al.stone@linaro.org>
[rjw: Subject and changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-05 12:28:07 +01:00
Toshi Kani 8fcfb99c8e ACPI / hotplug: Fix panic on eject to ejected device
When an eject request is sent to an ejected ACPI device, the following
panic occurs:

 ACPI: \_SB_.SCK3.CPU3: ACPI_NOTIFY_EJECT_REQUEST event
 BUG: unable to handle kernel NULL pointer dereference at 0000000000000070
 IP: [<ffffffff813a7cfe>] acpi_device_hotplug+0x10b/0x33b
	:
 Call Trace:
 [<ffffffff813a24da>] acpi_hotplug_work_fn+0x1c/0x27
 [<ffffffff8109cbe5>] process_one_work+0x175/0x430
 [<ffffffff8109d7db>] worker_thread+0x11b/0x3a0

This is becase device->handler is NULL in acpi_device_hotplug().
This case was used to fail in acpi_hotplug_notify_cb() as the target
had no acpi_deivce.  However, acpi_device now exists after ejection.

Added a check to verify if acpi_device->handler is valid for an
eject request in acpi_hotplug_notify_cb().  Note that handler passed
from an argument is still valid while acpi_device->handler is NULL.

Fixes: 202317a573 (ACPI / scan: Add acpi_device objects for all device nodes in the namespace)
Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-05 12:14:43 +01:00
Mark Rutland 883d50a0ed arm64: simplify pgd_alloc
Currently pgd_alloc has a redundant NULL check in its return path that
can be removed with no ill effects. With that removed it's also possible
to return early and eliminate the new_pgd temporary variable.

This patch applies said modifications, making the logic of pgd_alloc
correspond 1-1 with that of pgd_free.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-02-05 10:45:07 +00:00
Mark Rutland bfb67a5606 arm64: fix typo: s/SERRROR/SERROR/
Somehow SERROR has acquired an additional 'R' in a couple of headers.
This patch removes them before they spread further. As neither instance
is in use yet, no other sites need to be fixed up.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-02-05 10:42:32 +00:00
Catalin Marinas a55f9929a9 arm64: Invalidate the TLB when replacing pmd entries during boot
With the 64K page size configuration, __create_page_tables in head.S
maps enough memory to get started but using 64K pages rather than 512M
sections with a single pgd/pud/pmd entry pointing to a pte table.
create_mapping() may override the pgd/pud/pmd table entry with a block
(section) one if the RAM size is more than 512MB and aligned correctly.
For the end of this block to be accessible, the old TLB entry must be
invalidated.

Cc: <stable@vger.kernel.org>
Reported-by: Mark Salter <msalter@redhat.com>
Tested-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-02-05 10:30:51 +00:00
Laura Abbott ccc9e244eb arm64: Align CMA sizes to PAGE_SIZE
dma_alloc_from_contiguous takes number of pages for a size.
Align up the dma size passed in to page size to avoid truncation
and allocation failures on sizes less than PAGE_SIZE.

Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-02-05 10:28:27 +00:00
Vinayak Kale 5044bad43e arm64: add DSB after icache flush in __flush_icache_all()
Add DSB after icache flush to complete the cache maintenance operation.
The function __flush_icache_all() is used only for user space mappings
and an ISB is not required because of an exception return before executing
user instructions. An exception return would behave like an ISB.

Signed-off-by: Vinayak Kale <vkale@apm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-02-05 10:26:35 +00:00
Nitin A Kamble 923fa4ea38 genirq: Generic irq chip requires IRQ_DOMAIN
The generic_chip.c uses interfaces from irq_domain.c which is
controlled by the IRQ_DOMAIN config option, but there is no Kconfig
dependency so the build can fail:

linux/kernel/irq/generic-chip.c:400:11: error:
'irq_domain_xlate_onetwocell' undeclared here (not in a function)

Select IRQ_DOMAIN when GENERIC_IRQ_CHIP is selected.

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Link: http://lkml.kernel.org/r/1391129410-54548-2-git-send-email-nitin.a.kamble@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org # 3.11+
2014-02-05 10:17:32 +01:00
Thomas Hellstrom c66f854338 drm/ttm: Fix TTM object open regression
Commit drm/ttm: ttm object security fixes for render nodes introduced a
regression where, if a TTM object was opened multiple times from the same
open file, the caller would spin uninterruptibly in the kernel.

Fix this.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05 09:29:25 +01:00
Dave Jones cd9a21a831 vmwgfx: Fix unitialized stack read in vmw_setup_otable_base
One of the error paths in vmw_setup_otable_base causes us to return with
'ret' having never been set to anything causing us to return whatever was
on the stack.

Found with Coverity

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
2014-02-05 08:52:34 +01:00
Takashi Iwai 276ab336b4 ALSA: hda - Improve loopback path lookups for AD1983
AD1983 has flexible loopback routes and the generic parser would take
wrong path confusingly instead of taking individual paths via NID 0x0c
and 0x0d.  For avoiding it, limit the connections at these widgets so
that the parser can think more straightforwardly.  This fixes the
regression of the missing line-in loopback on Dell machine.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=70011
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-05 08:49:41 +01:00
Thomas Hellstrom 30f82d816d drm/vmwgfx: Reemit context bindings when necessary v2
When a context is first referenced in the command stream, make sure that all
scrubbed (as a result of eviction) bindings are re-emitted. Also make sure that
all bound resources are put on the resource validate list.

This is needed for legacy emulation, since legacy user-space drivers will
typically not re-emit shader bindings. It also removes the requirement for
user-space drivers to re-emit render-target- and texture bindings.

Makes suspend and hibernate now also work with legacy user-space drivers on
guest-backed devices.

v2: Don't rebind on legacy devices.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05 08:41:58 +01:00
Thomas Hellstrom a6fc955ff9 drm/vmwgfx: Detect old user-space drivers and set up legacy emulation v2
GB aware mesa userspace drivers are detected by the fact that they are
calling the vmw getparam ioctl querying DRM_VMW_PARAM_HW_CAPS to detect
whether the device is Guest-backed object capable. For other drivers,
lie about hardware version and send the 3D capabilities in a format they
expect.

v2:
Use DRM_VMW_PARAM_MAX_MOB_MEMORY to detect gb awareness,
Make sure we don't ovwerwrite bounce buffer or write past user-space buffer
indicated size.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05 08:41:44 +01:00
Thomas Hellstrom d5bde95663 drm/vmwgfx: Emulate legacy shaders on guest-backed devices v2
Command stream legacy shader creation and destruction is replaced by
NOPs in the command stream, and instead guest-backed shaders are created
and destroyed as part of the command validation process.

v2: Removed some stray debug messages.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05 08:39:19 +01:00
Thomas Hellstrom c1a21373d2 drm/vmwgfx: Fix legacy surface reference size copyback
Surfaces created using the guest-backed surface interface only keeps the
base mip size, so only copy that if the legacy surface reference
ioctl requests the size information.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05 08:38:03 +01:00
Thomas Hellstrom 0ccbbae43c drm/vmwgfx: Fix SET_SHADER_CONST emulation on guest-backed devices
Emulate the SET_SHADER_CONST legacy command on guest-backed devices by
issuing a SET_GB_SHADERCONSTS_INLINE command.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05 08:37:05 +01:00
Thomas Hellstrom cf5e341333 drm/vmwgfx: Fix regression caused by "drm/ttm: make ttm reservation calls behave like reservation calls"
The call to ttm_eu_backoff_reservation() as part of an error path would cause
a lock imbalance if the reservation ticket was not initialized. This error is
easily triggered from user-space by submitting a bogus command stream.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Cc: stable@vger.kernel.org
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>
2014-02-05 08:36:11 +01:00
Thomas Hellstrom 76c7d18bcd drm/vmwgfx: Don't commit staged bindings if execbuf fails
If execbuf fails and binding commands are never sent to the device,
don't commit the staged context bindings to the tracker.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
2014-02-05 08:35:09 +01:00
Takashi Iwai c20f31ec42 ALSA: hda - Fix missing VREF setup for Mac Pro 1,1
Mac Pro 1,1 with ALC889A codec needs the VREF setup on NID 0x18 to
VREF50, in order to make the speaker working.  The same fixup was
already needed for MacBook Air 1,1, so we can reuse it.

Reported-by: Nicolai Beuermann <mail@nico-beuermann.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-05 07:38:07 +01:00
Takashi Iwai c7579fed1f ALSA: hda - Add missing mixer widget for AD1983
The mixer widget on AD1983 at NID 0x0e was missing in the commit
[f2f8be43c5c9: ALSA: hda - Add aamix NID to AD codecs].

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=70011
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-05 07:30:50 +01:00
Takashi Iwai d3c56568f4 ALSA: hda/realtek - Avoid invalid COEFs for ALC271X
We've seen often problems after suspend/resume on Acer Aspire One
AO725 with ALC271X codec as reported in kernel bugzilla, and it turned
out that some COEFs doesn't work and triggers the codec communication
stall.

Since these magic COEF setups are specific to ALC269VB for some PLL
configurations, the machine works even without these manual
adjustment.  So, let's simply avoid applying them for ALC271X.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=52181
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-05 07:17:49 +01:00
Dave Airlie ec22b4aa99 drm/mgag200: fix typo causing bw limits to be ignored on some chips
mode->mdev otherwise the bw limits never kick in.

Reported in RHEL testing.

Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-02-05 14:31:32 +10:00
Luis G.F 47a08c85f7 ACPI / battery: Fix incorrect sscanf() string in acpi_battery_init_alarm()
Fix incorrect sscanf() string in acpi_battery_init_alarm().
Change from %ld to %lu, because 'x' is unsigned long.

Signed-off-by: Luis G.F <luisgf@luisgf.es>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-05 01:07:54 +01:00
Dan Carpenter 085ca1175c ACPI / proc: remove unneeded NULL check
We already verified that "ldev" was non-NULL earlier and also we
dereference again without checking a three lines later.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-05 01:06:21 +01:00
Dan Carpenter eb5ed9a322 ACPI / utils: remove a pointless NULL check
"element" can't be NULL because it is the address of a struct member.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-05 01:05:24 +01:00
Mika Westerberg e18ac62fa4 ACPI / video: Add HP EliteBook Revolve 810 to the blacklist
On HP EliteBook Revolve 810 the ACPI backlight device doesn't work as
expected. For example when resuming from system sleep, it seems to lose
backlight settings.

Forcing Intel driver fixes the problem so add this machine the ACPI
video detect blacklist.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-05 01:03:21 +01:00
Stanislaw Gruszka 7b320cb1ed pinctrl: protect pinctrl_list add
We have few fedora bug reports about list corruption on pinctrl,
for example:
https://bugzilla.redhat.com/show_bug.cgi?id=1051918

Most likely corruption happen due lack of protection of pinctrl_list
when adding new nodes to it. Patch corrects that.

Fixes: 42fed7ba44 ("pinctrl: move subsystem mutex to pinctrl_dev struct")
Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-02-04 21:59:45 +01:00
Dirk Brandewie fcb6a15c2e intel_pstate: Take core C0 time into account for core busy calculation
Take non-idle time into account when calculating core busy time.
This ensures that intel_pstate will notice a decrease in load.

References: https://bugzilla.kernel.org/show_bug.cgi?id=66581
Cc: 3.10+ <stable@vger.kernel.org> # 3.10+
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-02-04 21:41:15 +01:00
Linus Torvalds 878a876b2e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
 "Filipe is fixing compile and boot problems with our crc32c rework, and
  Josef has disabled snapshot aware defrag for now.

  As the number of snapshots increases, we're hitting OOM.  For the
  short term we're disabling things until a bigger fix is ready"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: use late_initcall instead of module_init
  Btrfs: use btrfs_crc32c everywhere instead of libcrc32c
  Btrfs: disable snapshot aware defrag for now
2014-02-04 12:26:56 -08:00
Linus Torvalds d7512f79fd NFS client bugfixes for Linux 3.14
Highlights:
 
 - Fix NFSv3 acl regressions
 - Fix NFSv4 memory corruption due to slot table abuse in nfs4_proc_open_confirm
 - nfs4_destroy_session must call rpc_destroy_waitqueue
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJS8RmYAAoJEGcL54qWCgDynYEP/1Ip6/IoaqOfT5kAYo05tw30
 Wqk0vNZWqdkuK/T8kUQmcbaN6Gt29QRhhJzDBhIrQ+7n8LsWwiZ3zoi9m3p2Ry7U
 M+xWcE6P7Cc44w3XLfll/xKb3ktfhXFQUeTHxsQ3X7uBsBP8TcfYabWHFrrkSe2B
 aubj/JqebLm2Uz7Zb03T4JF6LKd+3uHBr7SDK03zTUaPtn+bcVGBwS9MlFTt17Ma
 2zMFMM4TNNPDGJWJMvI460BYB4nySINCA4I+78sSLOQbiDc6yZd1Zq/Ngtvs+AlW
 /+m3eEY3ljcawCSAHMkoef4G5ljHV8cndtr3WBtAUjGq/H6V8eGdW4PB/A2UGYRH
 Vdcxrm6Bn7IDRJ6baq72DuX1ZyTDPBllRz0m0l08w8p2cuK7lFDSF7/HS2MNOb2i
 8Ai02CG9+aWZCz1uuF0vngKViP+hfmJqrLr1OgLuSggPd1kbqU/+HnNGtLmDfi/0
 K0ceuMvIuMlahlYgb7XbGFN7RIcbIYXXhBM2dUQo+/TtGvfjHVI8EmmlC7CtEXdW
 TeVc9gxWgKIlF1p06aoWFzdbBkK3CtNCXgh8vQpFRSqvoAQC/mBVQW9Iank77hRA
 94wiNZVLKaEO+l2WmfuGLhZ9kkLb/Iq5NVA5IUGWgjyT1yJsR5faTFfRhM+yjABE
 IwQF5ntXqxz82nWCRbSl
 =kKEV
 -----END PGP SIGNATURE-----

Merge tag 'nfs-for-3.14-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights:

   - Fix NFSv3 acl regressions
   - Fix NFSv4 memory corruption due to slot table abuse in
     nfs4_proc_open_confirm
   - nfs4_destroy_session must call rpc_destroy_waitqueue"

* tag 'nfs-for-3.14-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  fs: get_acl() must be allowed to return EOPNOTSUPP
  NFSv3: Fix return value of nfs3_proc_setacls
  NFSv3: Remove unused function nfs3_proc_set_default_acl
  NFSv4.1: nfs4_destroy_session must call rpc_destroy_waitqueue
  NFSv4: Fix memory corruption in nfs4_proc_open_confirm
  nfs: fix setting of ACLs on file creation.
2014-02-04 12:26:16 -08:00
Linus Torvalds 12b13835a0 kbuild: don't enable DEBUG_INFO when building for COMPILE_TEST
It really isn't very interesting to have DEBUG_INFO when doing compile
coverage stuff (you wouldn't want to run the result anyway, that's kind
of the whole point of COMPILE_TEST), and it currently makes the build
take longer and use much more disk space for "all{yes,mod}config".

There's somewhat active discussion about this still, and we might end up
with some new config option for things like this (Andi points out that
the silly X86_DECODER_SELFTEST option also slows down the normal
coverage tests hugely), but I'm starting the ball rolling with this
simple one-liner.

DEBUG_INFO isn't that noticeable if you have tons of memory and a good
IO subsystem, but it hurts you a lot if you don't - for very little
upside for the common use.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-02-04 12:20:01 -08:00
Will Deacon 4050740348 arm64: vdso: prevent ld from aligning PT_LOAD segments to 64k
Whilst the text segment for our VDSO is marked as PT_LOAD in the ELF
headers, it is mapped by the kernel and not actually subject to
demand-paging. ld doesn't realise this, and emits a p_align field of 64k
(the maximum supported page size), which conflicts with the load address
picked by the kernel on 4k systems, which will be 4k aligned. This
causes GDB to fail with "Failed to read a valid object file image from
memory" when attempting to load the VDSO.

This patch passes the -n option to ld, which prevents it from aligning
PT_LOAD segments to the maximum page size.

Cc: <stable@vger.kernel.org>
Reported-by: Kyle McMartin <kyle@redhat.com>
Acked-by: Kyle McMartin <kyle@redhat.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-02-04 17:52:47 +00:00
Mark Brown a6a671e1b6 Merge remote-tracking branches 'regulator/fix/ab3100' and 'regulator/fix/s2mps11' into regulator-linus 2014-02-04 12:58:19 +00:00
Mark Brown 00e6747024 Merge remote-tracking branch 'regulator/fix/core' into regulator-linus 2014-02-04 12:58:17 +00:00
James Hogan 6776254b1c MIPS: Wire up sched_setattr/sched_getattr syscalls
Wire up for MIPS the new sched_setattr and sched_getattr system calls
added in commit d50dde5a10 (sched: Add new scheduler syscalls to
support an extended scheduling parameters ABI) merged in v3.14-rc1.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6502/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-02-04 13:47:46 +01:00
Manuel Lauss 4294ad1c52 MIPS: Alchemy: Fix DB1100 GPIO registration
With CONFIG_GPIOLIB=y gpios need to be requested before they can be
modified.  Request the SD carddetect pins, and drop the SPI direction
setup, as the driver does that for us anyway.  This gets rid of a
lot of WARN_ON()s triggered by GPIO core, and restores functionality
of the touschreen controller.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/6497/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-02-04 13:18:02 +01:00
Martin Bugge 57f0547fbc [media] adv7842: Composite free-run platfrom-data fix
Incorrectly setting of free-run for Composite.
Copy/paste regression fix.

Signed-off-by: Martin Bugge <marbugge@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04 06:46:10 -02:00
Martin Bugge 257cc4b5c5 [media] v4l2-dv-timings: fix GTF calculation
Round off image width to nearest 8 (GTF_CELL_GRAN)

A source sending a GTF (Generalized Timing Formula) format have no means of
signalling image width. The assumed aspect ratio may result in an odd image
width but according to the standard image width should be in multiple of 8.

Cc: Mats Randgaard <matrandg@cisco.com>
Signed-off-by: Martin Bugge <marbugge@cisco.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04 06:45:47 -02:00
Masanari Iida 1ba6c90161 [media] hdpvr: Fix memory leak in debug
cppcheck reported memory leak in device_authorizatio()
within hdpvr-core.c.
When the debug option is specified and the code jump to
"unlock:" label, print_buf was not freed.
Confirm the module succesfully compiled without error.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04 06:43:53 -02:00
Antti Palosaari f2e4c5e004 [media] af9035: add ID [2040:f900] Hauppauge WinTV-MiniStick 2
Add USB ID [2040:f900] for Hauppauge WinTV-MiniStick 2.
Device is build upon IT9135 chipset.

Tested-by: Stefan Becker <schtefan@gmx.net>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04 06:38:29 -02:00
Dave Jones 13e1b87c98 [media] mxl111sf: Fix compile when CONFIG_DVB_USB_MXL111SF is unset
Fix the following build error:

drivers/media/usb/dvb-usb-v2/
mxl111sf-tuner.h:72:9: error: expected ‘;’, ‘,’ or ‘)’ before ‘struct’
         struct mxl111sf_tuner_config *cfg)

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-02-04 06:37:32 -02:00