263257 Commits

Author SHA1 Message Date
Rob Clark
774449ebcb drm/msm: fix locking inconsistencies in gpu->destroy()
In error paths, this was being called without struct_mutex held.
Leading to panics like:

  msm 1a00000.qcom,mdss_mdp: No memory protection without IOMMU
  Kernel panic - not syncing: BUG!
  CPU: 0 PID: 1409 Comm: cat Not tainted 4.0.0-dirty #4
  Hardware name: Qualcomm Technologies, Inc. APQ 8016 SBC (DT)
  Call trace:
  [<ffffffc000089c78>] dump_backtrace+0x0/0x118
  [<ffffffc000089da0>] show_stack+0x10/0x20
  [<ffffffc0006686d4>] dump_stack+0x84/0xc4
  [<ffffffc0006678b4>] panic+0xd0/0x210
  [<ffffffc0003e1ce4>] drm_gem_object_free+0x5c/0x60
  [<ffffffc000402870>] adreno_gpu_cleanup+0x60/0x80
  [<ffffffc0004035a0>] a3xx_destroy+0x20/0x70
  [<ffffffc0004036f4>] a3xx_gpu_init+0x84/0x108
  [<ffffffc0004018b8>] adreno_load_gpu+0x58/0x190
  [<ffffffc000419dac>] msm_open+0x74/0x88
  [<ffffffc0003e0a48>] drm_open+0x168/0x400
  [<ffffffc0003e7210>] drm_stub_open+0xa8/0x118
  [<ffffffc0001a0e84>] chrdev_open+0x94/0x198
  [<ffffffc000199f88>] do_dentry_open+0x208/0x310
  [<ffffffc00019a4c4>] vfs_open+0x44/0x50
  [<ffffffc0001aa26c>] do_last.isra.14+0x2c4/0xc10
  [<ffffffc0001aac38>] path_openat+0x80/0x5e8
  [<ffffffc0001ac354>] do_filp_open+0x2c/0x98
  [<ffffffc00019b60c>] do_sys_open+0x13c/0x228
  [<ffffffc00019b72c>] SyS_openat+0xc/0x18
  CPU1: stopping

But there isn't any particularly good reason to hold struct_mutex for
teardown, so just standardize on calling it without the mutex held and
use the _unlocked() versions for GEM obj unref'ing

Signed-off-by: Rob Clark <robdclark@gmail.com>
2015-05-15 09:28:27 -04:00
Dave Airlie
4723132456 Merge tag 'drm-intel-fixes-2015-05-13' of git://anongit.freedesktop.org/drm-intel into drm-fixes
fix one gpu hang on resume.

* tag 'drm-intel-fixes-2015-05-13' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Avoid GPU hang when coming out of s3 or s4
2015-05-15 15:21:18 +10:00
Dave Airlie
e52f649e5b Merge branch 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
radeon minor fixes, and pci id addition.
* 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: don't do mst probing if MST isn't enabled.
  drm/radeon: add new bonaire pci id
  drm/radeon: fix VM_CONTEXT*_PAGE_TABLE_END_ADDR handling
2015-05-15 15:20:45 +10:00
sixiao@microsoft.com
7eafd9b400 hv_netvsc: use per_cpu stats to calculate TX/RX data
Current code does not lock anything when calculating the TX and RX stats.
As a result, the RX and TX data reported by ifconfig are not accuracy in a
system with high network throughput and multiple CPUs (in my test,
RX/TX = 83% between 2 HyperV VM nodes which have 8 vCPUs and 40G Ethernet).

This patch fixed the above issue by using per_cpu stats.
netvsc_get_stats64() summarizes TX and RX data by iterating over all CPUs
to get their respective stats.

This v2 patch addressed David's comments on the cleanup path when
netdev_alloc_pcpu_stats() failed.

Signed-off-by: Simon Xiao <sixiao@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-14 22:49:30 -04:00
Bert Vermeulen
ef7f3a5c71 mdio-gpio: Propagate mii_bus.phy_ignore_ta_mask
This also changes mii_bus.phy_mask to u32 for consistency.

Signed-off-by: Bert Vermeulen <bert@biot.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-14 22:35:13 -04:00
Bjorn Helgaas
c1c52db16e net/mlx4: Avoid 'may be used uninitialized' warnings
With a cross-compiler based on gcc-4.9, I see warnings like the following:

  drivers/net/ethernet/mellanox/mlx4/resource_tracker.c: In function 'mlx4_SW2HW_CQ_wrapper':
  drivers/net/ethernet/mellanox/mlx4/resource_tracker.c:3048:10: error: 'cq' may be used uninitialized in this function [-Werror=maybe-uninitialized]
    cq->mtt = mtt;

I think the warning is spurious because we only use cq when
cq_res_start_move_to() returns zero, and it always initializes *cq in that
case.  The srq case is similar.  But maybe gcc isn't smart enough to figure
that out.

Initialize cq and srq explicitly to avoid the warnings.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-14 22:28:48 -04:00
Linus Torvalds
f0897f4cc0 ACPI fixes for v4.1-rc4
- The recent ACPICA commit that set the ACPI _REV return value to 2
    (which is the value always used by Windows and now mandated by the
    spec too) in order to prevent the firmware people from using it to
    play tricks with us caused a serious audio regression to happen on
    Dell XPS 13 (the AML on that machine uses the _REV return value to
    decide how to expose audio to the OS and does that to hide the
    lack of proper support for its I2S audio in Linux), so revert that
    commit for now and we'll revisit the issue in the next cycle.
 
  - Ensure that the ordering of acpi_reserve_resources() with respect
    to the rest of the ACPI initialization sequence will always be
    the same, or the IO or memory region occupied by the ACPI fixed
    registers may be assigned to a PCI host bridge as a result of
    a race and random breakage ensues going forward.
 
 /
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABCAAGBQJVVS6SAAoJEILEb/54YlRxGNUP/jnRBNZhzIFWJxkbVJ/IQgXI
 g5HFO/ebdGqSyAEuXHZFzdNJv52WBsWurESHvCKyh4n+c0m6CIoKpXeNRFZyZJIU
 tPZhF9IzeuuLXz+MuR0V+9D45UFoBZFScqTqihw13kM1/DnRmKN/BSO4EdxDSzno
 zcUPXfUl8Od8erbAD5E3U0EnzEiM2nrg/PPmVs+DM1qYg5NVAFBniF44R47dvz0D
 yAKTjlQg8FouYw4gmD0E79n3ydL0A6S+TdNV+u/MYRHg7cq/P6kXvjNJncKTIof0
 WqbXBB9ZvcAfyltf10Me5E61pfhxM0a4Ufjr5z9NtSlXpwadeSUnFqP6zWsAbwBJ
 dU0apeZSGT2J+CuDzwyBmBkN3kT0i/97C8Yd7/K2lhy+GR148Zn6X6Cwk3C8LIwd
 w1dcXnoN50zk5FqC72GYGUFJEFYrlmmmeT9jQohNFURWlawYZ1HGJoXb3oQzA9j7
 HFM1Eor8UdlAMtvQ2aNGeHRorHVqsoSpzWZbQs5sCTL6qh69/ufKJzKRa/eAMm5k
 Fnf+hEuALhEe2S7EvbaHC04xvZie0HXoJR91+Tk4I9FUYXuxJojKbwLPKWMcr/p4
 ZXBTVdiUxWwd7Ey5Ckt9xNWmVwFKAruZp+hSYhl+iciyHYNHTjbx+a82+cTmcwd/
 sWSno6EBixqDfhEN4Fo8
 =N6C9
 -----END PGP SIGNATURE-----

Merge tag 'pm+acpi-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "Two fixes here, one revert of a recent ACPICA commit that broke audio
  support on one Dell machine and a fix for a long-standing issue that
  may cause systems to break randomly during boot.

  Specifics:

   - The recent ACPICA commit that set the ACPI _REV return value to 2
     (which is the value always used by Windows and now mandated by the
     spec too) in order to prevent the firmware people from using it to
     play tricks with us caused a serious audio regression to happen on
     Dell XPS 13 (the AML on that machine uses the _REV return value to
     decide how to expose audio to the OS and does that to hide the lack
     of proper support for its I2S audio in Linux), so revert that
     commit for now and we'll revisit the issue in the next cycle.

   - Ensure that the ordering of acpi_reserve_resources() with respect
     to the rest of the ACPI initialization sequence will always be the
     same, or the IO or memory region occupied by the ACPI fixed
     registers may be assigned to a PCI host bridge as a result of a
     race and random breakage ensues going forward"

* tag 'pm+acpi-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  Revert "ACPICA: Permanently set _REV to the value '2'."
  ACPI / init: Fix the ordering of acpi_reserve_resources()
2015-05-14 18:40:16 -07:00
Linus Torvalds
3c25a75ee0 Merge branch 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull dmi fixes from Jean Delvare.

* 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  firmware: dmi_scan: Fix ordering of product_uuid
  firmware: dmi_scan: Simplified displayed version
2015-05-14 18:02:15 -07:00
Andrew Morton
f98b733e93 drivers/rtc/rtc-armada38x.c: remove unused local `flags'
Reported-by: Fengguang Wu <fengguang.wu@gmail.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-14 17:55:51 -07:00
Rafael J. Wysocki
4de5167ee0 Merge branches 'acpi-init' and 'acpica'
* acpi-init:
  ACPI / init: Fix the ordering of acpi_reserve_resources()

* acpica:
  Revert "ACPICA: Permanently set _REV to the value '2'."
2015-05-15 00:31:23 +02:00
françois romieu
4ffd3c730e net: batch of last_rx update avoidance in ethernet drivers.
None of those drivers uses last_rx for its own needs.

See 4dc89133f49b8cfd77ba7e83f5960aed63aaa99e ("net: add a comment on
netdev->last_rx") for reference.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Zhangfei Gao <zhangfei.gao@linaro.org>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Wingman Kwok <w-kwok2@ti.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-14 17:38:17 -04:00
Hai Li
ec1936eb09 drm/msm/dsi: Simplify the code to get the number of read byte
During cmd rx, only new versions of H/W provide register to read back
the real number of byte returned by panel. For the old versions, reading
this register will not get the right number. In fact, we only need to
assume the returned data is the same size as we expected, because later
we will check the data type to detect error.

Signed-off-by: Hai Li <hali@codeaurora.org>
2015-05-14 16:57:25 -04:00
Hai Li
6f6b287968 drm/msm: Attach assigned encoder to eDP and DSI connectors
drm_mode_connector_attach_encoder() function call is missing
during eDP and DSI connector initialization. As a result,
no encoder is returned by DRM_IOCTL_MODE_GETCONNECTOR system
call. This change is to fix this issue.

Signed-off-by: Hai Li <hali@codeaurora.org>
2015-05-14 16:56:42 -04:00
Greg Kroah-Hartman
569192605f USB-serial fixes for v4.1-rc4
Here are a few device-id changes removing a duplicate entry, refining
 another and adding a third.
 
 Signed-off-by: Johan Hovold <johan@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJVVMnhAAoJEEEN5E/e4bSVd3QP/3b1fb9pYuNwN7BXlmZqdoCF
 OauI0r1+W53pKhcbKibhmsbjIXKnMyzmY7AwcaSsalfMnk9mHARhUUxrmGdgxVtm
 +fc/1QXqbPOkTosnMlYaDx8u4MsfX3v1ThZaXirlwSePvYUnIRo9V8if0bWT8MoL
 s6hyXQZKhOcjA4HBrLSfTdN14ud4LlK/CyBMTVuEKBlyJ0XG6mYxZBnI3z9RDZ9U
 dUY6NwOYqjlAIk+u1AHgtSG2U/wIa5IU4I623oCNx3mHkYO9QfXCTEnC/XBB+DSX
 Z2llMWHSIrQHfhtAJJsRb24pFYo1zHS86VA2DHWgiSL7/TUC8mf44mGoDEs0qzyN
 5g6LmLMTshBSTBzI8w0DDf9Ir529SViWTrXTAQCLOIYDW50F/8kyfObBi0lII1xa
 vVlVBeG/T7cWjSMhjStahXXyAbcpVBJL2BlZnsgtb8jFtAdUUnfWDvNK4mu/DLWC
 +Y1ghaUYHHV8r54NH02jzeNuD/3RvOPTePQlH0hmdTlRTQ9FsTPTJKyZSpOgGjNr
 0FUyYw1GINOIRpKMgoGB4aLZFIJF4La6hOxnlyCSePGSr3MgV20BpFAPaFdsWMca
 PLcNwEBK95BedHi9OhIFGMqP2CZyOXv244hIzXMVJptaVB3rOxhSRQZRrzODnnhR
 2yTnVhFf2Z9nMWyqUljc
 =kack
 -----END PGP SIGNATURE-----

Merge tag 'usb-serial-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus

Johan writes:

USB-serial fixes for v4.1-rc4

Here are a few device-id changes removing a duplicate entry, refining
another and adding a third.

Signed-off-by: Johan Hovold <johan@kernel.org>
2015-05-14 12:43:36 -07:00
Florian Fainelli
ea48b2b8ad net: phy: mdio-gpio: Handle phy_ignore_ta_mask
Update mdiobb_read() to read whether the PHY has a broken turn-around,
and if it does, ignore it to make the read succeeed.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-14 13:40:55 -04:00
Florian Fainelli
ab6016e0c1 of: mdio: Add a "broken-turn-around" property
Some Ethernet PHY devices/switches may not properly release the MDIO bus
during turn-around time, and fail to drive it low, which can be seen by
some controllers as a read failure, while the data clocked in is still
correct.

Add a boolean property "broken-turn-around" which is parsed by the
generic MDIO bus probing code and will set the corresponding bit in the
MDIO bus phy_ignore_ta_mask bitmask for MDIO bus drivers to utilize that
information.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-14 13:40:55 -04:00
Brian Norris
db7c727402 mtd: readtest: don't clobber error reports
Commit 2a6a28e7922c ("mtd: Make MTD tests cancelable") accidentally
clobbered any read failure reports.

Coverity CID #1296020

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2015-05-14 09:56:31 -07:00
Venkata Duvvuru
760c295e0e be2net: Support for OS2BMC.
OS2BMC feature will allow the server to communicate with the on-board
BMC/idrac (Baseboard Management Controller) over the LOM via
standard Ethernet.

When OS2BMC feature is enabled, the LOM will filter traffic coming
from the host. If the destination MAC address matches the iDRAC MAC
address, it will forward the packet to the NC-SI side band interface
for iDRAC processing. Otherwise, it would send it out on the wire to
the external network. Broadcast and multicast packets are sent on the
side-band NC-SI channel and on the wire as well. Some of the packet
filters are not supported in the NIC and hence driver will identify
such packets and will hint the NIC to send those packets to the BMC.
This is done by duplicating packets on the management ring. Packets
are sent to the management ring, by setting mgmt bit in the wrb header.
The NIC will forward the packets on the management ring to the BMC
through the side-band NC-SI channel.

Please refer to this online document for more details,
http://www.dell.com/downloads/global/products/pedge/
os_to_bmc_passthrough_a_new_chapter_in_system_management.pdf

Signed-off-by: Venkat Duvvuru <VenkatKumar.Duvvuru@Emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-14 12:21:42 -04:00
Venkata Duvvuru
954f6825ee be2net: Report a "link down" to the stack when a fatal error or fw reset happens.
When an error (related to HW or FW) is detected on a function, the driver
must pro-actively report a "link down" to the stack so that a possible
failover can be initiated. This is being done currently only for some
HW errors. This patch reports a "link down" even for fatal FW errors and
EEH errors.

Signed-off-by: Venkat Duvvuru <VenkatKumar.Duvvuru@Emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-14 12:21:41 -04:00
Venkata Duvvuru
29e9122b3a be2net: Export board temperature using hwmon-sysfs interface.
Ethtool statistics is not the right place to display board temperature.
This patch adds support to export die temperature of devices supported
by be2net driver via the sysfs hwmon interface.

Signed-off-by: Venkat Duvvuru <VenkatKumar.Duvvuru@Emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-14 12:21:41 -04:00
Rob Clark
13f15565f7 drm/msm: setup vram after component_bind_all()
First of all, we don't want -EPROBE_DEFER when trying to bind children
to cause us to forget to free our vram.  And second we don't want vram
allocation fail to trigger _unbind_all() before _bind_all().

Signed-off-by: Rob Clark <robdclark@gmail.com>
2015-05-14 11:50:39 -04:00
Rob Clark
ff431fa4d9 drm/msm/dsi: use pr_err_ratelimited
When things go badly we can get a lot of these error irqs.  Let's not
DoS the user.

Signed-off-by: Rob Clark <robdclark@gmail.com>
2015-05-14 11:50:38 -04:00
Stephane Viau
7194b62c8c drm/msm: fix unbalanced DRM framebuffer init/destroy
When msm_framebuffer_init() fails before calling drm_framebuffer_init(),
drm_framebuffer_cleanup() [called in msm_framebuffer_destroy()]
is still being called even though drm_framebuffer_init() was not
called for that buffer. Thus a NULL pointer derefencing:

[  247.529691] Unable to handle kernel NULL pointer dereference at virtual address 0000027c
...
[  247.563996] PC is at __mutex_lock_slowpath+0x94/0x3a8
...
[  247.823025] [<c07c3c78>] (__mutex_lock_slowpath) from [<c07c3fac>] (mutex_lock+0x20/0x3c)
[  247.831186] [<c07c3fac>] (mutex_lock) from [<c0347cf0>] (drm_framebuffer_cleanup+0x18/0x38)
[  247.839520] [<c0347cf0>] (drm_framebuffer_cleanup) from [<c036d138>] (msm_framebuffer_destroy+0x48/0x100)
[  247.849066] [<c036d138>] (msm_framebuffer_destroy) from [<c036d580>] (msm_framebuffer_init+0x1e8/0x228)
[  247.858439] [<c036d580>] (msm_framebuffer_init) from [<c036d630>] (msm_framebuffer_create+0x70/0x134)
[  247.867642] [<c036d630>] (msm_framebuffer_create) from [<c03493ec>] (internal_framebuffer_create+0x67c/0x7b4)
[  247.877537] [<c03493ec>] (internal_framebuffer_create) from [<c034ce34>] (drm_mode_addfb2+0x20/0x98)
[  247.886650] [<c034ce34>] (drm_mode_addfb2) from [<c034071c>] (drm_ioctl+0x240/0x420)
[  247.894378] [<c034071c>] (drm_ioctl) from [<c011df7c>] (do_vfs_ioctl+0x4e4/0x5a4)
...

Signed-off-by: Stephane Viau <sviau@codeaurora.org>
[plus initialize msm_fb to NULL to -Rob]
Signed-off-by: Rob Clark <robdclark@gmail.com>
2015-05-14 11:48:54 -04:00
Dave Airlie
bed447e7d1 drm/radeon: don't do mst probing if MST isn't enabled.
This causes an oops as we haven't initialised the mst
layer.

Reported-by: Dave Jones <<davej@codemonkey.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-05-14 11:46:47 -04:00
Stephane Viau
fe34464df5 drm/msm/mdp5: Fix iteration on INTF config array
The current iteration in get_dsi_id_from_intf() is wrong:
instead of iterating until hw_cfg->intf.count, we need to iterate
until MDP5_INTF_NUM_MAX here.

Let's take the example of msm8x16:

 hw_cfg->intf.count = 1
 intfs[0] = INTF_Disabled
 intfs[1] = INTF_DSI

If we stop iterating once i reaches hw_cfg->intf.count (== 1),
we will miss the test for intfs[1].

Actually, this hw_cfg->intf.count entry is quite confusing and is not
(or *should not be*) used anywhere else; let's remove it.

Signed-off-by: Stephane Viau <sviau@codeaurora.org>
2015-05-14 11:29:20 -04:00
Hai Li
651ad3f52b drm/msm/dsi: Fixup missing *break* statement during cmd rx
Signed-off-by: Hai Li <hali@codeaurora.org>
2015-05-14 11:28:58 -04:00
Julia Lawall
6128f1bec4 drm/msm/dp: fix error return code
Return a negative error code on failure.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
2015-05-14 11:28:41 -04:00
Archit Taneja
a2ca77898e drm: msm: Fix build when legacy fbdev support isn't set
The DRM_KMS_FB_HELPER config is selected only when DRM_MSM_FBDEV config is
selected. The driver accesses drm_fb_helper_* functions even when legacy fbdev
support is disabled in msm. Wrap around these functions with #ifdef checks to
prevent build break.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
2015-05-14 11:25:09 -04:00
Stephane Viau
981371f326 drm/msm/dsi: Fix a couple more 64-bit build warnings
Avoid such errors at compilation time:
	format '%d' expects argument of type 'int', but argument 3 has type 'size_t'

Signed-off-by: Stephane Viau <sviau@codeaurora.org>
2015-05-14 11:19:51 -04:00
Thierry Reding
fc99f97af2 drm/msm: Fix a couple of 64-bit build warnings
Avoid casts from pointers to fixed-size integers to prevent the compiler
from warning. Print virtual memory addresses using %p instead. Also turn
a couple of %d/%x specifiers into %zu/%zd/%zx to avoid further warnings
due to mismatched format strings.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
2015-05-14 11:19:25 -04:00
Jean Delvare
5c1ac56b51 firmware: dmi_scan: Fix ordering of product_uuid
In function dmi_present(), dmi_walk_early() calls dmi_table(), which
calls dmi_decode(), which ultimately calls dmi_save_uuid(). This last
function makes a decision based on the value of global variable
dmi_ver. The problem is that this variable is set right _after_
dmi_walk_early() returns. So dmi_save_uuid() always sees dmi_ver == 0
regardless of the actual version implemented.

This causes /sys/class/dmi/id/product_uuid to always use the old
ordering even on systems implementing DMI/SMBIOS 2.6 or later, which
should use the new ordering.

This is broken since kernel v3.8 for legacy DMI implementations and
since kernel v3.10 for SMBIOS 2 implementations. SMBIOS 3
implementations with the 64-bit entry point are not affected.

The first breakage does not matter much as in practice legacy DMI
implementations are always for versions older than 2.6, which is when
the UUID ordering changed. The second breakage is more problematic as
it affects the vast majority of x86 systems manufactured since 2009.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: 9f9c9cbb6057 ("drivers/firmware/dmi_scan.c: fetch dmi version from SMBIOS if it exists")
Fixes: 79bae42d51a5 ("dmi_scan: refactor dmi_scan_machine(), {smbios,dmi}_present()")
Acked-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Artem Savkov <artem.savkov@gmail.com>
Cc: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Cc: stable@vger.kernel.org [v3.10+]
2015-05-14 14:40:50 +02:00
Jean Delvare
c24930457d firmware: dmi_scan: Simplified displayed version
The trailing .x adds no information for the reader, and if anyone
tries to parse that line, this is more work as they have 3 different
formats to handle instead of 2. Plus, this makes backporting fixes
harder.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: 95be58df74a5 ("firmware: dmi_scan: Use full dmi version for SMBIOS3")
Cc: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
2015-05-14 14:40:50 +02:00
Dan Carpenter
a104a6b309 net: macb: OR vs AND typos
The bitwise tests are always true here because it uses '|' where '&' is
intended.

Fixes: 98b5a0f4a228 ('net: macb: Add support for jumbo frames')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-14 00:49:09 -04:00
Dmitry Tunin
ec0810d2ac Bluetooth: ath3k: add support of 04ca:300f AR3012 device
BugLink: https://bugs.launchpad.net/bugs/1449730

T:  Bus=01 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#=  3 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=04ca ProdID=300f Rev=00.01
C:  #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I:  If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb

Signed-off-by: Dmitry Tunin <hanipouspilot@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-05-13 23:04:20 +02:00
Wen-chien Jesse Sung
2054111b10 Bluetooth: btusb: Add support for 0cf3:e007
Device 0cf3:e007 is one of the QCA ROME family.

T:  Bus=01 Lev=01 Prnt=01 Port=05 Cnt=02 Dev#=  3 Spd=12   MxCh= 0
D:  Ver= 2.01 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0cf3 ProdID=e007 Rev= 0.01
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Signed-off-by: Wen-chien Jesse Sung <jesse.sung@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-05-13 22:37:45 +02:00
Wen-chien Jesse Sung
ca79f23205 Bluetooth: ath3k: Add a new ID 0cf3:e006 to ath3k list
Device info in /sys/kernel/debug/usb/devices:

T:  Bus=01 Lev=01 Prnt=01 Port=05 Cnt=02 Dev#=  3 Spd=12   MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0cf3 ProdID=e006 Rev= 0.01
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Signed-off-by: Wen-chien Jesse Sung <jesse.sung@canonical.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-05-13 22:37:45 +02:00
John W. Linville
2d07dc79fe geneve: add initial netdev driver for GENEVE tunnels
This is an initial implementation of a netdev driver for GENEVE
tunnels.  This implementation uses a fixed UDP port, and only supports
point-to-point links with specific partner endpoints.  Only IPv4
links are supported at this time.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13 15:59:13 -04:00
Jiri Pirko
59346afe7a flow_dissector: change port array into src, dst tuple
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13 15:19:47 -04:00
Jiri Pirko
06635a35d1 flow_dissect: use programable dissector in skb_flow_dissect and friends
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13 15:19:47 -04:00
Jiri Pirko
1bd758eb1c net: change name of flow_dissector header to match the .c file name
add couple of empty lines on the way.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13 15:19:45 -04:00
Edward Cree
3de1b5137c sfc: suppress some MCDI error messages in PTP
Also, remove a needless netif_err() from efx_ptp_update_stats() - if the
 MCDI fails it'll print its own error message, we don't need another that
 adds no information.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13 15:11:51 -04:00
Edward Cree
b133638909 sfc: nicer log message on PTP probe fail
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13 15:11:51 -04:00
Greg Kroah-Hartman
ec94efcdad The usual mixed bag of fixes for IIO in the 4.1 cycle.
Second version of this pull request as a small fix to a fix turned
 up before Greg pulled it for a cc10001 patch near the top of the tree.
 
 One core fix
 
 * Set updated for a iio kfifo was incorrectly set to false during a failed
   update, resulting in atttempts to repeat the failed operation appearing
   to succeed.
 
 This time I've decided to list the driver fixes in alphabetical order rather
 than 'randomly'.
 
 * axp288_adc - a recent change added a check for valid info masks when
   reading channels from consumer drivers.
 * bmp280 - temperature compensation was failing to read the tfine value, hence
   causing a temperature of 0 to always be returned and incorrect presure
   measurements.
 * cc10001 - Fix channel number mapping when some channels are reserved for
   remote CPUs. Fix an issue with the use of the power-up/power-down register
   (basically wrong polarity). Fix an issue due to the missinterpretting the
   return value from regulator_get_voltage. Add a delay before the start bit
   as recommended for the hardware to avoid data corruption.
 * hid pressure - fix channel spec of modfiied, but no modifier (which makes no
   sense!)
 * hid proximity - fix channel spec of modified, but no modifier (which makes
   no sense!). Fix a memory leak in the probe function.
 * mcp320x - occasional incorrect readings on dma using spi busses due to
   cacheline corruption. Fixed by forcing ___cacheline_aligned for the buffers.
 * mma9551 - buffer overrun fix (miss specified maximum length of buffers)
 * mma9553 - endian fix on status message. Add an enable element for activity
   channel. Input checking for activity period to avoid rather unpredictable
   results.
 * spmi-vadc - fix an overflow in the output value normalization seen on some
   boards.
 * st-snesors - oops due to use of a mutex that is not yet initialized during
   probe.
 * xilinx adc - Some wrong register addresses, a wrong address for vccaux
   channel, incorrect scale on VREFP and incorrect sign on VREFN.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJVUllEAAoJEFSFNJnE9BaIq7MP/1BLv6u7MWh1FITay4aBSR16
 o8x7fmqbXoVSNz44cU3aZ//MJOfGNZQM220iA+e01PjmS3Jqr3HxSBLI/XosVEq8
 om40h7/esiYWP61u8yZeSXr74K25dUpaz9c4Zl+/2BRYlUAPEh3b9DraXN9dE8Rs
 u0AoGnYxnPAAYEbNUinKQLDw2BoQoTBX3QgRPNJsWL2BapAAyg9JNxm7JMKJateb
 dMP0LyJ7puVqfeDLb2XzNq8eaMbBrRMIj7LNJGOO8EvzCZEC029kSWlGUAgeXYgW
 XJdj0WZ8fmYw8OVzvgci5ODVS7RXqb22j2hjA2cx/20tFDt2WjGaQAwbQckWmVJx
 cZXzPY89wvqm5jpEey79GSAP8rx7PGy7SxFl0zmuqrdXte81W7ArvGwERJBQgEWa
 VR7WA3MnJjPQtyRRC0Y/6jwe+SdbmM50JmRzB7ApMf3G3sbAdEFp0rcNe181+S9V
 AmQK4OyBP9xVgnlNlglAKeDgNuG7w/2Bp8TFXaDX+1JQP4eM1GmoDyje4/x9WOsx
 hH+Ord9Vbyy8UjFq5tHS3444bmg8mYtYnWIH7+8XImvwhhyzDx82MVkqX2S37n+T
 tMQA04ntt/r68i6KsKVGP8QFftSNJcnFxXUMr4SPigomdaooe0v6Vl7w82kxFL5o
 Im6bayZ29fOuJWJ2Rslb
 =PiG+
 -----END PGP SIGNATURE-----

Merge tag 'iio-fixes-for-4.1a-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

The usual mixed bag of fixes for IIO in the 4.1 cycle.

Second version of this pull request as a small fix to a fix turned
up before Greg pulled it for a cc10001 patch near the top of the tree.

One core fix

* Set updated for a iio kfifo was incorrectly set to false during a failed
  update, resulting in atttempts to repeat the failed operation appearing
  to succeed.

This time I've decided to list the driver fixes in alphabetical order rather
than 'randomly'.

* axp288_adc - a recent change added a check for valid info masks when
  reading channels from consumer drivers.
* bmp280 - temperature compensation was failing to read the tfine value, hence
  causing a temperature of 0 to always be returned and incorrect presure
  measurements.
* cc10001 - Fix channel number mapping when some channels are reserved for
  remote CPUs. Fix an issue with the use of the power-up/power-down register
  (basically wrong polarity). Fix an issue due to the missinterpretting the
  return value from regulator_get_voltage. Add a delay before the start bit
  as recommended for the hardware to avoid data corruption.
* hid pressure - fix channel spec of modfiied, but no modifier (which makes no
  sense!)
* hid proximity - fix channel spec of modified, but no modifier (which makes
  no sense!). Fix a memory leak in the probe function.
* mcp320x - occasional incorrect readings on dma using spi busses due to
  cacheline corruption. Fixed by forcing ___cacheline_aligned for the buffers.
* mma9551 - buffer overrun fix (miss specified maximum length of buffers)
* mma9553 - endian fix on status message. Add an enable element for activity
  channel. Input checking for activity period to avoid rather unpredictable
  results.
* spmi-vadc - fix an overflow in the output value normalization seen on some
  boards.
* st-snesors - oops due to use of a mutex that is not yet initialized during
  probe.
* xilinx adc - Some wrong register addresses, a wrong address for vccaux
  channel, incorrect scale on VREFP and incorrect sign on VREFN.
2015-05-13 11:51:14 -07:00
David S. Miller
b04096ff33 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Four minor merge conflicts:

1) qca_spi.c renamed the local variable used for the SPI device
   from spi_device to spi, meanwhile the spi_set_drvdata() call
   got moved further up in the probe function.

2) Two changes were both adding new members to codel params
   structure, and thus we had overlapping changes to the
   initializer function.

3) 'net' was making a fix to sk_release_kernel() which is
   completely removed in 'net-next'.

4) In net_namespace.c, the rtnl_net_fill() call for GET operations
   had the command value fixed, meanwhile 'net-next' adjusted the
   argument signature a bit.

This also matches example merge resolutions posted by Stephen
Rothwell over the past two days.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13 14:31:43 -04:00
Justin Cormack
7f460d30c8 fix missing copy_from_user in macvtap
Fix missing copy_from_user in macvtap SIOCSIFHWADDR ioctl.

Signed-off-by: Justin Cormack <justin@netbsd.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13 14:21:36 -04:00
Scott Feldman
42275bd8fc switchdev: don't use anonymous union on switchdev attr/obj structs
Older gcc versions (e.g.  gcc version 4.4.6) don't like anonymous unions
which was causing build issues on the newly added switchdev attr/obj
structs.  Fix this by using named union on structs.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Reported-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13 14:20:59 -04:00
Benjamin Tissoires
3c0213d17a Input: elantech - fix semi-mt protocol for v3 HW
When the v3 hardware sees more than one finger, it uses the semi-mt
protocol to report the touches. However, it currently works when
num_fingers is 0, 1 or 2, but when it is 3 and above, it sends only 1
finger as if num_fingers was 1.

This confuses userspace which knows how to deal with extra fingers
when all the slots are used, but not when some are missing.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=90101

Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-05-13 10:31:22 -07:00
Dmitry Torokhov
22ffc3e42a Input: sx8654 - fix memory allocation check
We have been testing wrong variable when trying to make sure that input
allocation succeeded.

Reported by Coverity (CID 1295918).

Acked-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-05-13 10:29:33 -07:00
Scott Feldman
7a7ee5312d switchdev: sparse warning: pass ipv4 fib dst as network-byte order
And let driver convert it to host-byte order as needed.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13 12:26:27 -04:00
Christoph Hellwig
3fd61b2099 nvme: fix kernel memory corruption with short INQUIRY buffers
If userspace asks for an INQUIRY buffer smaller than 36 bytes, the SCSI
translation layer will happily write past the end of the INQUIRY buffer
allocation.

This is fairly easily reproducible by running the libiscsi test
suite and then starting an xfstests run.

Fixes: 4f1982 ("NVMe: Update SCSI Inquiry VPD 83h translation")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-05-13 10:22:12 -04:00