Commit graph

691,473 commits

Author SHA1 Message Date
Raju Lakkaraju
65feddd5b9 ethtool: Core impl for ETHTOOL_PHY_DOWNSHIFT tunable
Adding validation support for the ETHTOOL_PHY_DOWNSHIFT. Functional
implementation needs to be done in the individual PHY drivers.

Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 12:12:14 -05:00
Raju Lakkaraju
607c702914 ethtool: (uapi) Add ETHTOOL_PHY_DOWNSHIFT to PHY tunables
For operation in cabling environments that are incompatible with
1000BASE-T, PHY device may provide an automatic link speed downshift
operation. When enabled, the device automatically changes its 1000BASE-T
auto-negotiation to the next slower speed after a configured number of
failed attempts at 1000BASE-T.  This feature is useful in setting up in
networks using older cable installations that include only pairs A and B,
and not pairs C and D.

Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com>
Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 12:12:14 -05:00
Raju Lakkaraju
968ad9da7e ethtool: Implements ETHTOOL_PHY_GTUNABLE/ETHTOOL_PHY_STUNABLE
Adding get_tunable/set_tunable function pointer to the phy_driver
structure, and uses these function pointers to implement the
ETHTOOL_PHY_GTUNABLE/ETHTOOL_PHY_STUNABLE ioctls.

Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 12:12:14 -05:00
Raju Lakkaraju
0d27f4e437 ethtool: (uapi) Add ETHTOOL_PHY_GTUNABLE and ETHTOOL_PHY_STUNABLE
Defines a generic API to get/set phy tunables. The API is using the
existing ethtool_tunable/tunable_type_id types which is already being used
for mac level tunables.

Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microsemi.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Allan W. Nielsen <allan.nielsen@microsemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 12:12:13 -05:00
Max Kellermann
f686c14364 [media] stb0899: move code to "detach" callback
Ensure that STB0899_POSTPROC_GPIO_POWER is set synchronously.

Signed-off-by: Max Kellermann <max.kellermann@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 15:10:41 -02:00
Max Kellermann
d812b3caea [media] dvb_frontend: add "detach" callback
Prepare for making "release" asynchronous (via kref).  Some operations
may need to be run synchronously in dvb_frontend_detach(), and that's
why we need a "detach" callback.

Signed-off-by: Max Kellermann <max.kellermann@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 15:09:41 -02:00
David S. Miller
511d5d5b65 Merge branch 'mlx5-next'
Saeed Mahameed says:

====================
Mellanox 100G mlx5 update 2016-11-15

This series contains four humble mlx5 features.

From Gal,
 - Add the support for PCIe statistics and expose them in ethtool

From Huy,
 - Add the support for port module events reporting and statistics
 - Add the support for driver version setting into FW (for display purposes only)

From Mohamad,
 - Extended the command interface cache flexibility

This series was generated against commit
6a02f5eb6a ("Merge branch 'mlxsw-i2c")

V2:
 - Changed plain "unsigned" to "unsigned int"
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 12:08:58 -05:00
Gal Pressman
9c7262399b net/mlx5e: Expose PCIe statistics to ethtool
This patch exposes two groups of PCIe counters:
- Performance counters.
- Timers and states counters.
Queried with ethtool -S <devname>.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 12:08:58 -05:00
Gal Pressman
7f503169ca net/mlx5: Add MPCNT register infrastructure
Add the needed infrastructure for future use of MPCNT register.

Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 12:08:58 -05:00
Huy Nguyen
012e50e109 net/mlx5: Set driver version into firmware
If driver_version capability bit is enabled, set driver version
to firmware after the init HCA command, for display purposes.

Example of driver version: "Linux,mlx5_core,3.0-1"

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 12:08:57 -05:00
Saeed Mahameed
0dbc6fe09f net/mlx5: Set driver version infrastructure
Add driver_version capability bit is enabled, and set driver
version command in mlx5_ifc firmware header.  The only purpose
of this command is to store a driver version/OS string in FW
to be reported and displayed in various management systems,
such as IPMI/BMC.

Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 12:08:57 -05:00
Huy Nguyen
bedb7c909c net/mlx5e: Add port module event counters to ethtool stats
Add port module event counters to ethtool -S command

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 12:08:57 -05:00
Huy Nguyen
d4eb4cd78b net/mlx5: Add handling for port module event
For each asynchronous port module event:
  1. print with ratelimit to the dmesg log
  2. increment the corresponding event counter

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 12:08:57 -05:00
Huy Nguyen
4ce3bf2fa8 net/mlx5: Port module event hardware structures
Add hardware structures and constants definitions needed for module
events support.

Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 12:08:57 -05:00
Mohamad Haj Yahia
0ac3ea7089 net/mlx5: Make the command interface cache more flexible
Add more cache command size sets and more entries for each set based on
the current commands set different sizes and commands frequency.

Fixes: e126ba97db ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 12:08:56 -05:00
Max Kellermann
967d8e8f4c [media] dvb_frontend: merge the two dvb_frontend_detach() versions
This code duplication is confusing and error prone.  Let's merge them
by moving the release/dvb_detach call into one function with one

Signed-off-by: Max Kellermann <max.kellermann@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 15:08:49 -02:00
Max Kellermann
194ced7a5a [media] dvb_frontend: tuner_ops.release returns void
It is not clear what this return value means.  All implemenations
return 0, and the one caller ignores the value.  Let's remove this
useless return value completely.

Signed-off-by: Max Kellermann <max.kellermann@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 15:07:26 -02:00
Max Kellermann
22a613e898 [media] dvb_frontend: merge duplicate dvb_tuner_ops.release implementations
Most release callback functions are identical: free the "tuner_priv"
and clear it.  Let's eliminate some bloat by providing this simple
implementation in the dvb_frontend library.

Signed-off-by: Max Kellermann <max.kellermann@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 15:05:44 -02:00
Max Kellermann
4d5030b69b [media] dvb-core/en50221: use dvb_remove_device()
Commit da677fe143 ("[media] dvb-core/en50221: use kref to manage
struct dvb_ca_private") moved the dvb_unregister_device() call to the
kref callback, but that left lots of stale device state visible to
userspace (e.g. in sysfs).  By using dvb_remove_device() and
dvb_free_device() instead of dvb_unregister_device(), we can avoid
that.

Signed-off-by: Max Kellermann <max.kellermann@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 15:03:45 -02:00
Arnd Bergmann
c496f6762b remoteproc: wcnss-pil: add QCOM_SMD dependency
When qcom_smd is a loadable module and wcnss-pil is built-in,
we get a link error:

drivers/remoteproc/qcom_wcnss_pil.o: In function `wcnss_smd_remove':
qcom_wcnss_iris.c:(.text.wcnss_smd_remove+0x10): undefined reference to `qcom_smd_unregister_edge'
drivers/remoteproc/qcom_wcnss_pil.o: In function `wcnss_smd_probe':
qcom_wcnss_iris.c:(.text.wcnss_smd_probe+0x12): undefined reference to `qcom_smd_register_edge'

This adds a Kconfig dependency to avoid this. We can still allow
build-testing with SMD disabled.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2016-11-18 09:03:43 -08:00
Max Kellermann
1f4ed6cd58 [media] dvbdev: split dvb_unregister_device()
dvb_unregister_device() has a major problem: it combines unregistering
with memory disposal.  Sometimes, it is necessary to unregister a
device, but no memory can be freed yet, because a process still has a
(stale) file handle.  Therefore, we need to split
dvb_unregister_device().  This will allow sanitizing a few callers.

With my new design, dvb_unregister_device() appears misnamed, but to
reduce patch noise, I'm not renaming it just yet.

Signed-off-by: Max Kellermann <max.kellermann@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 15:02:39 -02:00
Max Kellermann
bd336e6344 [media] dvb: make DVB frontend *_ops instances "const"
These are immutable.  Making them "const" allows the compiler to move
them to the "rodata" section.

Note that cxd2841er_t_c_ops cannot be made "const", because
cxd2841er_attach() modifies it.  Ouch!

[mchehab@s-opensource.com: fix merge conflicts]
Signed-off-by: Max Kellermann <max.kellermann@gmail.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 15:00:22 -02:00
Linus Torvalds
c1717701be sound fixes for 4.9-rc6
Three trivial fixes: a regression fix for ASRock mobo, a
 use-after-free fix at hot-unplug of USB-audio, and a quirk for new
 Thinkpad models.
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Merge tag 'sound-4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Three trivial fixes:

  A regression fix for ASRock mobo, a use-after-free fix at hot-unplug
  of USB-audio, and a quirk for new Thinkpad models"

* tag 'sound-4.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb-audio: Fix use-after-free of usb_device at disconnect
  ALSA: hda - Fix mic regression by ASRock mobo fixup
  ALSA: hda - add a new condition to check if it is thinkpad
2016-11-18 08:56:47 -08:00
David S. Miller
7a8bca043c Merge branch 'sfc-tso-v2'
Edward Cree says:

====================
sfc: Firmware-Assisted TSO version 2

The firmware on 8000 series SFC NICs supports a new TSO API ("FATSOv2"), and
 7000 series NICs will also support this in an imminent release.  This series
 adds driver support for this TSO implementation.
The series also removes SWTSO, as it's now equivalent to GSO.  This does not
 actually remove very much code, because SWTSO was grotesquely intertwingled
 with FATSOv1, which will also be removed once 7000 series supports FATSOv2.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 11:55:39 -05:00
Edward Cree
46d1efd852 sfc: remove Software TSO
It gives no advantage over GSO now that xmit_more exists.  If we find
 ourselves unable to handle a TSO skb (because our TXQ doesn't have a
 TSOv2 context and the NIC doesn't support TSOv1), hand it back to GSO.
 Also do that if the TSO handler fails with EINVAL for any other reason.
As Falcon-architecture NICs don't support any firmware-assisted TSO,
 they no longer advertise TSO feature flags at all.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 11:55:38 -05:00
Edward Cree
e638ee1d0a sfc: handle failure to allocate TSOv2 contexts
If we fail to init the TXQ because of insufficient TSOv2 contexts,
try again with TSOv2 disabled.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 11:55:38 -05:00
Bert Kenward
e9117e5099 sfc: Firmware-Assisted TSO version 2
Add support for FATSOv2 to the driver. FATSOv2 offloads far more of the task
 of TCP segmentation to the firmware, such that we now just pass a single
 super-packet to the NIC. This means TSO has a great deal in common with a
 normal DMA transmit, apart from adding a couple of option descriptors.
 NIC-specific checks have been moved off the fast path and in to
 initialisation where possible.

This also moves FATSOv1/SWTSO to a new file (tx_tso.c).  The end of transmit
 and some error handling is now outside TSO, since it is common with other
 code.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 11:55:38 -05:00
Edward Cree
e17705c43b sfc: Update EF10 register definitions
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 11:55:37 -05:00
Edward Cree
ece0cc1793 sfc: Update MCDI protocol definitions
Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 11:55:37 -05:00
Linus Torvalds
bd2bc2b8e6 GPIO fixes for the v4.9 series:
- Finally, after being puzzled by a bunch of recurrent UML
   build failures on randconfigs from the build robot, Keno
   Fischer nailed it: GPIO_DEVRES is optional and depends on
   HAS_IOMEM even though many users just unconditionally rely
   on it to be available. And it *should* be available:
   garbage collection is nice for this and it *certainly* has
   nothing to do with having IOMEM. So we got rid of it, and
   now the UML builds should JustWork(TM).
 
 - Do not call .get_direction() on sleeping GPIO chips on the
   fastpath when locking GPIOs for interrupts: it is done
   from atomic context, no way.
 
 - Some driver fixes.
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Merge tag 'gpio-v4.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fixes from Linus Walleij:
 "These are hopefully the last GPIO fixes for v4.9. The most important
  is that it fixes the UML randconfig builds that have been nagging me
  for some time and me being confused about where the problem was really
  sitting, now this fix give this nice feeling that everything is solid
  and builds fine.

  Summary:

   - Finally, after being puzzled by a bunch of recurrent UML build
     failures on randconfigs from the build robot, Keno Fischer nailed
     it: GPIO_DEVRES is optional and depends on HAS_IOMEM even though
     many users just unconditionally rely on it to be available. And it
     *should* be available: garbage collection is nice for this and it
     *certainly* has nothing to do with having IOMEM. So we got rid of
     it, and now the UML builds should JustWork(TM).

   - Do not call .get_direction() on sleeping GPIO chips on the fastpath
     when locking GPIOs for interrupts: it is done from atomic context,
     no way.

   - Some driver fixes"

* tag 'gpio-v4.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: Remove GPIO_DEVRES option
  gpio: tc3589x: fix up .get_direction()
  gpio: do not double-check direction on sleeping chips
  gpio: pca953x: Move memcpy into mutex lock for set multiple
  gpio: pca953x: Fix corruption of other gpios in set_multiple.
2016-11-18 08:47:47 -08:00
Max Kellermann
c183d3584b [media] rc-main: clear rc_map.name in ir_free_table()
rc_unregister_device() will first call ir_free_table(), and later
device_del(); however, the latter causes a call to rc_dev_uevent(),
which prints rc_map.name, which at this point has already bee freed.

This fixes a use-after-free bug found with KASAN.

As reported by Shuah:

 "I am seeing the following when I do rmmod on au0828

  BUG: KASAN: use-after-free in string+0x170/0x1f0 at addr ffff8801bd513000
  Read of size 1 by task rmmod/1831
  CPU: 1 PID: 1831 Comm: rmmod Tainted: G        W       4.9.0-rc5 #5
  Hardware name: Hewlett-Packard HP ProBook 6475b/180F, BIOS 68TTU Ver. F.04 08/03/2012
  ffff8801aea2f680 ffffffff81b37ad3 ffff8801fa403b80 ffff8801bd513000
  ffff8801aea2f6a8 ffffffff8156c301 ffff8801aea2f738 ffff8801bd513000
  ffff8801fa403b80 ffff8801aea2f728 ffffffff8156c59a ffff8801aea2f770
  Call Trace:
  dump_stack+0x67/0x94
  [<ffffffff8156c301>] kasan_object_err+0x21/0x70
  [<ffffffff8156c59a>] kasan_report_error+0x1fa/0x4d0
  [<ffffffffa116f05f>] ? au0828_exit+0x10/0x21 [au0828]
  [<ffffffff8156c8b3>] __asan_report_load1_noabort+0x43/0x50
  [<ffffffff81b58b20>] ? string+0x170/0x1f0
  [<ffffffff81b58b20>] string+0x170/0x1f0
  [<ffffffff81b621c4>] vsnprintf+0x374/0x1c50
  [<ffffffff81b61e50>] ? pointer+0xa80/0xa80
  [<ffffffff8156b676>] ? save_stack+0x46/0xd0
  [<ffffffff81566faa>] ? __kmalloc+0x14a/0x2a0
  [<ffffffff81b3d70a>] ? kobject_get_path+0x9a/0x200
  [<ffffffff81b408c2>] ? kobject_uevent_env+0x282/0xca0
  [<ffffffff81b412eb>] ? kobject_uevent+0xb/0x10
  [<ffffffff81f10104>] ? device_del+0x434/0x6d0
  [<ffffffffa0fea717>] ? rc_unregister_device+0x177/0x240 [rc_core]
  [<ffffffffa116eeb0>] ? au0828_rc_unregister+0x60/0xb0 [au0828]

 The problem is fixed with this patch on Linux 4.9-rc4"

Signed-off-by: Max Kellermann <max.kellermann@gmail.com>
Tested-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 14:31:34 -02:00
Peter Chen
b68002db13 [media] media: platform: ti-vpe: call of_node_put on non-null pointer
It should call of_node_put on non-null poiner.

Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Acked-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 14:23:33 -02:00
Linus Torvalds
12b70ec0d3 i915 fixes + 2 mediatek regressions
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Merge tag 'drm-fixes-for-v4.9-rc6-brown-paper-bag' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "i915 fixes + 2 mediatek regressions.

  So some i915 fixes came in which I thought they might so I'm sending
  those along with two reverts for two patches to the mediatek driver
  that didn't seem to build so well, I've fixed up my -fixes ARM build
  and .config so I could see it, but yes brown paper bag time"

* tag 'drm-fixes-for-v4.9-rc6-brown-paper-bag' of git://people.freedesktop.org/~airlied/linux:
  Revert "drm/mediatek: set vblank_disable_allowed to true"
  Revert "drm/mediatek: fix a typo of OD_CFG to OD_RELAYMODE"
  drm/i915: Assume non-DP++ port if dvo_port is HDMI and there's no AUX ch specified in the VBT
  drm/i915: Refresh that status of MST capable connectors in ->detect()
  drm/i915: Grab the rotation from the passed plane state for VLV sprites
  drm/i915: Mark CPU cache as dirty when used for rendering
2016-11-18 08:22:48 -08:00
Dan Carpenter
c9205e18b4 [media] blackfin: check devm_pinctrl_get() for errors
devm_pinctrl_get() can fail so we should check for that.

Fixes: 0a6824bc10 ('[media] v4l2: blackfin: select proper pinctrl state in ppi_set_params if CONFIG_PINCTRL is enabled')

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 14:22:27 -02:00
Andi Shyti
5911f62926 [media] lirc_dev: remove compat_ioctl assignment
There is no need to check for CONFIG_COMPAT and consequently
assign the compat_ioctl.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 14:16:09 -02:00
Bjorn Andersson
1a494c20d1 Merge branch 'topic/st_fdma' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/slave-dma into rproc-next
* 'topic/st_fdma' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/slave-dma:
  dmaengine: st_fdma: Revert: "Revert: Update st_fdma to 'depends on REMOTEPROC'"
2016-11-18 08:13:56 -08:00
Robert Jarzmik
74e382b870 ARM: dts: pxa: add pxa27x cpu operating points
Add the relevant data taken from the PXA27x Electrical, Mechanical, and
Thermal Specfication. This will be input data for cpufreq-dt driver.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
2016-11-18 17:09:45 +01:00
Robert Jarzmik
93ab7c8486 ARM: dts: pxa: add pxa25x cpu operating points
Add the relevant data taken from the PXA 25x Electrical, Mechanical, and
Thermal Specfication. This will be input data for cpufreq-dt driver.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
2016-11-18 17:09:44 +01:00
Robert Jarzmik
4852a25eab ARM: dts: pxa: fix gpio0 and gpio1 interrupts
Since gpio-pxa was redesigned to differenciate gpio0, gpio1 and the
gpio-mux interrupt as in the hardware IP, the device-tree description
should be amended so that interrupts from gpio0 and gpio1 can be mapped
to consumers.

This is especially true on lubbock and mainstone devices where gpio0 is
multiplexed on pxa_cplds for ethernet, sa1111, usb udc, and other
devices.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-11-18 17:09:44 +01:00
Vijay Kumar
1e0ced0948 ARM: dts: pxa: fix no. of gpio cells in the pxa gpio binding documentation
Fix the no. of gpio cells in pxa gpio binding documentation.

The no. of gpio cells for the pxa gpio is actually 2. But is
incorrectly specified as 1, in the binding documentation. From the
driver code, the second cell specifies the standard flags as described
in gpio.txt.

Signed-off-by: Vijay Kumar B. <vijaykumar@zilogic.com>
[fixed subject line]
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-11-18 17:09:43 +01:00
Robert Jarzmik
209f4d7a3d ARM: dts: pxa: add pxa25x .dtsi file
This file describes pxa25x SoCs. Not all devices are listed yet, only
the subset which was already tested with a lubbock board.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-11-18 17:09:37 +01:00
Maciej S. Szmigiero
5a91206ff0 [media] saa7134: fix warm Medion 7134 EEPROM read
When saa7134 module driving a Medion 7134 card is reloaded reads of this
card EEPROM (required for automatic detection of tuner model) will be
corrupted due to I2C gate in DVB-T demod being left closed.
This sometimes also happens on first saa7134 module load after a warm
reboot.

Fix this by opening this I2C gate before doing EEPROM read during i2c
initialization.

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 14:04:53 -02:00
Alexey Dobriyan
c7d03a00b5 netns: make struct pernet_operations::id unsigned int
Make struct pernet_operations::id unsigned.

There are 2 reasons to do so:

1)
This field is really an index into an zero based array and
thus is unsigned entity. Using negative value is out-of-bound
access by definition.

2)
On x86_64 unsigned 32-bit data which are mixed with pointers
via array indexing or offsets added or subtracted to pointers
are preffered to signed 32-bit data.

"int" being used as an array index needs to be sign-extended
to 64-bit before being used.

	void f(long *p, int i)
	{
		g(p[i]);
	}

  roughly translates to

	movsx	rsi, esi
	mov	rdi, [rsi+...]
	call 	g

MOVSX is 3 byte instruction which isn't necessary if the variable is
unsigned because x86_64 is zero extending by default.

Now, there is net_generic() function which, you guessed it right, uses
"int" as an array index:

	static inline void *net_generic(const struct net *net, int id)
	{
		...
		ptr = ng->ptr[id - 1];
		...
	}

And this function is used a lot, so those sign extensions add up.

Patch snipes ~1730 bytes on allyesconfig kernel (without all junk
messing with code generation):

	add/remove: 0/0 grow/shrink: 70/598 up/down: 396/-2126 (-1730)

Unfortunately some functions actually grow bigger.
This is a semmingly random artefact of code generation with register
allocator being used differently. gcc decides that some variable
needs to live in new r8+ registers and every access now requires REX
prefix. Or it is shifted into r12, so [r12+0] addressing mode has to be
used which is longer than [r8]

However, overall balance is in negative direction:

	add/remove: 0/0 grow/shrink: 70/598 up/down: 396/-2126 (-1730)
	function                                     old     new   delta
	nfsd4_lock                                  3886    3959     +73
	tipc_link_build_proto_msg                   1096    1140     +44
	mac80211_hwsim_new_radio                    2776    2808     +32
	tipc_mon_rcv                                1032    1058     +26
	svcauth_gss_legacy_init                     1413    1429     +16
	tipc_bcbase_select_primary                   379     392     +13
	nfsd4_exchange_id                           1247    1260     +13
	nfsd4_setclientid_confirm                    782     793     +11
		...
	put_client_renew_locked                      494     480     -14
	ip_set_sockfn_get                            730     716     -14
	geneve_sock_add                              829     813     -16
	nfsd4_sequence_done                          721     703     -18
	nlmclnt_lookup_host                          708     686     -22
	nfsd4_lockt                                 1085    1063     -22
	nfs_get_client                              1077    1050     -27
	tcf_bpf_init                                1106    1076     -30
	nfsd4_encode_fattr                          5997    5930     -67
	Total: Before=154856051, After=154854321, chg -0.00%

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 10:59:15 -05:00
CrazyCat
5fa88151ec [media] dvb-usb-cxusb: Geniatech T230 - resync TS FIFO after lock
This patch fix streaming issue for Geniatech T230/PT360.

Signed-off-by: CrazyCat <crazycat69@narod.ru>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 13:46:28 -02:00
Eric Dumazet
e68b6e50fa udp: enable busy polling for all sockets
UDP busy polling is restricted to connected UDP sockets.

This is because sk_busy_loop() only takes care of one NAPI context.

There are cases where it could be extended.

1) Some hosts receive traffic on a single NIC, with one RX queue.

2) Some applications use SO_REUSEPORT and associated BPF filter
   to split the incoming traffic on one UDP socket per RX
queue/thread/cpu

3) Some UDP sockets are used to send/receive traffic for one flow, but
they do not bother with connect()

This patch records the napi_id of first received skb, giving more
reach to busy polling.

Tested:

lpaa23:~# echo 70 >/proc/sys/net/core/busy_read
lpaa24:~# echo 70 >/proc/sys/net/core/busy_read

lpaa23:~# for f in `seq 1 10`; do ./super_netperf 1 -H lpaa24 -t UDP_RR -l 5; done

Before patch :
   27867   28870   37324   41060   41215
   36764   36838   44455   41282   43843
After patch :
   73920   73213   70147   74845   71697
   68315   68028   75219   70082   73707

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-18 10:44:31 -05:00
Peter Griffin
bfc303e7be [media] c8sectpfe: Remove clk_disable_unprepare hacks
Now that CLK_PROC_STFE is defined as a critical clock in
DT, we can remove the commented clk_disable_unprepare from
the c8sectpfe driver. This means we now have balanced
clk*enable/disable calls in the driver, but on STiH407
family the clock in reality will never actually be disabled.

This is due to a HW bug where once the IP has been configured
and the SLIM core is running, disabling the clock causes a
unrecoverable bus lockup.

Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 13:40:33 -02:00
Jean-Baptiste Abbadie
8be135d052 [media] Staging: media: radio-bcm2048: Remove FSF address from GPL notice
Removes the superfluous statement about writing to the FSF in the GPL
notice

Signed-off-by: Jean-Baptiste Abbadie <jb@abbadie.fr>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 13:40:01 -02:00
Jean-Baptiste Abbadie
3194e858c5 [media] Staging: media: radio-bcm2048: Fix indentation
Align multiple lines statement with parentheses

Signed-off-by: Jean-Baptiste Abbadie <jb@abbadie.fr>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 13:39:42 -02:00
Jean-Baptiste Abbadie
24dc974d1c [media] Staging: media: radio-bcm2048: Fix symbolic permissions
This replaces the S_* style permissions by numbers for the __ATTR macros

Signed-off-by: Jean-Baptiste Abbadie <jb@abbadie.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 13:39:14 -02:00
Bjorn Helgaas
cf590b8732 vgaarb: Downgrade userspace-triggerable messages to debug
To avoid userspace-triggerable dmesg spam, downgrade messages in the sysfs
write parsing code to debug level.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161118141158.32415.71438.stgit@bhelgaas-glaptop.roam.corp.google.com
2016-11-18 16:29:52 +01:00