deliverable/linux.git
8 years agoMerge tag 'usb-ci-v4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter...
Greg Kroah-Hartman [Wed, 4 May 2016 17:25:58 +0000 (10:25 -0700)] 
Merge tag 'usb-ci-v4.7-rc1' of git://git./linux/kernel/git/peter.chen/usb into usb-next

Hi Greg, below are changes for chipidea and OTG FSM, no major changes.
Some for documentation, some for tiny changes, thanks.

8 years agodoc: usb: chipidea: update the doc for OTG FSM
Peter Chen [Wed, 13 Apr 2016 07:16:52 +0000 (15:16 +0800)] 
doc: usb: chipidea: update the doc for OTG FSM

Since we have added otg version and HNP polling support, update
related documentation.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
8 years agoMerge tag 'phy-for-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux...
Greg Kroah-Hartman [Tue, 3 May 2016 21:49:46 +0000 (14:49 -0700)] 
Merge tag 'phy-for-4.7' of git://git./linux/kernel/git/kishon/linux-phy into usb-testing

Kishon writes:

phy: for 4.7

*) Add a new PHY driver for USB2 PHY on Northstar SoC
*) Add support for Broadcom NS2 SATA3 PHY in existing
   Broadcom SATA3 PHY driver
*) Add support for MIPI DPHYs in Exynos5420-compatible
   (5420, 5422 and 5800) and Exynos5433 SoCs
*) Add support for USB3 PHY on mt2701
*) Add extcon support for Renesas R-car USB2 PHY driver
*) Misc cleanups

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agoUSB: usbfs: fix potential infoleak in devio
Kangjie Lu [Tue, 3 May 2016 20:32:16 +0000 (16:32 -0400)] 
USB: usbfs: fix potential infoleak in devio

The stack object “ci” has a total size of 8 bytes. Its last 3 bytes
are padding bytes which are not initialized and leaked to userland
via “copy_to_user”.

Signed-off-by: Kangjie Lu <kjlu@gatech.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: dwc3: gadget: fix mask and shift order in DWC3_DCFG_NUMP()
Dan Carpenter [Tue, 3 May 2016 07:49:00 +0000 (10:49 +0300)] 
usb: dwc3: gadget: fix mask and shift order in DWC3_DCFG_NUMP()

In the original DWC3_DCFG_NUMP() was always zero.  It looks like the
intent was to shift first and then do the mask.

Fixes: 2a58f9c12bb3 ('usb: dwc3: gadget: disable automatic calculation of ACK TP NUMP')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agosisusbvga: correct speed testing
Oliver Neukum [Mon, 2 May 2016 11:09:30 +0000 (13:09 +0200)] 
sisusbvga: correct speed testing

Allow for SS+

Signed-off-by: Oliver Neukum <ONeukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: misc: usbtest: fix pattern tests for scatterlists.
Mathias Nyman [Mon, 2 May 2016 08:39:03 +0000 (11:39 +0300)] 
usb: misc: usbtest: fix pattern tests for scatterlists.

The current implemenentation restart the sent pattern for each entry in
the sg list. The receiving end expects a continuous pattern, and test
will fail unless scatterilst entries happen to be aligned with the
pattern

Fix this by calculating the pattern byte based on total sent size
instead of just the current sg entry.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Fixes: 8b5249019352 ("[PATCH] USB: usbtest: scatterlist OUT data pattern testing")
Cc: <stable@vger.kernel.org> # v2.6.18+
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: renesas_usbhs: fix signed-unsigned return
Sudip Mukherjee [Sat, 30 Apr 2016 18:29:40 +0000 (19:29 +0100)] 
usb: renesas_usbhs: fix signed-unsigned return

The return type of usbhsp_setup_pipecfg() was u16 but it was returning
a negative value (-EINVAL). Lets have an additional argument which will
have pipecfg and just return the status (success or error) as the return
from the function.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agoUSB: leave LPM alone if possible when binding/unbinding interface drivers
Alan Stern [Fri, 29 Apr 2016 19:25:17 +0000 (15:25 -0400)] 
USB: leave LPM alone if possible when binding/unbinding interface drivers

When a USB driver is bound to an interface (either through probing or
by claiming it) or is unbound from an interface, the USB core always
disables Link Power Management during the transition and then
re-enables it afterward.  The reason is because the driver might want
to prevent hub-initiated link power transitions, in which case the HCD
would have to recalculate the various LPM parameters.  This
recalculation takes place when LPM is re-enabled and the new
parameters are sent to the device and its parent hub.

However, if the driver does not want to prevent hub-initiated link
power transitions then none of this work is necessary.  The parameters
don't need to be recalculated, and LPM doesn't need to be disabled and
re-enabled.

It turns out that disabling and enabling LPM can be time-consuming,
enough so that it interferes with user programs that want to claim and
release interfaces rapidly via usbfs.  Since the usbfs kernel driver
doesn't set the disable_hub_initiated_lpm flag, we can speed things up
and get the user programs to work by leaving LPM alone whenever the
flag isn't set.

And while we're improving the way disable_hub_initiated_lpm gets used,
let's also fix its kerneldoc.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Matthew Giassa <matthew@giassa.net>
CC: Mathias Nyman <mathias.nyman@intel.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: adding names db to port operation
Nobuo Iwata [Tue, 22 Mar 2016 07:31:03 +0000 (16:31 +0900)] 
usbip: adding names db to port operation

Adding names database to port command.

BEFORE) 'unknown' for vendor and product string.

Imported USB devices
====================
Port 00: <Port in Use> at Low Speed(1.5Mbps)
       unknown vendor : unknown product (03f0:0224)
       3-1 -> usbip://10.0.2.15:3240/5-1
           -> remote bus/dev 005/002

AFTER) Most vendor string will be converted.

Imported USB devices
====================
Port 00: <Port in Use> at Low Speed(1.5Mbps)
       Hewlett-Packard : unknown product (03f0:0224)
       3-1 -> usbip://10.0.2.15:3240/5-1
           -> remote bus/dev 005/002

Signed-off-by: Nobuo Iwata <nobuo.iwata@fujixerox.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agophy: exynos-mipi-video: Add support for Exynos 5420 and 5433 SoCs
Marek Szyprowski [Wed, 23 Mar 2016 11:09:18 +0000 (12:09 +0100)] 
phy: exynos-mipi-video: Add support for Exynos 5420 and 5433 SoCs

This patch adds support for MIPI DPHYs found in Exynos5420-compatible
(5420, 5422 and 5800) and Exynos5433 SoCs. Those SoCs differs from
earlier by different offset of MIPI DPHY registers in PMU controllers
(Exynos 5420-compatible case) or by moving MIPI DPHY reset registers to
separate system register controllers (Exynos 5433 case). In both case
also additional 5th PHY (MIPI CSIS 2) has been added.

Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agophy: exynos-mipi-video: Rewrite handling of phy registers
Marek Szyprowski [Wed, 23 Mar 2016 11:09:17 +0000 (12:09 +0100)] 
phy: exynos-mipi-video: Rewrite handling of phy registers

Controlling Exynos MIPI DPHY is done by handling 2 registers: one for
phy reset and one for enabling it. This patch moves definitions of those
2 registers to speparate exynos_mipi_phy_desc structure, which can be
defined separately for each PHY for each supported hardware variant.
This code rewrite is needed to add support for newer Exynos SoCs, which
have MIPI PHY related registers at different offsets or even different
register regions.

Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agophy: exynos-mipi-video: Drop support for direct access to PMU
Sylwester Nawrocki [Wed, 23 Mar 2016 11:09:16 +0000 (12:09 +0100)] 
phy: exynos-mipi-video: Drop support for direct access to PMU

There is no need to support access to the PMU through memory ioresource
as now access through PMU regmap should only be used.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agophy: bcm-ns-usb2: new driver for USB 2.0 PHY on Northstar
Rafał Miłecki [Thu, 14 Apr 2016 09:37:43 +0000 (11:37 +0200)] 
phy: bcm-ns-usb2: new driver for USB 2.0 PHY on Northstar

Northstar is a family of SoCs used in home routers. They have USB 2.0
and 3.0 controllers with PHYs that need to be properly initialized.
This driver provides PHY init support in a generic way and can be bound
with an EHCI controller driver.
There are (just a few) registers being defined in bcma header. It's
because DMU/CRU registers will be also needed in other drivers. We will
need them e.g. in PCIe controller/PHY driver and at some point probably
in clock driver for BCM53573 chipset. By using include/linux/bcma/ we
avoid code duplication.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agophy: rockhip-usb: Remove CLK_IS_ROOT
Stephen Boyd [Wed, 20 Apr 2016 01:17:26 +0000 (18:17 -0700)] 
phy: rockhip-usb: Remove CLK_IS_ROOT

This flag is a no-op now (see commit 47b0eeb3dc8a "clk: Deprecate
CLK_IS_ROOT", 2016-02-02) so remove it.

Cc: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agophy: phy-mt65xx-usb3: add support for mt2701 platform
Chunfeng Yun [Wed, 20 Apr 2016 00:14:02 +0000 (08:14 +0800)] 
phy: phy-mt65xx-usb3: add support for mt2701 platform

Add a new OF device ID for mt2701

Some register settings to avoid RX sensitivity level degradation
which may arise on mt8173 platform are separated from other
platforms.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agodt-bindings: phy-mt65xx-usb: add support for mt2701 platform
Chunfeng Yun [Wed, 20 Apr 2016 00:14:01 +0000 (08:14 +0800)] 
dt-bindings: phy-mt65xx-usb: add support for mt2701 platform

Add a new compatible string for "mt2701"

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agophy: rcar-gen3-usb2: add extcon support
Yoshihiro Shimoda [Fri, 29 Apr 2016 08:52:25 +0000 (14:22 +0530)] 
phy: rcar-gen3-usb2: add extcon support

This patch adds extcon support for otg related channel.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agophy: rcar-gen3-usb2: Add vbus-supply to handle VBUS on/off
Yoshihiro Shimoda [Thu, 3 Mar 2016 10:09:05 +0000 (19:09 +0900)] 
phy: rcar-gen3-usb2: Add vbus-supply to handle VBUS on/off

To handle the VBUS on/off by a regulator driver, this patch adds
regulator APIs calling in the driver and description about vbus-supply
in the rcar-gen3-phy-usb2.txt.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agophy: rcar-gen3-usb2: remove unnecesary struct rcar_gen3_data
Yoshihiro Shimoda [Thu, 3 Mar 2016 10:09:04 +0000 (19:09 +0900)] 
phy: rcar-gen3-usb2: remove unnecesary struct rcar_gen3_data

Since this driver uses the struct rcar_gen3_data in struct rcar_gen3_chan
only, we can remove the rcar_gen3_data.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agodt-bindings: phy: bindings document for common Broadcom SATA3 PHY driver
Anup Patel [Mon, 28 Mar 2016 04:48:28 +0000 (10:18 +0530)] 
dt-bindings: phy: bindings document for common Broadcom SATA3 PHY driver

This patch:
1. Renames DT bindings document of Broadcom STB SATA3 PHY driver to
common Broadcom SATA3 PHY driver bindings document
2. Adds bindings info for NS2 SATA3 PHY

Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agophy: Add support for NS2 SATA3 PHY in Broadcom SATA3 PHY driver
Anup Patel [Mon, 28 Mar 2016 04:48:27 +0000 (10:18 +0530)] 
phy: Add support for NS2 SATA3 PHY in Broadcom SATA3 PHY driver

This patch adds support for Broadcom NS2 SATA3 PHY in existing
Broadcom SATA3 PHY driver.

Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agoUSB: EHCI: make all debugging depend on CONFIG_DYNAMIC_DEBUG
Alan Stern [Fri, 29 Apr 2016 19:19:56 +0000 (15:19 -0400)] 
USB: EHCI: make all debugging depend on CONFIG_DYNAMIC_DEBUG

The debugging facilities in ehci-dbg.c follow an uneven pattern.  Some
of them are protected by "#ifdef CONFIG_DYNAMIC_DEBUG" and some
aren't, presumably in the hope of having some of the debugging output
available in any configuration.

This leads to build problems when dynamic debugging isn't configured.
Rather than try to keep this complicated state of affairs, let's just
make everything dependent on CONFIG_DYNAMIC_DEBUG.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: usbip: Avoid NULL pointer dereference in case of error
Krzysztof Opasiak [Fri, 29 Apr 2016 10:34:13 +0000 (12:34 +0200)] 
usb: usbip: Avoid NULL pointer dereference in case of error

One line above we have checked that udc is NULL so we shouldn't
dereference it while printing error message.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: vudc: make dev_desc attribute binary
Igor Kotrasinski [Fri, 29 Apr 2016 11:41:24 +0000 (13:41 +0200)] 
usbip: vudc: make dev_desc attribute binary

We read a struct usb_device_descriptor from it, so make it an actual
binary attribute.

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@gmail.com>
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Tested-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: Add driver for UCSI
Heikki Krogerus [Thu, 21 Apr 2016 12:43:40 +0000 (15:43 +0300)] 
usb: Add driver for UCSI

USB Type-C Connector System Software Interface (UCSI) is
specification that defines the registers and data structures
that can be used to control USB Type-C ports on a system.
UCSI is used on several Intel Broxton SoC based platforms.
Things that UCSI can be used to control include at least USB
Data Role swapping, Power Role swapping and controlling of
Alternate Modes on top of providing general details about
the port and the partners that are attached to it.

The initial purpose of the UCSI driver is to make sure USB
is in host mode on desktop and server systems that are USB
dual role capable, and provide UCSI interface.

The goal is to integrate the driver later to an USB Type-C
framework for Linux kernel, and at the same time add support
for more extensive USB Type-C port control that UCSI offers,
for example data role swapping, power role swapping,
Alternate Mode control etc.

The UCSI specification is public can be obtained from here:
http://www.intel.com/content/www/us/en/io/universal-serial-bus/usb-type-c-ucsi-spec.html

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agophy: Rename phy-brcmstb-sata driver to phy-brcm-sata driver
Anup Patel [Mon, 28 Mar 2016 04:48:26 +0000 (10:18 +0530)] 
phy: Rename phy-brcmstb-sata driver to phy-brcm-sata driver

Currently, we have a common SATA3 PHY driver for all Broadcom
STB SoCs. This driver can be extended and re-used for Broadcom
iProc SoCs having same SATA3 PHY.

This patch renames existing Broadcom STB SATA3 PHY driver to
common Broadcom SATA3 PHY driver to share this PHY driver across
Broadcom SoCs.

Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agophy: rcar-gen3-usb2, rcar-gen2: Use ARCH_RENESAS
Simon Horman [Mon, 7 Mar 2016 01:14:24 +0000 (10:14 +0900)] 
phy: rcar-gen3-usb2, rcar-gen2: Use ARCH_RENESAS

Make use of ARCH_RENESAS in place of ARCH_SHMOBILE.
A now redundant dependency on OF is also dropped.

This is part of an ongoing process to migrate from ARCH_SHMOBILE to
ARCH_RENESAS the motivation for which being that RENESAS seems to be a more
appropriate name than SHMOBILE for the majority of Renesas ARM based SoCs.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agophy: rcar-gen3-usb2: add fallback binding
Simon Horman [Mon, 7 Mar 2016 01:58:41 +0000 (10:58 +0900)] 
phy: rcar-gen3-usb2: add fallback binding

In the case of Renesas R-Car hardware we know that there are generations of
SoCs, e.g. Gen 2 and Gen 3. But beyond that its not clear what the
relationship between IP blocks might be. For example, I believe that
r8a7790 is older than r8a7791 but that doesn't imply that the latter is a
descendant of the former or vice versa.

We can, however, by examining the documentation and behaviour of the
hardware at run-time observe that the current driver implementation appears
to be compatible with the IP blocks on SoCs within a given generation.

For the above reasons and convenience when enabling new SoCs a
per-generation fallback compatibility string scheme being adopted for
drivers for Renesas SoCs.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agophy: rcar-gen2: add fallback binding
Simon Horman [Mon, 7 Mar 2016 01:58:40 +0000 (10:58 +0900)] 
phy: rcar-gen2: add fallback binding

In the case of Renesas R-Car hardware we know that there are generations of
SoCs, e.g. Gen 2 and Gen 3. But beyond that its not clear what the
relationship between IP blocks might be. For example, I believe that
r8a7790 is older than r8a7791 but that doesn't imply that the latter is a
descendant of the former or vice versa.

We can, however, by examining the documentation and behaviour of the
hardware at run-time observe that the current driver implementation appears
to be compatible with the IP blocks on SoCs within a given generation.

For the above reasons and convenience when enabling new SoCs a
per-generation fallback compatibility string scheme being adopted for
drivers for Renesas SoCs.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
8 years agousb: core: move root hub's device node assignment after it is added to bus
Peter Chen [Mon, 25 Apr 2016 01:57:18 +0000 (09:57 +0800)] 
usb: core: move root hub's device node assignment after it is added to bus

When the root hub device is added to the bus, it tries to get pins
information from pinctrl (see pinctrl_bind_pins, at really_probe), if
the pin information is described at DT, it will show below error since
the root hub's device node is the same with controller's, but controller's
pin has already been requested when it is added to platform bus.

imx6q-pinctrl 20e0000.iomuxc: pin MX6Q_PAD_GPIO_1 already
        requested by 2184000.usb; cannot claim for usb1
imx6q-pinctrl 20e0000.iomuxc: pin-137 (usb1) status -22
imx6q-pinctrl 20e0000.iomuxc: could not request pin 137
        (MX6Q_PAD_GPIO_1) from group usbotggrp-3 on device 20e0000.iomuxc
usb usb1: Error applying setting, reverse things back

To fix this issue, we move the root hub's device node assignment (equals
to contrller's) after device is added to bus, we only need to know root
hub's device node information after the device under root hub is created,
so this movement will not affect current function.

Signed-off-by: Peter Chen <peter.chen@nxp.com>
Reported-by: Lars Steubesand <lars.steubesand@philips.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agoUse "foo *bar" instead of "foo * bar".
Sandhya Bankar [Sun, 24 Apr 2016 03:55:40 +0000 (09:25 +0530)] 
Use "foo *bar" instead of "foo * bar".

Use "foo *bar" instead of "foo * bar".

Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: Remove unnecessary space before function pointer arguments.
Sandhya Bankar [Sun, 24 Apr 2016 06:30:40 +0000 (12:00 +0530)] 
usb: Remove unnecessary space before function pointer arguments.

Remove unnecessary space before function pointer arguments.

Signed-off-by: Sandhya Bankar <bankarsandhya512@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: core: hub: hub_port_init lock controller instead of bus
Chris Bainbridge [Mon, 25 Apr 2016 12:48:38 +0000 (13:48 +0100)] 
usb: core: hub: hub_port_init lock controller instead of bus

The XHCI controller presents two USB buses to the system - one for USB2
and one for USB3. The hub init code (hub_port_init) is reentrant but
only locks one bus per thread, leading to a race condition failure when
two threads attempt to simultaneously initialise a USB2 and USB3 device:

[    8.034843] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command
[   13.183701] usb 3-3: device descriptor read/all, error -110

On a test system this failure occurred on 6% of all boots.

The call traces at the point of failure are:

Call Trace:
 [<ffffffff81b9bab7>] schedule+0x37/0x90
 [<ffffffff817da7cd>] usb_kill_urb+0x8d/0xd0
 [<ffffffff8111e5e0>] ? wake_up_atomic_t+0x30/0x30
 [<ffffffff817dafbe>] usb_start_wait_urb+0xbe/0x150
 [<ffffffff817db10c>] usb_control_msg+0xbc/0xf0
 [<ffffffff817d07de>] hub_port_init+0x51e/0xb70
 [<ffffffff817d4697>] hub_event+0x817/0x1570
 [<ffffffff810f3e6f>] process_one_work+0x1ff/0x620
 [<ffffffff810f3dcf>] ? process_one_work+0x15f/0x620
 [<ffffffff810f4684>] worker_thread+0x64/0x4b0
 [<ffffffff810f4620>] ? rescuer_thread+0x390/0x390
 [<ffffffff810fa7f5>] kthread+0x105/0x120
 [<ffffffff810fa6f0>] ? kthread_create_on_node+0x200/0x200
 [<ffffffff81ba183f>] ret_from_fork+0x3f/0x70
 [<ffffffff810fa6f0>] ? kthread_create_on_node+0x200/0x200

Call Trace:
 [<ffffffff817fd36d>] xhci_setup_device+0x53d/0xa40
 [<ffffffff817fd87e>] xhci_address_device+0xe/0x10
 [<ffffffff817d047f>] hub_port_init+0x1bf/0xb70
 [<ffffffff811247ed>] ? trace_hardirqs_on+0xd/0x10
 [<ffffffff817d4697>] hub_event+0x817/0x1570
 [<ffffffff810f3e6f>] process_one_work+0x1ff/0x620
 [<ffffffff810f3dcf>] ? process_one_work+0x15f/0x620
 [<ffffffff810f4684>] worker_thread+0x64/0x4b0
 [<ffffffff810f4620>] ? rescuer_thread+0x390/0x390
 [<ffffffff810fa7f5>] kthread+0x105/0x120
 [<ffffffff810fa6f0>] ? kthread_create_on_node+0x200/0x200
 [<ffffffff81ba183f>] ret_from_fork+0x3f/0x70
 [<ffffffff810fa6f0>] ? kthread_create_on_node+0x200/0x200

Which results from the two call chains:

hub_port_init
 usb_get_device_descriptor
  usb_get_descriptor
   usb_control_msg
    usb_internal_control_msg
     usb_start_wait_urb
      usb_submit_urb / wait_for_completion_timeout / usb_kill_urb

hub_port_init
 hub_set_address
  xhci_address_device
   xhci_setup_device

Mathias Nyman explains the current behaviour violates the XHCI spec:

 hub_port_reset() will end up moving the corresponding xhci device slot
 to default state.

 As hub_port_reset() is called several times in hub_port_init() it
 sounds reasonable that we could end up with two threads having their
 xhci device slots in default state at the same time, which according to
 xhci 4.5.3 specs still is a big no no:

 "Note: Software shall not transition more than one Device Slot to the
  Default State at a time"

 So both threads fail at their next task after this.
 One fails to read the descriptor, and the other fails addressing the
 device.

Fix this in hub_port_init by locking the USB controller (instead of an
individual bus) to prevent simultaneous initialisation of both buses.

Fixes: 638139eb95d2 ("usb: hub: allow to process more usb hub events in parallel")
Link: https://lkml.org/lkml/2016/2/8/312
Link: https://lkml.org/lkml/2016/2/4/748
Signed-off-by: Chris Bainbridge <chris.bainbridge@gmail.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb/host/: const data must use __initconst not __initdata
Nicolas Pitre [Wed, 27 Apr 2016 17:28:32 +0000 (13:28 -0400)] 
usb/host/: const data must use __initconst not __initdata

Init data marked const should be annotated with __initconst for
correctness and not __initdata.  This also fixes LTO builds that
otherwise fail with section mismatch errors.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: devio: declare usbdev_vm_ops as static
Michele Curti [Wed, 27 Apr 2016 19:23:07 +0000 (21:23 +0200)] 
usb: devio: declare usbdev_vm_ops as static

usbdev_vm_ops is used in devio.c only, so declare it as static

Signed-off-by: Michele Curti <michele.curti@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: misc: usbtest: fix error of urb allocation
Chunfeng Yun [Thu, 28 Apr 2016 03:42:21 +0000 (11:42 +0800)] 
usb: misc: usbtest: fix error of urb allocation

urb allocation will fail when usbtest_alloc_urb() tries to
allocate zero length buffer, but it doesn't need it in fact,
so just skips buffer allocation in the case.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: core: buffer: avoid NULL pointer dereferrence
Chunfeng Yun [Thu, 28 Apr 2016 03:42:20 +0000 (11:42 +0800)] 
usb: core: buffer: avoid NULL pointer dereferrence

NULL pointer dereferrence will happen when class driver
wants to allocate zero length buffer and pool_max[0]
can't be used, so simply returns NULL in the case.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: vudc: fix Kconfig dependencies
Arnd Bergmann [Thu, 28 Apr 2016 12:42:50 +0000 (14:42 +0200)] 
usbip: vudc: fix Kconfig dependencies

With the addition of VUDC, the USBIP stack can now be used on
configurations without USB host support, but trying to build
it with USB gadget support disabled fails with

drivers/usb/built-in.o: In function `vep_dequeue':
vudc_main.c:(.text+0xa6ddc): undefined reference to `usb_gadget_giveback_request'
drivers/usb/built-in.o: In function `nuke':
vudc_main.c:(.text+0xa6ea8): undefined reference to `usb_gadget_giveback_request'
drivers/usb/built-in.o: In function `vudc_device_reset':
vudc_main.c:(.text+0xa720c): undefined reference to `usb_gadget_udc_reset'
drivers/usb/built-in.o: In function `vudc_probe':

This addresses both issues, by changing the dependency for USBIP_CORE
to USB_COMMON, and adding additional dependencies on USB or USB_GADGET
for the individual portions as needed.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 9360575c5837 ("usbip: vudc: Add vudc to Kconfig")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: safe completion against unbind operation
Nobuo Iwata [Wed, 27 Apr 2016 06:35:53 +0000 (15:35 +0900)] 
usbip: safe completion against unbind operation

This patch adds a code fragment to ignore completing URBs in closing
connection.

Regarding this patch, 2 execution contexts are related.

1) stub_tx.c: stub_complete() which is called from USB core
1-1) add to unlink list and free URB or
1-2) move to tx list

2) stub_dev.c: stub_shutdown_connection() which is invoked by unbind
operation through sysfs.
2-1) stop TX/RX threads
2-2) close TCP connection and set ud.tcp_socket to NULL
2-3) cleanup pending URBs by stub_device_cleanup_urbs(sdev)
2-4) free unlink list (no lock)

In the race condition, URBs which will be cleared in 2-3) may be
handled in 1).
In case 1-1), it will not be transferred bcause tx threads are stooped
in 2-1).
In case 1-2), may be freed in 2-4).

With this patch, after 2-2), completing URBs in 1) will not be handled
and cleared in 2-3).

The kernel log with this patch is as below.

kernel: usbip_core: usbip_kernel_unlink:792: shutting down tcp_socket
ef61d980
kernel: usbip-host 1-3: free sdev f5df6180
kernel: usbip-host 1-3: free urb f5df6700
kernel: usbip-host 1-3: Enter
kernel: usbip_core: usbip_stop_eh:132: usbip_eh waiting completion 5
kernel: usbip_host: stub_complete:71: complete! status 0
kernel: usbip_host: stub_complete:102: ignore urb for closed connection
e725fc00 (*)
kernel: usbip_host: stub_complete:71: complete! status -2
kernel: usbip-host 1-3: stopped by a call to usb_kill_urb() because of
cleaning up a virtual connection
kernel: usbip-host 1-3: free urb e725fc00 (**)
kernel: usbip-host 1-3: free urb e725e000
kernel: usbip_host: stub_complete:71: complete! status -2
kernel: usbip-host 1-3: stopped by a call to usb_kill_urb() because of
cleaning up a virtual connection
kernel: usbip-host 1-3: free urb e725f800
kernel: usbip_host: stub_complete:71: complete! status -2
kernel: usbip-host 1-3: stopped by a call to usb_kill_urb() because of
cleaning up a virtual connection
kernel: usbip-host 1-3: free urb e725e800
kernel: usbip_host: stub_complete:71: complete! status -2
kernel: usbip-host 1-3: stopped by a call to usb_kill_urb() because of
cleaning up a virtual connection
kernel: usbip-host 1-3: device reset
kernel: usbip-host 1-3: lock for reset
kernel: usbip_host: store_match_busid:178: del busid 1-3
kernel: uvcvideo: Found UVC 1.00 device Venus USB2.0 Camera (056e:700a)
kernel: input: Venus USB2.0 Camera as
/devices/pci0000:00/0000:00:1a.7/usb1/1-3/1-3:1.0/input/input22

(*) skipped with this patch in completion
(**) released in 2-3

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: usbip: vudc: Rename find_endpoint() to vudc_find_endpoint()
Krzysztof Opasiak [Wed, 27 Apr 2016 18:02:07 +0000 (20:02 +0200)] 
usb: usbip: vudc: Rename find_endpoint() to vudc_find_endpoint()

As find_endpoint() is a global funcion rename it to vudc_find_endpoint()
to clearly mark where does it come from.

Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: fix NULL pointer dereference on errors
Alexander Popov [Thu, 28 Apr 2016 10:07:22 +0000 (13:07 +0300)] 
usbip: fix NULL pointer dereference on errors

Fix NULL pointer dereference and obsolete comments forgotten when
usbip server was converted from an interface driver to a device driver.

Signed-off-by: Alexander Popov <alpopov@ptsecurity.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: usbip: vudc: Fix WARN_ON() usage pattern
Krzysztof Opasiak [Wed, 27 Apr 2016 18:00:26 +0000 (20:00 +0200)] 
usb: usbip: vudc: Fix WARN_ON() usage pattern

Fix WARN_ON() macro usage as suggested by Felipe.
Instead of using:
if (cond) {
   WARN_ON(1);
   do_stuff();
}

Use a better pattern with WARN_ON() placed in if condition:

if (WARN_ON(cond))
   do_stuff();

Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agoDocumentation: ABI: Add doc for usbip-vudc attributes
Krzysztof Opasiak [Wed, 27 Apr 2016 17:59:21 +0000 (19:59 +0200)] 
Documentation: ABI: Add doc for usbip-vudc attributes

As vudc provides some new attributes using sysfs infrastructure,
add a suitable documentation file for those attributes.

Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agoMerge tag 'usb-for-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb...
Greg Kroah-Hartman [Thu, 28 Apr 2016 16:32:39 +0000 (09:32 -0700)] 
Merge tag 'usb-for-v4.7' of git://git./linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: changes for v4.7 merge window

Here's the big USB Gadget pull request. This time
not as large as usual with only 57 non-merge
commits.

The most important part here is, again, all the work
on dwc3. This time around we're treating all
endpoints (except for control endpoint) exactly the
same. They all have the same amount of TRBs on the
ring, they all treat the ring as an actual ring with
a link TRB pointing to the head, etc.

We're also helping the host side burst (on
SuperSpeed GEN1 or GEN2 at least) for as long as
possible until the endpoint returns NRDY.

Other than this big TRB ring rework on dwc3, we also
have a dwc3-omap DMA initialization fix, some extra
debugfs files to aid in some odd debug sessions and
a complete removal of our FIFO resizing logic.

We have a new quirk for some dwc3 P3 quirk in some
implementations.

The rest is basically non-critical fixes and the
usual cleanups.

8 years agousb: dwc3: gadget: disable automatic calculation of ACK TP NUMP
Felipe Balbi [Thu, 28 Apr 2016 07:56:28 +0000 (10:56 +0300)] 
usb: dwc3: gadget: disable automatic calculation of ACK TP NUMP

Now that we calculate DCFG.NUMP, we can disable
dwc3's automatic calculation so we maximize our
chances of very high throughtput through the use of
bursts.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
8 years agousb: dwc3: gadget: update DCFG.NumP to max burst size
Felipe Balbi [Tue, 26 Apr 2016 07:49:07 +0000 (10:49 +0300)] 
usb: dwc3: gadget: update DCFG.NumP to max burst size

NumP field of DCFG register is used on NumP field of
ACK TP header and it tells the host how many packets
an endpoint can receive before waiting for
synchronization.

Documentation says it should be set to anything
<=bMaxBurst. Interestingly, however, this setting is
not per-endpoint how it should be (different
endpoints could have different burst sizes), but
things seem to work okay right now.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
8 years agousb: dwc2: Proper cleanup on dr_mode failure
John Youn [Thu, 28 Apr 2016 03:20:56 +0000 (20:20 -0700)] 
usb: dwc2: Proper cleanup on dr_mode failure

Cleanup in probe if we fail to get dr_mode.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
8 years agousb: dwc2: Fixed SOF interrupt enabling/disabling
Sevak Arakelyan [Thu, 28 Apr 2016 03:20:53 +0000 (20:20 -0700)] 
usb: dwc2: Fixed SOF interrupt enabling/disabling

In case of DDMA mode we don't need to get an SOF interrupt so disable
the unmasking of SOF interrupt in DDMA mode.

Signed-off-by: Sevak Arakelyan <sevaka@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
8 years agousb: dwc2: host: Setting qtd to NULL after freeing it
Vardan Mikayelyan [Thu, 28 Apr 2016 03:20:51 +0000 (20:20 -0700)] 
usb: dwc2: host: Setting qtd to NULL after freeing it

This is safety change added while doing slub debugging.

Affected functions:
dwc2_hcd_qtd_unlink_and_free()
_dwc2_hcd_urb_enqueue()

Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
8 years agousb: dwc2: gadget: Prevent handling of host interrupts
Vardan Mikayelyan [Thu, 28 Apr 2016 03:20:48 +0000 (20:20 -0700)] 
usb: dwc2: gadget: Prevent handling of host interrupts

In host slave mode, the core asserts the rxready, txfifoempty interrupts
that get serviced in the gadget irq handler. Prevent servicing of these
when not in the gadget mode of operation.

Signed-off-by: Vardan Mikayelyan <mvardan@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
8 years agousb: dwc2: gadget: Check for ep0 in enable
Vahram Aharonyan [Thu, 28 Apr 2016 03:20:46 +0000 (20:20 -0700)] 
usb: dwc2: gadget: Check for ep0 in enable

Replaced the WARN_ON with a check and return of -EINVAL in the
dwc2_hsotg_ep_enable function if ep0 is passed in.

Signed-off-by: Vahram Aharonyan <vahrama@synopsys.com>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
8 years agousb: dwc3: gadget: give better command return code
Konrad Leszczynski [Fri, 12 Feb 2016 15:21:46 +0000 (15:21 +0000)] 
usb: dwc3: gadget: give better command return code

if Start Transfer command fails, let's try a little
harder to figure out why the command failed and give
slightly better return codes. This will be usefulf
or isochronous endpoints, at least, which could
decide to retry a given request.

Signed-off-by: Konrad Leszczynski <konrad.leszczynski@intel.com>
Signed-off-by: Rafal Redzimski <rafal.f.redzimski@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
8 years agousb: gadget: composite: avoid kernel oops with bad gadgets
Felipe Balbi [Fri, 22 Apr 2016 11:53:47 +0000 (14:53 +0300)] 
usb: gadget: composite: avoid kernel oops with bad gadgets

If a gadget driver loaded to a Superspeed-capable
peripheral controller, using a Superspeed cable,
doesn't provide Superspeed descriptors, we will get
a NULL pointer dereference.

In order to avoid that situation, we will try to
find any valid descriptors we can. If no set of
descriptors is passed in, then we'll let that gadget
oops anyhow.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
8 years agousb: dwc3: pci: pass the platform device as a parameter to dwc3_pci_quirks()
Heikki Krogerus [Fri, 22 Apr 2016 08:17:38 +0000 (11:17 +0300)] 
usb: dwc3: pci: pass the platform device as a parameter to dwc3_pci_quirks()

For convenience, passing the dwc3 platform device as a
parameter to dwc3_pci_quirks() function.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
8 years agousb: dwc3: pci: make build-in device properties available
Heikki Krogerus [Fri, 22 Apr 2016 08:17:37 +0000 (11:17 +0300)] 
usb: dwc3: pci: make build-in device properties available

Setting the ACPI companion before calling dwc3_pci_quirks.
The ACPI companion will be set unconditionally as the
primary fwnode, overriding any previously set primary
fwnode. This will make sure that any build-in properties
added to the platform device will be added as the secondary
fwnode in cases where also ACPI companion exists.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
8 years agousb: dwc3: ep0: sanity check test mode selector
Fei Yang [Wed, 20 Apr 2016 06:08:43 +0000 (09:08 +0300)] 
usb: dwc3: ep0: sanity check test mode selector

In case host sends us an unsupported test mode, we
*must* stall this request. This will tell the host
that the selector is invalid and we won't put the
controller in unsupported test modes which could
have undetermined side-effects.

Signed-off-by: Fei Yang <fei.yang@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
8 years agousb: hcd: do not call whc_clean_up on wch_init call failure
Colin Ian King [Sat, 26 Mar 2016 21:03:53 +0000 (21:03 +0000)] 
usb: hcd: do not call whc_clean_up on wch_init call failure

whc_init already calls whc_clean_up if an error occurs during
the initialization, so calling it again if whc_init fails at
the end of wch_probe will cause double free errors.  Fix this
by bailing out on an whc_init failure to a new label that avoids
doing the duplicated whc_clean_up.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agoUSB: bcma: use simpler devm helper for getting vcc GPIO
Rafał Miłecki [Wed, 23 Mar 2016 11:37:11 +0000 (12:37 +0100)] 
USB: bcma: use simpler devm helper for getting vcc GPIO

Thanks to switching to devm_gpiod_get:
1) We don't have to pass fwnode pointer
2) We can request initial GPIO value at getting call
This was successfully tested on Netgear R6250 (BCM4708).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: host: xhci: plat: finally get rid of xhci_plat_type_is()
Felipe Balbi [Fri, 22 Apr 2016 10:17:17 +0000 (13:17 +0300)] 
usb: host: xhci: plat: finally get rid of xhci_plat_type_is()

Now that there are no more users for
xhci_plat_type_is(), we can safely remove it.

Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: host: xhci: plat: make use of new methods in xhci_plat_priv
Felipe Balbi [Fri, 22 Apr 2016 10:17:16 +0000 (13:17 +0300)] 
usb: host: xhci: plat: make use of new methods in xhci_plat_priv

Now that the code has been refactored enough,
switching over to using ->plat_start() and
->init_quirk() becomes a very simple patch.

After this patch, there are no further uses for
xhci_plat_type_is() which will be removed in a
follow-up patch.

Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: host: xhci: plat: change type of mvebu init_quirk()
Felipe Balbi [Fri, 22 Apr 2016 10:17:15 +0000 (13:17 +0300)] 
usb: host: xhci: plat: change type of mvebu init_quirk()

Just like RCAR's init_quirk() we want mvebu's to use
struct usb_hcd * as argument too. This is another
step towards removing xhci_plat_type_is().

Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: host: xhci: plat: move mvebu init_quirk() to xhci_plat_setup()
Felipe Balbi [Fri, 22 Apr 2016 10:17:14 +0000 (13:17 +0300)] 
usb: host: xhci: plat: move mvebu init_quirk() to xhci_plat_setup()

xhci_plat_setup() is the rightful place for
xhci_mvebu_mbus_init_quirk(), so let's move it there
in order to make it simpler to get rid of
xhci_plat_type_is() later on.

Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: xhci: plat: add ->plat_start() and ->init_quirk() methods
Felipe Balbi [Fri, 22 Apr 2016 10:17:13 +0000 (13:17 +0300)] 
usb: xhci: plat: add ->plat_start() and ->init_quirk() methods

these two methods will be used to hide
platform-specific details so we can get rid of
xhci_plat_type_is() in a later patch.

Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: host: xhci: rcar: retire use of xhci_plat_type_is()
Felipe Balbi [Fri, 22 Apr 2016 10:17:12 +0000 (13:17 +0300)] 
usb: host: xhci: rcar: retire use of xhci_plat_type_is()

We're preparing to remove xhci_plat_type_is() in
favor of a better approach where we define function
pointers ahead of time. This will let us make
assumptions about which platforms we're running on
and which platform-specific functions we should call.

Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
[delete extra comma in function parameters -Mathias]
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: xhci: remove duplicate code of interval checking
Alexandr Ivanov [Fri, 22 Apr 2016 10:17:11 +0000 (13:17 +0300)] 
usb: xhci: remove duplicate code of interval checking

Move duplicate code from xhci_queue_intr_tx()
and xhci_queue_isoc_tx_prepare() to the check_interval() function.

Signed-off-by: Alexandr Ivanov <alexandr.sky@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: xhci: remove duplicate function xhci_urb_to_transfer_ring
Alexandr Ivanov [Fri, 22 Apr 2016 10:17:10 +0000 (13:17 +0300)] 
usb: xhci: remove duplicate function xhci_urb_to_transfer_ring

Remove duplicate function xhci_urb_to_transfer_ring from xhci.c.
We have same function in xhci-ring.c.

Signed-off-by: Alexandr Ivanov <alexandr.sky@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: xhci: merge xhci_queue_bulk_tx and queue_bulk_sg_tx functions
Alexandr Ivanov [Fri, 22 Apr 2016 10:17:09 +0000 (13:17 +0300)] 
usb: xhci: merge xhci_queue_bulk_tx and queue_bulk_sg_tx functions

In drivers/usb/host/xhci-ring.c there are two functions
(xhci_queue_bulk_tx and queue_bulk_sg_tx) that are very similar,
so a lot of code duplication.
This patch merges these functions into to one xhci_queue_bulk_tx.
Also counting the needed TRBs is merged and refactored.

Signed-off-by: Alexandr Ivanov <alexandr.sky@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agodrivers: usb: core: Minimize irq disabling in usb_sg_cancel()
David Mosberger [Tue, 8 Mar 2016 21:42:49 +0000 (14:42 -0700)] 
drivers: usb: core: Minimize irq disabling in usb_sg_cancel()

Restructure usb_sg_cancel() so we don't have to disable interrupts
while cancelling the URBs.

Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: David Mosberger <davidm@egauge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agodrivers: usb: core: Don't disable irqs in usb_sg_wait() during URB submit.
David Mosberger [Tue, 8 Mar 2016 21:42:48 +0000 (14:42 -0700)] 
drivers: usb: core: Don't disable irqs in usb_sg_wait() during URB submit.

usb_submit_urb() may take quite long to execute.  For example, a
single sg list may have 30 or more entries, possibly leading to that
many calls to DMA-map pages.  This can cause interrupt latency of
several hundred micro-seconds.

Avoid the problem by releasing the io->lock spinlock and re-enabling
interrupts before calling usb_submit_urb().  This opens races with
usb_sg_cancel() and sg_complete().  Handle those races by using
usb_block_urb() to stop URBs from being submitted after
usb_sg_cancel() or sg_complete() with error.

Note that usb_unlink_urb() is guaranteed to return -ENODEV if
!io->urbs[i]->dev and since the -ENODEV case is already handled,
we don't have to check for !io->urbs[i]->dev explicitly.

Before this change, reading 512MB from an ext3 filesystem on a USB
memory stick showed a throughput of 12 MB/s with about 500 missed
deadlines.

With this change, reading the same file gave the same throughput but
only one or two missed deadlines.

Signed-off-by: David Mosberger <davidm@egauge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: vudc: Add vudc to Kconfig
Igor Kotrasinski [Tue, 8 Mar 2016 20:49:07 +0000 (21:49 +0100)] 
usbip: vudc: Add vudc to Kconfig

Add the driver to Kconfig to make it visible in menuconfig
and allow people to compile it.

This commit is a result of cooperation between Samsung R&D Institute
Poland and Open Operating Systems Student Society at University
of Warsaw (O2S3@UW) consisting of:

    Igor Kotrasinski <ikotrasinsk@gmail.com>
    Karol Kosik <karo9@interia.eu>
    Ewelina Kosmider <3w3lfin@gmail.com>
    Dawid Lazarczyk <lazarczyk.dawid@gmail.com>
    Piotr Szulc <ps347277@students.mimuw.edu.pl>

Tutor and project owner:
    Krzysztof Opasiak <k.opasiak@samsung.com>

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: tools: Start using VUDC backend in usbip tools
Igor Kotrasinski [Tue, 8 Mar 2016 20:49:06 +0000 (21:49 +0100)] 
usbip: tools: Start using VUDC backend in usbip tools

Modify userspace tools to allow exporting and connecting to vudc.

This commit is a result of cooperation between Samsung R&D Institute
Poland and Open Operating Systems Student Society at University
of Warsaw (O2S3@UW) consisting of:

   Igor Kotrasinski <ikotrasinsk@gmail.com>
   Karol Kosik <karo9@interia.eu>
   Ewelina Kosmider <3w3lfin@gmail.com>
   Dawid Lazarczyk <lazarczyk.dawid@gmail.com>
   Piotr Szulc <ps347277@students.mimuw.edu.pl>

Tutor and project owner:
   Krzysztof Opasiak <k.opasiak@samsung.com>

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Ewelina Kosmider <3w3lfin@gmail.com>
[Various bug fixes and improvements]
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: tools: Add vudc backend to usbip tools
Krzysztof Opasiak [Tue, 8 Mar 2016 20:49:05 +0000 (21:49 +0100)] 
usbip: tools: Add vudc backend to usbip tools

Adds an equivalent of usbip_host_driver for the vudc. Most
of the code is already shared, but this adds some vudc specific
code for getting information about devices.

Based on code created in cooperation with Open Operating Systems
Student Society at University of Warsaw (O2S3@UW) consisting of:

   Igor Kotrasinski <ikotrasinsk@gmail.com>
   Karol Kosik <karo9@interia.eu>
   Ewelina Kosmider <3w3lfin@gmail.com>
   Dawid Lazarczyk <lazarczyk.dawid@gmail.com>
   Piotr Szulc <ps347277@students.mimuw.edu.pl>

Tutor and project owner:
   Krzysztof Opasiak <k.opasiak@samsung.com>

Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: tools: Extract generic code to be shared with vudc backend
Krzysztof Opasiak [Tue, 8 Mar 2016 20:49:04 +0000 (21:49 +0100)] 
usbip: tools: Extract generic code to be shared with vudc backend

Extract the code from current stub driver backend and a common
interface for both stub driver and vudc. This allows to share most
of the usbipd code for both of them.

Based on code created in cooperation with Open Operating Systems
Student Society at University of Warsaw (O2S3@UW) consisting of:

    Igor Kotrasinski <ikotrasinsk@gmail.com>
    Karol Kosik <karo9@interia.eu>
    Ewelina Kosmider <3w3lfin@gmail.com>
    Dawid Lazarczyk <lazarczyk.dawid@gmail.com>
    Piotr Szulc <ps347277@students.mimuw.edu.pl>

Tutor and project owner:
    Krzysztof Opasiak <k.opasiak@samsung.com>

Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: vudc: Add SysFS infrastructure for VUDC
Igor Kotrasinski [Tue, 8 Mar 2016 20:49:03 +0000 (21:49 +0100)] 
usbip: vudc: Add SysFS infrastructure for VUDC

Add sysfs attributes to allow controlling vudc from usbip tools.

dev_desc - device descriptor of current gadget. This is required to
 be consisten with current usbip protocol and allow to list
 exportable devices on given machine.

usbip_sockfd - allows to pass socket to kernel to start usbip transfer.

usbip_status - currnent status of device

This commit is a result of cooperation between Samsung R&D Institute
Poland and Open Operating Systems Student Society at University
of Warsaw (O2S3@UW) consisting of:

    Igor Kotrasinski <ikotrasinsk@gmail.com>
    Karol Kosik <karo9@interia.eu>
    Ewelina Kosmider <3w3lfin@gmail.com>
    Dawid Lazarczyk <lazarczyk.dawid@gmail.com>
    Piotr Szulc <ps347277@students.mimuw.edu.pl>

Tutor and project owner:
    Krzysztof Opasiak <k.opasiak@samsung.com>

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Karol Kosik <karo9@interia.eu>
[Various bug fixes, improvements and commit msg update]
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: vudc: Add UDC specific ops
Igor Kotrasinski [Tue, 8 Mar 2016 20:49:02 +0000 (21:49 +0100)] 
usbip: vudc: Add UDC specific ops

Add endpoints definitions and ops for both endpoints and gadget.
Add also a suitable platform driver and functions for handling
usbip events.

This commit is a result of cooperation between Samsung R&D Institute
Poland and Open Operating Systems Student Society at University
of Warsaw (O2S3@UW) consisting of:

    Igor Kotrasinski <ikotrasinsk@gmail.com>
    Karol Kosik <karo9@interia.eu>
    Ewelina Kosmider <3w3lfin@gmail.com>
    Dawid Lazarczyk <lazarczyk.dawid@gmail.com>
    Piotr Szulc <ps347277@students.mimuw.edu.pl>

Tutor and project owner:
    Krzysztof Opasiak <k.opasiak@samsung.com>

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Karol Kosik <karo9@interia.eu>
[Various bug fixes, improvements and commit msg update]
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: vudc: Add vudc_tx
Igor Kotrasinski [Tue, 8 Mar 2016 20:49:01 +0000 (21:49 +0100)] 
usbip: vudc: Add vudc_tx

This file contains functions for returning requests to the client.
It also has functions that add requests completed in vudc_rx and
vudc_transfer to the return queue.

This commit is a result of cooperation between Samsung R&D Institute
Poland and Open Operating Systems Student Society at University
of Warsaw (O2S3@UW) consisting of:

    Igor Kotrasinski <ikotrasinsk@gmail.com>
    Karol Kosik <karo9@interia.eu>
    Ewelina Kosmider <3w3lfin@gmail.com>
    Dawid Lazarczyk <lazarczyk.dawid@gmail.com>
    Piotr Szulc <ps347277@students.mimuw.edu.pl>

Tutor and project owner:
    Krzysztof Opasiak <k.opasiak@samsung.com>

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Karol Kosik <karo9@interia.eu>
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: vudc: Add vudc_transfer
Igor Kotrasinski [Tue, 8 Mar 2016 20:49:00 +0000 (21:49 +0100)] 
usbip: vudc: Add vudc_transfer

This file contains a function that simulates USB traffic, based on
the one in dummy_hcd. Is also handles udc-directed control
requests, and contains functions for setting up and controlling
a timer for the emulation.

This commit is a result of cooperation between Samsung R&D Institute
Poland and Open Operating Systems Student Society at University
of Warsaw (O2S3@UW) consisting of:

    Igor Kotrasinski <ikotrasinsk@gmail.com>
    Karol Kosik <karo9@interia.eu>
    Ewelina Kosmider <3w3lfin@gmail.com>
    Dawid Lazarczyk <lazarczyk.dawid@gmail.com>
    Piotr Szulc <ps347277@students.mimuw.edu.pl>

Tutor and project owner:
    Krzysztof Opasiak <k.opasiak@samsung.com>

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Karol Kosik <karo9@interia.eu>
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: vudc: Add vudc_rx
Igor Kotrasinski [Tue, 8 Mar 2016 20:48:59 +0000 (21:48 +0100)] 
usbip: vudc: Add vudc_rx

Add functions which allows to receive urbs from the client.
It receives traffic in a loop in a separate thread.

This commit is a result of cooperation between Samsung R&D Institute
Poland and Open Operating Systems Student Society at University
of Warsaw (O2S3@UW) consisting of:

    Igor Kotrasinski <ikotrasinsk@gmail.com>
    Karol Kosik <karo9@interia.eu>
    Ewelina Kosmider <3w3lfin@gmail.com>
    Dawid Lazarczyk <lazarczyk.dawid@gmail.com>
    Piotr Szulc <ps347277@students.mimuw.edu.pl>

Tutor and project owner:
    Krzysztof Opasiak <k.opasiak@samsung.com>

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Karol Kosik <karo9@interia.eu>
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: vudc: Add VUDC main file
Igor Kotrasinski [Tue, 8 Mar 2016 20:48:58 +0000 (21:48 +0100)] 
usbip: vudc: Add VUDC main file

Add main vudc module file. This allows us to register suitable
platform device and driver (just like dummy_hcd does).

Currently number of vudc instances is determined using module
parameter but whole infrastructure is suitable to make vudc
creation dynamic (for example via configfs).

This commit is a result of cooperation between Samsung R&D Institute
Poland and Open Operating Systems Student Society at University
of Warsaw (O2S3@UW) consisting of:

    Igor Kotrasinski <ikotrasinsk@gmail.com>
    Karol Kosik <karo9@interia.eu>
    Ewelina Kosmider <3w3lfin@gmail.com>
    Dawid Lazarczyk <lazarczyk.dawid@gmail.com>
    Piotr Szulc <ps347277@students.mimuw.edu.pl>

Tutor and project owner:
    Krzysztof Opasiak <k.opasiak@samsung.com>

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Karol Kosik <karo9@interia.eu>
[Various bug fixes and commit message update]
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: vudc: Make usbip_common vudc-aware
Igor Kotrasinski [Tue, 8 Mar 2016 20:48:57 +0000 (21:48 +0100)] 
usbip: vudc: Make usbip_common vudc-aware

Add constants for VUDC events in usbip_common.h
and make use of them in usbip_common.c.

This commit is a result of cooperation between Samsung R&D Institute
Poland and Open Operating Systems Student Society at University
of Warsaw (O2S3@UW) consisting of:

    Igor Kotrasinski <ikotrasinsk@gmail.com>
    Karol Kosik <karo9@interia.eu>
    Ewelina Kosmider <3w3lfin@gmail.com>
    Dawid Lazarczyk <lazarczyk.dawid@gmail.com>
    Piotr Szulc <ps347277@students.mimuw.edu.pl>

Tutor and project owner:
    Krzysztof Opasiak <k.opasiak@samsung.com>

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Karol Kosik <karo9@interia.eu>
[Small fixes and commit message update]
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousbip: vudc: Add header for USB/IP UDC
Igor Kotrasinski [Tue, 8 Mar 2016 20:48:56 +0000 (21:48 +0100)] 
usbip: vudc: Add header for USB/IP UDC

Add header with definitions needed by vudc driver.

This commit is a result of cooperation between Samsung R&D Institute
Poland and Open Operating Systems Student Society at University
of Warsaw (O2S3@UW) consisting of:

    Igor Kotrasinski <ikotrasinsk@gmail.com>
    Karol Kosik <karo9@interia.eu>
    Ewelina Kosmider <3w3lfin@gmail.com>
    Dawid Lazarczyk <lazarczyk.dawid@gmail.com>
    Piotr Szulc <ps347277@students.mimuw.edu.pl>

Tutor and project owner:
    Krzysztof Opasiak <k.opasiak@samsung.com>

Signed-off-by: Igor Kotrasinski <i.kotrasinsk@samsung.com>
Signed-off-by: Karol Kosik <karo9@interia.eu>
[Some small improvements]
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: storage: fix multi-line comment style
Felipe Balbi [Mon, 18 Apr 2016 10:09:11 +0000 (13:09 +0300)] 
usb: storage: fix multi-line comment style

No functional changes here, just making sure our
storage driver uses a consistent multi-line comment
style.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: storage: scsiglue: limit USB3 devices to 2048 sectors
Felipe Balbi [Mon, 18 Apr 2016 10:09:10 +0000 (13:09 +0300)] 
usb: storage: scsiglue: limit USB3 devices to 2048 sectors

USB3 devices, because they are much newer, have much
less chance of having issues with larger transfers.

We still keep a limit because anything above 2048
sectors really rendered negligible speed
improvements, so we will simply ignore
that. Transferring 1MiB should already give us
pretty good performance.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agousb: storage: scsiglue: further describe our 240 sector limit
Felipe Balbi [Mon, 18 Apr 2016 10:09:09 +0000 (13:09 +0300)] 
usb: storage: scsiglue: further describe our 240 sector limit

Just so we have some sort of documentation as to why
we limit our Mass Storage transfers to 240 sectors,
let's update the comment to make clearer that
devices were found that would choke with larger
transfers.

While at that, also make sure to clarify that other
operating systems have similar, albeit different,
limits on mass storage transfers.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agohub: admit devices are SS+
Oliver Neukum [Wed, 20 Apr 2016 14:28:09 +0000 (16:28 +0200)] 
hub: admit devices are SS+

If a port can do 10 Gb/s the kernel should say so.
The corresponding check needs to be added.

Signed-off.by: Oliver Neukum <ONeukum@suse.com>>

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agoUSB: correct intervals for SS+
Oliver Neukum [Wed, 20 Apr 2016 13:39:12 +0000 (15:39 +0200)] 
USB: correct intervals for SS+

SS+ also expresses intervals in units of 125ms. Testing must
be for SS or faster, not SS exactly.

Signed-off-by: Oliver neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agoUSB: LTM also for USB 3.1
Oliver Neukum [Wed, 20 Apr 2016 13:39:11 +0000 (15:39 +0200)] 
USB: LTM also for USB 3.1

LTM is also defined for SS+. The correct test is to check for anything
slower than SS not exactly SS.

Signed-off-by: Oliver Neukum <ONeukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agoMerge 4.6-rc5 into usb-next
Greg Kroah-Hartman [Mon, 25 Apr 2016 17:50:11 +0000 (10:50 -0700)] 
Merge 4.6-rc5 into usb-next

We want the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8 years agoLinux 4.6-rc5
Linus Torvalds [Sun, 24 Apr 2016 23:17:05 +0000 (16:17 -0700)] 
Linux 4.6-rc5

8 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux...
Linus Torvalds [Sun, 24 Apr 2016 00:15:39 +0000 (17:15 -0700)] 
Merge branch 'fixes' of git://git./linux/kernel/git/evalenti/linux-soc-thermal

Pull thermal fixes from Eduardo Valentin:
 "Specifics in this pull request:

   - Fixes in mediatek and OF thermal drivers

   - Fixes in power_allocator governor

   - More fixes of unsigned to int type change in thermal_core.c.

  These change have been CI tested using KernelCI bot. \o/"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  thermal: fix Mediatek thermal controller build
  thermal: consistently use int for trip temp
  thermal: fix mtk_thermal build dependency
  thermal: minor mtk_thermal.c cleanups
  thermal: power_allocator: req_range multiplication should be a 64 bit type
  thermal: of: add __init attribute

8 years agoMerge tag 'asm-generic-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd...
Linus Torvalds [Sat, 23 Apr 2016 21:53:11 +0000 (14:53 -0700)] 
Merge tag 'asm-generic-4.6' of git://git./linux/kernel/git/arnd/asm-generic

Pull asm-generic update from Arnd Bergmann:
 "Here is one patch to wire up the preadv/pwritev system calls in the
  generic system call table, which is required for all architectures
  that were merged in the last few years, including arm64.

  Usually these get merged along with the syscall implementation or one
  of the architecture trees, but this time that did not happen.

  Andre and Christoph both sent a version of this patch, I picked the
  one I got first"

* tag 'asm-generic-4.6' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  generic syscalls: wire up preadv2 and pwritev2 syscalls

8 years agogeneric syscalls: wire up preadv2 and pwritev2 syscalls
Andre Przywara [Mon, 11 Apr 2016 09:17:46 +0000 (10:17 +0100)] 
generic syscalls: wire up preadv2 and pwritev2 syscalls

These new syscalls are implemented as generic code, so enable them for
architectures like arm64 which use the generic syscall table.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
8 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 23 Apr 2016 19:07:29 +0000 (12:07 -0700)] 
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "Misc fixes: two EDAC driver fixes, a Xen crash fix, a HyperV log spam
  fix and a documentation fix"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86 EDAC, sb_edac.c: Take account of channel hashing when needed
  x86 EDAC, sb_edac.c: Repair damage introduced when "fixing" channel address
  x86/mm/xen: Suppress hugetlbfs in PV guests
  x86/doc: Correct limits in Documentation/x86/x86_64/mm.txt
  x86/hyperv: Avoid reporting bogus NMI status for Gen2 instances

8 years agoMerge branches 'perf-urgent-for-linus', 'smp-urgent-for-linus' and 'timers-urgent...
Linus Torvalds [Sat, 23 Apr 2016 18:45:52 +0000 (11:45 -0700)] 
Merge branches 'perf-urgent-for-linus', 'smp-urgent-for-linus' and 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf, cpu hotplug and timer fixes from Ingo Molnar:
 "perf:
   - A single tooling fix for a user-triggerable segfault.

  CPU hotplug:
   - Fix a CPU hotplug corner case regression, introduced by the recent
     hotplug rework

  timers:
   - Fix a boot hang in the ARM based Tango SoC clocksource driver"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf intel-pt: Fix segfault tracing transactions

* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu/hotplug: Fix rollback during error-out in __cpu_disable()

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource/drivers/tango-xtal: Fix boot hang due to incorrect test

8 years agoMerge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 23 Apr 2016 18:39:48 +0000 (11:39 -0700)] 
Merge branch 'locking-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull locking fixes from Ingo Molnar:
 "Misc fixes:

  pvqspinlocks:
   - an instrumentation fix

  futexes:
   - preempt-count vs pagefault_disable decouple corner case fix
   - futex requeue plist race window fix
   - futex UNLOCK_PI transaction fix for a corner case"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  asm-generic/futex: Re-enable preemption in futex_atomic_cmpxchg_inatomic()
  futex: Acknowledge a new waiter in counter before plist
  futex: Handle unlock_pi race gracefully
  locking/pvqspinlock: Fix division by zero in qstat_read()

8 years agoMerge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 23 Apr 2016 18:34:39 +0000 (11:34 -0700)] 
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull irq fixes from Ingo Molnar:
 "A core irq affinity masks related fix and a MIPS irqchip driver fix"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/mips-gic: Don't overrun pcpu_masks array
  genirq: Dont allow affinity mask to be updated on IPIs

8 years agoMerge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 23 Apr 2016 18:25:01 +0000 (11:25 -0700)] 
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull objtool fixes from Ingo Molnar:
 "A handful of objtool fixes: two improvements to how warnings are
  printed plus a false positive warning fix, and build environment fix"

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Fix Makefile to properly see if libelf is supported
  objtool: Detect falling through to the next function
  objtool: Add workaround for GCC switch jump table bug

8 years agoMerge tag 'usb-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sat, 23 Apr 2016 18:20:03 +0000 (11:20 -0700)] 
Merge tag 'usb-4.6-rc5' of git://git./linux/kernel/git/gregkh/usb

Pull USB / PHY driver fixes from Greg KH:
 "Here are two small sets of patches, both from subsystem trees, USB
  gadget and PHY drivers.

  Full details are in the shortlog, and they have all been in linux-next
  for a while (before I merged them to the USB tree)"

* tag 'usb-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: gadget: f_fs: Fix use-after-free
  usb: dwc3: gadget: Fix suspend/resume during device mode
  usb: dwc3: fix memory leak of dwc->regset
  usb: dwc3: core: fix PHY handling during suspend
  usb: dwc3: omap: fix up error path on probe()
  usb: gadget: composite: Clear reserved fields of SSP Dev Cap
  phy: rockchip-emmc: adapt binding to specifiy register offset and length
  phy: rockchip-emmc: should be a child device of the GRF
  phy: rockchip-dp: should be a child device of the GRF

8 years agoMerge tag 'tty-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Sat, 23 Apr 2016 18:13:46 +0000 (11:13 -0700)] 
Merge tag 'tty-4.6-rc5' of git://git./linux/kernel/git/gregkh/tty

Pull serial fixes from Greg KH:
 "Here are 3 serial driver fixes for issues that have been reported.

  Two are reverts, fixing problems that were in the big TTY/Serial
  driver merge in 4.6-rc1, and the last one is a simple bugfix for a
  regression that showed up in 4.6-rc1 as well.

  All have been in linux-next with no reported issues"

* tag 'tty-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  Revert "serial: 8250: Add hardware dependency to RT288X option"
  tty/serial/8250: fix RS485 half-duplex RX
  Revert "serial-uartlite: Constify uartlite_be/uartlite_le"

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