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9 years agousb: dwc2: gadget: write correct value in ahbcfg register
Gregory Herrero [Fri, 9 Jan 2015 12:38:46 +0000 (13:38 +0100)]
usb: dwc2: gadget: write correct value in ahbcfg register

HBstLen is GAHBCFG[4:1]. Use GAHBCFG_HBSTLEN_SHIFT to write burst-
length at correct position.

Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: dwc2: gadget: fix error path in dwc2_gadget_init
Mian Yousaf Kaukab [Fri, 9 Jan 2015 12:38:45 +0000 (13:38 +0100)]
usb: dwc2: gadget: fix error path in dwc2_gadget_init

In the error path, s3c_hsotg_phy_disable should be called after a
call to s3c_hsotg_phy_enable is made.

Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: dwc2: gadget: don't embed ep0 buffers
Mian Yousaf Kaukab [Fri, 9 Jan 2015 12:38:44 +0000 (13:38 +0100)]
usb: dwc2: gadget: don't embed ep0 buffers

When using DMA, data of the previous setup packet can be read back
from cache because ep0 and ctrl buffers are embedded in struct s3c_hsotg.
Allocate buffers instead of embedding them.

Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Reviewed-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: dwc2: gadget: don't process XferCompl on setup packet
Mian Yousaf Kaukab [Fri, 9 Jan 2015 12:38:43 +0000 (13:38 +0100)]
usb: dwc2: gadget: don't process XferCompl on setup packet

Only process DOEPINT.XferCompl on data packet as DOEPINTn.SetUp can
occur with or without DOEPINT.XferCompl. When DOEPINT.SetUp occurs
with DOEPINT.XferCompl, only DOEPINT.SetUp needs to be handled.

Moreover, ignore DOEPINT.XferCompl when it occurs with
DOEPINT.StupPktRcvd as driver needs to wait for DOEPINT.SetUp to
continue.

Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: dwc2: gadget: mask fifo empty irq with dma
Mian Yousaf Kaukab [Fri, 9 Jan 2015 12:38:42 +0000 (13:38 +0100)]
usb: dwc2: gadget: mask fifo empty irq with dma

When using DMA, keep fifo empty interrupt disabled. Otherwise
core is flooded by interrupts.

Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: dwc2: gadget: register gadget handle to the phy
Gregory Herrero [Fri, 9 Jan 2015 12:38:41 +0000 (13:38 +0100)]
usb: dwc2: gadget: register gadget handle to the phy

Bind peripheral controller to the phy on udc_start. Unbind on
udc_stop.

Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: mv_udc_core: delete pullup operation at .udc_start
Peter Chen [Mon, 12 Jan 2015 08:37:57 +0000 (16:37 +0800)]
usb: gadget: mv_udc_core: delete pullup operation at .udc_start

UDC core has already done it after .udc_start.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: pxa27x_udc: delete pullup operation at .udc_start and .udc_stop
Peter Chen [Mon, 12 Jan 2015 08:37:56 +0000 (16:37 +0800)]
usb: gadget: pxa27x_udc: delete pullup operation at .udc_start and .udc_stop

UDC core has already done it before .udc_stop and after .udc_start.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: pxa27x_udc: delete pullup operation at .udc_start and .udc_stop
Peter Chen [Mon, 12 Jan 2015 08:37:55 +0000 (16:37 +0800)]
usb: gadget: pxa27x_udc: delete pullup operation at .udc_start and .udc_stop

UDC core has already done it before .udc_stop and after .udc_start.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: f_fs: refactor and document __ffs_ep0_read_events better
Michal Nazarewicz [Wed, 10 Sep 2014 15:50:24 +0000 (17:50 +0200)]
usb: gadget: f_fs: refactor and document __ffs_ep0_read_events better

Instead of using variable length array, use a static length equal to
the size of the ffs->ev.types array.  This gets rid of a sparse warning:

drivers/usb/gadget/function/f_fs.c:401:44: warning:
Variable length array is used.

and makes it more explicit that the array has a very tight upper size
limit.  Also add some more documentation about the ev.types array and
how its size is limited and affects the rest of the code.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reported-by: Rohith Seelaboyina <rseelaboyina@nvidia.com>
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agotools: ffs-aio-example: add missing wMaxPacketSize for HS descs
Robert Baldyga [Mon, 5 Jan 2015 09:44:44 +0000 (10:44 +0100)]
tools: ffs-aio-example: add missing wMaxPacketSize for HS descs

It's needed, to have more than 64 bytes of maxpacketsize.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: phy: generic: add vbus support
Robert Jarzmik [Sat, 6 Dec 2014 21:05:15 +0000 (22:05 +0100)]
usb: phy: generic: add vbus support

Add support for vbus detection and power supply. This code is more or
less stolen from phy-gpio-vbus-usb.c, and aims at providing a detection
mechanism for VBus (ie. usb cable plug) based on a GPIO line, and a
power supply activation which draws current from the VBus.

[ balbi@ti.com : fix build break ]

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: phy: nop: device tree documentation for vbus
Robert Jarzmik [Sat, 6 Dec 2014 21:05:14 +0000 (22:05 +0100)]
usb: phy: nop: device tree documentation for vbus

Enhance the phy documentation by adding 2 new optional bindings :
 - the vbus gpio, which detects usb insertion
 - the vbus regulator, which provides current drawn from the usb cable

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: phy: generic: migrate to gpio_desc
Robert Jarzmik [Sat, 6 Dec 2014 21:05:13 +0000 (22:05 +0100)]
usb: phy: generic: migrate to gpio_desc

Change internal gpio handling from integer gpios into gpio
descriptors. This change only addresses the internal API and
device-tree/ACPI, while the legacy platform data remains integer space
based.

This change is only build compile tested, and very prone to error. I
leave this comment for now in the commit message so that this patch gets
some testing as I'm pretty sure it's buggy.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: atmel_usba: Cache INT_ENB register value
Boris Brezillon [Tue, 6 Jan 2015 13:47:02 +0000 (14:47 +0100)]
usb: gadget: atmel_usba: Cache INT_ENB register value

Cache INT_ENB register value in order to avoid uncached iomem access, and
thus improve access time to INT_ENB value.

Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: atmel_usba_udc: Mask status with enabled irqs
Boris Brezillon [Tue, 6 Jan 2015 13:47:01 +0000 (14:47 +0100)]
usb: atmel_usba_udc: Mask status with enabled irqs

Avoid interpreting useless status flags when we're not waiting for such
events by masking the status variable with the interrupt enabled register
value.

Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Reported-by: Patrice VILCHEZ <patrice.vilchez@atmel.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: atmel_usba_udc: Add at91sam9g45 and at91sam9x5 errata handling
Boris Brezillon [Tue, 6 Jan 2015 13:46:59 +0000 (14:46 +0100)]
usb: atmel_usba_udc: Add at91sam9g45 and at91sam9x5 errata handling

at91sam9g45 and at91sam9x5 SoCs have an hardware bug forcing us to
generate a pulse on the BIAS signal on "USB end of reset” and
“USB end of resume" events.

Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Reported-by: Patrice VILCHEZ <patrice.vilchez@atmel.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: atmel_usba_udc: Rework at91sam9rl errata handling
Boris Brezillon [Tue, 6 Jan 2015 13:46:58 +0000 (14:46 +0100)]
usb: atmel_usba_udc: Rework at91sam9rl errata handling

at91sam9rl SoC has an erratum forcing us to toggle the BIAS on USB
suspend/resume events.

This specific handling is only activated when CONFIG_ARCH_AT91SAM9RL is
set and this option is only set when building a non-DT kernel, which is
problematic since non-DT support for at91sam9rl SoC has been removed.

Rework the toggle_bias implementation to attach it to the "at91sam9rl-udc"
compatible string.

Add new compatible strings to avoid executing at91sam9rl erratum handling
on other SoCs.

Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: phy: phy-fsl-usb: Remove some unused functions
Rickard Strandqvist [Thu, 1 Jan 2015 19:15:34 +0000 (20:15 +0100)]
usb: phy: phy-fsl-usb: Remove some unused functions

Removes some functions that are not used anywhere:
fsl_otg_tick_timer() view_ulpi()

This was partially found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: phy: change some comments
Peter Chen [Tue, 30 Dec 2014 06:02:28 +0000 (14:02 +0800)]
usb: phy: change some comments

- Delete the OTG stuffs
- .set_suspend is for controller, not for A-device or B-device.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: phy: phy-mxs-usb: do not depend on speed for disconnect notifier
Peter Chen [Wed, 24 Dec 2014 05:48:03 +0000 (13:48 +0800)]
usb: phy: phy-mxs-usb: do not depend on speed for disconnect notifier

For some user cases, like plug out and replug in usb device during
the system suspend, the speed negotiation will be error due to host
doesn't know the device's disconnection, and it still hopes the
high speed device, but the device backs to "powered" state which
its high speed termination is not enabled, the usb core calls
the PHY's disconnect notifier with "full speed", it will NOT
take effect at all.

If the usb core calls disconnect notifer, the port change must happen,
so it is safe to disable high speed disconenct detector, since
connect notifier will be called soon if the device is still connected
on the port, and we will enable high speed disconnect detector at that
time.

Acked-by: Li Jun <b47624@freescale.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: phy: phy-mxs-usb: add power down and disable wakeup for .shutdown
Peter Chen [Wed, 24 Dec 2014 05:48:02 +0000 (13:48 +0800)]
usb: phy: phy-mxs-usb: add power down and disable wakeup for .shutdown

When we shut down the PHY, we need to power down all PHY's functions
as well as disable wakeup, it is the opposite operation we do at .init.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agodrivers: usb: dwc2: remove 'force' parameter from kill_all_requests()
Robert Baldyga [Tue, 16 Dec 2014 10:51:44 +0000 (11:51 +0100)]
drivers: usb: dwc2: remove 'force' parameter from kill_all_requests()

This patch fixes in simpler way the bug described in [1] and [2]. It
looks like DWC2 is the only UDC driver that doesn't force usb requests
to complete in ep_disable() function. This causes described problem,
because we have no guarantee that all requests will be completed before
unbind of usb function.

To fix this problem we force all requests of disabled endpoint to complete.
Also currently running request is not handled. This allowed to simplify
code of kill_all_requests() function, because 'force' parameter is always
set to true, so we don't need it anymore.

In s3c_hsotg_rx_data() we change function used to print message when active
request is NULL from dev_warn() to dev_dbg(), because such situation is
harmless for driver and now it can take place during normal endpoint
disabling.

[1] https://lkml.org/lkml/2014/12/9/283
[2] https://lkml.org/lkml/2014/12/12/360

Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Re-enable dynamic debug messages
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:51:02 +0000 (14:51 +0100)]
usb: gadget: udc: net2280: Re-enable dynamic debug messages

Some debug messages were not build due to unconditional #if 0.

These messages are very useful for debugging and the user can enable
them on demand via dynamic debug.

If they are not enabled the performance is not affected.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Move ASSERT_OUT_NAKING into out_flush
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:51:01 +0000 (14:51 +0100)]
usb: gadget: udc: net2280: Move ASSERT_OUT_NAKING into out_flush

ASSERT_OUT_NAKING was only called by out_flush and was hidden behind a
ifdef.

This patch moves the inline function into out_flush and remove the
ifdef. The user can decide to print the debug message or not via dynamic
printk

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Simplify scan_dma_completions
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:51:00 +0000 (14:51 +0100)]
usb: gadget: udc: net2280: Simplify scan_dma_completions

After fix superspeed dma_done was applied we can simplify the code by
removing the duplicated dma_done and letting the function check if there
are more completed dma transactions.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Declare allow_status_338x as inline
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:59 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: Declare allow_status_338x as inline

The function is very simple, does not declare any variable and it is
called in the irq path.

The counterpart for net228x is already declared as inline.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Remove function resume_dma
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:58 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: Remove function resume_dma

Function resume_dma is not used, remove it.

The reason the compiler did not catch this dead code is the inline
modifier.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Improve patching of defect 7374
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:57 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: Improve patching of defect 7374

Once the defect 7374 is patched, there is no reason the keep reading the
idx scratch register.

Cache the content of the scratch idx register on device flag.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Clean function net2280_queue
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:56 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: Clean function net2280_queue

Do not duplicate the code for the else branch of the condition.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Merge abort_dma for 228x and 338x
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:55 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: Merge abort_dma for 228x and 338x

We can use the same function for both families of chips and also remove
the ep_stop_dma() function.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Remove function ep_stall
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:54 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: Remove function ep_stall

irqs_superspeed calls ep_stall instead of set/clear_halt, due to a
workaround for SS seqnum. Create a function with the workaround and
call set/clear_halt instead.

This way we can compare the code of super/normal speed and it is easier
to follow the code.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Remove field is_halt
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:53 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: Remove field is_halt

Field is_halt is never used by any function.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Code cleanout remove ep_stdrsp function
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:52 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: Code cleanout remove ep_stdrsp function

ep_stdrsp was only called by handle_stat0_irqs_superspeed and with
always the same flags.

Remove the function and replace the call by the code inside the
function, since it is very simple once the dead code is removed.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Remove restart_dma inline function definition
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:51 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: Remove restart_dma inline function definition

restart_dma is not used before it is declaration. Therefore we can
remove this definition.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Remove dma_started field
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:50 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: Remove dma_started field

Remove dma_started field from net2280_ep structure, since it is not used
by any function.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Remove use_dma module parameter
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:49 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: Remove use_dma module parameter

use_dma parameter was designed to enable the dma on the chip. It was
enabled by default.

It comes from the time when the dma was not reliable. Now it has been
working ok in production.

This patch removes this parameter.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Remove module parameter use_msi
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:48 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: Remove module parameter use_msi

Parameter use_msi was used to enable msi irq on usb338x chips, it was
enabled by default.

There is no reason to prefer non-msi irq on usb338x, and it falls back
to non msi on error.

Therefore remove this option.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: remove full_speed module parameter
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:47 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: remove full_speed module parameter

This patch removes the full_speed parameter used force full-speed
operation.

It was designed exclusively for testing purposes, and there is no
reason to maintain this in a production kernel.

Reverts: 2f0760774711c957c395b31131b848043af98edf
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: net2280: Remove obsolete module param use_dma_chaining
Ricardo Ribalda Delgado [Fri, 28 Nov 2014 13:50:46 +0000 (14:50 +0100)]
usb: gadget: udc: net2280: Remove obsolete module param use_dma_chaining

use_dma_chaining module parameter was designed to avoid creating one irq
per package on a group of packages (with the help of the driver's flag
no_interrupt).

Unfortunately, when this parameter is enabled, the driver fails to work
on both net2280 and 3380 chips.

This patch removes this parameter, which was disabled by default.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: renesas_usbhs: fix platform init error message
Sergei Shtylyov [Tue, 4 Nov 2014 22:48:48 +0000 (01:48 +0300)]
usb: renesas_usbhs: fix platform init error message

There is a typo ("prove" instead of "probe") in the error message printed when
the platform initialization fails. Replace that word with more fitting "init".

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: cleanup on stack DECLARE_COMPLETIONs
Nicholas Mc Guire [Tue, 23 Dec 2014 18:50:14 +0000 (19:50 +0100)]
usb: gadget: cleanup on stack DECLARE_COMPLETIONs

fixups for incorrect use of DECLARE_COMPLETION. see also commit
6e9a4738 ("completions: lockdep annotate on stack completions")

patch is against 3.18.0 linux-next

This was only code reviewed and compile tested

Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: f_uac1: update Class-Specific AudioControl Interface Header Descriptor
Xuebing Wang [Wed, 10 Dec 2014 08:28:15 +0000 (16:28 +0800)]
usb: gadget: f_uac1: update Class-Specific AudioControl Interface Header Descriptor

Update this according to USB Audio Class 1.0 spec. This fixes the Windows 7
detection issue.

Cc: Rafael Brune <mail@rbrune.de>
Signed-off-by: Xuebing Wang <xbing6@gmail.com>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
(Fixed some code style issues)
Tested-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: f_uac1: configure endpoint before using it
Xuebing Wang [Wed, 10 Dec 2014 08:28:14 +0000 (16:28 +0800)]
usb: gadget: f_uac1: configure endpoint before using it

UAC1 forget to do it.

Signed-off-by: Xuebing Wang <xbing6@gmail.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: fix platform_no_drv_owner.cocci warnings
Julia Lawall [Wed, 26 Nov 2014 06:00:45 +0000 (07:00 +0100)]
usb: gadget: fix platform_no_drv_owner.cocci warnings

Remove .owner field if calls are used which set it automatically

Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci

Signed-off-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: remove bogus NULL check
Dan Carpenter [Tue, 25 Nov 2014 15:56:22 +0000 (18:56 +0300)]
usb: gadget: udc: remove bogus NULL check

"ep" isn't NULL here, and static checkers complain because we
dereferenced it on the previous line.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: clean up a printk
Dan Carpenter [Tue, 25 Nov 2014 15:55:57 +0000 (18:55 +0300)]
usb: gadget: udc: clean up a printk

We already know what "value" is, so there is no need to check.  It
puzzles static checkers to have the unneeded condition.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: dwc2: platform: add generic PHY framework support
Yunzhi Li [Mon, 8 Dec 2014 09:46:26 +0000 (17:46 +0800)]
usb: dwc2: platform: add generic PHY framework support

Get PHY parameters from devicetree and power off usb PHY during
system suspend.

Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Yunzhi Li <lyz@rock-chips.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: uvc: configfs support in uvc function
Andrzej Pietrasiewicz [Wed, 10 Dec 2014 11:34:02 +0000 (12:34 +0100)]
usb: gadget: uvc: configfs support in uvc function

Add support for using the uvc function as a component of USB gadgets composed
with configfs.

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: uvc: verify descriptors presence
Andrzej Pietrasiewicz [Wed, 10 Dec 2014 11:34:01 +0000 (12:34 +0100)]
usb: gadget: uvc: verify descriptors presence

If the caller of uvc_alloc() does not provide enough
descriptors, binding the function should fail, so appropriate
code is returned from uvc_copy_descriptors().

uvc_function_bind() is modified accordingly to account for possible
errors from uvc_copy_descriptors().

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: f_uvc: rename a macro to avoid conflicts
Andrzej Pietrasiewicz [Wed, 10 Dec 2014 11:34:00 +0000 (12:34 +0100)]
usb: gadget: f_uvc: rename a macro to avoid conflicts

When configfs is integrated, CONFIGFS_ATTR_STRUCT and CONFIGFS_ATTR_OPS
macros should be used, but the latter expects that tere is a to_f_uvc_opts
function accepting a config_item, whereas the macro being changed
can be applied to a different type of argument.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: phy: nop: Fix the description of 'vcc-supply'
Fabio Estevam [Fri, 12 Dec 2014 15:08:26 +0000 (13:08 -0200)]
Documentation: usb: phy: nop: Fix the description of 'vcc-supply'

Since bd27fa44e13830d2b ("usb: phy: generic: Don't use regulator framework for
RESET line") we no longer model the reset line as a regulator supply, so
adapt the documentation accordingly.

Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: renesas_usbhs: kill dead code in usbhs_probe()
Sergei Shtylyov [Fri, 12 Dec 2014 19:53:18 +0000 (22:53 +0300)]
usb: renesas_usbhs: kill dead code in usbhs_probe()

usbhsc_drvcllbck_notify_hotplug() always returns 0, so it's rather pointless to
store and check its result for being < 0.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: hid: consistently use 2^n - 1 for max values
Andrzej Pietrasiewicz [Mon, 15 Dec 2014 12:50:05 +0000 (13:50 +0100)]
usb: gadget: hid: consistently use 2^n - 1 for max values

A maximum value which fits in 16 bits, unsigned, is 65535.

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: UVC function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:42 +0000 (14:56 +0100)]
Documentation: usb: UVC function testing

Summary of how to test UVC function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: UAC2 function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:41 +0000 (14:56 +0100)]
Documentation: usb: UAC2 function testing

Summary of how to test UAC2 function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: UAC1 function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:40 +0000 (14:56 +0100)]
Documentation: usb: UAC1 function testing

Summary of how to test UAC1 function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: SOURCESINK function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:39 +0000 (14:56 +0100)]
Documentation: usb: SOURCESINK function testing

Summary of how to test SOURCESINK function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: SERIAL function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:38 +0000 (14:56 +0100)]
Documentation: usb: SERIAL function testing

Summary of how to test SERIAL function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: RNDIS function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:37 +0000 (14:56 +0100)]
Documentation: usb: RNDIS function testing

Summary of how to test RNDIS function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: PHONET function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:36 +0000 (14:56 +0100)]
Documentation: usb: PHONET function testing

Summary of how to test PHONET function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: OBEX function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:35 +0000 (14:56 +0100)]
Documentation: usb: OBEX function testing

Summary of how to test OBEX function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: NCM function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:34 +0000 (14:56 +0100)]
Documentation: usb: NCM function testing

Summary of how to test NCM function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: MIDI function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:33 +0000 (14:56 +0100)]
Documentation: usb: MIDI function testing

Summary of how to test MIDI function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: MASS STORAGE function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:32 +0000 (14:56 +0100)]
Documentation: usb: MASS STORAGE function testing

Summary of how to test MASS STORAGE function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: LOOPBACK function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:31 +0000 (14:56 +0100)]
Documentation: usb: LOOPBACK function testing

Summary of how to test LOOPBACK function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: HID function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:30 +0000 (14:56 +0100)]
Documentation: usb: HID function testing

Summary of how to test HID function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: FFS function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:29 +0000 (14:56 +0100)]
Documentation: usb: FFS function testing

Summary of how to test FFS (FunctionFS) function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: EEM function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:28 +0000 (14:56 +0100)]
Documentation: usb: EEM function testing

Summary of how to test EEM function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: ECM subset function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:27 +0000 (14:56 +0100)]
Documentation: usb: ECM subset function testing

Summary of how to test ECM subset function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: ECM function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:26 +0000 (14:56 +0100)]
Documentation: usb: ECM function testing

Summary of how to test ECM function of USB gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: ACM function testing
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:25 +0000 (14:56 +0100)]
Documentation: usb: ACM function testing

The newly added file will be used to provide descriptions of how to test
the functions of USB gadgets.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agoDocumentation: usb: gadget_serial: update generic serial setup instruction
Andrzej Pietrasiewicz [Tue, 16 Dec 2014 13:56:24 +0000 (14:56 +0100)]
Documentation: usb: gadget_serial: update generic serial setup instruction

Using module parameters to specify accepted Vendor ID, Product ID is
considered legacy now. Update the documentation to reflect it.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: dwc3: Remove current_trb as it is unused
Amit Virdi [Fri, 19 Dec 2014 07:10:18 +0000 (12:40 +0530)]
usb: dwc3: Remove current_trb as it is unused

This field was introduced but never used. So, remove it.

Signed-off-by: Amit Virdi <amit.virdi@st.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: dwc3: gadget: Remove redundant check
Amit Virdi [Fri, 19 Dec 2014 07:10:17 +0000 (12:40 +0530)]
usb: dwc3: gadget: Remove redundant check

dwc3_gadget_init_hw_endpoints calls dwc3_alloc_trb_pool only if epnum is not
equal to 0 or 1. Hence, rechecking it in the called function is redundant.

Signed-off-by: Amit Virdi <amit.virdi@st.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: dwc2: Fixed a few typos in comments
Mickael Maison [Tue, 23 Dec 2014 16:39:45 +0000 (17:39 +0100)]
usb: dwc2: Fixed a few typos in comments

Fixed 3 typos in comments

Signed-off-by: Mickael Maison <mickael.maison@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: gadget: udc: s3c2410_udc.c: Remove some unused functions
Rickard Strandqvist [Sat, 20 Dec 2014 22:30:11 +0000 (23:30 +0100)]
usb: gadget: udc: s3c2410_udc.c: Remove some unused functions

Removes some functions that are not used anywhere:
s3c2410_udc_clear_ep_state() s3c2410_udc_set_ep0_sse_out()

This was partially found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agousb: dwc3: Fixed a typo in comments
Mickael Maison [Tue, 23 Dec 2014 16:34:43 +0000 (17:34 +0100)]
usb: dwc3: Fixed a typo in comments

Fixed a typo in comments

Signed-off-by: Mickael Maison <mickael.maison@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
9 years agolinux 3.19-rc4
Linus Torvalds [Sun, 11 Jan 2015 20:44:53 +0000 (12:44 -0800)]
linux 3.19-rc4

9 years agoMerge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Linus Torvalds [Sun, 11 Jan 2015 20:44:10 +0000 (12:44 -0800)]
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm

Pull ARM fixes from Russell King:
 "Three small fixes from over the Christmas period, and wiring up the
  new execveat syscall for ARM"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8275/1: mm: fix PMD_SECT_RDONLY undeclared compile error
  ARM: 8253/1: mm: use phys_addr_t type in map_lowmem() for kernel mem region
  ARM: 8249/1: mm: dump: don't skip regions
  ARM: wire up execveat syscall

9 years agoMerge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 11 Jan 2015 19:53:46 +0000 (11:53 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:
 "Misc fixes: two vdso fixes, two kbuild fixes and a boot failure fix
  with certain odd memory mappings"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, vdso: Use asm volatile in __getcpu
  x86/build: Clean auto-generated processor feature files
  x86: Fix mkcapflags.sh bash-ism
  x86: Fix step size adjustment during initial memory mapping
  x86_64, vdso: Fix the vdso address randomization algorithm

9 years agoMerge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 11 Jan 2015 19:51:49 +0000 (11:51 -0800)]
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:
 "Misc fixes: group scheduling corner case fix, two deadline scheduler
  fixes, effective_load() overflow fix, nested sleep fix, 6144 CPUs
  system fix"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Fix RCU stall upon -ENOMEM in sched_create_group()
  sched/deadline: Avoid double-accounting in case of missed deadlines
  sched/deadline: Fix migration of SCHED_DEADLINE tasks
  sched: Fix odd values in effective_load() calculations
  sched, fanotify: Deal with nested sleeps
  sched: Fix KMALLOC_MAX_SIZE overflow during cpumask allocation

9 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 11 Jan 2015 19:47:45 +0000 (11:47 -0800)]
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Ingo Molnar:
 "Mostly tooling fixes, but also some kernel side fixes: uncore PMU
  driver fix, user regs sampling fix and an instruction decoder fix that
  unbreaks PEBS precise sampling"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/uncore/hsw-ep: Handle systems with only two SBOXes
  perf/x86_64: Improve user regs sampling
  perf: Move task_pt_regs sampling into arch code
  x86: Fix off-by-one in instruction decoder
  perf hists browser: Fix segfault when showing callchain
  perf callchain: Free callchains when hist entries are deleted
  perf hists: Fix children sort key behavior
  perf diff: Fix to sort by baseline field by default
  perf list: Fix --raw-dump option
  perf probe: Fix crash in dwarf_getcfi_elf
  perf probe: Fix to fall back to find probe point in symbols
  perf callchain: Append callchains only when requested
  perf ui/tui: Print backtrace symbols when segfault occurs
  perf report: Show progress bar for output resorting

9 years agoMerge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 11 Jan 2015 19:46:31 +0000 (11:46 -0800)]
Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fixes from Ingo Molnar:
 "A liblockdep fix and a mutex_unlock() mutex-debugging fix"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  mutex: Always clear owner field upon mutex_unlock()
  tools/liblockdep: Fix debug_check thinko in mutex destroy

9 years agomm: fix corner case in anon_vma endless growing prevention
Konstantin Khlebnikov [Sun, 11 Jan 2015 13:54:06 +0000 (16:54 +0300)]
mm: fix corner case in anon_vma endless growing prevention

Fix for BUG_ON(anon_vma->degree) splashes in unlink_anon_vmas() ("kernel
BUG at mm/rmap.c:399!") caused by commit 7a3ef208e662 ("mm: prevent
endless growth of anon_vma hierarchy")

Anon_vma_clone() is usually called for a copy of source vma in
destination argument.  If source vma has anon_vma it should be already
in dst->anon_vma.  NULL in dst->anon_vma is used as a sign that it's
called from anon_vma_fork().  In this case anon_vma_clone() finds
anon_vma for reusing.

Vma_adjust() calls it differently and this breaks anon_vma reusing
logic: anon_vma_clone() links vma to old anon_vma and updates degree
counters but vma_adjust() overrides vma->anon_vma right after that.  As
a result final unlink_anon_vmas() decrements degree for wrong anon_vma.

This patch assigns ->anon_vma before calling anon_vma_clone().

Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Reported-and-tested-by: Chris Clayton <chris2553@googlemail.com>
Reported-and-tested-by: Oded Gabbay <oded.gabbay@amd.com>
Reported-and-tested-by: Chih-Wei Huang <cwhuang@android-x86.org>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Daniel Forrest <dan.forrest@ssec.wisc.edu>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: stable@vger.kernel.org # to match back-porting of 7a3ef208e662
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agomm: Don't count the stack guard page towards RLIMIT_STACK
Linus Torvalds [Sun, 11 Jan 2015 19:33:57 +0000 (11:33 -0800)]
mm: Don't count the stack guard page towards RLIMIT_STACK

Commit fee7e49d4514 ("mm: propagate error from stack expansion even for
guard page") made sure that we return the error properly for stack
growth conditions.  It also theorized that counting the guard page
towards the stack limit might break something, but also said "Let's see
if anybody notices".

Somebody did notice.  Apparently android-x86 sets the stack limit very
close to the limit indeed, and including the guard page in the rlimit
check causes the android 'zygote' process problems.

So this adds the (fairly trivial) code to make the stack rlimit check be
against the actual real stack size, rather than the size of the vma that
includes the guard page.

Reported-and-tested-by: Chih-Wei Huang <cwhuang@android-x86.org>
Cc: Jay Foad <jay.foad@gmail.com>
Cc: stable@kernel.org # to match back-porting of fee7e49d4514
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoMerge branch 'core/urgent' into locking/urgent, to collect all pending locking fixes
Ingo Molnar [Sun, 11 Jan 2015 08:18:05 +0000 (09:18 +0100)]
Merge branch 'core/urgent' into locking/urgent, to collect all pending locking fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>
9 years agoMerge tag 'vfio-v3.19-rc4' of git://github.com/awilliam/linux-vfio
Linus Torvalds [Sat, 10 Jan 2015 20:23:03 +0000 (12:23 -0800)]
Merge tag 'vfio-v3.19-rc4' of git://github.com/awilliam/linux-vfio

Pull VFIO fix from Alex Williamson:
 "Fix PCI header check in vfio_pci_probe() (Wei Yang)"

* tag 'vfio-v3.19-rc4' of git://github.com/awilliam/linux-vfio:
  vfio-pci: Fix the check on pci device type in vfio_pci_probe()

9 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sat, 10 Jan 2015 19:59:25 +0000 (11:59 -0800)]
Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fix from James Bottomley:
 "Just one fix: a qlogic busy wait regression"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  qla2xxx: fix busy wait regression

9 years agoMerge tag 'sound-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Sat, 10 Jan 2015 05:23:27 +0000 (21:23 -0800)]
Merge tag 'sound-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "All a few small regression or stable fixes: a Nvidia HDMI ID addition,
  a regression fix for CAIAQ stream count, a typo fix for GPIO setup
  with STAC/IDT HD-audio codecs, and a Fireworks big-endian fix"

* tag 'sound-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: fireworks: fix an endianness bug for transaction length
  ALSA: hda - Add new GPU codec ID 0x10de0072 to snd-hda
  ALSA: hda - Fix wrong gpio_dir & gpio_mask hint setups for IDT/STAC codecs
  ALSA: snd-usb-caiaq: fix stream count check

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Sat, 10 Jan 2015 05:18:48 +0000 (21:18 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid

Pull HID updates from Jiri Kosina:

 - bounds checking fixes in logitech and roccat drivers, from Peter Wu
   and Dan Carpenter

 - double-kfree fix in i2c-hid driver on bus shutdown, from Mika
   Westerberg

 - a couple of various small driver fixes

 - a few device id additions

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: roccat: potential out of bounds in pyra_sysfs_write_settings()
  HID: Add a new id 0x501a for Genius MousePen i608X
  HID: logitech-hidpp: prefix the name with "Logitech"
  HID: logitech-hidpp: avoid unintended fall-through
  HID: Allow HID_BATTERY_STRENGTH to be enabled
  HID: i2c-hid: Do not free buffers in i2c_hid_stop()
  HID: add battery quirk for USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO keyboard
  HID: logitech-hidpp: check WTP report length
  HID: logitech-dj: check report length

9 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Sat, 10 Jan 2015 05:13:34 +0000 (21:13 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "I'm briefly working between holidays and LCA, so this is close to a
  couple of weeks of fixes,

  Two sets of amdkfd fixes, this is a new feature this kernel, and this
  pull fixes a few issues since it got merged, ordering when built-in to
  kernel and also the iommu vs gpu ordering patch, it also reworks the
  ioctl before the initial release.

  Otherwise:
   - radeon: some misc fixes all over, hdmi, 4k, dpm
   - nouveau: mcp77 init fixes, oops fix, bug on fix, msi fix
   - i915: power fixes, revert VGACNTR patch

  Probably be quiteer next week since I'll be at LCA anyways"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (33 commits)
  drm/amdkfd: rewrite kfd_ioctl() according to drm_ioctl()
  drm/amdkfd: reformat IOCTL definitions to drm-style
  drm/amdkfd: Do copy_to/from_user in general kfd_ioctl()
  drm/radeon: integer underflow in radeon_cp_dispatch_texture()
  drm/radeon: adjust default bapm settings for KV
  drm/radeon: properly filter DP1.2 4k modes on non-DP1.2 hw
  drm/radeon: fix sad_count check for dce3
  drm/radeon: KV has three PPLLs (v2)
  drm/amdkfd: unmap VMID<-->PASID when relesing VMID (non-HWS)
  drm/radeon: Init amdkfd only if it was compiled
  amdkfd: actually allocate longs for the pasid bitmask
  drm/nouveau/nouveau: Do not BUG_ON(!spin_is_locked()) on UP
  drm/nv4c/mc: disable msi
  drm/nouveau/fb/ram/mcp77: enable NISO poller
  drm/nouveau/fb/ram/mcp77: use carveout reg to determine size
  drm/nouveau/fb/ram/mcp77: subclass nouveau_ram
  drm/nouveau: wake up the card if necessary during gem callbacks
  drm/nouveau/device: Add support for GK208B, resolves bug 86935
  drm/nouveau: fix missing return statement in nouveau_ttm_tt_unpopulate
  drm/nouveau/bios: fix oops on pre-nv50 chipsets
  ...

9 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Sat, 10 Jan 2015 04:57:58 +0000 (20:57 -0800)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Here is a handful of minor arm64 fixes discovered and fixed over the
  Christmas break.  The main part is adding some missing #includes that
  we seem to be getting transitively but have started causing problems
  in -next.

   - Fix early mapping fixmap corruption by EFI runtime services
   - Fix __NR_compat_syscalls off-by-one
   - Add missing sanity checks for some 32-bit registers
   - Add some missing #includes which we get transitively
   - Remove unused prepare_to_copy() macro"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64/efi: add missing call to early_ioremap_reset()
  arm64: fix missing asm/io.h include in kernel/smp_spin_table.c
  arm64: fix missing asm/alternative.h include in kernel/module.c
  arm64: fix missing linux/bug.h include in asm/arch_timer.h
  arm64: fix missing asm/pgtable-hwdef.h include in asm/processor.h
  arm64: sanity checks: add missing AArch32 registers
  arm64: Remove unused prepare_to_copy()
  arm64: Correct __NR_compat_syscalls for bpf

9 years agoMerge tag 'for_linus-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jwess...
Linus Torvalds [Sat, 10 Jan 2015 04:51:10 +0000 (20:51 -0800)]
Merge tag 'for_linus-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb

Pull kgdb/kdb fixes from Jason Wessel:
 "These have been around since 3.17 and in kgdb-next for the last 9
  weeks and some will go back to -stable.

  Summary of changes:

  Cleanups
   - kdb: Remove unused command flags, repeat flags and KDB_REPEAT_NONE

  Fixes
   - kgdb/kdb: Allow access on a single core, if a CPU round up is
     deemed impossible, which will allow inspection of the now "trashed"
     kernel
   - kdb: Add enable mask for the command groups
   - kdb: access controls to restrict sensitive commands"

* tag 'for_linus-3.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/kgdb:
  kernel/debug/debug_core.c: Logging clean-up
  kgdb: timeout if secondary CPUs ignore the roundup
  kdb: Allow access to sensitive commands to be restricted by default
  kdb: Add enable mask for groups of commands
  kdb: Categorize kdb commands (similar to SysRq categorization)
  kdb: Remove KDB_REPEAT_NONE flag
  kdb: Use KDB_REPEAT_* values as flags
  kdb: Rename kdb_register_repeat() to kdb_register_flags()
  kdb: Rename kdb_repeat_t to kdb_cmdflags_t, cmd_repeat to cmd_flags
  kdb: Remove currently unused kdbtab_t->cmd_flags

9 years agoMerge branch 'for-3.19' of git://linux-nfs.org/~bfields/linux
Linus Torvalds [Sat, 10 Jan 2015 02:10:48 +0000 (18:10 -0800)]
Merge branch 'for-3.19' of git://linux-nfs.org/~bfields/linux

Pull two nfsd bugfixes from Bruce Fields.

* 'for-3.19' of git://linux-nfs.org/~bfields/linux:
  rpc: fix xdr_truncate_encode to handle buffer ending on page boundary
  nfsd: fix fi_delegees leak when fi_had_conflict returns true

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph...
Linus Torvalds [Sat, 10 Jan 2015 01:55:00 +0000 (17:55 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

Pull two Ceph fixes from Sage Weil:
 "These are both pretty trivial: a sparse warning fix and size_t printk
  thing"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  libceph: fix sparse endianness warnings
  ceph: use %zu for len in ceph_fill_inline_data()

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Sat, 10 Jan 2015 01:46:07 +0000 (17:46 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

Pull btrfs fixes from Chris Mason:
 "None of these are huge, but my commit does fix a regression from 3.18
  that could cause lost files during log replay.

  This also adds Dave Sterba to the list of Btrfs maintainers.  It
  doesn't mean we're doing things differently, but Dave has really been
  helping with the maintainer workload for years"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: don't delay inode ref updates during log replay
  Btrfs: correctly get tree level in tree_backref_for_extent
  Btrfs: call inode_dec_link_count() on mkdir error path
  Btrfs: abort transaction if we don't find the block group
  Btrfs, scrub: uninitialized variable in scrub_extent_for_parity()
  Btrfs: add more maintainers

9 years agoMerge branch 'akpm' (patches from Andrew)
Linus Torvalds [Fri, 9 Jan 2015 23:10:59 +0000 (15:10 -0800)]
Merge branch 'akpm' (patches from Andrew)

Merge misc fixes from Andrew Morton:
 "12 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  mm, vmscan: prevent kswapd livelock due to pfmemalloc-throttled process being killed
  memcg: fix destination cgroup leak on task charges migration
  mm: memcontrol: switch soft limit default back to infinity
  mm/debug_pagealloc: remove obsolete Kconfig options
  vfs: renumber FMODE_NONOTIFY and add to uniqueness check
  arch/blackfin/mach-bf533/boards/stamp.c: add linux/delay.h
  ocfs2: fix the wrong directory passed to ocfs2_lookup_ino_from_name() when link file
  MAINTAINERS: update rydberg's addresses
  mm: protect set_page_dirty() from ongoing truncation
  mm: prevent endless growth of anon_vma hierarchy
  exit: fix race between wait_consider_task() and wait_task_zombie()
  ocfs2: remove bogus check in dlm_process_recovery_data

9 years agoARM: 8275/1: mm: fix PMD_SECT_RDONLY undeclared compile error
Victor Kamensky [Fri, 9 Jan 2015 17:55:45 +0000 (18:55 +0100)]
ARM: 8275/1: mm: fix PMD_SECT_RDONLY undeclared compile error

In v3.19-rc3 tree when CONFIG_ARM_LPAE and CONFIG_DEBUG_RODATA are enabled
image failed to compile with the following error:

arch/arm/mm/init.c:661:14: error: ‘PMD_SECT_RDONLY’ undeclared here (not in a function)

It seems that '80d6b0c ARM: mm: allow text and rodata sections to be read-only'
and 'ded9477 ARM: 8109/1: mm: Modify pte_write and pmd_write logic for LPAE'
commits crossed. 80d6b0c uses PMD_SECT_RDONLY macro but ded9477 renames it
and uses software bits L_PMD_SECT_RDONLY instead.

Fix is to use L_PMD_SECT_RDONLY instead PMD_SECT_RDONLY as ded9477 does in
another places.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
9 years agoHID: roccat: potential out of bounds in pyra_sysfs_write_settings()
Dan Carpenter [Fri, 9 Jan 2015 12:32:31 +0000 (15:32 +0300)]
HID: roccat: potential out of bounds in pyra_sysfs_write_settings()

This is a static checker fix.  We write some binary settings to the
sysfs file.  One of the settings is the "->startup_profile".  There
isn't any checking to make sure it fits into the
pyra->profile_settings[] array in the profile_activated() function.

I added a check to pyra_sysfs_write_settings() in both places because
I wasn't positive that the other callers were correct.

Cc: <stable@vger.kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>