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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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.
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
Linus Torvalds [Sun, 24 Apr 2016 23:17:05 +0000 (16:17 -0700)] 
Linux 4.6-rc5
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
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
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>
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
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
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()
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
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
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
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"
Linus Torvalds [Sat, 23 Apr 2016 18:04:26 +0000 (11:04 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
Pull input subsystem fixes from Dmitry Torokhov:
"Just minor driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: twl4030-vibra - do not reparent to grandparent
Input: twl6040-vibra - do not reparent to grandparent
Input: twl6040-vibra - ignore return value of schedule_work
Input: twl6040-vibra - fix NULL pointer dereference by removing workqueue
Input: pmic8xxx-pwrkey - fix algorithm for converting trigger delay
Input: arizona-haptic - don't assign input_dev parent
Input: clarify we want BTN_TOOL_<name> on proximity
Input: xpad - add Mad Catz FightStick TE 2 VID/PID
Input: gtco - fix crash on detecting device without endpoints
Linus Torvalds [Fri, 22 Apr 2016 18:52:49 +0000 (11:52 -0700)]
Merge tag 'pinctrl-v4.6-3' of git://git./linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Some pin control driver fixes came in. One headed for stable and the
other two are just ordinary merge window fixes.
- Make the i.MX driver select REGMAP as a dependency
- Fix up the Mediatek debounce time unit
- Fix a real hairy ffs vs __ffs issue in the Single pinctrl driver"
* tag 'pinctrl-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: single: Fix pcs_parse_bits_in_pinctrl_entry to use __ffs than ffs
pinctrl: mediatek: correct debounce time unit in mtk_gpio_set_debounce
pinctrl: imx: Kconfig: PINCTRL_IMX select REGMAP
Linus Torvalds [Fri, 22 Apr 2016 18:11:15 +0000 (11:11 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Cache invalidation fix for early CPU boot status update (incorrect
cacheline)
- of_put_node() missing in the spin_table code
- EL1/El2 early init inconsistency when Virtualisation Host Extensions
are present
- RCU warning fix in the arm_pmu.c driver
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Fix EL1/EL2 early init inconsistencies with VHE
drivers/perf: arm-pmu: fix RCU usage on pmu resume from low-power
arm64: spin-table: add missing of_node_put()
arm64: fix invalidation of wrong __early_cpu_boot_status cacheline
Linus Torvalds [Fri, 22 Apr 2016 17:53:12 +0000 (10:53 -0700)]
Merge tag 'powerpc-4.6-3' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Three powerpc cpu feature fixes from Anton Blanchard:
- scan_features() updated incorrect bits for REAL_LE
- update cpu_user_features2 in scan_features()
- update TM user feature bits in scan_features()"
* tag 'powerpc-4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Update TM user feature bits in scan_features()
powerpc: Update cpu_user_features2 in scan_features()
powerpc: scan_features() updates incorrect bits for REAL_LE
Linus Torvalds [Fri, 22 Apr 2016 17:41:31 +0000 (10:41 -0700)]
Merge tag 'iommu-fixes-v4.6-rc4' of git://git./linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
"The fixes include:
- Two patches to revert the use of default domains in the ARM SMMU
driver. Enabling this caused regressions which need more thorough
fixing. So the regressions are fixed for now by disabling the use
of default domains.
- A fix for a v4.4 regression in the AMD IOMMU driver which broke
devices behind invisible PCIe-to-PCI bridges with IOMMU enabled"
* tag 'iommu-fixes-v4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/arm-smmu: Don't allocate resources for bypass domains
iommu/arm-smmu: Fix stream-match conflict with IOMMU_DOMAIN_DMA
iommu/amd: Fix checking of pci dma aliases
Linus Torvalds [Fri, 22 Apr 2016 17:29:52 +0000 (10:29 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"i915, nouveau and amdgpu/radeon fixes in this:
nouveau:
Two fixes, one for a regression with dithering and one for a bug
hit by the userspace drivers.
i915:
A few fixes, mostly things heading for stable, two important
skylake GT3/4 hangs.
radeon/amdgpu:
Some audio, suspend/resume and some runtime PM fixes, along with
two patches to harden the userptr ABI a bit"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (24 commits)
drm: Loongson-3 doesn't fully support wc memory
drm/nouveau/gr/gf100: select a stream master to fixup tfb offset queries
amdgpu/uvd: add uvd fw version for amdgpu
drm/amdgpu: forbid mapping of userptr bo through radeon device file
drm/radeon: forbid mapping of userptr bo through radeon device file
drm/amdgpu: bump the afmt limit for CZ, ST, Polaris
drm/amdgpu: use defines for CRTCs and AMFT blocks
drm/dp/mst: Validate port in drm_dp_payload_send_msg()
drm/nouveau/kms: fix setting of default values for dithering properties
drm/radeon: print a message if ATPX dGPU power control is missing
Revert "drm/radeon: disable runtime pm on PX laptops without dGPU power control"
drm/amdgpu/acp: fix resume on CZ systems with AZ audio
drm/radeon: add a quirk for a XFX R9 270X
drm/radeon: print pci revision as well as pci ids on driver load
drm/i915: Use fw_domains_put_with_fifo() on HSW
drm/i915: Force ringbuffers to not be at offset 0
drm/i915: Adjust size of PIPE_CONTROL used for gen8 render seqno write
drm/i915/skl: Fix spurious gpu hang with gt3/gt4 revs
drm/i915/skl: Fix rc6 based gpu/system hang
drm/i915/userptr: Hold mmref whilst calling get-user-pages
...
Linus Torvalds [Fri, 22 Apr 2016 17:17:18 +0000 (10:17 -0700)]
Merge tag 'sound-4.6-rc5' of git://git./linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Again a relatively calm week without surprise: most of fixes are about
HD-audio, including fixes for Cirrus codec regression and a race over
regmap access. Although both change are slightly unintuitive, the
risk of further breakage is quite low, I hope.
Other than that, all the rest are trivial"
* tag 'sound-4.6-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix possible race on regmap bypass flip
ALSA: pcxhr: Fix missing mutex unlock
ALSA: hda - add PCI ID for Intel Broxton-T
ALSA: hda - Keep powering up ADCs on Cirrus codecs
ALSA: hda/realtek - Add ALC3234 headset mode for Optiplex 9020m
ALSA - hda: hdmi check NULL pointer in hdmi_set_chmap
ALSA: hda - Don't trust the reported actual power state
Greg Kroah-Hartman [Fri, 22 Apr 2016 08:13:24 +0000 (17:13 +0900)]
Merge tag 'phy-for-4.6-rc' of git://git./linux/kernel/git/kishon/linux-phy into usb-linus
Kishon writes:
phy: for 4.6-rc
*) make rockchip-dp and rockchip-emmc PHY child device of
GRF
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Tony Luck [Thu, 14 Apr 2016 17:22:02 +0000 (10:22 -0700)] 
x86 EDAC, sb_edac.c: Take account of channel hashing when needed
Haswell and Broadwell can be configured to hash the channel
interleave function using bits [27:12] of the physical address.
On those processor models we must check to see if hashing is
enabled (bit21 of the HASWELL_HASYSDEFEATURE2 register) and
act accordingly.
Based on a patch by patrickg <patrickg@supermicro.com>
Tested-by: Patrick Geary <patrickg@supermicro.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Aristeu Rozanski <arozansk@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-edac@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tony Luck [Thu, 14 Apr 2016 17:21:52 +0000 (10:21 -0700)]
x86 EDAC, sb_edac.c: Repair damage introduced when "fixing" channel address
In commit:
eb1af3b71f9d ("Fix computation of channel address")
I switched the "sck_way" variable from holding the log2 value read
from the h/w to instead be the actual number. Unfortunately it
is needed in log2 form when used to shift the address.
Tested-by: Patrick Geary <patrickg@supermicro.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Aristeu Rozanski <arozansk@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-edac@vger.kernel.org
Cc: stable@vger.kernel.org
Fixes: eb1af3b71f9d ("Fix computation of channel address")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Greg Kroah-Hartman [Fri, 22 Apr 2016 08:09:05 +0000 (17:09 +0900)]
Merge tag 'fixes-for-v4.6-rc5' of git://git./linux/kernel/git/balbi/usb into usb-linus
Felipe writes:
usb: fixes for v4.6-rc5
No more major fixes left. Out of the 6 fixes we have
here, 4 are on dwc3.
The most important is the memory leak fix in
dwc3/debugfs.c. We also have a fix for PHY handling
in suspend/resume and a fix for dwc3-omap's error
handling.
Suspend/resume also had the potential to trigger a
NULL pointer dereference on dwc3; that's also fixed
now.
Our good ol' ffs function gets a use-after-free fix
while the generic composite.c layer has a robustness
fix by making sure reserved fields of a possible SSP
device capability descriptor is cleared to 0.
Jan Beulich [Thu, 21 Apr 2016 06:27:04 +0000 (00:27 -0600)] 
x86/mm/xen: Suppress hugetlbfs in PV guests
Huge pages are not normally available to PV guests. Not suppressing
hugetlbfs use results in an endless loop of page faults when user mode
code tries to access a hugetlbfs mapped area (since the hypervisor
denies such PTEs to be created, but error indications can't be
propagated out of xen_set_pte_at(), just like for various of its
siblings), and - once killed in an oops like this:
kernel BUG at .../fs/hugetlbfs/inode.c:428!
invalid opcode: 0000 [#1] SMP
...
RIP: e030:[<
ffffffff811c333b>] [<
ffffffff811c333b>] remove_inode_hugepages+0x25b/0x320
...
Call Trace:
[<
ffffffff811c3415>] hugetlbfs_evict_inode+0x15/0x40
[<
ffffffff81167b3d>] evict+0xbd/0x1b0
[<
ffffffff8116514a>] __dentry_kill+0x19a/0x1f0
[<
ffffffff81165b0e>] dput+0x1fe/0x220
[<
ffffffff81150535>] __fput+0x155/0x200
[<
ffffffff81079fc0>] task_work_run+0x60/0xa0
[<
ffffffff81063510>] do_exit+0x160/0x400
[<
ffffffff810637eb>] do_group_exit+0x3b/0xa0
[<
ffffffff8106e8bd>] get_signal+0x1ed/0x470
[<
ffffffff8100f854>] do_signal+0x14/0x110
[<
ffffffff810030e9>] prepare_exit_to_usermode+0xe9/0xf0
[<
ffffffff814178a5>] retint_user+0x8/0x13
This is CVE-2016-3961 / XSA-174.
Reported-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Juergen Gross <JGross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: stable@vger.kernel.org
Cc: xen-devel <xen-devel@lists.xenproject.org>
Link: http://lkml.kernel.org/r/57188ED802000078000E431C@prv-mh.provo.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Juergen Gross [Fri, 22 Apr 2016 07:35:04 +0000 (09:35 +0200)] 
x86/doc: Correct limits in Documentation/x86/x86_64/mm.txt
Correct the size of the module mapping space and the maximum available
physical memory size of current processors.
Signed-off-by: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: corbet@lwn.net
Cc: linux-doc@vger.kernel.org
Link: http://lkml.kernel.org/r/1461310504-15977-1-git-send-email-jgross@suse.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Sebastian Andrzej Siewior [Fri, 8 Apr 2016 12:40:15 +0000 (14:40 +0200)] 
cpu/hotplug: Fix rollback during error-out in __cpu_disable()
The recent introduction of the hotplug thread which invokes the callbacks on
the plugged cpu, cased the following regression:
If takedown_cpu() fails, then we run into several issues:
1) The rollback of the target cpu states is not invoked. That leaves the smp
threads and the hotplug thread in disabled state.
2) notify_online() is executed due to a missing skip_onerr flag. That causes
that both CPU_DOWN_FAILED and CPU_ONLINE notifications are invoked which
confuses quite some notifiers.
3) The CPU_DOWN_FAILED notification is not invoked on the target CPU. That's
not an issue per se, but it is inconsistent and in consequence blocks the
patches which rely on these states being invoked on the target CPU and not
on the controlling cpu. It also does not preserve the strict call order on
rollback which is problematic for the ongoing state machine conversion as
well.
To fix this we add a rollback flag to the remote callback machinery and invoke
the rollback including the CPU_DOWN_FAILED notification on the remote
cpu. Further mark the notify online state with 'skip_onerr' so we don't get a
double invokation.
This workaround will go away once we moved the unplug invocation to the target
cpu itself.
[ tglx: Massaged changelog and moved the CPU_DOWN_FAILED notifiaction to the
target cpu ]
Fixes: 4cb28ced23c4 ("cpu/hotplug: Create hotplug threads")
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-s390@vger.kernel.org
Cc: rt@linutronix.de
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Anna-Maria Gleixner <anna-maria@linutronix.de>
Link: http://lkml.kernel.org/r/20160408124015.GA21960@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Daniel Lezcano [Tue, 19 Apr 2016 13:43:02 +0000 (15:43 +0200)] 
clocksource/drivers/tango-xtal: Fix boot hang due to incorrect test
Commit
0881841f7e78 introduced a regression by inverting a test check
after calling clocksource_mmio_init(). That results on the system to
hang at boot time.
Fix it by inverting the test again.
Fixes: 0881841f7e78 ("Replace code by clocksource_mmio_init")
Reported-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Steven Rostedt [Wed, 20 Apr 2016 15:32:35 +0000 (11:32 -0400)] 
objtool: Fix Makefile to properly see if libelf is supported
When doing a make allmodconfig, I hit the following compile error:
In file included from builtin-check.c:32:0:
elf.h:22:18: fatal error: gelf.h: No such file or directory
compilation terminated.
...
Digging into it, it appears that the $(shell ..) command in the Makefile does
not give the proper result when it fails to find -lelf, and continues to
compile objtool.
Instead, use the "try-run" makefile macro to perform the test. This gives a
proper result for both cases.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Bernd Petrovitsch <bernd@petrovitsch.priv.at>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Chris J Arges <chris.j.arges@canonical.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Pedro Alves <palves@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: live-patching@vger.kernel.org
Fixes: 442f04c34a1a4 ("objtool: Add tool to perform compile-time stack metadata validation")
Link: http://lkml.kernel.org/r/20160420153234.GA24032@home.goodmis.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Dave Airlie [Fri, 22 Apr 2016 00:39:26 +0000 (10:39 +1000)] 
Merge branch 'drm-fixes-4.6' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Misc radeon and amdgpu bug fixes for 4.6.
* 'drm-fixes-4.6' of git://people.freedesktop.org/~agd5f/linux:
amdgpu/uvd: add uvd fw version for amdgpu
drm/amdgpu: forbid mapping of userptr bo through radeon device file
drm/radeon: forbid mapping of userptr bo through radeon device file
drm/amdgpu: bump the afmt limit for CZ, ST, Polaris
drm/amdgpu: use defines for CRTCs and AMFT blocks
drm/radeon: print a message if ATPX dGPU power control is missing
Revert "drm/radeon: disable runtime pm on PX laptops without dGPU power control"
drm/amdgpu/acp: fix resume on CZ systems with AZ audio
drm/radeon: add a quirk for a XFX R9 270X
drm/radeon: print pci revision as well as pci ids on driver load
drm/amdgpu: when suspending, if uvd/vce was running. need to cancel delay work.
drm/radeon: fix initial connector audio value
Huacai Chen [Tue, 19 Apr 2016 11:19:11 +0000 (19:19 +0800)] 
drm: Loongson-3 doesn't fully support wc memory
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Fri, 22 Apr 2016 00:09:33 +0000 (10:09 +1000)]
Merge branch 'linux-4.6' of git://github.com/skeggsb/linux into drm-fixes
transform feedback fix.
* 'linux-4.6' of git://github.com/skeggsb/linux:
drm/nouveau/gr/gf100: select a stream master to fixup tfb offset queries
Ben Skeggs [Fri, 22 Apr 2016 00:05:21 +0000 (10:05 +1000)] 
drm/nouveau/gr/gf100: select a stream master to fixup tfb offset queries
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
Sonny Jiang [Mon, 18 Apr 2016 20:05:04 +0000 (16:05 -0400)] 
amdgpu/uvd: add uvd fw version for amdgpu
Was previously always hardcoded to 0.
Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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