This reverts commit dec08194ffeccfa1cf085906b53d301930eae18f.
Commit dec08194ffec ("xhci: Limit USB2 port wake support for AMD Promontory
hosts") makes all high speed USB ports on ASUS PRIME B350M-A cease to
function after enabling runtime PM.
All boards with this chipsets will be affected, so re
Hello.
Judging by the code of cypress_m8.c some functions are considered to be
capable of working concurrently with other functions, e.g. cypress_open.
There are, however, entities that are protected by the locks at one
place and not protected in another. Lines are given using the info from
Li
videobuf_queue_ops are not supposed to change at runtime. All functions
working with videobuf_queue_ops provided by work
with const videobuf_queue_ops. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav
---
drivers/media/usb/cx231xx/cx231xx-417.c | 2 +-
drivers/media/usb/cx2
videobuf_queue_ops are not supposed to change at runtime. All functions
working with videobuf_queue_ops provided by work
with const videobuf_queue_ops. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav
---
drivers/media/pci/bt8xx/bttv-driver.c | 2 +-
drivers/media/pci/cx18/cx
videobuf_queue_ops are not supposed to change at runtime. All functions
working with videobuf_queue_ops provided by work
with const videobuf_queue_ops. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav
---
drivers/media/platform/davinci/vpfe_capture.c | 2 +-
drivers/media/pla
videobuf_queue_ops are not supposed to change at runtime. All functions
working with videobuf_queue_ops provided by work
with const videobuf_queue_ops. So mark the non-const structs as const.
Signed-off-by: Arvind Yadav
---
drivers/media/common/saa7146/saa7146_vbi.c | 2 +-
drivers/media/comm
videobuf_queue_ops are not supposed to change at runtime. All functions
working with videobuf_queue_ops provided by work
with const videobuf_queue_ops. So mark the non-const structs as const.
Arvind Yadav (4):
[PATCH 1/4] [media] saa7146: constify videobuf_queue_ops structures
[PATCH 2/4] [me
On Sat, Aug 19, 2017 at 01:52:26PM +0530, Bhumika Goyal wrote:
> Make this const as it is only stored in the type field of a device
> structure, which is const.
> Done using Coccinelle.
>
> Signed-off-by: Bhumika Goyal
Acked-by: Heikki Krogerus
> ---
> drivers/usb/common/ulpi.c | 2 +-
> 1 fi
Am Dienstag, den 22.08.2017, 15:11 +0300 schrieb Anton Volkov:
> Hello.
>
> Judging by the code of cypress_m8.c some functions are considered to be
> capable of working concurrently with other functions, e.g. cypress_open.
> There are, however, entities that are protected by the locks at one
> p
Hello.
While searching for races in the Linux kernel I've come across
"drivers/usb/misc/iowarrior.ko" module. Here are questions that I came
up with while analyzing results. Lines are given using the info from
Linux v4.12.
Consider the following case:
Thread 1:Thread 2:
Sorry for delayed reply.
On 16.08.2017 19:35, Alan Stern wrote:
On Wed, 16 Aug 2017, Anton Vasilyev wrote:
On 16.08.2017 18:29, Alan Stern wrote:
On Wed, 16 Aug 2017, Anton Vasilyev wrote:
gadget_release() is responsible for cleanup dev memory.
But if net2280_probe() fails after dev alloca
Hello,
we are working on a project, where we need multiple cameras connected to
embedded computer. For computer we have chosen odroid XU4 and for
cameras Logitech C920. We need at least 5 cameras running with 720p. The
problem we have is allocated USB bandwidth (cameras are using
isochronous
Hello,
The driver for my system's PCIe host bridge landed recently
(in 4.13) but it was developed on 4.9
I tested the PCIe host bridge by plugging a 4-port USB3 adapter
into the PCIe slot (system at rest) and plugging an USB3 Flash
drive into the USB3 adapter (at run-time).
On 4.9, the setup wor
Yes you're right. I'm not sure that would be the best approach though
since you'd have to iterate through every function instance, and you'd
end up leaking the memory if the device was open. I'm working on
modifying the original patch to make use of the opts refcnt as well.
On Mon, Aug 21, 2017 at
On Tue, 22 Aug 2017, Martin Oprešnik wrote:
> Hello,
>
> we are working on a project, where we need multiple cameras connected to
> embedded computer. For computer we have chosen odroid XU4 and for
> cameras Logitech C920. We need at least 5 cameras running with 720p. The
> problem we have is
On Tue, 22 Aug 2017, Anton Vasilyev wrote:
> Sorry for delayed reply.
>
> On 16.08.2017 19:35, Alan Stern wrote:
> > On Wed, 16 Aug 2017, Anton Vasilyev wrote:
> >
> >> On 16.08.2017 18:29, Alan Stern wrote:
> >>> On Wed, 16 Aug 2017, Anton Vasilyev wrote:
> >>>
> gadget_release() is respon
Has anyone here looked into reducing the amount of time the USB serial
driver disables interrupts? On an ARM system, I'm seeing about 746 us
of latency for handling a USB interrupt, which seems rather excessive.
I attached a trace captured with the irqsoff tracer.
Note: the 500MHz ARM cycle count
On Mon, Aug 21, 2017 at 02:41:37PM +0300, Felipe Balbi wrote:
>
> Hi Greg,
>
> Here's the USB gadget pull request. Not much going on this time around.
>
> Changes have been in linux-next for a while with no bug reports. I have
> also tested what I could on GLK.
>
> Let me know if you want anyth
On Tue, Aug 22, 2017 at 12:42:33PM -0600, David Mosberger wrote:
> Has anyone here looked into reducing the amount of time the USB serial
> driver disables interrupts? On an ARM system, I'm seeing about 746 us
> of latency for handling a USB interrupt, which seems rather excessive.
> I attached a
Greg,
On Tue, Aug 22, 2017 at 2:25 PM, Greg KH wrote:
> USB has always been a big problem with this, the IRQ patch is very long,
> and messy and complex.
Yeah.
> There was an option a while ago to turn USB irqs
> into threaded irqs, do those work on your platform? If so, that might
> help you
On Tue, Aug 22, 2017 at 02:44:20PM -0600, David Mosberger wrote:
> Greg,
>
> On Tue, Aug 22, 2017 at 2:25 PM, Greg KH wrote:
>
> > USB has always been a big problem with this, the IRQ patch is very long,
> > and messy and complex.
>
> Yeah.
>
> > There was an option a while ago to turn USB irq
On Tue, Aug 22, 2017 at 3:40 PM, Greg KH wrote:
> On Tue, Aug 22, 2017 at 02:44:20PM -0600, David Mosberger wrote:
>> Greg,
>>
>> On Tue, Aug 22, 2017 at 2:25 PM, Greg KH wrote:
>>
>> > USB has always been a big problem with this, the IRQ patch is very long,
>> > and messy and complex.
>>
>> Yeah
Hi, Mathias
On Wed, 2017-08-16 at 14:08 +0800, Chunfeng Yun wrote:
> The xhci-mtk driver is a generic driver for MediaTek xHCI IP, add
> a generic compatible to avoid confusion when support new SoCs but
> use a compatible with specific SoC's name "mt8173".
>
> Signed-off-by: Chunfeng Yun
> ---
>
On Sun, Aug 20, 2017 at 09:43:01PM +0300, IFo Hancroft wrote:
> Hello Everyone,
>
> Greg Kroah-Hartman directed me to here.
>
> Here is what I am trying to do, what problems am I facing and what I've
> tried so far:
>
> My keyboard is USB and it is supposed to have NKRO (the ability to
> registe
Hi,
Alan Stern writes:
> On Tue, 22 Aug 2017, Martin Oprešnik wrote:
>
>> Hello,
>>
>> we are working on a project, where we need multiple cameras connected to
>> embedded computer. For computer we have chosen odroid XU4 and for
>> cameras Logitech C920. We need at least 5 cameras running wit
Hi,
Mason writes:
> Hello,
>
> The driver for my system's PCIe host bridge landed recently
> (in 4.13) but it was developed on 4.9
>
> I tested the PCIe host bridge by plugging a 4-port USB3 adapter
> into the PCIe slot (system at rest) and plugging an USB3 Flash
> drive into the USB3 adapter (a
From: Anshuman Gupta
This patch will improve the variable auto-resume latency of an usb-port.
When xhci gets a port status change event interrupt due to PORT_PLC
(port link state transition), linux Host controller driver drives the
resume signalling on the bus for the amount of time defined by
U
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