Re: [PATCH] usb: hub: Prevent hub autosuspend if usbcore.autosuspend is -1
From: Greg KH
Date: Wed Aug 27 2014 - 15:20:57 EST
On Wed, Aug 27, 2014 at 01:31:24PM +0300, Roger Quadros wrote:
> On 08/04/2014 05:07 PM, Alan Stern wrote:
> > On Mon, 4 Aug 2014, Roger Quadros wrote:
> >> If user specifies that USB autosuspend must be disabled by module
> >> parameter "usbcore.autosuspend=-1" then we must prevent
> >> autosuspend of USB hub devices as well.
> >> commit 596d789a211d introduced in v3.8 changed the original behaivour
> >> and stopped respecting the usbcore.autosuspend parameter for hubs.
> >> Fixes: 596d789a211d "USB: set hub's default autosuspend delay as 0"
> >> Cc: [3.8+] <stable@xxxxxxxxxxxxxxx>
> >> Signed-off-by: Roger Quadros <rogerq@xxxxxx>
> > Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
> Just noticed the below error by the Intel's build script
> > tree: git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-linus
> > head: 039368901ad0a6476c7ecf0cfe4f84d735e30135
> > commit: bdd405d2a5287bdb9b04670ea255e1f122138e66 [19/20] usb: hub: Prevent hub autosuspend if usbcore.autosuspend is -1
> > config: make ARCH=sparc64 defconfig
> > All error/warnings:
> > drivers/usb/core/hub.c: In function 'hub_probe':
> >>> drivers/usb/core/hub.c:1735:21: error: 'struct dev_pm_info' has no member named 'autosuspend_delay'
> > if (hdev->dev.power.autosuspend_delay >= 0)
> > ^
> Seems like the "if" has to be placed within a #ifdef CONFIG_PM_RUNTIME.
> Should I send a v2 of this patch or a fix on top of your usb-linus branch?
Please send a fix-on-top, as I already have your patch applied, and
can't remove it.
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