Re: [PATCH 1/3] usb: add function usb_autopm_get_interface_upgrade

[Zhang, Yanmin]

On 2015/5/26 22:12, Greg Kroah-Hartman wrote:

> On Tue, May 26, 2015 at 10:19:57AM +0800, Zhang, Yanmin wrote:
> > Some usb driver has a specific requirement. Their critical functions
> >
> > might be called under both atomic environment and non-atomic environment.
> >
> > If it's under atomic environment, the driver can wake up the device
> >
> > by calling pm_runtime_get_sync directly.
> >
> > If it's under non-atomic environment, the function's caller need wake
> >
> > up the device before the function accesses the device.
> >
> > The patch adds usb_autopm_get_interface_upgrade, a new function to
> >
> > support above capability.
> >
> > Signed-off-by: Zhang Yanmin <yanmin.zhang@xxxxxxxxx>
> >
> > ---
> >
> >   drivers/usb/core/driver.c | 53 +++++++++++++++++++++++++++++++++++++++++++++++
> >
> >   include/linux/usb.h       |  3 +++
> >
> >   2 files changed, 56 insertions(+)
> >
> > diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
> >
> > index 818369a..d07fd8d 100644
> >
> > --- a/drivers/usb/core/driver.c
> >
> > +++ b/drivers/usb/core/driver.c
> >
> > @@ -1684,6 +1684,59 @@ int usb_autopm_get_interface(struct usb_interface *intf)
> >
> >   EXPORT_SYMBOL_GPL(usb_autopm_get_interface);
> >
> >
> >   /**
> >
> > + * usb_autopm_get_interface_retry - increment a USB interface's PM-usage counter
> >
> > + * @intf: the usb_interface whose counter should be incremented
> Your emails are obviously corrupted and can't be applied..  Please fix
> up and resend all of them.
Sorry. I didn't send patches for a long time. I would resend the 
patchset again.


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