On Wed, Sep 29, 2021 at 7:39 PM Kuppuswamy, Sathyanarayanan
<sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx> wrote:
>
>
>
> On 9/29/21 6:55 PM, Dan Williams wrote:
> >> Also, you ignored the usb_[de]authorize_interface() functions and
> >> their friends.
> > Ugh, yes.
>
> I did not change it because I am not sure about the interface vs device
> dependency.
>
This is was the rationale for has_probe_authorization flag. USB
performs authorization of child devices based on the authorization
state of the parent interface.
> I think following change should work.
>
> diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
> index f57b5a7a90ca..84969732d09c 100644
> --- a/drivers/usb/core/driver.c
> +++ b/drivers/usb/core/driver.c
> @@ -334,7 +334,7 @@ static int usb_probe_interface(struct device *dev)
> if (udev->dev.authorized == false) {
> dev_err(&intf->dev, "Device is not authorized for usage\n");
> return error;
> - } else if (intf->authorized == 0) {
> + } else if (intf->dev.authorized == 0) {
== false.
> dev_err(&intf->dev, "Interface %d is not authorized for usage\n",
> intf->altsetting->desc.bInterfaceNumber);
> return error;
> @@ -546,7 +546,7 @@ int usb_driver_claim_interface(struct usb_driver *driver,
> return -EBUSY;
>
> /* reject claim if interface is not authorized */
> - if (!iface->authorized)
> + if (!iface->dev.authorized)
I'd do == false to keep it consistent with other conversions.
> return -ENODEV;
>
> dev->driver = &driver->drvwrap.driver;
> diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
> index 47548ce1cfb1..ab3c8d1e4db9 100644
> --- a/drivers/usb/core/message.c
> +++ b/drivers/usb/core/message.c
> @@ -1791,9 +1791,9 @@ void usb_deauthorize_interface(struct usb_interface *intf)
>
> device_lock(dev->parent);
>
> - if (intf->authorized) {
> + if (intf->dev.authorized) {
> device_lock(dev);
> - intf->authorized = 0;
> + intf->dev.authorized = 0;
= false;
> device_unlock(dev);
>
> usb_forced_unbind_intf(intf);
> @@ -1811,9 +1811,9 @@ void usb_authorize_interface(struct usb_interface *intf)
> {
> struct device *dev = &intf->dev;
>
> - if (!intf->authorized) {
> + if (!intf->dev.authorized) {
> device_lock(dev);
> - intf->authorized = 1; /* authorize interface */
> + intf->dev.authorized = 1; /* authorize interface */
= true
...not sure that comment is worth preserving.
