Commit e675483e authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Greg Kroah-Hartman

usb: hub: Move hub_port_disable() to fix warning if PM is disabled

commit 3bc02bce upstream.

If CONFIG_PM=n:

    drivers/usb/core/hub.c:107: warning: ‘hub_usb3_port_prepare_disable’ declared inline after being called
    drivers/usb/core/hub.c:107: warning: previous declaration of ‘hub_usb3_port_prepare_disable’ was here

To fix this, move hub_port_disable() after
hub_usb3_port_prepare_disable(), and adjust forward declarations.

Fixes: 37be6676 ("usb: hub: Fix auto-remount of safely removed or ejected USB-3 devices")
Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 02ef64ac
......@@ -101,8 +101,7 @@ EXPORT_SYMBOL_GPL(ehci_cf_port_reset_rwsem);
static void hub_release(struct kref *kref);
static int usb_reset_and_verify_device(struct usb_device *udev);
static void hub_usb3_port_prepare_disable(struct usb_hub *hub,
struct usb_port *port_dev);
static int hub_port_disable(struct usb_hub *hub, int port1, int set_state);
static inline char *portspeed(struct usb_hub *hub, int portstatus)
{
......@@ -884,34 +883,6 @@ static int hub_set_port_link_state(struct usb_hub *hub, int port1,
USB_PORT_FEAT_LINK_STATE);
}
/*
* USB-3 does not have a similar link state as USB-2 that will avoid negotiating
* a connection with a plugged-in cable but will signal the host when the cable
* is unplugged. Disable remote wake and set link state to U3 for USB-3 devices
*/
static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
{
struct usb_port *port_dev = hub->ports[port1 - 1];
struct usb_device *hdev = hub->hdev;
int ret = 0;
if (!hub->error) {
if (hub_is_superspeed(hub->hdev)) {
hub_usb3_port_prepare_disable(hub, port_dev);
ret = hub_set_port_link_state(hub, port_dev->portnum,
USB_SS_PORT_LS_U3);
} else {
ret = usb_clear_port_feature(hdev, port1,
USB_PORT_FEAT_ENABLE);
}
}
if (port_dev->child && set_state)
usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED);
if (ret && ret != -ENODEV)
dev_err(&port_dev->dev, "cannot disable (err = %d)\n", ret);
return ret;
}
/*
* Disable a port and mark a logical connect-change event, so that some
* time later hub_wq will disconnect() any existing usb_device on the port
......@@ -4086,6 +4057,34 @@ static int hub_handle_remote_wakeup(struct usb_hub *hub, unsigned int port,
#endif /* CONFIG_PM */
/*
* USB-3 does not have a similar link state as USB-2 that will avoid negotiating
* a connection with a plugged-in cable but will signal the host when the cable
* is unplugged. Disable remote wake and set link state to U3 for USB-3 devices
*/
static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
{
struct usb_port *port_dev = hub->ports[port1 - 1];
struct usb_device *hdev = hub->hdev;
int ret = 0;
if (!hub->error) {
if (hub_is_superspeed(hub->hdev)) {
hub_usb3_port_prepare_disable(hub, port_dev);
ret = hub_set_port_link_state(hub, port_dev->portnum,
USB_SS_PORT_LS_U3);
} else {
ret = usb_clear_port_feature(hdev, port1,
USB_PORT_FEAT_ENABLE);
}
}
if (port_dev->child && set_state)
usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED);
if (ret && ret != -ENODEV)
dev_err(&port_dev->dev, "cannot disable (err = %d)\n", ret);
return ret;
}
/* USB 2.0 spec, 7.1.7.3 / fig 7-29:
*
......
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