diff options
| author |   Viral Mehta <viral.mehta@einfochips.com> | 2009-05-05 15:54:23 +0530 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2009-06-15 21:44:50 -0700 |
| commit | 7dd19e69d131ea34f74397559b422511e54d2911 (patch) | |
| tree | 1b455948d554cc02cf36d31e3915446c557a424a /drivers/usb/core/hcd.c | |
| parent | USB: xhci: Make xhci-mem.c include linux/dmapool.h (diff) | |
| download | linux-dev-7dd19e69d131ea34f74397559b422511e54d2911.tar.xz linux-dev-7dd19e69d131ea34f74397559b422511e54d2911.zip | |
USB: xhci: replace if-elseif-else with switch-case
Replace if-elseif-else with switch-case
to keep the code consistent which is semantically same
Switch-case is used here,
http://www.spinics.net/lists/linux-usb/msg17201.html
Making consistent at other places in usb/core
Also easier to read and maintain when USB4.0, 5.0, ... comes
Signed-off-by: Viral Mehta <viral.mehta@einfochips.com>
Tested-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/core/hcd.c')
| -rw-r--r-- | drivers/usb/core/hcd.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 1609623ec829..ce3f453f02ef 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -488,28 +488,39 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb) case DeviceRequest | USB_REQ_GET_DESCRIPTOR: switch (wValue & 0xff00) { case USB_DT_DEVICE << 8: - if (hcd->driver->flags & HCD_USB3) + switch (hcd->driver->flags & HCD_MASK) { + case HCD_USB3: bufp = usb3_rh_dev_descriptor; - else if (hcd->driver->flags & HCD_USB2) + break; + case HCD_USB2: bufp = usb2_rh_dev_descriptor; - else if (hcd->driver->flags & HCD_USB11) + break; + case HCD_USB11: bufp = usb11_rh_dev_descriptor; - else + break; + default: goto error; + } len = 18; if (hcd->has_tt) patch_protocol = 1; break; case USB_DT_CONFIG << 8: - if (hcd->driver->flags & HCD_USB3) { + switch (hcd->driver->flags & HCD_MASK) { + case HCD_USB3: bufp = ss_rh_config_descriptor; len = sizeof ss_rh_config_descriptor; - } else if (hcd->driver->flags & HCD_USB2) { + break; + case HCD_USB2: bufp = hs_rh_config_descriptor; len = sizeof hs_rh_config_descriptor; - } else { + break; + case HCD_USB11: bufp = fs_rh_config_descriptor; len = sizeof fs_rh_config_descriptor; + break; + default: + goto error; } if (device_can_wakeup(&hcd->self.root_hub->dev)) patch_wakeup = 1; |