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usb: Provide usb_speed_string() function

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In a few places in the kernel, the code prints
a human-readable USB device speed (eg. "high speed").
This involves a switch statement sometimes wrapped
around in ({ ... }) block leading to code repetition.

To mitigate this issue, this commit introduces
usb_speed_string() function, which returns
a human-readable name of provided speed.

It also changes a few places switch was used to use
this new function.  This changes a bit the way the
speed is printed in few instances at the same time
standardising it.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Michal Nazarewicz
2011-08-30 17:11:19 +02:00
committed by Greg Kroah-Hartman
parent c58a76cdd7
commit e538dfdae8
18 changed files with 125 additions and 195 deletions
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9
drivers/usb/gadget/amd5536udc.c
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@@ -3005,13 +3005,8 @@ __acquires(dev->lock)
/* link up all endpoints */
udc_setup_endpoints(dev);
if (dev->gadget.speed == USB_SPEED_HIGH) {
dev_info(&dev->pdev->dev, "Connect: speed = %s\n",
"high");
} else if (dev->gadget.speed == USB_SPEED_FULL) {
dev_info(&dev->pdev->dev, "Connect: speed = %s\n",
"full");
}
dev_info(&dev->pdev->dev, "Connect: %s\n",
usb_speed_string(dev->gadget.speed));
/* init ep 0 */
activate_control_endpoints(dev);