diff options
| author | Michal Nazarewicz <mina86@mina86.com> | 2011-08-30 17:11:19 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-09-18 01:29:04 -0700 |
| commit | e538dfdae85244fd2c4231725d82cc1f1bc4942c (patch) | |
| tree | f8471dd9af305b95557d29a30f427c85418b1621 /drivers/usb/core/hub.c | |
| parent | c58a76cdd7ab5a945a44fd2d64f6faf40323f95b (diff) | |
usb: Provide usb_speed_string() function
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>
Diffstat (limited to 'drivers/usb/core/hub.c')
| -rw-r--r-- | drivers/usb/core/hub.c | 27 |
1 files changed, 9 insertions, 18 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 338f91ff54c..3edc01bc41f 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2793,7 +2793,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, int i, j, retval; unsigned delay = HUB_SHORT_RESET_TIME; enum usb_device_speed oldspeed = udev->speed; - char *speed, *type; + const char *speed; int devnum = udev->devnum; /* root hub ports have a slightly longer reset period @@ -2853,25 +2853,16 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, default: goto fail; } - - type = ""; - switch (udev->speed) { - case USB_SPEED_LOW: speed = "low"; break; - case USB_SPEED_FULL: speed = "full"; break; - case USB_SPEED_HIGH: speed = "high"; break; - case USB_SPEED_SUPER: - speed = "super"; - break; - case USB_SPEED_WIRELESS: - speed = "variable"; - type = "Wireless "; - break; - default: speed = "?"; break; - } + + if (udev->speed == USB_SPEED_WIRELESS) + speed = "variable speed Wireless"; + else + speed = usb_speed_string(udev->speed); + if (udev->speed != USB_SPEED_SUPER) dev_info(&udev->dev, - "%s %s speed %sUSB device number %d using %s\n", - (udev->config) ? "reset" : "new", speed, type, + "%s %s USB device number %d using %s\n", + (udev->config) ? "reset" : "new", speed, devnum, udev->bus->controller->driver->name); /* Set up TT records, if needed */ |