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| author | Lan Tianyu <tianyu.lan@intel.com> | 2012-09-05 13:44:32 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-10 12:59:42 -0700 |
| commit | ff823c79a5c33194c2e5594f7c4686ea3547910c (patch) | |
| tree | 0685b5aee627d7f3440dc09865a7715406cfee54 /drivers/usb/host/r8a66597-hcd.c | |
| parent | fa2a9566257a3b62c328ea5d621ccf5952079dac (diff) | |
| download | op-kernel-dev-ff823c79a5c33194c2e5594f7c4686ea3547910c.zip op-kernel-dev-ff823c79a5c33194c2e5594f7c4686ea3547910c.tar.gz | |
usb: move children to struct usb_port
The usb_device structure contains an array of usb_device "children".
This array is only valid if the usb_device is a hub, so it makes no
sense to store it there. Instead, store the usb_device child
in its parent usb_port structure.
Since usb_port is an internal USB core structure, add a new function to
get the USB device child, usb_hub_find_child(). Add a new macro,
usb_hub_get_each_child(), to iterate over all the children attached to a
particular USB hub.
Remove the printing the USB children array pointer from the usb-ip
driver, since it's really not necessary.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/r8a66597-hcd.c')
| -rw-r--r-- | drivers/usb/host/r8a66597-hcd.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 4c634eb..fcc09e5 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -2029,15 +2029,14 @@ static int r8a66597_get_frame(struct usb_hcd *hcd) static void collect_usb_address_map(struct usb_device *udev, unsigned long *map) { int chix; + struct usb_device *childdev; if (udev->state == USB_STATE_CONFIGURED && udev->parent && udev->parent->devnum > 1 && udev->parent->descriptor.bDeviceClass == USB_CLASS_HUB) map[udev->devnum/32] |= (1 << (udev->devnum % 32)); - for (chix = 0; chix < udev->maxchild; chix++) { - struct usb_device *childdev = udev->children[chix]; - + usb_hub_for_each_child(udev, chix, childdev) { if (childdev) collect_usb_address_map(childdev, map); } |
