xHCI: refine td allocation

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In xhci_urb_enqueue(), allocate a block of memory for all the TDs instead
of allocating memory for each of them separately. This reduces the number
of kzalloc calling when an isochronous usb is submitted.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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Andiry Xu 2011-09-02 11:05:57 -07:00 • committed by Greg Kroah-Hartman

parent fd984d242a

commit 2ffdea25f0

2 changed files with 12 additions and 17 deletions

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14

drivers/usb/host/xhci-mem.c

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15

drivers/usb/host/xhci.c

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