On Wed, 26 Jun 2013, Ming Lei wrote:
> USB spec stats that short packet can only appear at the end
> of transfer. Because lost of HC(EHCI/UHCI/OHCI/...) can't
> build a full packet from discontinuous buffers, we introduce
> the limit in usb_submit_urb() to avoid such kind of bad sg buffers
> comin
USB spec stats that short packet can only appear at the end
of transfer. Because lost of HC(EHCI/UHCI/OHCI/...) can't
build a full packet from discontinuous buffers, we introduce
the limit in usb_submit_urb() to avoid such kind of bad sg buffers
coming from driver.
The limit might be a bit strict:
