2010/2/2 Catalin Marinas <catalin.marinas@xxxxxxx>:
> + if (usb_pipein(urb->pipe) && usb_pipetype(urb->pipe) == PIPE_BULK) {
> + void *ptr;
> + for (ptr = urb->transfer_buffer;
> + ptr < urb->transfer_buffer + urb->transfer_buffer_length;
> + ptr += PAGE_SIZE)
> + flush_dcache_page(virt_to_page(ptr));
If the page is mapped into highmem, seems virt_to_page doesn't work well.
--
Lei Ming
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