max_segment = 0;
}
-int is_swiotlb_buffer(phys_addr_t paddr)
+static int is_swiotlb_buffer(phys_addr_t paddr)
{
return paddr >= io_tlb_start && paddr < io_tlb_end;
}
* appropriate dma address and length. They are obtained via
* sg_dma_{address,length}(SG).
*
- * NOTE: An implementation may be able to use a smaller number of
- * DMA address/length pairs than there are SG table elements.
- * (for example via virtual mapping capabilities)
- * The routine returns the number of addr/length pairs actually
- * used, at most nents.
- *
* Device ownership issues as mentioned above for swiotlb_map_page are the
* same here.
*/