drivers: base: dma-mapping: use nth_page helper
Use nth_page() helper instead of page_to_pfn() and pfn_to_page() to simplify the code. Signed-off-by:Geliang Tang <geliangtang@gmail.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Showing
Please register or sign in to comment