it's a refactor to make use of PFN_ALIGN/PFN_UP helper macro
Signed-off-by: NCai Huoqing <caihuoqing@baidu.com>
Signed-off-by: NZack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210802033308.927-1-caihuoqing@baidu.com