Just format the code without modifying anything, including fixing some
redundant and missing blanks and spaces and changing the variable
definition order.

Link: https://lore.kernel.org/r/1607650657-35992-8-git-send-email-liweihang@huawei.comSigned-off-by: NLang Cheng <chenglang@huawei.com>
Signed-off-by: NWeihang Li <liweihang@huawei.com>
Signed-off-by: NJason Gunthorpe <jgg@nvidia.com>