[PATCH] uio: add SPDX license tags

[Greg KH]

On Sat, Jul 21, 2018 at 06:31:39AM -0700, Stephen Hemminger wrote:
> For those without any license text present or short reference
> to GPL, add SPDX tag.
> 
> Signed-off-by: Stephen Hemminger <sthemmin at microsoft.com>

Thanks, now queued up.

greg k-h