It looks like the warning appeared with this first commit: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dcb17d22e1c2cd72e72190c736349a675362b3bc but was later corrected with this second one: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0b9aefea860063bb39e36bd7fe6c7087fed0ba87
The first commit was merged in the 4.9 tree, but not the second one (at least not up to 4.9.106), and was only merged in 4.11. So I would conclude the warning may be harmless, unless you got it on a >= 4.11 kernel. And I also verified I don't get it on such a newer kernel. I would close this bug, but it may eventually be nice to backport the second commit in 4.9 to avoid the harmless warning. -- Informativa sulla Privacy: http://www.unibs.it/node/8155 <http://www.unibs.it/node/8155>
