It seems I missed another one in arch/s390, uploaded an update.
On Tue, 5 Dec 2017, Thiago Rafael Becker wrote:
The responsibility for calling groups_sort is now on the caller of set_groups.
- [PATCH 0/3 v3] Move groups_sort outisde of set_groups Thiago Rafael Becker
- [PATCH 3/3 v3] kernel: set_groups doesn't call g... Thiago Rafael Becker
- [PATCH 2/3 v3] kernel: Move groups_sort to the c... Thiago Rafael Becker
- [PATCH 2/3] kernel: Move groups_sort to the ... Thiago Rafael Becker
- Re: [PATCH 2/3 v3] kernel: Move groups_sort ... Thiago Rafael Becker
- [PATCH 1/3 v3] kernel: make groups_sort globally... Thiago Rafael Becker
- Re: [PATCH 0/3 v3] Move groups_sort outisde of s... J. Bruce Fields
