mm/swapfile.c:2097:12: error: conflicting types for 'unuse_mm'
drivers/vfio/vfio_iommu_type1.c:2820:3: error: implicit declaration of function 'use_mm'; did you mean 'dump_mm'? [-Werror=implicit-function-declaration]
drivers/vfio/vfio_iommu_type1.c:2847:3: error: implicit declaration of function 'unuse_mm'; did you mean 'leave_mm'? [-Werror=implicit-function-declaration]