Hi Michael, FYI, kernel build failed on tree: git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc.git next head: 8b64a9dfb091f1eca8b7e58da82f1e7d1d5fe0ad commit: 7db90c0222efeae676baa2c72758fcc00666e84f [5/29] powerpc/pasemi: Remove uses of virt_to_abs() and abs_to_virt() config: powerpc-allmodconfig (attached as .config) All related error/warning messages: arch/powerpc/platforms/pasemi/iommu.c: In function 'iob_init': arch/powerpc/platforms/pasemi/iommu.c:195:2: error: implicit declaration of function 'memblock_alloc' [-Werror=implicit-function-declaration] arch/powerpc/platforms/pasemi/iommu.c: In function 'alloc_iobmap_l2': arch/powerpc/platforms/pasemi/iommu.c:260:2: error: implicit declaration of function 'memblock_alloc_base' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors --- 0-DAY kernel build testing backend Open Source Technology Centre Fengguang Wu Intel Corporation