On CONFIG_PPC32=y build fails:
drivers/nvdimm/region_devs.c:1034:14: note: in expansion of macro ‘do_div’
remainder = do_div(per_mapping, mappings);
^~~~~~
In file included from ./arch/powerpc/include/generated/asm/div64.h:1:0,
from ./include/linux/kernel.h:18,
from ./include/asm-generic/bug.h:19,
from ./arch/powerpc/include/asm/bug.h:109,
from ./include/linux/bug.h:5,
from ./include/linux/scatterlist.h:7,
from drivers/nvdimm/region_devs.c:5:
./include/asm-generic/div64.h:243:22: error: passing argument 1 of ‘__div64_32’ from incompatible pointer type [-Werror=incompatible-pointer-types]
__rem = __div64_32(&(n), __base); \
Use div_u64 instead of do_div to fix this.
Fixes: 2522afb86a ("libnvdimm/region: Introduce an 'align' attribute")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20200331115024.31628-1-yuehaibing@huawei.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
04ff4863e1