From: Grygorii Strashko <grygorii.strashko@xxxxxx> Don't produce warning and interpret 0 as "default align" equal to SMP_CACHE_BYTES in case if caller of memblock_alloc_base_nid() doesn't specify alignment for the block (align == 0). This is done in preparation of introducing common memblock alloc interface to make code behavior consistent. More details are in below thread : https://lkml.org/lkml/2013/10/13/117. Cc: Yinghai Lu <yinghai@xxxxxxxxxx> Cc: Tejun Heo <tj@xxxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Grygorii Strashko <grygorii.strashko@xxxxxx> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx> --- mm/memblock.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/memblock.c b/mm/memblock.c index 39855d4..784958d 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -883,8 +883,8 @@ static phys_addr_t __init memblock_alloc_base_nid(phys_addr_t size, { phys_addr_t found; - if (WARN_ON(!align)) - align = __alignof__(long long); + if (!align) + align = SMP_CACHE_BYTES; /* align @size to avoid excessive fragmentation on reserved array */ size = round_up(size, align); -- 1.7.9.5 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>