From: Steven Rostedt (VMware) <[email protected]>
When testing 32 bit x86, my build failed with: ERROR: "__udivdi3" [drivers/infiniband/hw/mlx5/mlx5_ib.ko] undefined! It appears that a few non-ULL roundup() calls were made, which uses a normal division against a 64 bit number. This is fine for x86_64, but on 32 bit x86, it causes the compiler to look for a helper function __udivdi3, which we do not have in the kernel, and thus fails to build. Signed-off-by: Steven Rostedt (VMware) <[email protected]> --- diff --git a/drivers/infiniband/hw/mlx5/cmd.c b/drivers/infiniband/hw/mlx5/cmd.c index e3ec79b8f7f5..f080df9934e8 100644 --- a/drivers/infiniband/hw/mlx5/cmd.c +++ b/drivers/infiniband/hw/mlx5/cmd.c @@ -190,7 +190,7 @@ int mlx5_cmd_alloc_sw_icm(struct mlx5_dm *dm, int type, u64 length, u16 uid, phys_addr_t *addr, u32 *obj_id) { struct mlx5_core_dev *dev = dm->dev; - u32 num_blocks = DIV_ROUND_UP(length, MLX5_SW_ICM_BLOCK_SIZE(dev)); + u32 num_blocks = DIV_ROUND_UP_ULL(length, MLX5_SW_ICM_BLOCK_SIZE(dev)); u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {}; u32 in[MLX5_ST_SZ_DW(create_sw_icm_in)] = {}; unsigned long *block_map; @@ -266,7 +266,7 @@ int mlx5_cmd_dealloc_sw_icm(struct mlx5_dm *dm, int type, u64 length, u16 uid, phys_addr_t addr, u32 obj_id) { struct mlx5_core_dev *dev = dm->dev; - u32 num_blocks = DIV_ROUND_UP(length, MLX5_SW_ICM_BLOCK_SIZE(dev)); + u32 num_blocks = DIV_ROUND_UP_ULL(length, MLX5_SW_ICM_BLOCK_SIZE(dev)); u32 out[MLX5_ST_SZ_DW(general_obj_out_cmd_hdr)] = {}; u32 in[MLX5_ST_SZ_DW(general_obj_in_cmd_hdr)] = {}; unsigned long *block_map; diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index abac70ad5c7c..40d4c5f7ea43 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -2344,7 +2344,7 @@ static int handle_alloc_dm_sw_icm(struct ib_ucontext *ctx, /* Allocation size must a multiple of the basic block size * and a power of 2. */ - act_size = roundup(attr->length, MLX5_SW_ICM_BLOCK_SIZE(dm_db->dev)); + act_size = DIV_ROUND_UP_ULL(attr->length, MLX5_SW_ICM_BLOCK_SIZE(dm_db->dev)); act_size = roundup_pow_of_two(act_size); dm->size = act_size;
