On Mon, Oct 10, 2016 at 4:41 PM, Tom Herbert <t...@herbertland.com> wrote: > I am hitting this in mlx5 > > drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function > ‘reclaim_pages_cmd.clone.0’: > drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:346: error: call > to ‘__compiletime_assert_346’ declared with attribute error: > BUILD_BUG_ON failed: __mlx5_bit_off(manage_pages_out, pas[i]) % 64 > drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c: In function ‘give_pages’: > drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c:291: error: call > to ‘__compiletime_assert_291’ declared with attribute error: > BUILD_BUG_ON failed: __mlx5_bit_off(manage_pages_in, pas[i]) % 64 >
The expression in BUILD_BUG_ON expands to "((unsigned)(unsigned long)(&(((struct mlx5_ifc_manage_pages_in_bits *)0)->pas[i]))) % 64". The variable array index to pas makes this expression non-constant, I imagine that is where the problem lies. > Bisecting points to: > > commit a533ed5e179cd15512d40282617909d3482a771c > Author: Saeed Mahameed <sae...@mellanox.com> > Date: Sun Jul 17 13:27:25 2016 +0300 > > net/mlx5: Pages management commands via mlx5 ifc > > Thanks, > Tom
