[bug report] net/mlx5e: E-Switch, Maintain vhca_id to vport_num mapping

[Dan Carpenter <dan.carpenter@xxxxxxxxxx>]

Hello Vlad Buslov,

The patch 84ae9c1f29c0: "net/mlx5e: E-Switch, Maintain vhca_id to
vport_num mapping" from Sep 23, 2020, leads to the following static
checker warning:

	drivers/net/ethernet/mellanox/mlx5/core/vport.c:1170 mlx5_vport_get_other_func_cap()
	warn: odd binop '0x0 & 0x1'

drivers/net/ethernet/mellanox/mlx5/core/vport.c
  1168  int mlx5_vport_get_other_func_cap(struct mlx5_core_dev *dev, u16 function_id, void *out)
  1169  {
  1170          u16 opmod = (MLX5_CAP_GENERAL << 1) | (HCA_CAP_OPMOD_GET_MAX & 0x01);

HCA_CAP_OPMOD_GET_MAX is zero.  The 0x01 is a magical number.

  1171          u8 in[MLX5_ST_SZ_BYTES(query_hca_cap_in)] = {};
  1172  
  1173          MLX5_SET(query_hca_cap_in, in, opcode, MLX5_CMD_OP_QUERY_HCA_CAP);
  1174          MLX5_SET(query_hca_cap_in, in, op_mod, opmod);
  1175          MLX5_SET(query_hca_cap_in, in, function_id, function_id);
  1176          MLX5_SET(query_hca_cap_in, in, other_function, true);
  1177          return mlx5_cmd_exec_inout(dev, query_hca_cap, in, out);
  1178  }

regards,
dan carpenter