_PDEVF_op_active
if (!test_bit(_PDEVF_op_active, &pdev->flags))
#define PDEVF_op_active (1<<(_PDEVF_op_active))
!test_and_set_bit(_PDEVF_op_active, &pdev->flags);
clear_bit(_PDEVF_op_active, &pdev->flags);