static s32 ixgbe_read_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
					__always_unused u32 device_type,
					u32 *data)
static int ixgbe_read_iosf_sb_reg_x550a(struct ixgbe_hw *hw, u32 reg_addr,
					__always_unused u32 device_type,
					u32 *data)