static int qeth_bridgeport_makerc()

in net/qeth_l2_main.c [1550:1646]

• 94 lines of code
• 29 McCabe index (conditional complexity)

static int qeth_bridgeport_makerc(struct qeth_card *card,
				  struct qeth_ipa_cmd *cmd)
{
	struct qeth_ipacmd_setbridgeport *sbp = &cmd->data.sbp;
	enum qeth_ipa_sbp_cmd setcmd = sbp->hdr.command_code;
	u16 ipa_rc = cmd->hdr.return_code;
	u16 sbp_rc = sbp->hdr.return_code;
	int rc;

	if (ipa_rc == IPA_RC_SUCCESS && sbp_rc == IPA_RC_SUCCESS)
		return 0;

	if ((IS_IQD(card) && ipa_rc == IPA_RC_SUCCESS) ||
	    (!IS_IQD(card) && ipa_rc == sbp_rc)) {
		switch (sbp_rc) {
		case IPA_RC_SUCCESS:
			rc = 0;
			break;
		case IPA_RC_L2_UNSUPPORTED_CMD:
		case IPA_RC_UNSUPPORTED_COMMAND:
			rc = -EOPNOTSUPP;
			break;
		case IPA_RC_SBP_OSA_NOT_CONFIGURED:
		case IPA_RC_SBP_IQD_NOT_CONFIGURED:
			rc = -ENODEV; /* maybe not the best code here? */
			dev_err(&card->gdev->dev,
	"The device is not configured as a Bridge Port\n");
			break;
		case IPA_RC_SBP_OSA_OS_MISMATCH:
		case IPA_RC_SBP_IQD_OS_MISMATCH:
			rc = -EPERM;
			dev_err(&card->gdev->dev,
	"A Bridge Port is already configured by a different operating system\n");
			break;
		case IPA_RC_SBP_OSA_ANO_DEV_PRIMARY:
		case IPA_RC_SBP_IQD_ANO_DEV_PRIMARY:
			switch (setcmd) {
			case IPA_SBP_SET_PRIMARY_BRIDGE_PORT:
				rc = -EEXIST;
				dev_err(&card->gdev->dev,
	"The LAN already has a primary Bridge Port\n");
				break;
			case IPA_SBP_SET_SECONDARY_BRIDGE_PORT:
				rc = -EBUSY;
				dev_err(&card->gdev->dev,
	"The device is already a primary Bridge Port\n");
				break;
			default:
				rc = -EIO;
			}
			break;
		case IPA_RC_SBP_OSA_CURRENT_SECOND:
		case IPA_RC_SBP_IQD_CURRENT_SECOND:
			rc = -EBUSY;
			dev_err(&card->gdev->dev,
	"The device is already a secondary Bridge Port\n");
			break;
		case IPA_RC_SBP_OSA_LIMIT_SECOND:
		case IPA_RC_SBP_IQD_LIMIT_SECOND:
			rc = -EEXIST;
			dev_err(&card->gdev->dev,
	"The LAN cannot have more secondary Bridge Ports\n");
			break;
		case IPA_RC_SBP_OSA_CURRENT_PRIMARY:
		case IPA_RC_SBP_IQD_CURRENT_PRIMARY:
			rc = -EBUSY;
			dev_err(&card->gdev->dev,
	"The device is already a primary Bridge Port\n");
			break;
		case IPA_RC_SBP_OSA_NOT_AUTHD_BY_ZMAN:
		case IPA_RC_SBP_IQD_NOT_AUTHD_BY_ZMAN:
			rc = -EACCES;
			dev_err(&card->gdev->dev,
	"The device is not authorized to be a Bridge Port\n");
			break;
		default:
			rc = -EIO;
		}
	} else {
		switch (ipa_rc) {
		case IPA_RC_NOTSUPP:
			rc = -EOPNOTSUPP;
			break;
		case IPA_RC_UNSUPPORTED_COMMAND:
			rc = -EOPNOTSUPP;
			break;
		default:
			rc = -EIO;
		}
	}

	if (rc) {
		QETH_CARD_TEXT_(card, 2, "SBPi%04x", ipa_rc);
		QETH_CARD_TEXT_(card, 2, "SBPc%04x", sbp_rc);
	}
	return rc;
}