s390/qeth: remove unused return value

qeth_qdio_output_handler() is the only caller of
qeth_handle_send_error() and doesn't care about the return value.

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/s390/net/qeth_core.h

@@ -503,13 +503,6 @@ struct qeth_qdio_info {
 	int default_out_queue;
 };
 
-enum qeth_send_errors {
-	QETH_SEND_ERROR_NONE,
-	QETH_SEND_ERROR_LINK_FAILURE,
-	QETH_SEND_ERROR_RETRY,
-	QETH_SEND_ERROR_KICK_IT,
-};
-
 #define QETH_ETH_MAC_V4      0x0100 /* like v4 */
 #define QETH_ETH_MAC_V6      0x3333 /* like v6 */
 /* tr mc mac is longer, but that will be enough to detect mc frames */

drivers/s390/net/qeth_core_main.c

@@ -3322,7 +3322,7 @@ void qeth_queue_input_buffer(struct qeth_card *card, int index)
 }
 EXPORT_SYMBOL_GPL(qeth_queue_input_buffer);
 
-static int qeth_handle_send_error(struct qeth_card *card,
+static void qeth_handle_send_error(struct qeth_card *card,
 		struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err)
 {
 	int sbalf15 = buffer->buffer->element[15].sflags;
@@ -3338,15 +3338,14 @@ static int qeth_handle_send_error(struct qeth_card *card,
 	qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr");
 
 	if (!qdio_err)
-		return QETH_SEND_ERROR_NONE;
+		return;
 
 	if ((sbalf15 >= 15) && (sbalf15 <= 31))
-		return QETH_SEND_ERROR_RETRY;
+		return;
 
 	QETH_CARD_TEXT(card, 1, "lnkfail");
 	QETH_CARD_TEXT_(card, 1, "%04x %02x",
 		       (u16)qdio_err, (u8)sbalf15);
-	return QETH_SEND_ERROR_LINK_FAILURE;
 }
 
 /*