net: qualcomm: Improve readability of length defines

In order to avoid mixing things up, make the MTU and frame length
defines easier to read.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/qualcomm/qca_framing.c

@@ -117,7 +117,7 @@ qcafrm_fsm_decode(struct qcafrm_handle *handle, u8 *buf, u16 buf_len, u8 recv_by
 		break;
 	case QCAFRM_WAIT_RSVD_BYTE2:
 		len = handle->offset;
-		if (len > buf_len || len < QCAFRM_ETHMINLEN) {
+		if (len > buf_len || len < QCAFRM_MIN_LEN) {
 			ret = QCAFRM_INVLEN;
 			handle->state = QCAFRM_HW_LEN0;
 		} else {

drivers/net/ethernet/qualcomm/qca_framing.h

@@ -44,12 +44,12 @@
 #define QCAFRM_INVFRAME (QCAFRM_ERR_BASE - 4)
 
 /* Min/Max Ethernet MTU: 46/1500 */
-#define QCAFRM_ETHMINMTU (ETH_ZLEN - ETH_HLEN)
-#define QCAFRM_ETHMAXMTU ETH_DATA_LEN
+#define QCAFRM_MIN_MTU (ETH_ZLEN - ETH_HLEN)
+#define QCAFRM_MAX_MTU ETH_DATA_LEN
 
 /* Min/Max frame lengths */
-#define QCAFRM_ETHMINLEN (QCAFRM_ETHMINMTU + ETH_HLEN)
-#define QCAFRM_ETHMAXLEN (QCAFRM_ETHMAXMTU + VLAN_ETH_HLEN)
+#define QCAFRM_MIN_LEN (QCAFRM_MIN_MTU + ETH_HLEN)
+#define QCAFRM_MAX_LEN (QCAFRM_MAX_MTU + VLAN_ETH_HLEN)
 
 /* QCA7K header len */
 #define QCAFRM_HEADER_LEN 8

drivers/net/ethernet/qualcomm/qca_spi.c

@@ -69,7 +69,7 @@ static int qcaspi_pluggable = QCASPI_PLUGGABLE_MIN;
 module_param(qcaspi_pluggable, int, 0);
 MODULE_PARM_DESC(qcaspi_pluggable, "Pluggable SPI connection (yes/no).");
 
-#define QCASPI_MTU QCAFRM_ETHMAXMTU
+#define QCASPI_MTU QCAFRM_MAX_MTU
 #define QCASPI_TX_TIMEOUT (1 * HZ)
 #define QCASPI_QCA7K_REBOOT_TIME_MS 1000
 
@@ -403,7 +403,7 @@ qcaspi_tx_ring_has_space(struct tx_ring *txr)
 	if (txr->skb[txr->tail])
 		return 0;
 
-	return (txr->size + QCAFRM_ETHMAXLEN < QCASPI_HW_BUF_LEN) ? 1 : 0;
+	return (txr->size + QCAFRM_MAX_LEN < QCASPI_HW_BUF_LEN) ? 1 : 0;
 }
 
 /*   Flush the tx ring. This function is only safe to
@@ -667,8 +667,8 @@ qcaspi_netdev_xmit(struct sk_buff *skb, struct net_device *dev)
 	struct sk_buff *tskb;
 	u8 pad_len = 0;
 
-	if (skb->len < QCAFRM_ETHMINLEN)
-		pad_len = QCAFRM_ETHMINLEN - skb->len;
+	if (skb->len < QCAFRM_MIN_LEN)
+		pad_len = QCAFRM_MIN_LEN - skb->len;
 
 	if (qca->txr.skb[qca->txr.tail]) {
 		netdev_warn(qca->net_dev, "queue was unexpectedly full!\n");
@@ -805,8 +805,8 @@ qcaspi_netdev_setup(struct net_device *dev)
 	dev->tx_queue_len = 100;
 
 	/* MTU range: 46 - 1500 */
-	dev->min_mtu = QCAFRM_ETHMINMTU;
-	dev->max_mtu = QCAFRM_ETHMAXMTU;
+	dev->min_mtu = QCAFRM_MIN_MTU;
+	dev->max_mtu = QCAFRM_MAX_MTU;
 
 	qca = netdev_priv(dev);
 	memset(qca, 0, sizeof(struct qcaspi));