[PATCH] fix compiler warnings in mv64340_eth

[Christoph Hellwig <hch@xxxxxx>]

The driver was trying to do pointer arithmetic on integers but forgot
half of the casts..

Let's just do normal integer arithmetics instead.


--- drivers/net/mv64340_eth.c~  2004-07-06 14:26:47.163242160 +0200
+++ drivers/net/mv64340_eth.c   2004-07-06 14:48:31.053020784 +0200
@@ -752,9 +752,8 @@
                p_rx_desc[i].byte_cnt = 0x0000;
                p_rx_desc[i].cmd_sts =
                        ETH_BUFFER_OWNED_BY_DMA | ETH_RX_ENABLE_INTERRUPT;
-               p_rx_desc[i].next_desc_ptr =
-                       (struct eth_rx_desc *) mp->rx_desc_dma +
-                               (i + 1) % rx_desc_num;
+               p_rx_desc[i].next_desc_ptr = mp->rx_desc_dma +
+                       ((i + 1) % rx_desc_num) * sizeof(struct eth_rx_desc);
                p_rx_desc[i].buf_ptr = buffer_addr;
 
                mp->rx_skb[i] = NULL;
@@ -818,9 +817,8 @@
                p_tx_desc[i].byte_cnt   = 0x0000;
                p_tx_desc[i].l4i_chk    = 0x0000;
                p_tx_desc[i].cmd_sts    = 0x00000000;
-               p_tx_desc[i].next_desc_ptr =
-                       (struct eth_tx_desc *) mp->tx_desc_dma +
-                       (i + 1) % tx_desc_num;
+               p_tx_desc[i].next_desc_ptr = mp->tx_desc_dma +
+                       ((i + 1) % tx_desc_num) * sizeof(struct eth_tx_desc);
                p_tx_desc[i].buf_ptr    = 0x00000000;
                mp->tx_skb[i]           = NULL;
        }
@@ -2329,8 +2349,8 @@
                 first_descriptor->cmd_sts = command_status;
                 first_descriptor->byte_cnt = p_pkt_info->byte_cnt;
                 first_descriptor->buf_ptr = p_pkt_info->buf_ptr;
-                first_descriptor->next_desc_ptr =
-                       (struct eth_tx_desc *) mp->tx_desc_dma + tx_next_desc;
+                first_descriptor->next_desc_ptr = mp->tx_desc_dma +
+                       tx_next_desc * sizeof(struct eth_tx_desc);
                wmb();
         } else {
                 tx_first_desc = mp->tx_first_desc_q;
@@ -2343,8 +2363,8 @@
                         current_descriptor->next_desc_ptr = 0x00000000;
                 else {
                         command_status |= ETH_BUFFER_OWNED_BY_DMA;
-                        current_descriptor->next_desc_ptr =
-                         (struct eth_tx_desc *) mp->tx_desc_dma + tx_next_desc;
+                        current_descriptor->next_desc_ptr = mp->tx_desc_dma +
+                               tx_next_desc * sizeof(struct eth_tx_desc);
                 }
         }