Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net
authorDavid S. Miller <davem@davemloft.net>
Wed, 27 Mar 2013 18:07:55 +0000 (14:07 -0400)
committerDavid S. Miller <davem@davemloft.net>
Wed, 27 Mar 2013 18:07:55 +0000 (14:07 -0400)
Jeff Kirsher says:

====================
This series contains updates to e1000, ixgb and e1000e for Christoph.

Christoph provides 3 patches to resolve missing dma_error_call's to
provided Intel drivers which did not have this fix.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/intel/e1000/e1000_ethtool.c
drivers/net/ethernet/intel/e1000e/netdev.c
drivers/net/ethernet/intel/ixgb/ixgb_main.c

index 43462d5..ffd2871 100644 (file)
@@ -1053,6 +1053,10 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
                txdr->buffer_info[i].dma =
                        dma_map_single(&pdev->dev, skb->data, skb->len,
                                       DMA_TO_DEVICE);
+               if (dma_mapping_error(&pdev->dev, txdr->buffer_info[i].dma)) {
+                       ret_val = 4;
+                       goto err_nomem;
+               }
                tx_desc->buffer_addr = cpu_to_le64(txdr->buffer_info[i].dma);
                tx_desc->lower.data = cpu_to_le32(skb->len);
                tx_desc->lower.data |= cpu_to_le32(E1000_TXD_CMD_EOP |
@@ -1069,7 +1073,7 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
        rxdr->buffer_info = kcalloc(rxdr->count, sizeof(struct e1000_buffer),
                                    GFP_KERNEL);
        if (!rxdr->buffer_info) {
-               ret_val = 4;
+               ret_val = 5;
                goto err_nomem;
        }
 
@@ -1077,7 +1081,7 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
        rxdr->desc = dma_alloc_coherent(&pdev->dev, rxdr->size, &rxdr->dma,
                                        GFP_KERNEL);
        if (!rxdr->desc) {
-               ret_val = 5;
+               ret_val = 6;
                goto err_nomem;
        }
        memset(rxdr->desc, 0, rxdr->size);
@@ -1101,7 +1105,7 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
 
                skb = alloc_skb(E1000_RXBUFFER_2048 + NET_IP_ALIGN, GFP_KERNEL);
                if (!skb) {
-                       ret_val = 6;
+                       ret_val = 7;
                        goto err_nomem;
                }
                skb_reserve(skb, NET_IP_ALIGN);
@@ -1110,6 +1114,10 @@ static int e1000_setup_desc_rings(struct e1000_adapter *adapter)
                rxdr->buffer_info[i].dma =
                        dma_map_single(&pdev->dev, skb->data,
                                       E1000_RXBUFFER_2048, DMA_FROM_DEVICE);
+               if (dma_mapping_error(&pdev->dev, rxdr->buffer_info[i].dma)) {
+                       ret_val = 8;
+                       goto err_nomem;
+               }
                rx_desc->buffer_addr = cpu_to_le64(rxdr->buffer_info[i].dma);
                memset(skb->data, 0x00, skb->len);
        }
index 948b86f..7e615e2 100644 (file)
@@ -848,11 +848,16 @@ check_page:
                        }
                }
 
-               if (!buffer_info->dma)
+               if (!buffer_info->dma) {
                        buffer_info->dma = dma_map_page(&pdev->dev,
                                                        buffer_info->page, 0,
                                                        PAGE_SIZE,
                                                        DMA_FROM_DEVICE);
+                       if (dma_mapping_error(&pdev->dev, buffer_info->dma)) {
+                               adapter->alloc_rx_buff_failed++;
+                               break;
+                       }
+               }
 
                rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
                rx_desc->read.buffer_addr = cpu_to_le64(buffer_info->dma);
index ea48083..b5f94ab 100644 (file)
@@ -2159,6 +2159,10 @@ map_skb:
                                                  skb->data,
                                                  adapter->rx_buffer_len,
                                                  DMA_FROM_DEVICE);
+               if (dma_mapping_error(&pdev->dev, buffer_info->dma)) {
+                       adapter->alloc_rx_buff_failed++;
+                       break;
+               }
 
                rx_desc = IXGB_RX_DESC(*rx_ring, i);
                rx_desc->buff_addr = cpu_to_le64(buffer_info->dma);
@@ -2168,7 +2172,8 @@ map_skb:
                rx_desc->status = 0;
 
 
-               if (++i == rx_ring->count) i = 0;
+               if (++i == rx_ring->count)
+                       i = 0;
                buffer_info = &rx_ring->buffer_info[i];
        }