igbvf: resolve "frees DMA memory with different size" warnings

This change resolves some warnings seen with DMA debugging enabled in which
we were mapping skb->data with size + NET_IP_ALIGN and unmapping it with
just size.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c
index 2bc9d63027db..926c31b47261 100644
--- a/drivers/net/igbvf/netdev.c
+++ b/drivers/net/igbvf/netdev.c
@@ -149,7 +149,6 @@ static void igbvf_alloc_rx_buffers(struct igbvf_ring *rx_ring,
                 bufsz = adapter->rx_ps_hdr_size;
         else
                 bufsz = adapter->rx_buffer_len;
-        bufsz += NET_IP_ALIGN;
 
         while (cleaned_count--) {
                 rx_desc = IGBVF_RX_DESC_ADV(*rx_ring, i);
@@ -173,7 +172,7 @@ static void igbvf_alloc_rx_buffers(struct igbvf_ring *rx_ring,
                 }
 
                 if (!buffer_info->skb) {
-                        skb = netdev_alloc_skb(netdev, bufsz);
+                        skb = netdev_alloc_skb(netdev, bufsz + NET_IP_ALIGN);
                         if (!skb) {
                                 adapter->alloc_rx_buff_failed++;
                                 goto no_buffers;
@@ -286,7 +285,7 @@ static bool igbvf_clean_rx_irq(struct igbvf_adapter *adapter,
 
                 if (!skb_shinfo(skb)->nr_frags) {
                         pci_unmap_single(pdev, buffer_info->dma,
-                                         adapter->rx_ps_hdr_size + NET_IP_ALIGN,
+                                         adapter->rx_ps_hdr_size,
                                          PCI_DMA_FROMDEVICE);
                         skb_put(skb, hlen);
                 }