igb/igbvf: cleanup exception handling in tx_map_adv
After removing the skb_dma_map/unmap calls the exception handling in
igb_tx_map_adv is not correct. The issue is that the count value was not
being correctly handled so as a result we were not rewinding the ring as
back as we should have been.
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>
diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c
index 10e038a..43c8375 100644
--- a/drivers/net/igbvf/netdev.c
+++ b/drivers/net/igbvf/netdev.c
@@ -2126,6 +2126,7 @@
for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) {
struct skb_frag_struct *frag;
+ count++;
i++;
if (i == tx_ring->count)
i = 0;
@@ -2146,7 +2147,6 @@
PCI_DMA_TODEVICE);
if (pci_dma_mapping_error(pdev, buffer_info->dma))
goto dma_error;
- count++;
}
tx_ring->buffer_info[i].skb = skb;