Messages in this thread Patch in this message | | | Date | Sat, 25 Dec 2010 18:39:59 +0100 | From | Jarek Poplawski <> | Subject | [PATCH net-2.6 v2] epic100: hamachi: yellowfin: Fix skb allocation size |
| |
Joel Soete reported oopses during pppoe over sundance NIC, caused by a bug in skb allocation and dma mapping code, where skb_reserve() bytes weren't taken into account. As a followup to the patch: "sundance: Fix oopses with corrupted skb_shared_info" very similar code is fixed here for three other drivers.
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Cc: Joel Soete <soete.joel@scarlet.be> Cc: Eric Dumazet <eric.dumazet@gmail.com> --- v2: a tiny changelog fix only
drivers/net/epic100.c | 4 ++-- drivers/net/hamachi.c | 4 ++-- drivers/net/yellowfin.c | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/net/epic100.c b/drivers/net/epic100.c index aa56963..c353bf3 100644 --- a/drivers/net/epic100.c +++ b/drivers/net/epic100.c @@ -935,7 +935,7 @@ static void epic_init_ring(struct net_device *dev) /* Fill in the Rx buffers. Handle allocation failure gracefully. */ for (i = 0; i < RX_RING_SIZE; i++) { - struct sk_buff *skb = dev_alloc_skb(ep->rx_buf_sz); + struct sk_buff *skb = dev_alloc_skb(ep->rx_buf_sz + 2); ep->rx_skbuff[i] = skb; if (skb == NULL) break; @@ -1233,7 +1233,7 @@ static int epic_rx(struct net_device *dev, int budget) entry = ep->dirty_rx % RX_RING_SIZE; if (ep->rx_skbuff[entry] == NULL) { struct sk_buff *skb; - skb = ep->rx_skbuff[entry] = dev_alloc_skb(ep->rx_buf_sz); + skb = ep->rx_skbuff[entry] = dev_alloc_skb(ep->rx_buf_sz + 2); if (skb == NULL) break; skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ diff --git a/drivers/net/hamachi.c b/drivers/net/hamachi.c index 9a64858..80d25ed 100644 --- a/drivers/net/hamachi.c +++ b/drivers/net/hamachi.c @@ -1202,7 +1202,7 @@ static void hamachi_init_ring(struct net_device *dev) } /* Fill in the Rx buffers. Handle allocation failure gracefully. */ for (i = 0; i < RX_RING_SIZE; i++) { - struct sk_buff *skb = dev_alloc_skb(hmp->rx_buf_sz); + struct sk_buff *skb = dev_alloc_skb(hmp->rx_buf_sz + 2); hmp->rx_skbuff[i] = skb; if (skb == NULL) break; @@ -1669,7 +1669,7 @@ static int hamachi_rx(struct net_device *dev) entry = hmp->dirty_rx % RX_RING_SIZE; desc = &(hmp->rx_ring[entry]); if (hmp->rx_skbuff[entry] == NULL) { - struct sk_buff *skb = dev_alloc_skb(hmp->rx_buf_sz); + struct sk_buff *skb = dev_alloc_skb(hmp->rx_buf_sz + 2); hmp->rx_skbuff[entry] = skb; if (skb == NULL) diff --git a/drivers/net/yellowfin.c b/drivers/net/yellowfin.c index cd1b3dc..ec47e22 100644 --- a/drivers/net/yellowfin.c +++ b/drivers/net/yellowfin.c @@ -744,7 +744,7 @@ static int yellowfin_init_ring(struct net_device *dev) } for (i = 0; i < RX_RING_SIZE; i++) { - struct sk_buff *skb = dev_alloc_skb(yp->rx_buf_sz); + struct sk_buff *skb = dev_alloc_skb(yp->rx_buf_sz + 2); yp->rx_skbuff[i] = skb; if (skb == NULL) break; @@ -1157,7 +1157,7 @@ static int yellowfin_rx(struct net_device *dev) for (; yp->cur_rx - yp->dirty_rx > 0; yp->dirty_rx++) { entry = yp->dirty_rx % RX_RING_SIZE; if (yp->rx_skbuff[entry] == NULL) { - struct sk_buff *skb = dev_alloc_skb(yp->rx_buf_sz); + struct sk_buff *skb = dev_alloc_skb(yp->rx_buf_sz + 2); if (skb == NULL) break; /* Better luck next round. */ yp->rx_skbuff[entry] = skb;
| |