The patch titled
Spidernet: RX skb mem leak
has been removed from the -mm tree. Its filename was
spidernet-rx-skb-mem-leak.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: Spidernet: RX skb mem leak
From: Linas Vepstas <linas@xxxxxxxxxxxxxx>
One of the unlikely error branches has an skb memory leak. Fix this by
handling the error conditions consistently.
Signed-off-by: Linas Vepstas <linas@xxxxxxxxxxxxxx>
Cc: James K Lewis <jklewis@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/net/spider_net.c | 18 +++++++++---------
1 files changed, 9 insertions(+), 9 deletions(-)
diff -puN drivers/net/spider_net.c~spidernet-rx-skb-mem-leak drivers/net/spider_net.c
--- a/drivers/net/spider_net.c~spidernet-rx-skb-mem-leak
+++ a/drivers/net/spider_net.c
@@ -913,8 +913,8 @@ spider_net_do_ioctl(struct net_device *n
*
* returns 1 on success, 0 if no packet was passed to the stack
*
- * iommu-unmaps the skb, fills out skb structure and passes the data to the
- * stack. The descriptor state is not changed.
+ * Fills out skb structure and passes the data to the stack.
+ * The descriptor state is not changed.
*/
static int
spider_net_pass_skb_up(struct spider_net_descr *descr,
@@ -929,10 +929,6 @@ spider_net_pass_skb_up(struct spider_net
netdev = card->netdev;
- /* unmap descriptor */
- pci_unmap_single(card->pdev, descr->buf_addr, SPIDER_NET_MAX_FRAME,
- PCI_DMA_FROMDEVICE);
-
/* the cases we'll throw away the packet immediately */
if (data_error & SPIDER_NET_DESTROY_RX_FLAGS) {
if (netif_msg_rx_err(card))
@@ -1015,6 +1011,11 @@ spider_net_decode_one_descr(struct spide
chain->tail = descr->next;
result = 0;
+
+ /* unmap descriptor */
+ pci_unmap_single(card->pdev, descr->buf_addr,
+ SPIDER_NET_MAX_FRAME, PCI_DMA_FROMDEVICE);
+
if ( (status == SPIDER_NET_DESCR_RESPONSE_ERROR) ||
(status == SPIDER_NET_DESCR_PROTECTION_ERROR) ||
(status == SPIDER_NET_DESCR_FORCE_END) ) {
@@ -1022,8 +1023,6 @@ spider_net_decode_one_descr(struct spide
pr_err("%s: dropping RX descriptor with state %d\n",
card->netdev->name, status);
card->netdev_stats.rx_dropped++;
- pci_unmap_single(card->pdev, descr->buf_addr,
- SPIDER_NET_MAX_FRAME, PCI_DMA_FROMDEVICE);
dev_kfree_skb_irq(descr->skb);
goto refill;
}
@@ -1031,9 +1030,10 @@ spider_net_decode_one_descr(struct spide
if ( (status != SPIDER_NET_DESCR_COMPLETE) &&
(status != SPIDER_NET_DESCR_FRAME_END) ) {
if (netif_msg_rx_err(card))
- pr_err("%s: RX descriptor with state %d\n",
+ pr_err("%s: RX descriptor with unkown state %d\n",
card->netdev->name, status);
card->spider_stats.rx_desc_unk_state++;
+ dev_kfree_skb_irq(descr->skb);
goto refill;
}
_
Patches currently in -mm which might be from linas@xxxxxxxxxxxxxx are
git-netdev-all.patch
spidernet-rework-rx-linked-list.patch
-
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