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authorflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2012-11-16 16:32:55 +0000
committerflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2012-11-16 16:32:55 +0000
commit763c067152ac8f8acc6a4920bd335254435feb2b (patch)
tree2e0e2146effb547c681faed71e1cd042af250d90 /target/linux/leon/patches/021-greth_fix_memory_leak.patch
parent8642151a3411335fe43e3b93ad1c867c1ed7b6d7 (diff)
[leon] move patches to patches-2.6.36
Signed-off-by: Florian Fainelli <florian@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34220 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/leon/patches/021-greth_fix_memory_leak.patch')
-rw-r--r--target/linux/leon/patches/021-greth_fix_memory_leak.patch49
1 files changed, 0 insertions, 49 deletions
diff --git a/target/linux/leon/patches/021-greth_fix_memory_leak.patch b/target/linux/leon/patches/021-greth_fix_memory_leak.patch
deleted file mode 100644
index 1d05af124..000000000
--- a/target/linux/leon/patches/021-greth_fix_memory_leak.patch
+++ /dev/null
@@ -1,49 +0,0 @@
-From 54789a03adf9c924d0cf7b890323c9c1ca7ab042 Mon Sep 17 00:00:00 2001
-From: Daniel Hellstrom <daniel@gaisler.com>
-Date: Wed, 1 Dec 2010 10:26:09 +0100
-Subject: [PATCH] GRETH: fixed skb buffer memory leak on frame errors
-
-A new SKB buffer should not be allocated when the old SKB is reused.
-
-Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
----
- drivers/net/greth.c | 17 +++++++++++------
- 1 files changed, 11 insertions(+), 6 deletions(-)
-
---- a/drivers/net/greth.c
-+++ b/drivers/net/greth.c
-@@ -879,10 +879,8 @@ static int greth_rx_gbit(struct net_devi
- }
- }
-
-- /* Allocate new skb to replace current */
-- newskb = netdev_alloc_skb(dev, MAX_FRAME_SIZE + NET_IP_ALIGN);
--
-- if (!bad && newskb) {
-+ /* Allocate new skb to replace current, not needed if the current skb can be reused */
-+ if (!bad && (newskb=netdev_alloc_skb(dev, MAX_FRAME_SIZE + NET_IP_ALIGN))) {
- skb_reserve(newskb, NET_IP_ALIGN);
-
- dma_addr = dma_map_single(greth->dev,
-@@ -919,12 +917,19 @@ static int greth_rx_gbit(struct net_devi
- if (net_ratelimit())
- dev_warn(greth->dev, "Could not create DMA mapping, dropping packet\n");
- dev_kfree_skb(newskb);
-- dev->stats.rx_dropped++;
-+ dev->stats.rx_dropped++; /* reusing current skb, so it is a drop */
- }
-+ } else if ( bad ) {
-+ /* Bad Frame transfer, the skb is reused */
-+ dev->stats.rx_dropped++;
- } else {
-+ /* Failed Allocating a new skb. This is rather stupid but the current "filled"
-+ * skb is reused, as if transfer failure. One could argue that RX descriptor table
-+ * handling should be divided into cleaning and filling as the TX part of the driver
-+ */
- if (net_ratelimit())
- dev_warn(greth->dev, "Could not allocate SKB, dropping packet\n");
-- dev->stats.rx_dropped++;
-+ dev->stats.rx_dropped++; /* reusing current skb, so it is a drop */
- }
-
- status = GRETH_BD_EN | GRETH_BD_IE;