x86: use percpu data for 4k hardirq and softirq stacks

[safe/jmp/linux-2.6] / net / core / user_dma.c

diff --git a/net/core/user_dma.c b/net/core/user_dma.c
index 0ad1cd5..164b090 100644 (file)
--- a/net/core/user_dma.c
+++ b/net/core/user_dma.c
@@ -27,13 +27,13 @@
 
 #include <linux/dmaengine.h>
 #include <linux/socket.h>
-#include <linux/rtnetlink.h> /* for BUG_TRAP */
 #include <net/tcp.h>
 #include <net/netdma.h>
 
 #define NET_DMA_DEFAULT_COPYBREAK 4096
 
 int sysctl_tcp_dma_copybreak = NET_DMA_DEFAULT_COPYBREAK;
+EXPORT_SYMBOL(sysctl_tcp_dma_copybreak);
 
 /**
  *     dma_skb_copy_datagram_iovec - Copy a datagram to an iovec.
@@ -71,11 +71,11 @@ int dma_skb_copy_datagram_iovec(struct dma_chan *chan,
        for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
                int end;
 
-               BUG_TRAP(start <= offset + len);
+               WARN_ON(start > offset + len);
 
                end = start + skb_shinfo(skb)->frags[i].size;
                copy = end - offset;
-               if ((copy = end - offset) > 0) {
+               if (copy > 0) {
                        skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
                        struct page *page = frag->page;
 
@@ -100,7 +100,7 @@ int dma_skb_copy_datagram_iovec(struct dma_chan *chan,
                for (; list; list = list->next) {
                        int end;
 
-                       BUG_TRAP(start <= offset + len);
+                       WARN_ON(start > offset + len);
 
                        end = start + list->len;
                        copy = end - offset;