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authorHerbert Xu <herbert@gondor.apana.org.au>2005-11-10 13:01:24 -0800
committerDavid S. Miller <davem@davemloft.net>2005-11-10 13:01:24 -0800
commitfb286bb2990a107009dbf25f6ffebeb7df77f9be (patch)
tree0eede2c37f1b3831e59601933eebf6b82be75ffc /net/sunrpc/socklib.c
parent1064e944d03eb7a72c0fa11236d5e69cfd877a71 (diff)
downloadlinux-fb286bb2990a107009dbf25f6ffebeb7df77f9be.tar.gz
[NET]: Detect hardware rx checksum faults correctly
Here is the patch that introduces the generic skb_checksum_complete which also checks for hardware RX checksum faults. If that happens, it'll call netdev_rx_csum_fault which currently prints out a stack trace with the device name. In future it can turn off RX checksum. I've converted every spot under net/ that does RX checksum checks to use skb_checksum_complete or __skb_checksum_complete with the exceptions of: * Those places where checksums are done bit by bit. These will call netdev_rx_csum_fault directly. * The following have not been completely checked/converted: ipmr ip_vs netfilter dccp This patch is based on patches and suggestions from Stephen Hemminger and David S. Miller. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sunrpc/socklib.c')
-rw-r--r--net/sunrpc/socklib.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/sunrpc/socklib.c b/net/sunrpc/socklib.c
index 8f97e90f36c..eb330d4f66d 100644
--- a/net/sunrpc/socklib.c
+++ b/net/sunrpc/socklib.c
@@ -6,6 +6,9 @@
* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
*/
+#include <linux/compiler.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
#include <linux/types.h>
#include <linux/pagemap.h>
#include <linux/udp.h>
@@ -165,6 +168,8 @@ int csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
return -1;
if ((unsigned short)csum_fold(desc.csum))
return -1;
+ if (unlikely(skb->ip_summed == CHECKSUM_HW))
+ netdev_rx_csum_fault(skb->dev);
return 0;
no_checksum:
if (xdr_partial_copy_from_skb(xdr, 0, &desc, skb_read_bits) < 0)