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authorHerbert Xu <herbert@gondor.apana.org.au>2007-11-14 08:34:06 +0300
committerDavid S. Miller <davem@davemloft.net>2008-01-29 01:53:37 +0300
commit352e512c32b634768303a43768245a0363cebbe7 (patch)
tree97509ac130ecbe2084808271ccc459918a9d5fc1 /net/core
parentb4ce92775c2e7ff9cf79cca4e0a19c8c5fd6287b (diff)
downloadlinux-352e512c32b634768303a43768245a0363cebbe7.tar.xz
[NET]: Eliminate duplicate copies of dst_discard
We have a number of copies of dst_discard scattered around the place which all do the same thing, namely free a packet on the input or output paths. This patch deletes all of them except dst_discard and points all the users to it. The only non-trivial bit is decnet where it returns an error. However, conceptually this is identical to the blackhole functions used in IPv4 and IPv6 which do not return errors. So they should either all return errors or all return zero. For now I've stuck with the majority and picked zero as the return value. It doesn't really matter in practice since few if any driver would react differently depending on a zero return value or NET_RX_DROP. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/dst.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/core/dst.c b/net/core/dst.c
index 03daead3592a..f538061f4b93 100644
--- a/net/core/dst.c
+++ b/net/core/dst.c
@@ -153,11 +153,12 @@ loop:
#endif
}
-static int dst_discard(struct sk_buff *skb)
+int dst_discard(struct sk_buff *skb)
{
kfree_skb(skb);
return 0;
}
+EXPORT_SYMBOL(dst_discard);
void * dst_alloc(struct dst_ops * ops)
{