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| author | Philip Craig <philipc@snapgear.com> | 2008-04-29 03:35:10 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-04-29 03:35:10 -0700 |
| commit | 443a70d50bdc212e1292778e264ce3d0a85b896f (patch) | |
| tree | 6b00ca5759949a4c11f77b683d9f65cae82a68e3 /include/net | |
| parent | 0010e46577a27c1d915034637f6c2fa57a9a091c (diff) | |
| download | lwn-443a70d50bdc212e1292778e264ce3d0a85b896f.tar.gz lwn-443a70d50bdc212e1292778e264ce3d0a85b896f.zip | |
netfilter: nf_conntrack: padding breaks conntrack hash on ARM
commit 0794935e "[NETFILTER]: nf_conntrack: optimize hash_conntrack()"
results in ARM platforms hashing uninitialised padding. This padding
doesn't exist on other architectures.
Fix this by replacing NF_CT_TUPLE_U_BLANK() with memset() to ensure
everything is initialised. There were only 4 bytes that
NF_CT_TUPLE_U_BLANK() wasn't clearing anyway (or 12 bytes on ARM).
Signed-off-by: Philip Craig <philipc@snapgear.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/netfilter/nf_conntrack_tuple.h | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/include/net/netfilter/nf_conntrack_tuple.h b/include/net/netfilter/nf_conntrack_tuple.h index 1bb7087833d3..a6874ba22d54 100644 --- a/include/net/netfilter/nf_conntrack_tuple.h +++ b/include/net/netfilter/nf_conntrack_tuple.h @@ -107,16 +107,6 @@ struct nf_conntrack_tuple_mask } src; }; -/* This is optimized opposed to a memset of the whole structure. Everything we - * really care about is the source/destination unions */ -#define NF_CT_TUPLE_U_BLANK(tuple) \ - do { \ - (tuple)->src.u.all = 0; \ - (tuple)->dst.u.all = 0; \ - memset(&(tuple)->src.u3, 0, sizeof((tuple)->src.u3)); \ - memset(&(tuple)->dst.u3, 0, sizeof((tuple)->dst.u3)); \ - } while (0) - #ifdef __KERNEL__ static inline void nf_ct_dump_tuple_ip(const struct nf_conntrack_tuple *t) |