diff options
| author | Joerg Willmann <joe@clnt.de> | 2012-02-21 13:26:14 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2012-02-21 13:29:06 +0100 |
| commit | 88ba136d6635b262f77cc418d536115fb8e4d4ab (patch) | |
| tree | 06d47a761e51c3f8c7546ea91be4b291a482d493 /include | |
| parent | a8db7b2d197a0d624baab83f0c810b0edbc4ffd0 (diff) | |
| download | linux-88ba136d6635b262f77cc418d536115fb8e4d4ab.tar.gz | |
netfilter: ebtables: fix alignment problem in ppc
ebt_among extension of ebtables uses __alignof__(_xt_align) while the corresponding kernel module uses __alignof__(ebt_replace) to determine the alignment in EBT_ALIGN(). These are the results of these values on different platforms: x86 x86_64 ppc __alignof__(_xt_align) 4 8 8 __alignof__(ebt_replace) 4 8 4 ebtables fails to add rules which use the among extension. I'm using kernel 2.6.33 and ebtables 2.0.10-4 According to Bart De Schuymer, userspace alignment was changed to _xt_align to fix an alignment issue on a userspace32-kernel64 system (he thinks it was for an ARM device). So userspace must be right. The kernel alignment macro needs to change so it also uses _xt_align instead of ebt_replace. The userspace changes date back from June 29, 2009. Signed-off-by: Joerg Willmann <joe@clnt.de> Signed-off by: Bart De Schuymer <bdschuym@pandora.be> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netfilter_bridge/ebtables.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/netfilter_bridge/ebtables.h b/include/linux/netfilter_bridge/ebtables.h index 8797ed16feb2..4dd5bd6994a8 100644 --- a/include/linux/netfilter_bridge/ebtables.h +++ b/include/linux/netfilter_bridge/ebtables.h @@ -285,8 +285,8 @@ struct ebt_table { struct module *me; }; -#define EBT_ALIGN(s) (((s) + (__alignof__(struct ebt_replace)-1)) & \ - ~(__alignof__(struct ebt_replace)-1)) +#define EBT_ALIGN(s) (((s) + (__alignof__(struct _xt_align)-1)) & \ + ~(__alignof__(struct _xt_align)-1)) extern struct ebt_table *ebt_register_table(struct net *net, const struct ebt_table *table); extern void ebt_unregister_table(struct net *net, struct ebt_table *table); |