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netfilter: xtables: symmetric COMPAT_XT_ALIGN definition

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Rewrite COMPAT_XT_ALIGN in terms of dummy structure hack.
Compat counters logically have nothing to do with it.
Use ALIGN() macro while I'm at it for same types.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Alexey Dobriyan
2010-02-10 15:03:27 +01:00
committed by Patrick McHardy
parent 0a02604628
commit 42107f5009
2 changed files with 11 additions and 6 deletions
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include/linux/netfilter/x_tables.h
+9 -4
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@@ -93,8 +93,7 @@ struct _xt_align {
__u64 u64;
};
#define XT_ALIGN(s) (((s) + (__alignof__(struct _xt_align)-1)) \
& ~(__alignof__(struct _xt_align)-1))
#define XT_ALIGN(s) ALIGN((s), __alignof__(struct _xt_align))
/* Standard return verdict, or do jump. */
#define XT_STANDARD_TARGET ""
@@ -571,8 +570,14 @@ struct compat_xt_counters_info {
struct compat_xt_counters counters[0];
};
#define COMPAT_XT_ALIGN(s) (((s) + (__alignof__(struct compat_xt_counters)-1)) \
& ~(__alignof__(struct compat_xt_counters)-1))
struct _compat_xt_align {
__u8 u8;
__u16 u16;
__u32 u32;
compat_u64 u64;
};
#define COMPAT_XT_ALIGN(s) ALIGN((s), __alignof__(struct _compat_xt_align))
extern void xt_compat_lock(u_int8_t af);
extern void xt_compat_unlock(u_int8_t af);