* [PATCH NFSIM]: Define ____cacheline_aligned
@ 2005-01-06 14:15 Patrick McHardy
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From: Patrick McHardy @ 2005-01-06 14:15 UTC (permalink / raw)
To: Rusty Russell; +Cc: Netfilter Development Mailinglist
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____cacheline_aligned is currently undefined, this makes this check in
ip_tables.c check_entry_size_and_hooks() fail on 64 bit because
newinfo->entries and thus e is only 4-byte aligned:
if ((unsigned long)e % __alignof__(struct ipt_entry) != 0
|| (unsigned char *)e + sizeof(struct ipt_entry) >= limit) {
duprintf("Bad offset %p\n", e);
return -EINVAL;
}
This patch makes it align to 8 byte.
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Index: kernelenv/include/kernelenv.h
===================================================================
--- kernelenv/include/kernelenv.h (revision 3578)
+++ kernelenv/include/kernelenv.h (working copy)
@@ -103,7 +103,7 @@
#define __init
#define __inline
-#define ____cacheline_aligned
+#define ____cacheline_aligned __attribute__((aligned(8)))
#include <talloc.h>
extern void *__vmalloc_ctx;
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2005-01-06 14:15 [PATCH NFSIM]: Define ____cacheline_aligned Patrick McHardy
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