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Subject[PATCH] IPv6 can't be built as module additionally
Hi,

It is not possible to build ipv6 for already compiled and running kernel,
recompilation of whole kernel, even if building as a module, is typically
a must. This is because ipv6-specific functions in drivers/char/random.c
are inside #ifdefs, and as random.c is almost always built directly into
kernel, recompilation of whole kernel can't be avoided. The corresponding
functions for IPv4 in random.c are not inside those ifdefs, and I think
that IPv6 shouldn't be either. Recompiling whole kernel just because I
want to build ipv6 module is quite annoying. The following patch removes
those ifdefs and makes additional compilation of ipv6 module possible.

--- drivers/char/random.c.old Mon May 10 04:32:00 2004
+++ drivers/char/random.c Thu May 20 23:58:27 2004
@@ -2146,8 +2146,6 @@
/* Alternative: return sum of all words? */
}

-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-
static __u32 twothirdsMD4Transform (__u32 const buf[4], __u32 const in[12])
{
__u32 a = buf[0], b = buf[1], c = buf[2], d = buf[3];
@@ -2197,7 +2195,6 @@
return buf[1] + b; /* "most hashed" word */
/* Alternative: return sum of all words? */
}
-#endif

#undef ROUND
#undef F
@@ -2271,7 +2268,6 @@
return keyptr;
}

-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
__u32 secure_tcpv6_sequence_number(__u32 *saddr, __u32 *daddr,
__u16 sport, __u16 dport)
{
@@ -2309,7 +2305,6 @@
}

EXPORT_SYMBOL(secure_ipv6_id);
-#endif


__u32 secure_tcp_sequence_number(__u32 saddr, __u32 daddr,
--
JiKos.
-
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