[AF_RXRPC/AFS]: Arch-specific fixes.

Fixes for various arch compilation problems:

 (*) Missing module exports.

 (*) Variable name collision when rxkad and af_rxrpc both built in
     (rxrpc_debug).

 (*) Large constant representation problem (AFS_UUID_TO_UNIX_TIME).

 (*) Configuration dependencies.

 (*) printk() format warnings.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/ia64/lib/csum_partial_copy.c b/arch/ia64/lib/csum_partial_copy.c
index 503dfe6..118daf5 100644
--- a/arch/ia64/lib/csum_partial_copy.c
+++ b/arch/ia64/lib/csum_partial_copy.c
@@ -128,6 +128,8 @@
 	return (__force __wsum)result;
 }
 
+EXPORT_SYMBOL(csum_partial_copy_from_user);
+
 __wsum
 csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
 {