2.5.46-bk minor fix

The current 2.5.46-bk failes to build for me. Ends up with:

gcc -Wp,-MD,net/ipv4/netfilter/.ipt_TCPMSS.o.d -D__KERNEL__ -Iinclude -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -pipe -mpreferred-stack-boundary=2 -march=athlon -Iarch/i386/mach-generic -nostdinc -iwithprefix include -DMODULE -DKBUILD_BASENAME=ipt_TCPMSS -c -o net/ipv4/netfilter/ipt_TCPMSS.o net/ipv4/netfilter/ipt_TCPMSS.c
net/ipv4/netfilter/ipt_TCPMSS.c: In function `ipt_tcpmss_target':
net/ipv4/netfilter/ipt_TCPMSS.c:95: structure has no member named
`pmtu'
make[4]: *** [net/ipv4/netfilter/ipt_TCPMSS.o] Error 1 make[3]: *** [net/ipv4/netfilter] Error 2
make[2]: *** [net/ipv4] Error 2
make[1]: *** [net] Error 2
make: *** [modules] Error 2

The following patch seemingly fixes it, but I don't know if it's correct:

===== net/ipv4/netfilter/ipt_TCPMSS.c 1.6 vs ? (writable without lock!) =====

@@ -92,7 +92,7 @@
 			return NF_DROP; /* or IPT_CONTINUE ?? */
 		}
 
-		newmss = dst_pmtu((*pskb)->dst->pmtu) - sizeof(struct iphdr) - sizeof(struct tcphdr);
+		newmss = dst_pmtu((*pskb)->dst) - sizeof(struct iphdr) - sizeof(struct tcphdr);
 	} else
 		newmss = tcpmssinfo->mss;
 

-jf