kernel errata

For 31-bit s390, the latest kernel in s390.rpm form is 2.4.9-38, yet for 
7.2 release there is this errata:

hwcrypto-1.0-3.src.rpm
iptables-1.2.5-3.src.rpm
kernel-2.4.18-17.7.x.src.rpm
kernel-2.4.9-40.src.rpm
kernel-utils-2.4-8.13.7.2.src.rpm
MAKEDEV-3.3-4.src.rpm
modutils-2.4.18-3.7x.src.rpm

Is there any reason not to go to 2.4.18-17.7x for s390 architecture?
Are the other srpm's more i386 specific?  I couldn't tell from the 
details at http://rhn.redhat.com/errata/RHSA-2002-205.html, but there's 
the comment:
"IMPORTANT: For alpha and ia64 architectures, kernel version 2.4.9-40 is 
provided instead of 2.4.18. This errata kernel contains important 
backported security fixes."

Thanks,
~ Daniel