kobj_machdep() __syncicache() ?

[Jeff Rizzo <riz%tastylime.net@localhost>]

The following allows my macppc g4/400 (with 7400) to successfully 
modload kernel modules without panicing:

Index: arch/powerpc/powerpc/kobj_machdep.c
===================================================================
RCS file: /cvsroot/src/sys/arch/powerpc/powerpc/kobj_machdep.c,v
retrieving revision 1.3
diff -u -r1.3 kobj_machdep.c
--- arch/powerpc/powerpc/kobj_machdep.c    18 Jan 2010 23:35:51 -0000    1.3
+++ arch/powerpc/powerpc/kobj_machdep.c    24 Mar 2011 01:06:48 -0000
@@ -145,6 +145,8 @@
 int
 kobj_machdep(kobj_t ko, void *base, size_t size, bool load)
 {
+    if (load)
+        __syncicache(base, size);

     return 0;
 }


...given that this is a relatively infrequent occurrence, I don't expect 
it to have a particularly adverse effect on other systems. (it seems OK 
on my other macppcs, too) Is this OK to commit?  If not, what should be 
done to make it conditional?

+j