segspt_ops can be static
There is nothing that needs access to this structure outside of the spt
segment driver itself.

@@ -74,11 +74,11 @@
 static int segspt_unmap(struct seg *seg, caddr_t raddr, size_t ssize);
 static void segspt_free(struct seg *seg);
 static void segspt_free_pages(struct seg *seg, caddr_t addr, size_t len);
 static lgrp_mem_policy_info_t *segspt_getpolicy(struct seg *seg, caddr_t addr);
 
-const struct seg_ops segspt_ops = {
+static const struct seg_ops segspt_ops = {
         .unmap          = segspt_unmap,
         .free           = segspt_free,
         .getpolicy      = segspt_getpolicy,
 };