ked(pmap_t, vm_offset_t,
 			    vm_offset_t, struct pvo_dlist *);
 
@@ -1284,7 +1284,7 @@ moea64_late_bootstrap(vm_offset_t kernelstart, vm_offset_t kernelend)
 }
 
 static void
-moea64_pmap_init_qpages(void)
+moea64_pmap_init_qpages(void *dummy __unused)
 {
 	struct pcpu *pc;
 	int i;
diff --git a/sys/powerpc/cpufreq/pmcr.c b/sys/powerpc/cpufreq/pmcr.c
index dd489b607606..6ae0777a8ac7 100644
--- a/sys/powerpc/cpufreq/pmcr.c
+++ b/sys/powerpc/cpufreq/pmcr.c
@@ -40,7 +40,8 @@ static int pstate_ids[256];
 static int pstate_freqs[256];
 static int npstates;
 
-static void parse_pstates(void)
+static void
+parse_pstates(void *dummy __unused)
 {
 	phandle_t node;