diff --git a/lib/libstand/cd9660.c b/lib/libstand/cd9660.c
index 1c43e7564b60..449480b5531e 100644
--- a/lib/libstand/cd9660.c
+++ b/lib/libstand/cd9660.c
@@ -118,21 +118,6 @@ struct ptable_ent {
 
 #define	cdb2devb(bno)	((bno) * ISO_DEFAULT_BLOCK_SIZE / DEV_BSIZE)
 
-/* XXX these should be in the system headers */
-static __inline int
-isonum_722(p)
-	u_char *p;
-{
-	return (*p << 8)|p[1];
-}
-
-static __inline int
-isonum_732(p)
-	u_char *p;
-{
-	return (*p << 24)|(p[1] << 16)|(p[2] << 8)|p[3];
-}
-
 static ISO_SUSP_HEADER *
 susp_lookup_record(struct open_file *f, const char *identifier,
     struct iso_directory_record *dp, int lenskip)
diff --git a/sys/fs/cd9660/iso.h b/sys/fs/cd9660/iso.h
index 8645f58ec021..085134141b1d 100644
--- a/sys/fs/cd9660/iso.h
+++ b/sys/fs/cd9660/iso.h
@@ -277,79 +277,65 @@ u_short sgetrune(const char *, size_t, char const **, int, void *);
  * outside the kernel.  Thus we don't hide them here.
  */
 
-static __inline int isonum_711(u_char *);
-static __inline int
-isonum_711(p)
-	u_char *p;
+/*
+ * 7xy
+ *  x -> 1 = 8 bits, 2 = 16 bits, 3 = 32 bits
+ *   y -> 1 = little-endian, 2 = big-endian, 3 = both (le then be)
+ */
+
+static __inline uint8_t
+isonum_711(unsigned char *p)
 {
-	return *p;
+	return p[0];
 }
 
-static __inline int isonum_712(char *);
-static __inline int
-isonum_712(p)
-	char *p;
+static __inline uint8_t
+isonum_712(unsigned char *p)
 {
-	return *p;
+	return p[0];
 }
 
-#ifndef UNALIGNED_ACCESS
-
-static __inline int isonum_723(u_char *);
-static __inline int
-isonum_723(p)
-	u_char *p;
+static __inline uint8_t
+isonum_713(unsigned char *p)
 {
-	return *p|(p[1] << 8);
+	return p[0];
 }
 
-static __inline int isonum_733(u_char *);
-static __inline int
-isonum_733(p)
-	u_char *p;
+static __inline uint16_t
+isonum_721(unsigned char *p)
 {
-	return *p|(p[1] << 8)|(p[2] << 16)|(p[3] << 24);
+	return (p[0] | p[1] << 8);
 }
 
-#else /* UNALIGNED_ACCESS */
-
-#if BYTE_ORDER == LITTLE_ENDIAN
-
-static __inline int
-isonum_723(p)
-	u_char *p
+static __inline uint16_t
+isonum_722(unsigned char *p)
 {
-	return *(u_int16t *)p;
+	return (p[1] | p[0] << 8);
 }
 
-static __inline int
-isonum_733(p)
-	u_char *p;
+static __inline uint16_t
+isonum_723(unsigned char *p)
 {
-	return *(u_int32t *)p;
+	return (p[0] | p[1] << 8);
 }
 
-#endif
-
-#if BYTE_ORDER == BIG_ENDIAN
-
-static __inline int
-isonum_723(p)
-	u_char *p
+static __inline uint32_t
+isonum_731(unsigned char *p)
 {
-	return *(u_int16t *)(p + 2);
+	return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24);
 }
 
-static __inline int
-isonum_733(p)
-	u_char *p;
+static __inline uint32_t
+isonum_732(unsigned char *p)
 {
-	return *(u_int32t *)(p + 4);
+	return (p[3] | p[2] << 8 | p[1] << 16 | p[0] << 24);
 }
 
-#endif
-
-#endif /* UNALIGNED_ACCESS */
+static __inline uint32_t
+isonum_733(unsigned char *p)
+{
+	return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24);
+}
 
 /*
  * Associated files have a leading '='.
diff --git a/sys/isofs/cd9660/iso.h b/sys/isofs/cd9660/iso.h
index 8645f58ec021..085134141b1d 100644
--- a/sys/isofs/cd9660/iso.h
+++ b/sys/isofs/cd9660/iso.h
@@ -277,79 +277,65 @@ u_short sgetrune(const char *, size_t, char const **, int, void *);
  * outside the kernel.  Thus we don't hide them here.
  */
 
-static __inline int isonum_711(u_char *);
-static __inline int
-isonum_711(p)
-	u_char *p;
+/*
+ * 7xy
+ *  x -> 1 = 8 bits, 2 = 16 bits, 3 = 32 bits
+ *   y -> 1 = little-endian, 2 = big-endian, 3 = both (le then be)
+ */
+
+static __inline uint8_t
+isonum_711(unsigned char *p)
 {
-	return *p;
+	return p[0];
 }
 
-static __inline int isonum_712(char *);
-static __inline int
-isonum_712(p)
-	char *p;
+static __inline uint8_t
+isonum_712(unsigned char *p)
 {
-	return *p;
+	return p[0];
 }
 
-#ifndef UNALIGNED_ACCESS
-
-static __inline int isonum_723(u_char *);
-static __inline int
-isonum_723(p)
-	u_char *p;
+static __inline uint8_t
+isonum_713(unsigned char *p)
 {
-	return *p|(p[1] << 8);
+	return p[0];
 }
 
-static __inline int isonum_733(u_char *);
-static __inline int
-isonum_733(p)
-	u_char *p;
+static __inline uint16_t
+isonum_721(unsigned char *p)
 {
-	return *p|(p[1] << 8)|(p[2] << 16)|(p[3] << 24);
+	return (p[0] | p[1] << 8);
 }
 
-#else /* UNALIGNED_ACCESS */
-
-#if BYTE_ORDER == LITTLE_ENDIAN
-
-static __inline int
-isonum_723(p)
-	u_char *p
+static __inline uint16_t
+isonum_722(unsigned char *p)
 {
-	return *(u_int16t *)p;
+	return (p[1] | p[0] << 8);
 }
 
-static __inline int
-isonum_733(p)
-	u_char *p;
+static __inline uint16_t
+isonum_723(unsigned char *p)
 {
-	return *(u_int32t *)p;
+	return (p[0] | p[1] << 8);
 }
 
-#endif
-
-#if BYTE_ORDER == BIG_ENDIAN
-
-static __inline int
-isonum_723(p)
-	u_char *p
+static __inline uint32_t
+isonum_731(unsigned char *p)
 {
-	return *(u_int16t *)(p + 2);
+	return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24);
 }
 
-static __inline int
-isonum_733(p)
-	u_char *p;
+static __inline uint32_t
+isonum_732(unsigned char *p)
 {
-	return *(u_int32t *)(p + 4);
+	return (p[3] | p[2] << 8 | p[1] << 16 | p[0] << 24);
 }
 
-#endif
-
-#endif /* UNALIGNED_ACCESS */
+static __inline uint32_t
+isonum_733(unsigned char *p)
+{
+	return (p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24);
+}
 
 /*
  * Associated files have a leading '='.