diff --git a/arch/frv/include/asm/segment.h b/arch/frv/include/asm/segment.h
index 4377c89a57f5..2305142d4cf8 100644
--- a/arch/frv/include/asm/segment.h
+++ b/arch/frv/include/asm/segment.h
@@ -32,7 +32,6 @@ typedef struct {
 #define get_ds()		(KERNEL_DS)
 #define get_fs()		(__current_thread_info->addr_limit)
 #define segment_eq(a, b)	((a).seg == (b).seg)
-#define __kernel_ds_p()		segment_eq(get_fs(), KERNEL_DS)
 #define get_addr_limit()	(get_fs().seg)
 
 #define set_fs(_x)					\
diff --git a/arch/mn10300/include/asm/uaccess.h b/arch/mn10300/include/asm/uaccess.h
index bd285e5fd93a..2eedf6f46a57 100644
--- a/arch/mn10300/include/asm/uaccess.h
+++ b/arch/mn10300/include/asm/uaccess.h
@@ -38,7 +38,6 @@
 #define get_ds()	(KERNEL_DS)
 #define get_fs()	(current_thread_info()->addr_limit)
 #define set_fs(x)	(current_thread_info()->addr_limit = (x))
-#define __kernel_ds_p() (current_thread_info()->addr_limit.seg == 0x9FFFFFFF)
 
 #define segment_eq(a, b) ((a).seg == (b).seg)