--- zzzz-none-000/linux-3.10.107/arch/microblaze/kernel/cpu/cache.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/microblaze/kernel/cpu/cache.c	2021-02-04 17:41:59.000000000 +0000
@@ -140,10 +140,10 @@
 /* It is used only first parameter for OP - for wic, wdc */
 #define CACHE_RANGE_LOOP_1(start, end, line_length, op)			\
 do {									\
-	int volatile temp = 0;						\
-	int align = ~(line_length - 1);					\
+	unsigned int volatile temp = 0;						\
+	unsigned int align = ~(line_length - 1);					\
 	end = ((end & align) == end) ? end - line_length : end & align;	\
-	WARN_ON(end - start < 0);					\
+	WARN_ON(end < start);					\
 									\
 	__asm__ __volatile__ (" 1:	" #op "	%1, r0;"		\
 					"cmpu	%0, %1, %2;"		\