arm: rename flush_cache_user_range to flush_icache_user_range

flush_icache_user_range will be the name for a generic primitive.  Move
the arm name so that arm already has an implementation.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Cc: Russell King <linux@armlinux.org.uk>
Link: http://lkml.kernel.org/r/20200515143646.3857579-24-hch@lst.deSigned-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

arch/arm/include/asm/cacheflush.h

@@ -258,11 +258,11 @@ extern void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr
 #define flush_cache_dup_mm(mm) flush_cache_mm(mm)
 
 /*
- * flush_cache_user_range is used when we want to ensure that the
+ * flush_icache_user_range is used when we want to ensure that the
  * Harvard caches are synchronised for the user space address range.
  * This is used for the ARM private sys_cacheflush system call.
  */
-#define flush_cache_user_range(s,e)	__cpuc_coherent_user_range(s,e)
+#define flush_icache_user_range(s,e)	__cpuc_coherent_user_range(s,e)
 
 /*
  * Perform necessary cache operations to ensure that data previously

arch/arm/kernel/traps.c

@@ -566,7 +566,7 @@ __do_cache_op(unsigned long start, unsigned long end)
 		if (fatal_signal_pending(current))
 			return 0;
 
-		ret = flush_cache_user_range(start, start + chunk);
+		ret = flush_icache_user_range(start, start + chunk);
 		if (ret)
 			return ret;