[PATCH] ARM: highmem: fix cache_is_vivt() reference

[Arnd Bergmann]

From: Arnd Bergmann <arnd@xxxxxxxx>

The reference to cache_is_vivt() was moved into a header file,
which now causes a build failure in rare randconfig builds:

arch/arm/include/asm/highmem.h:52:43: error: implicit declaration of function 'cache_is_vivt' [-Werror,-Wimplicit-function-declaration]

Add an explicit include to make it build reliably.

Fixes: 2a15ba82fa6c ("ARM: highmem: Switch to generic kmap atomic")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
 arch/arm/include/asm/highmem.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/include/asm/highmem.h b/arch/arm/include/asm/highmem.h
index a41de523d053..b4b66220952d 100644
--- a/arch/arm/include/asm/highmem.h
+++ b/arch/arm/include/asm/highmem.h
@@ -2,6 +2,7 @@
 #ifndef _ASM_HIGHMEM_H
 #define _ASM_HIGHMEM_H
 
+#include <asm/cachetype.h>
 #include <asm/fixmap.h>
 
 #define PKMAP_BASE		(PAGE_OFFSET - PMD_SIZE)
-- 
2.27.0