[tip: core/mm] ARM: highmem: Fix cache_is_vivt() reference

[tip-bot2 for Arnd Bergmann]

The following commit has been merged into the core/mm branch of tip:

Commit-ID:     68061c02bb295da4955f0d309b9459f0a7ba83dd
Gitweb:        https://git.kernel.org/tip/68061c02bb295da4955f0d309b9459f0a7ba83dd
Author:        Arnd Bergmann <arnd@xxxxxxxx>
AuthorDate:    Fri, 04 Dec 2020 17:59:22 +01:00
Committer:     Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Fri, 04 Dec 2020 23:35:34 +01:00

ARM: highmem: Fix cache_is_vivt() reference

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>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Ira Weiny <ira.weiny@xxxxxxxxx>
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20201204165930.3877571-1-arnd@xxxxxxxxxx

---
 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 a41de52..b4b6622 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)