The patch titled
Subject: kfence: fix implicit function declaration
has been added to the -mm tree. Its filename is
set_memory-allow-querying-whether-set_direct_map_-is-actually-enabled-fix.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/set_memory-allow-querying-whether-set_direct_map_-is-actually-enabled-fix.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/set_memory-allow-querying-whether-set_direct_map_-is-actually-enabled-fix.patch
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------------------------------------------------------
From: Anders Roxell <anders.roxell@xxxxxxxxxx>
Subject: kfence: fix implicit function declaration
When building kfence the following error shows up:
In file included from mm/kfence/report.c:13:
arch/arm64/include/asm/kfence.h: In function `kfence_protect_page':
arch/arm64/include/asm/kfence.h:12:2: error: implicit declaration of function `set_memory_valid' [-Werror=implicit-function-declaration]
12 | set_memory_valid(addr, 1, !protect);
| ^~~~~~~~~~~~~~~~
Use the correct include both
f2b7c491916d ("set_memory: allow querying whether set_direct_map_*() is actually enabled")
and 4c4c75881536 ("arm64, kfence: enable KFENCE for ARM64") went in the
same day via different trees.
Link: https://lkml.kernel.org/r/20201204121804.1532849-1-anders.roxell@xxxxxxxxxx
Signed-off-by: Anders Roxell <anders.roxell@xxxxxxxxxx>
Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Marco Elver <elver@xxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/arm64/include/asm/kfence.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm64/include/asm/kfence.h~set_memory-allow-querying-whether-set_direct_map_-is-actually-enabled-fix
+++ a/arch/arm64/include/asm/kfence.h
@@ -3,7 +3,7 @@
#ifndef __ASM_KFENCE_H
#define __ASM_KFENCE_H
-#include <asm/cacheflush.h>
+#include <asm/set_memory.h>
static inline bool arch_kfence_init_pool(void) { return true; }
_
Patches currently in -mm which might be from anders.roxell@xxxxxxxxxx are
set_memory-allow-querying-whether-set_direct_map_-is-actually-enabled-fix.patch
