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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-09-14 06:57:52 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-09-14 06:57:52 +0200
commit1622d35453132a1acd6d650175f9f45e4bcf553e (patch)
tree063a2dfa220452590d068418c2b16b90690dae5a /arch/powerpc/include/asm/kasan.h
parent978620cc4f5577c5139da9d8377849aeac46687a (diff)
parent856deb866d16e29bd65952e0289066f6078af773 (diff)
Merge 5.9-rc5 into staging-next
We want the staging/iio changes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/powerpc/include/asm/kasan.h')
-rw-r--r--arch/powerpc/include/asm/kasan.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/kasan.h b/arch/powerpc/include/asm/kasan.h
index d635b96c7ea6..7355ed05e65e 100644
--- a/arch/powerpc/include/asm/kasan.h
+++ b/arch/powerpc/include/asm/kasan.h
@@ -15,11 +15,18 @@
#ifndef __ASSEMBLY__
#include <asm/page.h>
+#include <linux/sizes.h>
#define KASAN_SHADOW_SCALE_SHIFT 3
+#if defined(CONFIG_PPC_BOOK3S_32) && defined(CONFIG_MODULES) && defined(CONFIG_STRICT_KERNEL_RWX)
+#define KASAN_KERN_START ALIGN_DOWN(PAGE_OFFSET - SZ_256M, SZ_256M)
+#else
+#define KASAN_KERN_START PAGE_OFFSET
+#endif
+
#define KASAN_SHADOW_START (KASAN_SHADOW_OFFSET + \
- (PAGE_OFFSET >> KASAN_SHADOW_SCALE_SHIFT))
+ (KASAN_KERN_START >> KASAN_SHADOW_SCALE_SHIFT))
#define KASAN_SHADOW_OFFSET ASM_CONST(CONFIG_KASAN_SHADOW_OFFSET)