summaryrefslogtreecommitdiff
path: root/lib/test_kasan.c
diff options
context:
space:
mode:
authorAndrey Konovalov <andreyknvl@google.com>2020-12-22 23:00:24 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-22 23:55:06 +0300
commit1f600626b3a9b77001b3ef90a79bf68c9f7e4cda (patch)
treeed3e56b8b1dab6dffe3bdf4258fcbb2b6f140595 /lib/test_kasan.c
parentcebd0eb29acdfc2f5e44e5f356ffcd0c44f16b4a (diff)
downloadlinux-1f600626b3a9b77001b3ef90a79bf68c9f7e4cda.tar.xz
kasan: rename KASAN_SHADOW_* to KASAN_GRANULE_*
This is a preparatory commit for the upcoming addition of a new hardware tag-based (MTE-based) KASAN mode. The new mode won't be using shadow memory, but will still use the concept of memory granules. Each memory granule maps to a single metadata entry: 8 bytes per one shadow byte for generic mode, 16 bytes per one shadow byte for software tag-based mode, and 16 bytes per one allocation tag for hardware tag-based mode. Rename KASAN_SHADOW_SCALE_SIZE to KASAN_GRANULE_SIZE, and KASAN_SHADOW_MASK to KASAN_GRANULE_MASK. Also use MASK when used as a mask, otherwise use SIZE. No functional changes. Link: https://lkml.kernel.org/r/939b5754e47f528a6e6a6f28ffc5815d8d128033.1606161801.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by: Marco Elver <elver@google.com> Reviewed-by: Alexander Potapenko <glider@google.com> Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Branislav Rankov <Branislav.Rankov@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Evgenii Stepanov <eugenis@google.com> Cc: Kevin Brodsky <kevin.brodsky@arm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/test_kasan.c')
-rw-r--r--lib/test_kasan.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/test_kasan.c b/lib/test_kasan.c
index 662f862702fc..2947274cc2d3 100644
--- a/lib/test_kasan.c
+++ b/lib/test_kasan.c
@@ -25,7 +25,7 @@
#include "../mm/kasan/kasan.h"
-#define OOB_TAG_OFF (IS_ENABLED(CONFIG_KASAN_GENERIC) ? 0 : KASAN_SHADOW_SCALE_SIZE)
+#define OOB_TAG_OFF (IS_ENABLED(CONFIG_KASAN_GENERIC) ? 0 : KASAN_GRANULE_SIZE)
/*
* We assign some test results to these globals to make sure the tests