The patch titled
Subject: kasan-remove-redundant-config-option-v3
has been added to the -mm tree. Its filename is
kasan-remove-redundant-config-option-v3.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/kasan-remove-redundant-config-option-v3.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/kasan-remove-redundant-config-option-v3.patch
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------------------------------------------------------
From: Walter Wu <walter-zh.wu@xxxxxxxxxxxx>
Subject: kasan-remove-redundant-config-option-v3
fix remaining the pre-processor syntax
Link: https://lkml.kernel.org/r/20210108040940.1138-1-walter-zh.wu@xxxxxxxxxxxx
Signed-off-by: Walter Wu <walter-zh.wu@xxxxxxxxxxxx>
Suggested-by: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Reviewed-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/Kconfig.kasan | 3 +--
mm/kasan/common.c | 2 +-
mm/kasan/report_generic.c | 2 +-
3 files changed, 3 insertions(+), 4 deletions(-)
--- a/lib/Kconfig.kasan~kasan-remove-redundant-config-option-v3
+++ a/lib/Kconfig.kasan
@@ -139,10 +139,9 @@ config KASAN_INLINE
endchoice
config KASAN_STACK
- bool "Enable stack instrumentation (unsafe)"
+ bool "Enable stack instrumentation (unsafe)" if CC_IS_CLANG && !COMPILE_TEST
depends on KASAN_GENERIC || KASAN_SW_TAGS
default y if CC_IS_GCC
- default n if CC_IS_CLANG
help
The LLVM stack address sanitizer has a know problem that
causes excessive stack usage in a lot of functions, see
--- a/mm/kasan/common.c~kasan-remove-redundant-config-option-v3
+++ a/mm/kasan/common.c
@@ -63,7 +63,7 @@ void __kasan_unpoison_range(const void *
kasan_unpoison(address, size);
}
-#if defined(CONFIG_KASAN_STACK)
+#ifdef CONFIG_KASAN_STACK
/* Unpoison the entire stack for a task. */
void kasan_unpoison_task_stack(struct task_struct *task)
{
--- a/mm/kasan/report_generic.c~kasan-remove-redundant-config-option-v3
+++ a/mm/kasan/report_generic.c
@@ -128,7 +128,7 @@ void kasan_metadata_fetch_row(char *buff
memcpy(buffer, kasan_mem_to_shadow(row), META_BYTES_PER_ROW);
}
-#if defined(CONFIG_KASAN_STACK)
+#ifdef CONFIG_KASAN_STACK
static bool __must_check tokenize_frame_descr(const char **frame_descr,
char *token, size_t max_tok_len,
unsigned long *value)
_
Patches currently in -mm which might be from walter-zh.wu@xxxxxxxxxxxx are
kasan-remove-redundant-config-option.patch
kasan-remove-redundant-config-option-v3.patch
