The patch titled
Subject: kasan, x86, s390: update undef CONFIG_KASAN
has been removed from the -mm tree. Its filename was
kasan-x86-s390-update-undef-config_kasan.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Subject: kasan, x86, s390: update undef CONFIG_KASAN
With the intoduction of hardware tag-based KASAN some kernel checks of
this kind:
ifdef CONFIG_KASAN
will be updated to:
if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
x86 and s390 use a trick to #undef CONFIG_KASAN for some of the code
that isn't linked with KASAN runtime and shouldn't have any KASAN
annotations.
Also #undef CONFIG_KASAN_GENERIC with CONFIG_KASAN.
Link: https://lkml.kernel.org/r/9d84bfaaf8fabe0fc89f913c9e420a30bd31a260.1606161801.git.andreyknvl@xxxxxxxxxx
Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx>
Reviewed-by: Marco Elver <elver@xxxxxxxxxx>
Acked-by: Vasily Gorbik <gor@xxxxxxxxxxxxx>
Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx>
Tested-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx>
Cc: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: Branislav Rankov <Branislav.Rankov@xxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Evgenii Stepanov <eugenis@xxxxxxxxxx>
Cc: Kevin Brodsky <kevin.brodsky@xxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/s390/boot/string.c | 1 +
arch/x86/boot/compressed/misc.h | 1 +
2 files changed, 2 insertions(+)
--- a/arch/s390/boot/string.c~kasan-x86-s390-update-undef-config_kasan
+++ a/arch/s390/boot/string.c
@@ -3,6 +3,7 @@
#include <linux/kernel.h>
#include <linux/errno.h>
#undef CONFIG_KASAN
+#undef CONFIG_KASAN_GENERIC
#include "../lib/string.c"
int strncmp(const char *cs, const char *ct, size_t count)
--- a/arch/x86/boot/compressed/misc.h~kasan-x86-s390-update-undef-config_kasan
+++ a/arch/x86/boot/compressed/misc.h
@@ -12,6 +12,7 @@
#undef CONFIG_PARAVIRT_XXL
#undef CONFIG_PARAVIRT_SPINLOCKS
#undef CONFIG_KASAN
+#undef CONFIG_KASAN_GENERIC
/* cpu_feature_enabled() cannot be used this early */
#define USE_EARLY_PGTABLE_L5
_
Patches currently in -mm which might be from andreyknvl@xxxxxxxxxx are
