+ x86-purgatory-disable-kmsan-instrumentation.patch added to mm-hotfixes-unstable branch

+ x86-purgatory-disable-kmsan-instrumentation.patch added to mm-hotfixes-unstable branch

[Andrew Morton]

The patch titled
     Subject: x86/purgatory: disable KMSAN instrumentation
has been added to the -mm mm-hotfixes-unstable branch.  Its filename is
     x86-purgatory-disable-kmsan-instrumentation.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/x86-purgatory-disable-kmsan-instrumentation.patch

This patch will later appear in the mm-hotfixes-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Alexander Potapenko <glider@google.com>
Subject: x86/purgatory: disable KMSAN instrumentation
Date: Mon, 24 Oct 2022 23:21:41 +0200

The stand-alone purgatory.ro does not contain the KMSAN runtime, therefore
it can't be built with KMSAN compiler instrumentation.

Link: https://lkml.kernel.org/r/20221024212144.2852069-2-glider@google.com
Link: https://github.com/google/kmsan/issues/89
Signed-off-by: Alexander Potapenko <glider@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/x86/purgatory/Makefile |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/x86/purgatory/Makefile~x86-purgatory-disable-kmsan-instrumentation
+++ a/arch/x86/purgatory/Makefile
@@ -26,6 +26,7 @@ GCOV_PROFILE	:= n
 KASAN_SANITIZE	:= n
 UBSAN_SANITIZE	:= n
 KCSAN_SANITIZE	:= n
+KMSAN_SANITIZE	:= n
 KCOV_INSTRUMENT := n
 
 # These are adjustments to the compiler flags used for objects that
_

Patches currently in -mm which might be from glider@google.com are

mm-kmsan-export-kmsan_copy_page_meta.patch
x86-purgatory-disable-kmsan-instrumentation.patch
kconfigdebug-disable-config_frame_warn-for-kmsan-by-default.patch
x86-asm-make-sure-__put_user_size-evaluates-pointer-once.patch
x86-fortify-kmsan-fix-kmsan-fortify-builds.patch