+ kasan-improve-vmalloc-tests-fix.patch added to -mm tree

+ kasan-improve-vmalloc-tests-fix.patch added to -mm tree

[Andrew Morton]

The patch titled
     Subject: similar to "kasan: test: fix compatibility with FORTIFY_SOURCE"
has been added to the -mm tree.  Its filename is
     kasan-improve-vmalloc-tests-fix.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/kasan-improve-vmalloc-tests-fix.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/kasan-improve-vmalloc-tests-fix.patch

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next and is updated
there every 3-4 working days

------------------------------------------------------
From: Stephen Rothwell <sfr@canb.auug.org.au>
Subject: similar to "kasan: test: fix compatibility with FORTIFY_SOURCE"

Link: https://lkml.kernel.org/r/20220128144801.73f5ced0@canb.auug.org.au
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/test_kasan.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/lib/test_kasan.c~kasan-improve-vmalloc-tests-fix
+++ a/lib/test_kasan.c
@@ -1096,6 +1096,8 @@ static void vmalloc_oob(struct kunit *te
 	v_ptr = vmalloc(size);
 	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, v_ptr);
 
+	OPTIMIZER_HIDE_VAR(v_ptr);
+
 	/*
 	 * We have to be careful not to hit the guard page in vmalloc tests.
 	 * The MMU will catch that and crash us.
_

Patches currently in -mm which might be from sfr@canb.auug.org.au are

kasan-improve-vmalloc-tests-fix.patch