[merged mm-hotfixes-stable] selftests-mm-ksm-fix-incorrect-evaluation-of-parameter.patch removed from -mm tree

[merged mm-hotfixes-stable] selftests-mm-ksm-fix-incorrect-evaluation-of-parameter.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: selftests: mm: ksm: fix incorrect evaluation of parameter
has been removed from the -mm tree.  Its filename was
     selftests-mm-ksm-fix-incorrect-evaluation-of-parameter.patch

This patch was dropped because it was merged into the mm-hotfixes-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Ayush Jain <ayush.jain3@amd.com>
Subject: selftests: mm: ksm: fix incorrect evaluation of parameter
Date: Fri, 28 Jul 2023 22:09:51 +0530

A missing break in kms_tests leads to kselftest hang when the parameter -s
is used.

In current code flow because of missing break in -s, -t parses args
spilled from -s and as -t accepts only valid values as 0,1 so any arg in
-s >1 or <0, gets in ksm_test failure

This went undetected since, before the addition of option -t, the next
case -M would immediately break out of the switch statement but that is no
longer the case

Add the missing break statement.

----Before----
./ksm_tests -H -s 100
Invalid merge type

----After----
./ksm_tests -H -s 100
Number of normal pages:    0
Number of huge pages:    50
Total size:    100 MiB
Total time:    0.401732682 s
Average speed:  248.922 MiB/s

Link: https://lkml.kernel.org/r/20230728163952.4634-1-ayush.jain3@amd.com
Fixes: 07115fcc15b4 ("selftests/mm: add new selftests for KSM")
Signed-off-by: Ayush Jain <ayush.jain3@amd.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Stefan Roesch <shr@devkernel.io>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 tools/testing/selftests/mm/ksm_tests.c |    1 +
 1 file changed, 1 insertion(+)

--- a/tools/testing/selftests/mm/ksm_tests.c~selftests-mm-ksm-fix-incorrect-evaluation-of-parameter
+++ a/tools/testing/selftests/mm/ksm_tests.c
@@ -831,6 +831,7 @@ int main(int argc, char *argv[])
 				printf("Size must be greater than 0\n");
 				return KSFT_FAIL;
 			}
+			break;
 		case 't':
 			{
 				int tmp = atoi(optarg);
_

Patches currently in -mm which might be from ayush.jain3@amd.com are

selftests-mm-add-ksm_merge_time-tests.patch