The quilt patch titled
Subject: s390/checksum: add a KMSAN check
has been removed from the -mm tree. Its filename was
s390-checksum-add-a-kmsan-check.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>
Subject: s390/checksum: add a KMSAN check
Date: Fri, 21 Jun 2024 13:35:09 +0200
Add a KMSAN check to the CKSM inline assembly, similar to how it was done
for ASAN in commit e42ac7789df6 ("s390/checksum: always use cksm
instruction").
Link: https://lkml.kernel.org/r/20240621113706.315500-26-iii@xxxxxxxxxxxxx
Signed-off-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>
Acked-by: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Heiko Carstens <hca@xxxxxxxxxxxxx>
Cc: Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: <kasan-dev@xxxxxxxxxxxxxxxx>
Cc: Marco Elver <elver@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Roman Gushchin <roman.gushchin@xxxxxxxxx>
Cc: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
Cc: Sven Schnelle <svens@xxxxxxxxxxxxx>
Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/s390/include/asm/checksum.h | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/s390/include/asm/checksum.h~s390-checksum-add-a-kmsan-check
+++ a/arch/s390/include/asm/checksum.h
@@ -13,6 +13,7 @@
#define _S390_CHECKSUM_H
#include <linux/instrumented.h>
+#include <linux/kmsan-checks.h>
#include <linux/in6.h>
static inline __wsum cksm(const void *buff, int len, __wsum sum)
@@ -23,6 +24,7 @@ static inline __wsum cksm(const void *bu
};
instrument_read(buff, len);
+ kmsan_check_memory(buff, len);
asm volatile("\n"
"0: cksm %[sum],%[rp]\n"
" jo 0b\n"
_
Patches currently in -mm which might be from iii@xxxxxxxxxxxxx are
