[merged mm-stable] s390-cpacf-unpoison-the-results-of-cpacf_trng.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
Subject: s390/cpacf: unpoison the results of cpacf_trng()
has been removed from the -mm tree. Its filename was
s390-cpacf-unpoison-the-results-of-cpacf_trng.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 <i...@linux.ibm.com>
Subject: s390/cpacf: unpoison the results of cpacf_trng()
Date: Fri, 21 Jun 2024 13:35:10 +0200

Prevent KMSAN from complaining about buffers filled by cpacf_trng() being
uninitialized.

Link: https://lkml.kernel.org/r/20240621113706...@linux.ibm.com
Signed-off-by: Ilya Leoshkevich <i...@linux.ibm.com>
Tested-by: Alexander Gordeev <agor...@linux.ibm.com>
Reviewed-by: Alexander Potapenko <gli...@google.com>
Acked-by: Heiko Carstens <h...@linux.ibm.com>
Cc: Christian Borntraeger <bornt...@linux.ibm.com>
Cc: Christoph Lameter <c...@linux.com>
Cc: David Rientjes <rien...@google.com>
Cc: Dmitry Vyukov <dvy...@google.com>
Cc: Hyeonggon Yoo <42.h...@gmail.com>
Cc: Joonsoo Kim <iamjoon...@lge.com>
Cc: <kasa...@googlegroups.com>
Cc: Marco Elver <el...@google.com>
Cc: Mark Rutland <mark.r...@arm.com>
Cc: Masami Hiramatsu (Google) <mhir...@kernel.org>
Cc: Pekka Enberg <pen...@kernel.org>
Cc: Roman Gushchin <roman.g...@linux.dev>
Cc: Steven Rostedt (Google) <ros...@goodmis.org>
Cc: Sven Schnelle <sv...@linux.ibm.com>
Cc: Vasily Gorbik <g...@linux.ibm.com>
Cc: Vlastimil Babka <vba...@suse.cz>
Signed-off-by: Andrew Morton <ak...@linux-foundation.org>
---

arch/s390/include/asm/cpacf.h | 3 +++
1 file changed, 3 insertions(+)

--- a/arch/s390/include/asm/cpacf.h~s390-cpacf-unpoison-the-results-of-cpacf_trng
+++ a/arch/s390/include/asm/cpacf.h
@@ -12,6 +12,7 @@
#define _ASM_S390_CPACF_H

#include <asm/facility.h>
+#include <linux/kmsan-checks.h>

/*
* Instruction opcodes for the CPACF instructions
@@ -542,6 +543,8 @@ static inline void cpacf_trng(u8 *ucbuf,
: [ucbuf] "+&d" (u.pair), [cbuf] "+&d" (c.pair)
: [fc] "K" (CPACF_PRNO_TRNG), [opc] "i" (CPACF_PRNO)
: "cc", "memory", "0");
+ kmsan_unpoison_memory(ucbuf, ucbuf_len);
+ kmsan_unpoison_memory(cbuf, cbuf_len);
}

/**
_

Patches currently in -mm which might be from i...@linux.ibm.com are