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s390/mcck: fix calculation of SIE critical section size

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The size of SIE critical section is calculated wrongly
as result of a missed subtraction in commit 0b0ed657fe
("s390: remove critical section cleanup from entry.S")

Fixes: 0b0ed657fe ("s390: remove critical section cleanup from entry.S")
Cc: <stable@vger.kernel.org>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Alexander Gordeev
2021-05-17 08:18:11 +02:00
committed by Vasily Gorbik
parent 614124bea7
commit 5bcbe3285f
1 changed files with 1 additions and 1 deletions
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2
arch/s390/kernel/entry.S
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@@ -651,7 +651,7 @@ ENDPROC(stack_overflow)
.Lcleanup_sie_mcck:
larl %r13,.Lsie_entry
slgr %r9,%r13
larl %r13,.Lsie_skip
lghi %r13,.Lsie_skip - .Lsie_entry
clgr %r9,%r13
jh .Lcleanup_sie_int
oi __LC_CPU_FLAGS+7, _CIF_MCCK_GUEST