This is a note to let you know that I've just added the patch titled
s390/time: fix get_tod_clock_ext inline assembly
to the 3.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
s390-time-fix-get_tod_clock_ext-inline-assembly.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 7ab64a85e1a009046f97413a573e83fd85f7804d Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Date: Mon, 28 Oct 2013 11:17:10 +0100
Subject: s390/time: fix get_tod_clock_ext inline assembly
From: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
commit 7ab64a85e1a009046f97413a573e83fd85f7804d upstream.
The get_tod_clock_ext inline assembly does not specify its output
operands correctly. This can cause incorrect code to be generated.
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/s390/include/asm/timex.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -71,9 +71,11 @@ static inline void local_tick_enable(uns
typedef unsigned long long cycles_t;
-static inline void get_tod_clock_ext(char *clk)
+static inline void get_tod_clock_ext(char clk[16])
{
- asm volatile("stcke %0" : "=Q" (*clk) : : "cc");
+ typedef struct { char _[sizeof(clk)]; } addrtype;
+
+ asm volatile("stcke %0" : "=Q" (*(addrtype *) clk) : : "cc");
}
static inline unsigned long long get_tod_clock(void)
Patches currently in stable-queue which might be from schwidefsky@xxxxxxxxxx are
queue-3.12/s390-time-fix-get_tod_clock_ext-inline-assembly.patch
queue-3.12/s390-vtime-correct-idle-time-calculation.patch
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