This is a note to let you know that I've just added the patch titled
powerpc/xmon: Fix another endiannes issue in RTAS call from xmon
to the 3.18-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:
powerpc-xmon-fix-another-endiannes-issue-in-rtas-call-from-xmon.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From e6eb2eba494d6f99e69ca3c3748cd37a2544ab38 Mon Sep 17 00:00:00 2001
From: Laurent Dufour <[email protected]>
Date: Thu, 15 Jan 2015 18:23:47 +0100
Subject: powerpc/xmon: Fix another endiannes issue in RTAS call from xmon
From: Laurent Dufour <[email protected]>
commit e6eb2eba494d6f99e69ca3c3748cd37a2544ab38 upstream.
The commit 3b8a3c010969 ("powerpc/pseries: Fix endiannes issue in RTAS
call from xmon") was fixing an endianness issue in the call made from
xmon to RTAS.
However, as Michael Ellerman noticed, this fix was not complete, the
token value was not byte swapped. This lead to call an unexpected and
most of the time unexisting RTAS function, which is silently ignored by
RTAS.
This fix addresses this hole.
Reported-by: Michael Ellerman <[email protected]>
Signed-off-by: Laurent Dufour <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/powerpc/xmon/xmon.c | 1 +
1 file changed, 1 insertion(+)
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -293,6 +293,7 @@ static inline void disable_surveillance(
args.token = rtas_token("set-indicator");
if (args.token == RTAS_UNKNOWN_SERVICE)
return;
+ args.token = cpu_to_be32(args.token);
args.nargs = cpu_to_be32(3);
args.nret = cpu_to_be32(1);
args.rets = &args.args[3];
Patches currently in stable-queue which might be from
[email protected] are
queue-3.18/powerpc-xmon-fix-another-endiannes-issue-in-rtas-call-from-xmon.patch
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