powerpc/xmon: Fix another endiannes issue in RTAS call from xmon

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 <mpe@ellerman.id.au>
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index c8efbb37d6e076ab123a3d5d8066f58edd36acd8..e23f559faa478e534dc805425c5b22b3ea38a3cd 100644 (file)
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -293,6 +293,7 @@ static inline void disable_surveillance(void)
        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];