From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:46755 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S966706AbcCPPPk (ORCPT ); Wed, 16 Mar 2016 11:15:40 -0400 Date: Wed, 16 Mar 2016 08:15:39 -0700 From: Greg KH To: Christian Borntraeger Cc: stable@vger.kernel.org, schwidefsky@de.ibm.com Subject: Re: [PATCH/backport for 4.4] s390/cpumf: Fix lpp detection Message-ID: <20160316151539.GA6720@kroah.com> References: <1458122578-63022-1-git-send-email-borntraeger@de.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1458122578-63022-1-git-send-email-borntraeger@de.ibm.com> Sender: stable-owner@vger.kernel.org List-ID: On Wed, Mar 16, 2016 at 11:02:58AM +0100, Christian Borntraeger wrote: > we have to check bit 40 of the facility list before issuing LPP > and not bit 48. Otherwise a guest running on a system with > "The decimal-floating-point zoned-conversion facility" and without > the "The set-program-parameters facility" might crash on an lpp > instruction. > > Signed-off-by: Christian Borntraeger > Cc: stable@vger.kernel.org # v4.4+ > Fixes: e22cf8ca6f75 ("s390/cpumf: rework program parameter setting to detect guest samples") > Signed-off-by: Martin Schwidefsky > --- > arch/s390/kernel/head64.S | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) What is the git commit id of this patch in Linus's tree? thanks, greg k-h