From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935872AbdCJM4N (ORCPT ); Fri, 10 Mar 2017 07:56:13 -0500 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:44447 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935652AbdCJLx2 (ORCPT ); Fri, 10 Mar 2017 06:53:28 -0500 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "Sage Weil" , "Jeff Layton" , "Ilya Dryomov" Date: Fri, 10 Mar 2017 11:46:10 +0000 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.2 117/199] ceph: fix bad endianness handling in parse_reply_info_extra In-Reply-To: X-SA-Exim-Connect-IP: 82.70.136.246 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.2.87-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Jeff Layton commit 6df8c9d80a27cb587f61b4f06b57e248d8bc3f86 upstream. sparse says: fs/ceph/mds_client.c:291:23: warning: restricted __le32 degrades to integer fs/ceph/mds_client.c:293:28: warning: restricted __le32 degrades to integer fs/ceph/mds_client.c:294:28: warning: restricted __le32 degrades to integer fs/ceph/mds_client.c:296:28: warning: restricted __le32 degrades to integer The op value is __le32, so we need to convert it before comparing it. Signed-off-by: Jeff Layton Reviewed-by: Sage Weil Signed-off-by: Ilya Dryomov [bwh: Backported to 3.2: only filelock and directory replies are handled] Signed-off-by: Ben Hutchings --- fs/ceph/mds_client.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -238,7 +238,9 @@ static int parse_reply_info_extra(void * struct ceph_mds_reply_info_parsed *info, int features) { - if (info->head->op == CEPH_MDS_OP_GETFILELOCK) + u32 op = le32_to_cpu(info->head->op); + + if (op == CEPH_MDS_OP_GETFILELOCK) return parse_reply_info_filelock(p, end, info, features); else return parse_reply_info_dir(p, end, info, features);