From patchwork Wed Sep 5 15:55:03 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Howells X-Patchwork-Id: 10589083 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EDC21112B for ; Wed, 5 Sep 2018 15:55:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DC7562A1A8 for ; Wed, 5 Sep 2018 15:55:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DB0BA2A432; Wed, 5 Sep 2018 15:55:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C07B42A49F for ; Wed, 5 Sep 2018 15:55:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727738AbeIEUZx (ORCPT ); Wed, 5 Sep 2018 16:25:53 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:50544 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726189AbeIEUZx (ORCPT ); Wed, 5 Sep 2018 16:25:53 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 2DAD240261BB; Wed, 5 Sep 2018 15:55:05 +0000 (UTC) Received: from warthog.procyon.org.uk (ovpn-123-84.rdu2.redhat.com [10.10.123.84]) by smtp.corp.redhat.com (Postfix) with ESMTP id 464B9202706C; Wed, 5 Sep 2018 15:55:04 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 Subject: [PATCH 04/11] UAPI: bcache: Fix use of embedded flexible array From: David Howells To: linux-api@vger.kernel.org, linux-kbuild@vger.kernel.org Cc: Coly Li , Kent Overstreet , linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org, dhowells@redhat.com Date: Wed, 05 Sep 2018 16:55:03 +0100 Message-ID: <153616290368.23468.7806230605345568524.stgit@warthog.procyon.org.uk> In-Reply-To: <153616286704.23468.584491117180383924.stgit@warthog.procyon.org.uk> References: <153616286704.23468.584491117180383924.stgit@warthog.procyon.org.uk> User-Agent: StGit/unknown-version MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Wed, 05 Sep 2018 15:55:05 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.6]); Wed, 05 Sep 2018 15:55:05 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'dhowells@redhat.com' RCPT:'' Sender: linux-kbuild-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The bkey struct defined by bcache is embedded in the jset struct. However, this is illegal in C++ as there's a "flexible array" at the end of the struct. Change this to be a 0-length struct instead. Signed-off-by: David Howells cc: Coly Li cc: Kent Overstreet cc: linux-bcache@vger.kernel.org --- include/uapi/linux/bcache.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/uapi/linux/bcache.h b/include/uapi/linux/bcache.h index 5d4f58e059fd..11863e903bff 100644 --- a/include/uapi/linux/bcache.h +++ b/include/uapi/linux/bcache.h @@ -23,7 +23,7 @@ static inline void SET_##name(type *k, __u64 v) \ struct bkey { __u64 high; __u64 low; - __u64 ptr[]; + __u64 ptr[0]; }; #define KEY_FIELD(name, field, offset, size) \