From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 04AB2C04AB6 for ; Tue, 28 May 2019 06:09:39 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CB7F42070D for ; Tue, 28 May 2019 06:09:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CB7F42070D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([127.0.0.1]:57735 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hVVIn-0003Tg-Uf for qemu-devel@archiver.kernel.org; Tue, 28 May 2019 02:09:37 -0400 Received: from eggs.gnu.org ([209.51.188.92]:57575) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hVVHx-0003Ce-Fb for qemu-devel@nongnu.org; Tue, 28 May 2019 02:08:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hVVHw-0003C6-Gl for qemu-devel@nongnu.org; Tue, 28 May 2019 02:08:45 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45514) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hVVHw-00036f-CN for qemu-devel@nongnu.org; Tue, 28 May 2019 02:08:44 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D46EA3082163; Tue, 28 May 2019 06:08:33 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-117-250.ams2.redhat.com [10.36.117.250]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 780847BE89; Tue, 28 May 2019 06:08:31 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id E198A1138648; Tue, 28 May 2019 08:08:29 +0200 (CEST) From: Markus Armbruster To: "Dr. David Alan Gilbert" References: <20190523094433.30297-1-yury-kotov@yandex-team.ru> Date: Tue, 28 May 2019 08:08:29 +0200 In-Reply-To: <20190523094433.30297-1-yury-kotov@yandex-team.ru> (Yury Kotov's message of "Thu, 23 May 2019 12:44:33 +0300") Message-ID: <87k1ebdsbm.fsf@dusky.pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.47]); Tue, 28 May 2019 06:08:34 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: Re: [Qemu-devel] [PATCH v3] monitor: Fix return type of monitor_fdset_dup_fd_find X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Yury Kotov , Paolo Bonzini , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" David, got anything queued for the monitor? If yes, can you stick this in? If not, I can handle it. Yury Kotov writes: > monitor_fdset_dup_fd_find_remove() and monitor_fdset_dup_fd_find() > return mon_fdset->id which is int64_t. Downcasting from int64_t to int > leads to a bug with removing fd from fdset with id >= 2^32. > So, fix return types for these function. > > Signed-off-by: Yury Kotov > Reviewed-by: Markus Armbruster > --- > include/monitor/monitor.h | 2 +- > monitor.c | 4 ++-- > stubs/fdset.c | 2 +- > 3 files changed, 4 insertions(+), 4 deletions(-) > > diff --git a/include/monitor/monitor.h b/include/monitor/monitor.h > index 86656297f1..51f048d61f 100644 > --- a/include/monitor/monitor.h > +++ b/include/monitor/monitor.h > @@ -45,6 +45,6 @@ AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id, > int monitor_fdset_get_fd(int64_t fdset_id, int flags); > int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd); > void monitor_fdset_dup_fd_remove(int dup_fd); > -int monitor_fdset_dup_fd_find(int dup_fd); > +int64_t monitor_fdset_dup_fd_find(int dup_fd); > > #endif /* MONITOR_H */ > diff --git a/monitor.c b/monitor.c > index 6428eb3b7e..a0e637f7d6 100644 > --- a/monitor.c > +++ b/monitor.c > @@ -2602,7 +2602,7 @@ err: > return -1; > } > > -static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove) > +static int64_t monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove) > { > MonFdset *mon_fdset; > MonFdsetFd *mon_fdset_fd_dup; > @@ -2630,7 +2630,7 @@ err: > return -1; > } > > -int monitor_fdset_dup_fd_find(int dup_fd) > +int64_t monitor_fdset_dup_fd_find(int dup_fd) > { > return monitor_fdset_dup_fd_find_remove(dup_fd, false); > } > diff --git a/stubs/fdset.c b/stubs/fdset.c > index 4f3edf2ea4..a1b8f41f62 100644 > --- a/stubs/fdset.c > +++ b/stubs/fdset.c > @@ -7,7 +7,7 @@ int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd) > return -1; > } > > -int monitor_fdset_dup_fd_find(int dup_fd) > +int64_t monitor_fdset_dup_fd_find(int dup_fd) > { > return -1; > }