From patchwork Fri Mar 6 05:15:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Sementsov-Ogievskiy X-Patchwork-Id: 11423147 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7071E139A for ; Fri, 6 Mar 2020 05:20:15 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5098F2072A for ; Fri, 6 Mar 2020 05:20:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5098F2072A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=virtuozzo.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:59646 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jA5PC-0007nl-Ej for patchwork-qemu-devel@patchwork.kernel.org; Fri, 06 Mar 2020 00:20:14 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:51616) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jA5Kw-00088h-G2 for qemu-devel@nongnu.org; Fri, 06 Mar 2020 00:15:51 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jA5Kv-0000Y7-8k for qemu-devel@nongnu.org; Fri, 06 Mar 2020 00:15:50 -0500 Received: from relay.sw.ru ([185.231.240.75]:34004) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jA5Kv-0000PT-0H for qemu-devel@nongnu.org; Fri, 06 Mar 2020 00:15:49 -0500 Received: from vovaso.qa.sw.ru ([10.94.3.0] helo=kvm.qa.sw.ru) by relay.sw.ru with esmtp (Exim 4.92.3) (envelope-from ) id 1jA5Kn-0001tg-J2; Fri, 06 Mar 2020 08:15:41 +0300 From: Vladimir Sementsov-Ogievskiy To: qemu-devel@nongnu.org Subject: [PATCH v8 07/10] virtio-9p: introduce ERRP_AUTO_PROPAGATE Date: Fri, 6 Mar 2020 08:15:33 +0300 Message-Id: <20200306051536.27803-8-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20200306051536.27803-1-vsementsov@virtuozzo.com> References: <20200306051536.27803-1-vsementsov@virtuozzo.com> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 185.231.240.75 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , vsementsov@virtuozzo.com, Christian Schoenebeck , armbru@redhat.com, Greg Kurz Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" If we want to add some info to errp (by error_prepend() or error_append_hint()), we must use the ERRP_AUTO_PROPAGATE macro. Otherwise, this info will not be added when errp == &error_fatal (the program will exit prior to the error_append_hint() or error_prepend() call). Fix such cases. If we want to check error after errp-function call, we need to introduce local_err and then propagate it to errp. Instead, use ERRP_AUTO_PROPAGATE macro, benefits are: 1. No need of explicit error_propagate call 2. No need of explicit local_err variable: use errp directly 3. ERRP_AUTO_PROPAGATE leaves errp as is if it's not NULL or &error_fatal, this means that we don't break error_abort (we'll abort on error_set, not on error_propagate) This commit is generated by command sed -n '/^virtio-9p$/,/^$/{s/^F: //p}' MAINTAINERS | \ xargs git ls-files | grep '\.[hc]$' | \ xargs spatch \ --sp-file scripts/coccinelle/auto-propagated-errp.cocci \ --macro-file scripts/cocci-macro-file.h \ --in-place --no-show-diff --max-width 80 Reported-by: Kevin Wolf Reported-by: Greg Kurz Signed-off-by: Vladimir Sementsov-Ogievskiy Acked-by: Greg Kurz Reviewed-by: Christian Schoenebeck --- hw/9pfs/9p-local.c | 12 +++++------- hw/9pfs/9p.c | 1 + 2 files changed, 6 insertions(+), 7 deletions(-) diff --git a/hw/9pfs/9p-local.c b/hw/9pfs/9p-local.c index 54e012e5b4..0361e0c0b4 100644 --- a/hw/9pfs/9p-local.c +++ b/hw/9pfs/9p-local.c @@ -1479,10 +1479,10 @@ static void error_append_security_model_hint(Error *const *errp) static int local_parse_opts(QemuOpts *opts, FsDriverEntry *fse, Error **errp) { + ERRP_AUTO_PROPAGATE(); const char *sec_model = qemu_opt_get(opts, "security_model"); const char *path = qemu_opt_get(opts, "path"); const char *multidevs = qemu_opt_get(opts, "multidevs"); - Error *local_err = NULL; if (!sec_model) { error_setg(errp, "security_model property not set"); @@ -1516,11 +1516,10 @@ static int local_parse_opts(QemuOpts *opts, FsDriverEntry *fse, Error **errp) fse->export_flags &= ~V9FS_FORBID_MULTIDEVS; fse->export_flags &= ~V9FS_REMAP_INODES; } else { - error_setg(&local_err, "invalid multidevs property '%s'", + error_setg(errp, "invalid multidevs property '%s'", multidevs); - error_append_hint(&local_err, "Valid options are: multidevs=" + error_append_hint(errp, "Valid options are: multidevs=" "[remap|forbid|warn]\n"); - error_propagate(errp, local_err); return -1; } } @@ -1530,9 +1529,8 @@ static int local_parse_opts(QemuOpts *opts, FsDriverEntry *fse, Error **errp) return -1; } - if (fsdev_throttle_parse_opts(opts, &fse->fst, &local_err)) { - error_propagate_prepend(errp, local_err, - "invalid throttle configuration: "); + if (fsdev_throttle_parse_opts(opts, &fse->fst, errp)) { + error_prepend(errp, "invalid throttle configuration: "); return -1; } diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c index 9e046f7acb..3aa6a57f3a 100644 --- a/hw/9pfs/9p.c +++ b/hw/9pfs/9p.c @@ -4023,6 +4023,7 @@ void pdu_submit(V9fsPDU *pdu, P9MsgHeader *hdr) int v9fs_device_realize_common(V9fsState *s, const V9fsTransport *t, Error **errp) { + ERRP_AUTO_PROPAGATE(); int i, len; struct stat stat; FsDriverEntry *fse;