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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 92041C47404 for ; Fri, 11 Oct 2019 17:53:18 +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 6A04F206A1 for ; Fri, 11 Oct 2019 17:53:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6A04F206A1 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+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:54966 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iIz6L-00032r-1M for qemu-devel@archiver.kernel.org; Fri, 11 Oct 2019 13:53:17 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:36922) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iIxRA-0006fT-Pa for qemu-devel@nongnu.org; Fri, 11 Oct 2019 12:06:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iIxR7-0004nB-RN for qemu-devel@nongnu.org; Fri, 11 Oct 2019 12:06:40 -0400 Received: from relay.sw.ru ([185.231.240.75]:48174) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iIxR7-0004Ii-Jm; Fri, 11 Oct 2019 12:06:37 -0400 Received: from [10.94.3.0] (helo=kvm.qa.sw.ru) by relay.sw.ru with esmtp (Exim 4.92.2) (envelope-from ) id 1iIxQm-0003XG-4Q; Fri, 11 Oct 2019 19:06:16 +0300 From: Vladimir Sementsov-Ogievskiy To: qemu-devel@nongnu.org Subject: [RFC v5 060/126] megasas: introduce ERRP_AUTO_PROPAGATE Date: Fri, 11 Oct 2019 19:04:46 +0300 Message-Id: <20191011160552.22907-61-vsementsov@virtuozzo.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191011160552.22907-1-vsementsov@virtuozzo.com> References: <20191011160552.22907-1-vsementsov@virtuozzo.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 , Fam Zheng , Hannes Reinecke , vsementsov@virtuozzo.com, qemu-block@nongnu.org, armbru@redhat.com, Greg Kurz , Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.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 == &fatal_err (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 than 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_fatel, this means that we don't break error_abort (we'll abort on error_set, not on error_propagate) This commit (together with its neighbors) was generated by for f in $(git grep -l errp \*.[ch]); do \ spatch --sp-file scripts/coccinelle/auto-propagated-errp.cocci \ --macro-file scripts/cocci-macro-file.h --in-place --no-show-diff $f; \ done; then fix a bit of compilation problems: coccinelle for some reason leaves several f() { ... goto out; ... out: } patterns, with "out:" at function end. then ./python/commit-per-subsystem.py MAINTAINERS "$(< auto-msg)" (auto-msg was a file with this commit message) Still, for backporting it may be more comfortable to use only the first command and then do one huge commit. Reported-by: Kevin Wolf Reported-by: Greg Kurz Signed-off-by: Vladimir Sementsov-Ogievskiy --- hw/scsi/megasas.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c index de9bd20887..007cfcff88 100644 --- a/hw/scsi/megasas.c +++ b/hw/scsi/megasas.c @@ -2311,11 +2311,11 @@ static const struct SCSIBusInfo megasas_scsi_info = { static void megasas_scsi_realize(PCIDevice *dev, Error **errp) { + ERRP_AUTO_PROPAGATE(); MegasasState *s = MEGASAS(dev); MegasasBaseClass *b = MEGASAS_DEVICE_GET_CLASS(s); uint8_t *pci_conf; int i, bar_type; - Error *err = NULL; int ret; pci_conf = dev->config; @@ -2326,20 +2326,19 @@ static void megasas_scsi_realize(PCIDevice *dev, Error **errp) pci_conf[PCI_INTERRUPT_PIN] = 0x01; if (s->msi != ON_OFF_AUTO_OFF) { - ret = msi_init(dev, 0x50, 1, true, false, &err); + ret = msi_init(dev, 0x50, 1, true, false, errp); /* Any error other than -ENOTSUP(board's MSI support is broken) * is a programming error */ assert(!ret || ret == -ENOTSUP); if (ret && s->msi == ON_OFF_AUTO_ON) { /* Can't satisfy user's explicit msi=on request, fail */ - error_append_hint(&err, "You have to use msi=auto (default) or " - "msi=off with this machine type.\n"); - error_propagate(errp, err); + error_append_hint(errp, "You have to use msi=auto (default) or " + "msi=off with this machine type.\n"); return; } else if (ret) { /* With msi=auto, we fall back to MSI off silently */ s->msi = ON_OFF_AUTO_OFF; - error_free(err); + error_free_errp(errp); } } -- 2.21.0