From patchwork Wed Oct 11 09:21:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Juan Quintela X-Patchwork-Id: 13417021 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 1E4A2CD6E53 for ; Wed, 11 Oct 2023 09:38:14 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qqVQX-0007Hk-JW; Wed, 11 Oct 2023 05:22:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qqVQV-0007HK-GH for qemu-devel@nongnu.org; Wed, 11 Oct 2023 05:22:47 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qqVQT-0004vO-UJ for qemu-devel@nongnu.org; Wed, 11 Oct 2023 05:22:47 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1697016165; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=AgPofhYt3rRsRk9IgSsmjCFWI/Wz4umAkgL+73ZjU2s=; b=OQjsU5tZiAdMTvMp6oheD4eNhQxWokB9saW24FkeK2FPGEEssPLaJajbCqHEaOTIRwhmY7 ezQgVPeENOjzgfHScDDC/pYRNs5L5FCgor5UhusyfmLO/sHYTdZvR6FogjMnqvgBBJ4i06 i0Mc+XMj7ylADMwD/JSwp1Jqo9DMwcM= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-687-j1bs3fGeM9yb7iOaYXlE7g-1; Wed, 11 Oct 2023 05:22:43 -0400 X-MC-Unique: j1bs3fGeM9yb7iOaYXlE7g-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 3C7CB101AA44; Wed, 11 Oct 2023 09:22:43 +0000 (UTC) Received: from secure.mitica (unknown [10.39.195.75]) by smtp.corp.redhat.com (Postfix) with ESMTP id 812BE1C060AE; Wed, 11 Oct 2023 09:22:41 +0000 (UTC) From: Juan Quintela To: qemu-devel@nongnu.org Cc: Laurent Vivier , Peter Xu , Paolo Bonzini , Markus Armbruster , Juan Quintela , Thomas Huth , Li Zhijian , Leonardo Bras , Eric Blake , Fabiano Rosas Subject: [PULL 18/65] migration/rdma: Eliminate error_propagate() Date: Wed, 11 Oct 2023 11:21:16 +0200 Message-ID: <20231011092203.1266-19-quintela@redhat.com> In-Reply-To: <20231011092203.1266-1-quintela@redhat.com> References: <20231011092203.1266-1-quintela@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.7 Received-SPF: pass client-ip=170.10.129.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Markus Armbruster When all we do with an Error we receive into a local variable is propagating to somewhere else, we can just as well receive it there right away. Signed-off-by: Markus Armbruster Reviewed-by: Fabiano Rosas Reviewed-by: Li Zhijian Reviewed-by: Juan Quintela Signed-off-by: Juan Quintela Message-ID: <20230928132019.2544702-12-armbru@redhat.com> --- migration/rdma.c | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) diff --git a/migration/rdma.c b/migration/rdma.c index bc6d8248f2..c858d3fbe4 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -2465,7 +2465,6 @@ static void qemu_rdma_cleanup(RDMAContext *rdma) static int qemu_rdma_source_init(RDMAContext *rdma, bool pin_all, Error **errp) { int ret, idx; - Error *local_err = NULL, **temp = &local_err; /* * Will be validated against destination's actual capabilities @@ -2473,14 +2472,14 @@ static int qemu_rdma_source_init(RDMAContext *rdma, bool pin_all, Error **errp) */ rdma->pin_all = pin_all; - ret = qemu_rdma_resolve_host(rdma, temp); + ret = qemu_rdma_resolve_host(rdma, errp); if (ret) { goto err_rdma_source_init; } ret = qemu_rdma_alloc_pd_cq(rdma); if (ret) { - ERROR(temp, "rdma migration: error allocating pd and cq! Your mlock()" + ERROR(errp, "rdma migration: error allocating pd and cq! Your mlock()" " limits may be too low. Please check $ ulimit -a # and " "search for 'ulimit -l' in the output"); goto err_rdma_source_init; @@ -2488,13 +2487,13 @@ static int qemu_rdma_source_init(RDMAContext *rdma, bool pin_all, Error **errp) ret = qemu_rdma_alloc_qp(rdma); if (ret) { - ERROR(temp, "rdma migration: error allocating qp!"); + ERROR(errp, "rdma migration: error allocating qp!"); goto err_rdma_source_init; } ret = qemu_rdma_init_ram_blocks(rdma); if (ret) { - ERROR(temp, "rdma migration: error initializing ram blocks!"); + ERROR(errp, "rdma migration: error initializing ram blocks!"); goto err_rdma_source_init; } @@ -2509,7 +2508,7 @@ static int qemu_rdma_source_init(RDMAContext *rdma, bool pin_all, Error **errp) for (idx = 0; idx < RDMA_WRID_MAX; idx++) { ret = qemu_rdma_reg_control(rdma, idx); if (ret) { - ERROR(temp, "rdma migration: error registering %d control!", + ERROR(errp, "rdma migration: error registering %d control!", idx); goto err_rdma_source_init; } @@ -2518,7 +2517,6 @@ static int qemu_rdma_source_init(RDMAContext *rdma, bool pin_all, Error **errp) return 0; err_rdma_source_init: - error_propagate(errp, local_err); qemu_rdma_cleanup(rdma); return -1; } @@ -4111,7 +4109,6 @@ void rdma_start_incoming_migration(const char *host_port, Error **errp) { int ret; RDMAContext *rdma; - Error *local_err = NULL; trace_rdma_start_incoming_migration(); @@ -4121,13 +4118,12 @@ void rdma_start_incoming_migration(const char *host_port, Error **errp) return; } - rdma = qemu_rdma_data_init(host_port, &local_err); + rdma = qemu_rdma_data_init(host_port, errp); if (rdma == NULL) { goto err; } - ret = qemu_rdma_dest_init(rdma, &local_err); - + ret = qemu_rdma_dest_init(rdma, errp); if (ret) { goto err; } @@ -4150,7 +4146,6 @@ void rdma_start_incoming_migration(const char *host_port, Error **errp) cleanup_rdma: qemu_rdma_cleanup(rdma); err: - error_propagate(errp, local_err); if (rdma) { g_free(rdma->host); g_free(rdma->host_port);