From patchwork Thu Sep 28 13:20:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Markus Armbruster X-Patchwork-Id: 1840822 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=Djpqfr62; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RxDkg5nHXz1yp0 for ; Thu, 28 Sep 2023 23:25:47 +1000 (AEST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qlqwu-0003k7-4f; Thu, 28 Sep 2023 09:21:00 -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 1qlqwd-0003bg-I3 for qemu-devel@nongnu.org; Thu, 28 Sep 2023 09:20:44 -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 1qlqwP-0008Gl-FU for qemu-devel@nongnu.org; Thu, 28 Sep 2023 09:20:42 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1695907228; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ghHgLUIvURwmGikhRFTWt9ONxwDm/FS8NpoQo04FRlM=; b=Djpqfr62mqEhX21tE5P+8rMif4KDUc1tZJBNPrTH9F9f370x7KcfvfpjFBAdzraw+YaA3m 5xgJm2q2ylT9lq+Yx15vilFuczkyXY4Xwio2zgz29hfUjU9EaodZAQ+zBqEgIpHyCVoT9K ECiNu21pWQup1Httf9pTIKC4vp6rJik= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-375-H-5xaNKgNxCPyT85VSE3Rg-1; Thu, 28 Sep 2023 09:20:24 -0400 X-MC-Unique: H-5xaNKgNxCPyT85VSE3Rg-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (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 771B33C147E3; Thu, 28 Sep 2023 13:20:24 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.39.192.25]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 554AC40C2070; Thu, 28 Sep 2023 13:20:24 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 5E11521E68A6; Thu, 28 Sep 2023 15:20:20 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Cc: quintela@redhat.com, peterx@redhat.com, leobras@redhat.com, farosas@suse.de, lizhijian@fujitsu.com, eblake@redhat.com Subject: [PATCH v2 50/53] migration/rdma: Silence qemu_rdma_register_and_get_keys() Date: Thu, 28 Sep 2023 15:20:16 +0200 Message-ID: <20230928132019.2544702-51-armbru@redhat.com> In-Reply-To: <20230928132019.2544702-1-armbru@redhat.com> References: <20230928132019.2544702-1-armbru@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 3.1 on 10.11.54.1 Received-SPF: pass client-ip=170.10.129.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 12 X-Spam_score: 1.2 X-Spam_bar: + X-Spam_report: (1.2 / 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, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Functions that use an Error **errp parameter to return errors should not also report them to the user, because reporting is the caller's job. When the caller does, the error is reported twice. When it doesn't (because it recovered from the error), there is no error to report, i.e. the report is bogus. qemu_rdma_write_one() violates this principle: it reports errors to stderr via qemu_rdma_register_and_get_keys(). I elected not to investigate how callers handle the error, i.e. precise impact is not known. Clean this up: silence qemu_rdma_register_and_get_keys(). I believe the caller's error reports suffice. If they don't, we need to convert to Error instead. Signed-off-by: Markus Armbruster Reviewed-by: Li Zhijian --- migration/rdma.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/migration/rdma.c b/migration/rdma.c index 6c63f9c269..4e4d818460 100644 --- a/migration/rdma.c +++ b/migration/rdma.c @@ -1325,15 +1325,6 @@ static int qemu_rdma_register_and_get_keys(RDMAContext *rdma, } } if (!block->pmr[chunk]) { - perror("Failed to register chunk!"); - fprintf(stderr, "Chunk details: block: %d chunk index %d" - " start %" PRIuPTR " end %" PRIuPTR - " host %" PRIuPTR - " local %" PRIuPTR " registrations: %d\n", - block->index, chunk, (uintptr_t)chunk_start, - (uintptr_t)chunk_end, host_addr, - (uintptr_t)block->local_host_addr, - rdma->total_registrations); return -1; } rdma->total_registrations++;