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 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 27442CAC5A0 for ; Wed, 17 Sep 2025 11:55:00 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uyqiV-0003gQ-KL; Wed, 17 Sep 2025 07:52:57 -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 1uyqi1-00035Y-PX for qemu-devel@nongnu.org; Wed, 17 Sep 2025 07:52:31 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uyqhw-0003ki-BH for qemu-devel@nongnu.org; Wed, 17 Sep 2025 07:52:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1758109938; 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=ri5RghWLVXRz9tcDloYR8x0uesVdTFc/iLex6qYjpT4=; b=BLOzno7EGikzd1ULTjqSN8Tx4l4nf/ygjmhZJwqeNhdRi+A3hrshT+4xD1wOnuN6+RfYna sKIWS6ohP7hdtEEzKd7qhHn9AB8VXDvZd7pC080ZLqHVFB8qDn1hHSy7DrJk1jU7MJXyYN VI+GnNQOcdOOv8DleunD8m3oc34uxd0= Received: from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-16-PT1b_-4oP4yswLPBixSJcQ-1; Wed, 17 Sep 2025 07:52:14 -0400 X-MC-Unique: PT1b_-4oP4yswLPBixSJcQ-1 X-Mimecast-MFC-AGG-ID: PT1b_-4oP4yswLPBixSJcQ_1758109933 Received: from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id BB1481956046; Wed, 17 Sep 2025 11:52:13 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.45.242.9]) by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 6F1231800577; Wed, 17 Sep 2025 11:52:13 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 5418321E677A; Wed, 17 Sep 2025 13:52:07 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Cc: odaki@rsg.ci.i.u-tokyo.ac.jp, marcandre.lureau@redhat.com, berrange@redhat.com Subject: [PATCH v2 08/12] util/oslib-win32: Do not treat null @errp as &error_warn Date: Wed, 17 Sep 2025 13:52:03 +0200 Message-ID: <20250917115207.1730186-9-armbru@redhat.com> In-Reply-To: <20250917115207.1730186-1-armbru@redhat.com> References: <20250917115207.1730186-1-armbru@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 Received-SPF: pass client-ip=170.10.133.124; envelope-from=armbru@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_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-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 qemu_socket_select() and its wrapper qemu_socket_unselect() treat a null @errp as &error_warn. This is wildly inappropriate. A caller passing null @errp specifies that errors are to be ignored. If warnings are wanted, the caller must pass &error_warn. Change callers to do that, and drop the inappropriate treatment of null @errp. This assumes that warnings are wanted. I'm not familiar with the calling code, so I can't say whether it will work when the socket is invalid, or WSAEventSelect() fails. If it doesn't, then this should be an error instead of a warning. Invalid socket might even be a programming error. These warnings were introduced in commit f5fd677ae7cf (win32/socket: introduce qemu_socket_select() helper). I considered reverting to silence, but Daniel Berrangé asked for the warnings to be preserved. Cc: Marc-André Lureau Signed-off-by: Markus Armbruster --- io/channel-socket.c | 4 ++-- io/channel-watch.c | 2 +- util/aio-win32.c | 2 +- util/oslib-win32.c | 7 ++----- 4 files changed, 6 insertions(+), 9 deletions(-) diff --git a/io/channel-socket.c b/io/channel-socket.c index 3b7ca924ff..56ef353cd3 100644 --- a/io/channel-socket.c +++ b/io/channel-socket.c @@ -454,7 +454,7 @@ static void qio_channel_socket_finalize(Object *obj) } } #ifdef WIN32 - qemu_socket_unselect(ioc->fd, NULL); + qemu_socket_unselect(ioc->fd, &error_warn); #endif close(ioc->fd); ioc->fd = -1; @@ -890,7 +890,7 @@ qio_channel_socket_close(QIOChannel *ioc, if (sioc->fd != -1) { #ifdef WIN32 - qemu_socket_unselect(sioc->fd, NULL); + qemu_socket_unselect(sioc->fd, &error_warn); #endif if (qio_channel_has_feature(ioc, QIO_CHANNEL_FEATURE_LISTEN)) { socket_listen_cleanup(sioc->fd, errp); diff --git a/io/channel-watch.c b/io/channel-watch.c index 64b486e378..ec76bd1ec6 100644 --- a/io/channel-watch.c +++ b/io/channel-watch.c @@ -283,7 +283,7 @@ GSource *qio_channel_create_socket_watch(QIOChannel *ioc, qemu_socket_select(sockfd, ioc->event, FD_READ | FD_ACCEPT | FD_CLOSE | - FD_CONNECT | FD_WRITE | FD_OOB, NULL); + FD_CONNECT | FD_WRITE | FD_OOB, &error_warn); source = g_source_new(&qio_channel_socket_source_funcs, sizeof(QIOChannelSocketSource)); diff --git a/util/aio-win32.c b/util/aio-win32.c index 6583d5c5f3..b125924433 100644 --- a/util/aio-win32.c +++ b/util/aio-win32.c @@ -121,7 +121,7 @@ void aio_set_fd_handler(AioContext *ctx, QLIST_INSERT_HEAD_RCU(&ctx->aio_handlers, node, node); event = event_notifier_get_handle(&ctx->notifier); - qemu_socket_select(fd, event, bitmask, NULL); + qemu_socket_select(fd, event, bitmask, &error_warn); } if (old_node) { aio_remove_fd_handler(ctx, old_node); diff --git a/util/oslib-win32.c b/util/oslib-win32.c index b7351634ec..df118b164e 100644 --- a/util/oslib-win32.c +++ b/util/oslib-win32.c @@ -180,7 +180,8 @@ static int socket_error(void) void qemu_socket_set_block(int fd) { unsigned long opt = 0; - qemu_socket_unselect(fd, NULL); + + qemu_socket_unselect(fd, &error_warn); ioctlsocket(fd, FIONBIO, &opt); } @@ -296,10 +297,6 @@ bool qemu_socket_select(int sockfd, WSAEVENT hEventObject, { SOCKET s = _get_osfhandle(sockfd); - if (errp == NULL) { - errp = &error_warn; - } - if (s == INVALID_SOCKET) { error_setg(errp, "invalid socket fd=%d", sockfd); return false; -- 2.49.0