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 15789C87FD2 for ; Fri, 8 Aug 2025 08:10:35 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ukI9W-00078D-AE; Fri, 08 Aug 2025 04:08:38 -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 1ukI9U-00073n-AN for qemu-devel@nongnu.org; Fri, 08 Aug 2025 04:08:36 -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 1ukI9R-0006Ta-Gr for qemu-devel@nongnu.org; Fri, 08 Aug 2025 04:08:36 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1754640512; 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=pgEpW0y9TI+gD23yhFgp5yoS/SwDLMATrdE13Y4CIb0=; b=LNjv31pF4zdcFkWFon0wz9Y+KZsW6yz8knVcmxhjNgJMSdA5SiUj1op5Ua9ipm0wteB4+l BElf0FXMygnqOTAwC2QUih41h3+t7FGFe5IXFTeY/1xq7X+KlhnB2daQ1cbM+W/mY/OT6a TigBC58zHwceA3xKaKxl4G5Fj+fesJ4= Received: from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-39-bOGkBJr-MqKtl8eCtM9gEg-1; Fri, 08 Aug 2025 04:08:31 -0400 X-MC-Unique: bOGkBJr-MqKtl8eCtM9gEg-1 X-Mimecast-MFC-AGG-ID: bOGkBJr-MqKtl8eCtM9gEg_1754640510 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (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-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 495A91800289; Fri, 8 Aug 2025 08:08:30 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.45.242.18]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 8D19019560B6; Fri, 8 Aug 2025 08:08:29 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id 72EEF21E66E0; Fri, 08 Aug 2025 10:08:23 +0200 (CEST) From: Markus Armbruster To: qemu-devel@nongnu.org Cc: odaki@rsg.ci.i.u-tokyo.ac.jp, marcandre.lureau@redhat.com Subject: [PATCH 12/12] error: Kill @error_warn Date: Fri, 8 Aug 2025 10:08:23 +0200 Message-ID: <20250808080823.2638861-13-armbru@redhat.com> In-Reply-To: <20250808080823.2638861-1-armbru@redhat.com> References: <20250808080823.2638861-1-armbru@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 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: -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_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_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 We added @error_warn some two years ago in commit 3ffef1a55ca (error: add global &error_warn destination). It has multiple issues: * error.h's big comment was not updated for it. * Function contracts were not updated for it. * ERRP_GUARD() is unaware of @error_warn, and fails to mask it from error_prepend() and such. These crash on @error_warn, as pointed out by Akihiko Odaki. All fixable. However, after more than two years, we had just of 15 uses, of which the last few patches removed eight as unclean or otherwise undesirable. I didn't look closely enough at the remaining seven to decide whether they are desirable or not. I don't think this feature earns its keep. Drop it. Thanks-to: Akihiko Odaki Signed-off-by: Markus Armbruster --- include/qapi/error.h | 6 ------ hw/display/virtio-gpu.c | 8 ++++++-- hw/net/virtio-net.c | 8 +++++++- tests/unit/test-error-report.c | 17 ----------------- ui/gtk.c | 6 +++++- util/error.c | 5 +---- 6 files changed, 19 insertions(+), 31 deletions(-) diff --git a/include/qapi/error.h b/include/qapi/error.h index 41e3816380..b16c6303f8 100644 --- a/include/qapi/error.h +++ b/include/qapi/error.h @@ -533,12 +533,6 @@ static inline void error_propagator_cleanup(ErrorPropagator *prop) G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(ErrorPropagator, error_propagator_cleanup); -/* - * Special error destination to warn on error. - * See error_setg() and error_propagate() for details. - */ -extern Error *error_warn; - /* * Special error destination to abort on error. * See error_setg() and error_propagate() for details. diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c index 0a1a625b0e..de35902213 100644 --- a/hw/display/virtio-gpu.c +++ b/hw/display/virtio-gpu.c @@ -242,6 +242,7 @@ static uint32_t calc_image_hostmem(pixman_format_code_t pformat, static void virtio_gpu_resource_create_2d(VirtIOGPU *g, struct virtio_gpu_ctrl_command *cmd) { + Error *err = NULL; pixman_format_code_t pformat; struct virtio_gpu_simple_resource *res; struct virtio_gpu_resource_create_2d c2d; @@ -293,7 +294,8 @@ static void virtio_gpu_resource_create_2d(VirtIOGPU *g, c2d.width, c2d.height, c2d.height ? res->hostmem / c2d.height : 0, - &error_warn)) { + &err)) { + warn_report_err(err); goto end; } } @@ -1282,6 +1284,7 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size, const VMStateField *field) { VirtIOGPU *g = opaque; + Error *err = NULL; struct virtio_gpu_simple_resource *res; uint32_t resource_id, pformat; int i; @@ -1317,7 +1320,8 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size, res->width, res->height, res->height ? res->hostmem / res->height : 0, - &error_warn)) { + &err)) { + warn_report_err(err); g_free(res); return -EINVAL; } diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 6b5b5dace3..7848e26278 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -1289,6 +1289,8 @@ exit: static bool virtio_net_load_ebpf(VirtIONet *n, Error **errp) { + Error *err = NULL; + if (!virtio_net_attach_ebpf_to_backend(n->nic, -1)) { return true; } @@ -1306,7 +1308,11 @@ static bool virtio_net_load_ebpf(VirtIONet *n, Error **errp) return virtio_net_load_ebpf_fds(n, errp); } - ebpf_rss_load(&n->ebpf_rss, &error_warn); + ebpf_rss_load(&n->ebpf_rss, &err); + /* Beware, ebpf_rss_load() can return false with @err unset */ + if (err) { + warn_report_err(err); + } return true; } diff --git a/tests/unit/test-error-report.c b/tests/unit/test-error-report.c index 54319c86c9..0cbde3c4cf 100644 --- a/tests/unit/test-error-report.c +++ b/tests/unit/test-error-report.c @@ -104,22 +104,6 @@ test_error_report_timestamp(void) "); } -static void -test_error_warn(void) -{ - if (g_test_subprocess()) { - error_setg(&error_warn, "Testing &error_warn"); - return; - } - - g_test_trap_subprocess(NULL, 0, 0); - g_test_trap_assert_passed(); - g_test_trap_assert_stderr("\ -test-error-report: warning: Testing &error_warn*\ -"); -} - - int main(int argc, char *argv[]) { @@ -133,7 +117,6 @@ main(int argc, char *argv[]) g_test_add_func("/error-report/glog", test_error_report_glog); g_test_add_func("/error-report/once", test_error_report_once); g_test_add_func("/error-report/timestamp", test_error_report_timestamp); - g_test_add_func("/error-report/warn", test_error_warn); return g_test_run(); } diff --git a/ui/gtk.c b/ui/gtk.c index e91d093a49..9a08cadc88 100644 --- a/ui/gtk.c +++ b/ui/gtk.c @@ -1181,6 +1181,7 @@ static gboolean gd_touch_event(GtkWidget *widget, GdkEventTouch *touch, void *opaque) { VirtualConsole *vc = opaque; + Error *err = NULL; uint64_t num_slot = GPOINTER_TO_UINT(touch->sequence); int type = -1; @@ -1203,7 +1204,10 @@ static gboolean gd_touch_event(GtkWidget *widget, GdkEventTouch *touch, console_handle_touch_event(vc->gfx.dcl.con, touch_slots, num_slot, surface_width(vc->gfx.ds), surface_height(vc->gfx.ds), touch->x, - touch->y, type, &error_warn); + touch->y, type, &err); + if (err) { + warn_report_err(err); + } return TRUE; } diff --git a/util/error.c b/util/error.c index daea2142f3..0ae08225c0 100644 --- a/util/error.c +++ b/util/error.c @@ -19,7 +19,6 @@ Error *error_abort; Error *error_fatal; -Error *error_warn; static void error_handle(Error **errp, Error *err) { @@ -41,9 +40,7 @@ static void error_handle(Error **errp, Error *err) error_report_err(err); exit(1); } - if (errp == &error_warn) { - warn_report_err(err); - } else if (errp && !*errp) { + if (errp && !*errp) { *errp = err; } else { error_free(err); -- 2.49.0