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GET /api/patches/2196853/?format=api
{ "id": 2196853, "url": "http://patchwork.ozlabs.org/api/patches/2196853/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260216-audio-v1-27-e676662e4514@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260216-audio-v1-27-e676662e4514@redhat.com>", "list_archive_url": null, "date": "2026-02-16T11:15:16", "name": "[27/85] audio: drop audio driver registration", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "93a80f99f809c335872e93c2e539c863c4407b3f", "submitter": { "id": 66774, "url": "http://patchwork.ozlabs.org/api/people/66774/?format=api", "name": "Marc-André Lureau", "email": "marcandre.lureau@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260216-audio-v1-27-e676662e4514@redhat.com/mbox/", "series": [ { "id": 492294, "url": "http://patchwork.ozlabs.org/api/series/492294/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=492294", "date": "2026-02-16T11:14:52", "name": "audio: cleanups & add a manual test", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/492294/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2196853/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2196853/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=K1UBGNUM;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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Mon, 16 Feb 2026 06:17:03 -0500", "from mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com\n (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by\n relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3,\n cipher=TLS_AES_256_GCM_SHA384) id us-mta-348-dgIVvDxQONKLDdsJPAnelA-1; Mon,\n 16 Feb 2026 06:16:55 -0500", "from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com\n (mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.111])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n (No client certificate requested)\n by mx-prod-mc-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS\n id 6AFFD180057E; Mon, 16 Feb 2026 11:16:53 +0000 (UTC)", "from localhost (unknown [10.45.242.26])\n by mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP\n id 8890718003F5; Mon, 16 Feb 2026 11:16:52 +0000 (UTC)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1771240617;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=3cfhdOzknAF9YO6j0QekhEL3lL807Fp77kyJj7wmWFs=;\n b=K1UBGNUMMJaQpsj8z61J6/KbzA5OtGmRtWXYOmezW33uA9tddcE7sAd1sSV8igu9Toh3he\n lGf8LLJPg1cJ6JQSI1REEbaQLZWJrsAO/nQy0T51C+btzNwGxpizOdM98YNj9C9R+Eayst\n yxsRrVmSkyrBWgHlHX5VarkY0hp0c5o=", "X-MC-Unique": "dgIVvDxQONKLDdsJPAnelA-1", "X-Mimecast-MFC-AGG-ID": "dgIVvDxQONKLDdsJPAnelA_1771240613", "From": "=?utf-8?q?Marc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>", "Date": "Mon, 16 Feb 2026 12:15:16 +0100", "Subject": "[PATCH 27/85] audio: drop audio driver registration", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "8bit", "Message-Id": "<20260216-audio-v1-27-e676662e4514@redhat.com>", "References": "<20260216-audio-v1-0-e676662e4514@redhat.com>", "In-Reply-To": "<20260216-audio-v1-0-e676662e4514@redhat.com>", "To": "qemu-devel@nongnu.org", "Cc": "Gerd Hoffmann <kraxel@redhat.com>, Eduardo Habkost <eduardo@habkost.net>,\n Paolo Bonzini <pbonzini@redhat.com>,\n =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= <berrange@redhat.com>, =?utf-8?q?Phil?=\n\t=?utf-8?q?ippe_Mathieu-Daud=C3=A9?= <philmd@linaro.org>,\n John Snow <jsnow@redhat.com>, Cleber Rosa <crosa@redhat.com>,\n Christian Schoenebeck <qemu_oss@crudebyte.com>,\n Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>,\n Thomas Huth <huth@tuxfamily.org>, Alexandre Ratchov <alex@caoua.org>,\n\t=?utf-8?q?Alex_Benn=C3=A9e?= <alex.bennee@linaro.org>,\n Laurent Vivier <laurent@vivier.eu>, \"Michael S. Tsirkin\" <mst@redhat.com>,\n Manos Pitsidianakis <manos.pitsidianakis@linaro.org>,\n Alistair Francis <alistair@alistair23.me>,\n \"Edgar E. Iglesias\" <edgar.iglesias@gmail.com>,\n Peter Maydell <peter.maydell@linaro.org>, qemu-arm@nongnu.org, =?utf-8?q?M?=\n\t=?utf-8?q?arc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>,\n Mark Cave-Ayland <mark.caveayland@nutanix.com>", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=8757;\n i=marcandre.lureau@redhat.com; h=from:subject:message-id;\n bh=azrrD2hSQuvPvUHhEWUcKcpNNPTuuiUl6Tzb3Fh3kL4=;\n b=owEBbQKS/ZANAwAKAdro4Ql1lpzlAcsmYgBpkvxPrPWbFGVfXMLpQzg2rNHWeAk8rDnBWOLKJ\n MI7Pwx3sR+JAjMEAAEKAB0WIQSHqb2TP4fGBtJ29i3a6OEJdZac5QUCaZL8TwAKCRDa6OEJdZac\n 5UzND/9jBaKwuuWl3L5VRzoK3j1iU17UCb6YvE4L4/UcsDkDtZ4/86Jw+3bAZIkLwXE0J3fJOob\n 0dPXDwTECFZWh4kEVTenIYuRqBXUHaKahAcBxX6YE8h0As8qiC/gFrebUptUP96T7TzplBhexvJ\n 3A4V1XymaIpzTzFCQudAgEO3wbjPK9FsvD+7k2svnkddvAm+pzHbF+JHKcCqIARZjTsxtYGna/M\n 3C+s2x79E5rSYRWNy4L01KfzzOeyoyxnts1LHvrYtgMZTtCpA/zo7DTnJKyAjdxAU+uqJODFUbe\n mI6Ykhd8b5mJqqn17RKf713KekVxXiXxWDpyoumaqK3QGDR3iVXZsld94lXFwjDBwHXIs6hxc6H\n 5jnOg9f/GbdVaCLuWQqnw7l/ZSyLoLt7zkY3HUeRBvGHlBYsQEA5A0kFoouB0FXCI8D0uneoIVG\n /HxerlCKAYbP4OU8yONP83PIQoKrRm6/raRgR62yBniJ7znOj1MEVKD5omK1YEChapSTybdLJ2l\n IhFANRG23ZIUIr3sCsRZMxz/3l1I1aIIRQkM12vt9UB/ANWzcBri7q6dmmqT5EvvNXWjWsPseKy\n ztnr0WY1Y+ooVmMG/BH87UobAPL5+6uLiQ7/1VQu5UUCYIYz4GjBHB4OfJffLLW8AST6zCSqNTo\n yyBypsdfZ0RTFxg==", "X-Developer-Key": "i=marcandre.lureau@redhat.com; a=openpgp;\n fpr=87A9BD933F87C606D276F62DDAE8E10975969CE5", "X-Scanned-By": "MIMEDefang 3.4.1 on 10.30.177.111", "Received-SPF": "pass client-ip=170.10.133.124;\n envelope-from=marcandre.lureau@redhat.com;\n 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,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001,\n RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-0.001,\n 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": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "module_object_class_by_name() handles loading the module providing the\nrequested object.\n\nSigned-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>\nReviewed-by: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>\nReviewed-by: Mark Cave-Ayland <mark.caveayland@nutanix.com>\n---\n audio/audio_int.h | 2 --\n audio/alsaaudio.c | 1 -\n audio/audio.c | 43 +++++++++++++------------------------------\n audio/dbusaudio.c | 1 -\n audio/dsoundaudio.c | 1 -\n audio/jackaudio.c | 1 -\n audio/noaudio.c | 1 -\n audio/ossaudio.c | 1 -\n audio/paaudio.c | 1 -\n audio/pwaudio.c | 1 -\n audio/sdlaudio.c | 1 -\n audio/sndioaudio.c | 1 -\n audio/spiceaudio.c | 1 -\n audio/wavaudio.c | 1 -\n audio/coreaudio.m | 1 -\n 15 files changed, 13 insertions(+), 45 deletions(-)", "diff": "diff --git a/audio/audio_int.h b/audio/audio_int.h\nindex 0b97c8edee3..446ba1d52c6 100644\n--- a/audio/audio_int.h\n+++ b/audio/audio_int.h\n@@ -259,8 +259,6 @@ extern const struct mixeng_volume nominal_volume;\n \n extern const char *audio_prio_list[];\n \n-void audio_driver_register(audio_driver *drv);\n-\n void audio_pcm_init_info (struct audio_pcm_info *info, const struct audsettings *as);\n void audio_pcm_info_clear_buf (struct audio_pcm_info *info, void *buf, int len);\n \ndiff --git a/audio/alsaaudio.c b/audio/alsaaudio.c\nindex ecc22d7c8f9..7200777ad82 100644\n--- a/audio/alsaaudio.c\n+++ b/audio/alsaaudio.c\n@@ -972,7 +972,6 @@ static const TypeInfo audio_alsa_info = {\n \n static void register_audio_alsa(void)\n {\n- audio_driver_register(&alsa_audio_driver);\n type_register_static(&audio_alsa_info);\n }\n type_init(register_audio_alsa);\ndiff --git a/audio/audio.c b/audio/audio.c\nindex 72949fe27f5..16edc57e5f0 100644\n--- a/audio/audio.c\n+++ b/audio/audio.c\n@@ -68,40 +68,21 @@ const char *audio_prio_list[] = {\n NULL\n };\n \n-static QLIST_HEAD(, audio_driver) audio_drivers;\n static AudiodevListHead audiodevs =\n QSIMPLEQ_HEAD_INITIALIZER(audiodevs);\n static AudiodevListHead default_audiodevs =\n QSIMPLEQ_HEAD_INITIALIZER(default_audiodevs);\n \n-\n-void audio_driver_register(audio_driver *drv)\n-{\n- QLIST_INSERT_HEAD(&audio_drivers, drv, next);\n-}\n-\n-static audio_driver *audio_driver_lookup(const char *name)\n+static AudioBackendClass *audio_be_class_by_name(const char *name)\n {\n- struct audio_driver *d;\n- Error *local_err = NULL;\n- int rv;\n+ g_autofree char *tname = g_strconcat(\"audio-\", name, NULL);\n+ ObjectClass *oc = module_object_class_by_name(tname);\n \n- QLIST_FOREACH(d, &audio_drivers, next) {\n- if (strcmp(name, d->name) == 0) {\n- return d;\n- }\n- }\n- rv = audio_module_load(name, &local_err);\n- if (rv > 0) {\n- QLIST_FOREACH(d, &audio_drivers, next) {\n- if (strcmp(name, d->name) == 0) {\n- return d;\n- }\n- }\n- } else if (rv < 0) {\n- error_report_err(local_err);\n+ if (!oc || !object_class_dynamic_cast(oc, TYPE_AUDIO_BACKEND)) {\n+ return NULL;\n }\n- return NULL;\n+\n+ return AUDIO_BACKEND_CLASS(oc);\n }\n \n static AudioBackend *default_audio_be;\n@@ -1764,7 +1745,7 @@ static const VMStateDescription vmstate_audio = {\n void audio_create_default_audiodevs(void)\n {\n for (int i = 0; audio_prio_list[i]; i++) {\n- if (audio_driver_lookup(audio_prio_list[i])) {\n+ if (audio_be_class_by_name(audio_prio_list[i]) != NULL) {\n QDict *dict = qdict_new();\n Audiodev *dev = NULL;\n Visitor *v;\n@@ -2129,9 +2110,11 @@ void audio_help(void)\n printf(\"Available audio drivers:\\n\");\n \n for (i = 0; i < AUDIODEV_DRIVER__MAX; i++) {\n- audio_driver *driver = audio_driver_lookup(AudiodevDriver_str(i));\n- if (driver) {\n- printf(\"%s\\n\", driver->name);\n+ const char *name = AudiodevDriver_str(i);\n+ AudioBackendClass *be = audio_be_class_by_name(name);\n+\n+ if (be) {\n+ printf(\"%s\\n\", name);\n }\n }\n }\ndiff --git a/audio/dbusaudio.c b/audio/dbusaudio.c\nindex 5a5752b8f33..48c9078d80e 100644\n--- a/audio/dbusaudio.c\n+++ b/audio/dbusaudio.c\n@@ -738,7 +738,6 @@ static const TypeInfo audio_dbus_info = {\n \n static void register_audio_dbus(void)\n {\n- audio_driver_register(&dbus_audio_driver);\n type_register_static(&audio_dbus_info);\n }\n type_init(register_audio_dbus);\ndiff --git a/audio/dsoundaudio.c b/audio/dsoundaudio.c\nindex 91c83dec742..6d213899660 100644\n--- a/audio/dsoundaudio.c\n+++ b/audio/dsoundaudio.c\n@@ -720,7 +720,6 @@ static const TypeInfo audio_dsound_info = {\n \n static void register_audio_dsound(void)\n {\n- audio_driver_register(&dsound_audio_driver);\n type_register_static(&audio_dsound_info);\n }\n type_init(register_audio_dsound);\ndiff --git a/audio/jackaudio.c b/audio/jackaudio.c\nindex 7ed2e91fcc8..bfce4cb0b4c 100644\n--- a/audio/jackaudio.c\n+++ b/audio/jackaudio.c\n@@ -718,7 +718,6 @@ static const TypeInfo audio_jack_info = {\n static void register_audio_jack(void)\n {\n qemu_mutex_init(&qjack_shutdown_lock);\n- audio_driver_register(&jack_driver);\n type_register_static(&audio_jack_info);\n #if !defined(WIN32) && defined(CONFIG_PTHREAD_SETNAME_NP_W_TID)\n jack_set_thread_creator(qjack_thread_creator);\ndiff --git a/audio/noaudio.c b/audio/noaudio.c\nindex b3305480013..8b5ebd71bf6 100644\n--- a/audio/noaudio.c\n+++ b/audio/noaudio.c\n@@ -164,7 +164,6 @@ static const TypeInfo audio_none_info = {\n \n static void register_audio_none(void)\n {\n- audio_driver_register(&no_audio_driver);\n type_register_static(&audio_none_info);\n }\n type_init(register_audio_none);\ndiff --git a/audio/ossaudio.c b/audio/ossaudio.c\nindex 9697f4a0beb..b8e26b17ed7 100644\n--- a/audio/ossaudio.c\n+++ b/audio/ossaudio.c\n@@ -798,7 +798,6 @@ static const TypeInfo audio_oss_info = {\n \n static void register_audio_oss(void)\n {\n- audio_driver_register(&oss_audio_driver);\n type_register_static(&audio_oss_info);\n }\n type_init(register_audio_oss);\ndiff --git a/audio/paaudio.c b/audio/paaudio.c\nindex 707a6d2fb23..adaeb2af807 100644\n--- a/audio/paaudio.c\n+++ b/audio/paaudio.c\n@@ -957,7 +957,6 @@ static const TypeInfo audio_pa_info = {\n \n static void register_audio_pa(void)\n {\n- audio_driver_register(&pa_audio_driver);\n type_register_static(&audio_pa_info);\n }\n type_init(register_audio_pa);\ndiff --git a/audio/pwaudio.c b/audio/pwaudio.c\nindex 31f8899d1ed..facd166052c 100644\n--- a/audio/pwaudio.c\n+++ b/audio/pwaudio.c\n@@ -874,7 +874,6 @@ static const TypeInfo audio_pw_info = {\n static void\n register_audio_pw(void)\n {\n- audio_driver_register(&pw_audio_driver);\n type_register_static(&audio_pw_info);\n }\n \ndiff --git a/audio/sdlaudio.c b/audio/sdlaudio.c\nindex 5841e131cc0..c00f1366d17 100644\n--- a/audio/sdlaudio.c\n+++ b/audio/sdlaudio.c\n@@ -517,7 +517,6 @@ static const TypeInfo audio_sdl_info = {\n \n static void register_audio_sdl(void)\n {\n- audio_driver_register(&sdl_audio_driver);\n type_register_static(&audio_sdl_info);\n }\n type_init(register_audio_sdl);\ndiff --git a/audio/sndioaudio.c b/audio/sndioaudio.c\nindex 7f388b498f6..c8310b1fa37 100644\n--- a/audio/sndioaudio.c\n+++ b/audio/sndioaudio.c\n@@ -581,7 +581,6 @@ static const TypeInfo audio_sndio_info = {\n \n static void register_audio_sndio(void)\n {\n- audio_driver_register(&sndio_audio_driver);\n type_register_static(&audio_sndio_info);\n }\n \ndiff --git a/audio/spiceaudio.c b/audio/spiceaudio.c\nindex d0bcc0836ad..d1bb318b6b7 100644\n--- a/audio/spiceaudio.c\n+++ b/audio/spiceaudio.c\n@@ -351,7 +351,6 @@ static const TypeInfo audio_spice_info = {\n \n static void register_audio_spice(void)\n {\n- audio_driver_register(&spice_audio_driver);\n type_register_static(&audio_spice_info);\n }\n type_init(register_audio_spice);\ndiff --git a/audio/wavaudio.c b/audio/wavaudio.c\nindex 00cf110ecd7..12d4108ffad 100644\n--- a/audio/wavaudio.c\n+++ b/audio/wavaudio.c\n@@ -240,7 +240,6 @@ static const TypeInfo audio_wav_info = {\n \n static void register_audio_wav(void)\n {\n- audio_driver_register(&wav_audio_driver);\n type_register_static(&audio_wav_info);\n }\n type_init(register_audio_wav);\ndiff --git a/audio/coreaudio.m b/audio/coreaudio.m\nindex 61333e9f2f9..5efd16df7c4 100644\n--- a/audio/coreaudio.m\n+++ b/audio/coreaudio.m\n@@ -699,7 +699,6 @@ static void coreaudio_audio_fini (void *opaque)\n \n static void register_audio_coreaudio(void)\n {\n- audio_driver_register(&coreaudio_audio_driver);\n type_register_static(&audio_coreaudio_info);\n }\n type_init(register_audio_coreaudio);\n", "prefixes": [ "27/85" ] }