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GET /api/patches/2196871/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
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{
    "id": 2196871,
    "url": "http://patchwork.ozlabs.org/api/patches/2196871/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260216-audio-v1-74-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-v1-74-e676662e4514@redhat.com>",
    "list_archive_url": null,
    "date": "2026-02-16T11:16:03",
    "name": "[74/85] audio: replace ldebug with trace events",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "5a0a465eacf555a103d6b46e9e317ce2c5d4c936",
    "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-v1-74-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/2196871/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2196871/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        "From": "=?utf-8?q?Marc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>",
        "Date": "Mon, 16 Feb 2026 12:16:03 +0100",
        "Subject": "[PATCH 74/85] audio: replace ldebug with trace events",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain; charset=\"utf-8\"",
        "Content-Transfer-Encoding": "8bit",
        "Message-Id": "<20260216-audio-v1-74-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>",
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    },
    "content": "Replace the ldebug macro calls with proper trace events:\n- audio_get_avail: traces available samples in capture stream\n- audio_open_out/audio_open_in: traces stream open parameters\n\nThis provides structured tracing that can be enabled at runtime\nwithout requiring debug builds.\n\nSigned-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>\nReviewed-by: Mark Cave-Ayland <mark.caveayland@nutanix.com>\n---\n audio/audio_template.h  | 7 +++++--\n audio/audio-mixeng-be.c | 6 +-----\n audio/trace-events      | 7 +++++++\n 3 files changed, 13 insertions(+), 7 deletions(-)",
    "diff": "diff --git a/audio/audio_template.h b/audio/audio_template.h\nindex 3da91a4782c..c47a2f202f0 100644\n--- a/audio/audio_template.h\n+++ b/audio/audio_template.h\n@@ -507,8 +507,11 @@ static SW *glue(audio_mixeng_backend_open_, TYPE) (\n     k = AUDIO_MIXENG_BACKEND_GET_CLASS(s);\n     pdo = glue(audio_get_pdo_, TYPE)(s->dev);\n \n-    ldebug (\"open %s, freq %d, nchannels %d, fmt %d\\n\",\n-            name, as->freq, as->nchannels, as->fmt);\n+#ifdef DAC\n+    trace_audio_open_out(name, as->freq, as->nchannels, as->fmt);\n+#else\n+    trace_audio_open_in(name, as->freq, as->nchannels, as->fmt);\n+#endif\n \n     if (audio_bug(__func__, audio_validate_settings(as))) {\n         audio_print_settings (as);\ndiff --git a/audio/audio-mixeng-be.c b/audio/audio-mixeng-be.c\nindex d05202aabae..84e4d136de3 100644\n--- a/audio/audio-mixeng-be.c\n+++ b/audio/audio-mixeng-be.c\n@@ -881,11 +881,7 @@ static size_t audio_get_avail(SWVoiceIn *sw)\n         return 0;\n     }\n \n-    ldebug (\n-        \"%s: get_avail live %zu frontend frames %u\\n\",\n-        SW_NAME (sw),\n-        live, st_rate_frames_out(sw->rate, live)\n-        );\n+    trace_audio_get_avail(SW_NAME(sw), live, st_rate_frames_out(sw->rate, live));\n \n     return live;\n }\ndiff --git a/audio/trace-events b/audio/trace-events\nindex f33be2dd8e3..4749c54fc04 100644\n--- a/audio/trace-events\n+++ b/audio/trace-events\n@@ -58,3 +58,10 @@ audio_be_set_active_out(void *sw, bool on) \"sw=%p, on=%d\"\n audio_timer_start(int interval) \"interval %d ms\"\n audio_timer_stop(void) \"\"\n audio_timer_delayed(int interval) \"interval %d ms\"\n+\n+# audio-mixeng-be.c\n+audio_get_avail(const char *name, size_t live, uint32_t frontend_frames) \"%s: get_avail live %zu frontend frames %u\"\n+\n+# audio_template.h\n+audio_open_out(const char *name, int freq, int nchannels, int fmt) \"open %s, freq %d, nchannels %d, fmt %d\"\n+audio_open_in(const char *name, int freq, int nchannels, int fmt) \"open %s, freq %d, nchannels %d, fmt %d\"\n",
    "prefixes": [
        "74/85"
    ]
}