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GET /api/patches/2196863/?format=api
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{
    "id": 2196863,
    "url": "http://patchwork.ozlabs.org/api/patches/2196863/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260216-audio-v1-59-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-v1-59-e676662e4514@redhat.com>",
    "list_archive_url": null,
    "date": "2026-02-16T11:15:48",
    "name": "[59/85] audio/alsa: replace custom logging with error_report and trace events",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "0c837e872a7b1ed8edae23104d3a0c0aab743f0c",
    "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-v1-59-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/2196863/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2196863/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>",
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        "From": "=?utf-8?q?Marc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>",
        "Date": "Mon, 16 Feb 2026 12:15:48 +0100",
        "Subject": "[PATCH 59/85] audio/alsa: replace custom logging with error_report\n and trace events",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain; charset=\"utf-8\"",
        "Content-Transfer-Encoding": "8bit",
        "Message-Id": "<20260216-audio-v1-59-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": "The ALSA audio backend uses its own logging infrastructure (AUD_log,\nAUD_vlog, dolog, ldebug) and a custom alsa_dump_info() debug helper.\nThis approach is inconsistent with the rest of QEMU and makes the\noutput harder to filter and configure.\n\nReplace the custom logging with standard QEMU error reporting:\n- Use error_report() / error_printf() for errors\n- Use warn_report() for non-fatal warnings (invalid formats,\n  rejected parameters, unexpected states)\n- Convert ldebug() calls and alsa_dump_info() to trace events\n\nRemove DEBUG_ALSA and AUDIO_CAP macros which are no longer needed.\n\nSigned-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>\nReviewed-by: Mark Cave-Ayland <mark.caveayland@nutanix.com>\n---\n audio/alsaaudio.c  | 169 +++++++++++++++++++++--------------------------------\n audio/trace-events |   5 ++\n 2 files changed, 72 insertions(+), 102 deletions(-)",
    "diff": "diff --git a/audio/alsaaudio.c b/audio/alsaaudio.c\nindex 8f226b42612..889240ad0c7 100644\n--- a/audio/alsaaudio.c\n+++ b/audio/alsaaudio.c\n@@ -26,17 +26,15 @@\n #include <alsa/asoundlib.h>\n #include \"qemu/main-loop.h\"\n #include \"qemu/module.h\"\n+#include \"qemu/error-report.h\"\n #include \"qemu/audio.h\"\n #include \"qom/object.h\"\n #include \"trace.h\"\n \n #pragma GCC diagnostic ignored \"-Waddress\"\n \n-#define AUDIO_CAP \"alsa\"\n #include \"audio_int.h\"\n \n-#define DEBUG_ALSA 0\n-\n #define TYPE_AUDIO_ALSA \"audio-alsa\"\n OBJECT_DECLARE_SIMPLE_TYPE(AudioALSA, AUDIO_ALSA)\n \n@@ -81,33 +79,29 @@ struct alsa_params_obt {\n     snd_pcm_uframes_t samples;\n };\n \n-static void G_GNUC_PRINTF (2, 3) alsa_logerr (int err, const char *fmt, ...)\n+static void G_GNUC_PRINTF(2, 3) alsa_logerr(int err, const char *fmt, ...)\n {\n     va_list ap;\n \n-    va_start (ap, fmt);\n-    AUD_vlog (AUDIO_CAP, fmt, ap);\n-    va_end (ap);\n-\n-    AUD_log (AUDIO_CAP, \"Reason: %s\\n\", snd_strerror (err));\n+    error_printf(\"alsa: \");\n+    va_start(ap, fmt);\n+    error_vprintf(fmt, ap);\n+    va_end(ap);\n+    error_printf(\" Reason: %s\", snd_strerror(err));\n+    error_printf(\"\\n\");\n }\n \n-static void G_GNUC_PRINTF (3, 4) alsa_logerr2 (\n-    int err,\n-    const char *typ,\n-    const char *fmt,\n-    ...\n-    )\n+static void G_GNUC_PRINTF(3, 4) alsa_logerr2(int err, const char *typ,\n+                                             const char *fmt, ...)\n {\n     va_list ap;\n \n-    AUD_log (AUDIO_CAP, \"Could not initialize %s\\n\", typ);\n-\n-    va_start (ap, fmt);\n-    AUD_vlog (AUDIO_CAP, fmt, ap);\n-    va_end (ap);\n-\n-    AUD_log (AUDIO_CAP, \"Reason: %s\\n\", snd_strerror (err));\n+    error_printf(\"alsa: Could not initialize %s:\", typ);\n+    va_start(ap, fmt);\n+    error_vprintf(fmt, ap);\n+    va_end(ap);\n+    error_printf(\" Reason: %s\", snd_strerror(err));\n+    error_printf(\"\\n\");\n }\n \n static void alsa_fini_poll (struct pollhlp *hlp)\n@@ -130,7 +124,7 @@ static void alsa_anal_close1 (snd_pcm_t **handlep)\n {\n     int err = snd_pcm_close (*handlep);\n     if (err) {\n-        alsa_logerr (err, \"Failed to close PCM handle %p\\n\", *handlep);\n+        alsa_logerr(err, \"Failed to close PCM handle %p\", *handlep);\n     }\n     *handlep = NULL;\n }\n@@ -145,7 +139,7 @@ static int alsa_recover (snd_pcm_t *handle)\n {\n     int err = snd_pcm_prepare (handle);\n     if (err < 0) {\n-        alsa_logerr (err, \"Failed to prepare handle %p\\n\", handle);\n+        alsa_logerr(err, \"Failed to prepare handle %p\", handle);\n         return -1;\n     }\n     return 0;\n@@ -155,7 +149,7 @@ static int alsa_resume (snd_pcm_t *handle)\n {\n     int err = snd_pcm_resume (handle);\n     if (err < 0) {\n-        alsa_logerr (err, \"Failed to resume handle %p\\n\", handle);\n+        alsa_logerr(err, \"Failed to resume handle %p\", handle);\n         return -1;\n     }\n     return 0;\n@@ -170,7 +164,7 @@ static void alsa_poll_handler (void *opaque)\n \n     count = poll (hlp->pfds, hlp->count, 0);\n     if (count < 0) {\n-        dolog (\"alsa_poll_handler: poll %s\\n\", strerror (errno));\n+        warn_report(\"alsa_poll_handler: poll %s\", strerror(errno));\n         return;\n     }\n \n@@ -183,7 +177,7 @@ static void alsa_poll_handler (void *opaque)\n     err = snd_pcm_poll_descriptors_revents (hlp->handle, hlp->pfds,\n                                             hlp->count, &revents);\n     if (err < 0) {\n-        alsa_logerr (err, \"snd_pcm_poll_descriptors_revents\");\n+        alsa_logerr(err, \"snd_pcm_poll_descriptors_revents\");\n         return;\n     }\n \n@@ -215,7 +209,7 @@ static void alsa_poll_handler (void *opaque)\n         break;\n \n     default:\n-        dolog (\"Unexpected state %d\\n\", state);\n+        warn_report(\"alsa: Unexpected state %d\", state);\n     }\n }\n \n@@ -226,8 +220,8 @@ static int alsa_poll_helper (snd_pcm_t *handle, struct pollhlp *hlp, int mask)\n \n     count = snd_pcm_poll_descriptors_count (handle);\n     if (count <= 0) {\n-        dolog (\"Could not initialize poll mode\\n\"\n-               \"Invalid number of poll descriptors %d\\n\", count);\n+        warn_report(\"alsa: Could not initialize poll mode: \"\n+                    \"Invalid number of poll descriptors %d\", count);\n         return -1;\n     }\n \n@@ -235,8 +229,7 @@ static int alsa_poll_helper (snd_pcm_t *handle, struct pollhlp *hlp, int mask)\n \n     err = snd_pcm_poll_descriptors (handle, pfds, count);\n     if (err < 0) {\n-        alsa_logerr (err, \"Could not initialize poll mode\\n\"\n-                     \"Could not obtain poll descriptors\\n\");\n+        alsa_logerr(err, \"Could not initialize poll mode: Could not obtain poll descriptors\");\n         g_free (pfds);\n         return -1;\n     }\n@@ -298,10 +291,7 @@ static snd_pcm_format_t aud_to_alsafmt(AudioFormat fmt, bool big_endian)\n         return big_endian ? SND_PCM_FORMAT_FLOAT_BE : SND_PCM_FORMAT_FLOAT_LE;\n \n     default:\n-        dolog (\"Internal logic error: Bad audio format %d\\n\", fmt);\n-#ifdef DEBUG_AUDIO\n-        abort ();\n-#endif\n+        warn_report(\"alsa: Internal logic error: Bad audio format %d\", fmt);\n         return SND_PCM_FORMAT_U8;\n     }\n }\n@@ -371,29 +361,13 @@ static int alsa_to_audfmt (snd_pcm_format_t alsafmt, AudioFormat *fmt,\n         break;\n \n     default:\n-        dolog (\"Unrecognized audio format %d\\n\", alsafmt);\n+        warn_report(\"alsa: Unrecognized audio format %d\", alsafmt);\n         return -1;\n     }\n \n     return 0;\n }\n \n-static void alsa_dump_info (struct alsa_params_req *req,\n-                            struct alsa_params_obt *obt,\n-                            snd_pcm_format_t obtfmt,\n-                            AudiodevAlsaPerDirectionOptions *apdo)\n-{\n-    dolog(\"parameter | requested value | obtained value\\n\");\n-    dolog(\"format    |      %10d |     %10d\\n\", req->fmt, obtfmt);\n-    dolog(\"channels  |      %10d |     %10d\\n\",\n-          req->nchannels, obt->nchannels);\n-    dolog(\"frequency |      %10d |     %10d\\n\", req->freq, obt->freq);\n-    dolog(\"============================================\\n\");\n-    dolog(\"requested: buffer len %\" PRId32 \" period len %\" PRId32 \"\\n\",\n-          apdo->buffer_length, apdo->period_length);\n-    dolog(\"obtained: samples %ld\\n\", obt->samples);\n-}\n-\n static void alsa_set_threshold (snd_pcm_t *handle, snd_pcm_uframes_t threshold)\n {\n     int err;\n@@ -403,23 +377,22 @@ static void alsa_set_threshold (snd_pcm_t *handle, snd_pcm_uframes_t threshold)\n \n     err = snd_pcm_sw_params_current (handle, sw_params);\n     if (err < 0) {\n-        dolog (\"Could not fully initialize DAC\\n\");\n-        alsa_logerr (err, \"Failed to get current software parameters\\n\");\n+        error_report(\"alsa: Could not fully initialize DAC\");\n+        alsa_logerr(err, \"Failed to get current software parameters\");\n         return;\n     }\n \n     err = snd_pcm_sw_params_set_start_threshold (handle, sw_params, threshold);\n     if (err < 0) {\n-        dolog (\"Could not fully initialize DAC\\n\");\n-        alsa_logerr (err, \"Failed to set software threshold to %ld\\n\",\n-                     threshold);\n+        error_report(\"alsa: Could not fully initialize DAC\");\n+        alsa_logerr(err, \"Failed to set software threshold to %ld\", threshold);\n         return;\n     }\n \n     err = snd_pcm_sw_params (handle, sw_params);\n     if (err < 0) {\n-        dolog (\"Could not fully initialize DAC\\n\");\n-        alsa_logerr (err, \"Failed to set software parameters\\n\");\n+        error_report(\"alsa: Could not fully initialize DAC\");\n+        alsa_logerr(err, \"Failed to set software parameters\");\n         return;\n     }\n }\n@@ -451,13 +424,13 @@ static int alsa_open(bool in, struct alsa_params_req *req,\n         SND_PCM_NONBLOCK\n         );\n     if (err < 0) {\n-        alsa_logerr2 (err, typ, \"Failed to open `%s':\\n\", pcm_name);\n+        alsa_logerr2(err, typ, \"Failed to open `%s'\", pcm_name);\n         return -1;\n     }\n \n     err = snd_pcm_hw_params_any (handle, hw_params);\n     if (err < 0) {\n-        alsa_logerr2 (err, typ, \"Failed to initialize hardware parameters\\n\");\n+        alsa_logerr2(err, typ, \"Failed to initialize hardware parameters\");\n         goto err;\n     }\n \n@@ -467,18 +440,18 @@ static int alsa_open(bool in, struct alsa_params_req *req,\n         SND_PCM_ACCESS_RW_INTERLEAVED\n         );\n     if (err < 0) {\n-        alsa_logerr2 (err, typ, \"Failed to set access type\\n\");\n+        alsa_logerr2(err, typ, \"Failed to set access type\");\n         goto err;\n     }\n \n     err = snd_pcm_hw_params_set_format (handle, hw_params, req->fmt);\n     if (err < 0) {\n-        alsa_logerr2 (err, typ, \"Failed to set format %d\\n\", req->fmt);\n+        alsa_logerr2(err, typ, \"Failed to set format %d\", req->fmt);\n     }\n \n     err = snd_pcm_hw_params_set_rate_near (handle, hw_params, &freq, 0);\n     if (err < 0) {\n-        alsa_logerr2 (err, typ, \"Failed to set frequency %d\\n\", req->freq);\n+        alsa_logerr2(err, typ, \"Failed to set frequency %d\", req->freq);\n         goto err;\n     }\n \n@@ -488,8 +461,7 @@ static int alsa_open(bool in, struct alsa_params_req *req,\n         &nchannels\n         );\n     if (err < 0) {\n-        alsa_logerr2 (err, typ, \"Failed to set number of channels %d\\n\",\n-                      req->nchannels);\n+        alsa_logerr2(err, typ, \"Failed to set number of channels %d\", req->nchannels);\n         goto err;\n     }\n \n@@ -501,14 +473,14 @@ static int alsa_open(bool in, struct alsa_params_req *req,\n             handle, hw_params, &btime, &dir);\n \n         if (err < 0) {\n-            alsa_logerr2(err, typ, \"Failed to set buffer time to %\" PRId32 \"\\n\",\n+            alsa_logerr2(err, typ, \"Failed to set buffer time to %\" PRId32,\n                          apdo->buffer_length);\n             goto err;\n         }\n \n         if (apdo->has_buffer_length && btime != apdo->buffer_length) {\n-            dolog(\"Requested buffer time %\" PRId32\n-                  \" was rejected, using %u\\n\", apdo->buffer_length, btime);\n+            warn_report(\"alsa: Requested buffer time %\" PRId32 \" was rejected, using %u\",\n+                        apdo->buffer_length, btime);\n         }\n     }\n \n@@ -520,43 +492,43 @@ static int alsa_open(bool in, struct alsa_params_req *req,\n                                                      &dir);\n \n         if (err < 0) {\n-            alsa_logerr2(err, typ, \"Failed to set period time to %\" PRId32 \"\\n\",\n+            alsa_logerr2(err, typ, \"Failed to set period time to %\" PRId32,\n                          apdo->period_length);\n             goto err;\n         }\n \n         if (apdo->has_period_length && ptime != apdo->period_length) {\n-            dolog(\"Requested period time %\" PRId32 \" was rejected, using %d\\n\",\n-                  apdo->period_length, ptime);\n+            warn_report(\"alsa: Requested period time %\" PRId32 \" was rejected, using %d\",\n+                        apdo->period_length, ptime);\n         }\n     }\n \n     err = snd_pcm_hw_params (handle, hw_params);\n     if (err < 0) {\n-        alsa_logerr2 (err, typ, \"Failed to apply audio parameters\\n\");\n+        alsa_logerr2(err, typ, \"Failed to apply audio parameters\");\n         goto err;\n     }\n \n     err = snd_pcm_hw_params_get_buffer_size (hw_params, &obt_buffer_size);\n     if (err < 0) {\n-        alsa_logerr2 (err, typ, \"Failed to get buffer size\\n\");\n+        alsa_logerr2(err, typ, \"Failed to get buffer size\");\n         goto err;\n     }\n \n     err = snd_pcm_hw_params_get_format (hw_params, &obtfmt);\n     if (err < 0) {\n-        alsa_logerr2 (err, typ, \"Failed to get format\\n\");\n+        alsa_logerr2(err, typ, \"Failed to get format\");\n         goto err;\n     }\n \n     if (alsa_to_audfmt (obtfmt, &obt->fmt, &obt->endianness)) {\n-        dolog (\"Invalid format was returned %d\\n\", obtfmt);\n+        error_report(\"alsa: Invalid format was returned %d\", obtfmt);\n         goto err;\n     }\n \n     err = snd_pcm_prepare (handle);\n     if (err < 0) {\n-        alsa_logerr2 (err, typ, \"Could not prepare handle %p\\n\", handle);\n+        alsa_logerr2(err, typ, \"Could not prepare handle %p\", handle);\n         goto err;\n     }\n \n@@ -574,11 +546,9 @@ static int alsa_open(bool in, struct alsa_params_req *req,\n \n     *handlep = handle;\n \n-    if (DEBUG_ALSA || obtfmt != req->fmt ||\n-        obt->nchannels != req->nchannels || obt->freq != req->freq) {\n-        dolog (\"Audio parameters for %s\\n\", typ);\n-        alsa_dump_info(req, obt, obtfmt, apdo);\n-    }\n+    trace_alsa_info_params(req->fmt, obtfmt, req->nchannels, obt->nchannels,\n+                           req->freq, obt->freq);\n+    trace_alsa_info_samples(apdo->buffer_length, apdo->period_length, obt->samples);\n \n     return 0;\n \n@@ -601,8 +571,7 @@ static size_t alsa_buffer_get_free(HWVoiceOut *hw)\n             }\n         }\n         if (avail < 0) {\n-            alsa_logerr(avail,\n-                        \"Could not obtain number of available frames\\n\");\n+            alsa_logerr(avail, \"Could not obtain number of available frames\");\n             avail = 0;\n         }\n     }\n@@ -643,8 +612,7 @@ static size_t alsa_write(HWVoiceOut *hw, void *buf, size_t len)\n \n             case -EPIPE:\n                 if (alsa_recover(alsa->handle)) {\n-                    alsa_logerr(written, \"Failed to write %zu frames\\n\",\n-                                len_frames);\n+                    alsa_logerr(written, \"Failed to write %zu frames\", len_frames);\n                     return pos;\n                 }\n                 trace_alsa_xrun_out();\n@@ -656,8 +624,7 @@ static size_t alsa_write(HWVoiceOut *hw, void *buf, size_t len)\n                  * recovery\n                  */\n                 if (alsa_resume(alsa->handle)) {\n-                    alsa_logerr(written, \"Failed to write %zu frames\\n\",\n-                                len_frames);\n+                    alsa_logerr(written, \"Failed to write %zu frames\", len_frames);\n                     return pos;\n                 }\n                 trace_alsa_resume_out();\n@@ -667,8 +634,7 @@ static size_t alsa_write(HWVoiceOut *hw, void *buf, size_t len)\n                 return pos;\n \n             default:\n-                alsa_logerr(written, \"Failed to write %zu frames from %p\\n\",\n-                            len, src);\n+                alsa_logerr(written, \"Failed to write %zu frames from %p\", len_frames, src);\n                 return pos;\n             }\n         }\n@@ -687,7 +653,7 @@ static void alsa_fini_out (HWVoiceOut *hw)\n {\n     ALSAVoiceOut *alsa = (ALSAVoiceOut *) hw;\n \n-    ldebug (\"alsa_fini\\n\");\n+    trace_alsa_fini_out();\n     alsa_anal_close (&alsa->handle, &alsa->pollhlp);\n }\n \n@@ -732,19 +698,19 @@ static int alsa_voice_ctl (snd_pcm_t *handle, const char *typ, int ctl)\n     if (ctl == VOICE_CTL_PAUSE) {\n         err = snd_pcm_drop (handle);\n         if (err < 0) {\n-            alsa_logerr (err, \"Could not stop %s\\n\", typ);\n+            alsa_logerr(err, \"Could not stop %s\", typ);\n             return -1;\n         }\n     } else {\n         err = snd_pcm_prepare (handle);\n         if (err < 0) {\n-            alsa_logerr (err, \"Could not prepare handle for %s\\n\", typ);\n+            alsa_logerr(err, \"Could not prepare handle for %s\", typ);\n             return -1;\n         }\n         if (ctl == VOICE_CTL_START) {\n             err = snd_pcm_start(handle);\n             if (err < 0) {\n-                alsa_logerr (err, \"Could not start handle for %s\\n\", typ);\n+                alsa_logerr(err, \"Could not start handle for %s\", typ);\n                 return -1;\n             }\n         }\n@@ -758,17 +724,17 @@ static void alsa_enable_out(HWVoiceOut *hw, bool enable)\n     ALSAVoiceOut *alsa = (ALSAVoiceOut *) hw;\n     AudiodevAlsaPerDirectionOptions *apdo = hw->s->dev->u.alsa.out;\n \n+    trace_alsa_enable_out(enable);\n+\n     if (enable) {\n         bool poll_mode = apdo->try_poll;\n \n-        ldebug(\"enabling voice\\n\");\n         if (poll_mode && alsa_poll_out(hw)) {\n             poll_mode = 0;\n         }\n         hw->poll_mode = poll_mode;\n         alsa_voice_ctl(alsa->handle, \"playback\", VOICE_CTL_PREPARE);\n     } else {\n-        ldebug(\"disabling voice\\n\");\n         if (hw->poll_mode) {\n             hw->poll_mode = 0;\n             alsa_fini_poll(&alsa->pollhlp);\n@@ -834,7 +800,7 @@ static size_t alsa_read(HWVoiceIn *hw, void *buf, size_t len)\n \n             case -EPIPE:\n                 if (alsa_recover(alsa->handle)) {\n-                    alsa_logerr(nread, \"Failed to read %zu frames\\n\", len);\n+                    alsa_logerr(nread, \"Failed to read %zu frames\", len);\n                     return pos;\n                 }\n                 trace_alsa_xrun_in();\n@@ -844,8 +810,7 @@ static size_t alsa_read(HWVoiceIn *hw, void *buf, size_t len)\n                 return pos;\n \n             default:\n-                alsa_logerr(nread, \"Failed to read %zu frames to %p\\n\",\n-                            len, dst);\n+                alsa_logerr(nread, \"Failed to read %zu frames to %p\", len, dst);\n                 return pos;\n             }\n         }\n@@ -862,10 +827,11 @@ static void alsa_enable_in(HWVoiceIn *hw, bool enable)\n     ALSAVoiceIn *alsa = (ALSAVoiceIn *) hw;\n     AudiodevAlsaPerDirectionOptions *apdo = hw->s->dev->u.alsa.in;\n \n+    trace_alsa_enable_in(enable);\n+\n     if (enable) {\n         bool poll_mode = apdo->try_poll;\n \n-        ldebug(\"enabling voice\\n\");\n         if (poll_mode && alsa_poll_in(hw)) {\n             poll_mode = 0;\n         }\n@@ -873,7 +839,6 @@ static void alsa_enable_in(HWVoiceIn *hw, bool enable)\n \n         alsa_voice_ctl(alsa->handle, \"capture\", VOICE_CTL_START);\n     } else {\n-        ldebug (\"disabling voice\\n\");\n         if (hw->poll_mode) {\n             hw->poll_mode = 0;\n             alsa_fini_poll(&alsa->pollhlp);\ndiff --git a/audio/trace-events b/audio/trace-events\nindex f7f639d9605..737e3e60694 100644\n--- a/audio/trace-events\n+++ b/audio/trace-events\n@@ -9,6 +9,11 @@ alsa_read_zero(long len) \"Failed to read %ld frames (read zero)\"\n alsa_xrun_out(void) \"Recovering from playback xrun\"\n alsa_xrun_in(void) \"Recovering from capture xrun\"\n alsa_resume_out(void) \"Resuming suspended output stream\"\n+alsa_info_params(int req_fmt, int obt_fmt, int req_channels, int obt_channels, int req_freq, int obt_freq) \"format %d->%d, channels %d->%d, frequency %d->%d\"\n+alsa_info_samples(int buffer_length, int period_length, long samples) \"requested: buffer len %d, period len %d; obtained: %ld samples\"\n+alsa_fini_out(void) \"\"\n+alsa_enable_out(bool enable) \"enable=%d\"\n+alsa_enable_in(bool enable) \"enable=%d\"\n \n # ossaudio.c\n oss_version(int version) \"OSS version = 0x%x\"\n",
    "prefixes": [
        "59/85"
    ]
}