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GET /api/patches/2196264/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 2196264,
    "url": "http://patchwork.ozlabs.org/api/patches/2196264/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260213094938.4074478-10-marcandre.lureau@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": "<20260213094938.4074478-10-marcandre.lureau@redhat.com>",
    "list_archive_url": null,
    "date": "2026-02-13T09:49:28",
    "name": "[PULL,v2,09/15] chardev: introduce .chr_get_pty_name() handler",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "cc3ded82e20ef3e7e97923bc110feb883b49d4b1",
    "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/20260213094938.4074478-10-marcandre.lureau@redhat.com/mbox/",
    "series": [
        {
            "id": 492070,
            "url": "http://patchwork.ozlabs.org/api/series/492070/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=492070",
            "date": "2026-02-13T09:49:19",
            "name": "[PULL,v2,01/15] char-udp: Fix initial backend open status",
            "version": 2,
            "mbox": "http://patchwork.ozlabs.org/series/492070/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2196264/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2196264/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        "From": "marcandre.lureau@redhat.com",
        "To": "qemu-devel@nongnu.org",
        "Cc": "=?utf-8?q?Alex_Benn=C3=A9e?= <alex.bennee@linaro.org>,\n \"Edgar E. Iglesias\" <edgar.iglesias@gmail.com>, =?utf-8?q?Daniel_P=2E_Berra?=\n\t=?utf-8?q?ng=C3=A9?= <berrange@redhat.com>, Eric Blake <eblake@redhat.com>,\n Markus Armbruster <armbru@redhat.com>, Paul Durrant <paul@xen.org>,\n Anthony PERARD <anthony@xenproject.org>, =?utf-8?q?Philippe_Mathieu-Daud?=\n\t=?utf-8?q?=C3=A9?= <philmd@linaro.org>,\n Eduardo Habkost <eduardo@habkost.net>, Paolo Bonzini <pbonzini@redhat.com>,\n\t=?utf-8?q?Marc-Andr=C3=A9_Lureau?= <marcandre.lureau@redhat.com>,\n Stefano Stabellini <sstabellini@kernel.org>, xen-devel@lists.xenproject.org,\n Samuel Thibault <samuel.thibault@ens-lyon.org>,\n Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>",
        "Subject": "[PULL v2 09/15] chardev: introduce .chr_get_pty_name() handler",
        "Date": "Fri, 13 Feb 2026 10:49:28 +0100",
        "Message-ID": "<20260213094938.4074478-10-marcandre.lureau@redhat.com>",
        "In-Reply-To": "<20260213094938.4074478-1-marcandre.lureau@redhat.com>",
        "References": "<20260213094938.4074478-1-marcandre.lureau@redhat.com>",
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        "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org",
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    },
    "content": "From: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>\n\nCurrently we do two wrong things:\n\n1. Abuse s->filename to get pty_name from it\n\n2. Violate layering with help of CHARDEV_IS_PTY()\n\nLet's get rid of both, and introduce correct way to get pty name in\ngeneric code, if available.\n\nSigned-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>\nReviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>\nMessage-Id: <20260115144606.233252-9-vsementsov@yandex-team.ru>\n---\n include/chardev/char.h |  7 +++++--\n chardev/char-pty.c     |  7 +++++++\n chardev/char.c         | 19 +++++++++++++------\n hw/char/xen_console.c  |  7 ++++---\n 4 files changed, 29 insertions(+), 11 deletions(-)",
    "diff": "diff --git a/include/chardev/char.h b/include/chardev/char.h\nindex e1bf97222b8..ada5529fa6c 100644\n--- a/include/chardev/char.h\n+++ b/include/chardev/char.h\n@@ -247,8 +247,6 @@ OBJECT_DECLARE_TYPE(Chardev, ChardevClass, CHARDEV)\n \n #define CHARDEV_IS_RINGBUF(chr) \\\n     object_dynamic_cast(OBJECT(chr), TYPE_CHARDEV_RINGBUF)\n-#define CHARDEV_IS_PTY(chr) \\\n-    object_dynamic_cast(OBJECT(chr), TYPE_CHARDEV_PTY)\n \n struct ChardevClass {\n     ObjectClass parent_class;\n@@ -308,6 +306,9 @@ struct ChardevClass {\n     void (*chr_be_event)(Chardev *s, QEMUChrEvent event);\n \n     void (*chr_listener_cleanup)(Chardev *chr);\n+\n+    /* return PTY name if available */\n+    char *(*chr_get_pty_name)(Chardev *s);\n };\n \n Chardev *qemu_chardev_new(const char *id, const char *typename,\n@@ -322,4 +323,6 @@ GSource *qemu_chr_timeout_add_ms(Chardev *chr, guint ms,\n void suspend_mux_open(void);\n void resume_mux_open(void);\n \n+char *qemu_chr_get_pty_name(Chardev *chr);\n+\n #endif\ndiff --git a/chardev/char-pty.c b/chardev/char-pty.c\nindex a582aa7bc73..047aade09e5 100644\n--- a/chardev/char-pty.c\n+++ b/chardev/char-pty.c\n@@ -387,6 +387,12 @@ static void pty_chr_parse(QemuOpts *opts, ChardevBackend *backend, Error **errp)\n     pty->path = g_strdup(path);\n }\n \n+static char *pty_chr_get_pty_name(Chardev *chr)\n+{\n+    PtyChardev *s = PTY_CHARDEV(chr);\n+    return g_strdup(s->pty_name);\n+}\n+\n static void char_pty_class_init(ObjectClass *oc, const void *data)\n {\n     ChardevClass *cc = CHARDEV_CLASS(oc);\n@@ -396,6 +402,7 @@ static void char_pty_class_init(ObjectClass *oc, const void *data)\n     cc->chr_write = pty_chr_write;\n     cc->chr_update_read_handler = pty_chr_update_read_handler;\n     cc->chr_add_watch = pty_chr_add_watch;\n+    cc->chr_get_pty_name = pty_chr_get_pty_name;\n }\n \n static const TypeInfo char_pty_type_info = {\ndiff --git a/chardev/char.c b/chardev/char.c\nindex 44bfed36272..0dc792b88f7 100644\n--- a/chardev/char.c\n+++ b/chardev/char.c\n@@ -1090,9 +1090,7 @@ ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,\n     }\n \n     ret = g_new0(ChardevReturn, 1);\n-    if (CHARDEV_IS_PTY(chr)) {\n-        ret->pty = g_strdup(chr->filename + 4);\n-    }\n+    ret->pty = qemu_chr_get_pty_name(chr);\n \n     return ret;\n \n@@ -1101,6 +1099,17 @@ err:\n     return NULL;\n }\n \n+char *qemu_chr_get_pty_name(Chardev *chr)\n+{\n+    ChardevClass *cc = CHARDEV_GET_CLASS(chr);\n+\n+    if (cc->chr_get_pty_name) {\n+        return cc->chr_get_pty_name(chr);\n+    }\n+\n+    return NULL;\n+}\n+\n ChardevReturn *qmp_chardev_change(const char *id, ChardevBackend *backend,\n                                   Error **errp)\n {\n@@ -1192,9 +1201,7 @@ ChardevReturn *qmp_chardev_change(const char *id, ChardevBackend *backend,\n     object_unref(OBJECT(chr_new));\n \n     ret = g_new0(ChardevReturn, 1);\n-    if (CHARDEV_IS_PTY(chr_new)) {\n-        ret->pty = g_strdup(chr_new->filename + 4);\n-    }\n+    ret->pty = qemu_chr_get_pty_name(chr_new);\n \n     return ret;\n }\ndiff --git a/hw/char/xen_console.c b/hw/char/xen_console.c\nindex 8ee098d9ad4..bdeb76dc870 100644\n--- a/hw/char/xen_console.c\n+++ b/hw/char/xen_console.c\n@@ -418,6 +418,7 @@ static void xen_console_realize(XenDevice *xendev, Error **errp)\n     XenConsole *con = XEN_CONSOLE_DEVICE(xendev);\n     Chardev *cs = qemu_chr_fe_get_driver(&con->chr);\n     unsigned int u;\n+    g_autofree char *pty_name = NULL;\n \n     if (!cs) {\n         error_setg(errp, \"no backing character device\");\n@@ -450,9 +451,9 @@ static void xen_console_realize(XenDevice *xendev, Error **errp)\n \n     trace_xen_console_realize(con->dev, object_get_typename(OBJECT(cs)));\n \n-    if (CHARDEV_IS_PTY(cs)) {\n-        /* Strip the leading 'pty:' */\n-        xen_device_frontend_printf(xendev, \"tty\", \"%s\", cs->filename + 4);\n+    pty_name = qemu_chr_get_pty_name(cs);\n+    if (pty_name) {\n+        xen_device_frontend_printf(xendev, \"tty\", \"%s\", pty_name);\n     }\n \n     /* No normal PV driver initialization for the primary console under Xen */\n",
    "prefixes": [
        "PULL",
        "v2",
        "09/15"
    ]
}