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GET /api/patches/2227453/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 2227453,
    "url": "http://patchwork.ozlabs.org/api/patches/2227453/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260423191958.1440-19-farosas@suse.de/",
    "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": "<20260423191958.1440-19-farosas@suse.de>",
    "list_archive_url": null,
    "date": "2026-04-23T19:19:32",
    "name": "[PULL,18/43] hw/s390x/css: drop use of .err_hint for vmstate",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "8a2f44f0063650d9e89c71c01ed0e1681795115a",
    "submitter": {
        "id": 85343,
        "url": "http://patchwork.ozlabs.org/api/people/85343/?format=api",
        "name": "Fabiano Rosas",
        "email": "farosas@suse.de"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260423191958.1440-19-farosas@suse.de/mbox/",
    "series": [
        {
            "id": 501236,
            "url": "http://patchwork.ozlabs.org/api/series/501236/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=501236",
            "date": "2026-04-23T19:19:14",
            "name": "[PULL,01/43] checkpatch: Allow spaces after all coroutine annotations",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/501236/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2227453/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2227453/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        ],
        "From": "Fabiano Rosas <farosas@suse.de>",
        "To": "qemu-devel@nongnu.org",
        "Cc": "Peter Xu <peterx@redhat.com>,\n Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>,\n Eric Farman <farman@linux.ibm.com>",
        "Subject": "[PULL 18/43] hw/s390x/css: drop use of .err_hint for vmstate",
        "Date": "Thu, 23 Apr 2026 16:19:32 -0300",
        "Message-ID": "<20260423191958.1440-19-farosas@suse.de>",
        "X-Mailer": "git-send-email 2.51.0",
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    },
    "content": "From: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>\n\nThat's the only usage through the whole base. Doesn't\nworth keeping the whole complexity. And 2.7 machines were\nlong ago.\n\nSigned-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>\nReviewed-by: Eric Farman <farman@linux.ibm.com>\nReviewed-by: Peter Xu <peterx@redhat.com>\nLink: https://lore.kernel.org/qemu-devel/20260304212303.667141-17-vsementsov@yandex-team.ru\nSigned-off-by: Fabiano Rosas <farosas@suse.de>\n---\n hw/s390x/css.c | 15 ++++++++-------\n 1 file changed, 8 insertions(+), 7 deletions(-)",
    "diff": "diff --git a/hw/s390x/css.c b/hw/s390x/css.c\nindex 04ce3178a0..df5f0bc27f 100644\n--- a/hw/s390x/css.c\n+++ b/hw/s390x/css.c\n@@ -192,10 +192,6 @@ static const VMStateDescription vmstate_schdev_orb = {\n static int subch_dev_post_load(void *opaque, int version_id);\n static int subch_dev_pre_save(void *opaque);\n \n-const char err_hint_devno[] = \"Devno mismatch, tried to load wrong section!\"\n-    \" Likely reason: some sequences of plug and unplug  can break\"\n-    \" migration for machine versions prior to  2.7 (known design flaw).\";\n-\n const VMStateDescription vmstate_subch_dev = {\n     .name = \"s390_subch_dev\",\n     .version_id = 1,\n@@ -203,10 +199,15 @@ const VMStateDescription vmstate_subch_dev = {\n     .post_load = subch_dev_post_load,\n     .pre_save = subch_dev_pre_save,\n     .fields = (const VMStateField[]) {\n-        VMSTATE_UINT8_EQUAL(cssid, SubchDev, \"Bug!\"),\n-        VMSTATE_UINT8_EQUAL(ssid, SubchDev, \"Bug!\"),\n+        VMSTATE_UINT8_EQUAL(cssid, SubchDev, NULL),\n+        VMSTATE_UINT8_EQUAL(ssid, SubchDev, NULL),\n         VMSTATE_UINT16(migrated_schid, SubchDev),\n-        VMSTATE_UINT16_EQUAL(devno, SubchDev, err_hint_devno),\n+        /*\n+         * If devno mismatch on target, it may be due to some\n+         * sequences of plug and unplug breaks migration for\n+         * machine versions prior to 2.7 (known design flaw).\n+         */\n+        VMSTATE_UINT16_EQUAL(devno, SubchDev, NULL),\n         VMSTATE_BOOL(thinint_active, SubchDev),\n         VMSTATE_STRUCT(curr_status, SubchDev, 0, vmstate_schib, SCHIB),\n         VMSTATE_UINT8_ARRAY(sense_data, SubchDev, 32),\n",
    "prefixes": [
        "PULL",
        "18/43"
    ]
}