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GET /api/patches/2191251/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 2191251,
    "url": "http://patchwork.ozlabs.org/api/patches/2191251/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260201141430.131063-1-kohei@enjuk.jp/",
    "project": {
        "id": 46,
        "url": "http://patchwork.ozlabs.org/api/projects/46/?format=api",
        "name": "Intel Wired Ethernet development",
        "link_name": "intel-wired-lan",
        "list_id": "intel-wired-lan.osuosl.org",
        "list_email": "intel-wired-lan@osuosl.org",
        "web_url": "",
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        "webscm_url": "",
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
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    "msgid": "<20260201141430.131063-1-kohei@enjuk.jp>",
    "list_archive_url": null,
    "date": "2026-02-01T14:14:00",
    "name": "[v1,iwl-net] ice: ptp: don't WARN when controlling PF is unavailable",
    "commit_ref": null,
    "pull_url": null,
    "state": "under-review",
    "archived": false,
    "hash": "5d82a80db2fc889f78435ed5102f92092451dca0",
    "submitter": {
        "id": 92459,
        "url": "http://patchwork.ozlabs.org/api/people/92459/?format=api",
        "name": "Kohei Enju",
        "email": "kohei@enjuk.jp"
    },
    "delegate": {
        "id": 109701,
        "url": "http://patchwork.ozlabs.org/api/users/109701/?format=api",
        "username": "anguy11",
        "first_name": "Anthony",
        "last_name": "Nguyen",
        "email": "anthony.l.nguyen@intel.com"
    },
    "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260201141430.131063-1-kohei@enjuk.jp/mbox/",
    "series": [
        {
            "id": 490523,
            "url": "http://patchwork.ozlabs.org/api/series/490523/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=490523",
            "date": "2026-02-01T14:14:00",
            "name": "[v1,iwl-net] ice: ptp: don't WARN when controlling PF is unavailable",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/490523/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/2191251/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2191251/checks/",
    "tags": {},
    "related": [],
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        "From": "Kohei Enju <kohei@enjuk.jp>",
        "To": "intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org",
        "Cc": "Tony Nguyen <anthony.l.nguyen@intel.com>,\n Przemek Kitszel <przemyslaw.kitszel@intel.com>,\n Andrew Lunn <andrew+netdev@lunn.ch>,\n \"David S. Miller\" <davem@davemloft.net>,\n Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>,\n Paolo Abeni <pabeni@redhat.com>,\n Richard Cochran <richardcochran@gmail.com>,\n Sergey Temerkhanov <sergey.temerkhanov@intel.com>,\n Simon Horman <horms@kernel.org>, kohei.enju@gmail.com,\n Kohei Enju <kohei@enjuk.jp>",
        "Date": "Sun,  1 Feb 2026 14:14:00 +0000",
        "Message-ID": "<20260201141430.131063-1-kohei@enjuk.jp>",
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        ],
        "Subject": "[Intel-wired-lan] [PATCH v1 iwl-net] ice: ptp: don't WARN when\n controlling PF is unavailable",
        "X-BeenThere": "intel-wired-lan@osuosl.org",
        "X-Mailman-Version": "2.1.30",
        "Precedence": "list",
        "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n <intel-wired-lan.osuosl.org>",
        "List-Unsubscribe": "<https://lists.osuosl.org/mailman/options/intel-wired-lan>,\n <mailto:intel-wired-lan-request@osuosl.org?subject=unsubscribe>",
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        "Errors-To": "intel-wired-lan-bounces@osuosl.org",
        "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>"
    },
    "content": "In VFIO passthrough setups, it is possible to pass through only a PF\nwhich doesn't own the source timer. In that case the PTP controlling PF\n(adapter->ctrl_pf) is never initialized in the VM, so ice_get_ctrl_ptp()\nreturns NULL and triggers WARN_ON() in ice_ptp_setup_pf().\n\nSince this is an expected behavior in that configuration, replace\nWARN_ON() with an informational message and return -EOPNOTSUPP.\n\nFixes: e800654e85b5 (\"ice: Use ice_adapter for PTP shared data instead of auxdev\")\nSigned-off-by: Kohei Enju <kohei@enjuk.jp>\n---\n drivers/net/ethernet/intel/ice/ice_ptp.c | 8 +++++++-\n 1 file changed, 7 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c\nindex 272683001476..082313023024 100644\n--- a/drivers/net/ethernet/intel/ice/ice_ptp.c\n+++ b/drivers/net/ethernet/intel/ice/ice_ptp.c\n@@ -3048,7 +3048,13 @@ static int ice_ptp_setup_pf(struct ice_pf *pf)\n \tstruct ice_ptp *ctrl_ptp = ice_get_ctrl_ptp(pf);\n \tstruct ice_ptp *ptp = &pf->ptp;\n \n-\tif (WARN_ON(!ctrl_ptp) || pf->hw.mac_type == ICE_MAC_UNKNOWN)\n+\tif (!ctrl_ptp) {\n+\t\tdev_info(ice_pf_to_dev(pf),\n+\t\t\t \"PTP unavailable: no controlling PF\\n\");\n+\t\treturn -EOPNOTSUPP;\n+\t}\n+\n+\tif (pf->hw.mac_type == ICE_MAC_UNKNOWN)\n \t\treturn -ENODEV;\n \n \tINIT_LIST_HEAD(&ptp->port.list_node);\n",
    "prefixes": [
        "v1",
        "iwl-net"
    ]
}