netdev - [PATCH] ptp: Set lookup cookie when creating a PTP PPS source.

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Date:   Mon, 28 Jun 2021 11:25:33 -0700
From:   Jonathan Lemon <jonathan.lemon@...il.com>
To:     <netdev@...r.kernel.org>, <richardcochran@...il.com>
CC:     <kernel-team@...com>
Subject: [PATCH] ptp: Set lookup cookie when creating a PTP PPS source.

When creating a PTP device, the configuration block allows
creation of an associated PPS device.  However, there isn't
any way to associate the two devices after creation.

Set the PPS cookie, so pps_lookup_dev(ptp) performs correctly.

Signed-off-by: Jonathan Lemon <jonathan.lemon@...il.com>
---
 drivers/ptp/ptp_clock.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c
index c176fa82df85..45429853d60f 100644
--- a/drivers/ptp/ptp_clock.c
+++ b/drivers/ptp/ptp_clock.c
@@ -240,6 +240,7 @@ struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info,
 			pr_err("failed to create ptp aux_worker %d\n", err);
 			goto kworker_err;
 		}
+		ptp->pps_source->lookup_cookie = ptp;
 	}

 	err = ptp_populate_pin_groups(ptp);
-- 
2.30.2