From acb288e8047b7569fbc9af6fa6e9405315345103 Mon Sep 17 00:00:00 2001
From: Yangbo Lu <yangbo.lu@nxp.com>
Date: Wed, 30 Jun 2021 16:11:55 +0800
Subject: ptp: add kernel API ptp_get_vclocks_index()

Add kernel API ptp_get_vclocks_index() to get all ptp
vclocks index on pclock.

This is preparation for supporting ptp vclocks info query
through ethtool.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/ptp/ptp_private.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'drivers/ptp/ptp_private.h')

diff --git a/drivers/ptp/ptp_private.h b/drivers/ptp/ptp_private.h
index f75fadd9b244..dba6be477067 100644
--- a/drivers/ptp/ptp_private.h
+++ b/drivers/ptp/ptp_private.h
@@ -96,6 +96,8 @@ static inline bool ptp_vclock_in_use(struct ptp_clock *ptp)
 	return in_use;
 }
 
+extern struct class *ptp_class;
+
 /*
  * see ptp_chardev.c
  */
-- 
cgit v1.2.3