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-rw-r--r--drivers/ptp/ptp_private.h2
1 files changed, 2 insertions, 0 deletions
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
*/