[Intel-wired-lan] [PATCH net] iavf: Implement settime64 with -EOPNOTSUPP

[Michal Schmidt <mschmidt@redhat.com>]

ptp_clock_settime() assumes every ptp_clock has implemented settime64().
Stub it with -EOPNOTSUPP to prevent a NULL dereference.

The fix is similar to commit 329d050bbe63 ("gve: Implement settime64
with -EOPNOTSUPP").

Fixes: d734223b2f0d ("iavf: add initial framework for registering PTP clock")
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
---
 drivers/net/ethernet/intel/iavf/iavf_ptp.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_ptp.c b/drivers/net/ethernet/intel/iavf/iavf_ptp.c
index b4d5eda2e84f..9cbd8c154031 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_ptp.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_ptp.c
@@ -252,6 +252,12 @@ static int iavf_ptp_gettimex64(struct ptp_clock_info *info,
 	return iavf_read_phc_indirect(adapter, ts, sts);
 }
 
+static int iavf_ptp_settime64(struct ptp_clock_info *info,
+			      const struct timespec64 *ts)
+{
+	return -EOPNOTSUPP;
+}
+
 /**
  * iavf_ptp_cache_phc_time - Cache PHC time for performing timestamp extension
  * @adapter: private adapter structure
@@ -320,6 +326,7 @@ static int iavf_ptp_register_clock(struct iavf_adapter *adapter)
 		 KBUILD_MODNAME, dev_name(dev));
 	ptp_info->owner = THIS_MODULE;
 	ptp_info->gettimex64 = iavf_ptp_gettimex64;
+	ptp_info->settime64 = iavf_ptp_settime64;
 	ptp_info->do_aux_work = iavf_ptp_do_aux_work;
 
 	clock = ptp_clock_register(ptp_info, dev);
-- 
2.51.1