[PATCH net v3] Revert ncsi: Propagate carrier gain/loss events to the NCSI controller

Johnathan Mantey
2023-11-13T16:31:26Z

This reverts commit 3780bb29311eccb7a1c9641032a112eed237f7e3.

The cited commit introduced unwanted behavior.

The intent for the commit was to be able to detect carrier loss/gain
for just the NIC connected to the BMC. The unwanted effect is a
carrier loss for auxiliary paths also causes the BMC to lose
carrier. The BMC never regains carrier despite the secondary NIC
regaining a link.

This change, when merged, needs to be backported to stable kernels.
5.4-stable, 5.10-stable, 5.15-stable, 6.1-stable, 6.5-stable

Fixes: 3780bb29311e ("ncsi: Propagate carrier gain/loss events to the NCSI controller")
CC: stable@vger.kernel.org
Signed-off-by: Johnathan Mantey <johnathanx.mantey@intel.com>
---
net/ncsi/ncsi-aen.c | 5 -----
1 file changed, 5 deletions(-)

diff --git a/net/ncsi/ncsi-aen.c b/net/ncsi/ncsi-aen.c
index f8854bff286c..62fb1031763d 100644
--- a/net/ncsi/ncsi-aen.c
+++ b/net/ncsi/ncsi-aen.c
@@ -89,11 +89,6 @@ static int ncsi_aen_handler_lsc(struct ncsi_dev_priv *ndp,
if ((had_link == has_link) || chained)
return 0;

- if (had_link)
- netif_carrier_off(ndp->ndev.dev);
- else
- netif_carrier_on(ndp->ndev.dev);
-
if (!ndp->multi_package && !nc->package->multi_channel) {
if (had_link) {
ndp->flags |= NCSI_DEV_RESHUFFLE;
--
2.41.0