[Intel-wired-lan] [PATCH S40 07/15] ice: Fix corner case when switching from IEEE to CEE

Tony Nguyen anthony.l.nguyen at intel.com
Thu Feb 27 18:14:57 UTC 2020

From: Avinash JD <avinash.dayanand at intel.com>

While testing DCB for a corner case in which mode is switched from IEEE to
CEE and pfc_ena bitmask unchanged then DCBX mode doesn't get updated.

This is happening because the function ice_dcb_get_mode() is called
in a "no change detected block" instead of "change detected block".

Signed-off-by: Avinash JD <avinash.dayanand at intel.com>
Signed-off-by: Scott Register <scottx.register at intel.com>
 drivers/net/ethernet/intel/ice/ice_dcb_lib.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_dcb_lib.c b/drivers/net/ethernet/intel/ice/ice_dcb_lib.c
index 49e05f8ad93e..f9145a471f4d 100644
--- a/drivers/net/ethernet/intel/ice/ice_dcb_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_dcb_lib.c
@@ -873,10 +873,11 @@ ice_dcb_process_lldp_set_mib_change(struct ice_pf *pf,
 	/* No change detected in DCBX configs */
 	if (!memcmp(&tmp_dcbx_cfg, &pi->local_dcbx_cfg, sizeof(tmp_dcbx_cfg))) {
 		dev_dbg(dev, "No change detected in DCBX configuration.\n");
-		pf->dcbx_cap = ice_dcb_get_mode(pi, false);
 		goto out;
+	pf->dcbx_cap = ice_dcb_get_mode(pi, false);
 	need_reconfig = ice_dcb_need_recfg(pf, &tmp_dcbx_cfg,
 	ice_dcbnl_flush_apps(pf, &tmp_dcbx_cfg, &pi->local_dcbx_cfg);

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