From: Subbaraya Sundeep sbhatta@marvell.com
[ Upstream commit dfcf6355f53b1796cf7fd50a4f27b18ee6a3497a ]
When PF sending link status messages to VF, it is possible that by the time link_event_task work function is executed VF might have brought down. Hence before sending VF link status message check whether VF is up to receive it.
Fixes: ad513ed938c9 ("octeontx2-vf: Link event notification support") Signed-off-by: Subbaraya Sundeep sbhatta@marvell.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c index a6c5f6a2dab07..7e2c30927c312 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c @@ -3062,6 +3062,9 @@ static void otx2_vf_link_event_task(struct work_struct *work) vf_idx = config - config->pf->vf_configs; pf = config->pf;
+ if (config->intf_down) + return; + mutex_lock(&pf->mbox.lock);
dwork = &config->link_event_work;