octeontx2-pf: Unregister netdev at driver remove

[ Upstream commit ed543f5c6a988d8a863d2436794230cef2c82389 ]

Added unregister_netdev in the driver remove
function. Generally unregister_netdev is called
after disabling all the device interrupts but here
it is called before disabling device mailbox
interrupts. The reason behind this is VF needs
mailbox interrupt to communicate with its PF to
clean up its resources during otx2_stop.
otx2_stop disables packet I/O and queue interrupts
first and by using mailbox interrupt communicates
to PF to free VF resources. Hence this patch
calls unregister_device just before
disabling mailbox interrupts.

Fixes: 3184fb5ba96e ("octeontx2-vf: Virtual function driver support")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
index c1c263d1ac2ece56846a45c53a30cb8fdc908519..92a3db69a6cd65f2526ed93977924429498805b1 100644 (file)
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
@@ -618,6 +618,7 @@ static void otx2vf_remove(struct pci_dev *pdev)
        vf = netdev_priv(netdev);
 
        cancel_work_sync(&vf->reset_task);
+       unregister_netdev(netdev);
        otx2vf_disable_mbox_intr(vf);
 
        otx2_detach_resources(&vf->mbox);