[PATCH v5 11/17] net: sgi: ioc3-eth: no need to stop queue set_multicast_list

From: Thomas Bogendoerfer
Date: Mon Aug 19 2019 - 12:33:45 EST


netif_stop_queue()/netif_wake_qeue() aren't needed for changing
multicast filters. Use spinlocks instead for proper protection
of private struct.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@xxxxxxx>
---
drivers/net/ethernet/sgi/ioc3-eth.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c
index d862f28887f9..7f85a3bfef14 100644
--- a/drivers/net/ethernet/sgi/ioc3-eth.c
+++ b/drivers/net/ethernet/sgi/ioc3-eth.c
@@ -1542,8 +1542,7 @@ static void ioc3_set_multicast_list(struct net_device *dev)
struct netdev_hw_addr *ha;
u64 ehar = 0;

- netif_stop_queue(dev); /* Lock out others. */
-
+ spin_lock_irq(&ip->ioc3_lock);
if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
ip->emcr |= EMCR_PROMISC;
writel(ip->emcr, &regs->emcr);
@@ -1572,7 +1571,7 @@ static void ioc3_set_multicast_list(struct net_device *dev)
writel(ip->ehar_l, &regs->ehar_l);
}

- netif_wake_queue(dev); /* Let us get going again. */
+ spin_unlock_irq(&ip->ioc3_lock);
}

module_pci_driver(ioc3_driver);
--
2.13.7