From 02a9fbfc878ec3e4c17b11d6ac41dfe86667b732 Mon Sep 17 00:00:00 2001 From: Scott Feldman Date: Fri, 12 Jun 2015 21:35:47 -0700 Subject: [PATCH] rocker: mark neigh update event processing as 'no wait' Neigh update event handler runs in a context where we can't sleep, so mark processing in driver with ROCKER_OP_FLAG_NOWAIT. NOWAIT will use GFP_ATOMIC for allocations and will queue cmds to the device's cmd ring but will not wait (sleep) for cmd response back from device. Signed-off-by: Scott Feldman Signed-off-by: David S. Miller --- drivers/net/ethernet/rocker/rocker.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c index c1910c1..1995b59 100644 --- a/drivers/net/ethernet/rocker/rocker.c +++ b/drivers/net/ethernet/rocker/rocker.c @@ -5251,7 +5251,8 @@ static struct notifier_block rocker_netdevice_nb __read_mostly = { static int rocker_neigh_update(struct net_device *dev, struct neighbour *n) { struct rocker_port *rocker_port = netdev_priv(dev); - int flags = (n->nud_state & NUD_VALID) ? 0 : ROCKER_OP_FLAG_REMOVE; + int flags = (n->nud_state & NUD_VALID ? 0 : ROCKER_OP_FLAG_REMOVE) | + ROCKER_OP_FLAG_NOWAIT; __be32 ip_addr = *(__be32 *)n->primary_key; return rocker_port_ipv4_neigh(rocker_port, SWITCHDEV_TRANS_NONE, -- 2.7.4