net: dev: Fix non-RCU based lower dev walker
netdev_walk_all_lower_dev is not properly walking the lower device
list. Commit 1a3f060c1a47 made netdev_walk_all_lower_dev similar
to netdev_walk_all_upper_dev_rcu and netdev_walk_all_lower_dev_rcu
but failed to update its netdev_next_lower_dev iterator. This patch
fixes that.
Fixes: 1a3f060c1a47 ("net: Introduce new api for walking upper and
lower devices")
Reported-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Tested-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/dev.c b/net/core/dev.c
index f55fb45..6aa43cd 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5400,12 +5400,12 @@
{
struct netdev_adjacent *lower;
- lower = list_entry(*iter, struct netdev_adjacent, list);
+ lower = list_entry((*iter)->next, struct netdev_adjacent, list);
if (&lower->list == &dev->adj_list.lower)
return NULL;
- *iter = lower->list.next;
+ *iter = &lower->list;
return lower->dev;
}