The slave_open function is only called by ndo_open callback. This
callback is already protected to do a ip link set wpan0 up twice.
This patch removing also a unnecessary for each loop to find the right
entry which is already known.
Signed-off-by: Alexander Aring <alex.aring@xxxxxxxxx>
---
net/mac802154/iface.c | 13 -------------
1 file changed, 13 deletions(-)
diff --git a/net/mac802154/iface.c b/net/mac802154/iface.c
index ae774d3..ab23246 100644
--- a/net/mac802154/iface.c
+++ b/net/mac802154/iface.c
@@ -35,24 +35,11 @@
static int mac802154_slave_open(struct net_device *dev)
{
struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev);
- struct ieee802154_sub_if_data *subif;
struct ieee802154_local *local = sdata->local;
int res = 0;
ASSERT_RTNL();
- if (sdata->type == NL802154_IFTYPE_NODE) {
- mutex_lock(&sdata->local->iflist_mtx);
- list_for_each_entry(subif, &sdata->local->interfaces, list) {
- if (subif != sdata && subif->type == sdata->type &&
- subif->running) {
- mutex_unlock(&sdata->local->iflist_mtx);
- return -EBUSY;
- }
- }
- mutex_unlock(&sdata->local->iflist_mtx);
- }
-
mutex_lock(&sdata->local->iflist_mtx);
sdata->running = true;
mutex_unlock(&sdata->local->iflist_mtx);
--
2.0.3
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