[PATCH net-next 05/11] IB/ipoib: Flip to new dev walk API

[David Ahern]

Convert ipoib_get_net_dev_match_addr to the new upper device walk API.
This is just a code conversion; no functional change is intended.

Signed-off-by: David Ahern <d...@cumulusnetworks.com>
---
 drivers/infiniband/ulp/ipoib/ipoib_main.c | 37 +++++++++++++++++++++----------
 1 file changed, 25 insertions(+), 12 deletions(-)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c 
b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 5636fc3da6b8..624855ab7205 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -292,6 +292,25 @@ static struct net_device *ipoib_get_master_net_dev(struct 
net_device *dev)
        return dev;
 }
 
+struct ipoib_walk_data {
+       const struct sockaddr *addr;
+       struct net_device *result;
+};
+
+static int ipoib_upper_walk(struct net_device *upper, void *_data)
+{
+       struct ipoib_walk_data *data = (struct ipoib_walk_data *)_data;
+       int ret = 0;
+
+       if (ipoib_is_dev_match_addr_rcu(data->addr, upper)) {
+               dev_hold(upper);
+               data->result = upper;
+               ret = 1;
+       }
+
+       return ret;
+}
+
 /**
  * Find a net_device matching the given address, which is an upper device of
  * the given net_device.
@@ -304,27 +323,21 @@ static struct net_device *ipoib_get_master_net_dev(struct 
net_device *dev)
 static struct net_device *ipoib_get_net_dev_match_addr(
                const struct sockaddr *addr, struct net_device *dev)
 {
-       struct net_device *upper,
-                         *result = NULL;
-       struct list_head *iter;
+       struct ipoib_walk_data data = {
+               .addr = addr,
+       };
 
        rcu_read_lock();
        if (ipoib_is_dev_match_addr_rcu(addr, dev)) {
                dev_hold(dev);
-               result = dev;
+               data.result = dev;
                goto out;
        }
 
-       netdev_for_each_all_upper_dev_rcu(dev, upper, iter) {
-               if (ipoib_is_dev_match_addr_rcu(addr, upper)) {
-                       dev_hold(upper);
-                       result = upper;
-                       break;
-               }
-       }
+       netdev_walk_all_upper_dev_rcu(dev, ipoib_upper_walk, &data);
 out:
        rcu_read_unlock();
-       return result;
+       return data.result;
 }
 
 /* returns the number of IPoIB netdevs on top a given ipoib device matching a
-- 
2.1.4