bonding: Bonding driver does not consider the gso_max_size/gso_max_segs setting of...

[ Upstream commit 0e376bd0b791ac6ac6bdb051492df0769c840848 ]

Patch sets the lowest gso_max_size and gso_max_segs values of the slave devices during enslave and detach.

Signed-off-by: Sarveshwar Bandi <sarveshwar.bandi@emulex.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 6c284d12e65404166d088e1a20d9f53728e82edf..202ae3440d939d38f643fb113f0d4baf42393de0 100644 (file)
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1366,6 +1366,8 @@ static void bond_compute_features(struct bonding *bond)
        struct net_device *bond_dev = bond->dev;
        u32 vlan_features = BOND_VLAN_FEATURES;
        unsigned short max_hard_header_len = ETH_HLEN;
+       unsigned int gso_max_size = GSO_MAX_SIZE;
+       u16 gso_max_segs = GSO_MAX_SEGS;
        int i;
 
        read_lock(&bond->lock);
@@ -1379,11 +1381,16 @@ static void bond_compute_features(struct bonding *bond)
 
                if (slave->dev->hard_header_len > max_hard_header_len)
                        max_hard_header_len = slave->dev->hard_header_len;
+
+               gso_max_size = min(gso_max_size, slave->dev->gso_max_size);
+               gso_max_segs = min(gso_max_segs, slave->dev->gso_max_segs);
        }
 
 done:
        bond_dev->vlan_features = vlan_features;
        bond_dev->hard_header_len = max_hard_header_len;
+       bond_dev->gso_max_segs = gso_max_segs;
+       netif_set_gso_max_size(bond_dev, gso_max_size);
 
        read_unlock(&bond->lock);