[PATCH 152/222] bonding: Bonding driver does not consider the gso_max_size/gso_max_segs setting of slave devices.
From: Herton Ronaldo Krzesinski
Date: Wed Jan 16 2013 - 11:07:06 EST
3.5.7.3 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Sarveshwar Bandi <sarveshwar.bandi@xxxxxxxxxx>
commit 0e376bd0b791ac6ac6bdb051492df0769c840848 upstream.
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@xxxxxxxxxx>
Acked-by: Eric Dumazet <edumazet@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
[ herton: adjust context ]
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@xxxxxxxxxxxxx>
---
drivers/net/bonding/bond_main.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 2ee7699..2466847 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1383,6 +1383,8 @@ static void bond_compute_features(struct bonding *bond)
struct net_device *bond_dev = bond->dev;
netdev_features_t 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);
@@ -1396,11 +1398,16 @@ 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);
--
1.7.9.5
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