Expand comment explaining MAC address selection for replicated IGMP
frames transmitted in bonding mode 1 (active-backup). Also, a small
whitespace cleanup.
Signed-off-by: John W. Linville <[email protected]>
---
drivers/net/bonding/bond_main.c | 10 +++++++---
1 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4242,8 +4242,8 @@ out:
}
static void bond_activebackup_xmit_copy(struct sk_buff *skb,
- struct bonding *bond,
- struct slave *slave)
+ struct bonding *bond,
+ struct slave *slave)
{
struct sk_buff *skb2 = skb_copy(skb, GFP_ATOMIC);
struct ethhdr *eth_data;
@@ -4259,7 +4259,11 @@ static void bond_activebackup_xmit_copy(
skb2->mac.raw = (unsigned char *)skb2->data;
eth_data = eth_hdr(skb2);
- /* Pick an appropriate source MAC address */
+ /* Pick an appropriate source MAC address
+ * -- use slave's perm MAC addr, unless used by bond
+ * -- otherwise, borrow active slave's perm MAC addr
+ * since that will not be used
+ */
hwaddr = slave->perm_hwaddr;
if (!memcmp(eth_data->h_source, hwaddr, ETH_ALEN))
hwaddr = bond->curr_active_slave->perm_hwaddr;
-
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