From: Herat Ramani herat@chelsio.com
[ Upstream commit 41aa8561ca3fc5748391f08cc5f3e561923da52c ]
cxgb4_update_mac_filt() earlier requests firmware to add a new MAC address into MPS TCAM. The MPS TCAM index returned by firmware is stored in pi->xact_addr_filt. However, the saved MPS TCAM index gets overwritten again with the return value of cxgb4_update_mac_filt(), which is wrong.
When trying to update to another MAC address later, the wrong MPS TCAM index is sent to firmware, which causes firmware to return error, because it's not the same MPS TCAM index that firmware had sent earlier to driver.
So, fix by removing the wrong overwrite being done after call to cxgb4_update_mac_filt().
Fixes: 3f8cfd0d95e6 ("cxgb4/cxgb4vf: Program hash region for {t4/t4vf}_change_mac()") Signed-off-by: Herat Ramani herat@chelsio.com Signed-off-by: Rahul Lakkireddy rahul.lakkireddy@chelsio.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 1 - 1 file changed, 1 deletion(-)
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -3138,7 +3138,6 @@ static int cxgb_set_mac_addr(struct net_ return ret;
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); - pi->xact_addr_filt = ret; return 0; }