Message ID | 1345837976.2694.36.camel@bwh-desktop.uk.solarflarecom.com |
---|---|
State | Accepted, archived |
Delegated to: | David Miller |
Headers | show |
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c index b29db12..4105a666 100644 --- a/drivers/net/ethernet/sfc/efx.c +++ b/drivers/net/ethernet/sfc/efx.c @@ -1953,8 +1953,6 @@ static int efx_change_mtu(struct net_device *net_dev, int new_mtu) netif_dbg(efx, drv, efx->net_dev, "changing MTU to %d\n", new_mtu); mutex_lock(&efx->mac_lock); - /* Reconfigure the MAC before enabling the dma queues so that - * the RX buffers don't overflow */ net_dev->mtu = new_mtu; efx->type->reconfigure_mac(efx); mutex_unlock(&efx->mac_lock);
RX DMA is limited by the length specified in each descriptor and not by the MAC. Over-length frames may get into the RX FIFO regardless of the MAC settings, due to a hardware bug, but they will be truncated by the packet DMA engine and reported as such in the completion event. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> --- drivers/net/ethernet/sfc/efx.c | 2 -- 1 files changed, 0 insertions(+), 2 deletions(-)