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| author | Li Yang <leoli@freescale.com> | 2009-03-27 15:54:30 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-27 15:54:30 -0700 |
| commit | 5b28beaf88436fa44fc25ee27a2fadffb75f222e (patch) | |
| tree | f8e6b7da27f9a90ac22e0359696572cdb6020ebc | |
| parent | 8ebaebca7e9d371d79088190990f95e95e225b6d (diff) | |
| download | linux-5b28beaf88436fa44fc25ee27a2fadffb75f222e.tar.bz2 | |
gianfar: only check headroom when FCB is needed
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/gianfar.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c index 44cbf2622b46..6a38800be3f1 100644 --- a/drivers/net/gianfar.c +++ b/drivers/net/gianfar.c @@ -1310,8 +1310,10 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev) base = priv->tx_bd_base; - /* make space for additional header */ - if (skb_headroom(skb) < GMAC_FCB_LEN) { + /* make space for additional header when fcb is needed */ + if (((skb->ip_summed == CHECKSUM_PARTIAL) || + (priv->vlgrp && vlan_tx_tag_present(skb))) && + (skb_headroom(skb) < GMAC_FCB_LEN)) { struct sk_buff *skb_new; skb_new = skb_realloc_headroom(skb, GMAC_FCB_LEN); |