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a2065: skb_padto cleanups 

Remove unnecessary check (skb_padto does the same check)
Remove unnecessary duplicate variable
Remove unnecessary clearing of padded part of skb.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dave Jones 2009-03-18 18:17:48 -07:00 committed by David S. Miller
parent af4330631c
commit cedc1dba74
1 changed files with 5 additions and 14 deletions
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19
drivers/net/a2065.c
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@ -552,18 +552,13 @@ static int lance_start_xmit (struct sk_buff *skb, struct net_device *dev)
struct lance_private *lp = netdev_priv(dev);
volatile struct lance_regs *ll = lp->ll;
volatile struct lance_init_block *ib = lp->init_block;
int entry, skblen, len;
int entry, skblen;
int status = 0;
unsigned long flags;
skblen = skb->len;
len = skblen;
if (len < ETH_ZLEN) {
len = ETH_ZLEN;
if (skb_padto(skb, ETH_ZLEN))
return 0;
}
if (skb_padto(skb, ETH_ZLEN))
return 0;
skblen = max_t(unsigned, skb->len, ETH_ZLEN);
local_irq_save(flags);
@ -586,15 +581,11 @@ static int lance_start_xmit (struct sk_buff *skb, struct net_device *dev)
}
#endif
entry = lp->tx_new & lp->tx_ring_mod_mask;
ib->btx_ring [entry].length = (-len) | 0xf000;
ib->btx_ring [entry].length = (-skblen) | 0xf000;
ib->btx_ring [entry].misc = 0;
skb_copy_from_linear_data(skb, (void *)&ib->tx_buf [entry][0], skblen);
/* Clear the slack of the packet, do I need this? */
if (len != skblen)
memset ((void *) &ib->tx_buf [entry][skblen], 0, len - skblen);
/* Now, give the packet to the lance */
ib->btx_ring [entry].tmd1_bits = (LE_T1_POK|LE_T1_OWN);
lp->tx_new = (lp->tx_new+1) & lp->tx_ring_mod_mask;