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[SK_BUFF]: Introduce skb_copy_from_linear_data{_offset}

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To clearly state the intent of copying from linear sk_buffs, _offset being a
overly long variant but interesting for the sake of saving some bytes.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2007-03-27 18:55:52 -03:00
committed by David S. Miller
parent 2a123b86e2
commit d626f62b11
133 changed files with 321 additions and 230 deletions
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2
drivers/net/hamradio/dmascc.c
View File

@@ -930,7 +930,7 @@ static int scc_send_packet(struct sk_buff *skb, struct net_device *dev)
/* Transfer data to DMA buffer */
i = priv->tx_head;
memcpy(priv->tx_buf[i], skb->data + 1, skb->len - 1);
skb_copy_from_linear_data_offset(skb, 1, priv->tx_buf[i], skb->len - 1);
priv->tx_len[i] = skb->len - 1;
/* Clear interrupts while we touch our circular buffers */

4
drivers/net/hamradio/hdlcdrv.c
View File

@@ -317,7 +317,9 @@ void hdlcdrv_transmitter(struct net_device *dev, struct hdlcdrv_state *s)
dev_kfree_skb_irq(skb);
break;
}
memcpy(s->hdlctx.buffer, skb->data+1, pkt_len);
skb_copy_from_linear_data_offset(skb, 1,
s->hdlctx.buffer,
pkt_len);
dev_kfree_skb_irq(skb);
s->hdlctx.bp = s->hdlctx.buffer;
append_crc_ccitt(s->hdlctx.buffer, pkt_len);

4
drivers/net/hamradio/yam.c
View File

@@ -638,7 +638,9 @@ static void yam_tx_byte(struct net_device *dev, struct yam_port *yp)
dev_kfree_skb_any(skb);
break;
}
memcpy(yp->tx_buf, skb->data + 1, yp->tx_len);
skb_copy_from_linear_data_offset(skb->data, 1,
yp->tx_buf,
yp->tx_len);
dev_kfree_skb_any(skb);
yp->tx_count = 0;
yp->tx_crcl = 0x21;