at86rf230: improve receive handling
Current behaviour it to copy the frame inclusive CRC into a skb, then
remove the CRC from the skb. This patch optimizes this by not copying
the CRC at the first place.
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index 368791b..a155838 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -788,7 +788,7 @@
static void
at86rf230_rx(struct at86rf230_local *lp,
- const u8 *data, const u8 len)
+ const u8 *data, const u8 len, const u8 lqi)
{
struct sk_buff *skb;
u8 rx_local_buf[AT86RF2XX_MAX_BUF];
@@ -803,11 +803,7 @@
}
memcpy(skb_put(skb, len), rx_local_buf, len);
-
- /* We do not put CRC into the frame */
- skb_trim(skb, len - 2);
-
- ieee802154_rx_irqsafe(lp->hw, skb, rx_local_buf[len]);
+ ieee802154_rx_irqsafe(lp->hw, skb, lqi);
}
static void
@@ -823,7 +819,7 @@
len = IEEE802154_MTU;
}
- at86rf230_rx(lp, buf + 2, len);
+ at86rf230_rx(lp, buf + 2, len - 2, buf[2 + len]);
}
static void