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Commit b89c3341 authored by Alexander Aring's avatar Alexander Aring Committed by Marcel Holtmann
Browse files

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: default avatarAlexander Aring <alex.aring@gmail.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent d0e73c47

drivers/net/ieee802154/at86rf230.c

+3 −7
Original line number Original line Diff line number Diff line
@@ -788,7 +788,7 @@ at86rf230_tx_trac_status(void *context) 




static void

static void

at86rf230_rx(struct at86rf230_local *lp,

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;

	struct sk_buff *skb;

	u8 rx_local_buf[AT86RF2XX_MAX_BUF];

	u8 rx_local_buf[AT86RF2XX_MAX_BUF];
@@ -803,11 +803,7 @@ at86rf230_rx(struct at86rf230_local *lp, 
	}

	}





	memcpy(skb_put(skb, len), rx_local_buf, len);

	memcpy(skb_put(skb, len), rx_local_buf, len);



	ieee802154_rx_irqsafe(lp->hw, skb, lqi);

	/* We do not put CRC into the frame */

	skb_trim(skb, len - 2);



	ieee802154_rx_irqsafe(lp->hw, skb, rx_local_buf[len]);

}

}





static void

static void
@@ -823,7 +819,7 @@ at86rf230_rx_read_frame_complete(void *context) 
		len = IEEE802154_MTU;

		len = IEEE802154_MTU;

	}

	}





	at86rf230_rx(lp, buf + 2, len);

	at86rf230_rx(lp, buf + 2, len - 2, buf[2 + len]);

}

}





static void

static void