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Commit aaa7088e authored by Alexander Aring's avatar Alexander Aring Committed by Marcel Holtmann
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ieee802154: fix skb get fc on big endian 



This patch fixes ieee802154_get_fc_from_skb function on big endian
machines. The function get_unaligned_le16 converts the byte order to
host byte order but we want to keep the byte order like in mac header.

Signed-off-by: default avatarAlexander Aring <aar@pengutronix.de>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 0ea0b9af

include/net/mac802154.h

+4 −1
Original line number Diff line number Diff line
@@ -247,6 +247,8 @@ struct ieee802154_ops { 
 */

static inline __le16 ieee802154_get_fc_from_skb(const struct sk_buff *skb)

{

	__le16 fc;



	/* check if we can fc at skb_mac_header of sk buffer */

	if (unlikely(!skb_mac_header_was_set(skb) ||

		     (skb_tail_pointer(skb) - skb_mac_header(skb)) < 2)) {
@@ -254,7 +256,8 @@ static inline __le16 ieee802154_get_fc_from_skb(const struct sk_buff *skb) 
		return cpu_to_le16(0);

	}



	return get_unaligned_le16(skb_mac_header(skb));

	memcpy(&fc, skb_mac_header(skb), IEEE802154_FC_LEN);

	return fc;

}



/**