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Commit 45939d25 authored by Alexander Aring's avatar Alexander Aring Committed by Marcel Holtmann
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6lowpan: udp use subtraction on both conditions 



Cleanup code to handle both calculation in the same way.

Signed-off-by: default avatarAlexander Aring <alex.aring@gmail.com>
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 1672a36b

net/ieee802154/6lowpan_iphc.c

+1 −1
Original line number Diff line number Diff line
@@ -557,7 +557,7 @@ static void compress_udp_header(u8 **hc06_ptr, struct sk_buff *skb) 
		lowpan_push_hc_data(hc06_ptr, &tmp, sizeof(tmp));

		tmp = /* subtraction is faster */

		   (u8)((ntohs(uh->dest) - LOWPAN_NHC_UDP_4BIT_PORT) +

		       ((ntohs(uh->source) & LOWPAN_NHC_UDP_4BIT_PORT) << 4));

		       ((ntohs(uh->source) - LOWPAN_NHC_UDP_4BIT_PORT) << 4));

		lowpan_push_hc_data(hc06_ptr, &tmp, sizeof(tmp));

	} else if ((ntohs(uh->dest) & LOWPAN_NHC_UDP_8BIT_MASK) ==

			LOWPAN_NHC_UDP_8BIT_PORT) {