From 45939d2570e4c9120a732464b2dca9c0e5606eb2 Mon Sep 17 00:00:00 2001 From: Alexander Aring Date: Tue, 17 Dec 2013 14:21:27 +0100 Subject: [PATCH] 6lowpan: udp use subtraction on both conditions Cleanup code to handle both calculation in the same way. Signed-off-by: Alexander Aring Signed-off-by: Marcel Holtmann --- net/ieee802154/6lowpan_iphc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ieee802154/6lowpan_iphc.c b/net/ieee802154/6lowpan_iphc.c index 8857285b418b..b298bfc14943 100644 --- a/net/ieee802154/6lowpan_iphc.c +++ b/net/ieee802154/6lowpan_iphc.c @@ -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) { -- 2.20.1