From: Alexander Aring Date: Tue, 17 Dec 2013 13:21:27 +0000 (+0100) Subject: 6lowpan: udp use subtraction on both conditions X-Git-Tag: v3.14-rc1~94^2~238^2^2~22^2~14 X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=45939d2570e4c9120a732464b2dca9c0e5606eb2 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 --- 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) {