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net: decnet: dn_nsp_out: use swap macro in dn_mk_ack_header

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Make use of the swap macro and remove unnecessary variable tmp.
This makes the code easier to read and maintain.

This code was detected with the help of Coccinelle.

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gustavo A. R. Silva 2017-10-28 15:39:48 -05:00 committed by David S. Miller
parent 68ad08c4f8
commit 3a7943ba5b
1 changed files with 2 additions and 5 deletions
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7
net/decnet/dn_nsp_out.c
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@ -313,11 +313,8 @@ static __le16 *dn_mk_ack_header(struct sock *sk, struct sk_buff *skb, unsigned c
ackcrs |= 0x8000;
/* If this is an "other data/ack" message, swap acknum and ackcrs */
if (other) {
unsigned short tmp = acknum;
acknum = ackcrs;
ackcrs = tmp;
}
if (other)
swap(acknum, ackcrs);
/* Set "cross subchannel" bit in ackcrs */
ackcrs |= 0x2000;