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ipv6: exthdrs: use swap() instead of open coding it

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Address the following coccicheck warning:
net/ipv6/exthdrs.c:620:44-45: WARNING opportunity for swap()

by using swap() for the swapping of variable values and drop
the tmp (`addr`) variable that is not needed any more.

Signed-off-by: Guo Zhengkui <guozhengkui@vivo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Guo Zhengkui 2022-04-12 11:20:58 +08:00 committed by David S. Miller
parent 816cda9ae5
commit 5ee6ad1dca
1 changed files with 1 additions and 4 deletions
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5
net/ipv6/exthdrs.c
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@ -487,7 +487,6 @@ static int ipv6_rpl_srh_rcv(struct sk_buff *skb)
struct net *net = dev_net(skb->dev);
struct inet6_dev *idev;
struct ipv6hdr *oldhdr;
struct in6_addr addr;
unsigned char *buf;
int accept_rpl_seg;
int i, err;
@ -616,9 +615,7 @@ static int ipv6_rpl_srh_rcv(struct sk_buff *skb)
return -1;
}
addr = ipv6_hdr(skb)->daddr;
ipv6_hdr(skb)->daddr = ohdr->rpl_segaddr[i];
ohdr->rpl_segaddr[i] = addr;
swap(ipv6_hdr(skb)->daddr, ohdr->rpl_segaddr[i]);
ipv6_rpl_srh_compress(chdr, ohdr, &ipv6_hdr(skb)->daddr, n);