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authorEric Dumazet <edumazet@google.com>2020-11-09 15:13:49 -0800
committerJakub Kicinski <kuba@kernel.org>2020-11-10 17:57:14 -0800
commit7b58e63e744cbcdeafe0a52423014fd9c9f7e346 (patch)
tree9f9b4e2c1bc9dac9e1053805d90e1baf5ce09339 /net
parentd6bb2d1e86903d3fbf895752ac2c0c2465534579 (diff)
inet: udp{4|6}_lib_lookup_skb() skb argument is const
The skb is needed only to fetch the keys for the lookup. Both functions are used from GRO stack, we do not want accidental modification of the skb. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Alexander Lobakin <alobakin@pm.me> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/udp.c2
-rw-r--r--net/ipv6/udp.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 0d5cd6905749..c732f5acf720 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -541,7 +541,7 @@ static inline struct sock *__udp4_lib_lookup_skb(struct sk_buff *skb,
inet_sdif(skb), udptable, skb);
}
-struct sock *udp4_lib_lookup_skb(struct sk_buff *skb,
+struct sock *udp4_lib_lookup_skb(const struct sk_buff *skb,
__be16 sport, __be16 dport)
{
const struct iphdr *iph = ip_hdr(skb);
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 559611bef0e6..e152f8000db4 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -276,7 +276,7 @@ static struct sock *__udp6_lib_lookup_skb(struct sk_buff *skb,
inet6_sdif(skb), udptable, skb);
}
-struct sock *udp6_lib_lookup_skb(struct sk_buff *skb,
+struct sock *udp6_lib_lookup_skb(const struct sk_buff *skb,
__be16 sport, __be16 dport)
{
const struct ipv6hdr *iph = ipv6_hdr(skb);