linux-kernel - [PATCH net-next] net: ipv6: exthdrs: get rid of ipv6_skb

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Date: Fri,  8 Mar 2024 19:53:43 +0100
From: Justin Iurman <justin.iurman@...ege.be>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	dsahern@...nel.org,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	linux-kernel@...r.kernel.org,
	justin.iurman@...ege.be
Subject: [PATCH net-next] net: ipv6: exthdrs: get rid of ipv6_skb_net()

Get rid of ipv6_skb_net() which is only used in ipv6_hop_ioam().

Signed-off-by: Justin Iurman <justin.iurman@...ege.be>
---
 net/ipv6/exthdrs.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 25a5b394481b..6789623b2b0d 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c
@@ -883,14 +883,6 @@ void ipv6_exthdrs_exit(void)
   Hop-by-hop options.
  **********************************/
 
-/*
- * Note: we cannot rely on skb_dst(skb) before we assign it in ip6_route_input().
- */
-static inline struct net *ipv6_skb_net(struct sk_buff *skb)
-{
-	return skb_dst(skb) ? dev_net(skb_dst(skb)->dev) : dev_net(skb->dev);
-}
-
 /* Router Alert as of RFC 2711 */
 
 static bool ipv6_hop_ra(struct sk_buff *skb, int optoff)
@@ -941,7 +933,7 @@ static bool ipv6_hop_ioam(struct sk_buff *skb, int optoff)
 			goto drop;
 
 		/* Ignore if the IOAM namespace is unknown */
-		ns = ioam6_namespace(ipv6_skb_net(skb), trace->namespace_id);
+		ns = ioam6_namespace(dev_net(skb->dev), trace->namespace_id);
 		if (!ns)
 			goto ignore;
 
-- 
2.34.1