netdev - [PATCH ipsec-next] xfrm: avoid compiler warning when ipv6 is disabled

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Message-Id: <20210615142720.2749-1-fw@strlen.de>
Date:   Tue, 15 Jun 2021 16:27:20 +0200
From:   Florian Westphal <fw@...len.de>
To:     <netdev@...r.kernel.org>
Cc:     steffen.klassert@...unet.com, Florian Westphal <fw@...len.de>
Subject: [PATCH ipsec-next] xfrm: avoid compiler warning when ipv6 is disabled

with CONFIG_IPV6=n:
xfrm_output.c:140:12: warning: 'xfrm6_hdr_offset' defined but not used

Fixes: 9acf4d3b9ec1 ("xfrm: ipv6: add xfrm6_hdr_offset helper")
Signed-off-by: Florian Westphal <fw@...len.de>
---
 net/xfrm/xfrm_output.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index 3709d3f7c5ce..527da58464f3 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -137,6 +137,7 @@ static int mip6_rthdr_offset(struct sk_buff *skb, u8 **nexthdr, int type)
 }
 #endif
 
+#if IS_ENABLED(CONFIG_IPV6)
 static int xfrm6_hdr_offset(struct xfrm_state *x, struct sk_buff *skb, u8 **prevhdr)
 {
 	switch (x->type->proto) {
@@ -151,6 +152,7 @@ static int xfrm6_hdr_offset(struct xfrm_state *x, struct sk_buff *skb, u8 **prev
 
 	return ip6_find_1stfragopt(skb, prevhdr);
 }
+#endif
 
 /* Add encapsulation header.
  *
-- 
2.31.1