netdev - [PATCH ipsec-next] xfrm: kconfig: make xfrm depend on inet

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Date:   Fri, 12 Apr 2019 10:14:46 +0200
From:   Florian Westphal <fw@...len.de>
To:     steffen.klassert@...unet.com
Cc:     <netdev@...r.kernel.org>, Florian Westphal <fw@...len.de>,
        Randy Dunlap <rdunlap@...radead.org>
Subject: [PATCH ipsec-next] xfrm: kconfig: make xfrm depend on inet

when CONFIG_INET is not enabled:
net/xfrm/xfrm_output.c: In function ‘xfrm4_tunnel_encap_add’:
net/xfrm/xfrm_output.c:234:2: error: implicit declaration of function ‘ip_select_ident’ [-Werror=implicit-function-declaration]
ip_select_ident(dev_net(dst->dev), skb, NULL);

XFRM only supports ipv4 and ipv6 so change dependency to INET and place
user-visible options (pfkey sockets, migrate support and the like)
under 'if INET' guard as well.

Fixes: 1de70830066b7 ("xfrm: remove output2 indirection from xfrm_mode")
Reported-by: Randy Dunlap <rdunlap@...radead.org>
Signed-off-by: Florian Westphal <fw@...len.de>
---
 net/xfrm/Kconfig | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/xfrm/Kconfig b/net/xfrm/Kconfig
index 5d43aaa17027..1ec8071226b2 100644
--- a/net/xfrm/Kconfig
+++ b/net/xfrm/Kconfig
@@ -3,7 +3,7 @@
 #
 config XFRM
        bool
-       depends on NET
+       depends on INET
        select GRO_CELLS
        select SKB_EXTENSIONS
 
@@ -15,9 +15,9 @@ config XFRM_ALGO
 	select XFRM
 	select CRYPTO
 
+if INET
 config XFRM_USER
 	tristate "Transformation user configuration interface"
-	depends on INET
 	select XFRM_ALGO
 	---help---
 	  Support for Transformation(XFRM) user configuration interface
@@ -56,7 +56,7 @@ config XFRM_MIGRATE
 
 config XFRM_STATISTICS
 	bool "Transformation statistics"
-	depends on INET && XFRM && PROC_FS
+	depends on XFRM && PROC_FS
 	---help---
 	  This statistics is not a SNMP/MIB specification but shows
 	  statistics about transformation error (or almost error) factor
@@ -95,3 +95,5 @@ config NET_KEY_MIGRATE
 	  <draft-sugimoto-mip6-pfkey-migrate>.
 
 	  If unsure, say N.
+
+endif # INET
-- 
2.21.0