[PATCH] netfilter: nf_tables: flow_offload depends on flow_table

[Arnd Bergmann]

Without CONFIG_NF_FLOW_TABLE, the new nft_flow_offload module produces
a link error:

net/netfilter/nft_flow_offload.o: In function 
`nft_flow_offload_iterate_cleanup':
nft_flow_offload.c:(.text+0xb0): undefined reference to `nf_flow_table_iterate'
net/netfilter/nft_flow_offload.o: In function `flow_offload_iterate_cleanup':
nft_flow_offload.c:(.text+0x160): undefined reference to `flow_offload_dead'
net/netfilter/nft_flow_offload.o: In function `nft_flow_offload_eval':
nft_flow_offload.c:(.text+0xc4c): undefined reference to `flow_offload_alloc'
nft_flow_offload.c:(.text+0xc64): undefined reference to `flow_offload_add'
nft_flow_offload.c:(.text+0xc94): undefined reference to `flow_offload_free'

This adds a Kconfig dependency for it.

Fixes: a3c90f7a2323 ("netfilter: nf_tables: flow offload expression")
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
 net/netfilter/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index ea447826e127..9019fa98003d 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -506,7 +506,7 @@ config NFT_CT
          connection tracking information such as the flow state.
 
 config NFT_FLOW_OFFLOAD
-       depends on NF_CONNTRACK
+       depends on NF_CONNTRACK && NF_FLOW_TABLE
        tristate "Netfilter nf_tables hardware flow offload module"
        help
          This option adds the "flow_offload" expression that you can use to
-- 
2.9.0