netfilter: nf_tables: flow_offload depends on flow_table

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 <arnd@arndb.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index ea447826e1271cf9f3ab368b0ae27c39eb8d6dc9..9019fa98003db39f2d926f7bce333111e903bc23 100644 (file)
--- 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