Jakub Sitnicki 343ead287d bpf, netns: Fix build without CONFIG_INET ... When CONFIG_NET is set but CONFIG_INET isn't, build fails with: ld: kernel/bpf/net_namespace.o: in function `netns_bpf_attach_type_unneed': kernel/bpf/net_namespace.c:32: undefined reference to `bpf_sk_lookup_enabled' ld: kernel/bpf/net_namespace.o: in function `netns_bpf_attach_type_need': kernel/bpf/net_namespace.c:43: undefined reference to `bpf_sk_lookup_enabled' This is because without CONFIG_INET bpf_sk_lookup_enabled symbol is not available. Wrap references to bpf_sk_lookup_enabled with preprocessor conditionals. Fixes: 1559b4aa1d ("inet: Run SK_LOOKUP BPF program on socket lookup") Reported-by: Randy Dunlap <rdunlap@infradead.org> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Link: https://lore.kernel.org/bpf/20200721100716.720477-1-jakub@cloudflare.com		2020-07-21 09:12:34 -07:00
..
arraymap.c
bpf_iter.c
bpf_lru_list.c
bpf_lru_list.h
bpf_lsm.c
bpf_struct_ops.c
bpf_struct_ops_types.h
btf.c
cgroup.c
core.c	bpf, netns: Handle multiple link attachments	2020-07-17 20:18:16 -07:00
cpumap.c	bpf: cpumap: Implement XDP_REDIRECT for eBPF programs attached to map entries	2020-07-16 17:00:32 +02:00
devmap.c
disasm.c
disasm.h
dispatcher.c
hashtab.c
helpers.c
inode.c
local_storage.c
lpm_trie.c
Makefile
map_in_map.c
map_in_map.h
map_iter.c
net_namespace.c	bpf, netns: Fix build without CONFIG_INET	2020-07-21 09:12:34 -07:00
offload.c
percpu_freelist.c
percpu_freelist.h
queue_stack_maps.c
reuseport_array.c
ringbuf.c
stackmap.c
syscall.c	bpf: Introduce SK_LOOKUP program type with a dedicated attach point	2020-07-17 20:18:16 -07:00
sysfs_btf.c
task_iter.c
tnum.c
trampoline.c
verifier.c	bpf: Introduce SK_LOOKUP program type with a dedicated attach point	2020-07-17 20:18:16 -07:00