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| /openbmc/linux/kernel/bpf/ |
| H A D | net_namespace.c | 343ead28 Tue Jul 21 05:07:16 CDT 2020 Jakub Sitnicki <jakub@cloudflare.com> 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: 1559b4aa1db4 ("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
343ead28 Tue Jul 21 05:07:16 CDT 2020 Jakub Sitnicki <jakub@cloudflare.com> 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: 1559b4aa1db4 ("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
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