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| author | YueHaibing <yuehaibing@huawei.com> | 2019-07-03 16:26:30 +0800 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-07-08 17:17:00 +0200 |
| commit | 6705fea0c799a4efb9a9ce2968a2f7a570e33dc2 (patch) | |
| tree | 51319bf5aa8bfa79062479dd1c2a1d33fc90364f | |
| parent | 06ec0e2c490afd2f870d89c59200540fd9acde95 (diff) | |
| download | linux-6705fea0c799a4efb9a9ce2968a2f7a570e33dc2.tar.bz2 | |
bpf: cgroup: Fix build error without CONFIG_NET
If CONFIG_NET is not set and CONFIG_CGROUP_BPF=y,
gcc building fails:
kernel/bpf/cgroup.o: In function `cg_sockopt_func_proto':
cgroup.c:(.text+0x237e): undefined reference to `bpf_sk_storage_get_proto'
cgroup.c:(.text+0x2394): undefined reference to `bpf_sk_storage_delete_proto'
kernel/bpf/cgroup.o: In function `__cgroup_bpf_run_filter_getsockopt':
(.text+0x2a1f): undefined reference to `lock_sock_nested'
(.text+0x2ca2): undefined reference to `release_sock'
kernel/bpf/cgroup.o: In function `__cgroup_bpf_run_filter_setsockopt':
(.text+0x3006): undefined reference to `lock_sock_nested'
(.text+0x32bb): undefined reference to `release_sock'
Reported-by: Hulk Robot <hulkci@huawei.com>
Suggested-by: Stanislav Fomichev <sdf@fomichev.me>
Fixes: 0d01da6afc54 ("bpf: implement getsockopt and setsockopt hooks")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
| -rw-r--r-- | kernel/bpf/cgroup.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/bpf/cgroup.c b/kernel/bpf/cgroup.c index 76fa0076f20d..0a00eaca6fae 100644 --- a/kernel/bpf/cgroup.c +++ b/kernel/bpf/cgroup.c @@ -939,6 +939,7 @@ int __cgroup_bpf_run_filter_sysctl(struct ctl_table_header *head, } EXPORT_SYMBOL(__cgroup_bpf_run_filter_sysctl); +#ifdef CONFIG_NET static bool __cgroup_bpf_prog_array_is_empty(struct cgroup *cgrp, enum bpf_attach_type attach_type) { @@ -1120,6 +1121,7 @@ out: return ret; } EXPORT_SYMBOL(__cgroup_bpf_run_filter_getsockopt); +#endif static ssize_t sysctl_cpy_dir(const struct ctl_dir *dir, char **bufp, size_t *lenp) @@ -1386,10 +1388,12 @@ static const struct bpf_func_proto * cg_sockopt_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) { switch (func_id) { +#ifdef CONFIG_NET case BPF_FUNC_sk_storage_get: return &bpf_sk_storage_get_proto; case BPF_FUNC_sk_storage_delete: return &bpf_sk_storage_delete_proto; +#endif #ifdef CONFIG_INET case BPF_FUNC_tcp_sock: return &bpf_tcp_sock_proto; |