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| author | Yonghong Song <yhs@fb.com> | 2018-06-04 08:53:41 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-06-04 21:52:26 +0200 |
| commit | 34ea38ca27991466a8fff849514b4181b42ae2eb (patch) | |
| tree | 82a6a5c2b288e9d1011c4a24e71825cce3b37792 /arch/arm/net/bpf_jit_32.c | |
| parent | 649953628ee241188af0afb55a5bc4b8c0a9d603 (diff) | |
| download | op-kernel-dev-34ea38ca27991466a8fff849514b4181b42ae2eb.zip op-kernel-dev-34ea38ca27991466a8fff849514b4181b42ae2eb.tar.gz | |
bpf: guard bpf_get_current_cgroup_id() with CONFIG_CGROUPS
Commit bf6fa2c893c5 ("bpf: implement bpf_get_current_cgroup_id()
helper") introduced a new helper bpf_get_current_cgroup_id().
The helper has a dependency on CONFIG_CGROUPS.
When CONFIG_CGROUPS is not defined, using the helper will result
the following verifier error:
kernel subsystem misconfigured func bpf_get_current_cgroup_id#80
which is hard for users to interpret.
Guarding the reference to bpf_get_current_cgroup_id_proto with
CONFIG_CGROUPS will result in below better message:
unknown func bpf_get_current_cgroup_id#80
Fixes: bf6fa2c893c5 ("bpf: implement bpf_get_current_cgroup_id() helper")
Suggested-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'arch/arm/net/bpf_jit_32.c')
0 files changed, 0 insertions, 0 deletions
