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bpf: include errno.h from bpf-cgroup.h

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Commit fdb5c4531c ("bpf: fix attach type BPF_LIRC_MODE2 dependency
wrt CONFIG_CGROUP_BPF") caused some build issues, detected by 0-DAY
kernel test infrastructure.

The problem is that cgroup_bpf_prog_attach/detach/query() functions
can return -EINVAL error code, which is not defined. Fix this adding
errno.h to includes.

Fixes: fdb5c4531c ("bpf: fix attach type BPF_LIRC_MODE2 dependency wrt CONFIG_CGROUP_BPF")
Signed-off-by: Roman Gushchin <guro@fb.com>
Cc: Sean Young <sean@mess.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Roman Gushchin 2018-07-06 14:34:29 -07:00 committed by Daniel Borkmann
parent 6508b6781b
commit f292b87d3a
1 changed files with 1 additions and 0 deletions
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include/linux/bpf-cgroup.h
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@ -2,6 +2,7 @@
#ifndef _BPF_CGROUP_H
#define _BPF_CGROUP_H
#include <linux/errno.h>
#include <linux/jump_label.h>
#include <uapi/linux/bpf.h>