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When CONFIG_SECURITY_NETWORK is disabled, there will be build warnings from resolve_btfids: WARN: resolve_btfids: unresolved symbol bpf_lsm_socket_socketpair ...... WARN: resolve_btfids: unresolved symbol bpf_lsm_inet_conn_established Fixing it by wrapping these BTF ID definitions by CONFIG_SECURITY_NETWORK. Fixes:69fd337a97("bpf: per-cgroup lsm flavor") Fixes:9113d7e48e("bpf: expose bpf_{g,s}etsockopt to lsm cgroup") Signed-off-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/20220901065126.3856297-1-houtao@huaweicloud.com Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.