mainline inclusion
from mainline-5.17-rc1
commit d52f5c63
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5EUVD
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d52f5c639dd8605d2563b77b190e278f615a2b8a

-------------------------------------------------

Add BTF_KIND_TYPE_TAG documentation in btf.rst.
Signed-off-by: NYonghong Song <yhs@fb.com>
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
Acked-by: NAndrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211112012656.1509082-1-yhs@fb.com
(cherry picked from commit d52f5c63)
Signed-off-by: NWang Yufen <wangyufen@huawei.com>