mainline inclusion
from mainline-5.16-rc1
commit d6aef08a
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=d6aef08a872b9e23eecc92d0e92393473b13c497

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

This helper allows us to get the address of a kernel symbol from inside
a BPF_PROG_TYPE_SYSCALL prog (used by gen_loader), so that we can
relocate typeless ksym vars.
Signed-off-by: NKumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
Acked-by: NSong Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20211028063501.2239335-2-memxor@gmail.com
(cherry picked from commit d6aef08a)
Signed-off-by: NWang Yufen <wangyufen@huawei.com>

Conflicts:
	include/linux/bpf.h
	include/uapi/linux/bpf.h
	tools/include/uapi/linux/bpf.h
Signed-off-by: NWang Yufen <wangyufen@huawei.com>