mainline inclusion
from mainline-5.16-rc1
commit 30c5bd96
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=30c5bd96476ced0d3e08372be5186ff7f421d10c

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

Enhance existing selftests to demonstrate the use of custom
.data/.rodata sections.
Signed-off-by: NAndrii Nakryiko <andrii@kernel.org>
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
Acked-by: NSong Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20211021014404.2635234-9-andrii@kernel.org
(cherry picked from commit 30c5bd96)
Signed-off-by: NWang Yufen <wangyufen@huawei.com>