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2024-10-24selftests/bpf: Some basic __uptr testsKui-Feng Lee
Make sure the memory of uptrs have been mapped to the kernel properly. Also ensure the values of uptrs in the kernel haven't been copied to userspace. It also has the syscall update_elem/delete_elem test to test the pin/unpin code paths. Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com> Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/r/20241023234759.860539-9-martin.lau@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>