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For a bpf_kptr_xchg() with local kptr, if the map value kptr type and allocated local obj type does not match, with the previous patch, the below verifier error message will be logged: R2 is of type <allocated local obj type> but <map value kptr type> is expected Without the previous patch, the test will have unexpected success. Signed-off-by: Yonghong Song <yonghong.song@linux.dev> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20230822050058.2887354-1-yonghong.song@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>