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83419c8fdb
Factor the return value range calculation logic in check_return_code out of the function in preparation for separating the return value validation logic for BPF_EXIT and bpf_throw(). No functional changes. The change made in return_retval_code's handling of PROG_TRACING program types (not error'ing on the default case) is a no-op because the match on the program attach type is exhaustive. Acked-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Emil Tsalapatis <emil@etsalapatis.com> Link: https://lore.kernel.org/r/20260228184759.108145-2-emil@etsalapatis.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>