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Cupertino Miranda says: ==================== bpf/verifier: range computation improvements Hi everyone, This is what I hope to be the last version. :) Regards, Cupertino Changes from v1: - Reordered patches in the series. - Fix refactor to be acurate with original code. - Fixed other mentioned small problems. Changes from v2: - Added a patch to replace mark_reg_unknowon for __mark_reg_unknown in the context of range computation. - Reverted implementation of refactor to v1 which used a simpler boolean return value in check function. - Further relaxed MUL to allow it to still compute a range when neither of its registers is a known value. - Simplified tests based on Eduards example. - Added messages in selftest commits. Changes from v3: - Improved commit message of patch nr 1. - Coding style fixes. - Improve XOR and OR tests. - Made function calls to pass struct bpf_reg_state pointer instead. - Improved final code as a last patch. Changes from v4: - Merged patch nr 7 in 2. ==================== Link: https://lore.kernel.org/r/20240506141849.185293-1-cupertino.miranda@oracle.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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