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e426674e90
SMU15 driver messages can carry multiple input parameters and return values, but callers still have to build struct smu_msg_args directly. Add common SMU multi-msgs helpers in smu_cmn and reuse them in the single-parameter wrapper and the shared table transfer path. Keep smu_cmn_send_smc_msg() semantics unchanged for older callers. No functional change intended. Signed-off-by: Yang Wang <kevinyang.wang@amd.com> Reviewed-by: Kenneth Feng <kenneth.feng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>