SDEV2ADDR
#define SDEV2ADDR(sd) (&((sd)->sd_address))
#define SDEV2ADDR(devp) (&((devp)->sd_address))
#define SDEV2ADDR(sdp) (&(sdp)->sd_address)
#define SDEV2ADDR(sdp) (&(sdp)->sd_address)
#define SDEV2ADDR(sd) (&((sd)->sd_address))