ICH_SMB_HS_BUSY
if (!(st & ICH_SMB_HS_BUSY))
if (st & ICH_SMB_HS_BUSY)
if ((st & ICH_SMB_HS_BUSY) == 0)
if ((st & ICH_SMB_HS_BUSY) != 0 || (st & (ICH_SMB_HS_INTR |