static ssize_t mspro_block_attr_show_sysinfo()

in core/mspro_block.c [308:388]

• 79 lines of code
• 3 McCabe index (conditional complexity)

static ssize_t mspro_block_attr_show_sysinfo(struct device *dev,
					     struct device_attribute *attr,
					     char *buffer)
{
	struct mspro_sys_attr *x_attr = container_of(attr,
						     struct mspro_sys_attr,
						     dev_attr);
	struct mspro_sys_info *x_sys = x_attr->data;
	ssize_t rc = 0;
	int date_tz = 0, date_tz_f = 0;

	if (x_sys->assembly_date[0] > 0x80U) {
		date_tz = (~x_sys->assembly_date[0]) + 1;
		date_tz_f = date_tz & 3;
		date_tz >>= 2;
		date_tz = -date_tz;
		date_tz_f *= 15;
	} else if (x_sys->assembly_date[0] < 0x80U) {
		date_tz = x_sys->assembly_date[0];
		date_tz_f = date_tz & 3;
		date_tz >>= 2;
		date_tz_f *= 15;
	}

	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "class: %x\n",
			x_sys->class);
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block size: %x\n",
			be16_to_cpu(x_sys->block_size));
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "block count: %x\n",
			be16_to_cpu(x_sys->block_count));
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "user block count: %x\n",
			be16_to_cpu(x_sys->user_block_count));
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "page size: %x\n",
			be16_to_cpu(x_sys->page_size));
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly date: "
			"GMT%+d:%d %04u-%02u-%02u %02u:%02u:%02u\n",
			date_tz, date_tz_f,
			be16_to_cpup((__be16 *)&x_sys->assembly_date[1]),
			x_sys->assembly_date[3], x_sys->assembly_date[4],
			x_sys->assembly_date[5], x_sys->assembly_date[6],
			x_sys->assembly_date[7]);
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "serial number: %x\n",
			be32_to_cpu(x_sys->serial_number));
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
			"assembly maker code: %x\n",
			x_sys->assembly_maker_code);
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "assembly model code: "
			"%02x%02x%02x\n", x_sys->assembly_model_code[0],
			x_sys->assembly_model_code[1],
			x_sys->assembly_model_code[2]);
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory maker code: %x\n",
			be16_to_cpu(x_sys->memory_maker_code));
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "memory model code: %x\n",
			be16_to_cpu(x_sys->memory_model_code));
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vcc: %x\n",
			x_sys->vcc);
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "vpp: %x\n",
			x_sys->vpp);
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller number: %x\n",
			be16_to_cpu(x_sys->controller_number));
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc,
			"controller function: %x\n",
			be16_to_cpu(x_sys->controller_function));
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "start sector: %x\n",
			be16_to_cpu(x_sys->start_sector));
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "unit size: %x\n",
			be16_to_cpu(x_sys->unit_size));
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "sub class: %x\n",
			x_sys->ms_sub_class);
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "interface type: %x\n",
			x_sys->interface_type);
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "controller code: %x\n",
			be16_to_cpu(x_sys->controller_code));
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "format type: %x\n",
			x_sys->format_type);
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "device type: %x\n",
			x_sys->device_type);
	rc += scnprintf(buffer + rc, PAGE_SIZE - rc, "mspro id: %s\n",
			x_sys->mspro_id);
	return rc;
}