s390/als: print missing facilities on facility mismatch

	_sclp_print_early(mach_str);

}

static void __init u16_to_decimal(char *str, u16 val)

{

	int div = 1;

	while (div * 10 <= val)

		div *= 10;

	while (div) {

		*str++ = '0' + val / div;

		val %= div;

		div /= 10;

	}

	*str = '\0';

}

static void __init print_missing_facilities(void)

{

	static char als_str[80] __initdata = "Missing facilities: ";

	unsigned long val;

	char val_str[6];

	int i, j, first;

	first = 1;

	for (i = 0; i < ARRAY_SIZE(als); i++) {

		val = ~S390_lowcore.stfle_fac_list[i] & als[i];

		for (j = 0; j < BITS_PER_LONG; j++) {

			if (!(val & (1UL << (BITS_PER_LONG - 1 - j))))

				continue;

			if (!first)

				strcat(als_str, ",");

			/*

			 * Make sure we stay within one line. Consider that

			 * each facility bit adds up to five characters and

			 * z/VM adds a four character prefix.

			 */

			if (strlen(als_str) > 70) {

				_sclp_print_early(als_str);

				*als_str = '\0';

			}

			u16_to_decimal(val_str, i * BITS_PER_LONG + j);

			strcat(als_str, val_str);

			first = 0;

		}

	}

	_sclp_print_early(als_str);

	_sclp_print_early("See Principles of Operations for facility bits");

}

static void __init facility_mismatch(void)

{

	_sclp_print_early("The Linux kernel requires more recent processor hardware");

	print_machine_type();

	print_missing_facilities();

	disabled_wait(0x8badcccc);

}