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ACPICA: Update integer-to-hex-string conversions

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ACPICA commit f2cb44f6deb6325a6b348b225fc82f565a870899

Add "0x" prefix for explicitly converted integers
and suppress leading zeros in such a case.
Provides compatibility with other ACPI implementations.

Link: https://github.com/acpica/acpica/commit/f2cb44f6
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Armin Wolf 2023-10-28 00:22:14 +02:00 committed by Rafael J. Wysocki
parent 0e89a0fc55
commit db0a507cb2
1 changed files with 24 additions and 0 deletions
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24
drivers/acpi/acpica/exconvrt.c
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@ -417,6 +417,16 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
base = 10;
break;
case ACPI_EXPLICIT_CONVERT_HEX:
/*
* From to_hex_string.
*
* Supress leading zeros and append "0x"
*/
string_length =
ACPI_MUL_2(acpi_gbl_integer_byte_width) + 2;
leading_zeros = FALSE;
break;
default:
/* Two hex string characters for each integer byte */
@ -437,6 +447,13 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
}
new_buf = return_desc->buffer.pointer;
if (type == ACPI_EXPLICIT_CONVERT_HEX) {
/* Append "0x" prefix for explicit hex conversion */
*new_buf++ = '0';
*new_buf++ = 'x';
}
/* Convert integer to string */
@ -449,6 +466,13 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
/* Null terminate at the correct place */
return_desc->string.length = string_length;
if (type == ACPI_EXPLICIT_CONVERT_HEX) {
/* Take "0x" prefix into account */
return_desc->string.length += 2;
}
new_buf[string_length] = 0;
break;