From: Armin Wolf <W_Armin@xxxxxx> 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@xxxxxx> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx> --- drivers/acpi/acpica/exconvrt.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c index 9647325d290d..bb1be42daee1 100644 --- a/drivers/acpi/acpica/exconvrt.c +++ b/drivers/acpi/acpica/exconvrt.c @@ -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; -- 2.43.0
