diff options
Diffstat (limited to 'drivers/acpi/acpica/hwvalid.c')
| -rw-r--r-- | drivers/acpi/acpica/hwvalid.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c index e26c17d4b716..e1d9c777b213 100644 --- a/drivers/acpi/acpica/hwvalid.c +++ b/drivers/acpi/acpica/hwvalid.c @@ -150,7 +150,7 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width) if (last_address > ACPI_UINT16_MAX) { ACPI_ERROR((AE_INFO, - "Illegal I/O port address/length above 64K: 0x%p/%X", + "Illegal I/O port address/length above 64K: %p/0x%X", ACPI_CAST_PTR(void, address), byte_width)); return_ACPI_STATUS(AE_LIMIT); } @@ -222,6 +222,12 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width) u32 one_byte; u32 i; + /* Truncate address to 16 bits if requested */ + + if (acpi_gbl_truncate_io_addresses) { + address &= ACPI_UINT16_MAX; + } + /* Validate the entire request and perform the I/O */ status = acpi_hw_validate_io_request(address, width); @@ -279,6 +285,12 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width) acpi_status status; u32 i; + /* Truncate address to 16 bits if requested */ + + if (acpi_gbl_truncate_io_addresses) { + address &= ACPI_UINT16_MAX; + } + /* Validate the entire request and perform the I/O */ status = acpi_hw_validate_io_request(address, width); |