diff options
| author | Chris Metcalf <cmetcalf@tilera.com> | 2010-07-06 13:45:24 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2010-07-06 13:45:24 -0400 |
| commit | a2262d8a231e92742651859a10c9a4430a5e899a (patch) | |
| tree | b5a823e3f6a3f60e1dd995f113caf0b350228d84 /drivers/acpi/acpica/hwvalid.c | |
| parent | ef06f55a5c936a395f3ee2e1237bbebdb4396c65 (diff) | |
| parent | 815c4163b6c8ebf8152f42b0a5fd015cfdcedc78 (diff) | |
Merge branch 'master' into for-linus
Diffstat (limited to 'drivers/acpi/acpica/hwvalid.c')
| -rw-r--r-- | drivers/acpi/acpica/hwvalid.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c index c10d587c164..e1d9c777b21 100644 --- a/drivers/acpi/acpica/hwvalid.c +++ b/drivers/acpi/acpica/hwvalid.c @@ -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); |