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| author | Len Brown <len.brown@intel.com> | 2009-02-25 18:00:18 -0500 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-03-16 00:35:29 -0400 |
| commit | 7b46ecd5fcebf381a7bde966db352d8fb1b8e944 (patch) | |
| tree | 852d2bb05ed32e274d63a0a360f00b33c8d21a86 /drivers/acpi/osl.c | |
| parent | a140449584522c3eea1bb381f746d40939e6f62a (diff) | |
| download | linux-7b46ecd5fcebf381a7bde966db352d8fb1b8e944.tar.gz linux-7b46ecd5fcebf381a7bde966db352d8fb1b8e944.tar.bz2 linux-7b46ecd5fcebf381a7bde966db352d8fb1b8e944.zip | |
Revert "ACPI: make some IO ports off-limits to AML"
This reverts commit 5ec5d38a1c8af255ffc481c81eef13e9155524b3.
because it caused spurious dmesg warmings.
We'll implement the check for off-limit ports
in a more clever way in the future.
http://bugzilla.kernel.org/show_bug.cgi?id=12758
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/osl.c')
| -rw-r--r-- | drivers/acpi/osl.c | 50 |
1 files changed, 0 insertions, 50 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index b3193ec0a2ef..1e35f342957c 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -1317,54 +1317,6 @@ acpi_os_validate_interface (char *interface) return AE_SUPPORT; } -#ifdef CONFIG_X86 - -struct aml_port_desc { - uint start; - uint end; - char* name; - char warned; -}; - -static struct aml_port_desc aml_invalid_port_list[] = { - {0x20, 0x21, "PIC0", 0}, - {0xA0, 0xA1, "PIC1", 0}, - {0x4D0, 0x4D1, "ELCR", 0} -}; - -/* - * valid_aml_io_address() - * - * if valid, return true - * else invalid, warn once, return false - */ -static bool valid_aml_io_address(uint address, uint length) -{ - int i; - int entries = sizeof(aml_invalid_port_list) / sizeof(struct aml_port_desc); - - for (i = 0; i < entries; ++i) { - if ((address >= aml_invalid_port_list[i].start && - address <= aml_invalid_port_list[i].end) || - (address + length >= aml_invalid_port_list[i].start && - address + length <= aml_invalid_port_list[i].end)) - { - if (!aml_invalid_port_list[i].warned) - { - printk(KERN_ERR "ACPI: Denied BIOS AML access" - " to invalid port 0x%x+0x%x (%s)\n", - address, length, - aml_invalid_port_list[i].name); - aml_invalid_port_list[i].warned = 1; - } - return false; /* invalid */ - } - } - return true; /* valid */ -} -#else -static inline bool valid_aml_io_address(uint address, uint length) { return true; } -#endif /****************************************************************************** * * FUNCTION: acpi_os_validate_address @@ -1394,8 +1346,6 @@ acpi_os_validate_address ( switch (space_id) { case ACPI_ADR_SPACE_SYSTEM_IO: - if (!valid_aml_io_address(address, length)) - return AE_AML_ILLEGAL_ADDRESS; case ACPI_ADR_SPACE_SYSTEM_MEMORY: /* Only interference checks against SystemIO and SytemMemory are needed */ |