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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-04-28 01:53:50 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-04-28 01:53:50 +0200
commit0ad4991cae47c0d3ae93e1531ba5572d223d700c (patch)
tree65ef2e310b84c159b56630f36e2d9c75c3c9f9e6 /drivers/acpi/acpica/tbfadt.c
parent2467d7b7037438f2d1fed826fc5217dddf4b37fb (diff)
parent8ee88d591154ad7d9d413ba150a1ddbb8c2bf198 (diff)
Merge branch 'acpica'
* acpica: (33 commits) ACPICA: Update version to 20130328 ACPICA: Add a lock to the internal object reference count mechanism ACPICA: Fix a format string for 64-bit generation ACPICA: Remove FORCE_DELETE option for global reference count mechanism ACPICA: Improve error message for Index() operator ACPICA: FADT: Remove extraneous warning for very large GPE registers ACPICA: Fix a typo in a function header, no functional change ACPICA: Fix a typo in an error message ACPICA: Fix for some comments/headers ACPICA: _OSI Support: handle any errors from acpi_os_acquire_mutex() ACPICA: Predefine names: Add allowed argument types to master info table ACPI: Set length even for TYPE_END_TAG acpi resource ACPICA: Update version to 20130214 ACPICA: Object repair: Allow 0-length packages for variable-length packages ACPICA: Disassembler: Add warnings for unresolved control methods ACPICA: Return object repair: Add resource template repairs ACPICA: Return object repair: Add string-to-unicode conversion ACPICA: Split object conversion functions to a new file ACPICA: Add mechanism for early object repairs on a per-name basis ACPICA: Remove trailing comma in enum declarations ...
Diffstat (limited to 'drivers/acpi/acpica/tbfadt.c')
-rw-r--r--drivers/acpi/acpica/tbfadt.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 74181bf181ec..33b00d22300a 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -559,8 +559,12 @@ static void acpi_tb_validate_fadt(void)
/*
* For each extended field, check for length mismatch between the
* legacy length field and the corresponding 64-bit X length field.
+ * Note: If the legacy length field is > 0xFF bits, ignore this
+ * check. (GPE registers can be larger than the 64-bit GAS structure
+ * can accomodate, 0xFF bits).
*/
if (address64->address &&
+ (ACPI_MUL_8(length) <= ACPI_UINT8_MAX) &&
(address64->bit_width != ACPI_MUL_8(length))) {
ACPI_BIOS_WARNING((AE_INFO,
"32/64X length mismatch in FADT/%s: %u/%u",