Merge branch 'acpica'

Merge ACPICA changes for 6.3-rc1:

 - Drop port I/O validation for some regions to avoid AML failures due
   to rejections of legitimate port I/O writes (Mario Limonciello).

 - Constify acpi_get_handle() pathname argument to allow its callers to
   pass conts pathnames to it (Sakari Ailus).

 - Prevent acpi_ns_simple_repair() from crashing in some cases when
   AE_AML_NO_RETURN_VALUE should be returned (Daniil Tatianin).

 - Fix typo in CDAT DSMAS struct definition (Lukas Wunner).

* acpica:
  ACPICA: Fix typo in CDAT DSMAS struct definition
  ACPICA: nsrepair: handle cases without a return value correctly
  ACPICA: Constify pathname argument for acpi_get_handle()
  ACPICA: Drop port I/O validation for some regions

3 files changed, 12 insertions, 9 deletions

diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c
index 915b26448d2c..0d392e7b0747 100644
--- a/drivers/acpi/acpica/hwvalid.c
+++ b/drivers/acpi/acpica/hwvalid.c
@@ -23,8 +23,8 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width);
  *
  * The table is used to implement the Microsoft port access rules that
  * first appeared in Windows XP. Some ports are always illegal, and some
- * ports are only illegal if the BIOS calls _OSI with a win_XP string or
- * later (meaning that the BIOS itelf is post-XP.)
+ * ports are only illegal if the BIOS calls _OSI with nothing newer than
+ * the specific _OSI strings.
  *
  * This provides ACPICA with the desired port protections and
  * Microsoft compatibility.
@@ -145,7 +145,8 @@ acpi_hw_validate_io_request(acpi_io_address address, u32 bit_width)
 
 			/* Port illegality may depend on the _OSI calls made by the BIOS */
 
-			if (acpi_gbl_osi_data >= port_info->osi_dependency) {
+			if (port_info->osi_dependency == ACPI_ALWAYS_ILLEGAL ||
+			    acpi_gbl_osi_data == port_info->osi_dependency) {
 				ACPI_DEBUG_PRINT((ACPI_DB_VALUES,
 						  "Denied AML access to port 0x%8.8X%8.8X/%X (%s 0x%.4X-0x%.4X)\n",
 						  ACPI_FORMAT_UINT64(address),
diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c
index 367fcd201f96..ec512e06a48e 100644
--- a/drivers/acpi/acpica/nsrepair.c
+++ b/drivers/acpi/acpica/nsrepair.c
@@ -181,8 +181,9 @@ acpi_ns_simple_repair(struct acpi_evaluate_info *info,
 	 * Try to fix if there was no return object. Warning if failed to fix.
 	 */
 	if (!return_object) {
-		if (expected_btypes && (!(expected_btypes & ACPI_RTYPE_NONE))) {
-			if (package_index != ACPI_NOT_PACKAGE_ELEMENT) {
+		if (expected_btypes) {
+			if (!(expected_btypes & ACPI_RTYPE_NONE) &&
+			    package_index != ACPI_NOT_PACKAGE_ELEMENT) {
 				ACPI_WARN_PREDEFINED((AE_INFO,
 						      info->full_pathname,
 						      ACPI_WARN_ALWAYS,
@@ -196,14 +197,15 @@ acpi_ns_simple_repair(struct acpi_evaluate_info *info,
 				if (ACPI_SUCCESS(status)) {
 					return (AE_OK);	/* Repair was successful */
 				}
-			} else {
+			}
+
+			if (expected_btypes != ACPI_RTYPE_NONE) {
 				ACPI_WARN_PREDEFINED((AE_INFO,
 						      info->full_pathname,
 						      ACPI_WARN_ALWAYS,
 						      "Missing expected return value"));
+				return (AE_AML_NO_RETURN_VALUE);
 			}
-
-			return (AE_AML_NO_RETURN_VALUE);
 		}
 	}
 
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index b2cfdfef3194..a0592d15dd37 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -44,7 +44,7 @@ static char *acpi_ns_copy_device_id(struct acpi_pnp_device_id *dest,
 
 acpi_status
 acpi_get_handle(acpi_handle parent,
-		acpi_string pathname, acpi_handle *ret_handle)
+		const char *pathname, acpi_handle *ret_handle)
 {
 	acpi_status status;
 	struct acpi_namespace_node *node = NULL;