ACPICA: Simplify configuration for "Max Loops" system parameter

ACPICA commit 857c510d70e18eecc275dd3087807a18bae8aa51

Allow for static configuration of this parameter. It is used
to abort out of infinite loops caused by non-response from
hardware.

Link: https://github.com/acpica/acpica/commit/857c510d
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c
index f91f724..1711fdf 100644 (file)
--- a/drivers/acpi/acpica/utinit.c
+++ b/drivers/acpi/acpica/utinit.c
@@ -206,7 +206,7 @@ acpi_status acpi_ut_init_globals(void)
        acpi_gbl_next_owner_id_offset = 0;
        acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
        acpi_gbl_osi_mutex = NULL;
-       acpi_gbl_max_loop_iterations = 0xFFFF;
+       acpi_gbl_max_loop_iterations = ACPI_MAX_LOOP_COUNT;
 
        /* Hardware oriented */
 

diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h
index fe2e3ac..12c2882 100644 (file)
--- a/include/acpi/acconfig.h
+++ b/include/acpi/acconfig.h
@@ -144,6 +144,10 @@
 
 #define ACPI_ADDRESS_RANGE_MAX          2
 
+/* Maximum number of While() loops before abort */
+
+#define ACPI_MAX_LOOP_COUNT             0xFFFF
+
 /******************************************************************************
  *
  * ACPI Specification constants (Do not change unless the specification changes)