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| author | Bob Moore <robert.moore@intel.com> | 2015-08-25 10:30:00 +0800 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-08-25 23:11:32 +0200 |
| commit | 47cdf8c692d5a64855a7aff83800d5bc5c925d7c (patch) | |
| tree | dad5bbe4f94fac2c620bd327e8924b59f08f3faf /drivers/acpi | |
| parent | e69ab9a99e1d112045dd87902e467daec0d189da (diff) | |
| download | linux-47cdf8c692d5a64855a7aff83800d5bc5c925d7c.tar.bz2 | |
ACPICA: Make the max-number-of-loops runtime configurable
ACPICA commit a9d9c2d0c2d077bb3175ec9c252cf0e5da3efd45
Was previously compile-time only.
Add support option for acpiexec.
Link: https://github.com/acpica/acpica/commit/a9d9c2d0
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>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpica/acglobal.h | 4 | ||||
| -rw-r--r-- | drivers/acpi/acpica/dscontrol.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/acpica/utinit.c | 1 |
3 files changed, 6 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index c5971923cba4..03c443b87c76 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -236,6 +236,10 @@ ACPI_INIT_GLOBAL(u32, acpi_gbl_nesting_level, 0); ACPI_GLOBAL(struct acpi_thread_state *, acpi_gbl_current_walk_list); +/* Maximum number of While() loop iterations before forced abort */ + +ACPI_GLOBAL(u16, acpi_gbl_max_loop_iterations); + /* Control method single step flag */ ACPI_GLOBAL(u8, acpi_gbl_cm_single_step); diff --git a/drivers/acpi/acpica/dscontrol.c b/drivers/acpi/acpica/dscontrol.c index 39da9da62bbf..435fc16e2f83 100644 --- a/drivers/acpi/acpica/dscontrol.c +++ b/drivers/acpi/acpica/dscontrol.c @@ -212,7 +212,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state, */ control_state->control.loop_count++; if (control_state->control.loop_count > - ACPI_MAX_LOOP_ITERATIONS) { + acpi_gbl_max_loop_iterations) { status = AE_AML_INFINITE_LOOP; break; } diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c index 7f897c63aa5b..28ab3a1d5ec1 100644 --- a/drivers/acpi/acpica/utinit.c +++ b/drivers/acpi/acpica/utinit.c @@ -207,6 +207,7 @@ acpi_status acpi_ut_init_globals(void) acpi_gbl_debugger_configuration = DEBUGGER_THREADING; acpi_gbl_osi_mutex = NULL; acpi_gbl_reg_methods_executed = FALSE; + acpi_gbl_max_loop_iterations = 0xFFFF; /* Hardware oriented */ |