ACPI: processor: Remove acpi_hwp_native_thermal_lvt_osc()

The workaround for buggy skylake BIOSes is now implemented in
acpi_processor_osc() and acpi_hwp_native_thermal_lvt_osc() has no
callers, so drop it.

Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Michal Wilczynski <michal.wilczynski@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 8f4d70a..9e35b8d 100644 (file)
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -561,7 +561,6 @@ bool __init processor_physically_present(acpi_handle handle)
 
 /* vendor specific UUID indicating an Intel platform */
 static u8 sb_uuid_str[] = "4077A616-290C-47BE-9EBD-D87058713953";
-static bool acpi_hwp_native_thermal_lvt_set;
 
 static acpi_status __init acpi_processor_osc(acpi_handle handle, u32 lvl,
                                             void *context, void **rv)
@@ -589,41 +588,6 @@ static acpi_status __init acpi_processor_osc(acpi_handle handle, u32 lvl,
        return AE_OK;
 }
 
-static acpi_status __init acpi_hwp_native_thermal_lvt_osc(acpi_handle handle,
-                                                         u32 lvl,
-                                                         void *context,
-                                                         void **rv)
-{
-       u32 capbuf[2];
-       struct acpi_osc_context osc_context = {
-               .uuid_str = sb_uuid_str,
-               .rev = 1,
-               .cap.length = 8,
-               .cap.pointer = capbuf,
-       };
-
-       if (acpi_hwp_native_thermal_lvt_set)
-               return AE_CTRL_TERMINATE;
-
-       capbuf[0] = 0x0000;
-       capbuf[1] = 0x1000; /* set bit 12 */
-
-       if (ACPI_SUCCESS(acpi_run_osc(handle, &osc_context))) {
-               if (osc_context.ret.pointer && osc_context.ret.length > 1) {
-                       u32 *capbuf_ret = osc_context.ret.pointer;
-
-                       if (capbuf_ret[1] & 0x1000) {
-                               acpi_handle_info(handle,
-                                       "_OSC native thermal LVT Acked\n");
-                               acpi_hwp_native_thermal_lvt_set = true;
-                       }
-               }
-               kfree(osc_context.ret.pointer);
-       }
-
-       return AE_OK;
-}
-
 static bool __init acpi_early_processor_osc(void)
 {
        acpi_status status;