ACPICA: Clear all non-wakeup GPEs in acpi_hw_enable_wakeup_gpe_block()

Since acpi_hw_enable_wakeup_gpe_block() is currently always called
after disabling all GPEs, it can actually write zeros to all
non-wakeup enable bits unconditionally.

That will be useful going forward for disabling runtime GPEs and
enabling wakeup GPEs in one go instead of doing that in two steps
(disable runtime and enable wakeup) which in theory may lead to a
loss of a wakeup event.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index 2e6caab..ea62d40 100644 (file)
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -396,11 +396,11 @@ acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
        /* Examine each GPE Register within the block */
 
        for (i = 0; i < gpe_block->register_count; i++) {
-               if (!gpe_block->register_info[i].enable_for_wake) {
-                       continue;
-               }
 
-               /* Enable all "wake" GPEs in this register */
+               /*
+                * Enable all "wake" GPEs in this register and disable the
+                * remaining ones.
+                */
 
                status =
                    acpi_hw_write(gpe_block->register_info[i].enable_for_wake,