ACPI / EC: Clean up EC GPE mask flag

EC_FLAGS_COMMAND_STORM is actually used to mask GPE during IRQ processing.
This patch cleans it up using more readable flag/function names.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Tested-by: Tomislav Ivek <tomislav.ivek@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/acpi/ec.c

@@ -112,8 +112,7 @@ enum {
 	EC_FLAGS_EVT_HANDLER_INSTALLED, /* _Qxx handlers installed */
 	EC_FLAGS_STARTED,		/* Driver is started */
 	EC_FLAGS_STOPPED,		/* Driver is stopped */
-	EC_FLAGS_COMMAND_STORM,		/* GPE storms occurred to the
-					 * current command processing */
+	EC_FLAGS_GPE_MASKED,		/* GPE masked */
 };
 
 #define ACPI_EC_COMMAND_POLL		0x01 /* Available for command byte */
@@ -425,19 +424,19 @@ static void acpi_ec_complete_request(struct acpi_ec *ec)
 		wake_up(&ec->wait);
 }
 
-static void acpi_ec_set_storm(struct acpi_ec *ec, u8 flag)
+static void acpi_ec_mask_gpe(struct acpi_ec *ec)
 {
-	if (!test_bit(flag, &ec->flags)) {
+	if (!test_bit(EC_FLAGS_GPE_MASKED, &ec->flags)) {
 		acpi_ec_disable_gpe(ec, false);
 		ec_dbg_drv("Polling enabled");
-		set_bit(flag, &ec->flags);
+		set_bit(EC_FLAGS_GPE_MASKED, &ec->flags);
 	}
 }
 
-static void acpi_ec_clear_storm(struct acpi_ec *ec, u8 flag)
+static void acpi_ec_unmask_gpe(struct acpi_ec *ec)
 {
-	if (test_bit(flag, &ec->flags)) {
-		clear_bit(flag, &ec->flags);
+	if (test_bit(EC_FLAGS_GPE_MASKED, &ec->flags)) {
+		clear_bit(EC_FLAGS_GPE_MASKED, &ec->flags);
 		acpi_ec_enable_gpe(ec, false);
 		ec_dbg_drv("Polling disabled");
 	}
@@ -464,7 +463,7 @@ static bool acpi_ec_submit_flushable_request(struct acpi_ec *ec)
 
 static void acpi_ec_submit_query(struct acpi_ec *ec)
 {
-	acpi_ec_set_storm(ec, EC_FLAGS_COMMAND_STORM);
+	acpi_ec_mask_gpe(ec);
 	if (!acpi_ec_event_enabled(ec))
 		return;
 	if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) {
@@ -480,7 +479,7 @@ static void acpi_ec_complete_query(struct acpi_ec *ec)
 	if (test_and_clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags))
 		ec_dbg_evt("Command(%s) unblocked",
 			   acpi_ec_cmd_string(ACPI_EC_COMMAND_QUERY));
-	acpi_ec_clear_storm(ec, EC_FLAGS_COMMAND_STORM);
+	acpi_ec_unmask_gpe(ec);
 }
 
 static inline void __acpi_ec_enable_event(struct acpi_ec *ec)
@@ -700,7 +699,7 @@ err:
 				++t->irq_count;
 			/* Allow triggering on 0 threshold */
 			if (t->irq_count == ec_storm_threshold)
-				acpi_ec_set_storm(ec, EC_FLAGS_COMMAND_STORM);
+				acpi_ec_mask_gpe(ec);
 		}
 	}
 out:
@@ -798,7 +797,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec,
 
 	spin_lock_irqsave(&ec->lock, tmp);
 	if (t->irq_count == ec_storm_threshold)
-		acpi_ec_clear_storm(ec, EC_FLAGS_COMMAND_STORM);
+		acpi_ec_unmask_gpe(ec);
 	ec_dbg_req("Command(%s) stopped", acpi_ec_cmd_string(t->command));
 	ec->curr = NULL;
 	/* Disable GPE for command processing (IBF=0/OBF=1) */