ACPICA: Remove extra write for acpi_hw_clear_acpi_status (227243a0) · Commits · 戴 / test

drivers/acpi/acpica/hwregs.c

+3 −14

Original line number	Diff line number	Diff line
		@@ -71,7 +71,6 @@ acpi_hw_write_multiple(u32 value,
		* RETURN: Status
		*
		* DESCRIPTION: Clears all fixed and general purpose status bits
		* THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
		*
		******************************************************************************/

		@@ -82,13 +81,13 @@ acpi_status acpi_hw_clear_acpi_status(void)

		ACPI_FUNCTION_TRACE(hw_clear_acpi_status);

		ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %04X\n",
		ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %0llX\n",
		ACPI_BITMASK_ALL_FIXED_STATUS,
		(u16) acpi_gbl_xpm1a_status.address));
		acpi_gbl_xpm1a_status.address));

		lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock);

		/* Clear the fixed events */
		/* Clear the fixed events in PM1 A/B */

		status = acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS,
		ACPI_BITMASK_ALL_FIXED_STATUS);
		@@ -96,16 +95,6 @@ acpi_status acpi_hw_clear_acpi_status(void)
		goto unlock_and_exit;
		}

		/* Write PM1B register if present */

		if (acpi_gbl_xpm1b_status.address) {
		status = acpi_write(ACPI_BITMASK_ALL_FIXED_STATUS,
		&acpi_gbl_xpm1b_status);
		if (ACPI_FAILURE(status)) {
		goto unlock_and_exit;
		}
		}

		/* Clear the GPE Bits in all GPE registers in all GPE blocks */

		status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL);