[PATCH 1/2] ACPI: EC: Simplify boot EC checks in acpi_ec_add()

From: Rafael J. Wysocki
Date: Tue Jan 22 2019 - 07:00:52 EST


From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

Consolidate boot EC checks in acpi_ec_add(), put the acpi_is_boot_ec()
checks directly into it and drop the latter.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
drivers/acpi/ec.c | 20 +++++---------------
1 file changed, 5 insertions(+), 15 deletions(-)

Index: linux-pm/drivers/acpi/ec.c
===================================================================
--- linux-pm.orig/drivers/acpi/ec.c
+++ linux-pm/drivers/acpi/ec.c
@@ -1558,16 +1558,6 @@ static bool acpi_ec_ecdt_get_handle(acpi
return true;
}

-static bool acpi_is_boot_ec(struct acpi_ec *ec)
-{
- if (!boot_ec)
- return false;
- if (ec->command_addr == boot_ec->command_addr &&
- ec->data_addr == boot_ec->data_addr)
- return true;
- return false;
-}
-
static int acpi_ec_add(struct acpi_device *device)
{
struct acpi_ec *ec = NULL;
@@ -1579,22 +1569,22 @@ static int acpi_ec_add(struct acpi_devic
strcpy(acpi_device_class(device), ACPI_EC_CLASS);

if (!strcmp(acpi_device_hid(device), ACPI_ECDT_HID)) {
- is_ecdt = true;
ec = boot_ec;
+ boot_ec_is_ecdt = true;
+ is_ecdt = true;
} else {
ec = acpi_ec_alloc();
if (!ec)
return -ENOMEM;
+
status = ec_parse_device(device->handle, 0, ec, NULL);
if (status != AE_CTRL_TERMINATE) {
ret = -EINVAL;
goto err_alloc;
}
- }

- if (acpi_is_boot_ec(ec)) {
- boot_ec_is_ecdt = is_ecdt;
- if (!is_ecdt) {
+ if (boot_ec && ec->command_addr == boot_ec->command_addr &&
+ ec->data_addr == boot_ec->data_addr) {
/*
* Trust PNP0C09 namespace location rather than
* ECDT ID. But trust ECDT GPE rather than _GPE