From d70d141bb15f328528f94557ddf754abeb027365 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 14 Dec 2023 12:07:55 +0100 Subject: ACPI: utils: Introduce helper for _DEP list lookup The ACPI LPSS driver and the Surface platform driver code use almost the same code pattern for checking if one ACPI device is present in the list returned by _DEP for another ACPI device. To reduce the resulting code duplication, introduce a helper for that called acpi_device_dep() and invoke it from both places. No intentional functional impact. Signed-off-by: Rafael J. Wysocki Reviewed-by: Mika Westerberg --- drivers/platform/surface/surface_acpi_notify.c | 28 +------------------------- 1 file changed, 1 insertion(+), 27 deletions(-) (limited to 'drivers/platform') diff --git a/drivers/platform/surface/surface_acpi_notify.c b/drivers/platform/surface/surface_acpi_notify.c index 96ec052d0940..20f3870915d2 100644 --- a/drivers/platform/surface/surface_acpi_notify.c +++ b/drivers/platform/surface/surface_acpi_notify.c @@ -736,32 +736,6 @@ do { \ #define san_consumer_warn(dev, handle, fmt, ...) \ san_consumer_printk(warn, dev, handle, fmt, ##__VA_ARGS__) -static bool is_san_consumer(struct platform_device *pdev, acpi_handle handle) -{ - struct acpi_handle_list dep_devices; - acpi_handle supplier = ACPI_HANDLE(&pdev->dev); - bool ret = false; - int i; - - if (!acpi_has_method(handle, "_DEP")) - return false; - - if (!acpi_evaluate_reference(handle, "_DEP", NULL, &dep_devices)) { - san_consumer_dbg(&pdev->dev, handle, "failed to evaluate _DEP\n"); - return false; - } - - for (i = 0; i < dep_devices.count; i++) { - if (dep_devices.handles[i] == supplier) { - ret = true; - break; - } - } - - acpi_handle_list_free(&dep_devices); - return ret; -} - static acpi_status san_consumer_setup(acpi_handle handle, u32 lvl, void *context, void **rv) { @@ -770,7 +744,7 @@ static acpi_status san_consumer_setup(acpi_handle handle, u32 lvl, struct acpi_device *adev; struct device_link *link; - if (!is_san_consumer(pdev, handle)) + if (!acpi_device_dep(handle, ACPI_HANDLE(&pdev->dev))) return AE_OK; /* Ignore ACPI devices that are not present. */ -- cgit v1.2.3