[PATCH v2 1/2] ACPI: platform_profile: Add devm_platform_profile_register()

Kurt Borja
2024-12-24T14:02:46Z

Platform profile's lifetime is usually tied to a device's lifetime,
therefore add a device managed version of platform_profile_register().

Signed-off-by: Kurt Borja <kuurtb@gmail.com>
---
drivers/acpi/platform_profile.c | 29 +++++++++++++++++++++++++++++
include/linux/platform_profile.h | 1 +
2 files changed, 30 insertions(+)

diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
index 75a1415190ac..4c4200a0b1a6 100644
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -519,6 +519,35 @@ int platform_profile_remove(struct platform_profile_handler *pprof)
}
EXPORT_SYMBOL_GPL(platform_profile_remove);

+static void devm_platform_profile_release(struct device *dev, void *res)
+{
+ struct platform_profile_handler **pprof = res;
+
+ platform_profile_remove(*pprof);
+}
+
+int devm_platform_profile_register(struct platform_profile_handler *pprof)
+{
+ struct platform_profile_handler **dr;
+ int ret;
+
+ dr = devres_alloc(devm_platform_profile_release, sizeof(*dr), GFP_KERNEL);
+ if (!dr)
+ return -ENOMEM;
+
+ ret = platform_profile_register(pprof);
+ if (ret) {
+ devres_free(dr);
+ return ret;
+ }
+
+ *dr = pprof;
+ devres_add(pprof->dev, dr);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(devm_platform_profile_register);
+
static int __init platform_profile_init(void)
{
int err;
diff --git a/include/linux/platform_profile.h b/include/linux/platform_profile.h
index 0682bb4c57e5..f1cd4b65e351 100644
--- a/include/linux/platform_profile.h
+++ b/include/linux/platform_profile.h
@@ -41,6 +41,7 @@ struct platform_profile_handler {

int platform_profile_register(struct platform_profile_handler *pprof);
int platform_profile_remove(struct platform_profile_handler *pprof);
+int devm_platform_profile_register(struct platform_profile_handler *pprof);
int platform_profile_cycle(void);
void platform_profile_notify(struct platform_profile_handler *pprof);

--
2.47.1