From a24f98176d1efae2c37d3438c57a624d530d9c33 Mon Sep 17 00:00:00 2001 From: Mikko Perttunen Date: Mon, 29 Mar 2021 16:38:27 +0300 Subject: gpu: host1x: Use different lock classes for each client To avoid false lockdep warnings, give each client lock a different lock class, passed from the initialization site by macro. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding --- include/linux/host1x.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/host1x.h b/include/linux/host1x.h index ce59a6a6a008..9eb77c87a83b 100644 --- a/include/linux/host1x.h +++ b/include/linux/host1x.h @@ -320,7 +320,14 @@ static inline struct host1x_device *to_host1x_device(struct device *dev) int host1x_device_init(struct host1x_device *device); int host1x_device_exit(struct host1x_device *device); -int host1x_client_register(struct host1x_client *client); +int __host1x_client_register(struct host1x_client *client, + struct lock_class_key *key); +#define host1x_client_register(class) \ + ({ \ + static struct lock_class_key __key; \ + __host1x_client_register(class, &__key); \ + }) + int host1x_client_unregister(struct host1x_client *client); int host1x_client_suspend(struct host1x_client *client); -- cgit v1.2.3-58-ga151