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authorMikko Perttunen <mperttunen@nvidia.com>2021-03-29 16:38:27 +0300
committerThierry Reding <treding@nvidia.com>2021-03-30 19:37:20 +0200
commita24f98176d1efae2c37d3438c57a624d530d9c33 (patch)
tree47144591cb2d725eb77c59aaaa2103eb06b8892b /include/linux/host1x.h
parentf8fb97c915954fc6de6513cdf277103b5c6df7b3 (diff)
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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 <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'include/linux/host1x.h')
-rw-r--r--include/linux/host1x.h9
1 files changed, 8 insertions, 1 deletions
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);