diff options
| -rw-r--r-- | Documentation/rpmsg.txt | 14 | ||||
| -rw-r--r-- | drivers/rpmsg/virtio_rpmsg_bus.c | 8 | ||||
| -rw-r--r-- | include/linux/rpmsg.h | 18 | ||||
| -rw-r--r-- | samples/rpmsg/rpmsg_client_sample.c | 14 |
4 files changed, 24 insertions, 30 deletions
diff --git a/Documentation/rpmsg.txt b/Documentation/rpmsg.txt index f7edc3a..a95e36a 100644 --- a/Documentation/rpmsg.txt +++ b/Documentation/rpmsg.txt @@ -249,24 +249,12 @@ MODULE_DEVICE_TABLE(rpmsg, rpmsg_driver_sample_id_table); static struct rpmsg_driver rpmsg_sample_client = { .drv.name = KBUILD_MODNAME, - .drv.owner = THIS_MODULE, .id_table = rpmsg_driver_sample_id_table, .probe = rpmsg_sample_probe, .callback = rpmsg_sample_cb, .remove = rpmsg_sample_remove, }; - -static int __init init(void) -{ - return register_rpmsg_driver(&rpmsg_sample_client); -} -module_init(init); - -static void __exit fini(void) -{ - unregister_rpmsg_driver(&rpmsg_sample_client); -} -module_exit(fini); +module_rpmsg_driver(rpmsg_sample_client); Note: a similar sample which can be built and loaded can be found in samples/rpmsg/. diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c index 1fcd27c..fe03b2a 100644 --- a/drivers/rpmsg/virtio_rpmsg_bus.c +++ b/drivers/rpmsg/virtio_rpmsg_bus.c @@ -436,17 +436,19 @@ static struct bus_type rpmsg_bus = { }; /** - * register_rpmsg_driver() - register an rpmsg driver with the rpmsg bus + * __register_rpmsg_driver() - register an rpmsg driver with the rpmsg bus * @rpdrv: pointer to a struct rpmsg_driver + * @owner: owning module/driver * * Returns 0 on success, and an appropriate error value on failure. */ -int register_rpmsg_driver(struct rpmsg_driver *rpdrv) +int __register_rpmsg_driver(struct rpmsg_driver *rpdrv, struct module *owner) { rpdrv->drv.bus = &rpmsg_bus; + rpdrv->drv.owner = owner; return driver_register(&rpdrv->drv); } -EXPORT_SYMBOL(register_rpmsg_driver); +EXPORT_SYMBOL(__register_rpmsg_driver); /** * unregister_rpmsg_driver() - unregister an rpmsg driver from the rpmsg bus diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h index 82a6739..ada50ff 100644 --- a/include/linux/rpmsg.h +++ b/include/linux/rpmsg.h @@ -169,7 +169,7 @@ struct rpmsg_driver { int register_rpmsg_device(struct rpmsg_channel *dev); void unregister_rpmsg_device(struct rpmsg_channel *dev); -int register_rpmsg_driver(struct rpmsg_driver *drv); +int __register_rpmsg_driver(struct rpmsg_driver *drv, struct module *owner); void unregister_rpmsg_driver(struct rpmsg_driver *drv); void rpmsg_destroy_ept(struct rpmsg_endpoint *); struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_channel *, @@ -177,6 +177,22 @@ struct rpmsg_endpoint *rpmsg_create_ept(struct rpmsg_channel *, int rpmsg_send_offchannel_raw(struct rpmsg_channel *, u32, u32, void *, int, bool); +/* use a macro to avoid include chaining to get THIS_MODULE */ +#define register_rpmsg_driver(drv) \ + __register_rpmsg_driver(drv, THIS_MODULE) + +/** + * module_rpmsg_driver() - Helper macro for registering an rpmsg driver + * @__rpmsg_driver: rpmsg_driver struct + * + * Helper macro for rpmsg drivers which do not do anything special in module + * init/exit. This eliminates a lot of boilerplate. Each module may only + * use this macro once, and calling it replaces module_init() and module_exit() + */ +#define module_rpmsg_driver(__rpmsg_driver) \ + module_driver(__rpmsg_driver, register_rpmsg_driver, \ + unregister_rpmsg_driver) + /** * rpmsg_send() - send a message across to the remote processor * @rpdev: the rpmsg channel diff --git a/samples/rpmsg/rpmsg_client_sample.c b/samples/rpmsg/rpmsg_client_sample.c index 59b1344..d0e249c9 100644 --- a/samples/rpmsg/rpmsg_client_sample.c +++ b/samples/rpmsg/rpmsg_client_sample.c @@ -77,24 +77,12 @@ MODULE_DEVICE_TABLE(rpmsg, rpmsg_driver_sample_id_table); static struct rpmsg_driver rpmsg_sample_client = { .drv.name = KBUILD_MODNAME, - .drv.owner = THIS_MODULE, .id_table = rpmsg_driver_sample_id_table, .probe = rpmsg_sample_probe, .callback = rpmsg_sample_cb, .remove = rpmsg_sample_remove, }; - -static int __init rpmsg_client_sample_init(void) -{ - return register_rpmsg_driver(&rpmsg_sample_client); -} -module_init(rpmsg_client_sample_init); - -static void __exit rpmsg_client_sample_fini(void) -{ - unregister_rpmsg_driver(&rpmsg_sample_client); -} -module_exit(rpmsg_client_sample_fini); +module_rpmsg_driver(rpmsg_sample_client); MODULE_DESCRIPTION("Remote processor messaging sample client driver"); MODULE_LICENSE("GPL v2"); |
