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Commit 765e3d8a authored by David Brownell's avatar David Brownell Committed by Linus Torvalds
Browse files

[PATCH] rm pointless dmaengine exports 



This removes several pointless exports from drivers/dma/dmaengine.c; the
dma_async_memcpy_*() functions are inlined by <linux/dmaengine.h> so those
exports are inappropriate.

It also moves the existing EXPORT_SYMBOL declarations next to their functions,
so it's now trivial to confirm one-to-one correspondence between exports and
nonstatic symbols.

Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
Acked-by: default avatarChris Leech <christopher.leech@intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent bed31ed9

drivers/dma/dmaengine.c

+6 −12
Original line number Original line Diff line number Diff line
@@ -176,6 +176,7 @@ void dma_chan_cleanup(struct kref *kref) 
	chan->client = NULL;

	chan->client = NULL;

	kref_put(&chan->device->refcount, dma_async_device_cleanup);

	kref_put(&chan->device->refcount, dma_async_device_cleanup);

}

}

EXPORT_SYMBOL(dma_chan_cleanup);





static void dma_chan_free_rcu(struct rcu_head *rcu)

static void dma_chan_free_rcu(struct rcu_head *rcu)

{

{
@@ -261,6 +262,7 @@ struct dma_client *dma_async_client_register(dma_event_callback event_callback) 




	return client;

	return client;

}

}

EXPORT_SYMBOL(dma_async_client_register);





/**

/**

 * dma_async_client_unregister - unregister a client and free the &dma_client

 * dma_async_client_unregister - unregister a client and free the &dma_client
@@ -287,6 +289,7 @@ void dma_async_client_unregister(struct dma_client *client) 
	kfree(client);

	kfree(client);

	dma_chans_rebalance();

	dma_chans_rebalance();

}

}

EXPORT_SYMBOL(dma_async_client_unregister);





/**

/**

 * dma_async_client_chan_request - request DMA channels

 * dma_async_client_chan_request - request DMA channels
@@ -304,6 +307,7 @@ void dma_async_client_chan_request(struct dma_client *client, 
	client->chans_desired = number;

	client->chans_desired = number;

	dma_chans_rebalance();

	dma_chans_rebalance();

}

}

EXPORT_SYMBOL(dma_async_client_chan_request);





/**

/**

 * dma_async_device_register - registers DMA devices found

 * dma_async_device_register - registers DMA devices found
@@ -346,6 +350,7 @@ int dma_async_device_register(struct dma_device *device) 




	return 0;

	return 0;

}

}

EXPORT_SYMBOL(dma_async_device_register);





/**

/**

 * dma_async_device_cleanup - function called when all references are released

 * dma_async_device_cleanup - function called when all references are released
@@ -390,23 +395,12 @@ void dma_async_device_unregister(struct dma_device *device) 
	kref_put(&device->refcount, dma_async_device_cleanup);

	kref_put(&device->refcount, dma_async_device_cleanup);

	wait_for_completion(&device->done);

	wait_for_completion(&device->done);

}

}

EXPORT_SYMBOL(dma_async_device_unregister);





static int __init dma_bus_init(void)

static int __init dma_bus_init(void)

{

{

	mutex_init(&dma_list_mutex);

	mutex_init(&dma_list_mutex);

	return class_register(&dma_devclass);

	return class_register(&dma_devclass);

}

}



subsys_initcall(dma_bus_init);

subsys_initcall(dma_bus_init);

EXPORT_SYMBOL(dma_async_client_register);

EXPORT_SYMBOL(dma_async_client_unregister);

EXPORT_SYMBOL(dma_async_client_chan_request);

EXPORT_SYMBOL(dma_async_memcpy_buf_to_buf);

EXPORT_SYMBOL(dma_async_memcpy_buf_to_pg);

EXPORT_SYMBOL(dma_async_memcpy_pg_to_pg);

EXPORT_SYMBOL(dma_async_memcpy_complete);

EXPORT_SYMBOL(dma_async_memcpy_issue_pending);

EXPORT_SYMBOL(dma_async_device_register);

EXPORT_SYMBOL(dma_async_device_unregister);

EXPORT_SYMBOL(dma_chan_cleanup);