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dmaengine: allow dma support for async_tx to be toggled

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Provide a config option for blocking the allocation of dma channels to
the async_tx api.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2009-03-25 09:13:25 -07:00
parent 06164f3194
commit 729b5d1b8e
3 changed files with 32 additions and 3 deletions
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6
crypto/async_tx/async_tx.c
View file

@ -30,7 +30,7 @@
#ifdef CONFIG_DMA_ENGINE
static int __init async_tx_init(void)
{
dmaengine_get();
async_dmaengine_get();
printk(KERN_INFO "async_tx: api initialized (async)\n");
@ -39,7 +39,7 @@ static int __init async_tx_init(void)
static void __exit async_tx_exit(void)
{
dmaengine_put();
async_dmaengine_put();
}
/**
@ -56,7 +56,7 @@ __async_tx_find_channel(struct dma_async_tx_descriptor *depend_tx,
if (depend_tx &&
dma_has_cap(tx_type, depend_tx->chan->device->cap_mask))
return depend_tx->chan;
return dma_find_channel(tx_type);
return async_dma_find_channel(tx_type);
}
EXPORT_SYMBOL_GPL(__async_tx_find_channel);
#else