[PATCH 1/8] ARM: dma-mapping: remove offset parameter to prepare for generic dma_ops

Michal Nazarewicz mina86 at mina86.com
Mon Jun 20 04:35:36 EDT 2011


On Mon, 20 Jun 2011 09:50:06 +0200, Marek Szyprowski  
<m.szyprowski at samsung.com> wrote:
> +static inline void dma_sync_single_for_cpu(struct device *dev,

I wouldn't really put inline here or in the function below.

> +		dma_addr_t handle, size_t size, enum dma_data_direction dir)
> +{
> +	BUG_ON(!valid_dma_direction(dir));
> +
> +	debug_dma_sync_single_for_cpu(dev, handle, size, dir);
> +
> +	if (!dmabounce_sync_for_cpu(dev, handle, size, dir))
> +		return;
> +
> +	__dma_single_dev_to_cpu(dma_to_virt(dev, handle), size, dir);

I know it is just copy'n'paste but how about:

	if (dmabounce_sync_for_cpu(dev, handle, size, dir))
		__dma_single_dev_to_cpu(dma_to_virt(dev, handle), size, dir);

> +}
> +
> +static inline void dma_sync_single_for_device(struct device *dev,
> +		dma_addr_t handle, size_t size, enum dma_data_direction dir)
> +{
> +	BUG_ON(!valid_dma_direction(dir));
> +
> +	debug_dma_sync_single_for_device(dev, handle, size, dir);
> +
> +	if (!dmabounce_sync_for_device(dev, handle, size, dir))
> +		return;
> +
> +	__dma_single_cpu_to_dev(dma_to_virt(dev, handle), size, dir);

Same as above.

> +}
> +
>  /**
>   * dma_sync_single_range_for_cpu
>   * @dev: valid struct device pointer, or NULL for ISA and EISA-like  
> devices

-- 
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.o. | Liege of Serenely Enlightened Majesty of      o' \,=./ `o
..o | Computer Science,  Michal "mina86" Nazarewicz    (o o)
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