On 04/10/2018 09:46 AM, Baolin Wang wrote:
[...]
> +static int sprd_dma_slave_config(struct dma_chan *chan,
> + struct dma_slave_config *config)
> +{
> + struct sprd_dma_chn *schan = to_sprd_dma_chan(chan);
> + struct sprd_dma_config *slave_cfg =
> + container_of(config, struct sprd_dma_config, config);
> +
Please do not overload standard API with custom semantics. This makes the
driver incompatible to the API and negates the whole idea of having a common
API. E.g. this will crash when somebody passes a normal dma_slave_config
struct to this function.
> + memcpy(&schan->slave_cfg, slave_cfg, sizeof(*slave_cfg));
> + return 0;
> +}
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