[PATCH 1/3] ASoC: (cosmetic) simplify dpcm_prune_paths()

[Pierre-Louis Bossart]

On 3/9/20 12:07 PM, Guennadi Liakhovetski wrote:
> Currently dpcm_prune_paths() has up to 4 nested condition and loop
> levels, which forces the code to use flags for flow control.
> Extracting widget status verification code from dpcm_prune_paths()
> into a separate function simplifies the code.
> 
> Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski at linux.intel.com>

The diff format makes it hard to review, but with --patience it looks 
fine indeed and a nice code refactoring.

Minor comment below:
> +	/* is there a valid CPU DAI widget for this BE */
> +	for_each_rtd_cpu_dai(dpcm->be, i, dai) {

this will conflict with Morimoto-san's cleanup step6 shared today.

> +	/* is there a valid CODEC DAI widget for this BE */
> +	for_each_rtd_codec_dai(dpcm->be, i, dai) {

and this as well, will be _dais, not _dai.