linux-kernel - Re: [PATCH v21 07/39] ASoC: Add SOC USB APIs for adding an USB backend

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Message-ID: <507953f7-c4da-499b-bcd7-76be0e04b766@linux.intel.com>
Date: Tue, 7 May 2024 15:26:10 -0500
From: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To: Wesley Cheng <quic_wcheng@...cinc.com>, srinivas.kandagatla@...aro.org,
 mathias.nyman@...el.com, perex@...ex.cz, conor+dt@...nel.org,
 corbet@....net, lgirdwood@...il.com, andersson@...nel.org,
 krzk+dt@...nel.org, gregkh@...uxfoundation.org, Thinh.Nguyen@...opsys.com,
 broonie@...nel.org, bgoswami@...cinc.com, tiwai@...e.com,
 bagasdotme@...il.com, robh@...nel.org, konrad.dybcio@...aro.org
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 linux-sound@...r.kernel.org, linux-usb@...r.kernel.org,
 linux-arm-msm@...r.kernel.org, linux-doc@...r.kernel.org,
 alsa-devel@...a-project.org
Subject: Re: [PATCH v21 07/39] ASoC: Add SOC USB APIs for adding an USB
 backend


> +const char *snd_soc_usb_get_components_tag(bool playback)
> +{
> +	if (playback)
> +		return "usbplaybackoffload: 1";
> +	else
> +		return "usbcaptureoffload : 1";

why are there different spaces and do we need spaces in the first place?

> +int snd_soc_usb_add_port(struct snd_soc_usb *usb)
> +{
> +	mutex_lock(&ctx_mutex);
> +	list_add_tail(&usb->list, &usb_ctx_list);
> +	mutex_unlock(&ctx_mutex);
> +
> +	return 0;

make the function return void?

> +int snd_soc_usb_remove_port(struct snd_soc_usb *usb)
> +{
> +	struct snd_soc_usb *ctx, *tmp;
> +
> +	mutex_lock(&ctx_mutex);
> +	list_for_each_entry_safe(ctx, tmp, &usb_ctx_list, list) {
> +		if (ctx == usb) {
> +			list_del(&ctx->list);
> +			break;
> +		}
> +	}
> +	mutex_unlock(&ctx_mutex);
> +
> +	return 0;

make this return void?