linux-kernel - Re: [PATCH v2 2/2] ASoC: tlv320adcx140: Add the tlv320adcx140 codec driver family

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Date:   Tue, 18 Feb 2020 19:47:18 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Dan Murphy <dmurphy@...com>
Cc:     lgirdwood@...il.com, perex@...ex.cz, tiwai@...e.com,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/2] ASoC: tlv320adcx140: Add the tlv320adcx140 codec
 driver family

On Tue, Feb 18, 2020 at 01:32:05PM -0600, Dan Murphy wrote:
> On 2/18/20 1:23 PM, Mark Brown wrote:
> > On Tue, Feb 18, 2020 at 11:21:40AM -0600, Dan Murphy wrote:

> > > +	if (unlikely(!tx_mask)) {
> > > +		dev_err(component->dev, "tx and rx masks need to be non 0\n");
> > > +		return -EINVAL;
> > > +	}

> > Do you really need the unlikely() annotation here?  This is *hopefully*
> > not a hot path.

> I was copying the code from tlv320aic3x.c as suggested by one our audio guys
> here in TI.

> I can remove it if you desire

It'd be better, they don't really help anything outside of fast paths.

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