linux-kernel - Re: [PATCH v2 4/4] soundwire: bus: drop redundant probe debug message

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Date: Tue, 4 Jun 2024 11:24:55 +0200
From: Johan Hovold <johan@...nel.org>
To: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Cc: Johan Hovold <johan+linaro@...nel.org>, Vinod Koul <vkoul@...nel.org>,
	Bard Liao <yung-chuan.liao@...ux.intel.com>,
	Sanyog Kale <sanyog.r.kale@...el.com>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/4] soundwire: bus: drop redundant probe debug message

On Tue, Jun 04, 2024 at 10:37:17AM +0200, Pierre-Louis Bossart wrote:
> On 6/4/24 02:52, Johan Hovold wrote:
> > Drop the redundant probe debug message which is already provided by
> > driver core. Whether probe succeeded can also be determined through
> > sysfs.

> > @@ -152,8 +152,6 @@ static int sdw_drv_probe(struct device *dev)
> >  
> >  	mutex_unlock(&slave->sdw_dev_lock);
> >  
> > -	dev_dbg(dev, "probe complete\n");
> > -
> >  	return 0;
> >  }
> 
> I don't see the point of removing this, we've used it for the last 5
> years to figure out when the probe complete vs. when the device becomes
> attached. It's a simple log that helped us immensely with race
> conditions, etc.

Fair enough. Soundwire probing is indeed a bit of a mess.

Johan