linux-kernel - Re: [PATCH] soundwire: stream: uniquify dev

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Date:   Wed, 15 Mar 2023 15:39:11 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Bard Liao <yung-chuan.liao@...ux.intel.com>
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        pierre-louis.bossart@...ux.intel.com, bard.liao@...el.com
Subject: Re: [PATCH] soundwire: stream: uniquify dev_err() logs

On 09-03-23, 13:49, Bard Liao wrote:
> From: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
> 
> There are a couple of duplicate logs which makes harder than needed to
> follow the error flows. Add __func__ or make the log unique.
> 
> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
> Signed-off-by: Bard Liao <yung-chuan.liao@...ux.intel.com>
> ---
>  drivers/soundwire/stream.c | 18 ++++++++++--------
>  1 file changed, 10 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
> index 2e39587ed1de..dd09855caac9 100644
> --- a/drivers/soundwire/stream.c
> +++ b/drivers/soundwire/stream.c
> @@ -1389,7 +1389,7 @@ static int _sdw_prepare_stream(struct sdw_stream_runtime *stream,
>  
>  	ret = do_bank_switch(stream);
>  	if (ret < 0) {
> -		dev_err(bus->dev, "Bank switch failed: %d\n", ret);
> +		pr_err("%s: do_bank_switch failed: %d\n", __func__, ret);

why make it pr_ and loose the dev name? There is a trick to emit
function for dev_err too using dynamic debug


>  		goto restore_params;
>  	}
>  
> @@ -1477,7 +1477,7 @@ static int _sdw_enable_stream(struct sdw_stream_runtime *stream)
>  		/* Program params */
>  		ret = sdw_program_params(bus, false);
>  		if (ret < 0) {
> -			dev_err(bus->dev, "Program params failed: %d\n", ret);
> +			dev_err(bus->dev, "%s: Program params failed: %d\n", __func__, ret);
>  			return ret;
>  		}
>  
> @@ -1497,7 +1497,7 @@ static int _sdw_enable_stream(struct sdw_stream_runtime *stream)
>  
>  	ret = do_bank_switch(stream);
>  	if (ret < 0) {
> -		dev_err(bus->dev, "Bank switch failed: %d\n", ret);
> +		pr_err("%s: do_bank_switch failed: %d\n", __func__, ret);
>  		return ret;
>  	}
>  
> @@ -1567,14 +1567,14 @@ static int _sdw_disable_stream(struct sdw_stream_runtime *stream)
>  		/* Program params */
>  		ret = sdw_program_params(bus, false);
>  		if (ret < 0) {
> -			dev_err(bus->dev, "Program params failed: %d\n", ret);
> +			dev_err(bus->dev, "%s: Program params failed: %d\n", __func__, ret);
>  			return ret;
>  		}
>  	}
>  
>  	ret = do_bank_switch(stream);
>  	if (ret < 0) {
> -		pr_err("Bank switch failed: %d\n", ret);
> +		pr_err("%s: do_bank_switch failed: %d\n", __func__, ret);
>  		return ret;
>  	}
>  
> @@ -1664,7 +1664,7 @@ static int _sdw_deprepare_stream(struct sdw_stream_runtime *stream)
>  		/* Program params */
>  		ret = sdw_program_params(bus, false);
>  		if (ret < 0) {
> -			dev_err(bus->dev, "Program params failed: %d\n", ret);
> +			dev_err(bus->dev, "%s: Program params failed: %d\n", __func__, ret);
>  			return ret;
>  		}
>  	}
> @@ -1893,7 +1893,8 @@ int sdw_stream_add_master(struct sdw_bus *bus,
>  
>  	m_rt = sdw_master_rt_alloc(bus, stream);
>  	if (!m_rt) {
> -		dev_err(bus->dev, "Master runtime alloc failed for stream:%s\n", stream->name);
> +		dev_err(bus->dev, "%s: Master runtime alloc failed for stream:%s\n",
> +			__func__, stream->name);
>  		ret = -ENOMEM;
>  		goto unlock;
>  	}
> @@ -2012,7 +2013,8 @@ int sdw_stream_add_slave(struct sdw_slave *slave,
>  	 */
>  	m_rt = sdw_master_rt_alloc(slave->bus, stream);
>  	if (!m_rt) {
> -		dev_err(&slave->dev, "Master runtime alloc failed for stream:%s\n", stream->name);
> +		dev_err(&slave->dev, "%s: Master runtime alloc failed for stream:%s\n",
> +			__func__, stream->name);
>  		ret = -ENOMEM;
>  		goto unlock;
>  	}
> -- 
> 2.25.1

-- 
~Vinod