linux-kernel - Re: [PATCH v1 1/1] ASoC: SOF: Intel: bdw: remove duplicating driver data retrieval

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 5 Jul 2022 09:42:46 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
        sound-open-firmware@...a-project.org, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
        Daniel Baluta <daniel.baluta@....com>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Subject: Re: [PATCH v1 1/1] ASoC: SOF: Intel: bdw: remove duplicating driver
 data retrieval



On 7/3/22 09:35, Andy Shevchenko wrote:
> device_get_match_data() in ACPI case calls similar to acpi_match_device().
> Hence there is no need to duplicate the call. Just assign what is in
> the id->driver_data.
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>  sound/soc/sof/intel/bdw.c | 7 ++-----
>  1 file changed, 2 insertions(+), 5 deletions(-)
> 
> diff --git a/sound/soc/sof/intel/bdw.c b/sound/soc/sof/intel/bdw.c
> index 26df780c702e..346813aa3768 100644
> --- a/sound/soc/sof/intel/bdw.c
> +++ b/sound/soc/sof/intel/bdw.c
> @@ -674,6 +674,7 @@ static int sof_broadwell_probe(struct platform_device *pdev)
>  	id = acpi_match_device(dev->driver->acpi_match_table, dev);
>  	if (!id)
>  		return -ENODEV;
> +	desc = (const struct sof_dev_desc *)id->driver_data;
>  
>  	ret = snd_intel_acpi_dsp_driver_probe(dev, id->id);
>  	if (ret != SND_INTEL_DSP_DRIVER_ANY && ret != SND_INTEL_DSP_DRIVER_SOF) {
> @@ -681,11 +682,7 @@ static int sof_broadwell_probe(struct platform_device *pdev)
>  		return -ENODEV;
>  	}
>  
> -	desc = device_get_match_data(dev);
> -	if (!desc)
> -		return -ENODEV;
> -
> -	return sof_acpi_probe(pdev, device_get_match_data(dev));
> +	return sof_acpi_probe(pdev, desc);

Thanks Andy, we have the same code pattern in sound/soc/sof/intel/byt.c,
can we change it as part of the series to keep the two files aligned?

>  }
>  
>  /* acpi_driver definition */