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Message-ID: <ff8d0da4-10f7-31a7-5cf9-7a4c0e009192@opensource.cirrus.com>
Date:   Mon, 5 Jun 2023 13:50:54 +0100
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Subject: Re: [PATCH RESEND v1 2/3] ALSA: hda: cs35l41: Fix endian conversions
To:     Takashi Iwai <tiwai@suse.de>
CC:     Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
        <alsa-devel@alsa-project.org>, <linux-kernel@vger.kernel.org>,
        <patches@opensource.cirrus.com>
References: <20230525135955.2108140-1-sbinding@opensource.cirrus.com>
 <20230525135955.2108140-3-sbinding@opensource.cirrus.com>
 <87zg5eidcb.wl-tiwai@suse.de>
From:   Stefan Binding <sbinding@opensource.cirrus.com>
In-Reply-To: <87zg5eidcb.wl-tiwai@suse.de>
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Hi Takashi,

On 05/06/2023 08:21, Takashi Iwai wrote:
> On Thu, 25 May 2023 15:59:54 +0200,
> Stefan Binding wrote:
>> @@ -379,10 +379,10 @@ static int cs35l41_save_calibration(struct cs35l41_hda *cs35l41)
>>   
>>   				/* Calibration can only be applied whilst the DSP is not running */
>>   				ret = cs35l41_apply_calibration(cs35l41,
>> -								cpu_to_be32(cl->calAmbient),
>> -								cpu_to_be32(cl->calR),
>> -								cpu_to_be32(cl->calStatus),
>> -								cpu_to_be32(cl->calR + 1));
>> +								(__be32)cpu_to_be32(cl->calAmbient),
>> +								(__be32)cpu_to_be32(cl->calR),
>> +								(__be32)cpu_to_be32(cl->calStatus),
>> +								(__be32)cpu_to_be32(cl->calR + 1));
> Do we really need those cast?  Even if yes, it must be with __force
> prefix for the endian cast in general.

These casts were added because we found some warnings when we ran the 
static analyzer sparse locally.
I think these warnings are very minor, and we can drop this patch if you 
prefer?

Thanks,

Stefan

>
> thanks,
>
> Takashi