2020-07-07 19:18:24

by Pierre-Louis Bossart

[permalink] [raw]
Subject: [PATCH v3 06/10] ASoC: sti: uniperif: fix 'defined by not used' warning

Fix W=1 warning. The table uni_tdm_hw is declared in a header included
by multiple C file. This isn't really a good practice but for now
using __maybe_unused makes the following warning go away.

sound/soc/sti/sti_uniperif.c:12:
sound/soc/sti/uniperif.h:1351:38: warning: ‘uni_tdm_hw’ defined but
not used [-Wunused-const-variable=]
1351 | static const struct snd_pcm_hardware uni_tdm_hw = {
| ^~~~~~~~~~

Signed-off-by: Pierre-Louis Bossart <[email protected]>
---
sound/soc/sti/uniperif.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/sti/uniperif.h b/sound/soc/sti/uniperif.h
index 2dc2da5d458b..a16adeb7c1e9 100644
--- a/sound/soc/sti/uniperif.h
+++ b/sound/soc/sti/uniperif.h
@@ -1348,7 +1348,7 @@ struct sti_uniperiph_data {
struct sti_uniperiph_dai dai_data;
};

-static const struct snd_pcm_hardware uni_tdm_hw = {
+static __maybe_unused const struct snd_pcm_hardware uni_tdm_hw = {
.info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID,
--
2.25.1


2020-07-08 09:13:54

by Arnaud POULIQUEN

[permalink] [raw]
Subject: Re: [PATCH v3 06/10] ASoC: sti: uniperif: fix 'defined by not used' warning

Hi Pierre-Louis,

On 7/7/20 9:16 PM, Pierre-Louis Bossart wrote:
> Fix W=1 warning. The table uni_tdm_hw is declared in a header included
> by multiple C file. This isn't really a good practice but for now
> using __maybe_unused makes the following warning go away.
>
> sound/soc/sti/sti_uniperif.c:12:
> sound/soc/sti/uniperif.h:1351:38: warning: ‘uni_tdm_hw’ defined but
> not used [-Wunused-const-variable=]
> 1351 | static const struct snd_pcm_hardware uni_tdm_hw = {
> | ^~~~~~~~~~
>
> Signed-off-by: Pierre-Louis Bossart <[email protected]>

Thanks for the patch,
Seems that the same patch has already been proposed by Lee:
https://www.spinics.net/lists/arm-kernel/msg820327.html

Regards,
Arnaud

> ---
> sound/soc/sti/uniperif.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/sound/soc/sti/uniperif.h b/sound/soc/sti/uniperif.h
> index 2dc2da5d458b..a16adeb7c1e9 100644
> --- a/sound/soc/sti/uniperif.h
> +++ b/sound/soc/sti/uniperif.h
> @@ -1348,7 +1348,7 @@ struct sti_uniperiph_data {
> struct sti_uniperiph_dai dai_data;
> };
>
> -static const struct snd_pcm_hardware uni_tdm_hw = {
> +static __maybe_unused const struct snd_pcm_hardware uni_tdm_hw = {
> .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
> SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP |
> SNDRV_PCM_INFO_MMAP_VALID,
>

2020-07-08 12:57:02

by Pierre-Louis Bossart

[permalink] [raw]
Subject: Re: [PATCH v3 06/10] ASoC: sti: uniperif: fix 'defined by not used' warning



On 7/8/20 4:11 AM, Arnaud POULIQUEN wrote:
> Hi Pierre-Louis,
>
> On 7/7/20 9:16 PM, Pierre-Louis Bossart wrote:
>> Fix W=1 warning. The table uni_tdm_hw is declared in a header included
>> by multiple C file. This isn't really a good practice but for now
>> using __maybe_unused makes the following warning go away.
>>
>> sound/soc/sti/sti_uniperif.c:12:
>> sound/soc/sti/uniperif.h:1351:38: warning: ‘uni_tdm_hw’ defined but
>> not used [-Wunused-const-variable=]
>> 1351 | static const struct snd_pcm_hardware uni_tdm_hw = {
>> | ^~~~~~~~~~
>>
>> Signed-off-by: Pierre-Louis Bossart <[email protected]>
>
> Thanks for the patch,
> Seems that the same patch has already been proposed by Lee:
> https://www.spinics.net/lists/arm-kernel/msg820327.html

that's right, we both fixed the same things, and this is the merged series.
Do you mind providing a tag if you're ok with the change?

> Regards,
> Arnaud
>
>> ---
>> sound/soc/sti/uniperif.h | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/sound/soc/sti/uniperif.h b/sound/soc/sti/uniperif.h
>> index 2dc2da5d458b..a16adeb7c1e9 100644
>> --- a/sound/soc/sti/uniperif.h
>> +++ b/sound/soc/sti/uniperif.h
>> @@ -1348,7 +1348,7 @@ struct sti_uniperiph_data {
>> struct sti_uniperiph_dai dai_data;
>> };
>>
>> -static const struct snd_pcm_hardware uni_tdm_hw = {
>> +static __maybe_unused const struct snd_pcm_hardware uni_tdm_hw = {
>> .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
>> SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP |
>> SNDRV_PCM_INFO_MMAP_VALID,
>>

2020-07-08 13:36:30

by Arnaud POULIQUEN

[permalink] [raw]
Subject: Re: [PATCH v3 06/10] ASoC: sti: uniperif: fix 'defined by not used' warning

hi

On 7/8/20 2:55 PM, Pierre-Louis Bossart wrote:
>
>
> On 7/8/20 4:11 AM, Arnaud POULIQUEN wrote:
>> Hi Pierre-Louis,
>>
>> On 7/7/20 9:16 PM, Pierre-Louis Bossart wrote:
>>> Fix W=1 warning. The table uni_tdm_hw is declared in a header included
>>> by multiple C file. This isn't really a good practice but for now
>>> using __maybe_unused makes the following warning go away.
>>>
>>> sound/soc/sti/sti_uniperif.c:12:
>>> sound/soc/sti/uniperif.h:1351:38: warning: ‘uni_tdm_hw’ defined but
>>> not used [-Wunused-const-variable=]
>>> 1351 | static const struct snd_pcm_hardware uni_tdm_hw = {
>>> | ^~~~~~~~~~
>>>
>>> Signed-off-by: Pierre-Louis Bossart <[email protected]>
>>
>> Thanks for the patch,
>> Seems that the same patch has already been proposed by Lee:
>> https://www.spinics.net/lists/arm-kernel/msg820327.html
>
> that's right, we both fixed the same things, and this is the merged series.
> Do you mind providing a tag if you're ok with the change?

Sure, just need to known which one i should tag... I saw that you are discussing with Lee
by default i ack both, i let you decide which one will be merged :)

Acked-by: Arnaud Pouliquen <[email protected]>

>
>> Regards,
>> Arnaud
>>
>>> ---
>>> sound/soc/sti/uniperif.h | 2 +-
>>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/sound/soc/sti/uniperif.h b/sound/soc/sti/uniperif.h
>>> index 2dc2da5d458b..a16adeb7c1e9 100644
>>> --- a/sound/soc/sti/uniperif.h
>>> +++ b/sound/soc/sti/uniperif.h
>>> @@ -1348,7 +1348,7 @@ struct sti_uniperiph_data {
>>> struct sti_uniperiph_dai dai_data;
>>> };
>>>
>>> -static const struct snd_pcm_hardware uni_tdm_hw = {
>>> +static __maybe_unused const struct snd_pcm_hardware uni_tdm_hw = {
>>> .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
>>> SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP |
>>> SNDRV_PCM_INFO_MMAP_VALID,
>>>