LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: Takashi Iwai <tiwai@suse.de>
Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
	rdunlap@infradead.org, YueHaibing <yuehaibing@huawei.com>,
	lgirdwood@gmail.com, broonie@kernel.org
Subject: Re: [alsa-devel] [PATCH] ASoC: SOF: Fix build error with CONFIG_SND_SOC_SOF_NOCODEC=m
Date: Fri, 10 May 2019 08:34:03 -0500	[thread overview]
Message-ID: <1e7e1908-a813-6c9b-5b88-122864d3a372@linux.intel.com> (raw)
In-Reply-To: <s5hlfzempf0.wl-tiwai@suse.de>

On 5/10/19 8:04 AM, Takashi Iwai wrote:
> On Fri, 10 May 2019 14:56:29 +0200,
> Pierre-Louis Bossart wrote:
>>
>> On 5/10/19 2:12 AM, Takashi Iwai wrote:
>>> On Fri, 10 May 2019 04:36:57 +0200,
>>> YueHaibing wrote:
>>>>
>>>> Fix gcc build error while CONFIG_SND_SOC_SOF_NOCODEC=m
>>>>
>>>> sound/soc/sof/core.o: In function `snd_sof_device_probe':
>>>> core.c:(.text+0x4af): undefined reference to `sof_nocodec_setup'
>>>>
>>>> Change SND_SOC_SOF_NOCODEC to bool to fix this.
>>>>
>>>> Reported-by: Hulk Robot <hulkci@huawei.com>
>>>> Fixes: c16211d6226d ("ASoC: SOF: Add Sound Open Firmware driver core")
>>>> Signed-off-by: YueHaibing <yuehaibing@huawei.com>
>>>
>>> This change would break things severely.  This won't allow to build it
>>> as a module any longer.
>>
>> Isn't this fixed already?
>> See the patch  'ASoC: SOF: core: fix undefined nocodec reference' and
>> Takashi's follow-up to fix the unused variable warning.
> 
> Possibly the problem still persists although I haven't seen through my
> local build tests with randconfig.  You can set SND_SOC_SOF=y and
> SND_SOC_NOCODEC=m, i.e. built-in sof-core while nocodec is a module.

YueHiabing, can you share the config and SHA1 so that we can double check?

If the problem persists, we can do something like

config SND_SOF_NOCODEC_SUPPORT
	bool "SOF nocodec mode support"

config SND_SOF_NOCODEC
	tristate

confir SND_SOC_SOF
	tristate
	select SND_SOF_NOCODEC if SND_SOF_NOCODEC_SUPPORT

that way you propagate the required dependencies

> 
> Takashi
> 
>>>
>>> A better fix would be to somehow restrict the SND_SOC_SOF_NOCODEC to
>>> align with SND_SOC_SOF, i.e. disallow SND_SOC_SOF=y &&
>>> SND_SOC_SOF_NOCODEC=m.  Because of the complex mix of select and
>>> depends-on in SOF, I'm afraid that it's not that trivial, though.
>>> There might be something I overlooked, hopefully...
>>>
>>> An easier alternative would be to replace
>>> IS_ENABLED(CONFIG_SND_SOC_SOF_NOCODEC) with
>>> IS_REACHABLE(CONFIG_SND_SOC_SOF_NOCODEC).  This assures the condition
>>> at the build time, although the error at probe might be a surprising
>>> to some users that don't know this hidden dependency.
>>>
>>>
>>> thanks,
>>>
>>> Takashi
>>>
>>>
>>>> ---
>>>>    sound/soc/sof/Kconfig | 2 +-
>>>>    1 file changed, 1 insertion(+), 1 deletion(-)
>>>>
>>>> diff --git a/sound/soc/sof/Kconfig b/sound/soc/sof/Kconfig
>>>> index b204c65..9c280c9 100644
>>>> --- a/sound/soc/sof/Kconfig
>>>> +++ b/sound/soc/sof/Kconfig
>>>> @@ -44,7 +44,7 @@ config SND_SOC_SOF_OPTIONS
>>>>    if SND_SOC_SOF_OPTIONS
>>>>      config SND_SOC_SOF_NOCODEC
>>>> -	tristate "SOF nocodec mode Support"
>>>> +	bool "SOF nocodec mode Support"
>>>>    	help
>>>>    	  This adds support for a dummy/nocodec machine driver fallback
>>>>    	  option if no known codec is detected. This is typically only
>>>> -- 
>>>> 2.7.4
>>>>
>>>>
>>>>
>>
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
> 


  reply	other threads:[~2019-05-10 13:34 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-10  2:36 YueHaibing
2019-05-10  7:12 ` Takashi Iwai
2019-05-10 12:56   ` Pierre-Louis Bossart
2019-05-10 13:04     ` Takashi Iwai
2019-05-10 13:34       ` Pierre-Louis Bossart [this message]
2019-05-10 13:41         ` [alsa-devel] " Takashi Iwai
2019-05-10 13:56           ` Takashi Iwai
2019-05-10 15:29             ` Pierre-Louis Bossart
2019-05-10 16:57               ` Takashi Iwai
2019-05-10 17:56                 ` Pierre-Louis Bossart
2019-05-10 18:05                   ` Takashi Iwai
2019-05-10 13:09   ` YueHaibing
2019-05-10 13:29 ` [PATCH V2] " YueHaibing
2019-05-10 13:36   ` Pierre-Louis Bossart
2019-05-10 13:50     ` YueHaibing
2019-05-10 16:24       ` Pierre-Louis Bossart

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1e7e1908-a813-6c9b-5b88-122864d3a372@linux.intel.com \
    --to=pierre-louis.bossart@linux.intel.com \
    --cc=alsa-devel@alsa-project.org \
    --cc=broonie@kernel.org \
    --cc=lgirdwood@gmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=rdunlap@infradead.org \
    --cc=tiwai@suse.de \
    --cc=yuehaibing@huawei.com \
    --subject='Re: [alsa-devel] [PATCH] ASoC: SOF: Fix build error with CONFIG_SND_SOC_SOF_NOCODEC=m' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).