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From: Tzung-Bi Shih <tzungbi@google.com>
To: kbuild test robot <lkp@intel.com>, Guenter Roeck <groeck@google.com>
Cc: Gwendal Grignou <gwendal@google.com>,
	devicetree@vger.kernel.org,
	ALSA development <alsa-devel@alsa-project.org>,
	Jimmy Cheng-Yi Chiang <cychiang@google.com>,
	Nicolas Boichat <drinkcat@google.com>,
	robh+dt@kernel.org, Mark Brown <broonie@kernel.org>,
	kbuild-all@01.org,
	Enric Balletbo i Serra <enric.balletbo@collabora.com>,
	Benson Leung <bleung@google.com>, Dylan Reid <dgreid@google.com>
Subject: Re: [alsa-devel] [PATCH v2 07/10] ASoC: cros_ec_codec: support WoV
Date: Mon, 7 Oct 2019 15:04:24 +0800
Message-ID: <CA+Px+wUqwjPKkbZAfJ0+a6JAhxRqGLqq_JRY6Qwoh49JrxKr8w@mail.gmail.com> (raw)
In-Reply-To: <201910060040.RXI5XB2W%lkp@intel.com>

On Sun, Oct 6, 2019 at 12:54 AM kbuild test robot <lkp@intel.com> wrote:
> url:    https://github.com/0day-ci/linux/commits/Tzung-Bi-Shih/ASoC-mediatek-mt8183-mt6358-ts3a227-max98357-support-WoV/20191005-171021
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
> reproduce:
>         # apt-get install sparse
>         # sparse version: v0.6.1-rc1-42-g38eda53-dirty
>         make ARCH=x86_64 allmodconfig
>         make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@intel.com>
>
>
> sparse warnings: (new ones prefixed by >>)
>
> >> sound/soc/codecs/cros_ec_codec.c:430:39: sparse: sparse: incorrect type in return expression (different address spaces) @@    expected void * @@    got void [noderef] <asvoid * @@
> >> sound/soc/codecs/cros_ec_codec.c:430:39: sparse:    expected void *
> >> sound/soc/codecs/cros_ec_codec.c:430:39: sparse:    got void [noderef] <asn:2> *
> >> sound/soc/codecs/cros_ec_codec.c:549:69: sparse: sparse: incorrect type in argument 2 (different address spaces) @@    expected void const volatile [noderef] <asn:2> * @@    got latile [noderef] <asn:2> * @@
> >> sound/soc/codecs/cros_ec_codec.c:549:69: sparse:    expected void const volatile [noderef] <asn:2> *
> >> sound/soc/codecs/cros_ec_codec.c:549:69: sparse:    got unsigned char [usertype] *addr
> >> sound/soc/codecs/cros_ec_codec.c:698:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@    expected void volatile [noderef] <asn:2> * @@    got latile [noderef] <asn:2> * @@
> >> sound/soc/codecs/cros_ec_codec.c:698:33: sparse:    expected void volatile [noderef] <asn:2> *
> >> sound/soc/codecs/cros_ec_codec.c:698:33: sparse:    got unsigned char [usertype] *wov_lang_shm_p
>    sound/soc/codecs/cros_ec_codec.c:699:48: sparse: sparse: incorrect type in argument 1 (different address spaces) @@    expected void volatile [noderef] <asn:2> * @@    got latile [noderef] <asn:2> * @@
>    sound/soc/codecs/cros_ec_codec.c:699:48: sparse:    expected void volatile [noderef] <asn:2> *
> >> sound/soc/codecs/cros_ec_codec.c:699:48: sparse:    got unsigned char [usertype] *

I cannot reproduce the same sparse errors.

My commit stack: apply my patches onto broonie/sound.git for-next
$ git log --oneline
b4471777f5d8 (HEAD -> draft) ASoC: mediatek: mt8183: support WoV
b6bb558fa59d ASoC: dt-bindings: mt8183: add ec-codec
a08bede115d4 ASoC: mediatek: mt6358: support WoV
f67068fd0c91 ASoC: cros_ec_codec: support WoV
7e11271c070e ASoC: dt-bindings: cros_ec_codec: add SHM bindings
fd04f20e77d3 ASoC: cros_ec_codec: read max DMIC gain from EC codec
c008f01d5bc3 platform/chrome: cros_ec: add common commands for EC codec
50d2c1f9b1f4 ASoC: cros_ec_codec: extract DMIC EC command from I2S RX
00e5a1c121eb ASoC: cros_ec_codec: refactor I2S RX
3f0c475d6ec8 platform/chrome: cros_ec: remove unused EC feature
3877dcd0194c (mark/for-next, asoc-next) Merge branch 'asoc-5.5' into asoc-next

My reproduce steps:
$ make ARCH=x86_64 mrproper
$ make ARCH=x86_64 allmodconfig
$ make ARCH=x86_64 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' -j40
2>&1 | grep -v sched | tee log.txt
(Note: filter sched out to not get flood sparse errors)
$ grep cros_ec_codec log.txt
  CHECK   sound/soc/codecs/cros_ec_codec.c
  CC [M]  sound/soc/codecs/cros_ec_codec.o

It did not generate the same message as 0day reported.

One difference would be the sparse version (it is from "apt install"
in my environment):
$ sparse --version
0.6.0 (Debian: 0.6.0-3)
On the other hand, 0day used "v0.6.1-rc1-42-g38eda53-dirty".

Guenter, what we could do in the case?  Do you have any idea?
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Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-05  8:54 [alsa-devel] [PATCH v2 00/10] ASoC: mediatek: mt8183-mt6358-ts3a227-max98357: " Tzung-Bi Shih
2019-10-05  8:55 ` [alsa-devel] [PATCH v2 01/10] platform/chrome: cros_ec: remove unused EC feature Tzung-Bi Shih
2019-10-05  8:55 ` [alsa-devel] [PATCH v2 02/10] ASoC: cros_ec_codec: refactor I2S RX Tzung-Bi Shih
2019-10-05  8:55 ` [alsa-devel] [PATCH v2 03/10] ASoC: cros_ec_codec: extract DMIC EC command from " Tzung-Bi Shih
2019-10-05  8:55 ` [alsa-devel] [PATCH v2 04/10] platform/chrome: cros_ec: add common commands for EC codec Tzung-Bi Shih
2019-10-05  8:55 ` [alsa-devel] [PATCH v2 05/10] ASoC: cros_ec_codec: read max DMIC gain from " Tzung-Bi Shih
2019-10-11 15:14   ` Rob Herring
2019-10-05  8:55 ` [alsa-devel] [PATCH v2 06/10] ASoC: dt-bindings: cros_ec_codec: add SHM bindings Tzung-Bi Shih
2019-10-11 15:13   ` Rob Herring
2019-10-05  8:55 ` [alsa-devel] [PATCH v2 07/10] ASoC: cros_ec_codec: support WoV Tzung-Bi Shih
2019-10-05 16:53   ` kbuild test robot
2019-10-07  7:04     ` Tzung-Bi Shih [this message]
2019-10-09  7:25       ` [alsa-devel] [kbuild-all] " Rong Chen
2019-10-14 10:26         ` Tzung-Bi Shih
2019-10-05  8:55 ` [alsa-devel] [PATCH v2 08/10] ASoC: mediatek: mt6358: " Tzung-Bi Shih
2019-10-05  8:55 ` [alsa-devel] [PATCH v2 09/10] ASoC: dt-bindings: mt8183: add ec-codec Tzung-Bi Shih
2019-10-11 15:20   ` Rob Herring
2019-10-12 15:15     ` Tzung-Bi Shih
2019-10-05  8:55 ` [alsa-devel] [PATCH v2 10/10] ASoC: mediatek: mt8183: support WoV Tzung-Bi Shih

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