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From: Jiada Wang <jiada_wang@mentor.com>
To: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: alsa-devel@alsa-project.org, lgirdwood@gmail.com,
	linux-kernel@vger.kernel.org, tiwai@suse.com, broonie@kernel.org
Subject: Re: [PATCH v2 2/2] ASoC: rsnd: ssi: remove unnesessary period_pos
Date: Thu, 7 Dec 2017 21:43:05 -0800	[thread overview]
Message-ID: <5A2A2669.4020506@mentor.com> (raw)
In-Reply-To: <87wp1y7trw.wl%kuninori.morimoto.gx@renesas.com>

Hi Morimoto-san

On 12/07/2017 01:58 AM, Kuninori Morimoto wrote:
> Hi Jiada
>
>> Further more, if the passed 'byte' amount to
>> rsnd_ssi_pointer_update() is more than byte_per_period.
>> the calculation of next_period_byte isn't correct.
> Is it really happen ??
>
> Basically, I have no objection about this patch,
> but this explanation is very strange for me...
No, I didn't see the issue,
but the implementation of rsnd_ssi_pointer_update(), behaves like
it knows all caller will always pass 'byte' no larger than byte_per_period,
without any check internally.

I am ok to remove this explanation from commit message,
what do you think?

Thanks,
Jiada
> Best regards
> ---
> Kuninori Morimoto

WARNING: multiple messages have this Message-ID (diff)
From: Jiada Wang <jiada_wang@mentor.com>
To: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: <lgirdwood@gmail.com>, <broonie@kernel.org>, <perex@perex.cz>,
	<tiwai@suse.com>, <alsa-devel@alsa-project.org>,
	<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 2/2] ASoC: rsnd: ssi: remove unnesessary period_pos
Date: Thu, 7 Dec 2017 21:43:05 -0800	[thread overview]
Message-ID: <5A2A2669.4020506@mentor.com> (raw)
In-Reply-To: <87wp1y7trw.wl%kuninori.morimoto.gx@renesas.com>

Hi Morimoto-san

On 12/07/2017 01:58 AM, Kuninori Morimoto wrote:
> Hi Jiada
>
>> Further more, if the passed 'byte' amount to
>> rsnd_ssi_pointer_update() is more than byte_per_period.
>> the calculation of next_period_byte isn't correct.
> Is it really happen ??
>
> Basically, I have no objection about this patch,
> but this explanation is very strange for me...
No, I didn't see the issue,
but the implementation of rsnd_ssi_pointer_update(), behaves like
it knows all caller will always pass 'byte' no larger than byte_per_period,
without any check internally.

I am ok to remove this explanation from commit message,
what do you think?

Thanks,
Jiada
> Best regards
> ---
> Kuninori Morimoto

  reply	other threads:[~2017-12-08  5:43 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-07  8:22 [PATCH v1 0/2] fix race condition in rsnd_ssi_pointer_update jiada_wang
2017-12-07  8:22 ` jiada_wang
2017-12-07  8:22 ` [PATCH v1 1/2] ASoC: rsnd: ssi: " jiada_wang
2017-12-07  8:22   ` jiada_wang
2017-12-07  9:45   ` Kuninori Morimoto
2017-12-07  9:45     ` Kuninori Morimoto
2017-12-08  5:35     ` Jiada Wang
2017-12-08  5:35       ` Jiada Wang
2017-12-08  6:00       ` Kuninori Morimoto
2017-12-08  6:00         ` Kuninori Morimoto
2017-12-08 18:52   ` Applied "ASoC: rsnd: ssi: fix race condition in rsnd_ssi_pointer_update" to the asoc tree Mark Brown
2017-12-08 18:52     ` Mark Brown
2017-12-09  5:22     ` Takashi Sakamoto
2017-12-09  5:22       ` Takashi Sakamoto
2017-12-11 11:38       ` Mark Brown
2017-12-11 11:38         ` Mark Brown
2018-01-09  5:42         ` Jiada Wang
2018-01-09  5:42           ` Jiada Wang
2018-01-09  6:53           ` Takashi Sakamoto
2018-01-09  8:59             ` Jiada Wang
2018-01-09  8:59               ` Jiada Wang
2017-12-07  8:22 ` [PATCH v2 2/2] ASoC: rsnd: ssi: remove unnesessary period_pos jiada_wang
2017-12-07  8:22   ` jiada_wang
2017-12-07  9:58   ` Kuninori Morimoto
2017-12-07  9:58     ` Kuninori Morimoto
2017-12-08  5:43     ` Jiada Wang [this message]
2017-12-08  5:43       ` Jiada Wang
2017-12-08  6:07       ` Kuninori Morimoto
2017-12-08  6:07         ` Kuninori Morimoto
2017-12-08 18:55   ` Applied "ASoC: rsnd: ssi: remove unnesessary period_pos" to the asoc tree Mark Brown
2017-12-08 18:55     ` Mark Brown
  -- strict thread matches above, loose matches on Subject: below --
2017-12-08  6:15 [PATCH v2 0/2] fix race condition in rsnd_ssi_pointer_update jiada_wang
2017-12-08  6:15 ` [PATCH v2 2/2] ASoC: rsnd: ssi: remove unnesessary period_pos jiada_wang
2017-12-08  6:15   ` jiada_wang

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