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From: Thierry Reding <thierry.reding@gmail.com>
To: Nicolin Chen <nicoleotsuka@gmail.com>
Cc: joro@8bytes.org, vdumpa@nvidia.com, jonathanh@nvidia.com,
	digetx@gmail.com, linux-tegra@vger.kernel.org,
	iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
	hch@infradead.org
Subject: Re: [PATCH v4 2/2] iommu/tegra-smmu: Expand mutex protection range
Date: Thu, 8 Oct 2020 11:56:15 +0200	[thread overview]
Message-ID: <20201008095615.GC2349275@ulmo> (raw)
In-Reply-To: <20200929061325.10197-3-nicoleotsuka@gmail.com>

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On Mon, Sep 28, 2020 at 11:13:25PM -0700, Nicolin Chen wrote:
> This is used to protect potential race condition at use_count.
> since probes of client drivers, calling attach_dev(), may run
> concurrently.
> 
> Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
> ---
> 
> Changelog
> v3->v4:
>  * Fixed typo "Expend" => "Expand"
> v2->v3:
>  * Renamed label "err_unlock" to "unlock"
> v1->v2:
>  * N/A
> 
>  drivers/iommu/tegra-smmu.c | 34 +++++++++++++++++++++-------------
>  1 file changed, 21 insertions(+), 13 deletions(-)

Acked-by: Thierry Reding <treding@nvidia.com>

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WARNING: multiple messages have this Message-ID (diff)
From: Thierry Reding <thierry.reding@gmail.com>
To: Nicolin Chen <nicoleotsuka@gmail.com>
Cc: linux-kernel@vger.kernel.org, jonathanh@nvidia.com,
	hch@infradead.org, iommu@lists.linux-foundation.org,
	linux-tegra@vger.kernel.org, digetx@gmail.com
Subject: Re: [PATCH v4 2/2] iommu/tegra-smmu: Expand mutex protection range
Date: Thu, 8 Oct 2020 11:56:15 +0200	[thread overview]
Message-ID: <20201008095615.GC2349275@ulmo> (raw)
In-Reply-To: <20200929061325.10197-3-nicoleotsuka@gmail.com>


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On Mon, Sep 28, 2020 at 11:13:25PM -0700, Nicolin Chen wrote:
> This is used to protect potential race condition at use_count.
> since probes of client drivers, calling attach_dev(), may run
> concurrently.
> 
> Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
> ---
> 
> Changelog
> v3->v4:
>  * Fixed typo "Expend" => "Expand"
> v2->v3:
>  * Renamed label "err_unlock" to "unlock"
> v1->v2:
>  * N/A
> 
>  drivers/iommu/tegra-smmu.c | 34 +++++++++++++++++++++-------------
>  1 file changed, 21 insertions(+), 13 deletions(-)

Acked-by: Thierry Reding <treding@nvidia.com>

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_______________________________________________
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https://lists.linuxfoundation.org/mailman/listinfo/iommu

  parent reply	other threads:[~2020-10-08  9:56 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-29  6:13 [PATCH v4 0/2] iommu/tegra-smmu: Two followup changes Nicolin Chen
2020-09-29  6:13 ` Nicolin Chen
2020-09-29  6:13 ` [PATCH v4 1/2] iommu/tegra-smmu: Unwrap tegra_smmu_group_get Nicolin Chen
2020-09-29  6:13   ` Nicolin Chen
2020-09-29 17:41   ` Dmitry Osipenko
2020-09-29 17:41     ` Dmitry Osipenko
2020-10-03 14:27     ` Dmitry Osipenko
2020-10-03 14:27       ` Dmitry Osipenko
2020-10-08  9:55   ` Thierry Reding
2020-10-08  9:55     ` Thierry Reding
2020-09-29  6:13 ` [PATCH v4 2/2] iommu/tegra-smmu: Expand mutex protection range Nicolin Chen
2020-09-29  6:13   ` Nicolin Chen
2020-09-29 17:42   ` Dmitry Osipenko
2020-09-29 17:42     ` Dmitry Osipenko
2020-09-30  0:31     ` Nicolin Chen
2020-09-30  0:31       ` Nicolin Chen
2020-10-03 14:28     ` Dmitry Osipenko
2020-10-03 14:28       ` Dmitry Osipenko
2020-10-08  9:56   ` Thierry Reding [this message]
2020-10-08  9:56     ` Thierry Reding
2020-11-07  8:35 ` [PATCH v4 0/2] iommu/tegra-smmu: Two followup changes Nicolin Chen
2020-11-07  8:35   ` Nicolin Chen

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