From: Wolfram Sang <wsa@the-dreams.de>
To: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: linux-i2c@vger.kernel.org, linux-sh@vger.kernel.org
Subject: Re: [PATCH v2] Revert "i2c: rcar: remove spinlock"
Date: Thu, 4 Sep 2014 20:05:59 +0200 [thread overview]
Message-ID: <20140904180559.GA3754@katana> (raw)
In-Reply-To: <1642788.pEhrsPDp4u@wasted.cogentembedded.com>
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On Sun, Aug 24, 2014 at 12:44:09AM +0400, Sergei Shtylyov wrote:
> This reverts commit 150b8be3cda54412ad7b54f5392b513b25c0aaa7.
>
> The I2C core's per-adapter locks can't protect from IRQs, so the driver still
> needs a spinlock to protect the register accesses.
>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> Cc: stable@vger.kernel.org # 3.16+
>
Applied to for-current, thanks!
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WARNING: multiple messages have this Message-ID (diff)
From: Wolfram Sang <wsa@the-dreams.de>
To: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: linux-i2c@vger.kernel.org, linux-sh@vger.kernel.org
Subject: Re: [PATCH v2] Revert "i2c: rcar: remove spinlock"
Date: Thu, 04 Sep 2014 18:05:59 +0000 [thread overview]
Message-ID: <20140904180559.GA3754@katana> (raw)
In-Reply-To: <1642788.pEhrsPDp4u@wasted.cogentembedded.com>
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On Sun, Aug 24, 2014 at 12:44:09AM +0400, Sergei Shtylyov wrote:
> This reverts commit 150b8be3cda54412ad7b54f5392b513b25c0aaa7.
>
> The I2C core's per-adapter locks can't protect from IRQs, so the driver still
> needs a spinlock to protect the register accesses.
>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
> Cc: stable@vger.kernel.org # 3.16+
>
Applied to for-current, thanks!
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next prev parent reply other threads:[~2014-09-04 18:05 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-23 20:44 [PATCH v2] Revert "i2c: rcar: remove spinlock" Sergei Shtylyov
2014-08-23 20:44 ` Sergei Shtylyov
2014-08-24 6:45 ` Wolfram Sang
2014-08-24 6:45 ` Wolfram Sang
2014-08-24 11:30 ` Sergei Shtylyov
2014-08-24 11:30 ` Sergei Shtylyov
[not found] ` <53F9CCE7.3010006-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
2014-08-25 3:40 ` Wolfram Sang
2014-08-25 3:40 ` Wolfram Sang
2014-08-25 11:35 ` Sergei Shtylyov
2014-08-25 11:35 ` Sergei Shtylyov
[not found] ` <53FB1F90.6080704-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
2014-08-25 14:33 ` Wolfram Sang
2014-08-25 14:33 ` Wolfram Sang
2014-09-02 17:13 ` Sergei Shtylyov
2014-09-02 17:13 ` Sergei Shtylyov
2014-09-02 17:18 ` Wolfram Sang
2014-09-02 17:18 ` Wolfram Sang
2014-09-02 17:28 ` Sergei Shtylyov
2014-09-02 17:28 ` Sergei Shtylyov
2014-09-02 17:45 ` Wolfram Sang
2014-09-02 17:45 ` Wolfram Sang
2014-09-02 18:10 ` Sergei Shtylyov
2014-09-02 18:10 ` Sergei Shtylyov
2014-09-04 18:05 ` Wolfram Sang [this message]
2014-09-04 18:05 ` Wolfram Sang
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