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From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
To: Christoph Hellwig <hch@infradead.org>, Wolfram Sang <wsa@the-dreams.de>
Cc: "ulf.hansson@linaro.org" <ulf.hansson@linaro.org>,
	"wsa+renesas@sang-engineering.com"
	<wsa+renesas@sang-engineering.com>,
	"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
	"linux-renesas-soc@vger.kernel.org" 
	<linux-renesas-soc@vger.kernel.org>
Subject: RE: [PATCH v4 0/3] mmc: renesas_sdhi: improve performance by changing max_segs
Date: Tue, 4 Jun 2019 01:27:37 +0000	[thread overview]
Message-ID: <OSAPR01MB308953D4E7A7E187294F9299D8150@OSAPR01MB3089.jpnprd01.prod.outlook.com> (raw)
In-Reply-To: <20190603131151.GA6147@infradead.org>

Hi Christoph, Wolfram,

> From: Christoph Hellwig, Sent: Monday, June 3, 2019 10:12 PM
> 
> On Mon, Jun 03, 2019 at 02:57:01PM +0200, Wolfram Sang wrote:
> > Yes, dropping my rev on patch 3 is a good thing to do. I added Christoph
> > to the CC list because he gave valuable input last time.
> 
> Assuming iommu merging in a driver using the DMA API is always bogus
> as mentioned last time.  As this cover letter don't seem to include
> any higher level DMA subsystem or block changes I'll stick to my NAK.

Thank you very much for your reply again. I understood this patch series is NAK.
I'll continue to investigate DMA or block subsystem to achieve this. (I'm not sure
I can succeed or not though...)

Best regards,
Yoshihiro Shimoda


      reply	other threads:[~2019-06-04  1:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-31 11:16 [PATCH v4 0/3] mmc: renesas_sdhi: improve performance by changing max_segs Yoshihiro Shimoda
2019-05-31 11:16 ` [PATCH v4 1/3] mmc: tmio: No memory size limitation if runs on IOMMU Yoshihiro Shimoda
2019-05-31 11:16 ` [PATCH v4 2/3] mmc: tmio: Add a definition for default max_segs Yoshihiro Shimoda
2019-05-31 11:16 ` [PATCH v4 3/3] mmc: renesas_sdhi: use multiple segments if possible Yoshihiro Shimoda
2019-06-03 12:57 ` [PATCH v4 0/3] mmc: renesas_sdhi: improve performance by changing max_segs Wolfram Sang
2019-06-03 13:11   ` Christoph Hellwig
2019-06-04  1:27     ` Yoshihiro Shimoda [this message]

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