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From: Maxime Chevallier <maxime.chevallier@bootlin.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: "Rafael J . Wysocki" <rafael@kernel.org>,
	Antoine Tenart <antoine.tenart@bootlin.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Russell King <linux@armlinux.org.uk>,
	linux-kernel@vger.kernel.org, nadavh@marvell.com,
	brian.brooks@linaro.org, Rob Herring <robh+dt@kernel.org>,
	thomas.petazzoni@bootlin.com,
	Russell King <rmk+kernel@armlinux.org.uk>,
	stefanc@marvell.com, Frank Rowand <frowand.list@gmail.com>,
	David Miller <davem@davemloft.net>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] driver core: platform: Allow using a dedicated dma_mask for platform_device
Date: Mon, 1 Jul 2019 13:24:39 +0200	[thread overview]
Message-ID: <20190701132340.21123dee@bootlin.com> (raw)
In-Reply-To: <20190628155946.GA16956@infradead.org>

Hi Christoph,

On Fri, 28 Jun 2019 08:59:46 -0700
Christoph Hellwig <hch@infradead.org> wrote:

>I'd much rather bite the bullet and make dev->dma_mask a scalar
>instead of a pointer.  The pointer causes way to much boiler plate code,
>and the semantics are way to subtile.

I agree that this the real solution, it just seemed a bit overwhelming
to me. I'll be happy to help with this though, now that you took a big
first step.

> Below is a POV patch that
>compiles and boots with my usual x86 test config, and at least compiles
>with the arm and pmac32 defconfigs.  It probably breaks just about
>everything else, but should give us an idea what is involve in the
>switch:

I'll test that on my boards too.

Thanks,

Maxime

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  parent reply	other threads:[~2019-07-01 11:24 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-28 14:15 [PATCH] driver core: platform: Allow using a dedicated dma_mask for platform_device Maxime Chevallier
     [not found] ` <20190628155946.GA16956@infradead.org>
2019-06-29  7:53   ` Greg Kroah-Hartman
2019-07-01 11:24   ` Maxime Chevallier [this message]
2019-07-03 17:21     ` Christoph Hellwig

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