linux-kernel - Re: [PATCH V4] Fix pointer cast for 32 bits arch

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Message-ID: <20150418135955.GQ10964@mwanda>
Date:	Sat, 18 Apr 2015 16:59:55 +0300
From:	Dan Carpenter <dan.carpenter@...cle.com>
To:	Peter Senna Tschudin <peter.senna@...il.com>
Cc:	Alan Cox <alan@...ux.intel.com>,
	driverdevel <devel@...verdev.osuosl.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jun Tian <jun.j.tian@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Garret Kelly <garret.kelly@...il.com>,
	Octavian Purdila <octavian.purdila@...el.com>,
	Andreas <schwab@...ux-m68k.org>, Nick Kralevich <nnk@...gle.com>
Subject: Re: [PATCH V4] Fix pointer cast for 32 bits arch

On Sat, Apr 18, 2015 at 03:34:08PM +0200, Peter Senna Tschudin wrote:
> 
> 
> On Fri, Apr 17, 2015 at 4:10 PM, Alan Cox <alan@...ux.intel.com> wrote:
> > On Fri, 2015-04-17 at 16:59 +0300, Dan Carpenter wrote:
> >> On Fri, Apr 17, 2015 at 02:31:49PM +0100, Alan Cox wrote:
> >> > On Fri, 2015-04-17 at 11:20 +0300, Dan Carpenter wrote:
> >> > > Actually, my patch seems like a good idea to me but it's one of those
> >> > > things that someone should probably test.  Unless someone can test
> >> > > goldfish on a 32 bit system with 64 bit dma addresses
> >> >
> >> > No such "system" exists.
> >>
> >> I don't understand.  We definitely can have 64bit dma addresses on
> >> x86_32.
> >
> >
> > Yes but no actual Goldfish environment is built that way
> Isn't this a simpler fix?

I still think my fix is cleanest even though dma_addr_t and size_t are
always the same.  It just means that we can commit it without worrying
about testing.

regards,
dan carpenter

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