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From: Greg KH <greg@kroah.com>
To: Robert Hancock <hancockrwd@gmail.com>
Cc: Tejun Heo <tj@kernel.org>, Oliver Neukum <oliver@neukum.org>,
	Yuhong Bao <yuhongbao_386@hotmail.com>,
	david-b@pacbell.net, linux-kernel@vger.kernel.org,
	linux-usb@vger.kernel.org
Subject: Re: [PATCH 2.6.34] ehci-hcd: add option to enable 64-bit DMA support
Date: Thu, 25 Feb 2010 15:25:29 -0800	[thread overview]
Message-ID: <20100225232528.GA24155@kroah.com> (raw)
In-Reply-To: <51f3faa71002251515k51354eb6y3e2cfd1558dba2f1@mail.gmail.com>

On Thu, Feb 25, 2010 at 05:15:49PM -0600, Robert Hancock wrote:
> > For now, I'd like to not enable this, given the huge risks and no known
> > benifit.
> 
> "Huge risks" is likely a bit melodramatic

No it is not.  This has the ability to break USB functionality that
currently works just fine for a user.  That's not acceptable.

And yes, we can fix things after-the-fact with blacklists, but as Tejun
so aptly described, it is a major pain to do so, and lots of users just
get frustrated and never tell us that problems happen.

thanks,

greg k-h

  reply	other threads:[~2010-02-26  0:13 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-18  3:10 [PATCH 2.6.34] ehci-hcd: add option to enable 64-bit DMA support Robert Hancock
2010-02-18  4:26 ` Greg KH
2010-02-18  5:13   ` Robert Hancock
2010-02-18  5:22     ` Greg KH
2010-02-19  0:33       ` Robert Hancock
2010-02-19  0:47         ` Greg KH
2010-02-19  3:46           ` Robert Hancock
2010-02-19  3:54             ` Greg KH
2010-02-20  1:30               ` Robert Hancock
2010-02-20  4:26                 ` Greg KH
2010-02-20  5:39         ` David Brownell
2010-02-20  7:15           ` Robert Hancock
2010-02-20  8:07             ` David Brownell
2010-02-20 18:13               ` Robert Hancock
2010-02-23  6:48             ` Yuhong Bao
2010-02-24  0:26               ` Robert Hancock
2010-02-25  2:28                 ` Tejun Heo
2010-02-25  2:41                   ` Yuhong Bao
2010-02-25  2:58                     ` Tejun Heo
2010-02-25  3:15                   ` Yuhong Bao
2010-02-25  3:29                     ` Tejun Heo
2010-02-25  4:03                       ` Oliver Neukum
2010-02-25  5:25                         ` Tejun Heo
2010-02-25 16:14                           ` Greg KH
2010-02-25 23:15                             ` Robert Hancock
2010-02-25 23:25                               ` Greg KH [this message]
2010-02-26  7:01                                 ` Oliver Neukum
2010-02-24  3:53     ` SB600 64-bit DMA BIOS misconfiguration (formerly RE: [PATCH 2.6.34] ehci-hcd: add option to enable 64-bit DMA support) Yuhong Bao
2010-02-24  4:30       ` Robert Hancock
2010-02-24  4:33         ` Yuhong Bao
2010-02-24 13:30         ` Huang, Shane
2010-02-23  6:28 ` [PATCH 2.6.34] ehci-hcd: add option to enable 64-bit DMA support Yuhong Bao

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