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From: Matthew Garrett <mjg@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jack Stone <jwjstone@fastmail.fm>,
	Alan Stern <stern@rowland.harvard.edu>,
	Oliver Neukum <oliver@neukum.org>, Dave Jones <davej@redhat.com>,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Larry Finger <Larry.Finger@lwfinger.net>,
	Chaoming Li <chaoming_li@realsil.com.cn>,
	"John W. Linville" <linville@tuxdriver.com>,
	Greg Kroah-Hartman <gregkh@suse.de>,
	USB list <linux-usb@vger.kernel.org>,
	Linux Wireless List <linux-wireless@vger.kernel.org>
Subject: Re: loading firmware while usermodehelper disabled.
Date: Mon, 2 Jan 2012 21:19:04 +0000	[thread overview]
Message-ID: <20120102211904.GA15316@srcf.ucam.org> (raw)
In-Reply-To: <CA+55aFwf06vRraVqtz8_2qWjxH0V=Yj5m7mEy3XVbA7+qj5k5A@mail.gmail.com>

On Mon, Jan 02, 2012 at 12:48:48PM -0800, Linus Torvalds wrote:

> Why are you guys making it any more complicated than that?

Because it's inadequate. You can't guarantee that we ever loaded 
firmware. The same hardware might maintain state over warm reboots but 
not over suspend. We never loaded the firmware loader driver. We never 
called request_firmware(). We have no way of knowing whether the device 
is an older one that needs firmware loading, or a newer one which has it 
in flash.

-- 
Matthew Garrett | mjg59@srcf.ucam.org

  parent reply	other threads:[~2012-01-02 21:19 UTC|newest]

Thread overview: 91+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20111230235421.GA6054@redhat.com>
2011-12-31  0:22 ` loading firmware while usermodehelper disabled Linus Torvalds
2011-12-31  0:40   ` Matthew Garrett
2011-12-31 15:33     ` Alan Stern
2011-12-31 15:59       ` Oliver Neukum
2012-01-01  2:21         ` Alan Stern
2012-01-01 12:22           ` Oliver Neukum
2012-01-01 16:17             ` Alan Stern
2012-01-01 16:25               ` Michael Büsch
2012-01-01 20:30               ` Linus Torvalds
2012-01-01 21:27                 ` Oliver Neukum
2012-01-01 21:39                   ` Michael Büsch
2012-01-02  3:33                     ` Matthew Garrett
2012-01-02  7:56                     ` Oliver Neukum
2012-01-02  4:17                 ` Marek Vasut
2012-01-02  5:35                   ` Gábor Stefanik
2012-01-02  8:38                     ` Marek Vasut
2012-01-02 16:54                 ` Alan Stern
2012-01-02 20:41                   ` Jack Stone
2012-01-02 20:48                     ` Linus Torvalds
2012-01-02 20:55                       ` Jack Stone
2012-01-02 21:00                         ` Linus Torvalds
2012-01-02 21:09                           ` Jack Stone
2012-01-02 21:23                             ` Linus Torvalds
2012-01-02 21:31                               ` Jack Stone
2012-01-02 21:52                                 ` Marek Vasut
2012-01-02 21:57                                   ` Jack Stone
2012-01-02 22:31                                     ` Marek Vasut
2012-01-02 23:25                                       ` Jack Stone
2012-01-03  0:31                                         ` Marek Vasut
2012-01-03  0:44                                           ` Jack Stone
2012-01-03  0:58                                             ` Alan Cox
2012-01-03  7:17                                               ` Marek Vasut
2012-01-03  7:41                                             ` Oliver Neukum
2012-01-03  0:35                                 ` Alan Cox
2012-01-03  0:50                           ` Alan Cox
2012-01-02 21:19                       ` Matthew Garrett [this message]
2012-01-02 21:26                         ` Jack Stone
2012-01-03  0:42                           ` Alan Cox
2012-01-03 11:57                             ` Oliver Neukum
2012-01-03 12:19                               ` Jack Stone
2012-01-03 13:20                                 ` Alan Cox
2012-01-03 13:30                                   ` Oliver Neukum
2012-01-03 13:36                                     ` Alan Cox
2012-01-02 21:27                         ` Linus Torvalds
2012-01-02 21:50                           ` Matthew Garrett
2012-01-02 22:03                             ` Linus Torvalds
2012-01-02 22:12                               ` Matthew Garrett
2012-01-02 22:19                                 ` Linus Torvalds
2012-01-02 22:29                                   ` Matthew Garrett
2012-01-02 22:46                                     ` Linus Torvalds
2012-01-02 23:00                                       ` Matthew Garrett
2012-01-02 23:31                                         ` Jack Stone
2012-01-03  0:13                                           ` Matthew Garrett
2012-01-03  0:20                                             ` Alan Cox
2012-01-03  0:37                                               ` Matthew Garrett
2012-01-03  0:22                                             ` Jack Stone
2012-01-03  0:31                                               ` Alan Cox
2012-01-03  0:41                                                 ` Jack Stone
2012-01-03  0:38                                               ` Matthew Garrett
2012-01-03  0:47                                                 ` Alan Cox
2012-01-03  0:18                                           ` Alan Cox
2012-01-03  8:26                                             ` Ingo Molnar
2012-01-03  2:45                             ` Alan Stern
2012-01-03  3:25                               ` Matthew Garrett
2012-01-03  5:53                                 ` Linus Torvalds
2012-01-03 11:50                                   ` Oliver Neukum
2012-01-03 15:16                                     ` Alan Stern
2012-01-03 12:24                                   ` Matthew Garrett
2012-01-03 16:29                                     ` Linus Torvalds
2012-01-03 15:09                                 ` Alan Stern
2012-01-03  9:16                             ` Alexander E. Patrakov
2012-01-03  9:24                               ` david
2012-01-03 13:43                               ` Alan Cox
2012-01-03 14:12                               ` Bernd Petrovitsch
2012-01-03  0:00                           ` Alan Cox
2012-01-02 23:50                       ` Alan Cox
2012-01-02 23:53                     ` Alan Cox
2011-12-31 16:27       ` Matthew Garrett
2011-12-31 14:20   ` Martin Schleier
2011-12-31 18:39   ` Marek Vasut
2012-01-01  9:48     ` Oliver Neukum
2012-01-01  9:54       ` Marek Vasut
2012-01-01 12:28         ` Oliver Neukum
2012-01-01 16:32           ` Marek Vasut
2012-01-01 17:06             ` Marek Vasut
2012-01-01 20:39             ` Alan Cox
2012-01-01 20:50               ` Michael Büsch
2012-01-02  3:24                 ` Marek Vasut
2012-01-02  3:29               ` Marek Vasut
2012-01-01  3:49   ` Larry Finger
2012-01-01 22:45   ` Jack Stone

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