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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>,
	Mauro Carvalho Chehab <mchehab@redhat.com>,
	Ming Lei <ming.lei@canonical.com>, Kay Sievers <kay@vrfy.org>,
	Lennart Poettering <lennart@poettering.net>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Kay Sievers <kay@redhat.com>,
	Linux Media Mailing List <linux-media@vger.kernel.org>,
	Michael Krufky <mkrufky@linuxtv.org>,
	Ivan Kalvachev <ikalvachev@gmail.com>
Subject: Re: udev breakages - was: Re: Need of an ".async_probe()" type of callback at driver's core - Was: Re: [PATCH] [media] drxk: change it to use request_firmware_nowait()
Date: Wed, 3 Oct 2012 13:39:23 -0700	[thread overview]
Message-ID: <CA+55aFwjyABgr-nmsDb-184nQF7KfA8+5kbuBNwyQBHs671qQg@mail.gmail.com> (raw)
In-Reply-To: <20121003195059.GA13541@kroah.com>

On Wed, Oct 3, 2012 at 12:50 PM, Greg KH <gregkh@linuxfoundation.org> wrote:
>>
>> Ok, like this?
>
> This looks good to me.  Having udev do firmware loading and tieing it to
> the driver model may have not been such a good idea so many years ago.
> Doing it this way makes more sense.

Ok, I wish this had been getting more testing in Linux-next or
something, but I suspect that what I'll do is to commit this patch
asap, and then commit another patch that turns off udev firmware
loading entirely for the synchronous firmware loading case.

Why? Just to get more testing, and seeing if there are reports of
breakage. Maybe some udev out there has a different search path (or
because udev runs in a different filesystem namespace or whatever), in
which case running udev as a fallback would otherwise hide the fact
that he direct kernel firmware loading isn't working.

We can (and will) revert things if that turns out to break things, but
I'd like to make any failures of the firmware direct-load path be fast
and hard, so that we can see when/what it breaks.

Ok? Comments?

              Linus

  reply	other threads:[~2012-10-03 20:39 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1340285798-8322-1-git-send-email-mchehab@redhat.com>
     [not found] ` <4FE37194.30407@redhat.com>
     [not found]   ` <4FE8B8BC.3020702@iki.fi>
     [not found]     ` <4FE8C4C4.1050901@redhat.com>
     [not found]       ` <4FE8CED5.104@redhat.com>
     [not found]         ` <20120625223306.GA2764@kroah.com>
     [not found]           ` <4FE9169D.5020300@redhat.com>
2012-10-02 13:03             ` udev breakages - was: Re: Need of an ".async_probe()" type of callback at driver's core - Was: Re: [PATCH] [media] drxk: change it to use request_firmware_nowait() Mauro Carvalho Chehab
2012-10-02 16:33               ` Linus Torvalds
2012-10-02 21:03                 ` Ivan Kalvachev
2012-10-02 22:37                   ` Linus Torvalds
2012-10-03 22:15                     ` Lucas De Marchi
2012-10-11 18:33                     ` Shea Levy
2012-10-12  1:55                       ` Ming Lei
2012-10-02 22:12                 ` Greg KH
2012-10-02 22:23                   ` Greg KH
2012-10-02 22:47                     ` Linus Torvalds
2012-10-03  0:01                       ` Jiri Kosina
2012-10-03  0:12                         ` Linus Torvalds
2012-10-04 14:36                           ` Jiri Kosina
2012-10-03 15:13                       ` Mauro Carvalho Chehab
2012-10-03 16:38                         ` Linus Torvalds
2012-10-03 17:00                           ` Linus Torvalds
2012-10-03 17:09                           ` Al Viro
2012-10-03 17:32                             ` Linus Torvalds
2012-10-03 19:26                               ` Al Viro
2012-10-04  0:57                                 ` udev breakages - Nix
2012-10-04 10:35                                   ` Nix
2012-10-03 19:50                               ` udev breakages - was: Re: Need of an ".async_probe()" type of callback at driver's core - Was: Re: [PATCH] [media] drxk: change it to use request_firmware_nowait() Greg KH
2012-10-03 20:39                                 ` Linus Torvalds [this message]
2012-10-03 21:04                                   ` Kay Sievers
2012-10-03 21:05                                   ` Greg KH
2012-10-03 21:18                                     ` Kay Sievers
2012-10-03 21:45                                       ` Alan Cox
2012-10-03 21:58                                   ` Lucas De Marchi
2012-10-03 22:17                                     ` Linus Torvalds
2012-10-03 22:48                                   ` Andy Walls
2012-10-03 22:58                                     ` Linus Torvalds
2012-10-04  2:39                                       ` Kay Sievers
2012-10-04 17:29                                         ` udev breakages - Eric W. Biederman
2012-10-04 17:42                                           ` Greg KH
2012-10-04 19:17                                             ` Alan Cox
2012-10-10  3:19                                               ` Felipe Contreras
2012-10-10 16:08                                                 ` Geert Uytterhoeven
2012-10-11  3:32                                             ` Eric W. Biederman
2012-10-04 13:39                                       ` udev breakages - was: Re: Need of an ".async_probe()" type of callback at driver's core - Was: Re: [PATCH] [media] drxk: change it to use request_firmware_nowait() Josh Boyer
2012-10-04 13:58                                         ` Greg KH
2012-10-03 22:53                                   ` Stephen Rothwell
2012-10-03 21:10                                 ` Andy Walls
2012-10-03 19:48                           ` Access files from kernel Kirill A. Shutemov
2012-10-03 20:32                             ` Linus Torvalds
     [not found]                           ` <CACVXFVNTZmG+zTQNi9mCn9ynsCjkM084TmHKDcYYggtqLfhqNQ@mail.gmail.com>
2012-10-04  1:42                             ` udev breakages - was: Re: Need of an ".async_probe()" type of callback at driver's core - Was: Re: [PATCH] [media] drxk: change it to use request_firmware_nowait() Linus Torvalds
2012-10-03 14:12                     ` Mauro Carvalho Chehab
2012-10-03 14:36                   ` Kay Sievers
2012-10-03 14:44                     ` Linus Torvalds
2012-10-03 16:57                     ` Greg KH
2012-10-03 17:24                       ` Kay Sievers
2012-10-03 18:07                         ` Linus Torvalds
2012-10-03 19:46                       ` Mauro Carvalho Chehab
     [not found] <fa.90I1W/wmSTgRFXVG67o7Pp3+rKA@ifi.uio.no>
     [not found] ` <fa.Oszo+r/ZqdTxC2FHqqg+CRVMJ5Y@ifi.uio.no>
     [not found]   ` <fa.CoxzZZId9dJONv353c+pFG/HO8E@ifi.uio.no>
     [not found]     ` <fa.ixJ/7D7BnMK8xp7CwikX7jbmnKU@ifi.uio.no>
     [not found]       ` <fa./ubRQE7P/T+ateohnOKdDxOFhL4@ifi.uio.no>
     [not found]         ` <fa.lpiFTa5CtuIkUf2Z5eJ0YlsNwYI@ifi.uio.no>
2012-10-04 14:50           ` Kurt H Maier
2012-10-05  8:03             ` Emmanuel Benisty
2012-10-05 20:17               ` david
2012-10-05 21:43                 ` Henrique de Moraes Holschuh

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