From: Arnd Bergmann <arnd@arndb.de>
To: "Russell King - ARM Linux" <linux@arm.linux.org.uk>
Cc: anish singh <anish198519851985@gmail.com>,
Grant Likely <grant.likely@secretlab.ca>,
Haojian Zhuang <haojian.zhuang@linaro.org>,
Andrew Morton <akpm@linux-foundation.org>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
viro@zeniv.linux.org.uk, rusty@rustcorp.com.au,
hpa@linux.intel.com, jim.cromie@gmail.com,
linux-kernel@vger.kernel.org,
Linus Walleij <linus.walleij@linaro.org>,
broonie@opensource.wolfsonmicro.com,
Patch Tracking <patches@linaro.org>
Subject: Re: [PATCH] driver core: add wait event for deferred probe
Date: Thu, 14 Feb 2013 11:08:41 +0000 [thread overview]
Message-ID: <201302141108.41597.arnd@arndb.de> (raw)
In-Reply-To: <20130214100452.GF17833@n2100.arm.linux.org.uk>
On Thursday 14 February 2013, Russell King - ARM Linux wrote:
> In the general case, that remains true, but it's still not true for
> console drivers.
>
> The console should be initialised before it is attempted to be opened
> before passing control to userspace, which happens before the .init
> section is freed.
Yes, I forgot about that. This is indeed an additional requirement
besides what I listed. The late_initcall in which Grant was adding
the serialization however is executed just before the /dev/console
gets opened, which seems like an appropriate place.
What might get into the way is that other late_initcalls get
executed after this one and are required for the console. In
that case, we would have to move the deferred_probe_initcall
from a late_initcall to the end of do_basic_setup, after all
the other initcalls.
Arnd
next prev parent reply other threads:[~2013-02-14 11:09 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-09 16:57 [PATCH] driver core: add wait event for deferred probe Haojian Zhuang
2013-02-11 23:10 ` Andrew Morton
2013-02-12 2:52 ` Haojian Zhuang
2013-02-13 21:36 ` Grant Likely
2013-02-14 3:27 ` anish singh
2013-02-14 9:56 ` Arnd Bergmann
2013-02-14 10:04 ` Russell King - ARM Linux
2013-02-14 11:08 ` Arnd Bergmann [this message]
2013-02-14 16:33 ` Grant Likely
2013-02-14 17:42 ` anish kumar
2013-02-14 15:52 ` Haojian Zhuang
2013-02-14 15:57 ` Arnd Bergmann
2013-02-14 16:04 ` Haojian Zhuang
2013-02-14 16:50 ` Arnd Bergmann
2013-02-14 16:58 ` Haojian Zhuang
2013-02-14 17:54 ` Grant Likely
2013-02-14 17:42 ` Grant Likely
2013-02-14 17:38 ` Grant Likely
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