From: Arnd Bergmann <arnd@arndb.de>
To: Bernd Schmidt <bernds_cb1@t-online.de>
Cc: Robin Getz <rgetz@blackfin.uclinux.org>,
luke Yang <luke.adi@gmail.com>, Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/4] Blackfin: arch patch for 2.6.18
Date: Thu, 28 Sep 2006 14:35:01 +0200 [thread overview]
Message-ID: <200609281435.02847.arnd@arndb.de> (raw)
In-Reply-To: <451BB45C.2050609@t-online.de>
On Thursday 28 September 2006 13:39, Bernd Schmidt wrote:
>
> > Shouldn't you just use a constant expression here? A global variable
> > for it sounds rather strange, especially since the local_irq_disable()
> > calls are sometimes nested, not to mention the problems you'd hit on
> > SMP?
>
> It's not a constant - there are some {un,}mask_irq functions that may
> change it. We don't have SMP, obviously it would have to be per-CPU if
> we did.
>
Ok, got it now. I did not realize that you use the same register
for global irq enable and for specific interrupts that can be masked.
Arnd <><
next prev parent reply other threads:[~2006-09-28 12:35 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-27 16:25 [PATCH 1/4] Blackfin: arch patch for 2.6.18 Robin Getz
2006-09-27 16:36 ` Randy Dunlap
2006-09-27 16:41 ` Arnd Bergmann
2006-09-27 17:19 ` Robin Getz
2006-09-27 20:57 ` Arnd Bergmann
2006-09-28 9:31 ` Bernd Schmidt
2006-09-28 11:04 ` Arnd Bergmann
2006-09-28 11:39 ` Bernd Schmidt
2006-09-28 12:35 ` Arnd Bergmann [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-09-27 23:01 Robin Getz
2006-09-27 22:56 Robin Getz
2006-09-27 21:22 Robin Getz
2006-09-27 21:36 ` Arnd Bergmann
2006-09-27 17:47 Robin Getz
2006-09-27 19:19 ` Jörn Engel
2006-09-25 23:21 Robin Getz
2006-09-23 23:25 Robin Getz
2006-09-24 7:29 ` David Woodhouse
2006-09-23 17:57 Robin Getz
2006-09-23 16:29 Robin Getz
2006-09-23 18:10 ` Arnd Bergmann
2006-09-21 3:32 Luke Yang
2006-09-21 9:59 ` Luke Yang
2006-09-23 0:18 ` Arnd Bergmann
2006-09-23 1:18 ` Randy.Dunlap
2006-09-23 1:24 ` Roland Dreier
2006-09-23 1:58 ` Mike Frysinger
2006-09-23 6:50 ` Mike Frysinger
2006-09-23 11:03 ` Arnd Bergmann
2006-09-23 11:15 ` Mike Frysinger
2006-09-23 11:29 ` Arnd Bergmann
2006-09-23 13:07 ` Arnd Bergmann
2006-09-23 11:28 ` Matthieu CASTET
2006-09-23 11:35 ` Mike Frysinger
2006-09-23 19:43 ` Arnd Bergmann
2006-09-24 3:49 ` Luke Yang
2006-09-24 3:35 ` Aubrey
2006-09-24 3:50 ` Randy Dunlap
2006-09-24 4:28 ` Aubrey
2006-09-25 6:54 ` Arnd Bergmann
2006-09-25 7:49 ` Aubrey
2006-09-25 9:26 ` Arnd Bergmann
2006-09-25 9:39 ` Luke Yang
2006-09-25 9:45 ` Aubrey
2006-09-25 15:39 ` Aubrey
2006-09-25 17:05 ` Arnd Bergmann
2006-09-26 3:42 ` Aubrey
2006-09-26 9:43 ` Arnd Bergmann
2006-09-27 10:04 ` Aubrey
2006-09-27 11:37 ` Arnd Bergmann
2006-09-23 21:27 ` David Woodhouse
2006-09-25 16:52 ` Randy Dunlap
2006-09-25 18:05 ` Mike Frysinger
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