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Date: Wed, 12 Dec 2007 21:05:06 +0100
From: "Remy Bohmer" <linux@...mer.net>
To: "Steven Rostedt" <rostedt@...dmis.org>
Cc: linux-kernel <linux-kernel@...r.kernel.org>,
"Thomas Gleixner" <tglx@...utronix.de>,
"Ingo Molnar" <mingo@...e.hu>, RT <linux-rt-users@...r.kernel.org>,
"Daniel Walker" <dwalker@...sta.com>,
"Russell King" <rmk+lkml@....linux.org.uk>
Subject: Re: [PATCH RT] Revert Softdisable for simple irqs.
Hello Steven,
>
> In commit 76d2160147f43f982dfe881404cfde9fd0a9da21 lazy irq disabling
> was implemented, and the simple irq handler had a masking set to it.
>
> Remy Bohmer discovered that some devices in the ARM architecture
> would trigger the mask, but never unmask it. His patch to do the
> unmasking was questioned by Russell King about masking simple irqs
> to begin with. Looking further, it was discovered that the problems
> Remy was seeing was due to improper use of the simple handler by
> devices, and he later submitted patches to fix those. But the issue
> that was uncovered was that the simple handler should never mask.
>
> This patch reverts the masking in the simple handler.
Also:
Acked-by: Remy Bohmer <linux@...mer.net>
Thanks for the effort also, I still had it on my todo list, but that
is needed anymore...
Remy
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