linux-kernel - Re: [PATCH] ACPI: don't walk tables if ACPI was disabled

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Message-ID: <19f34abd0806240452w2561040uc2b1b1d35562db71@mail.gmail.com>
Date:	Tue, 24 Jun 2008 13:52:55 +0200
From:	"Vegard Nossum" <vegard.nossum@...il.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	"Len Brown" <lenb@...nel.org>, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org, "Zhao Yakui" <yakui.zhao@...el.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	"Alexey Starikovskiy" <astarikovskiy@...e.de>,
	"Yinghai Lu" <yhlu.kernel@...il.com>,
	"Bjorn Helgaas" <bjorn.helgaas@...com>
Subject: Re: [PATCH] ACPI: don't walk tables if ACPI was disabled

On 6/24/08, Ingo Molnar <mingo@...e.hu> wrote:
> i havent seen the warning reappear with your fix after thousands of
> bootups - so i guess we can consider it fixed.
>
> Len, please consider the patch below. (it's in tip/out-of-tree)

No, please don't :-)

It fixes your particular case (the acpi_rtc_init() hunk of the patch),
but the acpi_walk_namespace() part should be changed to a WARN(). But
that is likely to cause a lot of "spurious" reports, so the other acpi
drivers should be fixed as well.

I was waiting for Len to reply, but maybe I can submit the proper fix too.


Vegard

-- 
"The animistic metaphor of the bug that maliciously sneaked in while
the programmer was not looking is intellectually dishonest as it
disguises that the error is the programmer's own creation."
	-- E. W. Dijkstra, EWD1036
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