linux-kernel - Re: [PATCH] ARM: BUG() dies silently

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Date:	Tue, 05 Apr 2011 10:36:39 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Simon Glass <sjg@...omium.org>
CC:	Omar Ramirez Luna <omar.ramirez@...com>,
	Russell King <linux@....linux.org.uk>,
	lk <linux-kernel@...r.kernel.org>,
	lak <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ARM: BUG() dies silently

On 4/4/2011 6:55 PM, Simon Glass wrote:
> On Sun, Apr 3, 2011 at 12:15 AM, Stephen Boyd <sboyd@...eaurora.org> wrote:
>> Yes I've seen your patch (and even posted comments on it which have not
>> been responded to).
> Hi Stephen,
>
> Not yet! Don't worry I will get to it. I like the suggestion and am
> pleased that you pointed me to it, thank you.
>

Great!

>> Correct me if I'm wrong, but that patch with CONFIG_BUG=n would lead to
>> the same error that Omar is seeing because the code only modifies the
>> bug infrastructure when CONFIG_BUG=y.
> Well if CONFIG_BUG=n then there is no bug infrastructure, The whole
> file is skipped and it falls back to the asm-generic/bug.h which has
> even more #ifdefs in it. But I think we end up here:
>
> #define BUG() do {} while(0)
>
> After all the patch removes the *(int*)0 = 0 code by virtue of
> CONFIG_GENERIC_BUG=y, right? If I have this wrong then I will have to
> break out the C preprocessor...
>

Ah you're right. Too many ifdefs going on there.

-- 
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

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