linux-kernel - Re: [PATCH v4 2/2] powerpc: Uprobes port to powerpc

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Message-ID: <20120824073738.GD32031@in.ibm.com>
Date:	Fri, 24 Aug 2012 13:07:38 +0530
From:	Ananth N Mavinakayanahalli <ananth@...ibm.com>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:	Michael Ellerman <michael@...erman.id.au>,
	ppcdev <linuxppc-dev@...ts.ozlabs.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Paul Mackerras <paulus@...ba.org>,
	Anton Blanchard <anton@...ba.org>, peterz@...radead.org,
	oleg@...hat.com, Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [PATCH v4 2/2] powerpc: Uprobes port to powerpc

On Fri, Aug 24, 2012 at 05:07:31PM +1000, Benjamin Herrenschmidt wrote:
> On Fri, 2012-08-24 at 11:13 +1000, Michael Ellerman wrote:
> > 
> > Yeah. A NULL regs here is a kernel bug, so I think it's actually
> > preferable to crash than silently return. 
> 
> Or best, if you think there's a remote chance that the bug might hit:
> 
> 	if (WARN(!regs))
> 		return

Incorporated this and other suggestions from Michael in v5 I just
posted.

Ananth

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