linux-kernel - RE: [PATCH 07/56] microblaze

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Date:	Tue, 06 May 2008 09:33:56 +1000
From:	John Williams <john.williams@...alogix.com>
To:	Stephen Neuendorffer <stephen.neuendorffer@...inx.com>
Cc:	monstr@...nam.cz, linux-kernel@...r.kernel.org, arnd@...db.de,
	linux-arch@...r.kernel.org, John Linn <linnj@...inx.com>,
	matthew@....cx, will.newton@...il.com, drepper@...hat.com,
	microblaze-uclinux@...e.uq.edu.au, grant.likely@...retlab.ca,
	Michal Simek <monstr@...str.eu>
Subject: RE: [PATCH 07/56] microblaze_v2: Signal support

On Mon, 2008-05-05 at 14:32 -0700, Stephen Neuendorffer wrote:
> (multiple places)  can this code (and flush_cache_sigtramp()) go away?
> 
> +#if 0
> +		flush_cache_sigtramp((unsigned long)frame->tramp);
> +#endif

You have to icache_invalidate the sigtramp because you are writing into
memory that will shortly be executed. 

I'm not sure why this is #if'd away in the first place?

John


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