linux-kernel - Re: is avoiding compat ioctls possible?

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Message-Id: <20091028.011141.267473962.davem@davemloft.net>
Date:	Wed, 28 Oct 2009 01:11:41 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	andi@...stfloor.org
Cc:	airlied@...ux.ie, dri-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org, arnd@...db.de
Subject: Re: is avoiding compat ioctls possible?

From: Andi Kleen <andi@...stfloor.org>
Date: Wed, 28 Oct 2009 08:59:08 +0100

>>  	}
>> -	chunk_array_ptr = (uint64_t *)(unsigned long)(cs->chunks);
>> +#ifdef CONFIG_COMPAT
>> +	if (is_compat_task())
> 
> Are the COMPAT ifdefs really needed? The compiler should optimize that
> away anyways on non compat aware architectures, shouldn't it?

There are no non-compat is_compat_task() definitions, nor are there
non-compat build definitions of compat_uptr_t and the assosciated
interfaces.
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