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Date: Mon, 3 Jan 2005 17:01:33 +0100
From: Joerg Sonnenberger <joerg@britannica.bec.de>
To: freebsd-hackers@freebsd.org
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	Tejas Sumant <tejas.sumant@gmail.com>
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	<20050103125351.GA1242@straylight.m.ringlet.net>
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cc: Tejas Sumant <tejas.sumant@gmail.com>
Subject: Re: Freeing Volatile Pointer
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On Mon, Jan 03, 2005 at 02:53:51PM +0200, Peter Pentchev wrote:
>    free((void *)host_mem_resp_ptr, M_DEVBUF)
> 
> ...and you should be okay, unless you specifically pass -Wcast-qual to
> the compiler.  If you do, it will again give this warning, just because
> you have explicitly asked it to :)

Still better is using __DEVOLATILE from sys/cdefs.h, which does a cast to
uintptr_t first. This way, you even avoid this warning :)

Joerg