linux-kernel - Re: [KJ] [PATCH] drivers/acpi: sizeof/sizeof array size calculations replaced with ARRAY

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Message-Id: <200706101544.35463.bjorn.helgaas@hp.com>
Date:	Sun, 10 Jun 2007 15:44:35 -0600
From:	Bjorn Helgaas <bjorn.helgaas@...com>
To:	Pavel Machek <pavel@....cz>
Cc:	Christoph Hellwig <hch@...radead.org>, Len Brown <lenb@...nel.org>,
	Andi Drebes <lists-receive@...grammierforen.de>,
	kernel-janitors@...ts.osdl.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [KJ] [PATCH] drivers/acpi: sizeof/sizeof array size calculations replaced with ARRAY_SIZE

On Sunday 10 June 2007 04:57:12 am Pavel Machek wrote:
> > > > > Any reason to not just replace ACPI_RSD_TABLE_SIZE with ARRAY_SIZE?
> > > 
> > > Probably because ARRAY_SIZE doesn't exist in ACPICA, which is
> > > where this code comes from...
> > > 
> > > When we change syntax in ACPICA files in Linux to make it more "beautiful",
> > > then it creates more work for me -- as forever on, that syntax difference
> > > must be manually compared to upstream ACPICA and Linux -- and that syntax
> > > difference causes upstream patches to no longer apply and require
> > > hand merging.
> > 
> > Or we could stop that ACPCICA crap ASAP.  The acpi code not only looks
> > like crap because of that but it's buggy as hell now.
> 
> +1.
> 
> Len, acpi subsystem is old enough to live by kernel standards, and
> important enough that it should look&feel like a kernel code. It also
> does not seem to change quickly, so merging patches should not be a
> big deal.

I agree the ACPI CA is a nuisance.  But in this case, we're making
a mountain out of a molehill.  I suspect that if somebody spent the
15 minutes to make the ARRAY_SIZE patch work in both the Linux ACPI CA
and the generic Intel one and license it appropriately, Len would
happily apply the patch.
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