linux-kernel - Re: [RFC] Normalizing byteorder/unaligned access API

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Message-Id: <1223422542.8195.42.camel@brick>
Date:	Tue, 07 Oct 2008 16:35:42 -0700
From:	Harvey Harrison <harvey.harrison@...il.com>
To:	Matthew Wilcox <matthew@....cx>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Al Viro <viro@...IV.linux.org.uk>,
	linux-arch <linux-arch@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	linux-scsi <linux-scsi@...r.kernel.org>,
	Boaz Harrosh <bharrosh@...asas.com>
Subject: Re: [RFC] Normalizing byteorder/unaligned access API

On Tue, 2008-10-07 at 17:28 -0600, Matthew Wilcox wrote:
> On Tue, Oct 07, 2008 at 02:53:11PM -0700, Harvey Harrison wrote:
> > In addition, there are some subsystems (scsi) that are looking into some
> > differently sized endian helpers (be24) and it may be worthwhile to have
> > some agreement whether it is worth making them common infrastructure and
> > whether they should present a similar API to the common byteorder/unaligned
> > API.
> 
> I still think SCSI should have its own accessors, even if they're
> just wrappers around the common BE code.
> 

I thought it was generally discouraged that subsystems have trivial
wrappers like that, otherwise you wind up with:

scsi_get_u32
usb_get_u32
v4l_get_u32

... and so on, where as if they all used the common names, people more
used to other areas of the kernel can still recognize what the code
is doing without having the lookup another define.

Just my 2 cents

Harvey

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