linux-kernel - Re: [RFC PATCH] kernel: add byteorder macros with alignment fixups

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Message-ID: <20080320190953.GR10722@ZenIV.linux.org.uk>
Date:	Thu, 20 Mar 2008 19:09:54 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	Harvey Harrison <harvey.harrison@...il.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-netdev <netdev@...r.kernel.org>
Subject: Re: [RFC PATCH] kernel: add byteorder macros with alignment fixups

On Thu, Mar 20, 2008 at 11:37:24AM -0700, Harvey Harrison wrote:
> On Thu, 2008-03-20 at 18:29 +0000, Al Viro wrote:
> > On Thu, Mar 20, 2008 at 10:34:14AM -0700, Harvey Harrison wrote:
> > > A common pattern in the kernel (especially networking) is:
> > > 
> > > le32_to_cpu(get_unaligned((__le32 *)x));
> > > 
> > > Repeat for various combinations of le/be and 64/32/16 bit.  Add
> > > a variant that operates on possibly unaligned pointers to
> > > byteorder/generic.h
> > 
> > ... and asm/unaligned.h has just acquired fuckloads of places including
> > it indirectly.  Not Nice(tm).
> 
> Time for linux/unaligned.h?

Er...  And just how would that improve things?
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