Re: [PATCH 1/3] 24-bit types: typedef and macros for accessing3-byte arrays as integers

From: Christoph Hellwig
Date: Wed Sep 10 2008 - 10:07:31 EST

On Fri, Sep 05, 2008 at 09:57:32AM -0700, Chris Leech wrote:
> Both iSCSI and Fibre Channel make use of 24-bit big-endian values in
> frame headers. This patch defines __be24 and __le24 typedefs for a
> structure wrapped around a 3-byte array, and macros to convert back and
> forth to a 32-bit integer.
> The undefs in iscsi_proto.h are because of the different calling
> convention for the existing hton24 macro in the iSCSI code. iSCSI will
> be converted in a subsequent patch.

JFS already defines an __le24, see fs/jfs/endian24.h. Please try to
cover it, too or at least make sure you don't break it.

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