This patch just adds a #define and a inline function to hide the
"i2c_client->name" => "i2c_client->dev.name" move introduced by
the recent i2c updates.  That makes it easier to build i2c drivers
on both 2.4 and 2.5 kernels.

into kroah.com:/home/linux/linux/BK/i2c-2.5

There is a stunning bug.

Previously, it was done automatically by the `reti' isntruction upon
returning from the kernel, but that doesn't do the correct thing in
various cases, for instance if there's a context switch, or a softirq.

Allows for the non standard cascade

(Steven Cole)