This patch adds class support to arch/i386/kernel/cpuid.c. This enables udev
support. I have tested on a 2-way SMP system and on a 2-way built as UP.
Here are the results for the SMP:

[hlinder@w-hlinder2 hlinder]$ tree /sys/class/cpuid
/sys/class/cpuid
|-- cpu0
|   `-- dev
`-- cpu1
    `-- dev

2 directories, 2 files
[hlinder@w-hlinder2 hlinder]$ more /sys/class/cpuid/cpu0/dev
203:0
[hlinder@w-hlinder2 hlinder]$ more /sys/class/cpuid/cpu1/dev
203:1
[hlinder@w-hlinder2 hlinder]$

And for the UP:

[root@w-hlinder2 root]# tree /sys/class/cpuid
/sys/class/cpuid
`-- cpu0
    `-- dev

1 directory, 1 file
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>