Question: drivers/misc/hdpuftrs

[H Hartley Sweeten]

Hello all,

Are the drivers in drivers/misc/hdpuftrs dead?

I can't locate anywhere to enable CONFIG_HDPU_FEATURES.  Also, both
hdpu_cpustate.c and hdpu_nexus.c register as platform drivers but I
can't find any users in the mainline tree.

Both drivers seem kind of... ugly...

hdpu_cpustate.c does a lock_kernel() in the open file_operation.  Then
does a spin_lock() when checking if the open is O_EXCL.

I'm no expert on locking but the lock_kernel() seems unnecessary.

Regards,
Hartley
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