Re: powerpc allmodconfig build broken due to commit 15863ff3b (powerpc:Make chip-id information available to userspace)
From: Asai Thambi S P
Date: Mon Sep 09 2013 - 19:55:54 EST
On 09/08/2013 5:28 PM, Guenter Roeck wrote:
Hi all,
powerpc allmodconfig build on the latest upstream kernel results in:
ERROR: ".cpu_to_chip_id" [drivers/block/mtip32xx/mtip32xx.ko] undefined!
This is due to commit 15863ff3b (powerpc: Make chip-id information
available to userspace).
Not surprising, as cpu_to_chip_id() is not exported.
Apart from the above error, I have a concern on the patch, purely based on the commit message.
(to be honest, I am not familiar with the ppc architecture)
Commit message of 15863ff3b has the following text.
******************
So far "/sys/devices/system/cpu/cpuX/topology/physical_package_id"
was always default (-1) on ppc64 architecture.
Now, some systems have an ibm,chip-id property in the cpu nodes in
the device tree. On these systems, we now use this information to
display physical_package_id
******************
Shouldn't the new definition of "topology_physical_package_id" apply only to those systems supporting ibm,chip-id property?
Reverting this commit fixes the problem. Any good idea how to fix it
for real ?
Guenter
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