powerpc/eeh: Reduce use of pci_dn::node

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The pci_dn struct caches a OF device node pointer in order to access
the "ibm,loc-code" property when EEH is recovering.

However, when this happens in eeh_dev_check_failure(), we also have
a pci_dev pointer which should have a valid pointer to the device node
when pci_dn has one (both pointers are not NULL for physical functions
and are NULL for virtual functions).

This changes pci_remove_device_node_info() to look for a parent of
the node being removed, just like pci_add_device_node_info() does when it
references the parent node.

This is the first step to get rid of pci_dn::node.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Alexey Kardashevskiy 2017-08-29 17:34:03 +10:00 • committed by Michael Ellerman

parent 405b33a76d

commit 14db3d52d3

2 changed files with 10 additions and 6 deletions

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9

arch/powerpc/kernel/eeh.c

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7

arch/powerpc/kernel/pci_dn.c

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