NAK: [SRU][Zesty][PATCH 1/1] powerpc/npu-dma: Remove spurious WARN_ON when a PCI device has no of_node

[Seth Forshee]

On Wed, Jul 12, 2017 at 09:47:54AM -0400, Joseph Salisbury wrote:
> From: Alistair Popple <alistair at popple.id.au>
> 
> BugLink: http://bugs.launchpad.net/bugs/1702768
> 
> Commit 4c3b89effc28 ("powerpc/powernv: Add sanity checks to
> pnv_pci_get_{gpu|npu}_dev") introduced explicit warnings in
> pnv_pci_get_npu_dev() when a PCIe device has no associated device-tree
> node. However not all PCIe devices have an of_node and
> pnv_pci_get_npu_dev() gets indirectly called at least once for every
> PCIe device in the system. This results in spurious WARN_ON()'s so
> remove it.
> 
> The same situation should not exist for pnv_pci_get_gpu_dev() as any
> NPU based PCIe device requires a device-tree node.
> 
> Fixes: 4c3b89effc28 ("powerpc/powernv: Add sanity checks to pnv_pci_get_{gpu|npu}_dev")
> Reported-by: Alexey Kardashevskiy <aik at ozlabs.ru>
> Signed-off-by: Alistair Popple <alistair at popple.id.au>
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
> (cherry picked from commit 377aa6b0efbaa29cfeecd8b9244641217f9544ca)
> Signed-off-by: Joseph Salisbury <joseph.salisbury at canonical.com>

This patch was already sent/applied for another bug report:

https://lists.ubuntu.com/archives/kernel-team/2017-June/085279.html

So this bug probably should just be duped to the one there.