Re: [PATCH] PCI: export pci_find_host_bridge() to fix MFD build error

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To: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Subject: Re: [PATCH] PCI: export pci_find_host_bridge() to fix MFD build error
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Tue, 20 Oct 2020 09:02:19 +0100
Cc: linux-kernel@xxxxxxxxxxxxxxx, kernel test robot <lkp@xxxxxxxxx>, Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx>, Paul Burton <paulburton@xxxxxxxxxx>, linux-mips@xxxxxxxxxxxxxxx, Bjorn Helgaas <bhelgaas@xxxxxxxxxx>, linux-pci@xxxxxxxxxxxxxxx
In-reply-to: <20201019061453.32295-1-rdunlap@infradead.org>
References: <20201019061453.32295-1-rdunlap@infradead.org>

On Sun, Oct 18, 2020 at 11:14:53PM -0700, Randy Dunlap wrote:
> Fix a build error in drivers/mfd/ioc.o by exporting
> pci_find_host_bridge().
> 
> ERROR: modpost: "pci_find_host_bridge" [drivers/mfd/ioc3.ko] undefined!

I think the mfd code should be fixed to not depend on such an internal
symbol instead.

Follow-Ups:
- Re: [PATCH] PCI: export pci_find_host_bridge() to fix MFD build error
  - From: Thomas Bogendoerfer
- Re: [PATCH] PCI: export pci_find_host_bridge() to fix MFD build error
  - From: Randy Dunlap

References:
- [PATCH] PCI: export pci_find_host_bridge() to fix MFD build error
  - From: Randy Dunlap

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