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