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Date: Mon, 28 Sep 2015 17:08:54 -0500
From: Bjorn Helgaas <helgaas@kernel.org>
To: Rob Herring <robh@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>, linux-pci@vger.kernel.org
Subject: pci_generic_config_write32() access size problem
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Hi Rob,

Russell pointed out a problem with 1f94a94f67e1 ("PCI: Add generic config
accessors").  pci_generic_config_write32() does a read/modify/write if the
size is less than 32 bits, so I think we have problem if this is used with
8- or 16-bit registers that contain RW1C bits.  Any thoughts on how we can
fix this?

Bjorn