From: Willy Tarreau <w@1wt.eu>
Date: Fri, 18 Apr 2014 12:19:50 +0000 (+0200)
Subject: PCI: mvebu: fix off-by-one in the computed size of the mbus windows
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~194^2~5^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b6d07e0273d3296cfbdc88145b8a00ddbefb310a;p=pandora-kernel.git

PCI: mvebu: fix off-by-one in the computed size of the mbus windows

mvebu_pcie_handle_membase_change() and
mvebu_pcie_handle_iobase_change() do not correctly compute the window
size. PCI uses an inclusive start/end address pair, which requires a
+1 when converting to size.

This only worked because a bug in the mbus driver allowed it to
silently accept and round up bogus sizes.

Fix this by adding one to the computed size.

Fixes: 45361a4fe446 ('PCIe driver for Marvell Armada 370/XP systems')
Cc: <stable@vger.kernel.org> # v3.11+
Signed-off-by: Willy Tarreau <w@1wt.eu>
Reviewed-By: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1397823593-1932-5-git-send-email-thomas.petazzoni@free-electrons.com
Tested-by: Neil Greatorex <neil@fatboyfat.co.uk>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---

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