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Date:   Thu, 31 Aug 2017 10:11:34 +0200
From:   Gregory CLEMENT <>
To:     Jan Luebbe <>, Bjorn Helgaas <>
Cc:     Andrew Lunn <>,
        Thomas Petazzoni <>,
        Jason Cooper <>,,,,
Subject: Re: [PATCH 0/2] fix 4GB DRAM window support on mvebu

Hi Bjorn and Jan,
 On mer., août 30 2017, Bjorn Helgaas <> wrote:

> On Mon, Aug 28, 2017 at 05:25:15PM +0200, Jan Luebbe wrote:
>> The current MBUS DRAM window calculation fails for 4GB windows because it
>> overflows. This is fixed in the first patch by using u64 instead of u32 to
>> store the size. The second excplicitly checks that we don't try to configure a
>> too large memory window in the pci driver.
>> As they don't depend on each other, they could also go in separatly.
>> Jan Luebbe (2):
>>   bus: mbus: fix window size calculation for 4GB windows
>>   PCI: mvebu: Check DRAM window size
>>  drivers/bus/mvebu-mbus.c     |  2 +-
>>  drivers/pci/host/pci-mvebu.c | 27 ++++++++++++++++++++++-----
>>  include/linux/mbus.h         |  4 ++--
>>  3 files changed, 25 insertions(+), 8 deletions(-)
> Since these can be applied separately, I'll let somebody else take care of
> the drivers/bus/mvebu-mbus.c part.

I think I am the one who should take it. I will apply it when v4.14-rc1
will be released as it is too late for me for 4.14 now.

However I am not against the fact that it is applied through an other
tree because we don't touch this file for the next release so there is
no risk for a conflict, I can give my Acked-by if needed.



> I'll look for an ack from Thomas or Jason before applying the second patch,
> which touches drivers/pci/host/pci-mvebu.c.

Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.

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