linux-kernel - Re: [PATCH v1 1/2] iommu: pass cell_count = -1 to of_for_each_phandle with cells

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Message-ID: <20190912074353.wqohpfydjxueqade@pengutronix.de>
Date:   Thu, 12 Sep 2019 09:43:53 +0200
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Joerg Roedel <joro@...tes.org>
Cc:     devicetree@...r.kernel.org, Frank Rowand <frowand.list@...il.com>,
        Robin Murphy <robin.murphy@....com>,
        linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org,
        Rob Herring <robh+dt@...nel.org>,
        linux-mediatek@...ts.infradead.org, kernel@...gutronix.de,
        Matthias Brugger <matthias.bgg@...il.com>,
        Will Deacon <will@...nel.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v1 1/2] iommu: pass cell_count = -1 to
 of_for_each_phandle with cells_name

On Tue, Sep 03, 2019 at 02:52:10PM +0200, Joerg Roedel wrote:
> On Sat, Aug 24, 2019 at 03:28:45PM +0200, Uwe Kleine-König wrote:
> > Currently of_for_each_phandle ignores the cell_count parameter when a
> > cells_name is given. I intend to change that and let the iterator fall
> > back to a non-negative cell_count if the cells_name property is missing
> > in the referenced node.
> > 
> > To not change how existing of_for_each_phandle's users iterate, fix them
> > to pass cell_count = -1 when also cells_name is given which yields the
> > expected behaviour with and without my change.
> > 
> > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
> > ---
> >  drivers/iommu/arm-smmu.c     | 2 +-
> >  drivers/iommu/mtk_iommu_v1.c | 2 +-
> >  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> Acked-by: Joerg Roedel <jroedel@...e.de>

Does this ack mean that Rob is expected to apply this together with
patch 2?

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |