linux-kernel - linux-next: build warning after merge of the devicetree tree

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Date:   Wed, 9 May 2018 16:04:49 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Rob Herring <robherring2@...il.com>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        linux-kbuild@...r.kernel.org
Subject: linux-next: build warning after merge of the devicetree tree

Hi Rob,

After merging the devicetree tree, today's linux-next build (arm
multi_v7_defconfig) produced this warning:

drivers/gpu/drm/rcar-du/rcar_du_of_lvds_r8a7795.dtb: Warning (graph_endpoint): /fragment@..._overlay__/port@...ndpoint: graph connection to node '/fragment@..._overlay__/lvds@...90000/ports/port@...ndpoint' is not bidirectional
drivers/gpu/drm/rcar-du/rcar_du_of_lvds_r8a7790.dtb: Warning (graph_endpoint): /fragment@..._overlay__/port@...ndpoint: graph connection to node '/fragment@..._overlay__/lvds@...90000/ports/port@...ndpoint' is not bidirectional
drivers/gpu/drm/rcar-du/rcar_du_of_lvds_r8a7790.dtb: Warning (graph_endpoint): /fragment@..._overlay__/port@...ndpoint: graph connection to node '/fragment@..._overlay__/lvds@...94000/ports/port@...ndpoint' is not bidirectional

and over 2000 more :-(

Presumably introduced by commit

  0698fc8b542f ("scripts/dtc: Update to upstream version v1.4.6-21-g84e414b0b5bc")

but not suppressed by commit

  b63caea4b5b5 ("kbuild: disable new dtc graph and unit-address warnings")

-- 
Cheers,
Stephen Rothwell

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