linux-kernel - [PATCH v2 0/3] Implement nvmem support for mtd

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 16 Feb 2021 22:26:25 +0100
From:   Ansuel Smith <ansuelsmth@...il.com>
To:     Richard Weinberger <richard@....at>
Cc:     Ansuel Smith <ansuelsmth@...il.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Boris Brezillon <bbrezillon@...nel.org>,
        linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/3] Implement nvmem support for mtd

The mtd support for the nvmem api has been stalled from 2018 with a patch
half pushed hoping that a scheme is found for the mtd name later. This
patchset try to address this.

The solution is simple.
New partitions scheme should always have the partitions {} structure and 
declare subnodes as partitions is deprecated and should not be used anymore.
Fixed-partitions parser is changed to parse direct subnode as partitions
only if the appropriate compatible is used. This change make possible
the use of nvmem-partitions compatible and the entire partition node can
be parsed by the nvmem of framework.
The current code register the partition to the nvmem framework every time
but skip actually of_node parting. The new nvmem-partitions compatible is
used to enable of_node parsing on the desired partitions.

Ansuel Smith (3):
  mtd: partitions: ofpart: skip subnodes parse with compatible
  mtd: core: add nvmem-partitions compatible to parse mtd as nvmem cells
  dt-bindings: mtd: Document use of nvmem-partitions compatible

 .../mtd/partitions/nvmem-partitions.yaml      | 105 ++++++++++++++++++
 drivers/mtd/mtdcore.c                         |   3 +-
 drivers/mtd/parsers/ofpart.c                  |   5 +
 3 files changed, 112 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/mtd/partitions/nvmem-partitions.yaml

-- 
2.30.0