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 for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Fri, 15 Oct 2021 12:32:34 +0200
From:   Miquel Raynal <>
To:     Miquel Raynal <>,
        Richard Weinberger <>,
        Vignesh Raghavendra <>,
        Tudor Ambarus <>
Subject: Re: [PATCH 1/9] mtd: rawnand: ams-delta: Keep the driver compatible with on-die ECC engines

On Tue, 2021-09-28 at 22:22:40 UTC, Miquel Raynal wrote:
> Following the introduction of the generic ECC engine infrastructure, it
> was necessary to reorganize the code and move the ECC configuration in
> the ->attach_chip() hook. Failing to do that properly lead to a first
> series of fixes supposed to stabilize the situation. Unfortunately, this
> only fixed the use of software ECC engines, preventing any other kind of
> engine to be used, including on-die ones.
> It is now time to (finally) fix the situation by ensuring that we still
> provide a default (eg. software ECC) but will still support different
> ECC engines such as on-die ECC engines if properly described in the
> device tree.
> There are no changes needed on the core side in order to do this, but we
> just need to leverage the logic there which allows:
> 1- a subsystem default (set to Host engines in the raw NAND world)
> 2- a driver specific default (here set to software ECC engines)
> 3- any type of engine requested by the user (ie. described in the DT)
> As the raw NAND subsystem has not yet been fully converted to the ECC
> engine infrastructure, in order to provide a default ECC engine for this
> driver we need to set chip->ecc.engine_type *before* calling
> nand_scan(). During the initialization step, the core will consider this
> entry as the default engine for this driver. This value may of course
> be overloaded by the user if the usual DT properties are provided.
> Fixes: 59d93473323a ("mtd: rawnand: ams-delta: Move the ECC initialization to ->attach_chip()")
> Cc:
> Signed-off-by: Miquel Raynal <>

Applied to nand/next.


Powered by blists - more mailing lists