lkml.org 
[lkml]   [2018]   [Jan]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH 0/2] of: change overlay apply input data from EDT to FDT
Hi Frank,

On Mon, Jan 29, 2018 at 3:53 AM, <frowand.list@gmail.com> wrote:
> From: Frank Rowand <frank.rowand@sony.com>
>
> Move duplicating and unflattening of an overlay flattened devicetree
> (FDT) into the overlay application code. To accomplish this,
> of_overlay_apply() is replaced by of_overlay_fdt_apply().
>
> The copy of the FDT (aka "duplicate FDT") now belongs to devicetree
> code, which is thus responsible for freeing the duplicate FDT. The
> caller of of_overlay_fdt_apply() remains responsible for freeing the
> original FDT.
>
> The unflattened device tree (aka expanded device tree, EDT) now
> belongs to devicetree code, which is thus responsible for freeing
> the EDT.
>
> These ownership changes prevent early freeing of the duplicated FDT
> or the EDT, which could result in use after free errors.
>
> These changes led to migrating some unittest overlay data into
> their own devicetree source files, and then converting most of
> them to use sugar syntax instead of hand coding fragments.

Thanks for your series!

> Frank Rowand (2):
> of: change overlay apply input data from EDT to FDT
> of: convert unittest overlay devicetree source to sugar syntax

Do you plan to update Documentation/devicetree/overlay-notes.txt
and Documentation/devicetree/bindings/fpga/fpga-region.txt, too?

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

\
 
 \ /
  Last update: 2018-01-29 15:09    [W:0.465 / U:1.796 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site