[PATCH 0/3] of: fix overlay modification of const variable

From: frowand . list
Date: Mon Apr 24 2017 - 01:20:51 EST


From: Frank Rowand <frank.rowand@xxxxxxxx>

When adjusting overlay phandles to apply to the live device tree, can
not modify the property value because it is type const.

This is to resolve the issue found by Stephen Boyd [1] when he changed
the type of struct property.value from void * to const void *. As
a result of the type change, the overlay code had compile errors
where the resolver updates phandle values.

[1] http://lkml.iu.edu/hypermail/linux/kernel/1702.1/04160.html

Patch 1 fixes the const variable problem.

Patches 2 and 3 are minor fixups for issues that became visible
while implementing patch 1.

Frank Rowand (3):
of: overlay_adjust_phandles() - do not modify const field
of: make __of_attach_node() static
of: detect invalid phandle in overlay

drivers/of/base.c | 4 ++--
drivers/of/dynamic.c | 30 ++++++++++++++++++++++-------
drivers/of/of_private.h | 4 +++-
drivers/of/overlay.c | 4 ++++
drivers/of/resolver.c | 51 ++++++++++++++++++++++++++++++-------------------
5 files changed, 63 insertions(+), 30 deletions(-)

--
Frank Rowand <frank.rowand@xxxxxxxx>