From: Frank Rowand <frank.rowand@xxxxxxxx> 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. Frank Rowand (2): of: change overlay apply input data from EDT to FDT of: convert unittest overlay devicetree source to sugar syntax drivers/of/of_private.h | 1 + drivers/of/overlay.c | 124 +++++++++- drivers/of/resolver.c | 6 - drivers/of/unittest-data/Makefile | 16 ++ drivers/of/unittest-data/overlay.dts | 101 ++++---- drivers/of/unittest-data/overlay_0.dts | 14 ++ drivers/of/unittest-data/overlay_1.dts | 14 ++ drivers/of/unittest-data/overlay_10.dts | 27 +++ drivers/of/unittest-data/overlay_11.dts | 28 +++ drivers/of/unittest-data/overlay_12.dts | 14 ++ drivers/of/unittest-data/overlay_13.dts | 14 ++ drivers/of/unittest-data/overlay_15.dts | 30 +++ drivers/of/unittest-data/overlay_2.dts | 9 + drivers/of/unittest-data/overlay_3.dts | 9 + drivers/of/unittest-data/overlay_4.dts | 18 ++ drivers/of/unittest-data/overlay_5.dts | 9 + drivers/of/unittest-data/overlay_6.dts | 10 + drivers/of/unittest-data/overlay_7.dts | 10 + drivers/of/unittest-data/overlay_8.dts | 10 + drivers/of/unittest-data/overlay_9.dts | 10 + drivers/of/unittest-data/overlay_bad_phandle.dts | 23 +- drivers/of/unittest-data/overlay_bad_symbol.dts | 27 +-- drivers/of/unittest-data/tests-overlay.dtsi | 217 +---------------- drivers/of/unittest.c | 296 +++++++++++------------ include/linux/of.h | 7 - 25 files changed, 564 insertions(+), 480 deletions(-) create mode 100644 drivers/of/unittest-data/overlay_0.dts create mode 100644 drivers/of/unittest-data/overlay_1.dts create mode 100644 drivers/of/unittest-data/overlay_10.dts create mode 100644 drivers/of/unittest-data/overlay_11.dts create mode 100644 drivers/of/unittest-data/overlay_12.dts create mode 100644 drivers/of/unittest-data/overlay_13.dts create mode 100644 drivers/of/unittest-data/overlay_15.dts create mode 100644 drivers/of/unittest-data/overlay_2.dts create mode 100644 drivers/of/unittest-data/overlay_3.dts create mode 100644 drivers/of/unittest-data/overlay_4.dts create mode 100644 drivers/of/unittest-data/overlay_5.dts create mode 100644 drivers/of/unittest-data/overlay_6.dts create mode 100644 drivers/of/unittest-data/overlay_7.dts create mode 100644 drivers/of/unittest-data/overlay_8.dts create mode 100644 drivers/of/unittest-data/overlay_9.dts -- Frank Rowand <frank.rowand@xxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
