* [PATCH v5 0/4] of: change overlay apply input data from unflattened
@ 2018-03-02 1:51 frowand.list
2018-03-02 1:51 ` [PATCH v5 1/4] of: change overlay apply input data from unflattened to FDT frowand.list
` (4 more replies)
0 siblings, 5 replies; 8+ messages in thread
From: frowand.list @ 2018-03-02 1:51 UTC (permalink / raw)
To: Rob Herring, pantelis.antoniou, Pantelis Antoniou
Cc: devicetree, linux-kernel, geert, laurent.pinchart+renesas
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 devicetree now belongs to devicetree code, which is
thus responsible for freeing the unflattened devicetree.
These ownership changes prevent early freeing of the duplicated FDT
or the unflattened devicetree, 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.
Changes from v4:
(all in patch 1/4)
- move of_overlay_fdt_apply() prototype from of_private.h to of.h
- of_overlay_apply(): add kfree(fdt) if resolve phandles or
initialize changeset fail
- of_overlay_fdt_apply(): add parameter size of overlay_fdt and use
it for some additional validation of the overlay fdt
- update unittest.c with additional parameter to of_overlay_fdt_apply()
Changes from v3:
- patch 1/4: OF_OVERLAY: add select OF_FLATTREE
Changes from v2:
- improve error messages in patch 4/4, as suggested by Geert
Changes from v1:
- rebase on v4.16-rc1
- update documentation
- split out error message to a separate patch
Frank Rowand (4):
of: change overlay apply input data from unflattened to FDT
of: Documentation: of_overlay_apply() replaced by
of_overlay_fdt_apply()
of: convert unittest overlay devicetree source to sugar syntax
of: improve reporting invalid overlay target path
Documentation/devicetree/overlay-notes.txt | 4 +-
drivers/of/Kconfig | 1 +
drivers/of/overlay.c | 134 +++++++++--
drivers/of/resolver.c | 6 -
drivers/of/unittest-data/Makefile | 28 ++-
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 | 25 +-
drivers/of/unittest-data/tests-overlay.dtsi | 217 +----------------
drivers/of/unittest.c | 294 +++++++++++------------
include/linux/of.h | 6 +-
26 files changed, 582 insertions(+), 483 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@sony.com>
^ permalink raw reply [flat|nested] 8+ messages in thread
* [PATCH v5 1/4] of: change overlay apply input data from unflattened to FDT
2018-03-02 1:51 [PATCH v5 0/4] of: change overlay apply input data from unflattened frowand.list
@ 2018-03-02 1:51 ` frowand.list
2018-03-02 9:20 ` Geert Uytterhoeven
2018-03-02 1:51 ` [PATCH v5 2/4] of: Documentation: of_overlay_apply() replaced by of_overlay_fdt_apply() frowand.list
` (3 subsequent siblings)
4 siblings, 1 reply; 8+ messages in thread
From: frowand.list @ 2018-03-02 1:51 UTC (permalink / raw)
To: Rob Herring, pantelis.antoniou, Pantelis Antoniou
Cc: devicetree, linux-kernel, geert, laurent.pinchart+renesas
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 devicetree now belongs to devicetree code, which is
thus responsible for freeing the unflattened devicetree.
These ownership changes prevent early freeing of the duplicated FDT
or the unflattened devicetree, which could result in use after free
errors.
of_overlay_fdt_apply() is a private function for the anticipated
overlay loader.
Update unittest.c to use of_overlay_fdt_apply() instead of
of_overlay_apply().
Move overlay fragments from artificial locations in
drivers/of/unittest-data/tests-overlay.dtsi into one devicetree
source file per overlay. This led to changes in
drivers/of/unitest-data/Makefile and drivers/of/unitest.c.
- Add overlay directives to the overlay devicetree source files so
that dtc will compile them as true overlays into one FDT data
chunk per overlay.
- Set CFLAGS for drivers/of/unittest-data/testcases.dts so that
symbols will be generated for overlay resolution of overlays
that are no longer artificially contained in testcases.dts
- Unflatten and apply each unittest overlay FDT using
of_overlay_fdt_apply().
- Enable the of_resolve_phandles() check for whether the unflattened
overlay is detached. This check was previously disabled because the
overlays from tests-overlay.dtsi were not unflattened into detached
trees.
- Other changes to unittest.c infrastructure to manage multiple test
FDTs built into the kernel image (access by name instead of
arbitrary number).
- of_unittest_overlay_high_level(): previously unused code to add
properties from the overlay_base devicetree to the live tree
was triggered by the restructuring of tests-overlay.dtsi and thus
testcases.dts. This exposed two bugs: (1) the need to dup a
property before adding it, and (2) property 'name' is
auto-generated in the unflatten code and thus will be a duplicate
in the __symbols__ node - do not treat this duplicate as an error.
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
---
There are checkpatch warnings. I have reviewed them and feel they
can be ignored. They are "line over 80 characters" for either
pre-existing long lines, or lines in devicetree source files.
There are still some functions in unittest.c that should be tagged
__init due to changes in this patch, but modpost is not warning of
them and they are not a risk because they are only called from
__init functions. A sweep of unittest.c for functions that
should be tagged __init is on the todo list.
Rob, the good news is that I have add making unittest a loadable
module to my todo list.
Changes from v4:
- move of_overlay_fdt_apply() prototype from of_private.h to of.h
- of_overlay_apply(): add kfree(fdt) if resolve phandles or
initialize changeset fail
- of_overlay_fdt_apply(): add parameter size of overlay_fdt and use
it for some additional validation of the overlay fdt
- update unittest.c with additional parameter to of_overlay_fdt_apply()
Changes from v3:
- OF_OVERLAY: add select OF_FLATTREE
Changes from v1:
- rebase on v4.16-rc1
drivers/of/Kconfig | 1 +
drivers/of/overlay.c | 112 ++++++++++-
drivers/of/resolver.c | 6 -
drivers/of/unittest-data/Makefile | 28 ++-
drivers/of/unittest-data/overlay_0.dts | 14 ++
drivers/of/unittest-data/overlay_1.dts | 14 ++
drivers/of/unittest-data/overlay_10.dts | 34 ++++
drivers/of/unittest-data/overlay_11.dts | 34 ++++
drivers/of/unittest-data/overlay_12.dts | 14 ++
drivers/of/unittest-data/overlay_13.dts | 14 ++
drivers/of/unittest-data/overlay_15.dts | 35 ++++
drivers/of/unittest-data/overlay_2.dts | 14 ++
drivers/of/unittest-data/overlay_3.dts | 14 ++
drivers/of/unittest-data/overlay_4.dts | 23 +++
drivers/of/unittest-data/overlay_5.dts | 14 ++
drivers/of/unittest-data/overlay_6.dts | 15 ++
drivers/of/unittest-data/overlay_7.dts | 15 ++
drivers/of/unittest-data/overlay_8.dts | 15 ++
drivers/of/unittest-data/overlay_9.dts | 15 ++
drivers/of/unittest-data/tests-overlay.dtsi | 213 --------------------
drivers/of/unittest.c | 294 ++++++++++++++--------------
include/linux/of.h | 6 +-
22 files changed, 559 insertions(+), 385 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
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 783e0870bd22..ad3fcad4d75b 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -92,6 +92,7 @@ config OF_RESOLVE
config OF_OVERLAY
bool "Device Tree overlays"
select OF_DYNAMIC
+ select OF_FLATTREE
select OF_RESOLVE
help
Overlays are a method to dynamically modify part of the kernel's
diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
index 3397d7642958..e3d7f69a8333 100644
--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c
@@ -12,10 +12,12 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
+#include <linux/of_fdt.h>
#include <linux/string.h>
#include <linux/ctype.h>
#include <linux/errno.h>
#include <linux/slab.h>
+#include <linux/libfdt.h>
#include <linux/err.h>
#include <linux/idr.h>
@@ -33,7 +35,9 @@ struct fragment {
/**
* struct overlay_changeset
+ * @id: changeset identifier
* @ovcs_list: list on which we are located
+ * @fdt: FDT that was unflattened to create @overlay_tree
* @overlay_tree: expanded device tree that contains the fragment nodes
* @count: count of fragment structures
* @fragments: fragment nodes in the overlay expanded device tree
@@ -43,6 +47,7 @@ struct fragment {
struct overlay_changeset {
int id;
struct list_head ovcs_list;
+ const void *fdt;
struct device_node *overlay_tree;
int count;
struct fragment *fragments;
@@ -503,7 +508,8 @@ static struct device_node *find_target_node(struct device_node *info_node)
/**
* init_overlay_changeset() - initialize overlay changeset from overlay tree
- * @ovcs Overlay changeset to build
+ * @ovcs: Overlay changeset to build
+ * @fdt: the FDT that was unflattened to create @tree
* @tree: Contains all the overlay fragments and overlay fixup nodes
*
* Initialize @ovcs. Populate @ovcs->fragments with node information from
@@ -514,7 +520,7 @@ static struct device_node *find_target_node(struct device_node *info_node)
* detected in @tree, or -ENOSPC if idr_alloc() error.
*/
static int init_overlay_changeset(struct overlay_changeset *ovcs,
- struct device_node *tree)
+ const void *fdt, struct device_node *tree)
{
struct device_node *node, *overlay_node;
struct fragment *fragment;
@@ -535,6 +541,7 @@ static int init_overlay_changeset(struct overlay_changeset *ovcs,
pr_debug("%s() tree is not root\n", __func__);
ovcs->overlay_tree = tree;
+ ovcs->fdt = fdt;
INIT_LIST_HEAD(&ovcs->ovcs_list);
@@ -606,6 +613,7 @@ static int init_overlay_changeset(struct overlay_changeset *ovcs,
}
if (!cnt) {
+ pr_err("no fragments or symbols in overlay\n");
ret = -EINVAL;
goto err_free_fragments;
}
@@ -642,11 +650,24 @@ static void free_overlay_changeset(struct overlay_changeset *ovcs)
}
kfree(ovcs->fragments);
+ /*
+ * TODO
+ *
+ * would like to: kfree(ovcs->overlay_tree);
+ * but can not since drivers may have pointers into this data
+ *
+ * would like to: kfree(ovcs->fdt);
+ * but can not since drivers may have pointers into this data
+ */
+
kfree(ovcs);
}
-/**
+/*
+ * internal documentation
+ *
* of_overlay_apply() - Create and apply an overlay changeset
+ * @fdt: the FDT that was unflattened to create @tree
* @tree: Expanded overlay device tree
* @ovcs_id: Pointer to overlay changeset id
*
@@ -685,21 +706,29 @@ static void free_overlay_changeset(struct overlay_changeset *ovcs)
* id is returned to *ovcs_id.
*/
-int of_overlay_apply(struct device_node *tree, int *ovcs_id)
+static int of_overlay_apply(const void *fdt, struct device_node *tree,
+ int *ovcs_id)
{
struct overlay_changeset *ovcs;
int ret = 0, ret_revert, ret_tmp;
- *ovcs_id = 0;
+ /*
+ * As of this point, fdt and tree belong to the overlay changeset.
+ * overlay changeset code is responsible for freeing them.
+ */
if (devicetree_corrupt()) {
pr_err("devicetree state suspect, refuse to apply overlay\n");
+ kfree(fdt);
+ kfree(tree);
ret = -EBUSY;
goto out;
}
ovcs = kzalloc(sizeof(*ovcs), GFP_KERNEL);
if (!ovcs) {
+ kfree(fdt);
+ kfree(tree);
ret = -ENOMEM;
goto out;
}
@@ -709,12 +738,17 @@ int of_overlay_apply(struct device_node *tree, int *ovcs_id)
ret = of_resolve_phandles(tree);
if (ret)
- goto err_free_overlay_changeset;
+ goto err_free_tree;
- ret = init_overlay_changeset(ovcs, tree);
+ ret = init_overlay_changeset(ovcs, fdt, tree);
if (ret)
- goto err_free_overlay_changeset;
+ goto err_free_tree;
+ /*
+ * after overlay_notify(), ovcs->overlay_tree related pointers may have
+ * leaked to drivers, so can not kfree() tree, aka ovcs->overlay_tree;
+ * and can not free fdt, aka ovcs->fdt
+ */
ret = overlay_notify(ovcs, OF_OVERLAY_PRE_APPLY);
if (ret) {
pr_err("overlay changeset pre-apply notify error %d\n", ret);
@@ -754,6 +788,10 @@ int of_overlay_apply(struct device_node *tree, int *ovcs_id)
goto out_unlock;
+err_free_tree:
+ kfree(fdt);
+ kfree(tree);
+
err_free_overlay_changeset:
free_overlay_changeset(ovcs);
@@ -766,7 +804,63 @@ int of_overlay_apply(struct device_node *tree, int *ovcs_id)
return ret;
}
-EXPORT_SYMBOL_GPL(of_overlay_apply);
+
+int of_overlay_fdt_apply(const void *overlay_fdt, u32 overlay_fdt_size,
+ int *ovcs_id)
+{
+ const void *new_fdt;
+ int ret;
+ u32 size;
+ struct device_node *overlay_root;
+
+ *ovcs_id = 0;
+ ret = 0;
+
+ if (overlay_fdt_size < sizeof(struct fdt_header) ||
+ fdt_check_header(overlay_fdt)) {
+ pr_err("Invalid overlay_fdt header\n");
+ return -EINVAL;
+ }
+
+ size = fdt_totalsize(overlay_fdt);
+ if (overlay_fdt_size < size)
+ return -EINVAL;
+
+ /*
+ * Must create permanent copy of FDT because of_fdt_unflatten_tree()
+ * will create pointers to the passed in FDT in the unflattened tree.
+ */
+ new_fdt = kmemdup(overlay_fdt, size, GFP_KERNEL);
+ if (!new_fdt)
+ return -ENOMEM;
+
+ of_fdt_unflatten_tree(new_fdt, NULL, &overlay_root);
+ if (!overlay_root) {
+ pr_err("unable to unflatten overlay_fdt\n");
+ ret = -EINVAL;
+ goto out_free_new_fdt;
+ }
+
+ ret = of_overlay_apply(new_fdt, overlay_root, ovcs_id);
+ if (ret < 0) {
+ /*
+ * new_fdt and overlay_root now belong to the overlay
+ * changeset.
+ * overlay changeset code is responsible for freeing them.
+ */
+ goto out;
+ }
+
+ return 0;
+
+
+out_free_new_fdt:
+ kfree(new_fdt);
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(of_overlay_fdt_apply);
/*
* Find @np in @tree.
diff --git a/drivers/of/resolver.c b/drivers/of/resolver.c
index 740d19bde601..b2f645187213 100644
--- a/drivers/of/resolver.c
+++ b/drivers/of/resolver.c
@@ -269,17 +269,11 @@ int of_resolve_phandles(struct device_node *overlay)
goto out;
}
-#if 0
- Temporarily disable check so that old style overlay unittests
- do not fail when of_resolve_phandles() is moved into
- of_overlay_apply().
-
if (!of_node_check_flag(overlay, OF_DETACHED)) {
pr_err("overlay not detached\n");
err = -EINVAL;
goto out;
}
-#endif
phandle_delta = live_tree_max_phandle() + 1;
adjust_overlay_phandles(overlay, phandle_delta);
diff --git a/drivers/of/unittest-data/Makefile b/drivers/of/unittest-data/Makefile
index df697976740a..8fd0ea4b92b0 100644
--- a/drivers/of/unittest-data/Makefile
+++ b/drivers/of/unittest-data/Makefile
@@ -1,8 +1,22 @@
# SPDX-License-Identifier: GPL-2.0
-DTC_FLAGS_testcases := -Wno-interrupts_property
obj-y += testcases.dtb.o
obj-$(CONFIG_OF_OVERLAY) += overlay.dtb.o \
+ overlay_0.dtb.o \
+ overlay_1.dtb.o \
+ overlay_2.dtb.o \
+ overlay_3.dtb.o \
+ overlay_4.dtb.o \
+ overlay_5.dtb.o \
+ overlay_6.dtb.o \
+ overlay_7.dtb.o \
+ overlay_8.dtb.o \
+ overlay_9.dtb.o \
+ overlay_10.dtb.o \
+ overlay_11.dtb.o \
+ overlay_12.dtb.o \
+ overlay_13.dtb.o \
+ overlay_15.dtb.o \
overlay_bad_phandle.dtb.o \
overlay_bad_symbol.dtb.o \
overlay_base.dtb.o
@@ -10,10 +24,14 @@ obj-$(CONFIG_OF_OVERLAY) += overlay.dtb.o \
targets += $(foreach suffix, dtb dtb.S, $(patsubst %.dtb.o,%.$(suffix),$(obj-y)))
# enable creation of __symbols__ node
-DTC_FLAGS_overlay := -@
-DTC_FLAGS_overlay_bad_phandle := -@
-DTC_FLAGS_overlay_bad_symbol := -@
-DTC_FLAGS_overlay_base := -@
+DTC_FLAGS_overlay += -@
+DTC_FLAGS_overlay_bad_phandle += -@
+DTC_FLAGS_overlay_bad_symbol += -@
+DTC_FLAGS_overlay_base += -@
+DTC_FLAGS_testcases += -@
+
+# suppress warnings about intentional errors
+DTC_FLAGS_testcases += -Wno-interrupts_property
.PRECIOUS: \
$(obj)/%.dtb.S \
diff --git a/drivers/of/unittest-data/overlay_0.dts b/drivers/of/unittest-data/overlay_0.dts
new file mode 100644
index 000000000000..ac0f9e0fe65f
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_0.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_0 - enable using absolute target path */
+
+ fragment@0 {
+ target-path = "/testcase-data/overlay-node/test-bus/test-unittest0";
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_1.dts b/drivers/of/unittest-data/overlay_1.dts
new file mode 100644
index 000000000000..e92a626e2948
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_1.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_1 - disable using absolute target path */
+
+ fragment@0 {
+ target-path = "/testcase-data/overlay-node/test-bus/test-unittest1";
+ __overlay__ {
+ status = "disabled";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_10.dts b/drivers/of/unittest-data/overlay_10.dts
new file mode 100644
index 000000000000..445925a10cd3
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_10.dts
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_10 */
+ /* overlays 8, 9, 10, 11 application and removal in bad sequence */
+
+ fragment@0 {
+ target-path = "/testcase-data/overlay-node/test-bus";
+ __overlay__ {
+
+ /* suppress DTC warning */
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ test-unittest10 {
+ compatible = "unittest";
+ status = "okay";
+ reg = <10>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ test-unittest101 {
+ compatible = "unittest";
+ status = "okay";
+ reg = <1>;
+ };
+
+ };
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_11.dts b/drivers/of/unittest-data/overlay_11.dts
new file mode 100644
index 000000000000..c1d14f34359e
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_11.dts
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_11 */
+ /* overlays 8, 9, 10, 11 application and removal in bad sequence */
+
+ fragment@0 {
+ target-path = "/testcase-data/overlay-node/test-bus";
+ __overlay__ {
+
+ /* suppress DTC warning */
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ test-unittest11 {
+ compatible = "unittest";
+ status = "okay";
+ reg = <11>;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ test-unittest111 {
+ compatible = "unittest";
+ status = "okay";
+ reg = <1>;
+ };
+
+ };
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_12.dts b/drivers/of/unittest-data/overlay_12.dts
new file mode 100644
index 000000000000..ca3441e2cbec
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_12.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_12 - enable using absolute target path (i2c) */
+
+ fragment@0 {
+ target-path = "/testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12";
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_13.dts b/drivers/of/unittest-data/overlay_13.dts
new file mode 100644
index 000000000000..3c30dec63894
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_13.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_13 - disable using absolute target path (i2c) */
+
+ fragment@0 {
+ target-path = "/testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13";
+ __overlay__ {
+ status = "disabled";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_15.dts b/drivers/of/unittest-data/overlay_15.dts
new file mode 100644
index 000000000000..44e44c62b739
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_15.dts
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_15 - mux overlay */
+
+ fragment@0 {
+ target-path = "/testcase-data/overlay-node/test-bus/i2c-test-bus";
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ test-unittest15 {
+ reg = <11>;
+ compatible = "unittest-i2c-mux";
+ status = "okay";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+
+ test-mux-dev {
+ reg = <32>;
+ compatible = "unittest-i2c-dev";
+ status = "okay";
+ };
+ };
+ };
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_2.dts b/drivers/of/unittest-data/overlay_2.dts
new file mode 100644
index 000000000000..cf1e4245b7ce
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_2.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_2 - enable using label */
+
+ fragment@0 {
+ target = <&unittest2>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_3.dts b/drivers/of/unittest-data/overlay_3.dts
new file mode 100644
index 000000000000..158dc44fc20a
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_3.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_3 - disable using label */
+
+ fragment@0 {
+ target = <&unittest3>;
+ __overlay__ {
+ status = "disabled";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_4.dts b/drivers/of/unittest-data/overlay_4.dts
new file mode 100644
index 000000000000..b4a2e6c6b016
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_4.dts
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_4 - test insertion of a full node */
+
+ fragment@0 {
+ target = <&unittestbus>;
+ __overlay__ {
+
+ /* suppress DTC warning */
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ test-unittest4 {
+ compatible = "unittest";
+ status = "okay";
+ reg = <4>;
+ };
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_5.dts b/drivers/of/unittest-data/overlay_5.dts
new file mode 100644
index 000000000000..02ad25c1f19c
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_5.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_5 - test overlay apply revert */
+
+ fragment@0 {
+ target-path = "/testcase-data/overlay-node/test-bus/test-unittest5";
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_6.dts b/drivers/of/unittest-data/overlay_6.dts
new file mode 100644
index 000000000000..a14e965f5497
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_6.dts
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_6 */
+ /* overlays 6, 7 application and removal in sequence */
+
+ fragment@0 {
+ target-path = "/testcase-data/overlay-node/test-bus/test-unittest6";
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_7.dts b/drivers/of/unittest-data/overlay_7.dts
new file mode 100644
index 000000000000..4bd7e423209c
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_7.dts
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_7 */
+ /* overlays 6, 7 application and removal in sequence */
+
+ fragment@0 {
+ target-path = "/testcase-data/overlay-node/test-bus/test-unittest7";
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_8.dts b/drivers/of/unittest-data/overlay_8.dts
new file mode 100644
index 000000000000..5b21c53945a9
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_8.dts
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_8 */
+ /* overlays 8, 9, 10, 11 application and removal in bad sequence */
+
+ fragment@0 {
+ target-path = "/testcase-data/overlay-node/test-bus/test-unittest8";
+ __overlay__ {
+ status = "okay";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/overlay_9.dts b/drivers/of/unittest-data/overlay_9.dts
new file mode 100644
index 000000000000..20ff055a5349
--- /dev/null
+++ b/drivers/of/unittest-data/overlay_9.dts
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+/plugin/;
+
+/ {
+ /* overlay_9 */
+ /* overlays 8, 9, 10, 11 application and removal in bad sequence */
+
+ fragment@0 {
+ target-path = "/testcase-data/overlay-node/test-bus/test-unittest8";
+ __overlay__ {
+ property-foo = "bar";
+ };
+ };
+};
diff --git a/drivers/of/unittest-data/tests-overlay.dtsi b/drivers/of/unittest-data/tests-overlay.dtsi
index 7b8001ab9f3a..fa2fb43bccac 100644
--- a/drivers/of/unittest-data/tests-overlay.dtsi
+++ b/drivers/of/unittest-data/tests-overlay.dtsi
@@ -113,218 +113,5 @@
};
};
};
-
- /* test enable using absolute target path */
- overlay0 {
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/test-unittest0";
- __overlay__ {
- status = "okay";
- };
- };
- };
-
- /* test disable using absolute target path */
- overlay1 {
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/test-unittest1";
- __overlay__ {
- status = "disabled";
- };
- };
- };
-
- /* test enable using label */
- overlay2 {
- fragment@0 {
- target = <&unittest2>;
- __overlay__ {
- status = "okay";
- };
- };
- };
-
- /* test disable using label */
- overlay3 {
- fragment@0 {
- target = <&unittest3>;
- __overlay__ {
- status = "disabled";
- };
- };
- };
-
- /* test insertion of a full node */
- overlay4 {
- fragment@0 {
- target = <&unittestbus>;
- __overlay__ {
-
- /* suppress DTC warning */
- #address-cells = <1>;
- #size-cells = <0>;
-
- test-unittest4 {
- compatible = "unittest";
- status = "okay";
- reg = <4>;
- };
- };
- };
- };
-
- /* test overlay apply revert */
- overlay5 {
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/test-unittest5";
- __overlay__ {
- status = "okay";
- };
- };
- };
-
- /* test overlays application and removal in sequence */
- overlay6 {
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/test-unittest6";
- __overlay__ {
- status = "okay";
- };
- };
- };
- overlay7 {
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/test-unittest7";
- __overlay__ {
- status = "okay";
- };
- };
- };
-
- /* test overlays application and removal in bad sequence */
- overlay8 {
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/test-unittest8";
- __overlay__ {
- status = "okay";
- };
- };
- };
- overlay9 {
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/test-unittest8";
- __overlay__ {
- property-foo = "bar";
- };
- };
- };
-
- overlay10 {
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus";
- __overlay__ {
-
- /* suppress DTC warning */
- #address-cells = <1>;
- #size-cells = <0>;
-
- test-unittest10 {
- compatible = "unittest";
- status = "okay";
- reg = <10>;
-
- #address-cells = <1>;
- #size-cells = <0>;
-
- test-unittest101 {
- compatible = "unittest";
- status = "okay";
- reg = <1>;
- };
-
- };
- };
- };
- };
-
- overlay11 {
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus";
- __overlay__ {
-
- /* suppress DTC warning */
- #address-cells = <1>;
- #size-cells = <0>;
-
- test-unittest11 {
- compatible = "unittest";
- status = "okay";
- reg = <11>;
-
- #address-cells = <1>;
- #size-cells = <0>;
-
- test-unittest111 {
- compatible = "unittest";
- status = "okay";
- reg = <1>;
- };
-
- };
- };
- };
- };
-
- /* test enable using absolute target path (i2c) */
- overlay12 {
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest12";
- __overlay__ {
- status = "okay";
- };
- };
- };
-
- /* test disable using absolute target path (i2c) */
- overlay13 {
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/i2c-test-bus/test-unittest13";
- __overlay__ {
- status = "disabled";
- };
- };
- };
-
- /* test mux overlay */
- overlay15 {
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/i2c-test-bus";
- __overlay__ {
- #address-cells = <1>;
- #size-cells = <0>;
- test-unittest15 {
- reg = <11>;
- compatible = "unittest-i2c-mux";
- status = "okay";
-
- #address-cells = <1>;
- #size-cells = <0>;
-
- i2c@0 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
-
- test-mux-dev {
- reg = <32>;
- compatible = "unittest-i2c-dev";
- status = "okay";
- };
- };
- };
- };
- };
- };
-
};
};
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 7a9abaae874d..4855f42edda2 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -45,6 +45,8 @@
failed; \
})
+static int __init overlay_data_apply(const char *overlay_name, int *overlay_id);
+
static void __init of_unittest_find_node_by_name(void)
{
struct device_node *np;
@@ -997,8 +999,7 @@ static int __init unittest_data_add(void)
}
/*
- * This lock normally encloses of_overlay_apply() as well as
- * of_resolve_phandles().
+ * This lock normally encloses of_resolve_phandles()
*/
of_overlay_mutex_lock();
@@ -1191,12 +1192,12 @@ static int of_unittest_device_exists(int unittest_nr, enum overlay_type ovtype)
return 0;
}
-static const char *overlay_path(int nr)
+static const char *overlay_name_from_nr(int nr)
{
static char buf[256];
snprintf(buf, sizeof(buf) - 1,
- "/testcase-data/overlay%d", nr);
+ "overlay_%d", nr);
buf[sizeof(buf) - 1] = '\0';
return buf;
@@ -1263,25 +1264,19 @@ static void of_unittest_destroy_tracked_overlays(void)
} while (defers > 0);
}
-static int of_unittest_apply_overlay(int overlay_nr, int unittest_nr,
+static int __init of_unittest_apply_overlay(int overlay_nr, int unittest_nr,
int *overlay_id)
{
struct device_node *np = NULL;
+ const char *overlay_name;
int ret;
- np = of_find_node_by_path(overlay_path(overlay_nr));
- if (np == NULL) {
- unittest(0, "could not find overlay node @\"%s\"\n",
- overlay_path(overlay_nr));
- ret = -EINVAL;
- goto out;
- }
+ overlay_name = overlay_name_from_nr(overlay_nr);
- *overlay_id = 0;
- ret = of_overlay_apply(np, overlay_id);
- if (ret < 0) {
- unittest(0, "could not create overlay from \"%s\"\n",
- overlay_path(overlay_nr));
+ ret = overlay_data_apply(overlay_name, overlay_id);
+ if (!ret) {
+ unittest(0, "could not apply overlay \"%s\"\n",
+ overlay_name);
goto out;
}
of_unittest_track_overlay(*overlay_id);
@@ -1295,15 +1290,16 @@ static int of_unittest_apply_overlay(int overlay_nr, int unittest_nr,
}
/* apply an overlay while checking before and after states */
-static int of_unittest_apply_overlay_check(int overlay_nr, int unittest_nr,
- int before, int after, enum overlay_type ovtype)
+static int __init of_unittest_apply_overlay_check(int overlay_nr,
+ int unittest_nr, int before, int after,
+ enum overlay_type ovtype)
{
int ret, ovcs_id;
/* unittest device must not be in before state */
if (of_unittest_device_exists(unittest_nr, ovtype) != before) {
- unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
- overlay_path(overlay_nr),
+ unittest(0, "%s with device @\"%s\" %s\n",
+ overlay_name_from_nr(overlay_nr),
unittest_path(unittest_nr, ovtype),
!before ? "enabled" : "disabled");
return -EINVAL;
@@ -1318,8 +1314,8 @@ static int of_unittest_apply_overlay_check(int overlay_nr, int unittest_nr,
/* unittest device must be to set to after state */
if (of_unittest_device_exists(unittest_nr, ovtype) != after) {
- unittest(0, "overlay @\"%s\" failed to create @\"%s\" %s\n",
- overlay_path(overlay_nr),
+ unittest(0, "%s failed to create @\"%s\" %s\n",
+ overlay_name_from_nr(overlay_nr),
unittest_path(unittest_nr, ovtype),
!after ? "enabled" : "disabled");
return -EINVAL;
@@ -1337,8 +1333,8 @@ static int of_unittest_apply_revert_overlay_check(int overlay_nr,
/* unittest device must be in before state */
if (of_unittest_device_exists(unittest_nr, ovtype) != before) {
- unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
- overlay_path(overlay_nr),
+ unittest(0, "%s with device @\"%s\" %s\n",
+ overlay_name_from_nr(overlay_nr),
unittest_path(unittest_nr, ovtype),
!before ? "enabled" : "disabled");
return -EINVAL;
@@ -1354,8 +1350,8 @@ static int of_unittest_apply_revert_overlay_check(int overlay_nr,
/* unittest device must be in after state */
if (of_unittest_device_exists(unittest_nr, ovtype) != after) {
- unittest(0, "overlay @\"%s\" failed to create @\"%s\" %s\n",
- overlay_path(overlay_nr),
+ unittest(0, "%s failed to create @\"%s\" %s\n",
+ overlay_name_from_nr(overlay_nr),
unittest_path(unittest_nr, ovtype),
!after ? "enabled" : "disabled");
return -EINVAL;
@@ -1363,16 +1359,16 @@ static int of_unittest_apply_revert_overlay_check(int overlay_nr,
ret = of_overlay_remove(&ovcs_id);
if (ret != 0) {
- unittest(0, "overlay @\"%s\" failed to be destroyed @\"%s\"\n",
- overlay_path(overlay_nr),
+ unittest(0, "%s failed to be destroyed @\"%s\"\n",
+ overlay_name_from_nr(overlay_nr),
unittest_path(unittest_nr, ovtype));
return ret;
}
/* unittest device must be again in before state */
if (of_unittest_device_exists(unittest_nr, PDEV_OVERLAY) != before) {
- unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
- overlay_path(overlay_nr),
+ unittest(0, "%s with device @\"%s\" %s\n",
+ overlay_name_from_nr(overlay_nr),
unittest_path(unittest_nr, ovtype),
!before ? "enabled" : "disabled");
return -EINVAL;
@@ -1382,7 +1378,7 @@ static int of_unittest_apply_revert_overlay_check(int overlay_nr,
}
/* test activation of device */
-static void of_unittest_overlay_0(void)
+static void __init of_unittest_overlay_0(void)
{
int ret;
@@ -1395,7 +1391,7 @@ static void of_unittest_overlay_0(void)
}
/* test deactivation of device */
-static void of_unittest_overlay_1(void)
+static void __init of_unittest_overlay_1(void)
{
int ret;
@@ -1408,7 +1404,7 @@ static void of_unittest_overlay_1(void)
}
/* test activation of device */
-static void of_unittest_overlay_2(void)
+static void __init of_unittest_overlay_2(void)
{
int ret;
@@ -1421,7 +1417,7 @@ static void of_unittest_overlay_2(void)
}
/* test deactivation of device */
-static void of_unittest_overlay_3(void)
+static void __init of_unittest_overlay_3(void)
{
int ret;
@@ -1434,7 +1430,7 @@ static void of_unittest_overlay_3(void)
}
/* test activation of a full device node */
-static void of_unittest_overlay_4(void)
+static void __init of_unittest_overlay_4(void)
{
int ret;
@@ -1460,19 +1456,19 @@ static void of_unittest_overlay_5(void)
}
/* test overlay application in sequence */
-static void of_unittest_overlay_6(void)
+static void __init of_unittest_overlay_6(void)
{
- struct device_node *np;
int ret, i, ov_id[2], ovcs_id;
int overlay_nr = 6, unittest_nr = 6;
int before = 0, after = 1;
+ const char *overlay_name;
/* unittest device must be in before state */
for (i = 0; i < 2; i++) {
if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY)
!= before) {
- unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
- overlay_path(overlay_nr + i),
+ unittest(0, "%s with device @\"%s\" %s\n",
+ overlay_name_from_nr(overlay_nr + i),
unittest_path(unittest_nr + i,
PDEV_OVERLAY),
!before ? "enabled" : "disabled");
@@ -1483,18 +1479,12 @@ static void of_unittest_overlay_6(void)
/* apply the overlays */
for (i = 0; i < 2; i++) {
- np = of_find_node_by_path(overlay_path(overlay_nr + i));
- if (np == NULL) {
- unittest(0, "could not find overlay node @\"%s\"\n",
- overlay_path(overlay_nr + i));
- return;
- }
+ overlay_name = overlay_name_from_nr(overlay_nr + i);
- ovcs_id = 0;
- ret = of_overlay_apply(np, &ovcs_id);
- if (ret < 0) {
- unittest(0, "could not create overlay from \"%s\"\n",
- overlay_path(overlay_nr + i));
+ ret = overlay_data_apply(overlay_name, &ovcs_id);
+ if (!ret) {
+ unittest(0, "could not apply overlay \"%s\"\n",
+ overlay_name);
return;
}
ov_id[i] = ovcs_id;
@@ -1506,7 +1496,7 @@ static void of_unittest_overlay_6(void)
if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY)
!= after) {
unittest(0, "overlay @\"%s\" failed @\"%s\" %s\n",
- overlay_path(overlay_nr + i),
+ overlay_name_from_nr(overlay_nr + i),
unittest_path(unittest_nr + i,
PDEV_OVERLAY),
!after ? "enabled" : "disabled");
@@ -1518,8 +1508,8 @@ static void of_unittest_overlay_6(void)
ovcs_id = ov_id[i];
ret = of_overlay_remove(&ovcs_id);
if (ret != 0) {
- unittest(0, "overlay @\"%s\" failed destroy @\"%s\"\n",
- overlay_path(overlay_nr + i),
+ unittest(0, "%s failed destroy @\"%s\"\n",
+ overlay_name_from_nr(overlay_nr + i),
unittest_path(unittest_nr + i,
PDEV_OVERLAY));
return;
@@ -1531,8 +1521,8 @@ static void of_unittest_overlay_6(void)
/* unittest device must be again in before state */
if (of_unittest_device_exists(unittest_nr + i, PDEV_OVERLAY)
!= before) {
- unittest(0, "overlay @\"%s\" with device @\"%s\" %s\n",
- overlay_path(overlay_nr + i),
+ unittest(0, "%s with device @\"%s\" %s\n",
+ overlay_name_from_nr(overlay_nr + i),
unittest_path(unittest_nr + i,
PDEV_OVERLAY),
!before ? "enabled" : "disabled");
@@ -1544,29 +1534,23 @@ static void of_unittest_overlay_6(void)
}
/* test overlay application in sequence */
-static void of_unittest_overlay_8(void)
+static void __init of_unittest_overlay_8(void)
{
- struct device_node *np;
int ret, i, ov_id[2], ovcs_id;
int overlay_nr = 8, unittest_nr = 8;
+ const char *overlay_name;
/* we don't care about device state in this test */
/* apply the overlays */
for (i = 0; i < 2; i++) {
- np = of_find_node_by_path(overlay_path(overlay_nr + i));
- if (np == NULL) {
- unittest(0, "could not find overlay node @\"%s\"\n",
- overlay_path(overlay_nr + i));
- return;
- }
+ overlay_name = overlay_name_from_nr(overlay_nr + i);
- ovcs_id = 0;
- ret = of_overlay_apply(np, &ovcs_id);
+ ret = overlay_data_apply(overlay_name, &ovcs_id);
if (ret < 0) {
- unittest(0, "could not create overlay from \"%s\"\n",
- overlay_path(overlay_nr + i));
+ unittest(0, "could not apply overlay \"%s\"\n",
+ overlay_name);
return;
}
ov_id[i] = ovcs_id;
@@ -1577,8 +1561,8 @@ static void of_unittest_overlay_8(void)
ovcs_id = ov_id[0];
ret = of_overlay_remove(&ovcs_id);
if (ret == 0) {
- unittest(0, "overlay @\"%s\" was destroyed @\"%s\"\n",
- overlay_path(overlay_nr + 0),
+ unittest(0, "%s was destroyed @\"%s\"\n",
+ overlay_name_from_nr(overlay_nr + 0),
unittest_path(unittest_nr,
PDEV_OVERLAY));
return;
@@ -1589,8 +1573,8 @@ static void of_unittest_overlay_8(void)
ovcs_id = ov_id[i];
ret = of_overlay_remove(&ovcs_id);
if (ret != 0) {
- unittest(0, "overlay @\"%s\" not destroyed @\"%s\"\n",
- overlay_path(overlay_nr + i),
+ unittest(0, "%s not destroyed @\"%s\"\n",
+ overlay_name_from_nr(overlay_nr + i),
unittest_path(unittest_nr,
PDEV_OVERLAY));
return;
@@ -1602,7 +1586,7 @@ static void of_unittest_overlay_8(void)
}
/* test insertion of a bus with parent devices */
-static void of_unittest_overlay_10(void)
+static void __init of_unittest_overlay_10(void)
{
int ret;
char *child_path;
@@ -1891,7 +1875,7 @@ static void of_unittest_overlay_i2c_cleanup(void)
i2c_del_driver(&unittest_i2c_dev_driver);
}
-static void of_unittest_overlay_i2c_12(void)
+static void __init of_unittest_overlay_i2c_12(void)
{
int ret;
@@ -1904,7 +1888,7 @@ static void of_unittest_overlay_i2c_12(void)
}
/* test deactivation of device */
-static void of_unittest_overlay_i2c_13(void)
+static void __init of_unittest_overlay_i2c_13(void)
{
int ret;
@@ -1921,7 +1905,7 @@ static void of_unittest_overlay_i2c_14(void)
{
}
-static void of_unittest_overlay_i2c_15(void)
+static void __init of_unittest_overlay_i2c_15(void)
{
int ret;
@@ -2023,23 +2007,38 @@ static inline void __init of_unittest_overlay(void) { }
extern uint8_t __dtb_##name##_begin[]; \
extern uint8_t __dtb_##name##_end[]
-#define OVERLAY_INFO(name, expected) \
-{ .dtb_begin = __dtb_##name##_begin, \
- .dtb_end = __dtb_##name##_end, \
- .expected_result = expected, \
+#define OVERLAY_INFO(overlay_name, expected) \
+{ .dtb_begin = __dtb_##overlay_name##_begin, \
+ .dtb_end = __dtb_##overlay_name##_end, \
+ .expected_result = expected, \
+ .name = #overlay_name, \
}
struct overlay_info {
- uint8_t *dtb_begin;
- uint8_t *dtb_end;
- void *data;
- struct device_node *np_overlay;
- int expected_result;
- int overlay_id;
+ uint8_t *dtb_begin;
+ uint8_t *dtb_end;
+ int expected_result;
+ int overlay_id;
+ char *name;
};
OVERLAY_INFO_EXTERN(overlay_base);
OVERLAY_INFO_EXTERN(overlay);
+OVERLAY_INFO_EXTERN(overlay_0);
+OVERLAY_INFO_EXTERN(overlay_1);
+OVERLAY_INFO_EXTERN(overlay_2);
+OVERLAY_INFO_EXTERN(overlay_3);
+OVERLAY_INFO_EXTERN(overlay_4);
+OVERLAY_INFO_EXTERN(overlay_5);
+OVERLAY_INFO_EXTERN(overlay_6);
+OVERLAY_INFO_EXTERN(overlay_7);
+OVERLAY_INFO_EXTERN(overlay_8);
+OVERLAY_INFO_EXTERN(overlay_9);
+OVERLAY_INFO_EXTERN(overlay_10);
+OVERLAY_INFO_EXTERN(overlay_11);
+OVERLAY_INFO_EXTERN(overlay_12);
+OVERLAY_INFO_EXTERN(overlay_13);
+OVERLAY_INFO_EXTERN(overlay_15);
OVERLAY_INFO_EXTERN(overlay_bad_phandle);
OVERLAY_INFO_EXTERN(overlay_bad_symbol);
@@ -2047,6 +2046,21 @@ struct overlay_info {
static struct overlay_info overlays[] = {
OVERLAY_INFO(overlay_base, -9999),
OVERLAY_INFO(overlay, 0),
+ OVERLAY_INFO(overlay_0, 0),
+ OVERLAY_INFO(overlay_1, 0),
+ OVERLAY_INFO(overlay_2, 0),
+ OVERLAY_INFO(overlay_3, 0),
+ OVERLAY_INFO(overlay_4, 0),
+ OVERLAY_INFO(overlay_5, 0),
+ OVERLAY_INFO(overlay_6, 0),
+ OVERLAY_INFO(overlay_7, 0),
+ OVERLAY_INFO(overlay_8, 0),
+ OVERLAY_INFO(overlay_9, 0),
+ OVERLAY_INFO(overlay_10, 0),
+ OVERLAY_INFO(overlay_11, 0),
+ OVERLAY_INFO(overlay_12, 0),
+ OVERLAY_INFO(overlay_13, 0),
+ OVERLAY_INFO(overlay_15, 0),
OVERLAY_INFO(overlay_bad_phandle, -EINVAL),
OVERLAY_INFO(overlay_bad_symbol, -EINVAL),
{}
@@ -2077,6 +2091,7 @@ void __init unittest_unflatten_overlay_base(void)
{
struct overlay_info *info;
u32 data_size;
+ void *new_fdt;
u32 size;
info = &overlays[0];
@@ -2098,17 +2113,16 @@ void __init unittest_unflatten_overlay_base(void)
return;
}
- info->data = dt_alloc_memory(size, roundup_pow_of_two(FDT_V17_SIZE));
- if (!info->data) {
+ new_fdt = dt_alloc_memory(size, roundup_pow_of_two(FDT_V17_SIZE));
+ if (!new_fdt) {
pr_err("alloc for dtb 'overlay_base' failed");
return;
}
- memcpy(info->data, info->dtb_begin, size);
+ memcpy(new_fdt, info->dtb_begin, size);
- __unflatten_device_tree(info->data, NULL, &info->np_overlay,
+ __unflatten_device_tree(new_fdt, NULL, &overlay_base_root,
dt_alloc_memory, true);
- overlay_base_root = info->np_overlay;
}
/*
@@ -2122,73 +2136,44 @@ void __init unittest_unflatten_overlay_base(void)
*
* Return 0 on unexpected error.
*/
-static int __init overlay_data_add(int onum)
+static int __init overlay_data_apply(const char *overlay_name, int *overlay_id)
{
struct overlay_info *info;
+ int found = 0;
int k;
int ret;
u32 size;
- u32 size_from_header;
- for (k = 0, info = overlays; info; info++, k++) {
- if (k == onum)
+ for (k = 0, info = overlays; info && info->name; info++, k++) {
+ if (!strcmp(overlay_name, info->name)) {
+ found = 1;
break;
+ }
}
- if (onum > k)
+ if (!found) {
+ pr_err("no overlay data for %s\n", overlay_name);
return 0;
+ }
size = info->dtb_end - info->dtb_begin;
if (!size) {
- pr_err("no overlay to attach, %d\n", onum);
+ pr_err("no overlay data for %s\n", overlay_name);
ret = 0;
}
- size_from_header = fdt_totalsize(info->dtb_begin);
- if (size_from_header != size) {
- pr_err("overlay header totalsize != actual size, %d", onum);
- return 0;
- }
-
- /*
- * Must create permanent copy of FDT because of_fdt_unflatten_tree()
- * will create pointers to the passed in FDT in the EDT.
- */
- info->data = kmemdup(info->dtb_begin, size, GFP_KERNEL);
- if (!info->data) {
- pr_err("unable to allocate memory for data, %d\n", onum);
- return 0;
- }
-
- of_fdt_unflatten_tree(info->data, NULL, &info->np_overlay);
- if (!info->np_overlay) {
- pr_err("unable to unflatten overlay, %d\n", onum);
- ret = 0;
- goto out_free_data;
- }
-
- info->overlay_id = 0;
- ret = of_overlay_apply(info->np_overlay, &info->overlay_id);
- if (ret < 0) {
- pr_err("of_overlay_apply() (ret=%d), %d\n", ret, onum);
- goto out_free_np_overlay;
- }
-
- pr_debug("__dtb_overlay_begin applied, overlay id %d\n", ret);
-
- goto out;
-
-out_free_np_overlay:
- /*
- * info->np_overlay is the unflattened device tree
- * It has not been spliced into the live tree.
- */
-
- /* todo: function to free unflattened device tree */
+ ret = of_overlay_fdt_apply(info->dtb_begin, size, &info->overlay_id);
+ if (overlay_id)
+ *overlay_id = info->overlay_id;
+ if (ret < 0)
+ goto out;
-out_free_data:
- kfree(info->data);
+ pr_debug("%s applied\n", overlay_name);
out:
+ if (ret != info->expected_result)
+ pr_err("of_overlay_fdt_apply() expected %d, ret=%d, %s\n",
+ info->expected_result, ret, overlay_name);
+
return (ret == info->expected_result);
}
@@ -2290,18 +2275,29 @@ static __init void of_unittest_overlay_high_level(void)
__of_attach_node_sysfs(np);
if (of_symbols) {
+ struct property *new_prop;
for_each_property_of_node(overlay_base_symbols, prop) {
- ret = __of_add_property(of_symbols, prop);
+
+ new_prop = __of_prop_dup(prop, GFP_KERNEL);
+ if (!new_prop) {
+ unittest(0, "__of_prop_dup() of '%s' from overlay_base node __symbols__",
+ prop->name);
+ goto err_unlock;
+ }
+ ret = __of_add_property(of_symbols, new_prop);
if (ret) {
- unittest(0,
- "duplicate property '%s' in overlay_base node __symbols__",
+ if (!strcmp(new_prop->name, "name")) {
+ /* auto-generated by unflatten */
+ ret = 0;
+ continue;
+ }
+ unittest(0, "duplicate property '%s' in overlay_base node __symbols__",
prop->name);
goto err_unlock;
}
- ret = __of_add_property_sysfs(of_symbols, prop);
+ ret = __of_add_property_sysfs(of_symbols, new_prop);
if (ret) {
- unittest(0,
- "unable to add property '%s' in overlay_base node __symbols__ to sysfs",
+ unittest(0, "unable to add property '%s' in overlay_base node __symbols__ to sysfs",
prop->name);
goto err_unlock;
}
@@ -2313,13 +2309,13 @@ static __init void of_unittest_overlay_high_level(void)
/* now do the normal overlay usage test */
- unittest(overlay_data_add(1),
+ unittest(overlay_data_apply("overlay", NULL),
"Adding overlay 'overlay' failed\n");
- unittest(overlay_data_add(2),
+ unittest(overlay_data_apply("overlay_bad_phandle", NULL),
"Adding overlay 'overlay_bad_phandle' failed\n");
- unittest(overlay_data_add(3),
+ unittest(overlay_data_apply("overlay_bad_symbol", NULL),
"Adding overlay 'overlay_bad_symbol' failed\n");
return;
diff --git a/include/linux/of.h b/include/linux/of.h
index da1ee95241c1..ebf22dd0860c 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -1359,8 +1359,8 @@ struct of_overlay_notify_data {
#ifdef CONFIG_OF_OVERLAY
-/* ID based overlays; the API for external users */
-int of_overlay_apply(struct device_node *tree, int *ovcs_id);
+int of_overlay_fdt_apply(const void *overlay_fdt, u32 overlay_fdt_size,
+ int *ovcs_id);
int of_overlay_remove(int *ovcs_id);
int of_overlay_remove_all(void);
@@ -1369,7 +1369,7 @@ struct of_overlay_notify_data {
#else
-static inline int of_overlay_apply(struct device_node *tree, int *ovcs_id)
+static inline int of_overlay_fdt_apply(void *overlay_fdt, int *ovcs_id)
{
return -ENOTSUPP;
}
--
Frank Rowand <frank.rowand@sony.com>
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v5 2/4] of: Documentation: of_overlay_apply() replaced by of_overlay_fdt_apply()
2018-03-02 1:51 [PATCH v5 0/4] of: change overlay apply input data from unflattened frowand.list
2018-03-02 1:51 ` [PATCH v5 1/4] of: change overlay apply input data from unflattened to FDT frowand.list
@ 2018-03-02 1:51 ` frowand.list
2018-03-02 1:51 ` [PATCH v5 3/4] of: convert unittest overlay devicetree source to sugar syntax frowand.list
` (2 subsequent siblings)
4 siblings, 0 replies; 8+ messages in thread
From: frowand.list @ 2018-03-02 1:51 UTC (permalink / raw)
To: Rob Herring, pantelis.antoniou, Pantelis Antoniou
Cc: devicetree, linux-kernel, geert, laurent.pinchart+renesas
From: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
---
Documentation/devicetree/overlay-notes.txt | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/overlay-notes.txt b/Documentation/devicetree/overlay-notes.txt
index c4aa0adf13ec..5175a24d387e 100644
--- a/Documentation/devicetree/overlay-notes.txt
+++ b/Documentation/devicetree/overlay-notes.txt
@@ -87,8 +87,8 @@ Overlay in-kernel API
The API is quite easy to use.
-1. Call of_overlay_apply() to create and apply an overlay changeset. The return
-value is an error or a cookie identifying this overlay.
+1. Call of_overlay_fdt_apply() to create and apply an overlay changeset. The
+return value is an error or a cookie identifying this overlay.
2. Call of_overlay_remove() to remove and cleanup the overlay changeset
previously created via the call to of_overlay_apply(). Removal of an overlay
--
Frank Rowand <frank.rowand@sony.com>
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v5 3/4] of: convert unittest overlay devicetree source to sugar syntax
2018-03-02 1:51 [PATCH v5 0/4] of: change overlay apply input data from unflattened frowand.list
2018-03-02 1:51 ` [PATCH v5 1/4] of: change overlay apply input data from unflattened to FDT frowand.list
2018-03-02 1:51 ` [PATCH v5 2/4] of: Documentation: of_overlay_apply() replaced by of_overlay_fdt_apply() frowand.list
@ 2018-03-02 1:51 ` frowand.list
2018-03-02 1:52 ` [PATCH v5 4/4] of: improve reporting invalid overlay target path frowand.list
2018-03-02 13:36 ` [PATCH v5 0/4] of: change overlay apply input data from unflattened Laurent Pinchart
4 siblings, 0 replies; 8+ messages in thread
From: frowand.list @ 2018-03-02 1:51 UTC (permalink / raw)
To: Rob Herring, pantelis.antoniou, Pantelis Antoniou
Cc: devicetree, linux-kernel, geert, laurent.pinchart+renesas
From: Frank Rowand <frank.rowand@sony.com>
The unittest-data overlays have been pulled into proper overlay
devicetree source files without changing their format. The
next step is to convert them to use sugar syntax instead of
hand coding overlay fragments structure.
A few of the overlays can not be converted because they test
absolute target paths in the overlay fragment. dtc does not
generate this type of target:
overlay_0.dts
overlay_1.dts
overlay_12.dts
overlay_13.dts
Two pre-existing unittest overlay devicetree source files are
also converted:
overlay_bad_phandle.dts
overlay_bad_symbol.dts
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
---
There are checkpatch warnings. I have reviewed them and feel they
can be ignored. They are pre-existing warnings of un-documented
bindings of made up (fake) compatibles in devicetree source for
test overlays.
drivers/of/unittest-data/overlay.dts | 101 ++++++++++-------------
drivers/of/unittest-data/overlay_10.dts | 39 ++++-----
drivers/of/unittest-data/overlay_11.dts | 40 ++++-----
drivers/of/unittest-data/overlay_15.dts | 41 ++++-----
drivers/of/unittest-data/overlay_2.dts | 11 +--
drivers/of/unittest-data/overlay_3.dts | 11 +--
drivers/of/unittest-data/overlay_4.dts | 23 ++----
drivers/of/unittest-data/overlay_5.dts | 11 +--
drivers/of/unittest-data/overlay_6.dts | 13 +--
drivers/of/unittest-data/overlay_7.dts | 13 +--
drivers/of/unittest-data/overlay_8.dts | 13 +--
drivers/of/unittest-data/overlay_9.dts | 13 +--
drivers/of/unittest-data/overlay_bad_phandle.dts | 23 ++----
drivers/of/unittest-data/overlay_bad_symbol.dts | 25 ++----
drivers/of/unittest-data/tests-overlay.dtsi | 4 +-
15 files changed, 148 insertions(+), 233 deletions(-)
diff --git a/drivers/of/unittest-data/overlay.dts b/drivers/of/unittest-data/overlay.dts
index ab5e89b5e27e..3bbc59e922fe 100644
--- a/drivers/of/unittest-data/overlay.dts
+++ b/drivers/of/unittest-data/overlay.dts
@@ -2,76 +2,63 @@
/dts-v1/;
/plugin/;
-/ {
+&electric_1 {
- fragment@0 {
- target = <&electric_1>;
+ status = "okay";
- __overlay__ {
- status = "okay";
-
- hvac_2: hvac-large-1 {
- compatible = "ot,hvac-large";
- heat-range = < 40 75 >;
- cool-range = < 65 80 >;
- };
- };
+ hvac_2: hvac-large-1 {
+ compatible = "ot,hvac-large";
+ heat-range = < 40 75 >;
+ cool-range = < 65 80 >;
};
+};
- fragment@1 {
- target = <&rides_1>;
-
- __overlay__ {
- #address-cells = <1>;
- #size-cells = <1>;
- status = "okay";
-
- ride@100 {
- #address-cells = <1>;
- #size-cells = <1>;
-
- track@30 {
- incline-up = < 48 32 16 >;
- };
+&rides_1 {
- track@40 {
- incline-up = < 47 31 15 >;
- };
- };
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "okay";
- ride_200: ride@200 {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "ot,ferris-wheel";
- reg = < 0x00000200 0x100 >;
- hvac-provider = < &hvac_2 >;
- hvac-thermostat = < 27 32 > ;
- hvac-zones = < 12 5 >;
- hvac-zone-names = "operator", "snack-bar";
- spin-controller = < &spin_ctrl_1 3 >;
- spin-rph = < 30 >;
- gondolas = < 16 >;
- gondola-capacity = < 6 >;
+ ride@100 {
+ #address-cells = <1>;
+ #size-cells = <1>;
- ride_200_left: track@10 {
- reg = < 0x00000010 0x10 >;
- };
+ track@30 {
+ incline-up = < 48 32 16 >;
+ };
- ride_200_right: track@20 {
- reg = < 0x00000020 0x10 >;
- };
- };
+ track@40 {
+ incline-up = < 47 31 15 >;
};
};
- fragment@2 {
- target = <&lights_2>;
+ ride_200: ride@200 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "ot,ferris-wheel";
+ reg = < 0x00000200 0x100 >;
+ hvac-provider = < &hvac_2 >;
+ hvac-thermostat = < 27 32 > ;
+ hvac-zones = < 12 5 >;
+ hvac-zone-names = "operator", "snack-bar";
+ spin-controller = < &spin_ctrl_1 3 >;
+ spin-rph = < 30 >;
+ gondolas = < 16 >;
+ gondola-capacity = < 6 >;
+
+ ride_200_left: track@10 {
+ reg = < 0x00000010 0x10 >;
+ };
- __overlay__ {
- status = "okay";
- color = "purple", "white", "red", "green";
- rate = < 3 256 >;
+ ride_200_right: track@20 {
+ reg = < 0x00000020 0x10 >;
};
};
+};
+
+&lights_2 {
+ status = "okay";
+ color = "purple", "white", "red", "green";
+ rate = < 3 256 >;
};
diff --git a/drivers/of/unittest-data/overlay_10.dts b/drivers/of/unittest-data/overlay_10.dts
index 445925a10cd3..73993bf23bf8 100644
--- a/drivers/of/unittest-data/overlay_10.dts
+++ b/drivers/of/unittest-data/overlay_10.dts
@@ -2,33 +2,26 @@
/dts-v1/;
/plugin/;
-/ {
- /* overlay_10 */
- /* overlays 8, 9, 10, 11 application and removal in bad sequence */
+/* overlay_10 */
+/* overlays 8, 9, 10, 11 application and removal in bad sequence */
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus";
- __overlay__ {
+&unittest_test_bus {
+ /* suppress DTC warning */
+ #address-cells = <1>;
+ #size-cells = <0>;
- /* suppress DTC warning */
- #address-cells = <1>;
- #size-cells = <0>;
+ test-unittest10 {
+ compatible = "unittest";
+ status = "okay";
+ reg = <10>;
- test-unittest10 {
- compatible = "unittest";
- status = "okay";
- reg = <10>;
+ #address-cells = <1>;
+ #size-cells = <0>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- test-unittest101 {
- compatible = "unittest";
- status = "okay";
- reg = <1>;
- };
-
- };
+ test-unittest101 {
+ compatible = "unittest";
+ status = "okay";
+ reg = <1>;
};
};
};
diff --git a/drivers/of/unittest-data/overlay_11.dts b/drivers/of/unittest-data/overlay_11.dts
index c1d14f34359e..9a79b253a809 100644
--- a/drivers/of/unittest-data/overlay_11.dts
+++ b/drivers/of/unittest-data/overlay_11.dts
@@ -2,33 +2,27 @@
/dts-v1/;
/plugin/;
-/ {
- /* overlay_11 */
- /* overlays 8, 9, 10, 11 application and removal in bad sequence */
+/* overlay_11 */
+/* overlays 8, 9, 10, 11 application and removal in bad sequence */
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus";
- __overlay__ {
+&unittest_test_bus {
+ /* suppress DTC warning */
+ #address-cells = <1>;
+ #size-cells = <0>;
- /* suppress DTC warning */
- #address-cells = <1>;
- #size-cells = <0>;
+ test-unittest11 {
+ compatible = "unittest";
+ status = "okay";
+ reg = <11>;
- test-unittest11 {
- compatible = "unittest";
- status = "okay";
- reg = <11>;
+ #address-cells = <1>;
+ #size-cells = <0>;
- #address-cells = <1>;
- #size-cells = <0>;
-
- test-unittest111 {
- compatible = "unittest";
- status = "okay";
- reg = <1>;
- };
-
- };
+ test-unittest111 {
+ compatible = "unittest";
+ status = "okay";
+ reg = <1>;
};
+
};
};
diff --git a/drivers/of/unittest-data/overlay_15.dts b/drivers/of/unittest-data/overlay_15.dts
index 44e44c62b739..b98f2514df4b 100644
--- a/drivers/of/unittest-data/overlay_15.dts
+++ b/drivers/of/unittest-data/overlay_15.dts
@@ -2,33 +2,28 @@
/dts-v1/;
/plugin/;
-/ {
- /* overlay_15 - mux overlay */
+/* overlay_15 - mux overlay */
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/i2c-test-bus";
- __overlay__ {
- #address-cells = <1>;
- #size-cells = <0>;
- test-unittest15 {
- reg = <11>;
- compatible = "unittest-i2c-mux";
- status = "okay";
+&unittest_i2c_test_bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ test-unittest15 {
+ reg = <11>;
+ compatible = "unittest-i2c-mux";
+ status = "okay";
- #address-cells = <1>;
- #size-cells = <0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
- i2c@0 {
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <0>;
+ i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
- test-mux-dev {
- reg = <32>;
- compatible = "unittest-i2c-dev";
- status = "okay";
- };
- };
+ test-mux-dev {
+ reg = <32>;
+ compatible = "unittest-i2c-dev";
+ status = "okay";
};
};
};
diff --git a/drivers/of/unittest-data/overlay_2.dts b/drivers/of/unittest-data/overlay_2.dts
index cf1e4245b7ce..db8684ba89d9 100644
--- a/drivers/of/unittest-data/overlay_2.dts
+++ b/drivers/of/unittest-data/overlay_2.dts
@@ -2,13 +2,8 @@
/dts-v1/;
/plugin/;
-/ {
- /* overlay_2 - enable using label */
+/* overlay_2 - enable using label */
- fragment@0 {
- target = <&unittest2>;
- __overlay__ {
- status = "okay";
- };
- };
+&unittest2 {
+ status = "okay";
};
diff --git a/drivers/of/unittest-data/overlay_3.dts b/drivers/of/unittest-data/overlay_3.dts
index 158dc44fc20a..40f289e7c237 100644
--- a/drivers/of/unittest-data/overlay_3.dts
+++ b/drivers/of/unittest-data/overlay_3.dts
@@ -2,13 +2,8 @@
/dts-v1/;
/plugin/;
-/ {
- /* overlay_3 - disable using label */
+/* overlay_3 - disable using label */
- fragment@0 {
- target = <&unittest3>;
- __overlay__ {
- status = "disabled";
- };
- };
+&unittest3 {
+ status = "disabled";
};
diff --git a/drivers/of/unittest-data/overlay_4.dts b/drivers/of/unittest-data/overlay_4.dts
index b4a2e6c6b016..a8a77ddf9abe 100644
--- a/drivers/of/unittest-data/overlay_4.dts
+++ b/drivers/of/unittest-data/overlay_4.dts
@@ -2,22 +2,17 @@
/dts-v1/;
/plugin/;
-/ {
- /* overlay_4 - test insertion of a full node */
+/* overlay_4 - test insertion of a full node */
- fragment@0 {
- target = <&unittestbus>;
- __overlay__ {
+&unittest_test_bus {
- /* suppress DTC warning */
- #address-cells = <1>;
- #size-cells = <0>;
+ /* suppress DTC warning */
+ #address-cells = <1>;
+ #size-cells = <0>;
- test-unittest4 {
- compatible = "unittest";
- status = "okay";
- reg = <4>;
- };
- };
+ test-unittest4 {
+ compatible = "unittest";
+ status = "okay";
+ reg = <4>;
};
};
diff --git a/drivers/of/unittest-data/overlay_5.dts b/drivers/of/unittest-data/overlay_5.dts
index 02ad25c1f19c..706f5f1b737c 100644
--- a/drivers/of/unittest-data/overlay_5.dts
+++ b/drivers/of/unittest-data/overlay_5.dts
@@ -2,13 +2,8 @@
/dts-v1/;
/plugin/;
-/ {
- /* overlay_5 - test overlay apply revert */
+/* overlay_5 - test overlay apply revert */
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/test-unittest5";
- __overlay__ {
- status = "okay";
- };
- };
+&unittest5 {
+ status = "okay";
};
diff --git a/drivers/of/unittest-data/overlay_6.dts b/drivers/of/unittest-data/overlay_6.dts
index a14e965f5497..21a7fa4ca45e 100644
--- a/drivers/of/unittest-data/overlay_6.dts
+++ b/drivers/of/unittest-data/overlay_6.dts
@@ -2,14 +2,9 @@
/dts-v1/;
/plugin/;
-/ {
- /* overlay_6 */
- /* overlays 6, 7 application and removal in sequence */
+/* overlay_6 */
+/* overlays 6, 7 application and removal in sequence */
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/test-unittest6";
- __overlay__ {
- status = "okay";
- };
- };
+&unittest6 {
+ status = "okay";
};
diff --git a/drivers/of/unittest-data/overlay_7.dts b/drivers/of/unittest-data/overlay_7.dts
index 4bd7e423209c..58ba1bb51b50 100644
--- a/drivers/of/unittest-data/overlay_7.dts
+++ b/drivers/of/unittest-data/overlay_7.dts
@@ -2,14 +2,9 @@
/dts-v1/;
/plugin/;
-/ {
- /* overlay_7 */
- /* overlays 6, 7 application and removal in sequence */
+/* overlay_7 */
+/* overlays 6, 7 application and removal in sequence */
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/test-unittest7";
- __overlay__ {
- status = "okay";
- };
- };
+&unittest7 {
+ status = "okay";
};
diff --git a/drivers/of/unittest-data/overlay_8.dts b/drivers/of/unittest-data/overlay_8.dts
index 5b21c53945a9..e9718d118e38 100644
--- a/drivers/of/unittest-data/overlay_8.dts
+++ b/drivers/of/unittest-data/overlay_8.dts
@@ -2,14 +2,9 @@
/dts-v1/;
/plugin/;
-/ {
- /* overlay_8 */
- /* overlays 8, 9, 10, 11 application and removal in bad sequence */
+/* overlay_8 */
+/* overlays 8, 9, 10, 11 application and removal in bad sequence */
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/test-unittest8";
- __overlay__ {
- status = "okay";
- };
- };
+&unittest8 {
+ status = "okay";
};
diff --git a/drivers/of/unittest-data/overlay_9.dts b/drivers/of/unittest-data/overlay_9.dts
index 20ff055a5349..b35e23edae50 100644
--- a/drivers/of/unittest-data/overlay_9.dts
+++ b/drivers/of/unittest-data/overlay_9.dts
@@ -2,14 +2,9 @@
/dts-v1/;
/plugin/;
-/ {
- /* overlay_9 */
- /* overlays 8, 9, 10, 11 application and removal in bad sequence */
+/* overlay_9 */
+/* overlays 8, 9, 10, 11 application and removal in bad sequence */
- fragment@0 {
- target-path = "/testcase-data/overlay-node/test-bus/test-unittest8";
- __overlay__ {
- property-foo = "bar";
- };
- };
+&unittest8 {
+ property-foo = "bar";
};
diff --git a/drivers/of/unittest-data/overlay_bad_phandle.dts b/drivers/of/unittest-data/overlay_bad_phandle.dts
index 4d5b99723bad..83b797360318 100644
--- a/drivers/of/unittest-data/overlay_bad_phandle.dts
+++ b/drivers/of/unittest-data/overlay_bad_phandle.dts
@@ -2,20 +2,13 @@
/dts-v1/;
/plugin/;
-/ {
-
- fragment@0 {
- target = <&electric_1>;
-
- __overlay__ {
-
- // This label should cause an error when the overlay
- // is applied. There is already a phandle value
- // in the base tree for motor-1.
- spin_ctrl_1_conflict: motor-1 {
- accelerate = < 3 >;
- decelerate = < 5 >;
- };
- };
+&electric_1 {
+
+ // This label should cause an error when the overlay
+ // is applied. There is already a phandle value
+ // in the base tree for motor-1.
+ spin_ctrl_1_conflict: motor-1 {
+ accelerate = < 3 >;
+ decelerate = < 5 >;
};
};
diff --git a/drivers/of/unittest-data/overlay_bad_symbol.dts b/drivers/of/unittest-data/overlay_bad_symbol.dts
index 135052ee1517..98c6d1de144a 100644
--- a/drivers/of/unittest-data/overlay_bad_symbol.dts
+++ b/drivers/of/unittest-data/overlay_bad_symbol.dts
@@ -2,22 +2,15 @@
/dts-v1/;
/plugin/;
-/ {
+&electric_1 {
- fragment@0 {
- target = <&electric_1>;
-
- __overlay__ {
-
- // This label should cause an error when the overlay
- // is applied. There is already a symbol hvac_1
- // in the base tree
- hvac_1: hvac-medium-2 {
- compatible = "ot,hvac-medium";
- heat-range = < 50 75 >;
- cool-range = < 60 80 >;
- };
-
- };
+ // This label should cause an error when the overlay
+ // is applied. There is already a symbol hvac_1
+ // in the base tree
+ hvac_1: hvac-medium-2 {
+ compatible = "ot,hvac-medium";
+ heat-range = < 50 75 >;
+ cool-range = < 60 80 >;
};
+
};
diff --git a/drivers/of/unittest-data/tests-overlay.dtsi b/drivers/of/unittest-data/tests-overlay.dtsi
index fa2fb43bccac..25cf397b8f6b 100644
--- a/drivers/of/unittest-data/tests-overlay.dtsi
+++ b/drivers/of/unittest-data/tests-overlay.dtsi
@@ -5,7 +5,7 @@
overlay-node {
/* test bus */
- unittestbus: test-bus {
+ unittest_test_bus: test-bus {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <0>;
@@ -70,7 +70,7 @@
reg = <8>;
};
- i2c-test-bus {
+ unittest_i2c_test_bus: i2c-test-bus {
compatible = "unittest-i2c-bus";
status = "okay";
reg = <50>;
--
Frank Rowand <frank.rowand@sony.com>
^ permalink raw reply related [flat|nested] 8+ messages in thread
* [PATCH v5 4/4] of: improve reporting invalid overlay target path
2018-03-02 1:51 [PATCH v5 0/4] of: change overlay apply input data from unflattened frowand.list
` (2 preceding siblings ...)
2018-03-02 1:51 ` [PATCH v5 3/4] of: convert unittest overlay devicetree source to sugar syntax frowand.list
@ 2018-03-02 1:52 ` frowand.list
2018-03-02 13:36 ` [PATCH v5 0/4] of: change overlay apply input data from unflattened Laurent Pinchart
4 siblings, 0 replies; 8+ messages in thread
From: frowand.list @ 2018-03-02 1:52 UTC (permalink / raw)
To: Rob Herring, pantelis.antoniou, Pantelis Antoniou
Cc: devicetree, linux-kernel, geert, laurent.pinchart+renesas
From: Frank Rowand <frank.rowand@sony.com>
Errors while developing the patch to create of_overlay_fdt_apply()
exposed inadequate error messages to debug problems when overlay
devicetree fragment nodes contain an invalid target path. Improve
the messages in find_target_node() to remedy this.
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
---
changes from v2:
- add fragment node name as suggested by Geert
- existing error message printed short node name, thus not
discriminating between fragments; change to full node name
- existing error message printed node address, which is devicetree
internal debugging, not useful in an overlay apply error message;
remove node address from message
drivers/of/overlay.c | 22 ++++++++++++++++------
1 file changed, 16 insertions(+), 6 deletions(-)
diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c
index e3d7f69a8333..b930e05d1215 100644
--- a/drivers/of/overlay.c
+++ b/drivers/of/overlay.c
@@ -488,20 +488,30 @@ static int build_changeset(struct overlay_changeset *ovcs)
*/
static struct device_node *find_target_node(struct device_node *info_node)
{
+ struct device_node *node;
const char *path;
u32 val;
int ret;
ret = of_property_read_u32(info_node, "target", &val);
- if (!ret)
- return of_find_node_by_phandle(val);
+ if (!ret) {
+ node = of_find_node_by_phandle(val);
+ if (!node)
+ pr_err("find target, node: %pOF, phandle 0x%x not found\n",
+ info_node, val);
+ return node;
+ }
ret = of_property_read_string(info_node, "target-path", &path);
- if (!ret)
- return of_find_node_by_path(path);
+ if (!ret) {
+ node = of_find_node_by_path(path);
+ if (!node)
+ pr_err("find target, node: %pOF, path '%s' not found\n",
+ info_node, path);
+ return node;
+ }
- pr_err("Failed to find target for node %p (%s)\n",
- info_node, info_node->name);
+ pr_err("find target, node: %pOF, no target property\n", info_node);
return NULL;
}
--
Frank Rowand <frank.rowand@sony.com>
^ permalink raw reply related [flat|nested] 8+ messages in thread
* Re: [PATCH v5 1/4] of: change overlay apply input data from unflattened to FDT
2018-03-02 1:51 ` [PATCH v5 1/4] of: change overlay apply input data from unflattened to FDT frowand.list
@ 2018-03-02 9:20 ` Geert Uytterhoeven
2018-03-02 17:28 ` Frank Rowand
0 siblings, 1 reply; 8+ messages in thread
From: Geert Uytterhoeven @ 2018-03-02 9:20 UTC (permalink / raw)
To: Frank Rowand
Cc: Rob Herring, Pantelis Antoniou, Pantelis Antoniou,
open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
Linux Kernel Mailing List, Laurent Pinchart
Hi Frank,
On Fri, Mar 2, 2018 at 2:51 AM, <frowand.list@gmail.com> wrote:
> There are still some functions in unittest.c that should be tagged
> __init due to changes in this patch, but modpost is not warning of
> them and they are not a risk because they are only called from
> __init functions. A sweep of unittest.c for functions that
> should be tagged __init is on the todo list.
If modpost doesn't warn, that merely means your compiler decided to
inline all functions with wrong annotations, hiding the problem.
Other (versions of) compilers may behave differently, so we do want
to get this right.
With my trusty gcc-4.1.2:
WARNING: vmlinux.o(.text+0x342dd4): Section mismatch in reference
from the function of_unittest_apply_revert_overlay_check() to the
function .init.text:of_unittest_apply_overlay()
The function of_unittest_apply_revert_overlay_check() references
the function __init of_unittest_apply_overlay().
This is often because of_unittest_apply_revert_overlay_check lacks a __init
annotation or the annotation of of_unittest_apply_overlay is wrong.
To fix the above:
-static int of_unittest_apply_revert_overlay_check(int overlay_nr,
+static int __init of_unittest_apply_revert_overlay_check(int overlay_nr,
-static void of_unittest_overlay_5(void)
+static void __init of_unittest_overlay_5(void)
-static void of_unittest_overlay_11(void)
+static void __init of_unittest_overlay_11(void)
> --- a/drivers/of/unittest.c
> +++ b/drivers/of/unittest.c
> @@ -2290,18 +2275,29 @@ static __init void of_unittest_overlay_high_level(void)
> __of_attach_node_sysfs(np);
>
> if (of_symbols) {
> + struct property *new_prop;
> for_each_property_of_node(overlay_base_symbols, prop) {
drivers/of/unittest.c: In function ‘of_unittest_overlay_high_level’:
drivers/of/unittest.c:2193: warning: ‘overlay_base_symbols’ may be
used uninitialized in this function
This isn't a new warning, so I guess I never reported it before because I
thought it was a false positive (misguided by the "if (of_symbols)" test?).
However, now I believe it is not, and an uninitialized pointer will be
dereferenced if of_root has a __symbols__ node, but overlay_base_root hasn't.
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
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v5 0/4] of: change overlay apply input data from unflattened
2018-03-02 1:51 [PATCH v5 0/4] of: change overlay apply input data from unflattened frowand.list
` (3 preceding siblings ...)
2018-03-02 1:52 ` [PATCH v5 4/4] of: improve reporting invalid overlay target path frowand.list
@ 2018-03-02 13:36 ` Laurent Pinchart
4 siblings, 0 replies; 8+ messages in thread
From: Laurent Pinchart @ 2018-03-02 13:36 UTC (permalink / raw)
To: frowand.list
Cc: Rob Herring, pantelis.antoniou, Pantelis Antoniou, devicetree,
linux-kernel, geert, laurent.pinchart+renesas
Hi Frank,
Thank you for the patches.
For the whole series,
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
On Friday, 2 March 2018 03:51:56 EET 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 devicetree now belongs to devicetree code, which is
> thus responsible for freeing the unflattened devicetree.
>
> These ownership changes prevent early freeing of the duplicated FDT
> or the unflattened devicetree, 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.
>
> Changes from v4:
> (all in patch 1/4)
> - move of_overlay_fdt_apply() prototype from of_private.h to of.h
> - of_overlay_apply(): add kfree(fdt) if resolve phandles or
> initialize changeset fail
> - of_overlay_fdt_apply(): add parameter size of overlay_fdt and use
> it for some additional validation of the overlay fdt
> - update unittest.c with additional parameter to of_overlay_fdt_apply()
>
> Changes from v3:
> - patch 1/4: OF_OVERLAY: add select OF_FLATTREE
>
> Changes from v2:
> - improve error messages in patch 4/4, as suggested by Geert
>
> Changes from v1:
> - rebase on v4.16-rc1
> - update documentation
> - split out error message to a separate patch
>
>
> Frank Rowand (4):
> of: change overlay apply input data from unflattened to FDT
> of: Documentation: of_overlay_apply() replaced by
> of_overlay_fdt_apply()
> of: convert unittest overlay devicetree source to sugar syntax
> of: improve reporting invalid overlay target path
>
> Documentation/devicetree/overlay-notes.txt | 4 +-
> drivers/of/Kconfig | 1 +
> drivers/of/overlay.c | 134 +++++++++--
> drivers/of/resolver.c | 6 -
> drivers/of/unittest-data/Makefile | 28 ++-
> 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 | 25 +-
> drivers/of/unittest-data/tests-overlay.dtsi | 217 +----------------
> drivers/of/unittest.c | 294
> +++++++++++------------ include/linux/of.h |
> 6 +-
> 26 files changed, 582 insertions(+), 483 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
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH v5 1/4] of: change overlay apply input data from unflattened to FDT
2018-03-02 9:20 ` Geert Uytterhoeven
@ 2018-03-02 17:28 ` Frank Rowand
0 siblings, 0 replies; 8+ messages in thread
From: Frank Rowand @ 2018-03-02 17:28 UTC (permalink / raw)
To: Geert Uytterhoeven, Rob Herring
Cc: Pantelis Antoniou, Pantelis Antoniou,
open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
Linux Kernel Mailing List, Laurent Pinchart
On 03/02/18 01:20, Geert Uytterhoeven wrote:
> Hi Frank,
>
> On Fri, Mar 2, 2018 at 2:51 AM, <frowand.list@gmail.com> wrote:
>> There are still some functions in unittest.c that should be tagged
>> __init due to changes in this patch, but modpost is not warning of
>> them and they are not a risk because they are only called from
>> __init functions. A sweep of unittest.c for functions that
>> should be tagged __init is on the todo list.
>
> If modpost doesn't warn, that merely means your compiler decided to
> inline all functions with wrong annotations, hiding the problem.
> Other (versions of) compilers may behave differently, so we do want
> to get this right.
>
> With my trusty gcc-4.1.2:
>
> WARNING: vmlinux.o(.text+0x342dd4): Section mismatch in reference
> from the function of_unittest_apply_revert_overlay_check() to the
> function .init.text:of_unittest_apply_overlay()
> The function of_unittest_apply_revert_overlay_check() references
> the function __init of_unittest_apply_overlay().
> This is often because of_unittest_apply_revert_overlay_check lacks a __init
> annotation or the annotation of of_unittest_apply_overlay is wrong.
>
> To fix the above:
>
> -static int of_unittest_apply_revert_overlay_check(int overlay_nr,
> +static int __init of_unittest_apply_revert_overlay_check(int overlay_nr,
> -static void of_unittest_overlay_5(void)
> +static void __init of_unittest_overlay_5(void)
> -static void of_unittest_overlay_11(void)
> +static void __init of_unittest_overlay_11(void)
Yes, that is exactly the extra set of functions I was talking about. Even
though I would prefer to annotate them, in practice they will not be a
problem because they only get called from __init functions (either directly
or indirectly). But if Rob will take a patch with them annotated, I will
spin the series.
>> --- a/drivers/of/unittest.c
>> +++ b/drivers/of/unittest.c
>
>> @@ -2290,18 +2275,29 @@ static __init void of_unittest_overlay_high_level(void)
>> __of_attach_node_sysfs(np);
>>
>> if (of_symbols) {
>> + struct property *new_prop;
>> for_each_property_of_node(overlay_base_symbols, prop) {
>
> drivers/of/unittest.c: In function ‘of_unittest_overlay_high_level’:
> drivers/of/unittest.c:2193: warning: ‘overlay_base_symbols’ may be
> used uninitialized in this function
>
> This isn't a new warning, so I guess I never reported it before because I
> thought it was a false positive (misguided by the "if (of_symbols)" test?).
>
> However, now I believe it is not, and an uninitialized pointer will be
> dereferenced if of_root has a __symbols__ node, but overlay_base_root hasn't.
Yes, thanks for reporting it. My gcc isn't this smart.
Fortunately overlay_base_root does have a __symbols__ node. But I will fix it
in a patch outside this series.
>
> 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
>
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2018-03-02 17:28 UTC | newest]
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2018-03-02 1:51 [PATCH v5 0/4] of: change overlay apply input data from unflattened frowand.list
2018-03-02 1:51 ` [PATCH v5 1/4] of: change overlay apply input data from unflattened to FDT frowand.list
2018-03-02 9:20 ` Geert Uytterhoeven
2018-03-02 17:28 ` Frank Rowand
2018-03-02 1:51 ` [PATCH v5 2/4] of: Documentation: of_overlay_apply() replaced by of_overlay_fdt_apply() frowand.list
2018-03-02 1:51 ` [PATCH v5 3/4] of: convert unittest overlay devicetree source to sugar syntax frowand.list
2018-03-02 1:52 ` [PATCH v5 4/4] of: improve reporting invalid overlay target path frowand.list
2018-03-02 13:36 ` [PATCH v5 0/4] of: change overlay apply input data from unflattened Laurent Pinchart
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