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Removes OF_UNITTEST dependency on OF_DYNAMIC config symbol

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This patch intends to remove the unittests dependency on
the functions defined in dynamic.c. So, rather than calling
of_attach_node defined in dynamic.c, minimal functionality
required to attach a new node is re-defined in unittest.c.
Also, now after executing the tests the test data is not
removed from the device tree so there is no need to call
of_detach_node.

Tested with and without OF_DYNAMIC enabled on ppc, arm and
x86

Signed-off-by: Gaurav Minocha <gaurav.minocha.os@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Gaurav Minocha 2015-01-10 23:19:51 -08:00 • committed by Rob Herring
commit 3ce04b4a9f
2 changed files with 12 additions and 59 deletions
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1
drivers/of/Kconfig
View file

@ -10,7 +10,6 @@ menu "Device Tree and Open Firmware support"
config OF_UNITTEST
bool "Device Tree runtime unit tests"
depends on OF_IRQ && OF_EARLY_FLATTREE
select OF_DYNAMIC
select OF_RESOLVE
help
This option builds in test cases for the device tree infrastructure

70
drivers/of/unittest.c
View file

@ -822,6 +822,7 @@ static void update_node_properties(struct device_node *np,
static int attach_node_and_children(struct device_node *np)
{
struct device_node *next, *dup, *child;
unsigned long flags;
dup = of_find_node_by_path(np->full_name);
if (dup) {
@ -838,8 +839,17 @@ static int attach_node_and_children(struct device_node *np)
child = np->child;
np->child = NULL;
np->sibling = NULL;
of_attach_node(np);
mutex_lock(&of_mutex);
raw_spin_lock_irqsave(&devtree_lock, flags);
np->sibling = np->parent->child;
np->parent->child = np;
of_node_clear_flag(np, OF_DETACHED);
raw_spin_unlock_irqrestore(&devtree_lock, flags);
__of_attach_node_sysfs(np);
mutex_unlock(&of_mutex);
while (child) {
next = child->sibling;
attach_node_and_children(child);
@ -911,59 +921,6 @@ static int __init selftest_data_add(void)
return 0;
}
/**
* detach_node_and_children - detaches node
* and its children from live tree
*
* @np: Node to detach from live tree
*/
static void detach_node_and_children(struct device_node *np)
{
while (np->child)
detach_node_and_children(np->child);
of_detach_node(np);
}
/**
* selftest_data_remove - removes the selftest data
* nodes from the live tree
*/
static void selftest_data_remove(void)
{
struct device_node *np;
struct property *prop;
if (selftest_live_tree) {
of_node_put(of_aliases);
of_node_put(of_chosen);
of_aliases = NULL;
of_chosen = NULL;
for_each_child_of_node(of_root, np)
detach_node_and_children(np);
__of_detach_node_sysfs(of_root);
of_root = NULL;
return;
}
while (last_node_index-- > 0) {
if (nodes[last_node_index]) {
np = of_find_node_by_path(nodes[last_node_index]->full_name);
if (np == nodes[last_node_index]) {
if (of_aliases == np) {
of_node_put(of_aliases);
of_aliases = NULL;
}
detach_node_and_children(np);
} else {
for_each_property_of_node(np, prop) {
if (strcmp(prop->name, "testcase-alias") == 0)
of_remove_property(np, prop);
}
}
}
}
}
#ifdef CONFIG_OF_OVERLAY
static int selftest_probe(struct platform_device *pdev)
@ -1475,9 +1432,6 @@ static int __init of_selftest(void)
of_selftest_platform_populate();
of_selftest_overlay();
/* removing selftest data from live tree */
selftest_data_remove();
/* Double check linkage after removing testcase data */
of_selftest_check_tree_linkage();