Removes OF_UNITTEST dependency on OF_DYNAMIC config symbol
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>
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@ -10,7 +10,6 @@ menu "Device Tree and Open Firmware support"
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config OF_UNITTEST
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bool "Device Tree runtime unit tests"
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depends on OF_IRQ && OF_EARLY_FLATTREE
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select OF_DYNAMIC
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select OF_RESOLVE
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help
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This option builds in test cases for the device tree infrastructure
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@ -822,6 +822,7 @@ static void update_node_properties(struct device_node *np,
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static int attach_node_and_children(struct device_node *np)
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{
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struct device_node *next, *dup, *child;
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unsigned long flags;
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dup = of_find_node_by_path(np->full_name);
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if (dup) {
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@ -838,8 +839,17 @@ static int attach_node_and_children(struct device_node *np)
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child = np->child;
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np->child = NULL;
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np->sibling = NULL;
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of_attach_node(np);
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mutex_lock(&of_mutex);
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raw_spin_lock_irqsave(&devtree_lock, flags);
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np->sibling = np->parent->child;
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np->parent->child = np;
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of_node_clear_flag(np, OF_DETACHED);
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raw_spin_unlock_irqrestore(&devtree_lock, flags);
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__of_attach_node_sysfs(np);
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mutex_unlock(&of_mutex);
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while (child) {
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next = child->sibling;
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attach_node_and_children(child);
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@ -911,59 +921,6 @@ static int __init selftest_data_add(void)
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return 0;
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}
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/**
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* detach_node_and_children - detaches node
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* and its children from live tree
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*
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* @np: Node to detach from live tree
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*/
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static void detach_node_and_children(struct device_node *np)
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{
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while (np->child)
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detach_node_and_children(np->child);
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of_detach_node(np);
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}
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/**
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* selftest_data_remove - removes the selftest data
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* nodes from the live tree
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*/
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static void selftest_data_remove(void)
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{
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struct device_node *np;
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struct property *prop;
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if (selftest_live_tree) {
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of_node_put(of_aliases);
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of_node_put(of_chosen);
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of_aliases = NULL;
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of_chosen = NULL;
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for_each_child_of_node(of_root, np)
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detach_node_and_children(np);
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__of_detach_node_sysfs(of_root);
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of_root = NULL;
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return;
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}
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while (last_node_index-- > 0) {
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if (nodes[last_node_index]) {
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np = of_find_node_by_path(nodes[last_node_index]->full_name);
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if (np == nodes[last_node_index]) {
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if (of_aliases == np) {
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of_node_put(of_aliases);
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of_aliases = NULL;
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}
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detach_node_and_children(np);
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} else {
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for_each_property_of_node(np, prop) {
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if (strcmp(prop->name, "testcase-alias") == 0)
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of_remove_property(np, prop);
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}
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}
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}
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}
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}
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#ifdef CONFIG_OF_OVERLAY
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static int selftest_probe(struct platform_device *pdev)
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@ -1475,9 +1432,6 @@ static int __init of_selftest(void)
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of_selftest_platform_populate();
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of_selftest_overlay();
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/* removing selftest data from live tree */
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selftest_data_remove();
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/* Double check linkage after removing testcase data */
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of_selftest_check_tree_linkage();
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