libpdbg: Make dt_root private

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Reviewed-by: Amitay Isaacs <amitay@ozlabs.org>

4 files changed, 12 insertions, 14 deletions

diff --git a/libpdbg/device.c b/libpdbg/device.c
index 7e8af35..4a9d39a 100644
--- a/libpdbg/device.c
+++ b/libpdbg/device.c
@@ -36,7 +36,7 @@
 /* Used to give unique handles. */
 static u32 last_phandle = 0;
 
-struct pdbg_target *dt_root;
+static struct pdbg_target *pdbg_dt_root;
 
 /*
  * An in-memory representation of a node in the device tree.
@@ -591,7 +591,7 @@ static void dt_expand(const void *fdt)
 {
 	PR_DEBUG("FDT: Parsing fdt @%p\n", fdt);
 
-	if (dt_expand_node(dt_root, fdt, 0) < 0)
+	if (dt_expand_node(pdbg_dt_root, fdt, 0) < 0)
 		abort();
 }
 
@@ -637,7 +637,7 @@ uint64_t pdbg_target_address(struct pdbg_target *target, uint64_t *out_size)
 
 void pdbg_targets_init(void *fdt)
 {
-	dt_root = dt_new_node("", NULL, 0);
+	pdbg_dt_root = dt_new_node("", NULL, 0);
 	dt_expand(fdt);
 }
 
@@ -649,7 +649,12 @@ char *pdbg_target_path(const struct pdbg_target *target)
 struct pdbg_target *pdbg_target_from_path(struct pdbg_target *target, const char *path)
 {
 	if (!target)
-		target = dt_root;
+		target = pdbg_dt_root;
 
 	return dt_find_by_path(target, path);
 }
+
+struct pdbg_target *pdbg_target_root(void)
+{
+	return pdbg_dt_root;
+}
diff --git a/libpdbg/device.h b/libpdbg/device.h
index 92d7da3..4a4a06f 100644
--- a/libpdbg/device.h
+++ b/libpdbg/device.h
@@ -23,6 +23,4 @@
 /* Any property or node with this prefix will not be passed to the kernel. */
 #define DT_PRIVATE	"skiboot,"
 
-extern struct pdbg_target *dt_root;
-
 #endif /* __DEVICE_H */
diff --git a/libpdbg/target.c b/libpdbg/target.c
index 5599d78..5ebe71d 100644
--- a/libpdbg/target.c
+++ b/libpdbg/target.c
@@ -31,7 +31,7 @@ static struct pdbg_target *get_class_target_addr(struct pdbg_target *target, con
 
 		/* The root node doesn't have an address space so it's
 		 * an error in the device tree if we hit this. */
-		assert(target != dt_root);
+		assert(target != pdbg_target_root());
 	}
 
 	return target;
@@ -365,7 +365,7 @@ void pdbg_target_probe_all(struct pdbg_target *parent)
 	struct pdbg_target *child;
 
 	if (!parent)
-		parent = dt_root;
+		parent = pdbg_target_root();
 
 	pdbg_for_each_child_target(parent, child) {
 		pdbg_target_probe_all(child);
@@ -389,8 +389,3 @@ void pdbg_target_priv_set(struct pdbg_target *target, void *priv)
 {
 	target->priv = priv;
 }
-
-struct pdbg_target *pdbg_target_root(void)
-{
-	return dt_root;
-}
diff --git a/src/main.c b/src/main.c
index 40fa48b..5d0c0e3 100644
--- a/src/main.c
+++ b/src/main.c
@@ -791,7 +791,7 @@ OPTCMD_DEFINE_CMD(probe, probe);
  */
 static void atexit_release(void)
 {
-	pdbg_target_release(dt_root);
+	pdbg_target_release(pdbg_target_root());
 }
 
 int main(int argc, char *argv[])