[PATCH v4.1 12/63] interval_tree: Fix ITSTATIC usage for *_subtree_search()

From: Josh Poimboeuf

Date: Thu Sep 18 2025 - 12:30:05 EST


For consistency with the other function templates, change
_subtree_search_*() to use the user-supplied ITSTATIC rather than the
hard-coded 'static'.

Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
---
v4.1: Fixed a couple more INTERVAL_TREE_DEFINE usages.

drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.h | 4 ++++
include/linux/interval_tree.h | 4 ++++
include/linux/interval_tree_generic.h | 2 +-
include/linux/mm.h | 2 ++
lib/interval_tree.c | 1 +
tools/include/linux/interval_tree_generic.h | 2 +-
6 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.h b/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.h
index 1d7fc3226bcad..cfb42a8f5768b 100644
--- a/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.h
+++ b/drivers/infiniband/hw/usnic/usnic_uiom_interval_tree.h
@@ -53,6 +53,10 @@ extern void
usnic_uiom_interval_tree_remove(struct usnic_uiom_interval_node *node,
struct rb_root_cached *root);
extern struct usnic_uiom_interval_node *
+usnic_uiom_interval_tree_subtree_search(struct usnic_uiom_interval_node *node,
+ unsigned long start,
+ unsigned long last);
+extern struct usnic_uiom_interval_node *
usnic_uiom_interval_tree_iter_first(struct rb_root_cached *root,
unsigned long start,
unsigned long last);
diff --git a/include/linux/interval_tree.h b/include/linux/interval_tree.h
index 2b8026a399064..9d5791e9f737a 100644
--- a/include/linux/interval_tree.h
+++ b/include/linux/interval_tree.h
@@ -19,6 +19,10 @@ extern void
interval_tree_remove(struct interval_tree_node *node,
struct rb_root_cached *root);

+extern struct interval_tree_node *
+interval_tree_subtree_search(struct interval_tree_node *node,
+ unsigned long start, unsigned long last);
+
extern struct interval_tree_node *
interval_tree_iter_first(struct rb_root_cached *root,
unsigned long start, unsigned long last);
diff --git a/include/linux/interval_tree_generic.h b/include/linux/interval_tree_generic.h
index 1b400f26f63d6..c5a2fed49eb0d 100644
--- a/include/linux/interval_tree_generic.h
+++ b/include/linux/interval_tree_generic.h
@@ -77,7 +77,7 @@ ITSTATIC void ITPREFIX ## _remove(ITSTRUCT *node, \
* Cond2: start <= ITLAST(node) \
*/ \
\
-static ITSTRUCT * \
+ITSTATIC ITSTRUCT * \
ITPREFIX ## _subtree_search(ITSTRUCT *node, ITTYPE start, ITTYPE last) \
{ \
while (true) { \
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1ae97a0b8ec75..69baa9a1e2cb4 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -3265,6 +3265,8 @@ void vma_interval_tree_insert_after(struct vm_area_struct *node,
struct rb_root_cached *root);
void vma_interval_tree_remove(struct vm_area_struct *node,
struct rb_root_cached *root);
+struct vm_area_struct *vma_interval_tree_subtree_search(struct vm_area_struct *node,
+ unsigned long start, unsigned long last);
struct vm_area_struct *vma_interval_tree_iter_first(struct rb_root_cached *root,
unsigned long start, unsigned long last);
struct vm_area_struct *vma_interval_tree_iter_next(struct vm_area_struct *node,
diff --git a/lib/interval_tree.c b/lib/interval_tree.c
index 324766e9bf637..9ceb084b6b4ef 100644
--- a/lib/interval_tree.c
+++ b/lib/interval_tree.c
@@ -13,6 +13,7 @@ INTERVAL_TREE_DEFINE(struct interval_tree_node, rb,

EXPORT_SYMBOL_GPL(interval_tree_insert);
EXPORT_SYMBOL_GPL(interval_tree_remove);
+EXPORT_SYMBOL_GPL(interval_tree_subtree_search);
EXPORT_SYMBOL_GPL(interval_tree_iter_first);
EXPORT_SYMBOL_GPL(interval_tree_iter_next);

diff --git a/tools/include/linux/interval_tree_generic.h b/tools/include/linux/interval_tree_generic.h
index 1b400f26f63d6..c5a2fed49eb0d 100644
--- a/tools/include/linux/interval_tree_generic.h
+++ b/tools/include/linux/interval_tree_generic.h
@@ -77,7 +77,7 @@ ITSTATIC void ITPREFIX ## _remove(ITSTRUCT *node, \
* Cond2: start <= ITLAST(node) \
*/ \
\
-static ITSTRUCT * \
+ITSTATIC ITSTRUCT * \
ITPREFIX ## _subtree_search(ITSTRUCT *node, ITTYPE start, ITTYPE last) \
{ \
while (true) { \
--
2.50.0