[PATCH] lib/interval_tree: fix allocation warning messages

WARN_ON_ONCE() takes a condition, not a message. The string literals
are always true, so the warnings still trigger but the messages are
never printed.

Use WARN_ONCE(1, ...) instead to print the messages and keep the
once-only behavior.

Found with a Coccinelle script. Clang's -Wstring-conversion also flags
such calls but is not enabled in kernel builds.

Fixes: 82114e45131f ("lib/interval_tree: add test case for interval_tree_iter_xxx() helpers")
Assisted-by: Claude:claude-fable-5 coccinelle
Signed-off-by: Karl Mehltretter <[email protected]>
---
 lib/interval_tree_test.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/interval_tree_test.c b/lib/interval_tree_test.c
index eba2d3e28980..b0b07270ce7c 100644
--- a/lib/interval_tree_test.c
+++ b/lib/interval_tree_test.c
@@ -140,13 +140,13 @@ static int intersection_range_check(void)
 
 	intxn1 = bitmap_alloc(nnodes, GFP_KERNEL);
 	if (!intxn1) {
-		WARN_ON_ONCE("Failed to allocate intxn1\n");
+		WARN_ONCE(1, "Failed to allocate intxn1\n");
 		return -ENOMEM;
 	}
 
 	intxn2 = bitmap_alloc(nnodes, GFP_KERNEL);
 	if (!intxn2) {
-		WARN_ON_ONCE("Failed to allocate intxn2\n");
+		WARN_ONCE(1, "Failed to allocate intxn2\n");
 		bitmap_free(intxn1);
 		return -ENOMEM;
 	}
-- 
2.39.5 (Apple Git-154)