Messages in this thread Patch in this message | | | From | Rong Tao <> | Subject | [PATCH] radix tree test suite: Fix uninitialized variable compilation warning | Date | Wed, 9 Nov 2022 22:34:25 +0800 |
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From: Rong Tao <rongtao@cestc.cn>
We need to set an initial value for offset to eliminate compilation warning.
How to reproduce warning:
$ make -C tools/testing/radix-tree radix-tree.c: In function ‘radix_tree_tag_clear’: radix-tree.c:1046:17: warning: ‘offset’ may be used uninitialized in this function [-Wmaybe-uninitialized] 1046 | node_tag_clear(root, parent, tag, offset); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Rong Tao <rongtao@cestc.cn> --- lib/radix-tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/radix-tree.c b/lib/radix-tree.c index 3c78e1e8b2ad..049ba132f7ef 100644 --- a/lib/radix-tree.c +++ b/lib/radix-tree.c @@ -1029,7 +1029,7 @@ void *radix_tree_tag_clear(struct radix_tree_root *root, { struct radix_tree_node *node, *parent; unsigned long maxindex; - int offset; + int offset = 0; radix_tree_load_root(root, &node, &maxindex); if (index > maxindex) -- 2.31.1
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