linux-kernel - [PATCH] maple_tree: Remove unused function

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Date:   Fri, 27 Oct 2023 16:49:44 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     Liam.Howlett@...cle.com
Cc:     maple-tree@...ts.infradead.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>,
        Abaci Robot <abaci@...ux.alibaba.com>
Subject: [PATCH] maple_tree: Remove unused function

The function are defined in the maple_tree.c file, but not called
elsewhere, so delete the unused function.

lib/maple_tree.c:689:29: warning: unused function 'mas_pivot'.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7064
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
---
 lib/maple_tree.c | 29 -----------------------------
 1 file changed, 29 deletions(-)

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index bb24d84a4922..cf889aaa0011 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -679,35 +679,6 @@ static inline unsigned long *ma_gaps(struct maple_node *node,
 	return NULL;
 }
 
-/*
- * mas_pivot() - Get the pivot at @piv of the maple encoded node.
- * @mas: The maple state.
- * @piv: The pivot.
- *
- * Return: the pivot at @piv of @mn.
- */
-static inline unsigned long mas_pivot(struct ma_state *mas, unsigned char piv)
-{
-	struct maple_node *node = mas_mn(mas);
-	enum maple_type type = mte_node_type(mas->node);
-
-	if (MAS_WARN_ON(mas, piv >= mt_pivots[type])) {
-		mas_set_err(mas, -EIO);
-		return 0;
-	}
-
-	switch (type) {
-	case maple_arange_64:
-		return node->ma64.pivot[piv];
-	case maple_range_64:
-	case maple_leaf_64:
-		return node->mr64.pivot[piv];
-	case maple_dense:
-		return 0;
-	}
-	return 0;
-}
-
 /*
  * mas_safe_pivot() - get the pivot at @piv or mas->max.
  * @mas: The maple state
-- 
2.20.1.7.g153144c