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* [PATCH] maple_tree: remove unused maple_tree functions
@ 2023-03-19 13:29 Tom Rix
  2023-03-19 19:42 ` Matthew Wilcox
  0 siblings, 1 reply; 2+ messages in thread
From: Tom Rix @ 2023-03-19 13:29 UTC (permalink / raw)
  To: Liam.Howlett, nathan, ndesaulniers; +Cc: linux-mm, linux-kernel, llvm, Tom Rix

clang with W=1 reports
lib/maple_tree.c:331:21: error: unused function
  'mte_set_full' [-Werror,-Wunused-function]
static inline void *mte_set_full(const struct maple_enode *node)
                    ^
lib/maple_tree.c:336:21: error: unused function
  'mte_clear_full' [-Werror,-Wunused-function]
static inline void *mte_clear_full(const struct maple_enode *node)
                    ^
lib/maple_tree.c:341:20: error: unused function
  'mte_has_null' [-Werror,-Wunused-function]
static inline bool mte_has_null(const struct maple_enode *node)
                   ^
These static functions are not used, so remove them.

Signed-off-by: Tom Rix <trix@redhat.com>
---
 lib/maple_tree.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/lib/maple_tree.c b/lib/maple_tree.c
index 556ca46a9b44..e407f29ef91a 100644
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -328,21 +328,6 @@ static inline void *mte_safe_root(const struct maple_enode *node)
 	return (void *)((unsigned long)node & ~MAPLE_ROOT_NODE);
 }
 
-static inline void *mte_set_full(const struct maple_enode *node)
-{
-	return (void *)((unsigned long)node & ~MAPLE_ENODE_NULL);
-}
-
-static inline void *mte_clear_full(const struct maple_enode *node)
-{
-	return (void *)((unsigned long)node | MAPLE_ENODE_NULL);
-}
-
-static inline bool mte_has_null(const struct maple_enode *node)
-{
-	return (unsigned long)node & MAPLE_ENODE_NULL;
-}
-
 static inline bool ma_is_root(struct maple_node *node)
 {
 	return ((unsigned long)node->parent & MA_ROOT_PARENT);
-- 
2.27.0



^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] maple_tree: remove unused maple_tree functions
  2023-03-19 13:29 [PATCH] maple_tree: remove unused maple_tree functions Tom Rix
@ 2023-03-19 19:42 ` Matthew Wilcox
  0 siblings, 0 replies; 2+ messages in thread
From: Matthew Wilcox @ 2023-03-19 19:42 UTC (permalink / raw)
  To: Tom Rix; +Cc: Liam.Howlett, nathan, ndesaulniers, linux-mm, linux-kernel, llvm

On Sun, Mar 19, 2023 at 09:29:03AM -0400, Tom Rix wrote:
> clang with W=1 reports
> lib/maple_tree.c:331:21: error: unused function
>   'mte_set_full' [-Werror,-Wunused-function]
> static inline void *mte_set_full(const struct maple_enode *node)
>                     ^
> lib/maple_tree.c:336:21: error: unused function
>   'mte_clear_full' [-Werror,-Wunused-function]
> static inline void *mte_clear_full(const struct maple_enode *node)
>                     ^
> lib/maple_tree.c:341:20: error: unused function
>   'mte_has_null' [-Werror,-Wunused-function]
> static inline bool mte_has_null(const struct maple_enode *node)
>                    ^
> These static functions are not used, so remove them.

No.  They're just not used yet.  NACK.


^ permalink raw reply	[flat|nested] 2+ messages in thread

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