linux-kernel - Re: [PATCH v1 1/1] mapple_tree: Fix build error (`make W=1`)

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Message-ID: <6nk7wvp2vbsc5myxnx4mfohpq4yk4ixazkvif4hntilpuz7jtw@a2q2if4nc7kn>
Date: Thu, 4 Sep 2025 09:32:52 -0400
From: "Liam R. Howlett" <Liam.Howlett@...cle.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org,
        maple-tree@...ts.infradead.org, linux-mm@...ck.org,
        llvm@...ts.linux.dev, Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <nick.desaulniers+lkml@...il.com>,
        Bill Wendling <morbo@...gle.com>,
        Justin Stitt <justinstitt@...gle.com>
Subject: Re: [PATCH v1 1/1] mapple_tree: Fix build error (`make W=1`)

* Andy Shevchenko <andriy.shevchenko@...ux.intel.com> [250904 05:04]:
> clang complains about unused function:
> 
> lib/maple_tree.c:179:19: error: unused function 'mt_alloc_bulk' [-Werror,-Wunused-function]
> 
> Fix this by removing unused code.
> 
> Fixes: a48d52b2d21b ("maple_tree: Convert forking to use the sheaf interface")
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

Thanks.  This should be squashed into the patch listed in the fixes tag
since it's not a stable commit yet.

> ---
>  lib/maple_tree.c | 5 -----
>  1 file changed, 5 deletions(-)
> 
> diff --git a/lib/maple_tree.c b/lib/maple_tree.c
> index fce329d6c1b2..ca8b3c2e0362 100644
> --- a/lib/maple_tree.c
> +++ b/lib/maple_tree.c
> @@ -176,11 +176,6 @@ static inline struct maple_node *mt_alloc_one(gfp_t gfp)
>  	return kmem_cache_alloc(maple_node_cache, gfp);
>  }
>  
> -static inline int mt_alloc_bulk(gfp_t gfp, size_t size, void **nodes)
> -{
> -	return kmem_cache_alloc_bulk(maple_node_cache, gfp, size, nodes);
> -}
> -
>  static inline void mt_free_bulk(size_t size, void __rcu **nodes)
>  {
>  	kmem_cache_free_bulk(maple_node_cache, size, (void **)nodes);
> -- 
> 2.50.1
>