linux-kernel - Re: [PATCH] maple_tree: Fix build failure with W=1 and LLVM=1

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Message-ID: <ZjTWkM9hTnoIhzqV@casper.infradead.org>
Date: Fri, 3 May 2024 13:20:32 +0100
From: Matthew Wilcox <willy@...radead.org>
To: Kuan-Wei Chiu <visitorckw@...il.com>
Cc: akpm@...ux-foundation.org, Liam.Howlett@...cle.com, nathan@...nel.org,
	ndesaulniers@...gle.com, morbo@...gle.com, justinstitt@...gle.com,
	linux-kernel@...r.kernel.org, maple-tree@...ts.infradead.org,
	linux-mm@...ck.org, llvm@...ts.linux.dev, jserv@...s.ncku.edu.tw
Subject: Re: [PATCH] maple_tree: Fix build failure with W=1 and LLVM=1

On Fri, May 03, 2024 at 05:50:27PM +0800, Kuan-Wei Chiu wrote:
> When compiling library code using "make W=1 LLVM=1 lib/", clang
> generated the following compilation errors:
> 
> lib/maple_tree.c:351:21: error: unused function 'mte_set_full' [-Werror,-Wunused-function]
> static inline void *mte_set_full(const struct maple_enode *node)

Uh, clang is wrong to flag these as an error.  They're just not used
yet.