[PATCH] maple_tree: Fix build failure with W=1 and LLVM=1

[Matthew Wilcox]

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.