Re: [PATCH v1 1/1] maple_tree: Drop unused functions to fix the build
From: Liam R. Howlett
Date: Fri Sep 06 2024 - 16:06:20 EST
* Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> [240906 11:43]:
> On Fri, Sep 06, 2024 at 11:26:26AM -0400, Liam R. Howlett wrote:
> > This exists to stop people from using the bits while the feature is in
> > active development. We had the same patch a few days (weeks?) ago.
>
> This breaks build. Can you propose better solution, please?
Can you please provide the config file and clang version that fails on
this error?
Thanks,
Liam
>
> > * Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> [240906 11:05]:
> > > A few functions defined but not used. This, in particular,
> > > prevents kernel builds with clang, `make W=1` and CONFIG_WERROR=y:
> > >
> > > lib/maple_tree.c:351:21: error: unused function 'mte_set_full' [-Werror,-Wunused-function]
> > > 351 | static inline void *mte_set_full(const struct maple_enode *node)
> > > | ^~~~~~~~~~~~
> > > lib/maple_tree.c:356:21: error: unused function 'mte_clear_full' [-Werror,-Wunused-function]
> > > 356 | static inline void *mte_clear_full(const struct maple_enode *node)
> > > | ^~~~~~~~~~~~~~
> > > lib/maple_tree.c:361:20: error: unused function 'mte_has_null' [-Werror,-Wunused-function]
> > > 361 | static inline bool mte_has_null(const struct maple_enode *node)
> > > | ^~~~~~~~~~~~
> > >
> > > Fix this by dropping unused functions.
> > >
> > > See also commit 6863f5643dd7 ("kbuild: allow Clang to find unused static
> > > inline functions for W=1 build").
> > >
> > > Fixes: 6e7ba8b5e238 ("maple_tree: mte_set_full() and mte_clear_full() clang-analyzer clean up")
> > > Fixes: 54a611b60590 ("Maple Tree: add new data structure")
>
> --
> With Best Regards,
> Andy Shevchenko
>
>