[dm-devel] PROBLEM: 5.9.0-rc6 fails to compile due to 'redefinition of ‘dax_supported’'

[Naresh Kamboju]

On Mon, 21 Sep 2020 at 06:34, Stuart Little <achirvasub at gmail.com> wrote:
>
> I am trying to compile for an x86_64 machine (Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz). The config file I am currently using is at
>
> https://termbin.com/xin7
>
> The build for 5.9.0-rc6 fails with the following errors:
>

arm and mips allmodconfig build breaks due to this error.

>
> drivers/dax/super.c:325:6: error: redefinition of ‘dax_supported’
>   325 | bool dax_supported(struct dax_device *dax_dev, struct block_device *bdev,
>       |      ^~~~~~~~~~~~~
> In file included from drivers/dax/super.c:16:
> ./include/linux/dax.h:162:20: note: previous definition of ‘dax_supported’ was here
>   162 | static inline bool dax_supported(struct dax_device *dax_dev,
>       |                    ^~~~~~~~~~~~~
>   CC      lib/memregion.o
>   CC [M]  drivers/gpu/drm/drm_gem_vram_helper.o
> make[2]: *** [scripts/Makefile.build:283: drivers/dax/super.o] Error 1
> make[1]: *** [scripts/Makefile.build:500: drivers/dax] Error 2
> make[1]: *** Waiting for unfinished jobs....
>
> --- end ---
>
> That's earlier on, and then later, at the end of the (failed) build:
>
> make: *** [Makefile:1784: drivers] Error 2
>
> The full build log is at
>
> https://termbin.com/ihxj
>
> but I do not see anything else amiss. 5.9.0-rc5 built fine last week.

Reported-by: Naresh Kamboju <naresh.kamboju at linaro.org>