clang-nightly: ERROR: modpost: "wcslen" [fs/smb/client/cifs.ko] undefined!

[Arnd Bergmann]

On Wed, Apr 2, 2025, at 14:21, Naresh Kamboju wrote:
> Build regression: arm powerpc s390 modpost "wcslen" fs smb client
> cifs.ko undefined
>
> Reported-by: Linux Kernel Functional Testing <lkft at linaro.org>
>
> ## Build log
>
> ERROR: modpost: "wcslen" [fs/smb/client/cifs.ko] undefined!

This is from the latest clang release, and Nathan already sent a fix:

https://lore.kernel.org/lkml/20250328-string-add-wcslen-for-llvm-opt-v3-1-a180b4c0c1c4@kernel.org/

     Arnd