Warning fixes for clang + x86_64 allmodconfig on 5.10 and 5.4

Warning fixes for clang + x86_64 allmodconfig on 5.10 and 5.4

[Nathan Chancellor]

Hi Greg and Sasha,

A recent change in LLVM [1] strengthened -Wenum-conversion, which
revealed a couple of instances in 5.10 and 5.4 (the oldest release that
I personally build test). They are fixed with the following changes,
please consider applying them wherever they apply cleanly (I have
included the release they first appeared in):

1f1e87b4dc45 ("block: drbd: drbd_nl: Make conversion to 'enum drbd_ret_code' explicit") [5.13]
353f7f3a9dd5 ("drm/amd/display/dc/gpio/gpio_service: Pass around correct dce_{version, environment} types") [5.14]

Since I am here already, please consider applying the following
additional changes where they cleanly apply, as they resolve other
warnings present in x86_64 allmodconfig with clang:

7bf03e7504e4 ("drm/i915: Cast remain to unsigned long in eb_relocate_vma") [5.8]
8a64ef042eab ("nfp: bpf: silence bitwise vs. logical OR warning") [5.15]

If there are any problems or questions, please let me know!

[1]: https://github.com/llvm/llvm-project/commit/882915df61e33f3a2b7f58e52f572717e1c11499

Cheers,
Nathan

Re: Warning fixes for clang + x86_64 allmodconfig on 5.10 and 5.4

[Greg Kroah-Hartman]

On Tue, May 10, 2022 at 10:49:16AM -0700, Nathan Chancellor wrote:
> Hi Greg and Sasha,
> 
> A recent change in LLVM [1] strengthened -Wenum-conversion, which
> revealed a couple of instances in 5.10 and 5.4 (the oldest release that
> I personally build test). They are fixed with the following changes,
> please consider applying them wherever they apply cleanly (I have
> included the release they first appeared in):
> 
> 1f1e87b4dc45 ("block: drbd: drbd_nl: Make conversion to 'enum drbd_ret_code' explicit") [5.13]
> 353f7f3a9dd5 ("drm/amd/display/dc/gpio/gpio_service: Pass around correct dce_{version, environment} types") [5.14]
> 
> Since I am here already, please consider applying the following
> additional changes where they cleanly apply, as they resolve other
> warnings present in x86_64 allmodconfig with clang:
> 
> 7bf03e7504e4 ("drm/i915: Cast remain to unsigned long in eb_relocate_vma") [5.8]
> 8a64ef042eab ("nfp: bpf: silence bitwise vs. logical OR warning") [5.15]
> 
> If there are any problems or questions, please let me know!
> 
> [1]: https://github.com/llvm/llvm-project/commit/882915df61e33f3a2b7f58e52f572717e1c11499

All now queued up, thanks.

greg k-h