Re: [PATCH] rust: miscdevice: fix warning on c_uint to u32 cast

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Tue, Oct 15, 2024 at 02:13:22PM +0000, Alice Ryhl wrote:
> When building miscdevice with clippy warnings, the following warning is
> emitted:
> 
> 	warning: casting to the same type is unnecessary (`u32` -> `u32`)
> 	   --> /home/aliceryhl/rust-for-linux/rust/kernel/miscdevice.rs:220:28
> 	    |
> 	220 |     match T::ioctl(device, cmd as u32, arg as usize) {
> 	    |                            ^^^^^^^^^^ help: try: `cmd`
> 	    |
> 	    = help: for further information visit
> 	      https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
> 	    = note: `-W clippy::unnecessary-cast` implied by `-W clippy::all`
> 	    = help: to override `-W clippy::all` add `#[allow(clippy::unnecessary_cast)]`
> 
> Thus, fix it.
> 
> Signed-off-by: Alice Ryhl <aliceryhl@google.com>
> ---
> This fixes a warning on my patches in char-misc-next. Greg, can you take
> this through that tree?

Will do, thanks!

greg k-h