Re: [PATCH v2 1/1] rust: seq_file: add puts, putc, write, and hex_dump methods

[kernel test robot <lkp@intel.com>]

Hi Christian,

kernel test robot noticed the following build warnings:

[auto build test WARNING on brauner-vfs/vfs.all]
[also build test WARNING on next-20260410]
[cannot apply to linus/master v6.16-rc1]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Christian-Benton/rust-seq_file-add-puts-putc-write-and-hex_dump-methods/20260412-035855
base:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git vfs.all
patch link:    https://lore.kernel.org/r/20260408215530.446994-2-t1bur0n.kernel.org%40protonmail.ch
patch subject: [PATCH v2 1/1] rust: seq_file: add puts, putc, write, and hex_dump methods
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260412/202604120236.nzYgh7vO-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
rustc: rustc 1.88.0 (6b00bc388 2025-06-23)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260412/202604120236.nzYgh7vO-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604120236.nzYgh7vO-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> warning: methods with the following characteristics: (`to_*` and `self` type is not `Copy`) usually take `self` by reference
   --> rust/kernel/seq_file.rs:29:17
   |
   29 |     fn to_c_int(self) -> ffi::c_int {
   |                 ^^^^
   |
   = help: consider choosing a less ambiguous name
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention
   = note: `-W clippy::wrong-self-convention` implied by `-W clippy::all`
   = help: to override `-W clippy::all` add `#[allow(clippy::wrong_self_convention)]`

-- 
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