[asahilinux:bits/250-aop 30/79] warning: reference as raw pointer

[asahilinux:bits/250-aop 30/79] warning: reference as raw pointer

[kernel test robot]

tree:   https://github.com/AsahiLinux/linux bits/250-aop
head:   e793b14f66e33b70363166d84886d82d462f1987
commit: 1dd83f8f25741b6844488bf0aec201b88d453c3b [30/79] rust: alloc: vec: Import .drain() / Drain from rust library
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260824/202608240442.bCCNt6I5-lkp@intel.com/config)
compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1)
rustc: rustc 1.96.0 (ac68faa20 2026-05-25)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260824/202608240442.bCCNt6I5-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/202608240442.bCCNt6I5-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> warning: reference as raw pointer
   --> rust/kernel/alloc/kvec/drain.rs:90:43
   |
   90 |             .map(|elt| unsafe { ptr::read(elt as *const _) })
   |                                           ^^^^^^^^^^^^^^^ help: try: `core::ptr::from_ref(elt)`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.96.0/index.html#ref_as_ptr
   = note: requested on the command line with `-W clippy::ref-as-ptr`
--
>> warning: reference as raw pointer
   --> rust/kernel/alloc/kvec/drain.rs:104:43
   |
   104 |             .map(|elt| unsafe { ptr::read(elt as *const _) })
   |                                           ^^^^^^^^^^^^^^^ help: try: `core::ptr::from_ref(elt)`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/rust-1.96.0/index.html#ref_as_ptr
--
>> warning: unresolved link to `mem::forget`
   --> rust/kernel/alloc/kvec.rs:795:11
   |
   795 |     /// [`mem::forget`], for example), the vector may have lost and leaked
   |           ^^^^^^^^^^^ no item named `mem` in scope
   |
   = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default

--
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https://github.com/intel/lkp-tests/wiki