Re: [PATCH v3 3/4] rust: fmt: Default raw pointer formatting to HashedPtr

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

Hi Ke,

kernel test robot noticed the following build errors:

[auto build test ERROR on 9448598b22c50c8a5bb77a9103e2d49f134c9578]

url:    https://github.com/intel-lab-lkp/linux/commits/Ke-Sun/lib-vsprintf-Export-ptr_to_hashval-for-Rust-use/20251224-161946
base:   9448598b22c50c8a5bb77a9103e2d49f134c9578
patch link:    https://lore.kernel.org/r/20251224081315.729684-4-sunke%40kylinos.cn
patch subject: [PATCH v3 3/4] rust: fmt: Default raw pointer formatting to HashedPtr
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20251224/202512242153.r68Pb25u-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/20251224/202512242153.r68Pb25u-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/202512242153.r68Pb25u-lkp@intel.com/

All errors (new ones prefixed by >>):

   PATH=/opt/cross/clang-20/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
   INFO PATH=/opt/cross/rustc-1.88.0-bindgen-0.72.1/cargo/bin:/opt/cross/clang-20/bin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
   /usr/bin/timeout -k 100 12h /usr/bin/make KCFLAGS= -fno-crash-diagnostics -Wno-error=return-type -Wreturn-type -funsigned-char -Wundef W=1 --keep-going LLVM=1 -j32 -C source O=/kbuild/obj/consumer/x86_64-rhel-9.4-rust ARCH=x86_64 SHELL=/bin/bash rustfmtcheck
   make: Entering directory '/kbuild/src/consumer'
   make[1]: Entering directory '/kbuild/obj/consumer/x86_64-rhel-9.4-rust'
>> Diff in rust/kernel/fmt.rs:30:
    use core::fmt::{Binary, LowerExp, LowerHex, Octal, Pointer, UpperExp, UpperHex};
    impl_fmt_adapter_forward!(Debug, LowerHex, UpperHex, Octal, Binary, LowerExp, UpperExp);
    
   -use crate::ptr::{HashedPtr, RestrictedPtr, RawPtr};
   +use crate::ptr::{HashedPtr, RawPtr, RestrictedPtr};
    // Special handling for Pointer: default to HashedPtr for raw pointers.
    // This overrides the default Pointer implementation for raw pointers to use hashing,
    // which is the safe default behavior for kernel pointers.
>> Diff in rust/kernel/fmt.rs:30:
    use core::fmt::{Binary, LowerExp, LowerHex, Octal, Pointer, UpperExp, UpperHex};
    impl_fmt_adapter_forward!(Debug, LowerHex, UpperHex, Octal, Binary, LowerExp, UpperExp);
    
   -use crate::ptr::{HashedPtr, RestrictedPtr, RawPtr};
   +use crate::ptr::{HashedPtr, RawPtr, RestrictedPtr};
    // Special handling for Pointer: default to HashedPtr for raw pointers.
    // This overrides the default Pointer implementation for raw pointers to use hashing,
    // which is the safe default behavior for kernel pointers.
   make[2]: *** [Makefile:1871: rustfmt] Error 123
   make[2]: Target 'rustfmtcheck' not remade because of errors.
   make[1]: Leaving directory '/kbuild/obj/consumer/x86_64-rhel-9.4-rust'
   make[1]: *** [Makefile:248: __sub-make] Error 2
   make[1]: Target 'rustfmtcheck' not remade because of errors.
   make: *** [Makefile:248: __sub-make] Error 2
   make: Target 'rustfmtcheck' not remade because of errors.
   make: Leaving directory '/kbuild/src/consumer'

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki