Re: [PATCH] rust: io: convert `PhysAddr` type alias to newtype

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

Hi Albab,

kernel test robot noticed the following build errors:

[auto build test ERROR on driver-core/driver-core-testing]
[also build test ERROR on driver-core/driver-core-next driver-core/driver-core-linus rust/rust-next linus/master v7.1-rc3 next-20260508]
[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/Albab-Hasan/rust-io-convert-PhysAddr-type-alias-to-newtype/20260515-155255
base:   driver-core/driver-core-testing
patch link:    https://lore.kernel.org/r/20260504045714.59248-1-albabhasan276%40gmail.com
patch subject: [PATCH] rust: io: convert `PhysAddr` type alias to newtype
config: loongarch-randconfig-002-20260515 (https://download.01.org/0day-ci/archive/20260516/202605160005.NTpIKu0B-lkp@intel.com/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 5bac06718f502014fade905512f1d26d578a18f3)
rustc: rustc 1.88.0 (6b00bc388 2025-06-23)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260516/202605160005.NTpIKu0B-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/202605160005.NTpIKu0B-lkp@intel.com/

All errors (new ones prefixed by >>):

>> error[E0308]: mismatched types
   --> rust/kernel/io/mem.rs:257:43
   |
   257  |             unsafe { bindings::ioremap_np(res_start, size) }
   |                      -------------------- ^^^^^^^^^ expected `u64`, found `PhysAddr`
   |                      |
   |                      arguments to this function are incorrect
   |
   note: function defined here
   --> rust/bindings/bindings_helpers_generated.rs:1272:12
   |
   1272 |     pub fn ioremap_np(offset: phys_addr_t, size: usize) -> *mut ffi::c_void;
   |            ^^^^^^^^^^
   help: call `Into::into` on this expression to convert `PhysAddr` into `u64`
   |
   257  |             unsafe { bindings::ioremap_np(res_start.into(), size) }
   |                                                    +++++++
--
>> error[E0308]: mismatched types
   --> rust/kernel/io/mem.rs:262:40
   |
   262  |             unsafe { bindings::ioremap(res_start, size) }
   |                      ----------------- ^^^^^^^^^ expected `u64`, found `PhysAddr`
   |                      |
   |                      arguments to this function are incorrect
   |
   note: function defined here
   --> rust/bindings/bindings_helpers_generated.rs:1268:12
   |
   1268 |     pub fn ioremap(offset: phys_addr_t, size: usize) -> *mut ffi::c_void;
   |            ^^^^^^^
   help: call `Into::into` on this expression to convert `PhysAddr` into `u64`
   |
   262  |             unsafe { bindings::ioremap(res_start.into(), size) }
   |                                                 +++++++

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