[drm-misc:topic/rust-drm 11/16] error: unreachable `pub` field

[kernel test robot <lkp@xxxxxxxxx>]

tree:   git://anongit.freedesktop.org/drm/drm-misc topic/rust-drm
head:   440a8db3f583392a1a894f32782ecc397911f9af
commit: c91cc0f1abf0e3de8b46034ab2e15da4860061a7 [11/16] rust: PCI: add BAR request and ioremap
config: x86_64-buildonly-randconfig-001-20240519 (https://download.01.org/0day-ci/archive/20240519/202405191312.68iyLxvG-lkp@xxxxxxxxx/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240519/202405191312.68iyLxvG-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405191312.68iyLxvG-lkp@xxxxxxxxx/

All error/warnings (new ones prefixed by >>):

>> warning: struct `IoMem` is never constructed
   --> rust/kernel/iomem.rs:10:12
   |
   10 | pub struct IoMem {
   |            ^^^^^
   |
   = note: `#[warn(dead_code)]` on by default
--
>> warning: multiple associated items are never used
   --> rust/kernel/iomem.rs:16:19
   |
   15  | impl IoMem {
   | ---------- associated items in this implementation
   16  |     pub(crate) fn new(ioptr: usize, maxlen: usize) -> Result<Self> {
   |                   ^^^
   ...
   24  |     fn get_io_addr(&self, offset: usize, len: usize) -> Result<usize> {
   |        ^^^^^^^^^^^
   ...
   32  |     pub fn readb(&self, offset: usize) -> Result<u8> {
   |            ^^^^^
   ...
   38  |     pub fn readw(&self, offset: usize) -> Result<u16> {
   |            ^^^^^
   ...
   44  |     pub fn readl(&self, offset: usize) -> Result<u32> {
   |            ^^^^^
   ...
   50  |     pub fn readq(&self, offset: usize) -> Result<u64> {
   |            ^^^^^
   ...
   56  |     pub fn readb_relaxed(&self, offset: usize) -> Result<u8> {
   |            ^^^^^^^^^^^^^
   ...
   62  |     pub fn readw_relaxed(&self, offset: usize) -> Result<u16> {
   |            ^^^^^^^^^^^^^
   ...
   68  |     pub fn readl_relaxed(&self, offset: usize) -> Result<u32> {
   |            ^^^^^^^^^^^^^
   ...
   74  |     pub fn readq_relaxed(&self, offset: usize) -> Result<u64> {
   |            ^^^^^^^^^^^^^
   ...
   80  |     pub fn writeb(&self, byte: u8, offset: usize) -> Result {
   |            ^^^^^^
   ...
   87  |     pub fn writew(&self, word: u16, offset: usize) -> Result {
   |            ^^^^^^
   ...
   94  |     pub fn writel(&self, lword: u32, offset: usize) -> Result {
   |            ^^^^^^
   ...
   101 |     pub fn writeq(&self, qword: u64, offset: usize) -> Result {
   |            ^^^^^^
   ...
   108 |     pub fn writeb_relaxed(&self, byte: u8, offset: usize) -> Result {
   |            ^^^^^^^^^^^^^^
   ...
   115 |     pub fn writew_relaxed(&self, word: u16, offset: usize) -> Result {
   |            ^^^^^^^^^^^^^^
   ...
   122 |     pub fn writel_relaxed(&self, lword: u32, offset: usize) -> Result {
   |            ^^^^^^^^^^^^^^
   ...
   129 |     pub fn writeq_relaxed(&self, qword: u64, offset: usize) -> Result {
   |            ^^^^^^^^^^^^^^
--
>> error: unreachable `pub` field
   --> rust/kernel/iomem.rs:11:5
   |
   11 |     pub ioptr: usize,
   |     ---^^^^^^^^^^^^^
   |     |
   |     help: consider restricting its visibility: `pub(crate)`

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