# Re: \[PATCH v12 3/5\] rust: samples: add tracepoint to Rust sample

- From: kernel test robot \<hidden\>
- Date: 2024-11-02 07:08:27 
- List: linux-trace-kernel
- Page: https://ratatoskr.run/linux-trace-kernel/2024/11/2810064
- Thread: https://ratatoskr.run/oe-kbuild-all/2024/11/2810064/t.md

```text
Hi Alice,

kernel test robot noticed the following build errors:

[auto build test ERROR on eb887c4567d1b0e7684c026fe7df44afa96589e6]

url:    https://github.com/intel-lab-lkp/linux/commits/Alice-Ryhl/rust-add-static_branch_unlikely-for-static_key_false/20241031-000709
base:   eb887c4567d1b0e7684c026fe7df44afa96589e6
patch link:    https://lore.kernel.org/r/20241030-tracepoint-v12-3-eec7f0f8ad22%40google.com
patch subject: [PATCH v12 3/5] rust: samples: add tracepoint to Rust sample
config: x86_64-randconfig-103-20241101 (https://download.01.org/0day-ci/archive/20241102/202411021421.jZ0FSDq6-lkp@intel.com/config)
compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241102/202411021421.jZ0FSDq6-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 [ref]
| Closes: https://lore.kernel.org/oe-kbuild-all/202411021421.jZ0FSDq6-lkp@intel.com/

All errors (new ones prefixed by >>):

>> error[E0425]: cannot find value `__tracepoint_rust_sample_loaded` in crate `$crate::bindings`
   --> samples/rust/rust_print.rs:87:5
   |
   87 | /     kernel::declare_trace! {
   88 | |         /// # Safety
   89 | |         ///
   90 | |         /// Always safe to call.
   91 | |         unsafe fn rust_sample_loaded(magic: c_int);
   92 | |     }
   | |_____^ not found in `$crate::bindings`
   |
   = note: this error originates in the macro `kernel::declare_trace` (in Nightly builds, run with -Z macro-backtrace for more info)
--
>> error[E0425]: cannot find function `rust_do_trace_rust_sample_loaded` in crate `$crate::bindings`
   --> samples/rust/rust_print.rs:87:5
   |
   87 | /     kernel::declare_trace! {
   88 | |         /// # Safety
   89 | |         ///
   90 | |         /// Always safe to call.
   91 | |         unsafe fn rust_sample_loaded(magic: c_int);
   92 | |     }
   | |_____^ not found in `$crate::bindings`
   |
   = note: this error originates in the macro `kernel::declare_trace` (in Nightly builds, run with -Z macro-backtrace for more info)

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