Re: [PATCH] rust: cpumask: Validate CPU number in set() and clear()

[kernel test robot]

Hi Viresh,

kernel test robot noticed the following build errors:

[auto build test ERROR on rafael-pm/linux-next]
[also build test ERROR on rafael-pm/bleeding-edge linus/master next-20250606]
[cannot apply to v6.15]
[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/Viresh-Kumar/rust-cpumask-Validate-CPU-number-in-set-and-clear/20250606-121822
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
patch link:    https://lore.kernel.org/r/8b5fc7889a7aacbd9f1f7412c99f02c736bde190.1749183428.git.viresh.kumar%40linaro.org
patch subject: [PATCH] rust: cpumask: Validate CPU number in set() and clear()
config: um-randconfig-001-20250607 (https://download.01.org/0day-ci/archive/20250607/202506070707.giDP6xhc-lkp@xxxxxxxxx/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8)
rustc: rustc 1.78.0 (9b00956e5 2024-04-29)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250607/202506070707.giDP6xhc-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/202506070707.giDP6xhc-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   ***
   *** Rust bindings generator 'bindgen' < 0.69.5 together with libclang >= 19.1
   *** may not work due to a bug (https://github.com/rust-lang/rust-bindgen/pull/2824),
   *** unless patched (like Debian's).
   ***   Your bindgen version:  0.65.1
   ***   Your libclang version: 21.0.0
   ***
   ***
   *** Please see Documentation/rust/quick-start.rst for details
   *** on how to set up the Rust support.
   ***
>> error[E0425]: cannot find value `nr_cpu_ids` in crate `bindings`
   --> rust/kernel/cpumask.rs:96:38
   |
   96 |         if unsafe { cpu >= bindings::nr_cpu_ids } {
   |                                      ^^^^^^^^^^ not found in `bindings`
--
>> error[E0425]: cannot find value `nr_cpu_ids` in crate `bindings`
   --> rust/kernel/cpumask.rs:113:45
   |
   113 |         if unsafe { cpu as u32 >= bindings::nr_cpu_ids } {
   |                                             ^^^^^^^^^^ not found in `bindings`

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