Re: [PATCH 2/2] samples: rust: pci: exercise capability lookup

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

Hi Zijing,

kernel test robot noticed the following build errors:

[auto build test ERROR on next-20260130]
[cannot apply to pci/next pci/for-linus v6.19-rc7 v6.19-rc6 v6.19-rc5 linus/master v6.16-rc1]
[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/Zijing-Zhang/rust-pci-add-capability-lookup-helpers/20260131-120935
base:   next-20260130
patch link:    https://lore.kernel.org/r/20260131040200.1242566-3-zijing.zhang%40ry.rs
patch subject: [PATCH 2/2] samples: rust: pci: exercise capability lookup
config: x86_64-rhel-9.4-rust (https://download.01.org/0day-ci/archive/20260131/202601311056.PVHRBER5-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/20260131/202601311056.PVHRBER5-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/202601311056.PVHRBER5-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 -falign-functions=64 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 samples/rust/rust_driver_pci.rs:138:
                ("SR-IOV", bindings::PCI_EXT_CAP_ID_SRIOV as u16),
            ] {
                if let Some(pos) = pdev.find_ext_capability(id) {
   -                dev_info!(pdev.as_ref(), "pci-testdev {name} ext cap @ 0x{:04x}\n", pos);
   +                dev_info!(
   +                    pdev.as_ref(),
   +                    "pci-testdev {name} ext cap @ 0x{:04x}\n",
   +                    pos
   +                );
                } else {
                    dev_info!(pdev.as_ref(), "pci-testdev has no {name} ext capability\n");
                }
   Diff in samples/rust/rust_driver_pci.rs:177:
                    );
                }
            } else {
   -            dev_info!(pdev.as_ref(), "pci-testdev selfcheck: no ext config space\n");
   +            dev_info!(
   +                pdev.as_ref(),
   +                "pci-testdev selfcheck: no ext config space\n"
   +            );
            }
        }
    }
   make[2]: *** [Makefile:1902: 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'

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https://github.com/intel/lkp-tests/wiki