Re: arch/x86/kernel/cpu/sgx/main.c:124: warning: Function parameter or member 'low' not described in 'sgx_calc_section_metric'

Jarkko Sakkinen
2023-08-22T10:30:49Z

On Tue Aug 22, 2023 at 10:27 AM EEST, kernel test robot wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: f7757129e3dea336c407551c98f50057c22bb266
> commit: e7e0545299d8cb0fd6fe3ba50401b7f5c3937362 x86/sgx: Initialize metadata for Enclave Page Cache (EPC) sections
> date: 2 years, 9 months ago
> config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230822/202308221542.11UpkVfp-lkp@intel.com/config)
> compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
> reproduce: (https://download.01.org/0day-ci/archive/20230822/202308221542.11UpkVfp-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/202308221542.11UpkVfp-lkp@intel.com/
>
> All warnings (new ones prefixed by >>):
>
> >> arch/x86/kernel/cpu/sgx/main.c:124: warning: Function parameter or member 'low' not described in 'sgx_calc_section_metric'
> >> arch/x86/kernel/cpu/sgx/main.c:124: warning: Function parameter or member 'high' not described in 'sgx_calc_section_metric'
>
>
> vim +124 arch/x86/kernel/cpu/sgx/main.c
>
> 117
> 118 /**
> 119 * A section metric is concatenated in a way that @low bits 12-31 define the
> 120 * bits 12-31 of the metric and @high bits 0-19 define the bits 32-51 of the
> 121 * metric.
> 122 */
> 123 static inline u64 __init sgx_calc_section_metric(u64 low, u64 high)
> > 124 {
> 125 return (low & GENMASK_ULL(31, 12)) +
> 126 ((high & GENMASK_ULL(19, 0)) << 32);
> 127 }
> 128
>
> --
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki

https://lkml.org/lkml/2023/8/22/379

BR, Jarkko