Re: [RFC net-next 2/4] ethtool: module: Add CMIS loopback GET/SET support

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

Hi Björn,

[This is a private test report for your RFC patch.]
kernel test robot noticed the following build warnings:

[auto build test WARNING on 37a93dd5c49b5fda807fd204edf2547c3493319c]

url:    https://github.com/intel-lab-lkp/linux/commits/Bj-rn-T-pel/ethtool-module-Define-CMIS-loopback-YAML-spec-and-UAPI/20260219-210654
base:   37a93dd5c49b5fda807fd204edf2547c3493319c
patch link:    https://lore.kernel.org/r/20260219130050.2390226-3-bjorn%40kernel.org
patch subject: [RFC net-next 2/4] ethtool: module: Add CMIS loopback GET/SET support
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20260220/202602201104.2XiB2Zfo-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260220/202602201104.2XiB2Zfo-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/202602201104.2XiB2Zfo-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> net/ethtool/module.c:88:2: warning: label at end of compound statement is a C23 extension [-Wc23-extensions]
      88 |         }
         |         ^
   1 warning generated.


vim +88 net/ethtool/module.c

    76	
    77	static bool module_is_cmis(u8 phys_id)
    78	{
    79		switch (phys_id) {
    80		case SFF8024_ID_QSFP_DD:
    81		case SFF8024_ID_OSFP:
    82		case SFF8024_ID_DSFP:
    83		case SFF8024_ID_QSFP_PLUS_CMIS:
    84		case SFF8024_ID_SFP_DD_CMIS:
    85		case SFF8024_ID_SFP_PLUS_CMIS:
    86			return true;
    87		default:
  > 88		}
    89		return false;
    90	}
    91	

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