Re: [PATCH] net: mctp: Add MCTP PCIe VDM transport driver

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

Hi aspeedyh,

kernel test robot noticed the following build warnings:

[auto build test WARNING on net-next/main]
[also build test WARNING on net/main linus/master v6.16-rc6 next-20250716]
[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/aspeedyh/net-mctp-Add-MCTP-PCIe-VDM-transport-driver/20250714-142656
base:   net-next/main
patch link:    https://lore.kernel.org/r/20250714062544.2612693-1-yh_chung%40aspeedtech.com
patch subject: [PATCH] net: mctp: Add MCTP PCIe VDM transport driver
config: powerpc64-randconfig-r122-20250717 (https://download.01.org/0day-ci/archive/20250717/202507171855.3WJVpX2l-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project 16534d19bf50bde879a83f0ae62875e2c5120e64)
reproduce: (https://download.01.org/0day-ci/archive/20250717/202507171855.3WJVpX2l-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/202507171855.3WJVpX2l-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/net/mctp/mctp-pcie-vdm.c:130:1: sparse: sparse: symbol 'mctp_pcie_vdm_dev_mutex' was not declared. Should it be static?
>> drivers/net/mctp/mctp-pcie-vdm.c:131:1: sparse: sparse: symbol 'mctp_pcie_vdm_devs' was not declared. Should it be static?
>> drivers/net/mctp/mctp-pcie-vdm.c:132:25: sparse: sparse: symbol 'mctp_pcie_vdm_wq' was not declared. Should it be static?
>> drivers/net/mctp/mctp-pcie-vdm.c:343:9: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int [usertype] @@     got restricted __be32 [usertype] @@
   drivers/net/mctp/mctp-pcie-vdm.c:343:9: sparse:     expected unsigned int [usertype]
   drivers/net/mctp/mctp-pcie-vdm.c:343:9: sparse:     got restricted __be32 [usertype]
>> drivers/net/mctp/mctp-pcie-vdm.c:398:17: sparse: sparse: cast to restricted __be32
>> drivers/net/mctp/mctp-pcie-vdm.c:398:17: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int [usertype] @@     got restricted __le32 [usertype] @@
   drivers/net/mctp/mctp-pcie-vdm.c:398:17: sparse:     expected unsigned int [usertype]
   drivers/net/mctp/mctp-pcie-vdm.c:398:17: sparse:     got restricted __le32 [usertype]
   drivers/net/mctp/mctp-pcie-vdm.c:453:25: sparse: sparse: cast to restricted __be32
   drivers/net/mctp/mctp-pcie-vdm.c:453:25: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int [usertype] @@     got restricted __le32 [usertype] @@
   drivers/net/mctp/mctp-pcie-vdm.c:453:25: sparse:     expected unsigned int [usertype]
   drivers/net/mctp/mctp-pcie-vdm.c:453:25: sparse:     got restricted __le32 [usertype]

vim +/mctp_pcie_vdm_dev_mutex +130 drivers/net/mctp/mctp-pcie-vdm.c

   128	
   129	/* mutex for vdm_devs add/delete */
 > 130	DEFINE_MUTEX(mctp_pcie_vdm_dev_mutex);
 > 131	LIST_HEAD(mctp_pcie_vdm_devs);
 > 132	struct workqueue_struct *mctp_pcie_vdm_wq;
   133	

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