Re: [RFC PATCH v3 4/4] cxl/pci: Add support for stand alone CXL Switch mailbox CCI

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

Hi Jonathan,

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

[auto build test ERROR on cxl/next]
[also build test ERROR on pci/next pci/for-linus linus/master v6.5-rc2 next-20230718]
[cannot apply to cxl/pending]
[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/Jonathan-Cameron/cxl-mbox-Preparatory-move-of-functions-to-core-mbox-c/20230718-181730
base:   https://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git next
patch link:    https://lore.kernel.org/r/20230717162557.8625-5-Jonathan.Cameron%40huawei.com
patch subject: [RFC PATCH v3 4/4] cxl/pci: Add support for stand alone CXL Switch mailbox CCI
config: s390-randconfig-r044-20230718 (https://download.01.org/0day-ci/archive/20230719/202307190403.S7poXmCU-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230719/202307190403.S7poXmCU-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/202307190403.S7poXmCU-lkp@intel.com/

All errors (new ones prefixed by >>):

>> make[5]: *** No rule to make target 'drivers/cxl/core/switch-cci.o', needed by 'drivers/cxl/core/cxl_core.o'.
   make[5]: Target 'drivers/cxl/core/' not remade because of errors.

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