[morse:mpam/snapshot/v5.15 46/139] arch/x86/kernel/cpu/resctrl/core.c:34:1: sparse: sparse: symbol 'domain_list_lock' was not declared. Should it be static?

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git mpam/snapshot/v5.15
head:   ce3629841262f725a5f3a327403fcaf0e604a85e
commit: 63dc771f72401f998123fca77456c2ef652f1fa6 [46/139] x86/resctrl: Split arch and fs resctrl locks
config: i386-randconfig-s002-20211116 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git/commit/?id=63dc771f72401f998123fca77456c2ef652f1fa6
        git remote add morse https://git.kernel.org/pub/scm/linux/kernel/git/morse/linux.git
        git fetch --no-tags morse mpam/snapshot/v5.15
        git checkout 63dc771f72401f998123fca77456c2ef652f1fa6
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash arch/x86/kernel/cpu/resctrl/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>


sparse warnings: (new ones prefixed by >>)
>> arch/x86/kernel/cpu/resctrl/core.c:34:1: sparse: sparse: symbol 'domain_list_lock' was not declared. Should it be static?

Please review and possibly fold the followup patch.

---
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