[PATCH v2 2/4] powerpc/perf: make isa207_pmu_format_group struct static

[kernel test robot]

Hi Madhavan,

kernel test robot noticed the following build errors:

[auto build test ERROR on powerpc/next]
[also build test ERROR on powerpc/fixes linus/master powerpc/topic/ppc-kvm v6.15-rc6 next-20250516]
[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/Madhavan-Srinivasan/powerpc-perf-make-isa207_pmu_format_group-struct-static/20250518-124244
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
patch link:    https://lore.kernel.org/r/20250518044107.39928-2-maddy%40linux.ibm.com
patch subject: [PATCH v2 2/4] powerpc/perf: make isa207_pmu_format_group struct static
config: powerpc64-randconfig-002-20250518 (https://download.01.org/0day-ci/archive/20250518/202505181711.k5ONrdnI-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 7.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250518/202505181711.k5ONrdnI-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202505181711.k5ONrdnI-lkp@intel.com/

All errors (new ones prefixed by >>):

>> powerpc64-linux-ld: arch/powerpc/perf/power8-pmu.o:arch/powerpc/perf/power8-pmu.c:199: undefined reference to `isa207_pmu_format_group'

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