perf/marvell_cn10k: Fix unused variable warning when W=1 and CONFIG_OF=n

The kbuild helpfully reports that the Marvell CN10K TAD PMU driver emits
a warning when building with W=1 and CONFIG_OF=n:

  | >> drivers/perf/marvell_cn10k_tad_pmu.c:371:34: warning: unused variable 'tad_pmu_of_match' [-Wunused-const-variable]
       static const struct of_device_id tad_pmu_of_match[] = {

Guard the match table with CONFIG_OF to squash the warning.

Link: https://lore.kernel.org/r/202201292349.zRQLcDDD-lkp@intel.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Will Deacon <will@kernel.org>

diff --git a/drivers/perf/marvell_cn10k_tad_pmu.c b/drivers/perf/marvell_cn10k_tad_pmu.c
index 7f4d292658e3216dfcfcafe4f5780383d0f03f38..ee67305f822d08a08e29dcd6a7c69a2dfd82fa1a 100644 (file)
--- a/drivers/perf/marvell_cn10k_tad_pmu.c
+++ b/drivers/perf/marvell_cn10k_tad_pmu.c
@@ -368,10 +368,12 @@ static int tad_pmu_remove(struct platform_device *pdev)
        return 0;
 }
 
+#ifdef CONFIG_OF
 static const struct of_device_id tad_pmu_of_match[] = {
        { .compatible = "marvell,cn10k-tad-pmu", },
        {},
 };
+#endif
 
 static struct platform_driver tad_pmu_driver = {
        .driver         = {