From: Will Deacon <will@kernel.org>
Date: Tue, 8 Feb 2022 15:12:28 +0000
Subject: perf/marvell_cn10k: Fix unused variable warning when W=1 and
 CONFIG_OF=n
Git-commit: 8c0c56879d067ad1e68c0aeeecc7d5f57bac3ffd
Patch-mainline: v5.18-rc1
References: jsc#PED-1765

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>
Acked-by: Ivan T. Ivanov <iivanov@suse.de>
---
 drivers/perf/marvell_cn10k_tad_pmu.c |    2 ++
 1 file changed, 2 insertions(+)

--- 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 platfor
 	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         = {