linux-kernel - [PATCH] cpufreq: Fix warning on unused of_device_id tables for !CONFIG

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Message-ID: <20240809172439.908092-1-robh@kernel.org>
Date: Fri,  9 Aug 2024 11:24:38 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Hector Martin <marcan@...can.st>,
	Sven Peter <sven@...npeter.dev>,
	Alyssa Rosenzweig <alyssa@...enzweig.io>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Viresh Kumar <viresh.kumar@...aro.org>,
	Ilia Lin <ilia.lin@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: kernel test robot <lkp@...el.com>,
	asahi@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	linux-mediatek@...ts.infradead.org
Subject: [PATCH] cpufreq: Fix warning on unused of_device_id tables for !CONFIG_OF

!CONFIG_OF builds cause warnings on unused of_device_id tables. This is
due to of_match_node() being a macro rather than static inline function.
Add a __maybe_unused annotation to the of_device_id tables.

Fixes: c7582ec85342 ("cpufreq: Drop CONFIG_ARM and CONFIG_ARM64 dependency on Arm drivers")
Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202408090714.wcrqU6Pk-lkp@intel.com/
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
Note that 0-day only reported 1 warning, but x86 W=1 build gave me these
4.
---
 drivers/cpufreq/apple-soc-cpufreq.c  | 2 +-
 drivers/cpufreq/mediatek-cpufreq.c   | 2 +-
 drivers/cpufreq/qcom-cpufreq-nvmem.c | 2 +-
 drivers/cpufreq/ti-cpufreq.c         | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/cpufreq/apple-soc-cpufreq.c b/drivers/cpufreq/apple-soc-cpufreq.c
index af34c22fa273..4dcacab9b4bf 100644
--- a/drivers/cpufreq/apple-soc-cpufreq.c
+++ b/drivers/cpufreq/apple-soc-cpufreq.c
@@ -85,7 +85,7 @@ static const struct apple_soc_cpufreq_info soc_default_info = {
 	.cur_pstate_mask = 0, /* fallback */
 };
 
-static const struct of_device_id apple_soc_cpufreq_of_match[] = {
+static const struct of_device_id apple_soc_cpufreq_of_match[] __maybe_unused = {
 	{
 		.compatible = "apple,t8103-cluster-cpufreq",
 		.data = &soc_t8103_info,
diff --git a/drivers/cpufreq/mediatek-cpufreq.c b/drivers/cpufreq/mediatek-cpufreq.c
index 3a1aadaa723c..663f61565cf7 100644
--- a/drivers/cpufreq/mediatek-cpufreq.c
+++ b/drivers/cpufreq/mediatek-cpufreq.c
@@ -738,7 +738,7 @@ static const struct mtk_cpufreq_platform_data mt8516_platform_data = {
 };
 
 /* List of machines supported by this driver */
-static const struct of_device_id mtk_cpufreq_machines[] __initconst = {
+static const struct of_device_id mtk_cpufreq_machines[] __initconst __maybe_unused = {
 	{ .compatible = "mediatek,mt2701", .data = &mt2701_platform_data },
 	{ .compatible = "mediatek,mt2712", .data = &mt2701_platform_data },
 	{ .compatible = "mediatek,mt7622", .data = &mt7622_platform_data },
diff --git a/drivers/cpufreq/qcom-cpufreq-nvmem.c b/drivers/cpufreq/qcom-cpufreq-nvmem.c
index 939702dfa73f..703308fb891a 100644
--- a/drivers/cpufreq/qcom-cpufreq-nvmem.c
+++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c
@@ -611,7 +611,7 @@ static struct platform_driver qcom_cpufreq_driver = {
 	},
 };
 
-static const struct of_device_id qcom_cpufreq_match_list[] __initconst = {
+static const struct of_device_id qcom_cpufreq_match_list[] __initconst __maybe_unused = {
 	{ .compatible = "qcom,apq8096", .data = &match_data_kryo },
 	{ .compatible = "qcom,msm8909", .data = &match_data_msm8909 },
 	{ .compatible = "qcom,msm8996", .data = &match_data_kryo },
diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c
index 4d3f27958fbd..220fff7a302e 100644
--- a/drivers/cpufreq/ti-cpufreq.c
+++ b/drivers/cpufreq/ti-cpufreq.c
@@ -419,7 +419,7 @@ static int ti_cpufreq_setup_syscon_register(struct ti_cpufreq_data *opp_data)
 	return 0;
 }
 
-static const struct of_device_id ti_cpufreq_of_match[] = {
+static const struct of_device_id ti_cpufreq_of_match[]  __maybe_unused = {
 	{ .compatible = "ti,am33xx", .data = &am3x_soc_data, },
 	{ .compatible = "ti,am3517", .data = &am3517_soc_data, },
 	{ .compatible = "ti,am43", .data = &am4x_soc_data, },
-- 
2.43.0