mmc: mediatek: mark PM functions as __maybe_unused

The #ifdef check for the suspend/resume functions is wrong:

drivers/mmc/host/mtk-sd.c:2765:12: error: unused function 'msdc_suspend' [-Werror,-Wunused-function]
static int msdc_suspend(struct device *dev)
drivers/mmc/host/mtk-sd.c:2779:12: error: unused function 'msdc_resume' [-Werror,-Wunused-function]
static int msdc_resume(struct device *dev)

Remove the #ifdef and mark all four as __maybe_unused to aovid the
problem.

Fixes: c0a2074ac575 ("mmc: mediatek: Fix system suspend/resume support for CQHCI")
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20201203222922.1067522-1-arnd@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 7eb99255ae3db7b5ef4658e5668e9d084b24dc47..004fbfc236721f96972955990e543ed502d4cacf 100644 (file)
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -2604,7 +2604,6 @@ static int msdc_drv_remove(struct platform_device *pdev)
        return 0;
 }
 
-#ifdef CONFIG_PM
 static void msdc_save_reg(struct msdc_host *host)
 {
        u32 tune_reg = host->dev_comp->pad_tune_reg;
@@ -2663,7 +2662,7 @@ static void msdc_restore_reg(struct msdc_host *host)
                __msdc_enable_sdio_irq(host, 1);
 }
 
-static int msdc_runtime_suspend(struct device *dev)
+static int __maybe_unused msdc_runtime_suspend(struct device *dev)
 {
        struct mmc_host *mmc = dev_get_drvdata(dev);
        struct msdc_host *host = mmc_priv(mmc);
@@ -2673,7 +2672,7 @@ static int msdc_runtime_suspend(struct device *dev)
        return 0;
 }
 
-static int msdc_runtime_resume(struct device *dev)
+static int __maybe_unused msdc_runtime_resume(struct device *dev)
 {
        struct mmc_host *mmc = dev_get_drvdata(dev);
        struct msdc_host *host = mmc_priv(mmc);
@@ -2683,7 +2682,7 @@ static int msdc_runtime_resume(struct device *dev)
        return 0;
 }
 
-static int msdc_suspend(struct device *dev)
+static int __maybe_unused msdc_suspend(struct device *dev)
 {
        struct mmc_host *mmc = dev_get_drvdata(dev);
        int ret;
@@ -2697,11 +2696,10 @@ static int msdc_suspend(struct device *dev)
        return pm_runtime_force_suspend(dev);
 }
 
-static int msdc_resume(struct device *dev)
+static int __maybe_unused msdc_resume(struct device *dev)
 {
        return pm_runtime_force_resume(dev);
 }
-#endif
 
 static const struct dev_pm_ops msdc_dev_pm_ops = {
        SET_SYSTEM_SLEEP_PM_OPS(msdc_suspend, msdc_resume)