linux-kernel - [PATCH] memory: tegra: avoid unused function warnings

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Date:   Wed,  8 Apr 2020 21:00:30 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>
Cc:     Arnd Bergmann <arnd@...db.de>, Thierry Reding <treding@...dia.com>,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] memory: tegra: avoid unused function warnings

The suspend/resume functions have no callers depending on
configuration, so they must be marked __maybe_unused to
avoid these harmless warnings:

drivers/memory/tegra/tegra186.c:1578:12: error: 'tegra186_mc_resume' defined but not used [-Werror=unused-function]
 1578 | static int tegra186_mc_resume(struct device *dev)
      |            ^~~~~~~~~~~~~~~~~~
drivers/memory/tegra/tegra186.c:1573:12: error: 'tegra186_mc_suspend' defined but not used [-Werror=unused-function]
 1573 | static int tegra186_mc_suspend(struct device *dev)
      |            ^~~~~~~~~~~~~~~~~~~

Fixes: 177602b00641 ("memory: tegra: Add system sleep support")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/memory/tegra/tegra186.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/memory/tegra/tegra186.c b/drivers/memory/tegra/tegra186.c
index 5d53f11ca7b6..e25c954dde2e 100644
--- a/drivers/memory/tegra/tegra186.c
+++ b/drivers/memory/tegra/tegra186.c
@@ -1570,12 +1570,12 @@ static const struct of_device_id tegra186_mc_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, tegra186_mc_of_match);
 
-static int tegra186_mc_suspend(struct device *dev)
+static int __maybe_unused tegra186_mc_suspend(struct device *dev)
 {
 	return 0;
 }
 
-static int tegra186_mc_resume(struct device *dev)
+static int __maybe_unused tegra186_mc_resume(struct device *dev)
 {
 	struct tegra186_mc *mc = dev_get_drvdata(dev);
 
-- 
2.26.0