linux-kernel - [PATCH] memory: tegra: fix unused-function warning

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Date:   Thu, 22 Jul 2021 11:07:43 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>
Cc:     Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
        linux-tegra@...r.kernel.org
Subject: [PATCH] memory: tegra: fix unused-function warning

From: Arnd Bergmann <arnd@...db.de>

The tegra186_mc_client_sid_override() is only called from
an #ifdef block:

drivers/memory/tegra/tegra186.c:74:13: error: 'tegra186_mc_client_sid_override' defined but not used [-Werror=unused-function]
   74 | static void tegra186_mc_client_sid_override(struct tegra_mc *mc,
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Add another #ifdef around the called function.

Fixes: 393d66fd2cac ("memory: tegra: Implement SID override programming")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/memory/tegra/tegra186.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/memory/tegra/tegra186.c b/drivers/memory/tegra/tegra186.c
index e65eac5764d4..3d153881abc1 100644
--- a/drivers/memory/tegra/tegra186.c
+++ b/drivers/memory/tegra/tegra186.c
@@ -71,6 +71,7 @@ static int tegra186_mc_resume(struct tegra_mc *mc)
 	return 0;
 }
 
+#if IS_ENABLED(CONFIG_IOMMU_API)
 static void tegra186_mc_client_sid_override(struct tegra_mc *mc,
 					    const struct tegra_mc_client *client,
 					    unsigned int sid)
@@ -108,6 +109,7 @@ static void tegra186_mc_client_sid_override(struct tegra_mc *mc,
 		writel(sid, mc->regs + client->regs.sid.override);
 	}
 }
+#endif
 
 static int tegra186_mc_probe_device(struct tegra_mc *mc, struct device *dev)
 {
-- 
2.29.2