linux-kernel - [PATCH] memory: tegra: Fix -Wunused-const-variable

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Message-Id: <20190613172746.216819-1-nhuck@google.com>
Date:   Thu, 13 Jun 2019 10:27:46 -0700
From:   Nathan Huckleberry <nhuck@...gle.com>
To:     thierry.reding@...il.com, jonathanh@...dia.com
Cc:     linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        Nathan Huckleberry <nhuck@...gle.com>,
        clang-built-linux@...glegroups.com
Subject: [PATCH] memory: tegra: Fix -Wunused-const-variable

Clang produces the following warning

drivers/memory/tegra/tegra124.c:36:28: warning: unused variable
'tegra124_mc_emem_regs' [-Wunused-const-variable]
static const unsigned long tegra124_mc_emem_regs[] = {
                           ^

The only usage of this variable is from within an ifdef.
It seems logical to move the variable into the ifdef as well.

Cc: clang-built-linux@...glegroups.com
Link: https://github.com/ClangBuiltLinux/linux/issues/526
Signed-off-by: Nathan Huckleberry <nhuck@...gle.com>
---
 drivers/memory/tegra/tegra124.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/memory/tegra/tegra124.c b/drivers/memory/tegra/tegra124.c
index 8f8487bda642..8f2af5614595 100644
--- a/drivers/memory/tegra/tegra124.c
+++ b/drivers/memory/tegra/tegra124.c
@@ -33,6 +33,7 @@
 #define MC_EMEM_ARB_MISC1			0xdc
 #define MC_EMEM_ARB_RING1_THROTTLE		0xe0
 
+#ifdef CONFIG_ARCH_TEGRA_124_SOC
 static const unsigned long tegra124_mc_emem_regs[] = {
 	MC_EMEM_ARB_CFG,
 	MC_EMEM_ARB_OUTSTANDING_REQ,
@@ -54,6 +55,7 @@ static const unsigned long tegra124_mc_emem_regs[] = {
 	MC_EMEM_ARB_MISC1,
 	MC_EMEM_ARB_RING1_THROTTLE
 };
+#endif
 
 static const struct tegra_mc_client tegra124_mc_clients[] = {
 	{
-- 
2.22.0.rc2.383.gf4fbbf30c2-goog