linux-kernel - [PATCH] nios2: Fix unused variable warning

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Message-Id: <1442637651-10694-1-git-send-email-marex@denx.de>
Date:	Sat, 19 Sep 2015 06:40:51 +0200
From:	Marek Vasut <marex@...x.de>
To:	linux-kernel@...r.kernel.org
Cc:	lftan@...era.com, Marek Vasut <marex@...x.de>
Subject: [PATCH] nios2: Fix unused variable warning

Fix the following compiler splat by adding __maybe_unused annotation
to the variable. Using this particular annotation has the least ugly
impact on the code compared to using ifdeffery.

arch/nios2/kernel/setup.c: In function 'nios2_boot_init':
arch/nios2/kernel/setup.c:107:7: warning: unused variable 'cmdline_passed' [-Wunused-variable]
  char cmdline_passed[COMMAND_LINE_SIZE] = { 0, };
       ^

Signed-off-by: Marek Vasut <marex@...x.de>
---
 arch/nios2/kernel/setup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/nios2/kernel/setup.c b/arch/nios2/kernel/setup.c
index b101a43..a4ff86d 100644
--- a/arch/nios2/kernel/setup.c
+++ b/arch/nios2/kernel/setup.c
@@ -104,7 +104,7 @@ asmlinkage void __init nios2_boot_init(unsigned r4, unsigned r5, unsigned r6,
 				       unsigned r7)
 {
 	unsigned dtb_passed = 0;
-	char cmdline_passed[COMMAND_LINE_SIZE] = { 0, };
+	char cmdline_passed[COMMAND_LINE_SIZE] __maybe_unused = { 0, };
 
 #if defined(CONFIG_NIOS2_PASS_CMDLINE)
 	if (r4 == 0x534f494e) { /* r4 is magic NIOS */
-- 
2.1.4

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