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nios2: Fix unused variable warning

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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@denx.de>
Acked-by: Ley Foon Tan <lftan@altera.com>
This commit is contained in:
Marek Vasut 2015-09-30 22:06:46 +08:00 committed by Ley Foon Tan
parent 6a13feb9c8
commit 4db2196d0c
1 changed files with 1 additions and 1 deletions
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2
arch/nios2/kernel/setup.c
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@ -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 */