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ARM: at91: skip at91_io_desc definition for NOMMU

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On NOMMU systems, we do cannot remap the MMIO space, so the
definition of at91_io_desc is unused.

Without this patch, building at91x40_defconfig results in:

arch/arm/mach-at91/setup.c:90:24: warning: 'at91_io_desc' defined but not used [-Wunused-variable]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
This commit is contained in:
Arnd Bergmann 2012-04-30 13:18:53 +00:00
parent e0347c5238
commit ac09281a02
1 changed files with 1 additions and 1 deletions
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arch/arm/mach-at91/setup.c
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@ -87,7 +87,7 @@ void __init at91_init_sram(int bank, unsigned long base, unsigned int length)
iotable_init(desc, 1);
}
static struct map_desc at91_io_desc __initdata = {
static struct map_desc at91_io_desc __initdata __maybe_unused = {
.virtual = AT91_VA_BASE_SYS,
.pfn = __phys_to_pfn(AT91_BASE_SYS),
.length = SZ_16K,