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 <[email protected]> Cc: Nicolas Ferre <[email protected]> Cc: Jean-Christophe Plagniol-Villard <[email protected]> --- arch/arm/mach-at91/setup.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c index 944bffb..b9fdba0 100644 --- a/arch/arm/mach-at91/setup.c +++ b/arch/arm/mach-at91/setup.c @@ -87,12 +87,14 @@ void __init at91_init_sram(int bank, unsigned long base, unsigned int length) iotable_init(desc, 1); } +#ifdef CONFIG_MMU static struct map_desc at91_io_desc __initdata = { .virtual = AT91_VA_BASE_SYS, .pfn = __phys_to_pfn(AT91_BASE_SYS), .length = SZ_16K, .type = MT_DEVICE, }; +#endif static void __init soc_detect(u32 dbgu_base) { -- 1.7.10 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
