[07/17] ARM: at91: skip at91_io_desc definition for NOMMU

Message ID 1349195816-2225-8-git-send-email-arnd@arndb.de
State New
Headers show

Commit Message

Arnd Bergmann Oct. 2, 2012, 4:36 p.m.
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>
---
 arch/arm/mach-at91/setup.c |    2 ++
 1 file changed, 2 insertions(+)

Patch

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)
 {