[PATCH 9/9] ARM: mmp: mark usb_dma_mask as __maybe_unused

From	Arnd Bergmann <arnd@arndb.de>
Newsgroups	linux.kernel
Subject	[PATCH 9/9] ARM: mmp: mark usb_dma_mask as __maybe_unused
Date	2016-01-29 15:10 +0100
Message-ID	<qWhUq-4fz-81@gated-at.bofh.it> (permalink)
References	<qWhUn-4fz-23@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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This variable may be used by some devices that each have their
on Kconfig symbol, or by none of them, and that causes a build
warning:

arch/arm/mach-mmp/devices.c:241:12: error: 'usb_dma_mask' defined but not used [-Werror=unused-variable]

Marking it __maybe_unused avoids the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/mach-mmp/devices.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-mmp/devices.c b/arch/arm/mach-mmp/devices.c
index 3330ac7cfbef..671c7a09ab3d 100644
--- a/arch/arm/mach-mmp/devices.c
+++ b/arch/arm/mach-mmp/devices.c
@@ -238,7 +238,7 @@ void pxa_usb_phy_deinit(void __iomem *phy_reg)
 #endif
 
 #if IS_ENABLED(CONFIG_USB_SUPPORT)
-static u64 usb_dma_mask = ~(u32)0;
+static u64 __maybe_unused usb_dma_mask = ~(u32)0;
 
 #if IS_ENABLED(CONFIG_USB_MV_UDC)
 struct resource pxa168_u2o_resources[] = {
-- 
2.7.0

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[PATCH 9/9] ARM: mmp: mark usb_dma_mask as __maybe_unused Arnd Bergmann <arnd@arndb.de> - 2016-01-29 15:10 +0100

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