linux-kernel - [PATCH] powerpc: Fix build failure when CONFIG

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Date:	Thu, 21 Aug 2014 09:16:04 -0400
From:	Pranith Kumar <bobby.prani@...il.com>
To:	Alistair Popple <alistair@...ple.id.au>,
	Matt Porter <mporter@...nel.crashing.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	linuxppc-dev@...ts.ozlabs.org (open list:LINUX FOR POWERPC...),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] powerpc: Fix build failure when CONFIG_USB=y

We are enabling USB unconditionally which results in following build failure

drivers/built-in.o: In function `tb_drom_read': 
(.text+0x1b62b70): undefined reference to `usb_speed_string'
make: *** [vmlinux] Error 

Enable USB only if USB_SUPPORT is set to avoid such failures

Signed-off-by: Pranith Kumar <bobby.prani@...il.com>
---
 arch/powerpc/platforms/44x/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
index 3e7deb2..82f2da2 100644
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -215,7 +215,7 @@ config AKEBONO
 	select NET_VENDOR_IBM
 	select IBM_EMAC_EMAC4
 	select IBM_EMAC_RGMII_WOL
-	select USB
+	select USB if USB_SUPPORT
 	select USB_OHCI_HCD_PLATFORM if USB_OHCI_HCD
 	select USB_EHCI_HCD_PLATFORM if USB_EHCI_HCD
 	select MMC_SDHCI
-- 
1.9.1

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