linux-kernel - [PATCH] powerpc: allyesconfig should not select CONFIG_CPU_LITTLE

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Date:	Thu, 21 Nov 2013 16:33:55 +1100
From:	Anton Blanchard <anton@...ba.org>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	paulus@...ba.org, fengguang.wu@...el.com,
	Stephen Rothwell <sfr@...b.auug.org.au>, imunsie@....ibm.com
Cc:	linuxppc-dev@...ts.ozlabs.org, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] powerpc: allyesconfig should not select
 CONFIG_CPU_LITTLE_ENDIAN


Stephen reported a failure in an allyesconfig build.  
CONFIG_CPU_LITTLE_ENDIAN=y gets set but his toolchain is not
new enough to support little endian. We really want to
default to a big endian build; Ben suggested using a choice
which defaults to CPU_BIG_ENDIAN.

Signed-off-by: Anton Blanchard <anton@...ba.org>
---

Index: b/arch/powerpc/platforms/Kconfig.cputype
===================================================================
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -404,13 +404,27 @@ config PPC_DOORBELL
 
 endmenu
 
-config CPU_LITTLE_ENDIAN
-	bool "Build little endian kernel"
-	default n
+choice
+	prompt "Endianness selection"
+	default CPU_BIG_ENDIAN
 	help
 	  This option selects whether a big endian or little endian kernel will
 	  be built.
 
+config CPU_BIG_ENDIAN
+	bool "Build big endian kernel"
+	help
+	  Build a big endian kernel.
+
+	  If unsure, select this option.
+
+config CPU_LITTLE_ENDIAN
+	bool "Build little endian kernel"
+	help
+	  Build a little endian kernel.
+
 	  Note that if cross compiling a little endian kernel,
 	  CROSS_COMPILE must point to a toolchain capable of targeting
 	  little endian powerpc.
+
+endchoice
--
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