[PATCH] powerpc: Kconfig.cputype: Disallow TUNE_CELL on LE systems

Thomas Huth thuth at redhat.com
Sat Sep 19 00:17:00 AEST 2015

It looks somewhat weird that you can enable TUNE_CELL on little
endian systems, so let's disable this option with CPU_LITTLE_ENDIAN.

Signed-off-by: Thomas Huth <thuth at redhat.com>
 I first thought that it might be better to make this option depend
 on PPC_CELL instead ... but I guess it's a bad idea to depend a
 CPU option on a platform option? Alternatively, would it make
 sense to make it depend on (GENERIC_CPU || CELL_CPU) instead?

 arch/powerpc/platforms/Kconfig.cputype | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index c140e94..d93e131 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -149,7 +149,7 @@ config 6xx
 config TUNE_CELL
 	bool "Optimize for Cell Broadband Engine"
-	depends on PPC64 && PPC_BOOK3S
+	depends on PPC64 && PPC_BOOK3S && !CPU_LITTLE_ENDIAN
 	  Cause the compiler to optimize for the PPE of the Cell Broadband
 	  Engine. This will make the code run considerably faster on Cell

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