Re: [PATCH] powerpc: Kconfig: remove BE-only platforms from LE kernel build

From: Boqun Feng
Date: Thu Sep 17 2015 - 20:22:36 EST


Ping ;-)

Regards,
Boqun

On Mon, Sep 07, 2015 at 07:58:00AM +0800, Boqun Feng wrote:
> Currently, little endian is only supported on powernv and pseries,
> however, Kconfigs still allow us to include other platforms in a LE
> kernel, this may result in space wasting or even build error if some
> BE-only platforms always assume they are built for a BE kernel. So just
> modify the Kconfigs of BE-only platforms to remove them from being built
> for a LE kernel.
>
> For 32bit only platforms, nothing needs to be done, because
> CPU_LITTLE_ENDIAN depends on PPC64. For 64bit supported platforms, add
> CPU_BIG_ENDIAN to dependencies explicitly, so that these platforms will
> be disabled for LE [Suggested-by: Cédric Le Goater <clg@xxxxxxxxxx>].
>
> Signed-off-by: Boqun Feng <boqun.feng@xxxxxxxxx>
> ---
> arch/powerpc/platforms/cell/Kconfig | 4 ++--
> arch/powerpc/platforms/maple/Kconfig | 2 +-
> arch/powerpc/platforms/pasemi/Kconfig | 2 +-
> arch/powerpc/platforms/powermac/Kconfig | 2 +-
> arch/powerpc/platforms/ps3/Kconfig | 2 +-
> 5 files changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
> index 2f23133..808a904 100644
> --- a/arch/powerpc/platforms/cell/Kconfig
> +++ b/arch/powerpc/platforms/cell/Kconfig
> @@ -25,7 +25,7 @@ config PPC_CELL_NATIVE
>
> config PPC_IBM_CELL_BLADE
> bool "IBM Cell Blade"
> - depends on PPC64 && PPC_BOOK3S
> + depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
> select PPC_CELL_NATIVE
> select PPC_OF_PLATFORM_PCI
> select PCI
> @@ -35,7 +35,7 @@ config PPC_IBM_CELL_BLADE
>
> config PPC_CELL_QPACE
> bool "IBM Cell - QPACE"
> - depends on PPC64 && PPC_BOOK3S
> + depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
> select PPC_CELL_COMMON
>
> config AXON_MSI
> diff --git a/arch/powerpc/platforms/maple/Kconfig b/arch/powerpc/platforms/maple/Kconfig
> index 1ea621a..e359d0d 100644
> --- a/arch/powerpc/platforms/maple/Kconfig
> +++ b/arch/powerpc/platforms/maple/Kconfig
> @@ -1,5 +1,5 @@
> config PPC_MAPLE
> - depends on PPC64 && PPC_BOOK3S
> + depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
> bool "Maple 970FX Evaluation Board"
> select PCI
> select MPIC
> diff --git a/arch/powerpc/platforms/pasemi/Kconfig b/arch/powerpc/platforms/pasemi/Kconfig
> index a2aeb32..00d4b28 100644
> --- a/arch/powerpc/platforms/pasemi/Kconfig
> +++ b/arch/powerpc/platforms/pasemi/Kconfig
> @@ -1,5 +1,5 @@
> config PPC_PASEMI
> - depends on PPC64 && PPC_BOOK3S
> + depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
> bool "PA Semi SoC-based platforms"
> default n
> select MPIC
> diff --git a/arch/powerpc/platforms/powermac/Kconfig b/arch/powerpc/platforms/powermac/Kconfig
> index 607124b..43c6062 100644
> --- a/arch/powerpc/platforms/powermac/Kconfig
> +++ b/arch/powerpc/platforms/powermac/Kconfig
> @@ -1,6 +1,6 @@
> config PPC_PMAC
> bool "Apple PowerMac based machines"
> - depends on PPC_BOOK3S
> + depends on PPC_BOOK3S && CPU_BIG_ENDIAN
> select MPIC
> select PCI
> select PPC_INDIRECT_PCI if PPC32
> diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig
> index 56f2740..b27f40f 100644
> --- a/arch/powerpc/platforms/ps3/Kconfig
> +++ b/arch/powerpc/platforms/ps3/Kconfig
> @@ -1,6 +1,6 @@
> config PPC_PS3
> bool "Sony PS3"
> - depends on PPC64 && PPC_BOOK3S
> + depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
> select PPC_CELL
> select USB_OHCI_LITTLE_ENDIAN
> select USB_OHCI_BIG_ENDIAN_MMIO
> --
> 2.5.1
>

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