Re: [PATCH] irq: make SPARSE_IRQ an optionally hidden option

From: Russell King - ARM Linux
Date: Sat Feb 04 2012 - 06:33:57 EST


So that everyone who received this patch knows...

I've just pulled Rob's series, which includes this patch, into a stable
branch in my tree and it is my intention to send this during the 3.4
merge window. This means that there is a patch in my tree which touches
other architectures' Kconfig files.

If there's any objections, please let me know asap.

Thanks.

On Wed, Jan 25, 2012 at 08:58:47PM -0600, Rob Herring wrote:
> From: Rob Herring <rob.herring@xxxxxxxxxxx>
>
> On ARM, we don't want SPARSE_IRQ to be a user visible option. Make
> SPARSE_IRQ visible based on MAY_HAVE_SPARSE_IRQ instead of depending
> on HAVE_SPARSE_IRQ.
>
> With this, SPARSE_IRQ is not visible on C6X and ARM.
>
> Signed-off-by: Rob Herring <rob.herring@xxxxxxxxxxx>
> Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
> Cc: Mark Salter <msalter@xxxxxxxxxx>
> Cc: Aurelien Jacquiot <a-jacquiot@xxxxxx>
> Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
> Cc: Paul Mackerras <paulus@xxxxxxxxx>
> Cc: Paul Mundt <lethal@xxxxxxxxxxxx>
> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Cc: Ingo Molnar <mingo@xxxxxxxxxx>
> Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> Cc: linux-c6x-dev@xxxxxxxxxxxxx
> Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
> Cc: linux-sh@xxxxxxxxxxxxxxx
> ---
>
> This is part of an irq include consolidation series for ARM:
>
> http://www.spinics.net/lists/arm-kernel/msg156492.html
>
> Rob
>
> arch/arm/Kconfig | 1 -
> arch/c6x/Kconfig | 2 +-
> arch/powerpc/Kconfig | 2 +-
> arch/sh/Kconfig | 2 +-
> arch/x86/Kconfig | 1 -
> kernel/irq/Kconfig | 5 ++---
> 6 files changed, 5 insertions(+), 8 deletions(-)
>
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index 24626b0..30e7840 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -28,7 +28,6 @@ config ARM
> select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
> select HAVE_C_RECORDMCOUNT
> select HAVE_GENERIC_HARDIRQS
> - select HAVE_SPARSE_IRQ
> select GENERIC_IRQ_SHOW
> select CPU_PM if (SUSPEND || CPU_IDLE)
> select GENERIC_PCI_IOMAP
> diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
> index 26e67f0..2f58c61 100644
> --- a/arch/c6x/Kconfig
> +++ b/arch/c6x/Kconfig
> @@ -11,7 +11,7 @@ config TMS320C6X
> select HAVE_DMA_API_DEBUG
> select HAVE_GENERIC_HARDIRQS
> select HAVE_MEMBLOCK
> - select HAVE_SPARSE_IRQ
> + select SPARSE_IRQ
> select OF
> select OF_EARLY_FLATTREE
>
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index 1919634..06c1cf0 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -133,7 +133,7 @@ config PPC
> select HAVE_REGS_AND_STACK_ACCESS_API
> select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
> select HAVE_GENERIC_HARDIRQS
> - select HAVE_SPARSE_IRQ
> + select MAY_HAVE_SPARSE_IRQ
> select IRQ_PER_CPU
> select GENERIC_IRQ_SHOW
> select GENERIC_IRQ_SHOW_LEVEL
> diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
> index 3c8db65..21b82a8 100644
> --- a/arch/sh/Kconfig
> +++ b/arch/sh/Kconfig
> @@ -22,7 +22,7 @@ config SUPERH
> select HAVE_SYSCALL_TRACEPOINTS
> select HAVE_REGS_AND_STACK_ACCESS_API
> select HAVE_GENERIC_HARDIRQS
> - select HAVE_SPARSE_IRQ
> + select MAY_HAVE_SPARSE_IRQ
> select IRQ_FORCED_THREADING
> select RTC_LIB
> select GENERIC_ATOMIC64
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index 864cc6e..fb2da44 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -69,7 +69,6 @@ config X86
> select HAVE_ARCH_JUMP_LABEL
> select HAVE_TEXT_POKE_SMP
> select HAVE_GENERIC_HARDIRQS
> - select HAVE_SPARSE_IRQ
> select SPARSE_IRQ
> select GENERIC_FIND_FIRST_BIT
> select GENERIC_IRQ_PROBE
> diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
> index 5a38bf4..1f2dece 100644
> --- a/kernel/irq/Kconfig
> +++ b/kernel/irq/Kconfig
> @@ -13,7 +13,7 @@ config GENERIC_HARDIRQS
> # Options selectable by the architecture code
>
> # Make sparse irq Kconfig switch below available
> -config HAVE_SPARSE_IRQ
> +config MAY_HAVE_SPARSE_IRQ
> bool
>
> # Enable the generic irq autoprobe mechanism
> @@ -61,8 +61,7 @@ config IRQ_FORCED_THREADING
> bool
>
> config SPARSE_IRQ
> - bool "Support sparse irq numbering"
> - depends on HAVE_SPARSE_IRQ
> + bool "Support sparse irq numbering" if MAY_HAVE_SPARSE_IRQ
> ---help---
>
> Sparse irq numbering is useful for distro kernels that want
> --
> 1.7.5.4
>
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