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

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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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