[PATCH] arm64: Kconfig: Make ARM64_PSEUDO_NMI depend on BROKEN for now

[PATCH] arm64: Kconfig: Make ARM64_PSEUDO_NMI depend on BROKEN for now

[Will Deacon]

Although we merged support for pseudo-nmi using interrupt priority
masking in 5.1, we've since uncovered a number of non-trivial issues
with the implementation. Although there are patches pending to address
these problems, we're facing issues that prevent us from merging them at
this current time:

  https://lkml.kernel.org/r/1556553607-46531-1-git-send-email-julien.thierry@arm.com

For now, simply mark this optional feature as BROKEN in the hope that we
can fix things properly in the near future.

Cc: <stable@vger.kernel.org> # 5.1
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/arm64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 6a9544606da3..f6275c265d41 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1422,6 +1422,7 @@ config ARM64_MODULE_PLTS
 
 config ARM64_PSEUDO_NMI
 	bool "Support for NMI-like interrupts"
+	depends on BROKEN # 1556553607-46531-1-git-send-email-julien.thierry@arm.com
 	select CONFIG_ARM_GIC_V3
 	help
 	  Adds support for mimicking Non-Maskable Interrupts through the use of
-- 
2.11.0

Re: [PATCH] arm64: Kconfig: Make ARM64_PSEUDO_NMI depend on BROKEN for now

[Marc Zyngier]

On 24/05/2019 14:27, Will Deacon wrote:
> Although we merged support for pseudo-nmi using interrupt priority
> masking in 5.1, we've since uncovered a number of non-trivial issues
> with the implementation. Although there are patches pending to address
> these problems, we're facing issues that prevent us from merging them at
> this current time:
> 
>   https://lkml.kernel.org/r/1556553607-46531-1-git-send-email-julien.thierry@arm.com
> 
> For now, simply mark this optional feature as BROKEN in the hope that we
> can fix things properly in the near future.
> 
> Cc: <stable@vger.kernel.org> # 5.1
> Cc: Marc Zyngier <marc.zyngier@arm.com>
> Cc: Julien Thierry <julien.thierry@arm.com>
> Signed-off-by: Will Deacon <will.deacon@arm.com>
> ---
>  arch/arm64/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 6a9544606da3..f6275c265d41 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -1422,6 +1422,7 @@ config ARM64_MODULE_PLTS
>  
>  config ARM64_PSEUDO_NMI
>  	bool "Support for NMI-like interrupts"
> +	depends on BROKEN # 1556553607-46531-1-git-send-email-julien.thierry@arm.com
>  	select CONFIG_ARM_GIC_V3
>  	help
>  	  Adds support for mimicking Non-Maskable Interrupts through the use of
> 

Acked-by: Marc Zyngier <marc.zyngier@arm.com>

	M.
-- 
Jazz is not dead. It just smells funny...