[PATCH RESEND 1/2] prctl: Generalize PR_SET_MDWE support check to be per-arch

[Helge Deller]

On 2/27/24 11:24, Russell King (Oracle) wrote:
> On Mon, Feb 26, 2024 at 05:35:41PM -0800, Zev Weiss wrote:
>> There exist systems other than PARISC where MDWE may not be feasible
>> to support; rather than cluttering up the generic code with additional
>> arch-specific logic let's add a generic function for checking MDWE
>> support and allow each arch to override it as needed.
>>
>> Signed-off-by: Zev Weiss <zev at bewilderbeest.net>
>> Cc: <stable at vger.kernel.org> # v6.3+
>
> PA-RISC folk need to ack/review-by this patch.

I'm fine with patch 1/2:
Acked-by: Helge Deller <deller at gmx.de> # parisc

> Alternatively, it needs
> to be restructured to add the arch_memory_deny_write_exec_supported()
> override without touching the PA-RISC code, which then makes the Arm
> patch independent of the status of the PA-RISC patch. That will allow
> the Arm issue to be solved even if an ack is not forthcoming for the
> PA-RISC parts.
>> Alternatively, I wonder whether akpm would be willing to pick up this
> patch set as-is.

I have no preference, but I think both patches should be pushed
together via arm tree or akpm.

Helge