Re: [PATCH v2] x86: Remove the arch_calc_vm_prot_bits() macro from the uapi

From: Dave Hansen
Date: Wed Sep 06 2023 - 13:03:13 EST


On 9/6/23 09:26, Thomas Huth wrote:
> The arch_calc_vm_prot_bits() macro uses VM_PKEY_BIT0 etc. which are
> not part of the uapi, so the macro is completely useless for userspace.
> It is also hidden behind the CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
> config switch which we shouldn't expose to userspace. Thus let's move
> this macro into a new internal header instead.
>
> Fixes: 8f62c883222c ("x86/mm/pkeys: Add arch-specific VMA protection bits")
> Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx>
> Reviewed-by: Nicolas Schier <nicolas@xxxxxxxxx>
> Signed-off-by: Thomas Huth <thuth@xxxxxxxxxx>

Gah, sorry this got dropped. I went to go throw it in my review queue
and saw your last version in there. I plan to apply it (this time)
shortly after we see -rc1.

In any case:

Acked-by: Dave Hansen <dave.hansen@xxxxxxxxx>