From: "Arnd Bergmann" <arnd@arndb.de>
To: "Thomas Huth" <thuth@redhat.com>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>,
"Borislav Petkov" <bp@alien8.de>,
"Dave Hansen" <dave.hansen@linux.intel.com>
Cc: x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
"Nicolas Schier" <nicolas@fjasle.eu>,
"Masahiro Yamada" <masahiroy@kernel.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86: Remove the arch_calc_vm_prot_bits() macro from the uapi
Date: Thu, 06 Jul 2023 22:22:07 +0200 [thread overview]
Message-ID: <2d9bb146-e1ec-4fc2-a4bc-e1c67cfda723@app.fastmail.com> (raw)
In-Reply-To: <20230706190217.371721-1-thuth@redhat.com>
On Thu, Jul 6, 2023, at 21:02, 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.
>
> Signed-off-by: Thomas Huth <thuth@redhat.com>
Fixes: 8f62c883222c9 ("x86/mm/pkeys: Add arch-specific VMA protection bits")
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
It looks like this was introduced right after the uapi split,
and probably is the result of an incorrect rebase.
Arnd
next prev parent reply other threads:[~2023-07-06 20:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-06 19:02 [PATCH] x86: Remove the arch_calc_vm_prot_bits() macro from the uapi Thomas Huth
2023-07-06 20:22 ` Arnd Bergmann [this message]
2023-07-06 20:30 ` Dave Hansen
2023-07-06 20:36 ` Arnd Bergmann
2023-07-07 6:48 ` Thomas Huth
2023-07-07 9:29 ` Nicolas Schier
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