From: Arnd Bergmann <arnd@arndb.de>
To: Mark Rutland <mark.rutland@arm.com>
Cc: Linux ARM <linux-arm-kernel@lists.infradead.org>,
Catalin Marinas <catalin.marinas@arm.com>,
cdall@kernel.org, drjones@redhat.com,
kvmarm@lists.cs.columbia.edu,
linux-arch <linux-arch@vger.kernel.org>,
Marc Zyngier <marc.zyngier@arm.com>,
Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Will Deacon <will.deacon@arm.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Adam Wallis <awallis@codeaurora.org>,
Kernel Hardening <kernel-hardening@lists.openwall.com>
Subject: Re: [PATCHv3 06/11] asm-generic: mm_hooks: allow hooks to be overridden individually
Date: Tue, 17 Apr 2018 21:56:02 +0200 [thread overview]
Message-ID: <CAK8P3a3SVhW1ByQOtxw7JG8i3wWU5opdycfSCTbW=GCFvBJmQg@mail.gmail.com> (raw)
In-Reply-To: <20180417183735.56985-7-mark.rutland@arm.com>
On Tue, Apr 17, 2018 at 8:37 PM, Mark Rutland <mark.rutland@arm.com> wrote:
> Currently, an architecture must either implement all of the mm hooks
> itself, or use all of those provided by the asm-generic implementation.
> When an architecture only needs to override a single hook, it must copy
> the stub implementations from the asm-generic version.
>
> To avoid this repetition, allow each hook to be overridden indiviually,
> by placing each under an #ifndef block. As architectures providing their
> own hooks can't include this file today, this shouldn't adversely affect
> any existing hooks.
>
> Signed-off-by: Mark Rutland <mark.rutland@arm.com>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: linux-arch@vger.kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
next prev parent reply other threads:[~2018-04-17 19:56 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-17 18:37 [PATCHv3 00/11] ARMv8.3 pointer authentication userspace support Mark Rutland
2018-04-17 18:37 ` [PATCHv3 01/11] arm64: add pointer authentication register bits Mark Rutland
2018-04-17 18:37 ` [PATCHv3 02/11] arm64/kvm: consistently handle host HCR_EL2 flags Mark Rutland
2018-04-27 9:51 ` Christoffer Dall
2018-04-27 10:13 ` Mark Rutland
2018-04-17 18:37 ` [PATCHv3 03/11] arm64/kvm: hide ptrauth from guests Mark Rutland
2018-04-18 13:19 ` Andrew Jones
2018-04-18 13:47 ` Mark Rutland
2018-04-27 9:51 ` Christoffer Dall
2018-04-17 18:37 ` [PATCHv3 04/11] arm64: Don't trap host pointer auth use to EL2 Mark Rutland
2018-04-27 9:52 ` Christoffer Dall
2018-04-17 18:37 ` [PATCHv3 05/11] arm64/cpufeature: detect pointer authentication Mark Rutland
2018-04-17 18:37 ` [PATCHv3 06/11] asm-generic: mm_hooks: allow hooks to be overridden individually Mark Rutland
2018-04-17 19:56 ` Arnd Bergmann [this message]
2018-04-18 11:38 ` Mark Rutland
2018-04-17 18:37 ` [PATCHv3 07/11] arm64: add basic pointer authentication support Mark Rutland
2018-04-25 11:23 ` Catalin Marinas
2018-04-27 10:27 ` Mark Rutland
2018-04-17 18:37 ` [PATCHv3 08/11] arm64: expose user PAC bit positions via ptrace Mark Rutland
2018-04-17 18:37 ` [PATCHv3 09/11] arm64: perf: strip PAC when unwinding userspace Mark Rutland
2018-04-17 18:37 ` [PATCHv3 10/11] arm64: enable pointer authentication Mark Rutland
2018-04-17 18:37 ` [PATCHv3 11/11] arm64: docs: document " Mark Rutland
2018-04-22 8:05 ` Pavel Machek
2018-04-22 8:47 ` Marc Zyngier
2018-04-22 9:00 ` Pavel Machek
2018-04-25 12:27 ` Catalin Marinas
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