From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A7F78C79F82 for ; Tue, 8 Sep 2026 07:58:05 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id BBA886B0092; Tue, 8 Sep 2026 03:58:04 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id B92DD6B0098; Tue, 8 Sep 2026 03:58:04 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AD0796B0099; Tue, 8 Sep 2026 03:58:04 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 92A456B0092 for ; Tue, 8 Sep 2026 03:58:04 -0400 (EDT) Received: from smtpin09.hostedemail.com (lb01a-stub [10.200.18.249]) by unirelay04.hostedemail.com (Postfix) with ESMTP id 2BDDD1A044A for ; Tue, 8 Sep 2026 07:58:04 +0000 (UTC) X-FDA: 85189841688.09.05BBDC2 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf29.hostedemail.com (Postfix) with ESMTP id 40E4D120004 for ; Tue, 8 Sep 2026 07:58:02 +0000 (UTC) Authentication-Results: imf29.hostedemail.com; dkim=pass header.d=arm.com header.s=foss header.b=Wot4HfEz; spf=pass (imf29.hostedemail.com: domain of kevin.brodsky@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=kevin.brodsky@arm.com; dmarc=pass (policy=none) header.from=arm.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1788854282; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=muMECbO96Q17a8vw7+GcxCDFTKIrG/mBOtBi3cQA3vw=; b=27eQHVNj8ITTG94/NbRUWDBO6AYDRmwdj8aZN8Tg/VWxh2BuJ0OG8NZgBj+O6nwddgZcvq TAwuRFd/wuMkPbTLGk8MlNkRmd65d4rVWStuPpusx34obgAS2JZUxokBwRuYbU2KGpTsia f5cY6H5bCC8dw3Wh2/7kkETzeD1ej8U= ARC-Seal: i=1; a=rsa-sha256; d=hostedemail.com; s=arc-20220608; cv=none; t=1788854282; b=B1ju2pANCSkmwNsLlXLgLtDpx7khC/xb32bJP6zY1C2VAoBgXc4NK4XCexUqEnPFvGQ1iH 3ghg/O5nAyPruGBdbQefzxUnJuz5L2iRXKT3lsReFH2HETP+qzHElONYSxPwBZJp/5lHFL LARqMoJykd57C4IVAxDt0Q0BpNS2+Zc= ARC-Authentication-Results: i=1; imf29.hostedemail.com; dkim=pass header.d=arm.com header.s=foss header.b=Wot4HfEz; spf=pass (imf29.hostedemail.com: domain of kevin.brodsky@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=kevin.brodsky@arm.com; dmarc=pass (policy=none) header.from=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B40361476; Tue, 8 Sep 2026 00:57:57 -0700 (PDT) Received: from [10.57.7.202] (unknown [10.57.7.202]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D52773F7B4; Tue, 8 Sep 2026 00:57:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1788854281; bh=muMECbO96Q17a8vw7+GcxCDFTKIrG/mBOtBi3cQA3vw=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Wot4HfEz7L7Q1yhwW45ocjyTfVDEuEXikMJ5kqcAakvtvEBJPgf7VrrSQ+VR90R66 nQTplq4uplypYc4ur9gFPAllc8RxJ18oJh2EbVsjZ0sqmY7En9vasX7BBaIfw72daz tcrAlaVBIZk7x9aCnwAAI39FOlKwEMbyjHI3frww= Message-ID: Date: Tue, 8 Sep 2026 09:57:50 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC v9 01/25] mm: Introduce kpkeys To: Mike Rapoport Cc: linux-hardening@vger.kernel.org, Andrew Morton , Andy Lutomirski , Catalin Marinas , Dave Hansen , "David Hildenbrand (Arm)" , Jann Horn , Jeff Xu , Joey Gouly , Kees Cook , Linu Cherian , Linus Walleij , Marc Zyngier , Mark Brown , Matthew Wilcox , Maxwell Bland , Peter Zijlstra , Pierre Langlois , =?UTF-8?Q?Pierre-Cl=C3=A9ment_Tosi?= , Quentin Perret , Rick Edgecombe , Ryan Roberts , Vlastimil Babka , Will Deacon , Yang Shi , Yeoreum Yun , linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org, x86@kernel.org, Ira Weiny , Lorenzo Stoakes , Thomas Gleixner References: <20260818-kpkeys-v9-0-743ad31b2c8f@arm.com> <20260818-kpkeys-v9-1-743ad31b2c8f@arm.com> <178877845406.3691569.6930315020588094755.b4-review@b4> <3f6e7678-0784-4ac1-acb4-b128887803c5@arm.com> From: Kevin Brodsky Content-Language: en-GB In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Stat-Signature: jprnpw9q1xca4suh694hncrj6si3nsyy X-Rspamd-Queue-Id: 40E4D120004 X-Rspamd-Server: rspam02 X-Rspam-User: X-HE-Tag: 1788854282-522420 X-HE-Meta: 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 D+tVIAxh 3vlCVys8Q30rhZAHv9iv9c9/QpP8CaARz3OgfqIrPTq+zHQJwppgnvRWZTPJsSV/LLlTsJBYP6P2ohA4b2s7RCJegD9j5xznlIuSUkgNkk8yolPJVIlYccj7pGx0FhIuKjlQbpx0PkpR2AyE8BfFnD4TVkMMVGlGsjZg133WJypW9EByGyHkZrRJwtvaJ1Ql31gJTlJiwQmJi98Iu+UhzgBD5XWFuEm+LNMkq32tWdHCuCCI= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 08/09/2026 08:52, Mike Rapoport wrote: > On Mon, Sep 07, 2026 at 05:49:42PM +0200, Kevin Brodsky wrote: >> On 07/09/2026 12:54, Mike Rapoport wrote: >>>> + >>>> +#include >>>> +#include >>>> +#include >>>> + >>>> +/** >>>> + * KPKEYS_GUARD_NOOP() - define a guard type that does nothing >>> Nit: I'd suggest to drop "define" from all the descriptions, they would >>> read better without it IMHO. >> Fair enough, but if we say just "a guard type that does nothing" is it >> clear that this is a macro defining a type, and not a type itself? > Then maybe "helper to define", like cleanup.h does? Sounds good, will do! - Kevin