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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8EBCAD2F000 for ; Tue, 27 Jan 2026 12:06:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:CC:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=s8DAQ61OS3c7iglhTfU3Mablouz2+HPpWAYSwOSGdrk=; b=q+/sWU1XX33Tb6L6oUxhJ5oWT6 q2vN/NYBr78ZLNrga99fyRqB0bqgj3Apldt854mjNbPCQzlBjiCBX6ZtUOt21tl4Z0XxPvR227s1C KLYGjnFi93L+2ONxxOM/QTkrOdSOWWj5FM/Ga/wJHR8d4wS8+/O12NZ+xxzSydMtIeMEzI4wlBP3u o9an8jAwYhpc8hqjGRQQxQhkXpLSw7iCdglATJrS/fM9EHs1UgDHTPnUv5469P1/O6Yq7/36osUn1 cFG8PDWFvRfIoIiJVDgKv50ae9IqL+sU9eFiU3nLkXbu0dmj1Le4elQw9e3czk31/5kFFf+1Lbyk2 aLCr1BqA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vkhpq-0000000EC0l-1vH1; Tue, 27 Jan 2026 12:06:18 +0000 Received: from sinmsgout01.his.huawei.com ([119.8.177.36]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vkhpo-0000000EBzp-0USB for linux-arm-kernel@lists.infradead.org; Tue, 27 Jan 2026 12:06:18 +0000 dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=s8DAQ61OS3c7iglhTfU3Mablouz2+HPpWAYSwOSGdrk=; b=OxN3MsDGOABCGn8wiFeH2PuIz5IxpUFsa3nKjfW2vpHxJCzf5sYOSie1sZzyuOZSsK4yg+akg gg2NkraQ18mUDMBW/MxBfXYZh4B1rzChKPusChTGOBlpx70pZGI07TbV4sRYQR3e+ni4pUiyKux 0ySwit5hDhz0Z2Xmfu5MAdU= Received: from frasgout.his.huawei.com (unknown [172.18.146.33]) by sinmsgout01.his.huawei.com (SkyGuard) with ESMTPS id 4f0kZf3g1Wz1P6nS; Tue, 27 Jan 2026 20:03:38 +0800 (CST) Received: from mail.maildlp.com (unknown [172.18.224.150]) by frasgout.his.huawei.com (SkyGuard) with ESMTPS id 4f0kcn1wR1zJ46CD; Tue, 27 Jan 2026 20:05:29 +0800 (CST) Received: from dubpeml500005.china.huawei.com (unknown [7.214.145.207]) by mail.maildlp.com (Postfix) with ESMTPS id 252E040539; Tue, 27 Jan 2026 20:06:05 +0800 (CST) Received: from localhost (10.203.177.15) by dubpeml500005.china.huawei.com (7.214.145.207) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Tue, 27 Jan 2026 12:06:04 +0000 Date: Tue, 27 Jan 2026 12:06:02 +0000 From: Jonathan Cameron To: Ryan Roberts CC: Will Deacon , Ard Biesheuvel , Catalin Marinas , Mark Rutland , Linus Torvalds , Oliver Upton , Marc Zyngier , "Dev Jain" , Linu Cherian , , Subject: Re: [PATCH v2 06/13] arm64: mm: Re-implement the __flush_tlb_range_op macro in C Message-ID: <20260127120602.00007d65@huawei.com> In-Reply-To: <20260119172202.1681510-7-ryan.roberts@arm.com> References: <20260119172202.1681510-1-ryan.roberts@arm.com> <20260119172202.1681510-7-ryan.roberts@arm.com> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.203.177.15] X-ClientProxiedBy: lhrpeml100010.china.huawei.com (7.191.174.197) To dubpeml500005.china.huawei.com (7.214.145.207) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260127_040616_713440_F3877625 X-CRM114-Status: UNSURE ( 8.54 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 19 Jan 2026 17:21:53 +0000 Ryan Roberts wrote: > The __flush_tlb_range_op() macro is horrible and has been a previous > source of bugs thanks to multiple expansions of its arguments (see > commit f7edb07ad7c6 ("Fix mmu notifiers for range-based invalidates")). > > Rewrite the thing in C. > > Suggested-by: Linus Torvalds > Co-developed-by: Will Deacon > Signed-off-by: Will Deacon > Signed-off-by: Ryan Roberts Reviewed-by: Jonathan Cameron