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 39937EFD206 for ; Wed, 25 Feb 2026 08:12:44 +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:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=26Heb3z8+JRGyYR/K9qQ4p1lo9b1s7t7d4idtz27MvU=; b=fMnsVhbi+gt16oYrITEC0+b2Eh WWRWxEiZ9jPM/1kAoiDqHrEuU8wsyzdqAV1F2a5NdklVB2LqoFiLfN/PoFmYg6wPoxF3g15ED3ELO JdCrA6iLjRWEY7trgJ8zUmKjTqsUQ02XbRAZ1WtX/QbpcrSCeBlZU8e05I5Vq/TledEfdk0tWuCjY +vQQemdjSjzFDG9Z3kGv8OB77dbwW04FkfThyDKipNGiB4VblW1a9C03mhsDMgkC64iEdwPhexKwp WQfIxw6G4ZmDdh9Phh2LHUYgC75xqE9atsXsq1qi4wqo1PyCVFFZUX1SrW4kCFcsAdpfx8ht0AzIp hTpvkyBA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vvA0e-00000003Tkt-0I6V; Wed, 25 Feb 2026 08:12:40 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vvA0b-00000003Tj3-1HCp; Wed, 25 Feb 2026 08:12:38 +0000 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 E79E6165C; Wed, 25 Feb 2026 00:12:27 -0800 (PST) Received: from arm.com (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 40DC83F59E; Wed, 25 Feb 2026 00:12:31 -0800 (PST) Date: Wed, 25 Feb 2026 08:12:28 +0000 From: Catalin Marinas To: "Edgecombe, Rick P" Cc: "david@kernel.org" , "broonie@kernel.org" , "akpm@linux-foundation.org" , "debug@rivosinc.com" , "linux-kernel@vger.kernel.org" , "linux-riscv@lists.infradead.org" , "bp@alien8.de" , "dave.hansen@linux.intel.com" , "pjw@kernel.org" , "alex@ghiti.fr" , "aou@eecs.berkeley.edu" , "palmer@dabbelt.com" , "will@kernel.org" , "tglx@kernel.org" , "hpa@zytor.com" , "mingo@redhat.com" , "linux-mm@kvack.org" , "linux-arm-kernel@lists.infradead.org" Subject: Re: [PATCH 4/5] x86: shstk: Use the new common vm_mmap_shadow_stack() helper Message-ID: References: <20260224175800.2500729-1-catalin.marinas@arm.com> <20260224175800.2500729-5-catalin.marinas@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260225_001237_376248_A977991D X-CRM114-Status: GOOD ( 12.07 ) 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 Tue, Feb 24, 2026 at 07:47:14PM +0000, Edgecombe, Rick P wrote: > On Tue, 2026-02-24 at 17:57 +0000, Catalin Marinas wrote: > > Replace part of the x86 alloc_shstk() content with a call to > > vm_mmap_shadow_stack(). > > I ran it through the selftest. It would be nice to have a bit more information > in the log, like that there is no functional change. Otherwise, Good point, I'll add this to the other arch patches as well. > Reviewed-by: Rick Edgecombe > Tested-by: Rick Edgecombe Thanks. -- Catalin