From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id CCEFE30E0E4 for ; Wed, 25 Feb 2026 08:12:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772007156; cv=none; b=awmCf7w+Jkw91OKZMVoEqJO4xvEcGvJ505S/tz2cYiKesK5b8cMb0YpYix0/OiW43c3xTYDhBpd2eUERZZg35hG7EMkpV6z/E1uaw9+CSFRZFfo8fcOSu5dGBrZzvSk7gdRJEOl83lN99zQoUfZurpz2pShSbBcJCtCRO+V8QUo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772007156; c=relaxed/simple; bh=btrjvAprUI3zUCwpMoAImvH9KZC2dBGTPEZIM2FKZKg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=QjCKEcC56nIExy6ifzPm9MxZJ3gv2iCLBeanrUpBCjEGQBEngP3pLHcuqBY+xNnHKeb0JXrWncuWZgb0hG4kYR3Xnv3t6shTcRNcDShICt3cAC7x9nc2NsR40KuJ5DoGOM7MpqcTFfNT8R85zZROHfxxbDWxM5xJCoSf0YiBz2s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=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 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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: 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