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 X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AC13EC433DB for ; Thu, 4 Feb 2021 12:48:11 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3F35F64DF8 for ; Thu, 4 Feb 2021 12:48:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3F35F64DF8 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject: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=oUvx1zBEt3nDpO6ZXmSXq9nxmEF3vcVX9QUdFupWyoM=; b=X9SICoKEphET0RyiFngP095zR Id7OMh8RGsa/2s0SrXT6RHWTmxN+M4O+9oumVHexMJOL5yTphj2MJ8QenET9xzx9A4sN2Y3v9OIuK JtIDBnfJVP87wJfKaVQo5NrrmmfC2LmkWuUamp8WYZLEEKOYPi4ZjvOBesx+s3h/gYwtsw0GglJmK 2WS5IexPA/NPc4EiUdgIWU3S9uQk8Ag0efp3NhcDbzNhE7m/FUvurDzOEYTD4QgbclnedDK3UGdy+ 4Nwl+dvXPoM8L7l5LxsACWNXNI4Tq+MJDPPblmhwaTRL9RjT2znfrn5DTkmaq2UdEIbKt5lFNRmZo rhaHm8+Ug==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1l7e2P-0001ph-BY; Thu, 04 Feb 2021 12:47:09 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1l7e2M-0001ol-86; Thu, 04 Feb 2021 12:47:06 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id BCA6B64F53; Thu, 4 Feb 2021 12:47:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1612442825; bh=o9UP0+59H1eDhBF0AV66BdlEfMuDGDBZkB2njTKjhzQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=WYztO1KE9eobHskzdV7EQAKlPDArW88rIfKrHy865y2k+CRvNisKS477rTxnbOszw DUaxHWy2KkuwQ/E/TPVjPrl7/5lx6Zkfx6SgCTqoFTQLvd+EIYVRmB3gR9UwUiXAGc 5f6h4flGgSiFj/mAOkYs7Zf+uVpXWyygM70A2/JUNh7az+qI/ik9e2ywxONyMwpclC 3yvlhQDLR+udPUh+EP2GGpuow9LMt7x7ybFapG+lbQvUdPGl53+TUxNUONhZ2U03Ej UeOvkghJ926T/YLloCmxo9fe+im7ZTOpVoHTVOXh/m7ogvEWbKWr+f5cSlN4MAHr4/ 7QgNewPXyj1ww== Date: Thu, 4 Feb 2021 12:46:58 +0000 From: Will Deacon To: Lecopzer Chen Subject: Re: [PATCH v2 2/4] arm64: kasan: abstract _text and _end to KERNEL_START/END Message-ID: <20210204124658.GB20468@willie-the-truck> References: <20210109103252.812517-1-lecopzer@gmail.com> <20210109103252.812517-3-lecopzer@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210109103252.812517-3-lecopzer@gmail.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210204_074706_363011_018994E5 X-CRM114-Status: GOOD ( 13.90 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Lecopzer Chen , catalin.marinas@arm.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, tyhicks@linux.microsoft.com, glider@google.com, vincenzo.frascino@arm.com, ardb@kernel.org, yj.chiang@mediatek.com, kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, aryabinin@virtuozzo.com, linux@roeck-us.net, andreyknvl@google.com, broonie@kernel.org, linux-mediatek@lists.infradead.org, dan.j.williams@intel.com, dvyukov@google.com, gustavoars@kernel.org, akpm@linux-foundation.org, robin.murphy@arm.com, rppt@kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Sat, Jan 09, 2021 at 06:32:50PM +0800, Lecopzer Chen wrote: > Arm64 provide defined macro for KERNEL_START and KERNEL_END, > thus replace them by the abstration instead of using _text and _end. > > Signed-off-by: Lecopzer Chen > --- > arch/arm64/mm/kasan_init.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c > index 39b218a64279..fa8d7ece895d 100644 > --- a/arch/arm64/mm/kasan_init.c > +++ b/arch/arm64/mm/kasan_init.c > @@ -218,8 +218,8 @@ static void __init kasan_init_shadow(void) > phys_addr_t pa_start, pa_end; > u64 i; > > - kimg_shadow_start = (u64)kasan_mem_to_shadow(_text) & PAGE_MASK; > - kimg_shadow_end = PAGE_ALIGN((u64)kasan_mem_to_shadow(_end)); > + kimg_shadow_start = (u64)kasan_mem_to_shadow(KERNEL_START) & PAGE_MASK; > + kimg_shadow_end = PAGE_ALIGN((u64)kasan_mem_to_shadow(KERNEL_END)); > > mod_shadow_start = (u64)kasan_mem_to_shadow((void *)MODULES_VADDR); > mod_shadow_end = (u64)kasan_mem_to_shadow((void *)MODULES_END); > @@ -241,7 +241,7 @@ static void __init kasan_init_shadow(void) > clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END); > > kasan_map_populate(kimg_shadow_start, kimg_shadow_end, > - early_pfn_to_nid(virt_to_pfn(lm_alias(_text)))); > + early_pfn_to_nid(virt_to_pfn(lm_alias(KERNEL_START)))); To be honest, I think this whole line is pointless. We should be able to pass NUMA_NO_NODE now that we're not abusing the vmemmap() allocator to populate the shadow. Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel