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=-8.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=unavailable 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 8866AC43331 for ; Thu, 26 Mar 2020 12:33:56 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 4022120409 for ; Thu, 26 Mar 2020 12:33:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4022120409 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 48p4D22kY6zDqJs for ; Thu, 26 Mar 2020 23:33:54 +1100 (AEDT) Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 48p3cc1nYdzDqkJ for ; Thu, 26 Mar 2020 23:06:40 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Received: by ozlabs.org (Postfix, from userid 1034) id 48p3cb04HBz9sSV; Thu, 26 Mar 2020 23:06:38 +1100 (AEDT) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: af92bad615be75c6c0d1b1c5b48178360250a187 In-Reply-To: <4e7b56865e01569058914c991143f5961b5d4719.1583507333.git.christophe.leroy@c-s.fr> To: Christophe Leroy , Benjamin Herrenschmidt , Paul Mackerras From: Michael Ellerman Subject: Re: [PATCH] powerpc/kasan: Fix kasan_remap_early_shadow_ro() Message-Id: <48p3cb04HBz9sSV@ozlabs.org> Date: Thu, 26 Mar 2020 23:06:38 +1100 (AEDT) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Fri, 2020-03-06 at 15:09:40 UTC, Christophe Leroy wrote: > At the moment kasan_remap_early_shadow_ro() does nothing, because > k_end is 0 and k_cur < 0 is always true. > > Change the test to k_cur != k_end, as done in > kasan_init_shadow_page_tables() > > Signed-off-by: Christophe Leroy > Fixes: cbd18991e24f ("powerpc/mm: Fix an Oops in kasan_mmu_init()") > Cc: stable@vger.kernel.org Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/af92bad615be75c6c0d1b1c5b48178360250a187 cheers