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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EDE2BC04E69 for ; Thu, 3 Aug 2023 13:08:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233620AbjHCNIW (ORCPT ); Thu, 3 Aug 2023 09:08:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54174 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229740AbjHCNHl (ORCPT ); Thu, 3 Aug 2023 09:07:41 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89C9D46A0; Thu, 3 Aug 2023 06:05:59 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (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 dfw.source.kernel.org (Postfix) with ESMTPS id 7417A61DA3; Thu, 3 Aug 2023 13:04:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 31721C433CA; Thu, 3 Aug 2023 13:04:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1691067883; bh=fgdLDtvzoKvEDHXTifVWTZq8tUrzSmN4jtEK5Hxiclo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=c+67cp5wLV9zSf9WO7AaGAle2tyyU3vouMHM4twVXd0/YFuxWEz70AonSIOj3NwKX MGcc2405xV5s1qPHDQNJ80jjT5WkCRz8e6bZgXrKJ8zvkWnUXywMPlcLWWDxyvo2R+ Q9o6SUQmGgYYT/7C7b6Tb8J2cIH44ESJKE7mAXMwh+CkU8pUa3XLinVG7w9qSvxmvZ 6O01uqlcsSXYTGZ+4y1E8MQy/MLmECrsit1QH+nUxTGmiaLp9vOduuL8ETx9giOJiy HphUmnCiRo2VchJ0MoEa24fPJZGrqoGRMtBlkSllaq2fTHPvnGY45V5hiVuhbwS008 YLNpIrKpagiVg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Benjamin Gray , Christophe Leroy , Michael Ellerman , Sasha Levin , linuxppc-dev@lists.ozlabs.org Subject: [PATCH AUTOSEL 5.15 2/3] powerpc/kasan: Disable KCOV in KASAN code Date: Thu, 3 Aug 2023 09:04:37 -0400 Message-Id: <20230803130438.641988-2-sashal@kernel.org> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230803130438.641988-1-sashal@kernel.org> References: <20230803130438.641988-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.15.123 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Benjamin Gray [ Upstream commit ccb381e1af1ace292153c88eb1fffa5683d16a20 ] As per the generic KASAN code in mm/kasan, disable KCOV with KCOV_INSTRUMENT := n in the makefile. This fixes a ppc64 boot hang when KCOV and KASAN are enabled. kasan_early_init() gets called before a PACA is initialised, but the KCOV hook expects a valid PACA. Suggested-by: Christophe Leroy Signed-off-by: Benjamin Gray Signed-off-by: Michael Ellerman Link: https://msgid.link/20230710044143.146840-1-bgray@linux.ibm.com Signed-off-by: Sasha Levin --- arch/powerpc/mm/kasan/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/mm/kasan/Makefile b/arch/powerpc/mm/kasan/Makefile index bb1a5408b86b2..8636b17c6a20f 100644 --- a/arch/powerpc/mm/kasan/Makefile +++ b/arch/powerpc/mm/kasan/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 KASAN_SANITIZE := n +KCOV_INSTRUMENT := n obj-$(CONFIG_PPC32) += kasan_init_32.o obj-$(CONFIG_PPC_8xx) += 8xx.o -- 2.40.1