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 33DBDC4332F for ; Tue, 21 Dec 2021 01:58:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231674AbhLUB6A (ORCPT ); Mon, 20 Dec 2021 20:58:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44434 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231672AbhLUB56 (ORCPT ); Mon, 20 Dec 2021 20:57:58 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A477C06173E; Mon, 20 Dec 2021 17:57:58 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 9704B61355; Tue, 21 Dec 2021 01:57:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2697AC36AEC; Tue, 21 Dec 2021 01:57:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1640051877; bh=Lrz4hRBiMCBvp7sbl+owa5QpcCfbEP43ybDCr9Z1Gbk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UMbyAVo9JLGd2eBTokxinSiynNZh/9eExbFyWblmQcyYgWFZbXhLjtLKZlHs5e1wp pD5uesfs/jxE0PivChtFw7YIqtwLvFSdGX+4GILetW6IjTFs65jgCHFBy/VbJk9JHD L19dJ4Ed89jHdNyIYU3ezvfiDPbx55Jyk++0OCd//kMeenCST3/uCne/R05+U0YE2j +91nrZiwraP+JWt6wX3aWu14mkYolO4Name46mPrHaPD4clAb3q1wibfL6escZhWeT siwtaPMbxK10u0V51pLXH66dibS1aviLTC3FB/5CfOMMnRrYJtVxeGq0dowCrbDEaP 2Lz9/AJOBSGMA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: "Ivan T. Ivanov" , Heiko Stuebner , Sasha Levin , linux@armlinux.org.uk, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org Subject: [PATCH AUTOSEL 5.15 03/29] ARM: rockchip: Use memcpy_toio instead of memcpy on smp bring-up Date: Mon, 20 Dec 2021 20:57:24 -0500 Message-Id: <20211221015751.116328-3-sashal@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211221015751.116328-1-sashal@kernel.org> References: <20211221015751.116328-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Ivan T. Ivanov" [ Upstream commit 423e85e97aaf69e5198bbec6811e3825c8b5019a ] This fixes a potential kernel panic on memcpy when FORTIFY_SOURCE is enabled. Because memory is iomem use appropriate function for accessing it. Signed-off-by: Ivan T. Ivanov Link: https://lore.kernel.org/r/20211116084616.24811-1-iivanov@suse.de Signed-off-by: Heiko Stuebner Signed-off-by: Sasha Levin --- arch/arm/mach-rockchip/platsmp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-rockchip/platsmp.c b/arch/arm/mach-rockchip/platsmp.c index d60856898d97a..5ec58d004b7de 100644 --- a/arch/arm/mach-rockchip/platsmp.c +++ b/arch/arm/mach-rockchip/platsmp.c @@ -189,7 +189,7 @@ static int __init rockchip_smp_prepare_sram(struct device_node *node) rockchip_boot_fn = __pa_symbol(secondary_startup); /* copy the trampoline to sram, that runs during startup of the core */ - memcpy(sram_base_addr, &rockchip_secondary_trampoline, trampoline_sz); + memcpy_toio(sram_base_addr, &rockchip_secondary_trampoline, trampoline_sz); flush_cache_all(); outer_clean_range(0, trampoline_sz); -- 2.34.1