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=-20.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 D929EC433FE for ; Thu, 23 Sep 2021 03:42:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BB70E611B0 for ; Thu, 23 Sep 2021 03:42:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239966AbhIWDoL (ORCPT ); Wed, 22 Sep 2021 23:44:11 -0400 Received: from mail.kernel.org ([198.145.29.99]:42362 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239454AbhIWDmN (ORCPT ); Wed, 22 Sep 2021 23:42:13 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 354DC61250; Thu, 23 Sep 2021 03:40:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1632368411; bh=3pjs7J8x45aNUetkfjAhFIBfeyWD5urVsCkZ80PM/2A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=O4JbFyvH1JjE6D241hoT2Wn7m9R+Q5ppW9jVOhJ19b7rynMD91Ss8fyQrgFG5Adu0 EF+LdpPQKdVq5fQD1ZAw8y+o2qItcE/PjZ/P4CgvKEe72BPsRgZJXkQ71oByMgv6/u Lc/gD5xnxl+Op0d8+TMdUHMJD2RHyYyNjMqMy1XM1+8x6Z6ILO1Nr1szwk+8SCkJvo zohIr51rOqxo0tYG4sgRVfFyLS5F5fAiJIja4AKO7erjjF6Uoma42C1Rdlp2awic89 2i8p5dBA1b1TS0D/U4eusG0BktCxHPph5Zd+/s66dQpaoBgrdv6imgWd4Xu6yn1sfs cqHMgyOWGODXA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Guenter Roeck , Geert Uytterhoeven , Linus Torvalds , Sasha Levin , davem@davemloft.net, kuba@kernel.org, arnd@arndb.de, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 06/13] net: i825xx: Use absolute_pointer for memcpy from fixed memory location Date: Wed, 22 Sep 2021 23:39:52 -0400 Message-Id: <20210923033959.1421662-6-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210923033959.1421662-1-sashal@kernel.org> References: <20210923033959.1421662-1-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: Guenter Roeck [ Upstream commit dff2d13114f0beec448da9b3716204eb34b0cf41 ] gcc 11.x reports the following compiler warning/error. drivers/net/ethernet/i825xx/82596.c: In function 'i82596_probe': arch/m68k/include/asm/string.h:72:25: error: '__builtin_memcpy' reading 6 bytes from a region of size 0 [-Werror=stringop-overread] Use absolute_pointer() to work around the problem. Cc: Geert Uytterhoeven Signed-off-by: Guenter Roeck Reviewed-by: Geert Uytterhoeven Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin --- drivers/net/ethernet/i825xx/82596.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/i825xx/82596.c b/drivers/net/ethernet/i825xx/82596.c index d719668a6684..8efcec305fc5 100644 --- a/drivers/net/ethernet/i825xx/82596.c +++ b/drivers/net/ethernet/i825xx/82596.c @@ -1155,7 +1155,7 @@ struct net_device * __init i82596_probe(int unit) err = -ENODEV; goto out; } - memcpy(eth_addr, (void *) 0xfffc1f2c, ETH_ALEN); /* YUCK! Get addr from NOVRAM */ + memcpy(eth_addr, absolute_pointer(0xfffc1f2c), ETH_ALEN); /* YUCK! Get addr from NOVRAM */ dev->base_addr = MVME_I596_BASE; dev->irq = (unsigned) MVME16x_IRQ_I596; goto found; -- 2.30.2