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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A2206C433F5 for ; Mon, 4 Oct 2021 13:02:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8CA0161B4E for ; Mon, 4 Oct 2021 13:02:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234642AbhJDNEM (ORCPT ); Mon, 4 Oct 2021 09:04:12 -0400 Received: from mail.kernel.org ([198.145.29.99]:60936 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234210AbhJDNCe (ORCPT ); Mon, 4 Oct 2021 09:02:34 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3A25F61401; Mon, 4 Oct 2021 12:59:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1633352355; bh=1VxuVWMkq+9y+Pxn9uk7IiZaHWUWMStZppI6flE8U7U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YuNlerLBEHuzIdjiSOJbirOBqr92dYMs9WPqcju+QoX3bCXPNTabUNfD1Tq5aIBa9 +p8Qdd538W/y56nMXUI4T4vm7lxPfapldI0PLQCvD1rV/8dOi2y94BlDAg5315ggys USP1TLG+0nf16VujSXZtQckT/fKJZg39ZmAp66ys= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Geert Uytterhoeven , Guenter Roeck , Linus Torvalds , Sasha Levin Subject: [PATCH 4.14 29/75] net: i825xx: Use absolute_pointer for memcpy from fixed memory location Date: Mon, 4 Oct 2021 14:52:04 +0200 Message-Id: <20211004125032.491158014@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211004125031.530773667@linuxfoundation.org> References: <20211004125031.530773667@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 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; -- 2.33.0