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 54B04C433EF for ; Thu, 23 Sep 2021 03:41:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3DC626121F for ; Thu, 23 Sep 2021 03:41:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239263AbhIWDmz (ORCPT ); Wed, 22 Sep 2021 23:42:55 -0400 Received: from mail.kernel.org ([198.145.29.99]:42840 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239509AbhIWDlP (ORCPT ); Wed, 22 Sep 2021 23:41:15 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 33AD861038; Thu, 23 Sep 2021 03:39:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1632368384; bh=3pjs7J8x45aNUetkfjAhFIBfeyWD5urVsCkZ80PM/2A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ETusWwqKJyhZ9VYO4WoIywkqJIL0gVxeCg2hcqvz26lck+E+G8V78xzgfPNb77pYf WXME1/uvsjhVsJiaJ750+EqTdoiCYh5iY72ZmAFbsf3B8MrAE+6P15SxMjb68lxNlK mePWjQGnB5DmHDmAXnmfzOa2PgU1+sa90Wn+JAObkNJ424MbCZjNhFFHg9sFECD7ei MqHHfTR4sBN8jZOvxZMyC4qu/6TvgjbjJUjbCYMEOodZv571aomGNWoq4aSqkXcoVK a7hcfY1xImSafrGVnTfSAb06UeHF5lMH8ZGYoG0xvS/mgJG/iAxQz6M45cKolSx1XL YeojLIbO/xDMw== 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 4.19 08/15] net: i825xx: Use absolute_pointer for memcpy from fixed memory location Date: Wed, 22 Sep 2021 23:39:22 -0400 Message-Id: <20210923033929.1421446-8-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210923033929.1421446-1-sashal@kernel.org> References: <20210923033929.1421446-1-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