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=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 B7EB2C43603 for ; Tue, 10 Dec 2019 19:34:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8F20120828 for ; Tue, 10 Dec 2019 19:34:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="RjyYOYNM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726771AbfLJTeI (ORCPT ); Tue, 10 Dec 2019 14:34:08 -0500 Received: from sv2-smtprelay2.synopsys.com ([149.117.73.133]:51230 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726071AbfLJTeI (ORCPT ); Tue, 10 Dec 2019 14:34:08 -0500 Received: from mailhost.synopsys.com (mdc-mailhost1.synopsys.com [10.225.0.209]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 6D88442D29; Tue, 10 Dec 2019 19:34:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1576006447; bh=4TZWon6MOey0x0LujXjOWRkAZwx8w/0T6xmIv7r2Tb8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=RjyYOYNMoD8iKAfUKpJiAHiwyklIXkyC9WzUf7h3c+OXWyYNWH3R4lFPCdLQOCI+K Ycm2Gz/N2EJwk+lVSVUEH5vrexhyZwpIErUIr4An6p39oupqxJ0BMPCoymG0ghdBiV oQAsfUTucZbDc0Apt2rHoVOptlhW+HPSHQm7t5xVxVK/mXPLeO/CXb+mgYnyLz4Id7 e4P0U1YXqMy5dFQ7oUWlkdP8uep1SvGxIz9emsSrC60M2W6yrWYszzIy+3iVtFLDXU /HOeWKQST8XdD16/OJJG4UbbMazWyAsNhXTVjF+cuAyi11GHMf6XXAJh0Qsb07kaOj D5+E7xvOdhDrg== Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by mailhost.synopsys.com (Postfix) with ESMTP id 06D97A009F; Tue, 10 Dec 2019 19:34:06 +0000 (UTC) From: Jose Abreu To: netdev@vger.kernel.org Cc: Joao Pinto , Jose Abreu , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH net 6/8] net: stmmac: RX buffer size must be 16 byte aligned Date: Tue, 10 Dec 2019 20:33:58 +0100 Message-Id: <9f57eff82b0349f4735007d237dfa644034da5eb.1576005975.git.Jose.Abreu@synopsys.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org We need to align the RX buffer size to at least 16 byte so that IP doesn't mis-behave. This is required by HW. Signed-off-by: Jose Abreu --- Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Cc: Jose Abreu Cc: "David S. Miller" Cc: Maxime Coquelin Cc: netdev@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 8c191e4d35d0..eb31d7fb321c 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -46,7 +46,7 @@ #include "dwxgmac2.h" #include "hwif.h" -#define STMMAC_ALIGN(x) __ALIGN_KERNEL(x, SMP_CACHE_BYTES) +#define STMMAC_ALIGN(x) ALIGN_DOWN(ALIGN_DOWN(x, SMP_CACHE_BYTES), 16) #define TSO_MAX_BUFF_SIZE (SZ_16K - 1) /* Module parameters */ -- 2.7.4