From patchwork Fri Jul 6 13:19:48 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 10511729 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EAE5E6024A for ; Fri, 6 Jul 2018 13:24:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D98DC28623 for ; Fri, 6 Jul 2018 13:24:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CD11828691; Fri, 6 Jul 2018 13:24:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 7E22428623 for ; Fri, 6 Jul 2018 13:24:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=AEihKcP7aM5VzpLvGLkXFibpDr1QPuTQPaajLETbL3s=; b=N4R6xU0eXP8x8eyCzTkk5OvNOQ C0mpgVpBEtDspHZTZDGDGV4BPJWC3s3rNVoEZVNI/EpHdpJejAn7KEsl43Mu9NB1akCfC74cHOpha JmyKLlpUV3EBbNYkQ8KUkg61pp2ernTLXxR2jMbmbc6jjj0L1Pz68CX8GIsDHWxHSuEF/1oVj7GjA wEvmnO6LTG1VuyxVSxCbWi6TpIGiXjPfG7vlt6YSwpDOFF7QhAUMsSJrZ5kQVRX3O2B+iuNIfzRY4 t75PscfAqE7gNtMm1CaIa1iLaEXjkKHXaqAX+m+lZ39j4OVeblpbpvsI6F9AcuKSOv9a+H4e3Ta2F dHqCR1DQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fbQiS-0000Yw-MY; Fri, 06 Jul 2018 13:24:04 +0000 Received: from mail.bootlin.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fbQeu-0006k1-FK for linux-arm-kernel@lists.infradead.org; Fri, 06 Jul 2018 13:20:30 +0000 Received: by mail.bootlin.com (Postfix, from userid 110) id 6607A207F4; Fri, 6 Jul 2018 15:20:01 +0200 (CEST) Received: from localhost (242.171.71.37.rev.sfr.net [37.71.171.242]) by mail.bootlin.com (Postfix) with ESMTPSA id 271702082B; Fri, 6 Jul 2018 15:19:51 +0200 (CEST) From: Gregory CLEMENT To: "David S. Miller" , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH net-next 5/6] net: mvneta: Verify hardware checksum only when offload checksum feature is set Date: Fri, 6 Jul 2018 15:19:48 +0200 Message-Id: <20180706131949.2684-6-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180706131949.2684-1-gregory.clement@bootlin.com> References: <20180706131949.2684-1-gregory.clement@bootlin.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180706_062025_390215_2A33ABA2 X-CRM114-Status: GOOD ( 12.69 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrew Lunn , Jason Cooper , Antoine Tenart , Gregory CLEMENT , Maxime Chevallier , Nadav Haklai , Yelena Krivosheev , Thomas Petazzoni , =?UTF-8?q?Miqu=C3=A8l=20Raynal?= , Marcin Wojtas , Dmitri Epshtein , linux-arm-kernel@lists.infradead.org, Sebastian Hesselbarth MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Yelena Krivosheev If the checksum offload feature is not set, then there is no point to check the status of the hardware. [gregory: extract from a larger patch] Signed-off-by: Yelena Krivosheev Signed-off-by: Gregory CLEMENT --- drivers/net/ethernet/marvell/mvneta.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 12739fb60732..8fc4be238083 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -1716,11 +1716,13 @@ static void mvneta_rx_error(struct mvneta_port *pp, static void mvneta_rx_csum(struct mvneta_port *pp, u32 status, struct sk_buff *skb) { - if ((status & MVNETA_RXD_L3_IP4) && - (status & MVNETA_RXD_L4_CSUM_OK)) { - skb->csum = 0; - skb->ip_summed = CHECKSUM_UNNECESSARY; - return; + if (pp->dev->features & NETIF_F_RXCSUM) { + if ((status & MVNETA_RXD_L3_IP4) && + (status & MVNETA_RXD_L4_CSUM_OK)) { + skb->csum = 0; + skb->ip_summed = CHECKSUM_UNNECESSARY; + return; + } } skb->ip_summed = CHECKSUM_NONE;