From patchwork Tue Oct 15 13:36:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Barker X-Patchwork-Id: 13836456 X-Patchwork-Delegate: geert@linux-m68k.org Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id D131E1AF0B9; Tue, 15 Oct 2024 13:37:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728999459; cv=none; b=q2K8UghvMMlDZKFhfmZVPVBziz6j3SDptGq1ShIXjQxMupIrbt5v2hRLanwJB7oegl/IOyZmr1GPZlfqSLipFKN2gP8apwP5xDjz8ktIjade7H4cAdlo9Pus+ENhzu2mDuexHozY1Lpt9egM/L8WcFMzVaDO4LJhYHIGGwPbwQ8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728999459; c=relaxed/simple; bh=oNh1LBfzKYEMAG2t3CpJgC1JHnKYkQ+eRce0cJyaSYg=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Pr6FTwLncae2ZqCLZvOOYsPRxg6d87+kbvh0GNP8zXK0ILdg/oCWDmDvgjJidMYeNyMDPVVIltaKjl1gACsIDXMKMSXhQa5jBhh5yYuxz+YwGBn6hE34NxE+1ahvuTRKjwLtPLv9whdeAiuHT8pHuGmxfgRhIbfN/XJLM5DKIL8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com; spf=pass smtp.mailfrom=bp.renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=bp.renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bp.renesas.com X-IronPort-AV: E=Sophos;i="6.11,205,1725289200"; d="scan'208";a="221998705" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 15 Oct 2024 22:37:36 +0900 Received: from GBR-5CG2373LKG.adwin.renesas.com (unknown [10.226.93.176]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id A9D774007529; Tue, 15 Oct 2024 22:37:19 +0900 (JST) From: Paul Barker To: Sergey Shtylyov , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Paul Barker , Geert Uytterhoeven , =?utf-8?q?Niklas_S=C3=B6derlu?= =?utf-8?q?nd?= , Biju Das , Claudiu Beznea , netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [net-next PATCH v2 07/10] net: ravb: Simplify UDP TX checksum offload Date: Tue, 15 Oct 2024 14:36:31 +0100 Message-Id: <20241015133634.193-8-paul.barker.ct@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20241015133634.193-1-paul.barker.ct@bp.renesas.com> References: <20241015133634.193-1-paul.barker.ct@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-renesas-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The GbEth IP will pass through a zero UDP checksum without asserting any error flags so we do not need to resort to software checksum calculation in this case. Reviewed-by: Sergey Shtylyov Signed-off-by: Paul Barker --- drivers/net/ethernet/renesas/ravb_main.c | 11 +---------- 1 file changed, 1 insertion(+), 10 deletions(-) diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index ca8f785b96b4..80c0d36bffcb 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2075,20 +2075,11 @@ static bool ravb_can_tx_csum_gbeth(struct sk_buff *skb) switch (ip->protocol) { case IPPROTO_TCP: - break; case IPPROTO_UDP: - /* If the checksum value in the UDP header field is 0, TOE does - * not calculate checksum for UDP part of this frame as it is - * optional function as per standards. - */ - if (udp_hdr(skb)->check == 0) - return false; - break; + return true; default: return false; } - - return true; } /* Packet transmit function for Ethernet AVB */