From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7FE622D23A6; Sat, 12 Sep 2026 14:13:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789222427; cv=none; b=HMYvqnuOLLJh2jsd1jmAenci6SkXlrECJQBJInXQprq3u+uyhMWx0OeYyc72XY4lHNGYSysmUKV9NsAzGCMr4WFiQzkr3foeAZx9QYD2OX3QQWj6uZzW0liXzLQnyxarQOxfSB0s223KL3nWTUlkQpfzk+uGsTk1iDx5vWLfJg8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789222427; c=relaxed/simple; bh=/DB5xRXbuV514P9U0qgMrnmmUw18oUCPI7gFCyJfMTI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Vm023EraITXW4RfsepucBb7osHcR5SgnA2mRghPAm6qDNz+xa9YEl+rLS1YvY8jxEX4SZ0NnyZY8JxGg+XBTG3twKGCyXjg6KGoqxPuxRQFIaMI3WfCkE8LfXxI+TfEY32ZVzZ5BY+XS26CW6uTh6jeLJgi51mR2+z2ulK+lgG0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gEmsbumR; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="gEmsbumR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 94BDB1F000FF; Sat, 12 Sep 2026 14:13:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789222426; bh=DXC0LVmp2tncj7YtKdyyWUZCtmWbcLBhN8PWsOJUBkE=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=gEmsbumRWzcpBCt/acIGVPPIN+n66HH9BZjaB7Vb3faX+RlSSxauOOnfxz0dp6yxG lcO4eoiJetxZfL5wJ5Lb1Y+GBddz8/o/3hN5A7yaabFV9L9aU0GdVn+TLrkp6xRou6 OmzTxtA08XGTuNya+s7iDpUM3mT192IiX8yHHQYo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jiawen Wu , Jakub Kicinski , Sasha Levin Subject: [PATCH 6.6 0542/1424] net: libwx: fix Tx L4 checksum Date: Sat, 12 Sep 2026 08:49:34 +0200 Message-ID: <20260912065619.439537047@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065607.279695368@linuxfoundation.org> References: <20260912065607.279695368@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jiawen Wu [ Upstream commit c7d82913d5f9e97860772ee4051eaa66b56a6273 ] The hardware only supports L4 checksum offload for TCP/UDP/SCTP protocol. There was a bug to set Tx checksum flag for the other protocol that results in Tx ring hang. Fix to compute software checksum for these packets. Fixes: 3403960cdf86 ("net: wangxun: libwx add tx offload functions") Signed-off-by: Jiawen Wu Link: https://patch.msgid.link/20250324103235.823096-2-jiawenwu@trustnetic.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/wangxun/libwx/wx_lib.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/wangxun/libwx/wx_lib.c b/drivers/net/ethernet/wangxun/libwx/wx_lib.c index 23dbe4e4b36c0..c27e68e320e62 100644 --- a/drivers/net/ethernet/wangxun/libwx/wx_lib.c +++ b/drivers/net/ethernet/wangxun/libwx/wx_lib.c @@ -1327,6 +1327,7 @@ static void wx_tx_csum(struct wx_ring *tx_ring, struct wx_tx_buffer *first, u8 tun_prot = 0; if (skb->ip_summed != CHECKSUM_PARTIAL) { +csum_failed: if (!(first->tx_flags & WX_TX_FLAGS_HW_VLAN) && !(first->tx_flags & WX_TX_FLAGS_CC)) return; @@ -1420,7 +1421,8 @@ static void wx_tx_csum(struct wx_ring *tx_ring, struct wx_tx_buffer *first, WX_TXD_L4LEN_SHIFT; break; default: - break; + skb_checksum_help(skb); + goto csum_failed; } /* update TX checksum flag */ -- 2.53.0