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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33FFEC433FE for ; Mon, 16 May 2022 20:52:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347095AbiEPUv6 (ORCPT ); Mon, 16 May 2022 16:51:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39270 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1348553AbiEPUvQ (ORCPT ); Mon, 16 May 2022 16:51:16 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DBE4E2AE09 for ; Mon, 16 May 2022 13:26:42 -0700 (PDT) Received: from gallifrey.ext.pengutronix.de ([2001:67c:670:201:5054:ff:fe8d:eefb] helo=bjornoya.blackshift.org) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nqhIf-0006A1-0i for linux-can@vger.kernel.org; Mon, 16 May 2022 22:26:41 +0200 Received: from dspam.blackshift.org (localhost [127.0.0.1]) by bjornoya.blackshift.org (Postfix) with SMTP id DCB1E7FB59 for ; Mon, 16 May 2022 20:26:37 +0000 (UTC) Received: from hardanger.blackshift.org (unknown [172.20.34.65]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by bjornoya.blackshift.org (Postfix) with ESMTPS id 83E297FB4F; Mon, 16 May 2022 20:26:37 +0000 (UTC) Received: from blackshift.org (localhost [::1]) by hardanger.blackshift.org (OpenSMTPD) with ESMTP id 299e40d6; Mon, 16 May 2022 20:26:35 +0000 (UTC) From: Marc Kleine-Budde To: netdev@vger.kernel.org Cc: davem@davemloft.net, kuba@kernel.org, linux-can@vger.kernel.org, kernel@pengutronix.de, Vincent Mailhol , Marc Kleine-Budde Subject: [PATCH net-next 6/9] can: slcan: slc_xmit(): use can_dropped_invalid_skb() instead of manual check Date: Mon, 16 May 2022 22:26:22 +0200 Message-Id: <20220516202625.1129281-7-mkl@pengutronix.de> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220516202625.1129281-1-mkl@pengutronix.de> References: <20220516202625.1129281-1-mkl@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 2001:67c:670:201:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-can@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-can@vger.kernel.org From: Vincent Mailhol slcan does a manual check in slc_xmit() to verify if the skb is valid. This check is incomplete, use instead can_dropped_invalid_skb(). Link: https://lore.kernel.org/all/20220514141650.1109542-2-mailhol.vincent@wanadoo.fr Signed-off-by: Vincent Mailhol Signed-off-by: Marc Kleine-Budde --- drivers/net/can/slcan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c index ec294d0c5722..64a3aee8a7da 100644 --- a/drivers/net/can/slcan.c +++ b/drivers/net/can/slcan.c @@ -359,8 +359,8 @@ static netdev_tx_t slc_xmit(struct sk_buff *skb, struct net_device *dev) { struct slcan *sl = netdev_priv(dev); - if (skb->len != CAN_MTU) - goto out; + if (can_dropped_invalid_skb(dev, skb)) + return NETDEV_TX_OK; spin_lock(&sl->lock); if (!netif_running(dev)) { -- 2.35.1