From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 19 Sep 2022 10:03:27 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1oaBkV-009OG9-JL for lore@lore.pengutronix.de; Mon, 19 Sep 2022 10:03:27 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oaBkT-0000Zc-7X for lore@pengutronix.de; Mon, 19 Sep 2022 10:03:26 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To: Cc:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=hAURfsRTRTU/nWZKb24NnxbYh60vObKJX0+v4lD5E4s=; b=uDJnTJyuFDjROIU4wDMCMYG0f1 KA+mnN2uKXut0ObEbhfLIi/e85bmw7oovCakkegogI3kZOpWk9MgVgYl6Tnk5vGZNDy04PVbHvn/g FUVys8sTGvfOxWDN0Ek1klD8Ke1wZybpWoOHru+btO9TLz6VllcTRb3/lUrEYgu2K7C/0f8RuYDZt ZRsI2oosTMIcUl16mdZtjh7BBDH3IZNLFmJowlYH9Z1ysWMkeyPPvDW8JNJBSOwsp3oRQABEFxQPf /rC+4U1TUjVv90D/xBOztix46sIQJewM8FbyDDc5HV58DZor6mmNjGTKu2yBhBSTmxeRDMDXhDDXs XrNFHQXQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oaBit-009fUk-2Y; Mon, 19 Sep 2022 08:01:47 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oaBik-009fOS-3o for barebox@lists.infradead.org; Mon, 19 Sep 2022 08:01:39 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oaBii-0008L1-DN; Mon, 19 Sep 2022 10:01:36 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1oaBij-001cXR-3o; Mon, 19 Sep 2022 10:01:35 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1oaBig-003ges-Dd; Mon, 19 Sep 2022 10:01:34 +0200 From: Sascha Hauer To: Barebox List Date: Mon, 19 Sep 2022 10:01:25 +0200 Message-Id: <20220919080133.877651-2-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220919080133.877651-1-s.hauer@pengutronix.de> References: <20220919080133.877651-1-s.hauer@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220919_010138_196213_A4DEF86E X-CRM114-Status: GOOD ( 12.09 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.8 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 1/9] net: tap: Allocate own receive buffer X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) Use a driver private buffer as network receive buffer rather than the globally allocated ones which will be removed soon. Signed-off-by: Sascha Hauer --- drivers/net/tap.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/net/tap.c b/drivers/net/tap.c index 1fbfa085b1..8a659c125e 100644 --- a/drivers/net/tap.c +++ b/drivers/net/tap.c @@ -15,6 +15,7 @@ struct tap_priv { int fd; char *name; + char *rx_buf; }; static int tap_eth_send(struct eth_device *edev, void *packet, int length) @@ -30,10 +31,10 @@ static int tap_eth_rx(struct eth_device *edev) struct tap_priv *priv = edev->priv; int length; - length = linux_read_nonblock(priv->fd, NetRxPackets[0], PKTSIZE); + length = linux_read_nonblock(priv->fd, priv->rx_buf, PKTSIZE); if (length > 0) - net_receive(edev, NetRxPackets[0], length); + net_receive(edev, priv->rx_buf, length); return 0; } @@ -73,6 +74,8 @@ static int tap_probe(struct device_d *dev) goto out; } + priv->rx_buf = xmalloc(PKTSIZE); + edev = xzalloc(sizeof(struct eth_device)); edev->priv = priv; edev->parent = dev; -- 2.30.2