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Message-ID: <20180920123306.14772-15-yuehaibing@huawei.com>
Date: Thu, 20 Sep 2018 20:32:58 +0800
From: YueHaibing <yuehaibing@...wei.com>
To: <davem@...emloft.net>, <dmitry.tarnyagin@...kless.no>,
<wg@...ndegger.com>, <mkl@...gutronix.de>,
<michal.simek@...inx.com>, <hsweeten@...ionengravers.com>,
<madalin.bucur@....com>, <pantelis.antoniou@...il.com>,
<claudiu.manoil@....com>, <leoyang.li@....com>,
<linux@...linux.org.uk>, <sammy@...my.net>, <ralf@...ux-mips.org>,
<nico@...xnic.net>, <steve.glendinning@...well.net>,
<f.fainelli@...il.com>, <grygorii.strashko@...com>,
<w-kwok2@...com>, <m-karicheri2@...com>, <t.sailer@...mni.ethz.ch>,
<jreuter@...na.de>, <kys@...rosoft.com>, <haiyangz@...rosoft.com>,
<wei.liu2@...rix.com>, <paul.durrant@...rix.com>,
<arvid.brodin@...en.se>, <pshelar@....org>
CC: <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
<linux-can@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linuxppc-dev@...ts.ozlabs.org>, <linux-mips@...ux-mips.org>,
<linux-omap@...r.kernel.org>, <linux-hams@...r.kernel.org>,
<devel@...uxdriverproject.org>, <linux-usb@...r.kernel.org>,
<xen-devel@...ts.xenproject.org>, <dev@...nvswitch.org>,
YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH net-next 14/22] net: caif: fix return type of ndo_start_xmit function
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t',
which is a typedef for an enum type, so make sure the implementation in
this driver has returns 'netdev_tx_t' value, and change the function
return type to netdev_tx_t.
Found by coccinelle.
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
drivers/net/caif/caif_hsi.c | 10 +++++-----
drivers/net/caif/caif_serial.c | 7 +++++--
drivers/net/caif/caif_spi.c | 6 +++---
drivers/net/caif/caif_virtio.c | 2 +-
net/caif/chnl_net.c | 3 ++-
5 files changed, 16 insertions(+), 12 deletions(-)
diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c
index 433a14b..70c449e 100644
--- a/drivers/net/caif/caif_hsi.c
+++ b/drivers/net/caif/caif_hsi.c
@@ -1006,7 +1006,7 @@ static void cfhsi_aggregation_tout(struct timer_list *t)
cfhsi_start_tx(cfhsi);
}
-static int cfhsi_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t cfhsi_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct cfhsi *cfhsi = NULL;
int start_xfer = 0;
@@ -1014,7 +1014,7 @@ static int cfhsi_xmit(struct sk_buff *skb, struct net_device *dev)
int prio;
if (!dev)
- return -EINVAL;
+ return NETDEV_TX_BUSY;
cfhsi = netdev_priv(dev);
@@ -1048,7 +1048,7 @@ static int cfhsi_xmit(struct sk_buff *skb, struct net_device *dev)
if (WARN_ON(test_bit(CFHSI_SHUTDOWN, &cfhsi->bits))) {
spin_unlock_bh(&cfhsi->lock);
cfhsi_abort_tx(cfhsi);
- return -EINVAL;
+ return NETDEV_TX_BUSY;
}
/* Send flow off if number of packets is above high water mark. */
@@ -1072,7 +1072,7 @@ static int cfhsi_xmit(struct sk_buff *skb, struct net_device *dev)
spin_unlock_bh(&cfhsi->lock);
if (aggregate_ready)
cfhsi_start_tx(cfhsi);
- return 0;
+ return NETDEV_TX_OK;
}
/* Delete inactivity timer if started. */
@@ -1102,7 +1102,7 @@ static int cfhsi_xmit(struct sk_buff *skb, struct net_device *dev)
queue_work(cfhsi->wq, &cfhsi->wake_up_work);
}
- return 0;
+ return NETDEV_TX_OK;
}
static const struct net_device_ops cfhsi_netdevops;
diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c
index a0f954f..acb3264 100644
--- a/drivers/net/caif/caif_serial.c
+++ b/drivers/net/caif/caif_serial.c
@@ -275,7 +275,7 @@ static int handle_tx(struct ser_device *ser)
return tty_wr;
}
-static int caif_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t caif_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ser_device *ser;
@@ -290,7 +290,10 @@ static int caif_xmit(struct sk_buff *skb, struct net_device *dev)
ser->common.flowctrl(ser->dev, OFF);
skb_queue_tail(&ser->head, skb);
- return handle_tx(ser);
+ if (handle_tx(ser))
+ return NETDEV_TX_BUSY;
+
+ return NETDEV_TX_OK;
}
diff --git a/drivers/net/caif/caif_spi.c b/drivers/net/caif/caif_spi.c
index d28a139..9040658 100644
--- a/drivers/net/caif/caif_spi.c
+++ b/drivers/net/caif/caif_spi.c
@@ -486,12 +486,12 @@ static void cfspi_xfer_done_cb(struct cfspi_ifc *ifc)
complete(&cfspi->comp);
}
-static int cfspi_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t cfspi_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct cfspi *cfspi = NULL;
unsigned long flags;
if (!dev)
- return -EINVAL;
+ return NETDEV_TX_BUSY;
cfspi = netdev_priv(dev);
@@ -512,7 +512,7 @@ static int cfspi_xmit(struct sk_buff *skb, struct net_device *dev)
cfspi->cfdev.flowctrl(cfspi->ndev, 0);
}
- return 0;
+ return NETDEV_TX_OK;
}
int cfspi_rxfrm(struct cfspi *cfspi, u8 *buf, size_t len)
diff --git a/drivers/net/caif/caif_virtio.c b/drivers/net/caif/caif_virtio.c
index 2814e0d..f5507db 100644
--- a/drivers/net/caif/caif_virtio.c
+++ b/drivers/net/caif/caif_virtio.c
@@ -519,7 +519,7 @@ static struct buf_info *cfv_alloc_and_copy_to_shm(struct cfv_info *cfv,
}
/* Put the CAIF packet on the virtio ring and kick the receiver */
-static int cfv_netdev_tx(struct sk_buff *skb, struct net_device *netdev)
+static netdev_tx_t cfv_netdev_tx(struct sk_buff *skb, struct net_device *netdev)
{
struct cfv_info *cfv = netdev_priv(netdev);
struct buf_info *buf_info;
diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c
index 13e2ae6..30be426 100644
--- a/net/caif/chnl_net.c
+++ b/net/caif/chnl_net.c
@@ -211,7 +211,8 @@ static void chnl_flowctrl_cb(struct cflayer *layr, enum caif_ctrlcmd flow,
}
}
-static int chnl_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static netdev_tx_t
+chnl_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct chnl_net *priv;
struct cfpkt *pkt = NULL;
--
1.8.3.1
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