netdev - [PATCH v3 17/22] fjes: force_close

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Message-Id: <1440145778-15941-17-git-send-email-izumi.taku@jp.fujitsu.com>
Date:	Fri, 21 Aug 2015 17:29:33 +0900
From:	Taku Izumi <izumi.taku@...fujitsu.com>
To:	netdev@...r.kernel.org, davem@...emloft.net
Cc:	platform-driver-x86@...r.kernel.org, dvhart@...radead.org,
	rkhan@...hat.com, alexander.h.duyck@...hat.com,
	linux-acpi@...r.kernel.org, joe@...ches.com,
	sergei.shtylyov@...entembedded.com, stephen@...workplumber.org,
	yasu.isimatu@...il.com, Taku Izumi <izumi.taku@...fujitsu.com>
Subject: [PATCH v3 17/22] fjes: force_close_task

This patch adds force_close_task.
This task is used to close network device forcibly.

Signed-off-by: Taku Izumi <izumi.taku@...fujitsu.com>
---
 drivers/net/fjes/fjes.h      |  1 +
 drivers/net/fjes/fjes_main.c | 13 +++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/drivers/net/fjes/fjes.h b/drivers/net/fjes/fjes.h
index 1743dbb..d31d4c3 100644
--- a/drivers/net/fjes/fjes.h
+++ b/drivers/net/fjes/fjes.h
@@ -47,6 +47,7 @@ struct fjes_adapter {
 	unsigned long rx_last_jiffies;
 	bool unset_rx_last;
 
+	struct work_struct force_close_task;
 	bool force_reset;
 	bool open_guard;
 
diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c
index 5fce33d..caecfb3 100644
--- a/drivers/net/fjes/fjes_main.c
+++ b/drivers/net/fjes/fjes_main.c
@@ -54,6 +54,7 @@ static void fjes_free_resources(struct fjes_adapter *);
 static netdev_tx_t fjes_xmit_frame(struct sk_buff *, struct net_device *);
 static void fjes_raise_intr_rxdata_task(struct work_struct *);
 static void fjes_tx_stall_task(struct work_struct *);
+static void fjes_force_close_task(struct work_struct *);
 static irqreturn_t fjes_intr(int, void*);
 static struct rtnl_link_stats64 *
 fjes_get_stats64(struct net_device *, struct rtnl_link_stats64 *);
@@ -492,6 +493,17 @@ static void fjes_tx_stall_task(struct work_struct *work)
 	queue_work(adapter->txrx_wq, &adapter->tx_stall_task);
 }
 
+static void fjes_force_close_task(struct work_struct *work)
+{
+	struct fjes_adapter *adapter = container_of(work,
+			struct fjes_adapter, force_close_task);
+	struct net_device *netdev = adapter->netdev;
+
+	rtnl_lock();
+	dev_close(netdev);
+	rtnl_unlock();
+}
+
 static void fjes_raise_intr_rxdata_task(struct work_struct *work)
 {
 	struct fjes_adapter *adapter = container_of(work,
@@ -1003,6 +1015,7 @@ static int fjes_probe(struct platform_device *plat_dev)
 	if (err)
 		goto err_free_netdev;
 
+	INIT_WORK(&adapter->force_close_task, fjes_force_close_task);
 	adapter->force_reset = false;
 	adapter->open_guard = false;
 
-- 
1.8.3.1

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