netdev - [PATCH][net-next] net: move definition of pcpu

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Date:   Fri, 14 Sep 2018 16:00:51 +0800
From:   Li RongQing <lirongqing@...du.com>
To:     netdev@...r.kernel.org
Subject: [PATCH][net-next] net: move definition of pcpu_lstats to header file

pcpu_lstats is defined in several files, so unify them as one
and move to header file

Signed-off-by: Zhang Yu <zhangyu31@...du.com>
Signed-off-by: Li RongQing <lirongqing@...du.com>
---
 drivers/net/loopback.c    |  6 ------
 drivers/net/nlmon.c       |  6 ------
 drivers/net/vsockmon.c    | 14 ++++----------
 include/linux/netdevice.h |  6 ++++++
 4 files changed, 10 insertions(+), 22 deletions(-)

diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index 30612497643c..a7207fa7e451 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -59,12 +59,6 @@
 #include <net/net_namespace.h>
 #include <linux/u64_stats_sync.h>
 
-struct pcpu_lstats {
-	u64			packets;
-	u64			bytes;
-	struct u64_stats_sync	syncp;
-};
-
 /* The higher levels take care of making this non-reentrant (it's
  * called with bh's disabled).
  */
diff --git a/drivers/net/nlmon.c b/drivers/net/nlmon.c
index 4b22955de191..dd0db7534cb3 100644
--- a/drivers/net/nlmon.c
+++ b/drivers/net/nlmon.c
@@ -6,12 +6,6 @@
 #include <linux/if_arp.h>
 #include <net/rtnetlink.h>
 
-struct pcpu_lstats {
-	u64 packets;
-	u64 bytes;
-	struct u64_stats_sync syncp;
-};
-
 static netdev_tx_t nlmon_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	int len = skb->len;
diff --git a/drivers/net/vsockmon.c b/drivers/net/vsockmon.c
index c28bdce14fd5..7bad5c95551f 100644
--- a/drivers/net/vsockmon.c
+++ b/drivers/net/vsockmon.c
@@ -11,12 +11,6 @@
 #define DEFAULT_MTU (VIRTIO_VSOCK_MAX_PKT_BUF_SIZE + \
 		     sizeof(struct af_vsockmon_hdr))
 
-struct pcpu_lstats {
-	u64 rx_packets;
-	u64 rx_bytes;
-	struct u64_stats_sync syncp;
-};
-
 static int vsockmon_dev_init(struct net_device *dev)
 {
 	dev->lstats = netdev_alloc_pcpu_stats(struct pcpu_lstats);
@@ -56,8 +50,8 @@ static netdev_tx_t vsockmon_xmit(struct sk_buff *skb, struct net_device *dev)
 	struct pcpu_lstats *stats = this_cpu_ptr(dev->lstats);
 
 	u64_stats_update_begin(&stats->syncp);
-	stats->rx_bytes += len;
-	stats->rx_packets++;
+	stats->bytes += len;
+	stats->packets++;
 	u64_stats_update_end(&stats->syncp);
 
 	dev_kfree_skb(skb);
@@ -80,8 +74,8 @@ vsockmon_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
 
 		do {
 			start = u64_stats_fetch_begin_irq(&vstats->syncp);
-			tbytes = vstats->rx_bytes;
-			tpackets = vstats->rx_packets;
+			tbytes = vstats->bytes;
+			tpackets = vstats->packets;
 		} while (u64_stats_fetch_retry_irq(&vstats->syncp, start));
 
 		packets += tpackets;
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index e2b3bd750c98..baed5d5088c5 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2382,6 +2382,12 @@ struct pcpu_sw_netstats {
 	struct u64_stats_sync   syncp;
 };
 
+struct pcpu_lstats {
+	u64 packets;
+	u64 bytes;
+	struct u64_stats_sync syncp;
+};
+
 #define __netdev_alloc_pcpu_stats(type, gfp)				\
 ({									\
 	typeof(type) __percpu *pcpu_stats = alloc_percpu_gfp(type, gfp);\
-- 
2.16.2