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authorTobias Klauser <tklauser@distanz.ch>2017-01-18 19:45:01 +0300
committerDavid S. Miller <davem@davemloft.net>2017-01-19 01:22:49 +0300
commit4a7c972644c1151f6dd34ff4b5f7eacb239e22ee (patch)
tree5a712df870eac9710464921125246365c542521a /drivers/net/ethernet/realtek
parent9520ed8fb8410dcb6babf751561a08f73ca03812 (diff)
downloadlinux-4a7c972644c1151f6dd34ff4b5f7eacb239e22ee.tar.xz
net: Remove usage of net_device last_rx member
The network stack no longer uses the last_rx member of struct net_device since the bonding driver switched to use its own private last_rx in commit 9f242738376d ("bonding: use last_arp_rx in slave_last_rx()"). However, some drivers still (ab)use the field for their own purposes and some driver just update it without actually using it. Previously, there was an accompanying comment for the last_rx member added in commit 4dc89133f49b ("net: add a comment on netdev->last_rx") which asked drivers not to update is, unless really needed. However, this commend was removed in commit f8ff080dacec ("bonding: remove useless updating of slave->dev->last_rx"), so some drivers added later on still did update last_rx. Remove all usage of last_rx and switch three drivers (sky2, atp and smc91c92_cs) which actually read and write it to use their own private copy in netdev_priv. Compile-tested with allyesconfig and allmodconfig on x86 and arm. Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Jay Vosburgh <j.vosburgh@gmail.com> Cc: Veaceslav Falico <vfalico@gmail.com> Cc: Andy Gospodarek <andy@greyhouse.net> Cc: Mirko Lindner <mlindner@marvell.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Acked-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jay Vosburgh <jay.vosburgh@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/realtek')
-rw-r--r--drivers/net/ethernet/realtek/atp.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/net/ethernet/realtek/atp.c b/drivers/net/ethernet/realtek/atp.c
index 570ed3bd3cbf..9bcd4aefc9c5 100644
--- a/drivers/net/ethernet/realtek/atp.c
+++ b/drivers/net/ethernet/realtek/atp.c
@@ -170,7 +170,7 @@ struct net_local {
spinlock_t lock;
struct net_device *next_module;
struct timer_list timer; /* Media selection timer. */
- long last_rx_time; /* Last Rx, in jiffies, to handle Rx hang. */
+ unsigned long last_rx_time; /* Last Rx, in jiffies, to handle Rx hang. */
int saved_tx_size;
unsigned int tx_unit_busy:1;
unsigned char re_tx, /* Number of packet retransmissions. */
@@ -668,11 +668,11 @@ static irqreturn_t atp_interrupt(int irq, void *dev_instance)
}
num_tx_since_rx++;
} else if (num_tx_since_rx > 8 &&
- time_after(jiffies, dev->last_rx + HZ)) {
+ time_after(jiffies, lp->last_rx_time + HZ)) {
if (net_debug > 2)
printk(KERN_DEBUG "%s: Missed packet? No Rx after %d Tx and "
"%ld jiffies status %02x CMR1 %02x.\n", dev->name,
- num_tx_since_rx, jiffies - dev->last_rx, status,
+ num_tx_since_rx, jiffies - lp->last_rx_time, status,
(read_nibble(ioaddr, CMR1) >> 3) & 15);
dev->stats.rx_missed_errors++;
hardware_init(dev);
@@ -789,7 +789,6 @@ static void net_rx(struct net_device *dev)
read_block(ioaddr, pkt_len, skb_put(skb,pkt_len), dev->if_port);
skb->protocol = eth_type_trans(skb, dev);
netif_rx(skb);
- dev->last_rx = jiffies;
dev->stats.rx_packets++;
dev->stats.rx_bytes += pkt_len;
}