diff options
| author | Tobias Klauser <tklauser@distanz.ch> | 2017-01-18 17:45:01 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-18 17:22:49 -0500 |
| commit | 4a7c972644c1151f6dd34ff4b5f7eacb239e22ee (patch) | |
| tree | 5a712df870eac9710464921125246365c542521a /drivers/net/ethernet/marvell | |
| parent | 9520ed8fb8410dcb6babf751561a08f73ca03812 (diff) | |
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/marvell')
| -rw-r--r-- | drivers/net/ethernet/marvell/sky2.c | 6 | ||||
| -rw-r--r-- | drivers/net/ethernet/marvell/sky2.h | 1 |
2 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c index be003c5a4f5f..2b2cc3f3ca10 100644 --- a/drivers/net/ethernet/marvell/sky2.c +++ b/drivers/net/ethernet/marvell/sky2.c @@ -2666,7 +2666,7 @@ static inline void sky2_rx_done(struct sky2_hw *hw, unsigned port, sky2->rx_stats.bytes += bytes; u64_stats_update_end(&sky2->rx_stats.syncp); - dev->last_rx = jiffies; + sky2->last_rx = jiffies; sky2_rx_update(netdev_priv(dev), rxqaddr[port]); } @@ -2953,7 +2953,7 @@ static int sky2_rx_hung(struct net_device *dev) u8 fifo_lev = sky2_read8(hw, Q_ADDR(rxq, Q_RL)); /* If idle and MAC or PCI is stuck */ - if (sky2->check.last == dev->last_rx && + if (sky2->check.last == sky2->last_rx && ((mac_rp == sky2->check.mac_rp && mac_lev != 0 && mac_lev >= sky2->check.mac_lev) || /* Check if the PCI RX hang */ @@ -2965,7 +2965,7 @@ static int sky2_rx_hung(struct net_device *dev) fifo_rp, sky2_read8(hw, Q_ADDR(rxq, Q_WP))); return 1; } else { - sky2->check.last = dev->last_rx; + sky2->check.last = sky2->last_rx; sky2->check.mac_rp = mac_rp; sky2->check.mac_lev = mac_lev; sky2->check.fifo_rp = fifo_rp; diff --git a/drivers/net/ethernet/marvell/sky2.h b/drivers/net/ethernet/marvell/sky2.h index ec6dcd80152b..0fe160796842 100644 --- a/drivers/net/ethernet/marvell/sky2.h +++ b/drivers/net/ethernet/marvell/sky2.h @@ -2247,6 +2247,7 @@ struct sky2_port { u16 rx_data_size; u16 rx_nfrags; + unsigned long last_rx; struct { unsigned long last; u32 mac_rp; |