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net: deprecate eth_change_mtu, remove usage

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With centralized MTU checking, there's nothing productive done by
eth_change_mtu that isn't already done in dev_set_mtu, so mark it as
deprecated and remove all usage of it in the kernel. All callers have been
audited for calls to alloc_etherdev* or ether_setup directly, which means
they all have a valid dev->min_mtu and dev->max_mtu. Now eth_change_mtu
prints out a netdev_warn about being deprecated, for the benefit of
out-of-tree drivers that might be utilizing it.

Of note, dvb_net.c actually had dev->mtu = 4096, while using
eth_change_mtu, meaning that if you ever tried changing it's mtu, you
couldn't set it above 1500 anymore. It's now getting dev->max_mtu also set
to 4096 to remedy that.

v2: fix up lantiq_etop, missed breakage due to drive not compiling on x86

CC: netdev@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jarod Wilson
2016-10-07 22:04:34 -04:00
committed by David S. Miller
parent 61e84623ac
commit a52ad514fd
143 changed files with 16 additions and 156 deletions
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1
drivers/net/ethernet/smsc/epic100.c
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@@ -313,7 +313,6 @@ static const struct net_device_ops epic_netdev_ops = {
.ndo_get_stats = epic_get_stats,
.ndo_set_rx_mode = set_rx_mode,
.ndo_do_ioctl = netdev_ioctl,
.ndo_change_mtu = eth_change_mtu,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};

1
drivers/net/ethernet/smsc/smc911x.c
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@@ -1753,7 +1753,6 @@ static const struct net_device_ops smc911x_netdev_ops = {
.ndo_start_xmit = smc911x_hard_start_xmit,
.ndo_tx_timeout = smc911x_timeout,
.ndo_set_rx_mode = smc911x_set_multicast_list,
.ndo_change_mtu = eth_change_mtu,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
#ifdef CONFIG_NET_POLL_CONTROLLER

1
drivers/net/ethernet/smsc/smc9194.c
View File

@@ -809,7 +809,6 @@ static const struct net_device_ops smc_netdev_ops = {
.ndo_start_xmit = smc_wait_to_send_packet,
.ndo_tx_timeout = smc_timeout,
.ndo_set_rx_mode = smc_set_multicast_list,
.ndo_change_mtu = eth_change_mtu,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};

1
drivers/net/ethernet/smsc/smc91c92_cs.c
View File

@@ -294,7 +294,6 @@ static const struct net_device_ops smc_netdev_ops = {
.ndo_set_config = s9k_config,
.ndo_set_rx_mode = set_rx_mode,
.ndo_do_ioctl = smc_ioctl,
.ndo_change_mtu = eth_change_mtu,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
};

1
drivers/net/ethernet/smsc/smc91x.c
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@@ -1762,7 +1762,6 @@ static const struct net_device_ops smc_netdev_ops = {
.ndo_start_xmit = smc_hard_start_xmit,
.ndo_tx_timeout = smc_timeout,
.ndo_set_rx_mode = smc_set_multicast_list,
.ndo_change_mtu = eth_change_mtu,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
#ifdef CONFIG_NET_POLL_CONTROLLER

1
drivers/net/ethernet/smsc/smsc911x.c
View File

@@ -2152,7 +2152,6 @@ static const struct net_device_ops smsc911x_netdev_ops = {
.ndo_get_stats = smsc911x_get_stats,
.ndo_set_rx_mode = smsc911x_set_multicast_list,
.ndo_do_ioctl = smsc911x_do_ioctl,
.ndo_change_mtu = eth_change_mtu,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = smsc911x_set_mac_address,
#ifdef CONFIG_NET_POLL_CONTROLLER