• Jarod Wilson's avatar
    net: deprecate eth_change_mtu, remove usage · a52ad514
    Jarod Wilson authored
    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: default avatarJarod Wilson <jarod@redhat.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    a52ad514
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