• Ben Hutchings's avatar
    net: Enable 64-bit net device statistics on 32-bit architectures · be1f3c2c
    Ben Hutchings authored
    Use struct rtnl_link_stats64 as the statistics structure.
    
    On 32-bit architectures, insert 32 bits of padding after/before each
    field of struct net_device_stats to make its layout compatible with
    struct rtnl_link_stats64.  Add an anonymous union in net_device; move
    stats into the union and add struct rtnl_link_stats64 stats64.
    
    Add net_device_ops::ndo_get_stats64, implementations of which will
    return a pointer to struct rtnl_link_stats64.  Drivers that implement
    this operation must not update the structure asynchronously.
    
    Change dev_get_stats() to call ndo_get_stats64 if available, and to
    return a pointer to struct rtnl_link_stats64.  Change callers of
    dev_get_stats() accordingly.
    Signed-off-by: default avatarBen Hutchings <bhutchings@solarflare.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    be1f3c2c
rtnetlink.c 43.7 KB