• Julia Lawall's avatar
    l2tp: constify net_device_ops structures · eb94737d
    Julia Lawall authored
    Check for net_device_ops structures that are only stored in the netdev_ops
    field of a net_device structure.  This field is declared const, so
    net_device_ops structures that have this property can be declared as const
    The semantic patch that makes this change is as follows:
    // <smpl>
    @r disable optional_qualifier@
    identifier i;
    position p;
    static struct net_device_ops i@p = { ... };
    identifier r.i;
    struct net_device e;
    position p;
    e.netdev_ops = &i@p;
    position p != {r.p,ok.p};
    identifier r.i;
    struct net_device_ops e;
    @depends on !bad disable optional_qualifier@
    identifier r.i;
     struct net_device_ops i = { ... };
    // </smpl>
    The result of size on this file before the change is:
       text	      data     bss     dec         hex	  filename
       3401        931      44    4376        1118	net/l2tp/l2tp_eth.o
    and after the change it is:
       text	     data        bss	    dec	    hex	filename
       3993       347         44       4384    1120	net/l2tp/l2tp_eth.o
    Signed-off-by: default avatarJulia Lawall <Julia.Lawall@lip6.fr>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
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