net: moxa: constify net_device_ops structures
authorBhumika Goyal <bhumirks@gmail.com>
Sat, 21 Jan 2017 06:57:26 +0000 (12:27 +0530)
committerDavid S. Miller <davem@davemloft.net>
Mon, 23 Jan 2017 20:58:49 +0000 (15:58 -0500)
commit30bd2f52e56ea35028cf1d13c21484918b6ff22d
tree8b5a7360e8002c704014601afff0c37eeab0c4fb
parent4404323c6ac256c2a11d86fda65fbdb7d198ff8c
net: moxa: constify net_device_ops structures

Declare net_device_ops structure as const as it is only stored in
the netdev_ops field of a net_device structure. This field is of type
const, so net_device_ops structures having same properties can be made
const too.
Done using Coccinelle:

@r1 disable optional_qualifier@
identifier i;
position p;
@@
static struct net_device_ops i@p={...};

@ok1@
identifier r1.i;
position p;
struct net_device ndev;
@@
ndev.netdev_ops=&i@p

@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct net_device_ops i;

File size before:
   text    data     bss     dec     hex filename
   4821     744       0    5565    15bd ethernet/moxa/moxart_ether.o

File size after:
   text    data     bss     dec     hex filename
   5373     192       0    5565    15bd ethernet/moxa/moxart_ether.o

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/moxa/moxart_ether.c