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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>
This commit is contained in:
Bhumika Goyal 2017-01-21 12:27:26 +05:30 committed by David S. Miller
parent 4404323c6a
commit 30bd2f52e5
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/moxa/moxart_ether.c
View File

@ -436,7 +436,7 @@ static void moxart_mac_set_rx_mode(struct net_device *ndev)
spin_unlock_irq(&priv->txlock);
}
static struct net_device_ops moxart_netdev_ops = {
static const struct net_device_ops moxart_netdev_ops = {
.ndo_open = moxart_mac_open,
.ndo_stop = moxart_mac_stop,
.ndo_start_xmit = moxart_mac_start_xmit,