net: dsa: rename switch operations structure

Now that the dsa_switch_driver structure contains only function pointers
as it is supposed to, rename it to the more appropriate dsa_switch_ops,
uniformly to any other operations structure in the kernel.

No functional changes here, basically just the result of something like:
s/dsa_switch_driver *drv/dsa_switch_ops *ops/g

However keep the {un,}register_switch_driver functions and their
dsa_switch_drivers list as is, since they represent the -- likely to be
deprecated soon -- legacy DSA registration framework.

In the meantime, also fix the following checks from checkpatch.pl to
make it happy with this patch:

    CHECK: Comparison to NULL could be written "!ops"
    #403: FILE: net/dsa/dsa.c:470:
    +	if (ops == NULL) {

    CHECK: Comparison to NULL could be written "ds->ops->get_strings"
    #773: FILE: net/dsa/slave.c:697:
    +		if (ds->ops->get_strings != NULL)

    CHECK: Comparison to NULL could be written "ds->ops->get_ethtool_stats"
    #824: FILE: net/dsa/slave.c:785:
    +	if (ds->ops->get_ethtool_stats != NULL)

    CHECK: Comparison to NULL could be written "ds->ops->get_sset_count"
    #835: FILE: net/dsa/slave.c:798:
    +		if (ds->ops->get_sset_count != NULL)

    total: 0 errors, 0 warnings, 4 checks, 784 lines checked

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index 65ecb51..6fb77cc 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -1378,7 +1378,7 @@
 	return DSA_TAG_PROTO_NONE;
 }
 
-static struct dsa_switch_driver b53_switch_ops = {
+static struct dsa_switch_ops b53_switch_ops = {
 	.get_tag_protocol	= b53_get_tag_protocol,
 	.setup			= b53_setup,
 	.set_addr		= b53_set_addr,
@@ -1618,7 +1618,7 @@
 			dev->vta_regs[1] = chip->vta_regs[1];
 			dev->vta_regs[2] = chip->vta_regs[2];
 			dev->jumbo_pm_reg = chip->jumbo_pm_reg;
-			ds->drv = &b53_switch_ops;
+			ds->ops = &b53_switch_ops;
 			dev->cpu_port = chip->cpu_port;
 			dev->num_vlans = chip->vlans;
 			dev->num_arl_entries = chip->arl_entries;
diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index b47a74b..220e5d1 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -1581,7 +1581,7 @@
 	return 0;
 }
 
-static struct dsa_switch_driver bcm_sf2_switch_driver = {
+static struct dsa_switch_ops bcm_sf2_switch_ops = {
 	.setup			= bcm_sf2_sw_setup,
 	.get_tag_protocol	= bcm_sf2_sw_get_tag_protocol,
 	.set_addr		= bcm_sf2_sw_set_addr,
@@ -1632,7 +1632,7 @@
 	priv = (struct bcm_sf2_priv *)(ds + 1);
 	ds->priv = priv;
 	ds->dev = &pdev->dev;
-	ds->drv = &bcm_sf2_switch_driver;
+	ds->ops = &bcm_sf2_switch_ops;
 
 	dev_set_drvdata(&pdev->dev, ds);
 
diff --git a/drivers/net/dsa/mv88e6060.c b/drivers/net/dsa/mv88e6060.c
index 1fdfbf3..7ff9d37 100644
--- a/drivers/net/dsa/mv88e6060.c
+++ b/drivers/net/dsa/mv88e6060.c
@@ -252,7 +252,7 @@
 	return reg_write(ds, addr, regnum, val);
 }
 
-static struct dsa_switch_driver mv88e6060_switch_driver = {
+static struct dsa_switch_ops mv88e6060_switch_ops = {
 	.get_tag_protocol = mv88e6060_get_tag_protocol,
 	.probe		= mv88e6060_drv_probe,
 	.setup		= mv88e6060_setup,
@@ -263,14 +263,14 @@
 
 static int __init mv88e6060_init(void)
 {
-	register_switch_driver(&mv88e6060_switch_driver);
+	register_switch_driver(&mv88e6060_switch_ops);
 	return 0;
 }
 module_init(mv88e6060_init);
 
 static void __exit mv88e6060_cleanup(void)
 {
-	unregister_switch_driver(&mv88e6060_switch_driver);
+	unregister_switch_driver(&mv88e6060_switch_ops);
 }
 module_exit(mv88e6060_cleanup);
 
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 82d4516..750d01d 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -3976,7 +3976,7 @@
 	return NULL;
 }
 
-static struct dsa_switch_driver mv88e6xxx_switch_driver = {
+static struct dsa_switch_ops mv88e6xxx_switch_ops = {
 	.probe			= mv88e6xxx_drv_probe,
 	.get_tag_protocol	= mv88e6xxx_get_tag_protocol,
 	.setup			= mv88e6xxx_setup,
@@ -4025,7 +4025,7 @@
 
 	ds->dev = dev;
 	ds->priv = chip;
-	ds->drv = &mv88e6xxx_switch_driver;
+	ds->ops = &mv88e6xxx_switch_ops;
 
 	dev_set_drvdata(dev, ds);
 
@@ -4118,7 +4118,7 @@
 
 static int __init mv88e6xxx_init(void)
 {
-	register_switch_driver(&mv88e6xxx_switch_driver);
+	register_switch_driver(&mv88e6xxx_switch_ops);
 	return mdio_driver_register(&mv88e6xxx_driver);
 }
 module_init(mv88e6xxx_init);
@@ -4126,7 +4126,7 @@
 static void __exit mv88e6xxx_cleanup(void)
 {
 	mdio_driver_unregister(&mv88e6xxx_driver);
-	unregister_switch_driver(&mv88e6xxx_switch_driver);
+	unregister_switch_driver(&mv88e6xxx_switch_ops);
 }
 module_exit(mv88e6xxx_cleanup);