aboutsummaryrefslogtreecommitdiffstats
path: root/net/dsa
diff options
context:
space:
mode:
authorFlorian Fainelli <f.fainelli@gmail.com>2015-03-05 20:35:08 (GMT)
committerDavid S. Miller <davem@davemloft.net>2015-03-06 05:18:20 (GMT)
commitc86e59b9e63659bb7fc2ba1781aabe2f37aaf10b (patch)
tree9b62ef1646e406ee2a7d70fb2fdcf8de782c3e4d /net/dsa
parent59299031038f3ea92cf484bc4a68d16ad4bb3050 (diff)
net: dsa: extract dsa switch tree setup and removal
Extract the core logic that setups a 'struct dsa_switch_tree' and removes it, update dsa_probe() and dsa_remove() to use the two helper functions. This will be useful to allow for other callers to setup this structure differently. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/dsa.c91
1 files changed, 52 insertions, 39 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 4cc9956..b40f11b 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -710,12 +710,55 @@ static inline void dsa_of_remove(struct device *dev)
}
#endif
+static void dsa_setup_dst(struct dsa_switch_tree *dst, struct net_device *dev,
+ struct device *parent, struct dsa_platform_data *pd)
+{
+ int i;
+
+ dst->pd = pd;
+ dst->master_netdev = dev;
+ dst->cpu_switch = -1;
+ dst->cpu_port = -1;
+
+ for (i = 0; i < pd->nr_chips; i++) {
+ struct dsa_switch *ds;
+
+ ds = dsa_switch_setup(dst, i, parent, pd->chip[i].host_dev);
+ if (IS_ERR(ds)) {
+ netdev_err(dev, "[%d]: couldn't create dsa switch instance (error %ld)\n",
+ i, PTR_ERR(ds));
+ continue;
+ }
+
+ dst->ds[i] = ds;
+ if (ds->drv->poll_link != NULL)
+ dst->link_poll_needed = 1;
+ }
+
+ /*
+ * If we use a tagging format that doesn't have an ethertype
+ * field, make sure that all packets from this point on get
+ * sent to the tag format's receive function.
+ */
+ wmb();
+ dev->dsa_ptr = (void *)dst;
+
+ if (dst->link_poll_needed) {
+ INIT_WORK(&dst->link_poll_work, dsa_link_poll_work);
+ init_timer(&dst->link_poll_timer);
+ dst->link_poll_timer.data = (unsigned long)dst;
+ dst->link_poll_timer.function = dsa_link_poll_timer;
+ dst->link_poll_timer.expires = round_jiffies(jiffies + HZ);
+ add_timer(&dst->link_poll_timer);
+ }
+}
+
static int dsa_probe(struct platform_device *pdev)
{
struct dsa_platform_data *pd = pdev->dev.platform_data;
struct net_device *dev;
struct dsa_switch_tree *dst;
- int i, ret;
+ int ret;
pr_notice_once("Distributed Switch Architecture driver version %s\n",
dsa_driver_version);
@@ -752,42 +795,7 @@ static int dsa_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, dst);
- dst->pd = pd;
- dst->master_netdev = dev;
- dst->cpu_switch = -1;
- dst->cpu_port = -1;
-
- for (i = 0; i < pd->nr_chips; i++) {
- struct dsa_switch *ds;
-
- ds = dsa_switch_setup(dst, i, &pdev->dev, pd->chip[i].host_dev);
- if (IS_ERR(ds)) {
- netdev_err(dev, "[%d]: couldn't create dsa switch instance (error %ld)\n",
- i, PTR_ERR(ds));
- continue;
- }
-
- dst->ds[i] = ds;
- if (ds->drv->poll_link != NULL)
- dst->link_poll_needed = 1;
- }
-
- /*
- * If we use a tagging format that doesn't have an ethertype
- * field, make sure that all packets from this point on get
- * sent to the tag format's receive function.
- */
- wmb();
- dev->dsa_ptr = (void *)dst;
-
- if (dst->link_poll_needed) {
- INIT_WORK(&dst->link_poll_work, dsa_link_poll_work);
- init_timer(&dst->link_poll_timer);
- dst->link_poll_timer.data = (unsigned long)dst;
- dst->link_poll_timer.function = dsa_link_poll_timer;
- dst->link_poll_timer.expires = round_jiffies(jiffies + HZ);
- add_timer(&dst->link_poll_timer);
- }
+ dsa_setup_dst(dst, dev, &pdev->dev, pd);
return 0;
@@ -797,9 +805,8 @@ out:
return ret;
}
-static int dsa_remove(struct platform_device *pdev)
+static void dsa_remove_dst(struct dsa_switch_tree *dst)
{
- struct dsa_switch_tree *dst = platform_get_drvdata(pdev);
int i;
if (dst->link_poll_needed)
@@ -813,7 +820,13 @@ static int dsa_remove(struct platform_device *pdev)
if (ds != NULL)
dsa_switch_destroy(ds);
}
+}
+
+static int dsa_remove(struct platform_device *pdev)
+{
+ struct dsa_switch_tree *dst = platform_get_drvdata(pdev);
+ dsa_remove_dst(dst);
dsa_of_remove(&pdev->dev);
return 0;

Privacy Policy