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net: dsa: Encapsulate legacy switch drivers into dsa_switch_driver

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In preparation for making struct dsa_switch_ops const, encapsulate it
within a dsa_switch_driver which has a list pointer and a pointer to
dsa_switch_ops. This allows us to take the list_head pointer out of
dsa_switch_ops, which is written to by {un,}register_switch_driver.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2017-01-08 14:52:07 -08:00 • committed by David S. Miller
parent 73095cb188
commit ab3d408d3f
4 changed files with 26 additions and 13 deletions
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12
net/dsa/dsa.c
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@ -60,18 +60,18 @@ const struct dsa_device_ops *dsa_device_ops[DSA_TAG_LAST] = {
static DEFINE_MUTEX(dsa_switch_drivers_mutex);
static LIST_HEAD(dsa_switch_drivers);
void register_switch_driver(struct dsa_switch_ops *ops)
void register_switch_driver(struct dsa_switch_driver *drv)
{
mutex_lock(&dsa_switch_drivers_mutex);
list_add_tail(&ops->list, &dsa_switch_drivers);
list_add_tail(&drv->list, &dsa_switch_drivers);
mutex_unlock(&dsa_switch_drivers_mutex);
}
EXPORT_SYMBOL_GPL(register_switch_driver);
void unregister_switch_driver(struct dsa_switch_ops *ops)
void unregister_switch_driver(struct dsa_switch_driver *drv)
{
mutex_lock(&dsa_switch_drivers_mutex);
list_del_init(&ops->list);
list_del_init(&drv->list);
mutex_unlock(&dsa_switch_drivers_mutex);
}
EXPORT_SYMBOL_GPL(unregister_switch_driver);
@ -90,8 +90,10 @@ dsa_switch_probe(struct device *parent, struct device *host_dev, int sw_addr,
mutex_lock(&dsa_switch_drivers_mutex);
list_for_each(list, &dsa_switch_drivers) {
struct dsa_switch_ops *ops;
struct dsa_switch_driver *drv;
ops = list_entry(list, struct dsa_switch_ops, list);
drv = list_entry(list, struct dsa_switch_driver, list);
ops = drv->ops;
name = ops->probe(parent, host_dev, sw_addr, priv);
if (name != NULL) {