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Subject[RFC PATCH v2 1/4] net: dsa: allow switch drivers to cleanup their resources
Date
Some switch drivers might request interrupts, remap register ranges,
allow such drivers to implement a "remove" callback doing just that.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
include/net/dsa.h | 1 +
net/dsa/dsa.c | 4 ++++
2 files changed, 5 insertions(+)

diff --git a/include/net/dsa.h b/include/net/dsa.h
index 98ccbde..0e1502c 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -212,6 +212,7 @@ struct dsa_switch_driver {
*/
char *(*probe)(struct device *host_dev, int sw_addr);
int (*setup)(struct dsa_switch *ds);
+ void (*remove)(struct dsa_switch *ds);
int (*set_addr)(struct dsa_switch *ds, u8 *addr);
u32 (*get_phy_flags)(struct dsa_switch *ds, int port);

diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 1eba07f..f462fc5 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -459,6 +459,10 @@ static void dsa_switch_destroy(struct dsa_switch *ds)
}

mdiobus_unregister(ds->slave_mii_bus);
+
+ /* Leave a chance to the driver to cleanup */
+ if (ds->drv->remove)
+ ds->drv->remove(ds);
}

#ifdef CONFIG_PM_SLEEP
--
1.9.1

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