From 4dad81ee14479c74973ee669612a367b3a675743 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Sun, 28 Apr 2019 19:37:19 +0200 Subject: dsa: Add stub tag driver put method When a DSA switch driver is unloaded, the lock on the tag driver should be released so the module can be unloaded. Add the needed calls, but leave the actual release code as a stub. Signed-off-by: Andrew Lunn Reviewed-by: Florian Fainelli v2 Signed-off-by: David S. Miller --- net/dsa/dsa.c | 4 ++++ net/dsa/dsa2.c | 2 ++ net/dsa/dsa_priv.h | 1 + net/dsa/legacy.c | 2 ++ 4 files changed, 9 insertions(+) (limited to 'net/dsa') diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index 0a68d784ea18..54e89c97ce11 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -137,6 +137,10 @@ const struct dsa_device_ops *dsa_tag_driver_get(int tag_protocol) return ops; } +void dsa_tag_driver_put(const struct dsa_device_ops *ops) +{ +} + static int dev_is_class(struct device *dev, void *class) { if (dev->class != NULL && !strcmp(dev->class->name, class)) diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index ba91bda8bdd3..bbc9f56e89b9 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -335,6 +335,8 @@ static void dsa_port_teardown(struct dsa_port *dp) case DSA_PORT_TYPE_UNUSED: break; case DSA_PORT_TYPE_CPU: + dsa_tag_driver_put(dp->tag_ops); + /* fall-through */ case DSA_PORT_TYPE_DSA: dsa_port_link_unregister_of(dp); break; diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h index abe3abeb0bb9..ea482e88f7b8 100644 --- a/net/dsa/dsa_priv.h +++ b/net/dsa/dsa_priv.h @@ -85,6 +85,7 @@ struct dsa_slave_priv { /* dsa.c */ const struct dsa_device_ops *dsa_tag_driver_get(int tag_protocol); +void dsa_tag_driver_put(const struct dsa_device_ops *ops); bool dsa_schedule_work(struct work_struct *work); const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops); diff --git a/net/dsa/legacy.c b/net/dsa/legacy.c index a8c076250237..219f4fa7ff4b 100644 --- a/net/dsa/legacy.c +++ b/net/dsa/legacy.c @@ -163,6 +163,8 @@ static int dsa_switch_setup_one(struct dsa_switch *ds, dst->cpu_dp->dst = dst; } + dsa_tag_driver_put(dst->cpu_dp->tag_ops); + memcpy(ds->rtable, cd->rtable, sizeof(ds->rtable)); /* -- cgit v1.2.3-59-g8ed1b