xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge 5.7-rc7 into driver-core-next

Browse Source 
We need the driver core fixes in here as well

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman
2020-05-25 08:55:12 +02:00
parent 2cd38fd15e 9cb1fd0efd
commit f7d8f3f092
609 changed files with 5061 additions and 2494 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
drivers/base/core.c
View File

@@ -368,6 +368,7 @@ struct device_link *device_link_add(struct device *consumer,
link->flags |= DL_FLAG_STATELESS;
goto reorder;
} else {
link->flags |= DL_FLAG_STATELESS;
goto out;
}
}
@@ -436,12 +437,16 @@ struct device_link *device_link_add(struct device *consumer,
flags & DL_FLAG_PM_RUNTIME)
pm_runtime_resume(supplier);
list_add_tail_rcu(&link->s_node, &supplier->links.consumers);
list_add_tail_rcu(&link->c_node, &consumer->links.suppliers);
if (flags & DL_FLAG_SYNC_STATE_ONLY) {
dev_dbg(consumer,
"Linked as a sync state only consumer to %s\n",
dev_name(supplier));
goto out;
}
reorder:
/*
* Move the consumer and all of the devices depending on it to the end
@@ -452,12 +457,9 @@ reorder:
*/
device_reorder_to_tail(consumer, NULL);
list_add_tail_rcu(&link->s_node, &supplier->links.consumers);
list_add_tail_rcu(&link->c_node, &consumer->links.suppliers);
dev_dbg(consumer, "Linked as a consumer to %s\n", dev_name(supplier));
out:
out:
device_pm_unlock();
device_links_write_unlock();
@@ -832,6 +834,13 @@ static void __device_links_supplier_defer_sync(struct device *sup)
list_add_tail(&sup->links.defer_sync, &deferred_sync);
}
static void device_link_drop_managed(struct device_link *link)
{
link->flags &= ~DL_FLAG_MANAGED;
WRITE_ONCE(link->status, DL_STATE_NONE);
kref_put(&link->kref, __device_link_del);
}
/**
* device_links_driver_bound - Update device links after probing its driver.
* @dev: Device to update the links for.
@@ -845,7 +854,7 @@ static void __device_links_supplier_defer_sync(struct device *sup)
*/
void device_links_driver_bound(struct device *dev)
{
struct device_link *link;
struct device_link *link, *ln;
LIST_HEAD(sync_list);
/*
@@ -885,18 +894,35 @@ void device_links_driver_bound(struct device *dev)
else
__device_links_queue_sync_state(dev, &sync_list);
list_for_each_entry(link, &dev->links.suppliers, c_node) {
list_for_each_entry_safe(link, ln, &dev->links.suppliers, c_node) {
struct device *supplier;
if (!(link->flags & DL_FLAG_MANAGED))
continue;
WARN_ON(link->status != DL_STATE_CONSUMER_PROBE);
WRITE_ONCE(link->status, DL_STATE_ACTIVE);
supplier = link->supplier;
if (link->flags & DL_FLAG_SYNC_STATE_ONLY) {
/*
* When DL_FLAG_SYNC_STATE_ONLY is set, it means no
* other DL_MANAGED_LINK_FLAGS have been set. So, it's
* save to drop the managed link completely.
*/
device_link_drop_managed(link);
} else {
WARN_ON(link->status != DL_STATE_CONSUMER_PROBE);
WRITE_ONCE(link->status, DL_STATE_ACTIVE);
}
/*
* This needs to be done even for the deleted
* DL_FLAG_SYNC_STATE_ONLY device link in case it was the last
* device link that was preventing the supplier from getting a
* sync_state() call.
*/
if (defer_sync_state_count)
__device_links_supplier_defer_sync(link->supplier);
__device_links_supplier_defer_sync(supplier);
else
__device_links_queue_sync_state(link->supplier,
&sync_list);
__device_links_queue_sync_state(supplier, &sync_list);
}
dev->links.status = DL_DEV_DRIVER_BOUND;
@@ -906,13 +932,6 @@ void device_links_driver_bound(struct device *dev)
device_links_flush_sync_list(&sync_list, dev);
}
static void device_link_drop_managed(struct device_link *link)
{
link->flags &= ~DL_FLAG_MANAGED;
WRITE_ONCE(link->status, DL_STATE_NONE);
kref_put(&link->kref, __device_link_del);
}
/**
* __device_links_no_driver - Update links of a device without a driver.
* @dev: Device without a drvier.