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-rw-r--r--drivers/interconnect/core.c18
1 files changed, 3 insertions, 15 deletions
diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c
index 1d9494f64..4526ff2e1 100644
--- a/drivers/interconnect/core.c
+++ b/drivers/interconnect/core.c
@@ -29,7 +29,6 @@ static LIST_HEAD(icc_providers);
static int providers_count;
static bool synced_state;
static DEFINE_MUTEX(icc_lock);
-static DEFINE_MUTEX(icc_bw_lock);
static struct dentry *icc_debugfs_dir;
static void icc_summary_show_one(struct seq_file *s, struct icc_node *n)
@@ -636,7 +635,7 @@ int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw)
if (WARN_ON(IS_ERR(path) || !path->num_nodes))
return -EINVAL;
- mutex_lock(&icc_bw_lock);
+ mutex_lock(&icc_lock);
old_avg = path->reqs[0].avg_bw;
old_peak = path->reqs[0].peak_bw;
@@ -668,7 +667,7 @@ int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw)
apply_constraints(path);
}
- mutex_unlock(&icc_bw_lock);
+ mutex_unlock(&icc_lock);
trace_icc_set_bw_end(path, ret);
@@ -971,7 +970,6 @@ void icc_node_add(struct icc_node *node, struct icc_provider *provider)
return;
mutex_lock(&icc_lock);
- mutex_lock(&icc_bw_lock);
node->provider = provider;
list_add_tail(&node->node_list, &provider->nodes);
@@ -997,7 +995,6 @@ void icc_node_add(struct icc_node *node, struct icc_provider *provider)
node->avg_bw = 0;
node->peak_bw = 0;
- mutex_unlock(&icc_bw_lock);
mutex_unlock(&icc_lock);
}
EXPORT_SYMBOL_GPL(icc_node_add);
@@ -1137,7 +1134,6 @@ void icc_sync_state(struct device *dev)
return;
mutex_lock(&icc_lock);
- mutex_lock(&icc_bw_lock);
synced_state = true;
list_for_each_entry(p, &icc_providers, provider_list) {
dev_dbg(p->dev, "interconnect provider is in synced state\n");
@@ -1150,21 +1146,13 @@ void icc_sync_state(struct device *dev)
}
}
}
- mutex_unlock(&icc_bw_lock);
mutex_unlock(&icc_lock);
}
EXPORT_SYMBOL_GPL(icc_sync_state);
static int __init icc_init(void)
{
- struct device_node *root;
-
- /* Teach lockdep about lock ordering wrt. shrinker: */
- fs_reclaim_acquire(GFP_KERNEL);
- might_lock(&icc_bw_lock);
- fs_reclaim_release(GFP_KERNEL);
-
- root = of_find_node_by_path("/");
+ struct device_node *root = of_find_node_by_path("/");
providers_count = of_count_icc_providers(root);
of_node_put(root);