249  * Request exclusive access to a hash bucket for a given dma_debug_entry.
264  * Give up exclusive access to the hash bucket
266 static void put_hash_bucket(struct hash_bucket *bucket,  in put_hash_bucket()  argument
268 	__releases(&bucket->lock)  in put_hash_bucket()
270 	spin_unlock_irqrestore(&bucket->lock, flags);  in put_hash_bucket()
293  * Search a given entry in the hash bucket list
295 static struct dma_debug_entry *__hash_bucket_find(struct hash_bucket *bucket,  in __hash_bucket_find()  argument
302 	list_for_each_entry(entry, &bucket->list, list) {  in __hash_bucket_find()
345 static struct dma_debug_entry *bucket_find_exact(struct hash_bucket *bucket,  in bucket_find_exact()  argument
348 	return __hash_bucket_find(bucket, ref, exact_match);  in bucket_find_exact()
351 static struct dma_debug_entry *bucket_find_contain(struct hash_bucket **bucket,  in bucket_find_contain()  argument
360 		entry = __hash_bucket_find(*bucket, ref, containing_match);  in bucket_find_contain()
366 		 * Nothing found, go back a hash bucket  in bucket_find_contain()
368 		put_hash_bucket(*bucket, *flags);  in bucket_find_contain()
370 		*bucket = get_hash_bucket(&index, flags);  in bucket_find_contain()
377  * Add an entry to a hash bucket
379 static void hash_bucket_add(struct hash_bucket *bucket,  in hash_bucket_add()  argument
382 	list_add_tail(&entry->list, &bucket->list);  in hash_bucket_add()
386  * Remove entry from a hash bucket list
525 		struct hash_bucket *bucket = &dma_entry_hash[idx];  in debug_dma_dump_mappings()  local
529 		spin_lock_irqsave(&bucket->lock, flags);  in debug_dma_dump_mappings()
530 		list_for_each_entry(entry, &bucket->list, list) {  in debug_dma_dump_mappings()
542 		spin_unlock_irqrestore(&bucket->lock, flags);  in debug_dma_dump_mappings()
557 		struct hash_bucket *bucket = &dma_entry_hash[idx];  in dump_show()  local
561 		spin_lock_irqsave(&bucket->lock, flags);  in dump_show()
562 		list_for_each_entry(entry, &bucket->list, list) {  in dump_show()
574 		spin_unlock_irqrestore(&bucket->lock, flags);  in dump_show()
586 	struct hash_bucket *bucket;  in add_dma_entry()  local
590 	bucket = get_hash_bucket(entry, &flags);  in add_dma_entry()
591 	hash_bucket_add(bucket, entry);  in add_dma_entry()
592 	put_hash_bucket(bucket, flags);  in add_dma_entry()
962 	struct hash_bucket *bucket;  in check_unmap()  local
965 	bucket = get_hash_bucket(ref, &flags);  in check_unmap()
966 	entry = bucket_find_exact(bucket, ref);  in check_unmap()
970 		put_hash_bucket(bucket, flags);  in check_unmap()
1051 	put_hash_bucket(bucket, flags);  in check_unmap()
1101 	struct hash_bucket *bucket;  in check_sync()  local
1104 	bucket = get_hash_bucket(ref, &flags);  in check_sync()
1106 	entry = bucket_find_contain(&bucket, ref, &flags);  in check_sync()
1168 	put_hash_bucket(bucket, flags);  in check_sync()
1248 	struct hash_bucket *bucket;  in debug_dma_mapping_error()  local
1256 	bucket = get_hash_bucket(&ref, &flags);  in debug_dma_mapping_error()
1258 	list_for_each_entry(entry, &bucket->list, list) {  in debug_dma_mapping_error()
1278 	put_hash_bucket(bucket, flags);  in debug_dma_mapping_error()
1339 	struct hash_bucket *bucket;  in get_nr_mapped_entries()  local
1343 	bucket       = get_hash_bucket(ref, &flags);  in get_nr_mapped_entries()
1344 	entry        = bucket_find_exact(bucket, ref);  in get_nr_mapped_entries()
1349 	put_hash_bucket(bucket, flags);  in get_nr_mapped_entries()