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-rw-r--r--kernel/dma/debug.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c
index 3de494375b..a6e3792b15 100644
--- a/kernel/dma/debug.c
+++ b/kernel/dma/debug.c
@@ -62,7 +62,8 @@ enum map_err_types {
* @pfn: page frame of the start address
* @offset: offset of mapping relative to pfn
* @map_err_type: track whether dma_mapping_error() was checked
- * @stacktrace: support backtraces when a violation is detected
+ * @stack_len: number of backtrace entries in @stack_entries
+ * @stack_entries: stack of backtrace history
*/
struct dma_debug_entry {
struct list_head list;
@@ -876,7 +877,7 @@ static int dma_debug_device_change(struct notifier_block *nb, unsigned long acti
return 0;
}
-void dma_debug_add_bus(struct bus_type *bus)
+void dma_debug_add_bus(const struct bus_type *bus)
{
struct notifier_block *nb;