rk: ion: add buffer mmap/munmap trace

[firefly-linux-kernel-4.4.55.git] / drivers / base / dma-buf.c

diff --git a/drivers/base/dma-buf.c b/drivers/base/dma-buf.c
index 08fe897c0b4cfcdc4c2eed939870cf46ddf57735..303afaa43ce73309329f20c64908464a55b63cfd 100644 (file)
--- a/drivers/base/dma-buf.c
+++ b/drivers/base/dma-buf.c
@@ -90,6 +90,13 @@ static inline int is_dma_buf_file(struct file *file)
        return file->f_op == &dma_buf_fops;
 }
 
+#ifdef CONFIG_ARCH_ROCKCHIP
+int dma_buf_is_dma_buf(struct file *file)
+{
+       return is_dma_buf_file(file);
+}
+#endif
+
 /**
  * dma_buf_export_named - Creates a new dma_buf, and associates an anon file
  * with this buffer, so it can be exported.