diff --git a/drivers/staging/r8188eu/include/rtw_io.h b/drivers/staging/r8188eu/include/rtw_io.h
index 900ed2c648d4..0d2aa432f88d 100644
--- a/drivers/staging/r8188eu/include/rtw_io.h
+++ b/drivers/staging/r8188eu/include/rtw_io.h
@@ -16,12 +16,6 @@
 #include <linux/usb.h>
 #include <linux/usb/ch9.h>
 
-#define rtw_usb_buffer_alloc(dev, size, dma)				\
-	usb_alloc_coherent((dev), (size), (in_interrupt() ?		\
-			   GFP_ATOMIC : GFP_KERNEL), (dma))
-#define rtw_usb_buffer_free(dev, size, addr, dma)			\
-	usb_free_coherent((dev), (size), (addr), (dma))
-
 struct intf_priv;
 struct intf_hdl;