linux-kernel - [PATCH 1/2] USB: dma: remove unused function prototype

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Message-ID: <20230914172336.18761-2-ayaka@soulik.info>
Date:   Fri, 15 Sep 2023 01:23:23 +0800
From:   Randy Li <ayaka@...lik.info>
To:     linux-usb@...r.kernel.org
Cc:     Randy Li <ayaka@...lik.info>, stern@...land.harvard.edu,
        gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        corbet@....net, linux-doc@...r.kernel.org
Subject: [PATCH 1/2] USB: dma: remove unused function prototype

usb_buffer_map_sg() and usb_buffer_unmap_sg() have no definition
since the beginning of v5.4. The rest are gone from 2.6.12.

Signed-off-by: Randy Li <ayaka@...lik.info>
---
 include/linux/usb.h | 16 ----------------
 1 file changed, 16 deletions(-)

diff --git a/include/linux/usb.h b/include/linux/usb.h
index a21074861f91..8c61643acd49 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1823,22 +1823,6 @@ void *usb_alloc_coherent(struct usb_device *dev, size_t size,
 void usb_free_coherent(struct usb_device *dev, size_t size,
 	void *addr, dma_addr_t dma);
 
-#if 0
-struct urb *usb_buffer_map(struct urb *urb);
-void usb_buffer_dmasync(struct urb *urb);
-void usb_buffer_unmap(struct urb *urb);
-#endif
-
-struct scatterlist;
-int usb_buffer_map_sg(const struct usb_device *dev, int is_in,
-		      struct scatterlist *sg, int nents);
-#if 0
-void usb_buffer_dmasync_sg(const struct usb_device *dev, int is_in,
-			   struct scatterlist *sg, int n_hw_ents);
-#endif
-void usb_buffer_unmap_sg(const struct usb_device *dev, int is_in,
-			 struct scatterlist *sg, int n_hw_ents);
-
 /*-------------------------------------------------------------------*
  *                         SYNCHRONOUS CALL SUPPORT                  *
  *-------------------------------------------------------------------*/
-- 
2.41.0