linux-kernel - [PATCH 4/5] bury skb_copy_to

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Message-ID: <20141118194315.GE14641@ZenIV.linux.org.uk>
Date:	Tue, 18 Nov 2014 19:43:15 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	netdev@...r.kernel.org
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	David Miller <davem@...emloft.net>,
	linux-kernel@...r.kernel.org
Subject: [PATCH 4/5] bury skb_copy_to_page()

no callers since 3.0

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 include/net/sock.h |   23 -----------------------
 1 file changed, 23 deletions(-)

diff --git a/include/net/sock.h b/include/net/sock.h
index 94e0ead..d7d43e9 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1883,29 +1883,6 @@ static inline int skb_copy_to_page_nocache(struct sock *sk, char __user *from,
 	return 0;
 }
 
-static inline int skb_copy_to_page(struct sock *sk, char __user *from,
-				   struct sk_buff *skb, struct page *page,
-				   int off, int copy)
-{
-	if (skb->ip_summed == CHECKSUM_NONE) {
-		int err = 0;
-		__wsum csum = csum_and_copy_from_user(from,
-						     page_address(page) + off,
-							    copy, 0, &err);
-		if (err)
-			return err;
-		skb->csum = csum_block_add(skb->csum, csum, skb->len);
-	} else if (__copy_from_user(page_address(page) + off, from, copy))
-		return -EFAULT;
-
-	skb->len	     += copy;
-	skb->data_len	     += copy;
-	skb->truesize	     += copy;
-	sk->sk_wmem_queued   += copy;
-	sk_mem_charge(sk, copy);
-	return 0;
-}
-
 /**
  * sk_wmem_alloc_get - returns write allocations
  * @sk: socket
-- 
1.7.10.4

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