Subject: [PATCH 25/38] udp: Unbreak modules that rely on external __skb_recv_udp() availability

From: Jiri Kosina <[email-masked]>
Date: Thu, 4 Oct 2018 13:37:32 +0200

[ Upstream commit 7e823644b60555f70f241274b8d0120dd919269a ]

Commit 2276f58ac589 ("udp: use a separate rx queue for packet reception")
turned static inline __skb_recv_udp() from being a trivial helper around
__skb_recv_datagram() into a UDP specific implementaion, making it
EXPORT_SYMBOL_GPL() at the same time.

There are external modules that got broken by __skb_recv_udp() not being
visible to them. Let's unbreak them by making __skb_recv_udp EXPORT_SYMBOL().

Rationale (one of those) why this is actually "technically correct" thing
to do: __skb_recv_udp() used to be an inline wrapper around
__skb_recv_datagram(), which itself (still, and correctly so, I believe)
is EXPORT_SYMBOL().

Cc: Paolo Abeni <[email-masked]>
Cc: Eric Dumazet <[email-masked]>
Fixes: 2276f58ac589 ("udp: use a separate rx queue for packet reception")
Signed-off-by: Jiri Kosina <[email-masked]>
Signed-off-by: David S. Miller <[email-masked]>
---
 net/ipv4/udp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 3de413867991..dc0ec227b9d2 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1565,7 +1565,7 @@ struct sk_buff *__skb_recv_udp(struct sock *sk, unsigned int flags,
 	*err = error;
 	return NULL;
 }
-EXPORT_SYMBOL_GPL(__skb_recv_udp);
+EXPORT_SYMBOL(__skb_recv_udp);
 
 /*
  * 	This should be easy, if there is something there we
-- 
2.17.2