Export sk_attach_filter/sk_detach_filter routines,
so that tun module can use them.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 net/core/filter.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/net/core/filter.c b/net/core/filter.c
index 4e0712a..08e40f3 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -530,6 +530,7 @@ int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk)
 		sk_filter_delayed_uncharge(sk, old_fp);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(sk_attach_filter);
 
 int sk_detach_filter(struct sock *sk)
 {
@@ -546,3 +547,4 @@ int sk_detach_filter(struct sock *sk)
 	rcu_read_unlock_bh();
 	return ret;
 }
+EXPORT_SYMBOL_GPL(sk_detach_filter);
-- 
1.6.6.144.g5c3af

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