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-rw-r--r--include/linux/net.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/net.h b/include/linux/net.h
index 0620f5e18c96..abcfa46a2bd9 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -298,6 +298,9 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg);
int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how);
+/* Routine returns the IP overhead imposed by a (caller-protected) socket. */
+u32 kernel_sock_ip_overhead(struct sock *sk);
+
#define MODULE_ALIAS_NETPROTO(proto) \
MODULE_ALIAS("net-pf-" __stringify(proto))