tcp: avoid indirect call to tcp_stream_memory_free()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/include/net/sock.h b/include/net/sock.h
index a5c6ae7..1d29aea 100644 (file)
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -60,7 +60,7 @@
 #include <linux/rculist_nulls.h>
 #include <linux/poll.h>
 #include <linux/sockptr.h>
-
+#include <linux/indirect_call_wrapper.h>
 #include <linux/atomic.h>
 #include <linux/refcount.h>
 #include <net/dst.h>
@@ -1264,13 +1264,17 @@ static inline void sk_refcnt_debug_release(const struct sock *sk)
 #define sk_refcnt_debug_release(sk) do { } while (0)
 #endif /* SOCK_REFCNT_DEBUG */
 
+INDIRECT_CALLABLE_DECLARE(bool tcp_stream_memory_free(const struct sock *sk, int wake));
+
 static inline bool __sk_stream_memory_free(const struct sock *sk, int wake)
 {
        if (READ_ONCE(sk->sk_wmem_queued) >= READ_ONCE(sk->sk_sndbuf))
                return false;
 
        return sk->sk_prot->stream_memory_free ?
-               sk->sk_prot->stream_memory_free(sk, wake) : true;
+               INDIRECT_CALL_1(sk->sk_prot->stream_memory_free,
+                               tcp_stream_memory_free,
+                               sk, wake) : true;
 }
 
 static inline bool sk_stream_memory_free(const struct sock *sk)