net: fix a compile error when CONFIG_NET_LL_RX_POLL is not set
When CONFIG_NET_LL_RX_POLL is not set, I got:
net/socket.c: In function ‘sock_poll’:
net/socket.c:1165:4: error: implicit declaration of function ‘sk_busy_loop’ [-Werror=implicit-function-declaration]
Fix this by adding a nop when !CONFIG_NET_LL_RX_POLL.
Cc: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h
index a14339c..6cd8848 100644
--- a/include/net/busy_poll.h
+++ b/include/net/busy_poll.h
@@ -181,5 +181,10 @@
return true;
}
+static inline bool sk_busy_loop(struct sock *sk, int nonblock)
+{
+ return false;
+}
+
#endif /* CONFIG_NET_LL_RX_POLL */
#endif /* _LINUX_NET_BUSY_POLL_H */