From 43a825afc91e2b06af1e8e7422198e759c2c5e20 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= Date: Mon, 20 Jan 2020 10:29:17 +0100 Subject: xsk, net: Make sock_def_readable() have external linkage MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit XDP sockets use the default implementation of struct sock's sk_data_ready callback, which is sock_def_readable(). This function is called in the XDP socket fast-path, and involves a retpoline. By letting sock_def_readable() have external linkage, and being called directly, the retpoline can be avoided. Signed-off-by: Björn Töpel Signed-off-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20200120092917.13949-1-bjorn.topel@gmail.com --- net/core/sock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/core') diff --git a/net/core/sock.c b/net/core/sock.c index 8459ad579f73..a4c8fac781ff 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -2786,7 +2786,7 @@ static void sock_def_error_report(struct sock *sk) rcu_read_unlock(); } -static void sock_def_readable(struct sock *sk) +void sock_def_readable(struct sock *sk) { struct socket_wq *wq; -- cgit v1.2.3