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authorBjörn Töpel <bjorn.topel@intel.com>2020-01-20 10:29:17 +0100
committerDaniel Borkmann <daniel@iogearbox.net>2020-01-22 00:08:52 +0100
commit43a825afc91e2b06af1e8e7422198e759c2c5e20 (patch)
tree2d3ea0e73f127ff6e3eb06dc5beb8fad7e44e798 /net/core/sock.c
parentbpf: don't bother with getname/kern_path - use user_path_at (diff)
downloadlinux-dev-43a825afc91e2b06af1e8e7422198e759c2c5e20.tar.xz
linux-dev-43a825afc91e2b06af1e8e7422198e759c2c5e20.zip
xsk, net: Make sock_def_readable() have external linkage
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 <bjorn.topel@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20200120092917.13949-1-bjorn.topel@gmail.com
Diffstat (limited to 'net/core/sock.c')
-rw-r--r--net/core/sock.c2
1 files changed, 1 insertions, 1 deletions
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;