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UPSTREAM: bpf, tcp: Fix unused function warnings

Browse source 
If BPF_STREAM_PARSER is not set, gcc warns:

  net/ipv4/tcp_bpf.c:483:12: warning: 'tcp_bpf_sendpage' defined but not used [-Wunused-function]
  net/ipv4/tcp_bpf.c:395:12: warning: 'tcp_bpf_sendmsg' defined but not used [-Wunused-function]
  net/ipv4/tcp_bpf.c:13:13: warning: 'tcp_bpf_stream_read' defined but not used [-Wunused-function]

Moves the unused functions into the #ifdef CONFIG_BPF_STREAM_PARSER.

Fixes: f747632b608f ("bpf: sockmap: Move generic sockmap hooks from BPF TCP")
Reported-by: Hulk Robot <hulkci@huawei.com>
Change-Id: I8ea081cf306c003a0c6b61d2c6261d3e82afded8
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Lorenz Bauer <lmb@cloudflare.com>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20200320023426.60684-2-yuehaibing@huawei.com
Signed-off-by: Tashfin Shakeer Rhythm <tashfinshakeerrhythm@gmail.com>
This commit is contained in:
YueHaibing 2020-03-20 10:34:25 +08:00 • committed by basamaryan
commit 42168a6f1d
No known key found for this signature in database
GPG key ID: 210D5384FB2A5885
1 changed files with 14 additions and 14 deletions
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28
net/ipv4/tcp_bpf.c
View file

@ -10,19 +10,6 @@
#include <net/inet_common.h>
#include <net/tls.h>
static bool tcp_bpf_stream_read(const struct sock *sk)
{
struct sk_psock *psock;
bool empty = true;
rcu_read_lock();
psock = sk_psock(sk);
if (likely(psock))
empty = list_empty(&psock->ingress_msg);
rcu_read_unlock();
return !empty;
}
static int tcp_bpf_wait_data(struct sock *sk, struct sk_psock *psock,
int flags, long timeo, int *err)
{
@ -309,6 +296,20 @@ int tcp_bpf_sendmsg_redir(struct sock *sk, struct sk_msg *msg,
}
EXPORT_SYMBOL_GPL(tcp_bpf_sendmsg_redir);
#ifdef CONFIG_BPF_STREAM_PARSER
static bool tcp_bpf_stream_read(const struct sock *sk)
{
struct sk_psock *psock;
bool empty = true;
rcu_read_lock();
psock = sk_psock(sk);
if (likely(psock))
empty = list_empty(&psock->ingress_msg);
rcu_read_unlock();
return !empty;
}
static int tcp_bpf_send_verdict(struct sock *sk, struct sk_psock *psock,
struct sk_msg *msg, int *copied, int flags)
{
@ -557,7 +558,6 @@ out_err:
return copied ? copied : err;
}
#ifdef CONFIG_BPF_STREAM_PARSER
enum {
TCP_BPF_IPV4,
TCP_BPF_IPV6,