[PATCH bpf-next v1 1/7] net: add splice_read to struct proto and set it in tcp_prot/tcpv6_prot
From: Jiayuan Chen <jiayuan.chen@linux.dev>
Date: 2026-03-04 06:37:38
Also in:
bpf, linux-kselftest, lkml
Subsystem:
networking [general], networking [sockets], networking [tcp], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Kuniyuki Iwashima, Willem de Bruijn, Neal Cardwell, Linus Torvalds
Add a splice_read function pointer to struct proto between recvmsg and splice_eof. Set it to tcp_splice_read in both tcp_prot and tcpv6_prot. Signed-off-by: Jiayuan Chen <jiayuan.chen@linux.dev> --- include/net/sock.h | 3 +++ net/ipv4/tcp_ipv4.c | 1 + net/ipv6/tcp_ipv6.c | 1 + 3 files changed, 5 insertions(+)
diff --git a/include/net/sock.h b/include/net/sock.h
index 6c9a83016e95..de28af168ec4 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h@@ -1317,6 +1317,9 @@ struct proto { size_t len); int (*recvmsg)(struct sock *sk, struct msghdr *msg, size_t len, int flags, int *addr_len); + ssize_t (*splice_read)(struct socket *sock, loff_t *ppos, + struct pipe_inode_info *pipe, size_t len, + unsigned int flags); void (*splice_eof)(struct socket *sock); int (*bind)(struct sock *sk, struct sockaddr_unsized *addr, int addr_len);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index d53d39be291a..fa445f20b427 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c@@ -3433,6 +3433,7 @@ struct proto tcp_prot = { .keepalive = tcp_set_keepalive, .recvmsg = tcp_recvmsg, .sendmsg = tcp_sendmsg, + .splice_read = tcp_splice_read, .splice_eof = tcp_splice_eof, .backlog_rcv = tcp_v4_do_rcv, .release_cb = tcp_release_cb,
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index e46a0efae012..277b954c524d 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c@@ -2295,6 +2295,7 @@ struct proto tcpv6_prot = { .keepalive = tcp_set_keepalive, .recvmsg = tcp_recvmsg, .sendmsg = tcp_sendmsg, + .splice_read = tcp_splice_read, .splice_eof = tcp_splice_eof, .backlog_rcv = tcp_v6_do_rcv, .release_cb = tcp_release_cb,
--
2.43.0