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-rw-r--r--target/linux/patches/3.12.37/patch-dietnet254
1 files changed, 254 insertions, 0 deletions
diff --git a/target/linux/patches/3.12.37/patch-dietnet b/target/linux/patches/3.12.37/patch-dietnet
new file mode 100644
index 000000000..c1ff7209c
--- /dev/null
+++ b/target/linux/patches/3.12.37/patch-dietnet
@@ -0,0 +1,254 @@
+https://lkml.org/lkml/2014/5/5/674
+Andi Kleen <ak@linux.intel.com>
+
+diff -Nur linux-3.12.20.orig/include/linux/tcp.h linux-3.12.20/include/linux/tcp.h
+--- linux-3.12.20.orig/include/linux/tcp.h 2014-05-15 09:56:19.000000000 +0200
++++ linux-3.12.20/include/linux/tcp.h 2014-05-30 14:41:11.000000000 +0200
+@@ -356,6 +356,9 @@
+ return (struct tcp_timewait_sock *)sk;
+ }
+
++extern void tcp_sock_destruct(struct sock *sk);
++
++#ifdef CONFIG_TCP_FASTOPEN
+ static inline bool tcp_passive_fastopen(const struct sock *sk)
+ {
+ return (sk->sk_state == TCP_SYN_RECV &&
+@@ -367,8 +370,6 @@
+ return foc->len != -1;
+ }
+
+-extern void tcp_sock_destruct(struct sock *sk);
+-
+ static inline int fastopen_init_queue(struct sock *sk, int backlog)
+ {
+ struct request_sock_queue *queue =
+@@ -388,4 +389,13 @@
+ return 0;
+ }
+
++#else
++static inline bool tcp_passive_fastopen(const struct sock *sk)
++{ return false; }
++static inline bool fastopen_cookie_present(struct tcp_fastopen_cookie *foc)
++{ return false; }
++static inline int fastopen_init_queue(struct sock *sk, int backlog)
++{ return 0; }
++#endif
++
+ #endif /* _LINUX_TCP_H */
+diff -Nur linux-3.12.20.orig/include/net/request_sock.h linux-3.12.20/include/net/request_sock.h
+--- linux-3.12.20.orig/include/net/request_sock.h 2014-05-15 09:56:19.000000000 +0200
++++ linux-3.12.20/include/net/request_sock.h 2014-05-30 14:42:55.000000000 +0200
+@@ -167,8 +167,14 @@
+
+ extern void __reqsk_queue_destroy(struct request_sock_queue *queue);
+ extern void reqsk_queue_destroy(struct request_sock_queue *queue);
++#ifdef CONFIG_TCP_FASTOPEN
+ extern void reqsk_fastopen_remove(struct sock *sk,
+ struct request_sock *req, bool reset);
++#else
++static inline void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req,
++ bool reset) {}
++#endif
++
+
+ static inline struct request_sock *
+ reqsk_queue_yank_acceptq(struct request_sock_queue *queue)
+diff -Nur linux-3.12.20.orig/include/net/tcp.h linux-3.12.20/include/net/tcp.h
+--- linux-3.12.20.orig/include/net/tcp.h 2014-05-15 09:56:19.000000000 +0200
++++ linux-3.12.20/include/net/tcp.h 2014-05-30 14:41:11.000000000 +0200
+@@ -250,7 +250,11 @@
+ extern int sysctl_tcp_retries2;
+ extern int sysctl_tcp_orphan_retries;
+ extern int sysctl_tcp_syncookies;
++#ifdef CONFIG_TCP_FASTOPEN
+ extern int sysctl_tcp_fastopen;
++#else
++#define sysctl_tcp_fastopen 0
++#endif
+ extern int sysctl_tcp_retrans_collapse;
+ extern int sysctl_tcp_stdurg;
+ extern int sysctl_tcp_rfc1337;
+@@ -1325,7 +1329,12 @@
+ size_t size;
+ int copied; /* queued in tcp_connect() */
+ };
++
++#ifdef CONFIG_TCP_FASTOPEN
+ void tcp_free_fastopen_req(struct tcp_sock *tp);
++#else
++static inline void tcp_free_fastopen_req(struct tcp_sock *tp) {}
++#endif
+
+ extern struct tcp_fastopen_context __rcu *tcp_fastopen_ctx;
+ int tcp_fastopen_reset_cipher(void *key, unsigned int len);
+diff -Nur linux-3.12.20.orig/net/Kconfig linux-3.12.20/net/Kconfig
+--- linux-3.12.20.orig/net/Kconfig 2014-05-15 09:56:19.000000000 +0200
++++ linux-3.12.20/net/Kconfig 2014-05-30 14:41:11.000000000 +0200
+@@ -53,8 +53,8 @@
+
+ config INET
+ bool "TCP/IP networking"
+- select CRYPTO
+- select CRYPTO_AES
++ select CRYPTO if TCP_FASTOPEN
++ select CRYPTO_AES if TCP_FASTOPEN
+ ---help---
+ These are the protocols used on the Internet and on most local
+ Ethernets. It is highly recommended to say Y here (this will enlarge
+diff -Nur linux-3.12.20.orig/net/core/request_sock.c linux-3.12.20/net/core/request_sock.c
+--- linux-3.12.20.orig/net/core/request_sock.c 2014-05-15 09:56:19.000000000 +0200
++++ linux-3.12.20/net/core/request_sock.c 2014-05-30 14:41:11.000000000 +0200
+@@ -131,6 +131,7 @@
+ kfree(lopt);
+ }
+
++#ifdef CONFIG_TCP_FASTOPEN
+ /*
+ * This function is called to set a Fast Open socket's "fastopen_rsk" field
+ * to NULL when a TFO socket no longer needs to access the request_sock.
+@@ -223,3 +224,4 @@
+ sock_put(lsk);
+ return;
+ }
++#endif
+diff -Nur linux-3.12.20.orig/net/ipv4/Kconfig linux-3.12.20/net/ipv4/Kconfig
+--- linux-3.12.20.orig/net/ipv4/Kconfig 2014-05-15 09:56:19.000000000 +0200
++++ linux-3.12.20/net/ipv4/Kconfig 2014-05-30 14:41:11.000000000 +0200
+@@ -307,6 +307,10 @@
+ the notion of a secure tunnel for IPSEC and then use routing protocol
+ on top.
+
++config TCP_FASTOPEN
++ bool "Enable TCP fastopen"
++ default n
++
+ config INET_AH
+ tristate "IP: AH transformation"
+ select XFRM_ALGO
+diff -Nur linux-3.12.20.orig/net/ipv4/Makefile linux-3.12.20/net/ipv4/Makefile
+--- linux-3.12.20.orig/net/ipv4/Makefile 2014-05-15 09:56:19.000000000 +0200
++++ linux-3.12.20/net/ipv4/Makefile 2014-05-30 14:41:11.000000000 +0200
+@@ -7,7 +7,7 @@
+ ip_output.o ip_sockglue.o inet_hashtables.o \
+ inet_timewait_sock.o inet_connection_sock.o \
+ tcp.o tcp_input.o tcp_output.o tcp_timer.o tcp_ipv4.o \
+- tcp_minisocks.o tcp_cong.o tcp_metrics.o tcp_fastopen.o \
++ tcp_minisocks.o tcp_cong.o tcp_metrics.o \
+ tcp_offload.o datagram.o raw.o udp.o udplite.o \
+ udp_offload.o arp.o icmp.o devinet.o af_inet.o igmp.o \
+ fib_frontend.o fib_semantics.o fib_trie.o \
+@@ -51,6 +51,7 @@
+ obj-$(CONFIG_TCP_CONG_LP) += tcp_lp.o
+ obj-$(CONFIG_TCP_CONG_YEAH) += tcp_yeah.o
+ obj-$(CONFIG_TCP_CONG_ILLINOIS) += tcp_illinois.o
++obj-$(CONFIG_TCP_FASTOPEN) += tcp_fastopen.o
+ obj-$(CONFIG_MEMCG_KMEM) += tcp_memcontrol.o
+ obj-$(CONFIG_NETLABEL) += cipso_ipv4.o
+
+diff -Nur linux-3.12.20.orig/net/ipv4/sysctl_net_ipv4.c linux-3.12.20/net/ipv4/sysctl_net_ipv4.c
+--- linux-3.12.20.orig/net/ipv4/sysctl_net_ipv4.c 2014-05-15 09:56:19.000000000 +0200
++++ linux-3.12.20/net/ipv4/sysctl_net_ipv4.c 2014-05-30 14:41:11.000000000 +0200
+@@ -236,6 +236,7 @@
+ return 0;
+ }
+
++#ifdef CONFIG_TCP_FASTOPEN
+ static int proc_tcp_fastopen_key(struct ctl_table *ctl, int write,
+ void __user *buffer, size_t *lenp,
+ loff_t *ppos)
+@@ -277,6 +278,7 @@
+ kfree(tbl.data);
+ return ret;
+ }
++#endif
+
+ static struct ctl_table ipv4_table[] = {
+ {
+@@ -426,6 +428,7 @@
+ .proc_handler = proc_dointvec
+ },
+ #endif
++#ifdef CONFIG_TCP_FASTOPEN
+ {
+ .procname = "tcp_fastopen",
+ .data = &sysctl_tcp_fastopen,
+@@ -439,6 +442,7 @@
+ .maxlen = ((TCP_FASTOPEN_KEY_LENGTH * 2) + 10),
+ .proc_handler = proc_tcp_fastopen_key,
+ },
++#endif
+ {
+ .procname = "tcp_tw_recycle",
+ .data = &tcp_death_row.sysctl_tw_recycle,
+diff -Nur linux-3.12.20.orig/net/ipv4/tcp.c linux-3.12.20/net/ipv4/tcp.c
+--- linux-3.12.20.orig/net/ipv4/tcp.c 2014-05-15 09:56:19.000000000 +0200
++++ linux-3.12.20/net/ipv4/tcp.c 2014-05-30 14:41:11.000000000 +0200
+@@ -992,6 +992,7 @@
+ return tmp;
+ }
+
++#ifdef CONFIG_TCP_FASTOPEN
+ void tcp_free_fastopen_req(struct tcp_sock *tp)
+ {
+ if (tp->fastopen_req != NULL) {
+@@ -1025,6 +1026,7 @@
+ tcp_free_fastopen_req(tp);
+ return err;
+ }
++#endif
+
+ int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+ size_t size)
+@@ -1040,6 +1042,7 @@
+ lock_sock(sk);
+
+ flags = msg->msg_flags;
++#ifdef CONFIG_TCP_FASTOPEN
+ if (flags & MSG_FASTOPEN) {
+ err = tcp_sendmsg_fastopen(sk, msg, &copied_syn, size);
+ if (err == -EINPROGRESS && copied_syn > 0)
+@@ -1048,6 +1051,7 @@
+ goto out_err;
+ offset = copied_syn;
+ }
++#endif
+
+ timeo = sock_sndtimeo(sk, flags & MSG_DONTWAIT);
+
+diff -Nur linux-3.12.20.orig/net/ipv4/tcp_ipv4.c linux-3.12.20/net/ipv4/tcp_ipv4.c
+--- linux-3.12.20.orig/net/ipv4/tcp_ipv4.c 2014-05-15 09:56:19.000000000 +0200
++++ linux-3.12.20/net/ipv4/tcp_ipv4.c 2014-05-30 14:41:11.000000000 +0200
+@@ -1259,6 +1259,7 @@
+ };
+ #endif
+
++#ifdef CONFIG_TCP_FASTOPEN
+ static bool tcp_fastopen_check(struct sock *sk, struct sk_buff *skb,
+ struct request_sock *req,
+ struct tcp_fastopen_cookie *foc,
+@@ -1439,6 +1440,23 @@
+ WARN_ON(req->sk == NULL);
+ return 0;
+ }
++#else
++static bool tcp_fastopen_check(struct sock *sk, struct sk_buff *skb,
++ struct request_sock *req,
++ struct tcp_fastopen_cookie *foc,
++ struct tcp_fastopen_cookie *valid_foc)
++{
++ return false;
++}
++
++static int tcp_v4_conn_req_fastopen(struct sock *sk,
++ struct sk_buff *skb,
++ struct sk_buff *skb_synack,
++ struct request_sock *req)
++{
++ return 0;
++}
++#endif
+
+ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
+ {