kernel: drop everything not on kernel version 4.14

 * Remove testing patches for kernel version 4.19
 * remove targets ar7, ixp4xx, orion
Those targets are still on kernel 4.9, patches for 4.14 were not ready
in time. They may be readded once people prepare and test patches for
kernel 4.14.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

1 files changed, 0 insertions, 158 deletions

diff --git a/target/linux/generic/backport-4.9/024-7-net-reorganize-struct-sock-for-better-data-locality.patch b/target/linux/generic/backport-4.9/024-7-net-reorganize-struct-sock-for-better-data-locality.patch
deleted file mode 100644
index a43b4037fe..0000000000
--- a/target/linux/generic/backport-4.9/024-7-net-reorganize-struct-sock-for-better-data-locality.patch
+++ /dev/null
@@ -1,158 +0,0 @@
-From 9115e8cd2a0c6eaaa900c462721f12e1d45f326c Mon Sep 17 00:00:00 2001
-From: Eric Dumazet <edumazet@google.com>
-Date: Sat, 3 Dec 2016 11:14:56 -0800
-Subject: [PATCH 07/10] net: reorganize struct sock for better data locality
-
-Group fields used in TX path, and keep some cache lines mostly read
-to permit sharing among cpus.
-
-Gained two 4 bytes holes on 64bit arches.
-
-Added a place holder for tcp tsq_flags, next to sk_wmem_alloc
-to speed up tcp_wfree() in the following patch.
-
-I have not added ____cacheline_aligned_in_smp, this might be done later.
-I prefer doing this once inet and tcp/udp sockets reorg is also done.
-
-Tested with both TCP and UDP.
-
-UDP receiver performance under flood increased by ~20 % :
-Accessing sk_filter/sk_wq/sk_napi_id no longer stalls because sk_drops
-was moved away from a critical cache line, now mostly read and shared.
-
-	/* --- cacheline 4 boundary (256 bytes) --- */
-	unsigned int               sk_napi_id;           /* 0x100   0x4 */
-	int                        sk_rcvbuf;            /* 0x104   0x4 */
-	struct sk_filter *         sk_filter;            /* 0x108   0x8 */
-	union {
-		struct socket_wq * sk_wq;                /*         0x8 */
-		struct socket_wq * sk_wq_raw;            /*         0x8 */
-	};                                               /* 0x110   0x8 */
-	struct xfrm_policy *       sk_policy[2];         /* 0x118  0x10 */
-	struct dst_entry *         sk_rx_dst;            /* 0x128   0x8 */
-	struct dst_entry *         sk_dst_cache;         /* 0x130   0x8 */
-	atomic_t                   sk_omem_alloc;        /* 0x138   0x4 */
-	int                        sk_sndbuf;            /* 0x13c   0x4 */
-	/* --- cacheline 5 boundary (320 bytes) --- */
-	int                        sk_wmem_queued;       /* 0x140   0x4 */
-	atomic_t                   sk_wmem_alloc;        /* 0x144   0x4 */
-	long unsigned int          sk_tsq_flags;         /* 0x148   0x8 */
-	struct sk_buff *           sk_send_head;         /* 0x150   0x8 */
-	struct sk_buff_head        sk_write_queue;       /* 0x158  0x18 */
-	__s32                      sk_peek_off;          /* 0x170   0x4 */
-	int                        sk_write_pending;     /* 0x174   0x4 */
-	long int                   sk_sndtimeo;          /* 0x178   0x8 */
-
-Signed-off-by: Eric Dumazet <edumazet@google.com>
-Tested-by: Paolo Abeni <pabeni@redhat.com>
-Signed-off-by: David S. Miller <davem@davemloft.net>
----
- include/net/sock.h | 51 +++++++++++++++++++++++++++------------------------
- 1 file changed, 27 insertions(+), 24 deletions(-)
-
---- a/include/net/sock.h
-+++ b/include/net/sock.h
-@@ -344,6 +344,9 @@ struct sock {
- #define sk_rxhash		__sk_common.skc_rxhash
- 
- 	socket_lock_t		sk_lock;
-+	atomic_t		sk_drops;
-+	int			sk_rcvlowat;
-+	struct sk_buff_head	sk_error_queue;
- 	struct sk_buff_head	sk_receive_queue;
- 	/*
- 	 * The backlog queue is special, it is always used with
-@@ -360,14 +363,13 @@ struct sock {
- 		struct sk_buff	*tail;
- 	} sk_backlog;
- #define sk_rmem_alloc sk_backlog.rmem_alloc
--	int			sk_forward_alloc;
- 
--	__u32			sk_txhash;
-+	int			sk_forward_alloc;
- #ifdef CONFIG_NET_RX_BUSY_POLL
--	unsigned int		sk_napi_id;
- 	unsigned int		sk_ll_usec;
-+	/* ===== mostly read cache line ===== */
-+	unsigned int		sk_napi_id;
- #endif
--	atomic_t		sk_drops;
- 	int			sk_rcvbuf;
- 
- 	struct sk_filter __rcu	*sk_filter;
-@@ -380,11 +382,30 @@ struct sock {
- #endif
- 	struct dst_entry	*sk_rx_dst;
- 	struct dst_entry __rcu	*sk_dst_cache;
--	/* Note: 32bit hole on 64bit arches */
--	atomic_t		sk_wmem_alloc;
- 	atomic_t		sk_omem_alloc;
- 	int			sk_sndbuf;
-+
-+	/* ===== cache line for TX ===== */
-+	int			sk_wmem_queued;
-+	atomic_t		sk_wmem_alloc;
-+	unsigned long		sk_tsq_flags;
-+	struct sk_buff		*sk_send_head;
- 	struct sk_buff_head	sk_write_queue;
-+	__s32			sk_peek_off;
-+	int			sk_write_pending;
-+	long			sk_sndtimeo;
-+	struct timer_list	sk_timer;
-+	__u32			sk_priority;
-+	__u32			sk_mark;
-+	u32			sk_pacing_rate; /* bytes per second */
-+	u32			sk_max_pacing_rate;
-+	struct page_frag	sk_frag;
-+	netdev_features_t	sk_route_caps;
-+	netdev_features_t	sk_route_nocaps;
-+	int			sk_gso_type;
-+	unsigned int		sk_gso_max_size;
-+	gfp_t			sk_allocation;
-+	__u32			sk_txhash;
- 
- 	/*
- 	 * Because of non atomicity rules, all
-@@ -400,31 +421,17 @@ struct sock {
- #define SK_PROTOCOL_MAX U8_MAX
- 	kmemcheck_bitfield_end(flags);
- 
--	int			sk_wmem_queued;
--	gfp_t			sk_allocation;
--	u32			sk_pacing_rate; /* bytes per second */
--	u32			sk_max_pacing_rate;
--	netdev_features_t	sk_route_caps;
--	netdev_features_t	sk_route_nocaps;
--	int			sk_gso_type;
--	unsigned int		sk_gso_max_size;
- 	u16			sk_gso_max_segs;
--	int			sk_rcvlowat;
- 	unsigned long	        sk_lingertime;
--	struct sk_buff_head	sk_error_queue;
- 	struct proto		*sk_prot_creator;
- 	rwlock_t		sk_callback_lock;
- 	int			sk_err,
- 				sk_err_soft;
- 	u32			sk_ack_backlog;
- 	u32			sk_max_ack_backlog;
--	__u32			sk_priority;
--	__u32			sk_mark;
- 	struct pid		*sk_peer_pid;
- 	const struct cred	*sk_peer_cred;
- 	long			sk_rcvtimeo;
--	long			sk_sndtimeo;
--	struct timer_list	sk_timer;
- 	ktime_t			sk_stamp;
- #if BITS_PER_LONG==32
- 	seqlock_t		sk_stamp_seq;
-@@ -434,10 +441,6 @@ struct sock {
- 	u32			sk_tskey;
- 	struct socket		*sk_socket;
- 	void			*sk_user_data;
--	struct page_frag	sk_frag;
--	struct sk_buff		*sk_send_head;
--	__s32			sk_peek_off;
--	int			sk_write_pending;
- #ifdef CONFIG_SECURITY
- 	void			*sk_security;
- #endif