kernel: Make the patches apply on top of 4.19

This makes the patches which were just copied in the previous commit
apply on top of kernel 4.19.

The patches in the backports-4.19 folder were checked if they are really
in kernel 4.19 based on the title and only removed if they were found in
the upstream kernel.

The following additional patches form the pending folder went into
upstream Linux 4.19:
pending-4.19/171-usb-dwc2-Fix-inefficient-copy-of-unaligned-buffers.patch
pending-4.19/190-2-5-e1000e-Fix-wrong-comment-related-to-link-detection.patch
pending-4.19/478-mtd-spi-nor-Add-support-for-XM25QH64A-and-XM25QH128A.patch
pending-4.19/479-mtd-spi-nor-add-eon-en25qh32.patch
pending-4.19/950-tty-serial-exar-generalize-rs485-setup.patch
pending-4.19/340-MIPS-mm-remove-mips_dma_mapping_error.patch

Bigger changes were introduced to the m25p80 spi nor driver, as far as I
saw it in the new code, it now has the functionality provided in this
patch:
pending-4.19/450-mtd-m25p80-allow-fallback-from-spi_flash_read-to-reg.patch

Part of this patch went upstream independent of OpenWrt:
hack-4.19/220-gc_sections.patch
This patch was reworked to match the changes done upstream.

The MIPS DMA API changed a lot, this patch was rewritten to match the
new DMA handling:
pending-4.19/341-MIPS-mm-remove-no-op-dma_map_ops-where-possible.patch

I did bigger manual changes to the following patches and I am not 100% sure if they are all correct:
pending-4.19/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch
pending-4.19/411-mtd-partial_eraseblock_write.patch
pending-4.19/600-netfilter_conntrack_flush.patch
pending-4.19/611-netfilter_match_bypass_default_table.patch
pending-4.19/670-ipv6-allow-rejecting-with-source-address-failed-policy.patch
hack-4.19/211-host_tools_portability.patch
hack-4.19/221-module_exports.patch
hack-4.19/321-powerpc_crtsavres_prereq.patch
hack-4.19/902-debloat_proc.patch

This is based on patchset from Marko Ratkaj <marko.ratkaj@sartura.hr>

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 39 insertions, 47 deletions

diff --git a/target/linux/generic/pending-4.19/670-ipv6-allow-rejecting-with-source-address-failed-policy.patch b/target/linux/generic/pending-4.19/670-ipv6-allow-rejecting-with-source-address-failed-policy.patch
index 1397580382..a022c2c556 100644
--- a/target/linux/generic/pending-4.19/670-ipv6-allow-rejecting-with-source-address-failed-policy.patch
+++ b/target/linux/generic/pending-4.19/670-ipv6-allow-rejecting-with-source-address-failed-policy.patch
@@ -20,9 +20,9 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
 
 --- a/include/net/netns/ipv6.h
 +++ b/include/net/netns/ipv6.h
-@@ -69,6 +69,7 @@ struct netns_ipv6 {
- #ifdef CONFIG_IPV6_MULTIPLE_TABLES
- 	bool			 fib6_has_custom_rules;
+@@ -78,6 +78,7 @@ struct netns_ipv6 {
+ 	unsigned int		fib6_rules_require_fldissect;
+ 	bool			fib6_has_custom_rules;
  	struct rt6_info         *ip6_prohibit_entry;
 +	struct rt6_info		*ip6_policy_failed_entry;
  	struct rt6_info         *ip6_blk_hole_entry;
@@ -30,7 +30,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  	struct fib_rules_ops    *fib6_rules_ops;
 --- a/include/uapi/linux/fib_rules.h
 +++ b/include/uapi/linux/fib_rules.h
-@@ -73,6 +73,10 @@ enum {
+@@ -82,6 +82,10 @@ enum {
  	FR_ACT_BLACKHOLE,	/* Drop without notification */
  	FR_ACT_UNREACHABLE,	/* Drop with ENETUNREACH */
  	FR_ACT_PROHIBIT,	/* Drop with EACCES */
@@ -43,7 +43,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  
 --- a/include/uapi/linux/rtnetlink.h
 +++ b/include/uapi/linux/rtnetlink.h
-@@ -221,6 +221,7 @@ enum {
+@@ -228,6 +228,7 @@ enum {
  	RTN_THROW,		/* Not in this table		*/
  	RTN_NAT,		/* Translate this address	*/
  	RTN_XRESOLVE,		/* Use external resolver	*/
@@ -66,7 +66,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  static void rt_fibinfo_free(struct rtable __rcu **rtp)
 --- a/net/ipv4/fib_trie.c
 +++ b/net/ipv4/fib_trie.c
-@@ -2460,6 +2460,7 @@ static const char *const rtn_type_names[
+@@ -2465,6 +2465,7 @@ static const char *const rtn_type_names[
  	[RTN_THROW] = "THROW",
  	[RTN_NAT] = "NAT",
  	[RTN_XRESOLVE] = "XRESOLVE",
@@ -76,7 +76,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  static inline const char *rtn_type(char *buf, size_t len, unsigned int t)
 --- a/net/ipv4/ipmr.c
 +++ b/net/ipv4/ipmr.c
-@@ -161,6 +161,7 @@ static int ipmr_rule_action(struct fib_r
+@@ -177,6 +177,7 @@ static int ipmr_rule_action(struct fib_r
  	case FR_ACT_UNREACHABLE:
  		return -ENETUNREACH;
  	case FR_ACT_PROHIBIT:
@@ -86,7 +86,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  	default:
 --- a/net/ipv6/fib6_rules.c
 +++ b/net/ipv6/fib6_rules.c
-@@ -121,6 +121,10 @@ static int fib6_rule_action(struct fib_r
+@@ -221,6 +221,10 @@ static int __fib6_rule_action(struct fib
  		err = -EACCES;
  		rt = net->ipv6.ip6_prohibit_entry;
  		goto discard_pkt;
@@ -99,7 +99,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  	tb_id = fib_rule_get_table(rule, arg);
 --- a/net/ipv6/ip6mr.c
 +++ b/net/ipv6/ip6mr.c
-@@ -168,6 +168,8 @@ static int ip6mr_rule_action(struct fib_
+@@ -159,6 +159,8 @@ static int ip6mr_rule_action(struct fib_
  		return -ENETUNREACH;
  	case FR_ACT_PROHIBIT:
  		return -EACCES;
@@ -110,7 +110,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  		return -EINVAL;
 --- a/net/ipv6/route.c
 +++ b/net/ipv6/route.c
-@@ -91,6 +91,8 @@ static int		ip6_pkt_discard(struct sk_bu
+@@ -97,6 +97,8 @@ static int		ip6_pkt_discard(struct sk_bu
  static int		ip6_pkt_discard_out(struct net *net, struct sock *sk, struct sk_buff *skb);
  static int		ip6_pkt_prohibit(struct sk_buff *skb);
  static int		ip6_pkt_prohibit_out(struct net *net, struct sock *sk, struct sk_buff *skb);
@@ -119,8 +119,8 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  static void		ip6_link_failure(struct sk_buff *skb);
  static void		ip6_rt_update_pmtu(struct dst_entry *dst, struct sock *sk,
  					   struct sk_buff *skb, u32 mtu);
-@@ -321,6 +323,21 @@ static const struct rt6_info ip6_prohibi
- 	.rt6i_ref	= ATOMIC_INIT(1),
+@@ -324,6 +326,18 @@ static const struct rt6_info ip6_prohibi
+ 	.rt6i_flags	= (RTF_REJECT | RTF_NONEXTHOP),
  };
  
 +static const struct rt6_info ip6_policy_failed_entry_template = {
@@ -133,27 +133,31 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
 +		.output		= ip6_pkt_policy_failed_out,
 +	},
 +	.rt6i_flags	= (RTF_REJECT | RTF_NONEXTHOP),
-+	.rt6i_protocol	= RTPROT_KERNEL,
-+	.rt6i_metric	= ~(u32) 0,
-+	.rt6i_ref	= ATOMIC_INIT(1),
 +};
 +
  static const struct rt6_info ip6_blk_hole_entry_template = {
  	.dst = {
  		.__refcnt	= ATOMIC_INIT(1),
-@@ -2046,6 +2063,11 @@ static struct rt6_info *ip6_route_info_c
- 			rt->dst.output = ip6_pkt_prohibit_out;
- 			rt->dst.input = ip6_pkt_prohibit;
- 			break;
-+		case RTN_POLICY_FAILED:
-+			rt->dst.error = -EACCES;
-+			rt->dst.output = ip6_pkt_policy_failed_out;
-+			rt->dst.input = ip6_pkt_policy_failed;
-+			break;
- 		case RTN_THROW:
- 		case RTN_UNREACHABLE:
- 		default:
-@@ -2771,6 +2793,17 @@ static int ip6_pkt_prohibit_out(struct n
+@@ -901,6 +915,7 @@ static const int fib6_prop[RTN_MAX + 1]
+ 	[RTN_BLACKHOLE]	= -EINVAL,
+ 	[RTN_UNREACHABLE] = -EHOSTUNREACH,
+ 	[RTN_PROHIBIT]	= -EACCES,
++	[RTN_POLICY_FAILED] = -EACCES,
+ 	[RTN_THROW]	= -EAGAIN,
+ 	[RTN_NAT]	= -EINVAL,
+ 	[RTN_XRESOLVE]	= -EINVAL,
+@@ -938,6 +953,10 @@ static void ip6_rt_init_dst_reject(struc
+ 		rt->dst.output = ip6_pkt_prohibit_out;
+ 		rt->dst.input = ip6_pkt_prohibit;
+ 		break;
++	case RTN_POLICY_FAILED:
++		rt->dst.output = ip6_pkt_policy_failed_out;
++		rt->dst.input = ip6_pkt_policy_failed;
++		break;
+ 	case RTN_THROW:
+ 	case RTN_UNREACHABLE:
+ 	default:
+@@ -3745,6 +3764,17 @@ static int ip6_pkt_prohibit_out(struct n
  	return ip6_pkt_drop(skb, ICMPV6_ADM_PROHIBITED, IPSTATS_MIB_OUTNOROUTES);
  }
  
@@ -171,7 +175,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  /*
   *	Allocate a dst for local (unicast / anycast) address.
   */
-@@ -3007,7 +3040,8 @@ static int rtm_to_fib6_config(struct sk_
+@@ -4192,7 +4222,8 @@ static int rtm_to_fib6_config(struct sk_
  	if (rtm->rtm_type == RTN_UNREACHABLE ||
  	    rtm->rtm_type == RTN_BLACKHOLE ||
  	    rtm->rtm_type == RTN_PROHIBIT ||
@@ -181,17 +185,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  		cfg->fc_flags |= RTF_REJECT;
  
  	if (rtm->rtm_type == RTN_LOCAL)
-@@ -3502,6 +3536,9 @@ static int rt6_fill_node(struct net *net
- 		case -EACCES:
- 			rtm->rtm_type = RTN_PROHIBIT;
- 			break;
-+		case -EPERM:
-+			rtm->rtm_type = RTN_POLICY_FAILED;
-+			break;
- 		case -EAGAIN:
- 			rtm->rtm_type = RTN_THROW;
- 			break;
-@@ -3820,6 +3857,8 @@ static int ip6_route_dev_notify(struct n
+@@ -5031,6 +5062,8 @@ static int ip6_route_dev_notify(struct n
  #ifdef CONFIG_IPV6_MULTIPLE_TABLES
  		net->ipv6.ip6_prohibit_entry->dst.dev = dev;
  		net->ipv6.ip6_prohibit_entry->rt6i_idev = in6_dev_get(dev);
@@ -200,7 +194,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  		net->ipv6.ip6_blk_hole_entry->dst.dev = dev;
  		net->ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(dev);
  #endif
-@@ -3831,6 +3870,7 @@ static int ip6_route_dev_notify(struct n
+@@ -5042,6 +5075,7 @@ static int ip6_route_dev_notify(struct n
  		in6_dev_put_clear(&net->ipv6.ip6_null_entry->rt6i_idev);
  #ifdef CONFIG_IPV6_MULTIPLE_TABLES
  		in6_dev_put_clear(&net->ipv6.ip6_prohibit_entry->rt6i_idev);
@@ -208,7 +202,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  		in6_dev_put_clear(&net->ipv6.ip6_blk_hole_entry->rt6i_idev);
  #endif
  	}
-@@ -4047,6 +4087,17 @@ static int __net_init ip6_route_net_init
+@@ -5236,6 +5270,15 @@ static int __net_init ip6_route_net_init
  	net->ipv6.ip6_blk_hole_entry->dst.ops = &net->ipv6.ip6_dst_ops;
  	dst_init_metrics(&net->ipv6.ip6_blk_hole_entry->dst,
  			 ip6_template_metrics, true);
@@ -218,15 +212,13 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
 +			sizeof(*net->ipv6.ip6_policy_failed_entry), GFP_KERNEL);
 +	if (!net->ipv6.ip6_policy_failed_entry)
 +		goto out_ip6_blk_hole_entry;
-+	net->ipv6.ip6_policy_failed_entry->dst.path =
-+		(struct dst_entry *)net->ipv6.ip6_policy_failed_entry;
 +	net->ipv6.ip6_policy_failed_entry->dst.ops = &net->ipv6.ip6_dst_ops;
 +	dst_init_metrics(&net->ipv6.ip6_policy_failed_entry->dst,
 +			 ip6_template_metrics, true);
  #endif
  
  	net->ipv6.sysctl.flush_delay = 0;
-@@ -4065,6 +4116,8 @@ out:
+@@ -5254,6 +5297,8 @@ out:
  	return ret;
  
  #ifdef CONFIG_IPV6_MULTIPLE_TABLES
@@ -235,7 +227,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  out_ip6_prohibit_entry:
  	kfree(net->ipv6.ip6_prohibit_entry);
  out_ip6_null_entry:
-@@ -4082,6 +4135,7 @@ static void __net_exit ip6_route_net_exi
+@@ -5274,6 +5319,7 @@ static void __net_exit ip6_route_net_exi
  #ifdef CONFIG_IPV6_MULTIPLE_TABLES
  	kfree(net->ipv6.ip6_prohibit_entry);
  	kfree(net->ipv6.ip6_blk_hole_entry);
@@ -243,7 +235,7 @@ Signed-off-by: Jonas Gorski <jogo@openwrt.org>
  #endif
  	dst_entries_destroy(&net->ipv6.ip6_dst_ops);
  }
-@@ -4155,6 +4209,9 @@ void __init ip6_route_init_special_entri
+@@ -5350,6 +5396,9 @@ void __init ip6_route_init_special_entri
  	init_net.ipv6.ip6_prohibit_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);
  	init_net.ipv6.ip6_blk_hole_entry->dst.dev = init_net.loopback_dev;
  	init_net.ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev);