kernel: add support for kernel 5.4

The following patches were removed because they are integrated in the upstream kernel 5.4:
 * backport-5.4/047-v4.21-mtd-keep-original-flags-for-every-struct-mtd_info.patch
 * backport-5.4/048-v4.21-mtd-improve-calculating-partition-boundaries-when-ch.patch
 * backport-5.4/080-v5.1-0001-bcma-keep-a-direct-pointer-to-the-struct-device.patch
 * backport-5.4/080-v5.1-0002-bcma-use-dev_-printing-functions.patch
 * backport-5.4/095-Allow-class-e-address-assignment-via-ifconfig-ioctl.patch
 * backport-5.4/101-arm-cns3xxx-use-actual-size-reads-for-PCIe.patch
 * backport-5.4/200-v5.2-usb-dwc2-Set-lpm-mode-parameters-depend-on-HW-configuration.patch
 * backport-5.4/210-arm64-sve-Disentangle-uapi-asm-ptrace.h-from-uapi-as.patch
 * backport-5.4/380-v5.3-net-sched-Introduce-act_ctinfo-action.patch
 * backport-5.4/450-v5.0-mtd-spinand-winbond-Add-support-for-W25N01GV.patch
 * backport-5.4/451-v5.0-mtd-spinand-Add-initial-support-for-Toshiba-TC58CVG2.patch
 * backport-5.4/452-v5.0-mtd-spinand-add-support-for-GigaDevice-GD5FxGQ4xA.patch
 * backport-5.4/455-v5.1-mtd-spinand-Add-support-for-all-Toshiba-Memory-produ.patch
 * backport-5.4/456-v5.1-mtd-spinand-Add-support-for-GigaDevice-GD5F1GQ4UExxG.patch
 * backport-5.4/460-v5.0-mtd-spi-nor-Add-support-for-mx25u12835f.patch
 * backport-5.4/460-v5.3-mtd-spinand-Define-macros-for-page-read-ops-with-thr.patch
 * backport-5.4/461-v5.3-mtd-spinand-Add-support-for-two-byte-device-IDs.patch
 * backport-5.4/462-v5.3-mtd-spinand-Add-support-for-GigaDevice-GD5F1GQ4UFxxG.patch
 * backport-5.4/463-v5.3-mtd-spinand-Add-initial-support-for-Paragon-PN26G0xA.patch
 * backport-5.4/700-v5.1-net-phylink-only-call-mac_config-during-resolve-when.patch
 * backport-5.4/701-v5.2-net-phylink-ensure-inband-AN-works-correctly.patch
 * backport-5.4/702-v4.20-net-ethernet-Add-helper-for-MACs-which-support-asym-.patch
 * backport-5.4/703-v4.20-net-ethernet-Add-helper-for-set_pauseparam-for-Asym-.patch
 * backport-5.4/704-v4.20-net-phy-Stop-with-excessive-soft-reset.patch
 * backport-5.4/705-v5.1-net-phy-provide-full-set-of-accessor-functions-to-MM.patch
 * backport-5.4/706-v5.1-net-phy-add-register-modifying-helpers-returning-1-o.patch
 * backport-5.4/707-v5.1-net-phy-add-genphy_c45_check_and_restart_aneg.patch
 * backport-5.4/708-v5.3-net-phylink-remove-netdev-from-phylink-mii-ioctl-emu.patch
 * backport-5.4/709-v5.3-net-phylink-support-for-link-gpio-interrupt.patch
 * backport-5.4/710-v5.3-net-phy-allow-Clause-45-access-via-mii-ioctl.patch
 * backport-5.4/711-v5.3-net-sfp-add-mandatory-attach-detach-methods-for-sfp-.patch
 * backport-5.4/712-v5.3-net-sfp-remove-sfp-bus-use-of-netdevs.patch
 * backport-5.4/713-v5.2-net-phylink-avoid-reducing-support-mask.patch
 * backport-5.4/714-v5.3-net-sfp-Stop-SFP-polling-and-interrupt-handling-duri.patch
 * backport-5.4/715-v5.3-net-phylink-don-t-start-and-stop-SGMII-PHYs-in-SFP-m.patch
 * backport-5.4/740-v5.5-net-phy-avoid-matching-all-ones-clause-45-PHY-IDs.patch
 * backport-5.4/741-v5.5-net-phylink-fix-link-mode-modification-in-PHY-mode.patch
 * pending-5.4/103-MIPS-perf-ath79-Fix-perfcount-IRQ-assignment.patch
 * pending-5.4/131-spi-use-gpio_set_value_cansleep-for-setting-chipsele.patch
 * pending-5.4/132-spi-spi-gpio-fix-crash-when-num-chipselects-is-0.patch
 * pending-5.4/220-optimize_inlining.patch
 * pending-5.4/341-MIPS-mm-remove-no-op-dma_map_ops-where-possible.patch
 * pending-5.4/475-mtd-spi-nor-Add-Winbond-w25q128jv-support.patch
 * pending-5.4/477-mtd-add-spi-nor-add-mx25u3235f.patch
 * pending-5.4/479-mtd-spi-nor-add-eon-en25qh64.patch

Some bigger changes were done to this feature and we did not port this patch yet:
 * hack-5.4/207-disable-modorder.patch

This depends on BOOTMEM which was removed from the kernel, this needs some bigger changes:
 * hack-5.4/930-crashlog.patch

A different version of the FPU disable patch was merged upstream, OpenWrt needs some adaptations.
 * pending-5.4/304-mips_disable_fpu.patch

- no crashlog support yet as a required file got deleted upstream
- Removed patch below, which is now seen as a recursive dependency [1]
- Removed patch below due to build error [2]
- fix still required to avoid identical function def [3]
- Fixes included from Blocktrron
- Fixes included from Chunkeey
- Fix included from nbd regarding "dst leak in Flow Offload"

[1] target/linux/generic/hack-5.4/260-crypto_test_dependencies.patch
[2] target/linux/generic/hack-5.4/207-disable-modorder.patch
[3] target/linux/generic/pending-5.4/613-netfilter_optional_tcp_window_check.patch

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: David Bauer <mail@david-bauer.net>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 47 insertions, 11 deletions

diff --git a/target/linux/generic/hack-5.4/650-netfilter-add-xt_OFFLOAD-target.patch b/target/linux/generic/hack-5.4/650-netfilter-add-xt_OFFLOAD-target.patch
index 55247bc2a3..3a9d64dd4a 100644
--- a/target/linux/generic/hack-5.4/650-netfilter-add-xt_OFFLOAD-target.patch
+++ b/target/linux/generic/hack-5.4/650-netfilter-add-xt_OFFLOAD-target.patch
@@ -8,7 +8,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 
 --- a/net/ipv4/netfilter/Kconfig
 +++ b/net/ipv4/netfilter/Kconfig
-@@ -63,8 +63,6 @@ config NF_TABLES_ARP
+@@ -56,8 +56,6 @@ config NF_TABLES_ARP
  	help
  	  This option enables the ARP support for nf_tables.
  
@@ -17,7 +17,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  config NF_FLOW_TABLE_IPV4
  	tristate "Netfilter flow table IPv4 module"
  	depends on NF_FLOW_TABLE
-@@ -73,6 +71,8 @@ config NF_FLOW_TABLE_IPV4
+@@ -66,6 +64,8 @@ config NF_FLOW_TABLE_IPV4
  
  	  To compile it as a module, choose M here.
  
@@ -28,7 +28,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  	depends on !NF_CONNTRACK || NF_CONNTRACK
 --- a/net/ipv6/netfilter/Kconfig
 +++ b/net/ipv6/netfilter/Kconfig
-@@ -80,7 +80,6 @@ config NFT_FIB_IPV6
+@@ -45,7 +45,6 @@ config NFT_FIB_IPV6
  	  multicast or blackhole.
  
  endif # NF_TABLES_IPV6
@@ -36,7 +36,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  
  config NF_FLOW_TABLE_IPV6
  	tristate "Netfilter flow table IPv6 module"
-@@ -90,6 +89,8 @@ config NF_FLOW_TABLE_IPV6
+@@ -55,6 +54,8 @@ config NF_FLOW_TABLE_IPV6
  
  	  To compile it as a module, choose M here.
  
@@ -47,7 +47,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  	depends on !NF_CONNTRACK || NF_CONNTRACK
 --- a/net/netfilter/Kconfig
 +++ b/net/netfilter/Kconfig
-@@ -693,8 +693,6 @@ config NFT_FIB_NETDEV
+@@ -702,8 +702,6 @@ config NFT_FIB_NETDEV
  
  endif # NF_TABLES_NETDEV
  
@@ -56,7 +56,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  config NF_FLOW_TABLE_INET
  	tristate "Netfilter flow table mixed IPv4/IPv6 module"
  	depends on NF_FLOW_TABLE
-@@ -703,11 +701,12 @@ config NF_FLOW_TABLE_INET
+@@ -712,11 +710,12 @@ config NF_FLOW_TABLE_INET
  
  	  To compile it as a module, choose M here.
  
@@ -70,7 +70,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  	help
  	  This option adds the flow table core infrastructure.
  
-@@ -996,6 +995,15 @@ config NETFILTER_XT_TARGET_NOTRACK
+@@ -1005,6 +1004,15 @@ config NETFILTER_XT_TARGET_NOTRACK
  	depends on NETFILTER_ADVANCED
  	select NETFILTER_XT_TARGET_CT
  
@@ -98,7 +98,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  obj-$(CONFIG_NETFILTER_XT_TARGET_LED) += xt_LED.o
 --- /dev/null
 +++ b/net/netfilter/xt_FLOWOFFLOAD.c
-@@ -0,0 +1,422 @@
+@@ -0,0 +1,427 @@
 +/*
 + * Copyright (C) 2018 Felix Fietkau <nbd@nbd.name>
 + *
@@ -143,6 +143,10 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +	return NF_ACCEPT;
 +}
 +
++int nf_flow_table_iterate(struct nf_flowtable *flow_table,
++			   void (*iter)(struct flow_offload *flow, void *data),
++			   void *data);
++
 +static int
 +xt_flowoffload_create_hook(struct net_device *dev)
 +{
@@ -240,11 +244,12 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +	struct flow_offload_tuple *tuple = &flow->tuplehash[0].tuple;
 +	struct xt_flowoffload_hook *hook;
 +	bool *found = data;
++	struct rtable *rt = (struct rtable *)tuple->dst_cache;
 +
 +	spin_lock_bh(&hooks_lock);
 +	hlist_for_each_entry(hook, &hooks, list) {
 +		if (hook->ops.dev->ifindex != tuple->iifidx &&
-+		    hook->ops.dev->ifindex != tuple->oifidx)
++		    hook->ops.dev->ifindex != rt->dst.dev->ifindex)
 +			continue;
 +
 +		hook->used = true;
@@ -483,7 +488,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +		kfree(hook);
 +	}
 +
-+	nf_flow_table_cleanup(dev_net(dev), dev);
++	nf_flow_table_cleanup(dev);
 +
 +	return NOTIFY_DONE;
 +}
@@ -523,7 +528,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +module_exit(xt_flowoffload_tg_exit);
 --- a/net/netfilter/nf_flow_table_core.c
 +++ b/net/netfilter/nf_flow_table_core.c
-@@ -6,7 +6,6 @@
+@@ -7,7 +7,6 @@
  #include <linux/netdevice.h>
  #include <net/ip.h>
  #include <net/ip6_route.h>
@@ -531,6 +536,24 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  #include <net/netfilter/nf_flow_table.h>
  #include <net/netfilter/nf_conntrack.h>
  #include <net/netfilter/nf_conntrack_core.h>
+@@ -338,8 +337,7 @@ flow_offload_lookup(struct nf_flowtable
+ }
+ EXPORT_SYMBOL_GPL(flow_offload_lookup);
+ 
+-static int
+-nf_flow_table_iterate(struct nf_flowtable *flow_table,
++int nf_flow_table_iterate(struct nf_flowtable *flow_table,
+ 		      void (*iter)(struct flow_offload *flow, void *data),
+ 		      void *data)
+ {
+@@ -372,6 +370,7 @@ nf_flow_table_iterate(struct nf_flowtabl
+ 
+ 	return err;
+ }
++EXPORT_SYMBOL_GPL(nf_flow_table_iterate);
+ 
+ static void nf_flow_offload_gc_step(struct flow_offload *flow, void *data)
+ {
 --- /dev/null
 +++ b/include/uapi/linux/netfilter/xt_FLOWOFFLOAD.h
 @@ -0,0 +1,17 @@
@@ -551,3 +574,16 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 +};
 +
 +#endif /* _XT_FLOWOFFLOAD_H */
+--- a/include/net/netfilter/nf_flow_table.h
++++ b/include/net/netfilter/nf_flow_table.h
+@@ -128,6 +128,10 @@ static inline void flow_offload_dead(str
+ 	flow->flags |= FLOW_OFFLOAD_DYING;
+ }
+ 
++int nf_flow_table_iterate(struct nf_flowtable *flow_table,
++                      void (*iter)(struct flow_offload *flow, void *data),
++                      void *data);
++
+ int nf_flow_snat_port(const struct flow_offload *flow,
+ 		      struct sk_buff *skb, unsigned int thoff,
+ 		      u8 protocol, enum flow_offload_tuple_dir dir);