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, 23 insertions, 21 deletions

diff --git a/target/linux/generic/backport-5.4/370-netfilter-nf_flow_table-fix-offloaded-connection-tim.patch b/target/linux/generic/backport-5.4/370-netfilter-nf_flow_table-fix-offloaded-connection-tim.patch
index 7c10f6f189..4edcbe1691 100644
--- a/target/linux/generic/backport-5.4/370-netfilter-nf_flow_table-fix-offloaded-connection-tim.patch
+++ b/target/linux/generic/backport-5.4/370-netfilter-nf_flow_table-fix-offloaded-connection-tim.patch
@@ -21,7 +21,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 
 --- a/net/netfilter/nf_conntrack_core.c
 +++ b/net/netfilter/nf_conntrack_core.c
-@@ -1178,18 +1178,6 @@ static bool gc_worker_can_early_drop(con
+@@ -1206,18 +1206,6 @@ static bool gc_worker_can_early_drop(con
  	return false;
  }
  
@@ -40,7 +40,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  static void gc_worker(struct work_struct *work)
  {
  	unsigned int min_interval = max(HZ / GC_MAX_BUCKETS_DIV, 1u);
-@@ -1226,10 +1214,8 @@ static void gc_worker(struct work_struct
+@@ -1254,10 +1242,8 @@ static void gc_worker(struct work_struct
  			tmp = nf_ct_tuplehash_to_ctrack(h);
  
  			scanned++;
@@ -54,7 +54,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  				nf_ct_gc_expired(tmp);
 --- a/net/netfilter/nf_flow_table_core.c
 +++ b/net/netfilter/nf_flow_table_core.c
-@@ -183,10 +183,29 @@ static const struct rhashtable_params nf
+@@ -198,10 +198,29 @@ static const struct rhashtable_params nf
  	.automatic_shrinking	= true,
  };
  
@@ -84,29 +84,31 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  	flow->timeout = (u32)jiffies + NF_FLOW_TIMEOUT;
  
  	err = rhashtable_insert_fast(&flow_table->rhashtable,
-@@ -317,6 +336,8 @@ static int nf_flow_offload_gc_step(struc
+@@ -304,6 +323,7 @@ nf_flow_table_iterate(struct nf_flowtabl
  	rhashtable_walk_start(&hti);
  
  	while ((tuplehash = rhashtable_walk_next(&hti))) {
-+		bool teardown;
 +
  		if (IS_ERR(tuplehash)) {
- 			err = PTR_ERR(tuplehash);
- 			if (err != -EAGAIN)
-@@ -329,9 +350,13 @@ static int nf_flow_offload_gc_step(struc
- 
- 		flow = container_of(tuplehash, struct flow_offload, tuplehash[0]);
+ 			if (PTR_ERR(tuplehash) != -EAGAIN) {
+ 				err = PTR_ERR(tuplehash);
+@@ -328,10 +348,17 @@ static void nf_flow_offload_gc_step(stru
+ {
+ 	struct nf_flowtable *flow_table = data;
+ 	struct flow_offload_entry *e;
++	bool teardown;
  
--		if (nf_flow_has_expired(flow) ||
--		    (flow->flags & (FLOW_OFFLOAD_DYING |
--				    FLOW_OFFLOAD_TEARDOWN)))
-+		teardown = flow->flags & (FLOW_OFFLOAD_DYING |
-+					  FLOW_OFFLOAD_TEARDOWN);
+ 	e = container_of(flow, struct flow_offload_entry, flow);
+-	if (nf_flow_has_expired(flow) || nf_ct_is_dying(e->ct) ||
+-	    (flow->flags & (FLOW_OFFLOAD_DYING | FLOW_OFFLOAD_TEARDOWN)))
++
++	teardown = flow->flags & (FLOW_OFFLOAD_DYING |
++				  FLOW_OFFLOAD_TEARDOWN);
 +
-+		if (!teardown)
-+			nf_ct_offload_timeout(flow);
++	if (!teardown)
++		nf_ct_offload_timeout(flow);
 +
-+		if (nf_flow_has_expired(flow) || teardown)
- 			flow_offload_del(flow_table, flow);
- 	}
- out:
++	if (nf_flow_has_expired(flow) || teardown)
+ 		flow_offload_del(flow_table, flow);
+ }
+