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, 3 insertions, 59 deletions

diff --git a/target/linux/generic/hack-5.4/220-gc_sections.patch b/target/linux/generic/hack-5.4/220-gc_sections.patch
index 77422e821b..fbac74c111 100644
--- a/target/linux/generic/hack-5.4/220-gc_sections.patch
+++ b/target/linux/generic/hack-5.4/220-gc_sections.patch
@@ -19,45 +19,19 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  include/asm-generic/vmlinux.lds.h | 63 ++++++++++++++++++++-------------------
  7 files changed, 55 insertions(+), 51 deletions(-)
 
---- a/Makefile
-+++ b/Makefile
-@@ -294,6 +294,11 @@ else
- scripts/Kbuild.include: ;
- include scripts/Kbuild.include
- 
-+ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
-+KBUILD_CFLAGS_KERNEL += -ffunction-sections -fdata-sections
-+LDFLAGS_vmlinux += --gc-sections
-+endif
-+
- # Read KERNELRELEASE from include/config/kernel.release (if it exists)
- KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
- KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
-@@ -782,11 +787,6 @@ ifdef CONFIG_DEBUG_SECTION_MISMATCH
- KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
- endif
- 
--ifdef CONFIG_LD_DEAD_CODE_DATA_ELIMINATION
--KBUILD_CFLAGS_KERNEL += -ffunction-sections -fdata-sections
--LDFLAGS_vmlinux += --gc-sections
--endif
--
- # arch Makefile may override CC so keep this after arch Makefile is included
- NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
- 
 --- a/arch/arm/Kconfig
 +++ b/arch/arm/Kconfig
-@@ -98,6 +98,7 @@ config ARM
+@@ -111,6 +111,7 @@ config ARM
  	select HAVE_UID16
  	select HAVE_VIRT_CPU_ACCOUNTING_GEN
  	select IRQ_FORCED_THREADING
 +	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
  	select MODULES_USE_ELF_REL
  	select NEED_DMA_MAP_STATE
- 	select NO_BOOTMEM
+ 	select OF_EARLY_FLATTREE if OF
 --- a/arch/arm/boot/compressed/Makefile
 +++ b/arch/arm/boot/compressed/Makefile
-@@ -106,6 +106,7 @@ ifeq ($(CONFIG_FUNCTION_TRACER),y)
+@@ -107,6 +107,7 @@ ifeq ($(CONFIG_FUNCTION_TRACER),y)
  ORIG_CFLAGS := $(KBUILD_CFLAGS)
  KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
  endif
@@ -160,33 +134,3 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  	}								\
  	. = __stubs_start + SIZEOF(.stubs);				\
  	__stubs_end = .;						\
---- a/arch/mips/Kconfig
-+++ b/arch/mips/Kconfig
-@@ -43,6 +43,7 @@ config MIPS
- 	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
- 	select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS)
- 	select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS)
-+	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
- 	select HAVE_CONTEXT_TRACKING
- 	select HAVE_COPY_THREAD_TLS
- 	select HAVE_C_RECORDMCOUNT
---- a/arch/mips/kernel/vmlinux.lds.S
-+++ b/arch/mips/kernel/vmlinux.lds.S
-@@ -72,7 +72,7 @@ SECTIONS
- 	/* Exception table for data bus errors */
- 	__dbe_table : {
- 		__start___dbe_table = .;
--		*(__dbe_table)
-+		KEEP(*(__dbe_table))
- 		__stop___dbe_table = .;
- 	}
- 
-@@ -123,7 +123,7 @@ SECTIONS
- 	. = ALIGN(4);
- 	.mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
- 		__mips_machines_start = .;
--		*(.mips.machines.init)
-+		KEEP(*(.mips.machines.init))
- 		__mips_machines_end = .;
- 	}
-