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, 0 insertions, 137 deletions

diff --git a/target/linux/generic/pending-5.4/304-mips_disable_fpu.patch b/target/linux/generic/pending-5.4/304-mips_disable_fpu.patch
deleted file mode 100644
index 332bb71e22..0000000000
--- a/target/linux/generic/pending-5.4/304-mips_disable_fpu.patch
+++ /dev/null
@@ -1,137 +0,0 @@
-From:   Manuel Lauss <manuel.lauss@gmail.com>
-Subject: [RFC PATCH v4 2/2] MIPS: make FPU emulator optional
-
-This small patch makes the MIPS FPU emulator optional. The kernel
-kills float-users on systems without a hardware FPU by sending a SIGILL.
-
-Disabling the emulator shrinks vmlinux by about 54kBytes (32bit,
-optimizing for size).
-
-Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
----
-v4: rediffed because of patch 1/2, should now work with micromips as well
-v3: updated patch description with size savings.
-v2: incorporated changes suggested by Jonas Gorski
-    force the fpu emulator on for micromips: relocating the parts
-    of the mmips code in the emulator to other areas would be a
-    much larger change; I went the cheap route instead with this.
-
- arch/mips/Kbuild                     |  2 +-
- arch/mips/Kconfig                    | 14 ++++++++++++++
- arch/mips/include/asm/fpu.h          |  5 +++--
- arch/mips/include/asm/fpu_emulator.h | 15 +++++++++++++++
- 4 files changed, 33 insertions(+), 3 deletions(-)
-
---- a/arch/mips/Kconfig
-+++ b/arch/mips/Kconfig
-@@ -2893,6 +2893,20 @@ config MIPS_O32_FP64_SUPPORT
- 
- 	  If unsure, say N.
- 
-+config MIPS_FPU_EMULATOR
-+	bool "MIPS FPU Emulator"
-+	default y
-+	help
-+	  This option lets you disable the built-in MIPS FPU (Coprocessor 1)
-+	  emulator, which handles floating-point instructions on processors
-+	  without a hardware FPU.  It is generally a good idea to keep the
-+	  emulator built-in, unless you are perfectly sure you have a
-+	  complete soft-float environment.  With the emulator disabled, all
-+	  users of float operations will be killed with an illegal instr-
-+	  uction exception.
-+
-+	  Say Y, please.
-+
- config USE_OF
- 	bool
- 	select OF
---- a/arch/mips/Makefile
-+++ b/arch/mips/Makefile
-@@ -323,7 +323,7 @@ OBJCOPYFLAGS		+= --remove-section=.regin
- head-y := arch/mips/kernel/head.o
- 
- libs-y			+= arch/mips/lib/
--libs-y			+= arch/mips/math-emu/
-+libs-$(CONFIG_MIPS_FPU_EMULATOR)	+= arch/mips/math-emu/
- 
- # See arch/mips/Kbuild for content of core part of the kernel
- core-y += arch/mips/
---- a/arch/mips/include/asm/fpu.h
-+++ b/arch/mips/include/asm/fpu.h
-@@ -230,8 +230,10 @@ static inline int init_fpu(void)
- 		/* Restore FRE */
- 		write_c0_config5(config5);
- 		enable_fpu_hazard();
--	} else
-+	} else if (IS_ENABLED(CONFIG_MIPS_FPU_EMULATOR))
- 		fpu_emulator_init_fpu();
-+	else
-+		ret = SIGILL;
- 
- 	return ret;
- }
---- a/arch/mips/include/asm/fpu_emulator.h
-+++ b/arch/mips/include/asm/fpu_emulator.h
-@@ -30,6 +30,7 @@
- #include <asm/local.h>
- #include <asm/processor.h>
- 
-+#ifdef CONFIG_MIPS_FPU_EMULATOR
- #ifdef CONFIG_DEBUG_FS
- 
- struct mips_fpu_emulator_stats {
-@@ -179,6 +180,16 @@ do {									\
- extern int fpu_emulator_cop1Handler(struct pt_regs *xcp,
- 				    struct mips_fpu_struct *ctx, int has_fpu,
- 				    void __user **fault_addr);
-+#else	/* no CONFIG_MIPS_FPU_EMULATOR */
-+static inline int fpu_emulator_cop1Handler(struct pt_regs *xcp,
-+				struct mips_fpu_struct *ctx, int has_fpu,
-+				void __user **fault_addr)
-+{
-+	*fault_addr = NULL;
-+	return SIGILL;	/* we don't speak MIPS FPU */
-+}
-+#endif	/* CONFIG_MIPS_FPU_EMULATOR */
-+
- void force_fcr31_sig(unsigned long fcr31, void __user *fault_addr,
- 		     struct task_struct *tsk);
- int process_fpemu_return(int sig, void __user *fault_addr,
---- a/arch/mips/include/asm/dsemul.h
-+++ b/arch/mips/include/asm/dsemul.h
-@@ -41,6 +41,7 @@ struct task_struct;
- extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir,
- 		       unsigned long branch_pc, unsigned long cont_pc);
- 
-+#ifdef CONFIG_MIPS_FPU_EMULATOR
- /**
-  * do_dsemulret() - Return from a delay slot 'emulation' frame
-  * @xcp:	User thread register context.
-@@ -88,5 +89,27 @@ extern bool dsemul_thread_rollback(struc
-  * before @mm is freed in order to avoid memory leaks.
-  */
- extern void dsemul_mm_cleanup(struct mm_struct *mm);
-+#else
-+static inline bool do_dsemulret(struct pt_regs *xcp)
-+{
-+	return false;
-+}
-+
-+static inline bool dsemul_thread_cleanup(struct task_struct *tsk)
-+{
-+	return false;
-+}
-+
-+static inline bool dsemul_thread_rollback(struct pt_regs *regs)
-+{
-+	return false;
-+}
-+
-+static inline void dsemul_mm_cleanup(struct mm_struct *mm)
-+{
-+
-+}
-+
-+#endif
- 
- #endif /* __MIPS_ASM_DSEMUL_H__ */