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, 338 deletions

diff --git a/target/linux/generic/hack-5.4/930-crashlog.patch b/target/linux/generic/hack-5.4/930-crashlog.patch
deleted file mode 100644
index bb16f22915..0000000000
--- a/target/linux/generic/hack-5.4/930-crashlog.patch
+++ /dev/null
@@ -1,338 +0,0 @@
-From 6b1ab74a9917012d0c559edc4ed299d9228ac89f Mon Sep 17 00:00:00 2001
-From: Felix Fietkau <nbd@nbd.name>
-Date: Sat, 8 Jul 2017 08:26:47 +0200
-Subject: kernel: add the new 'crashlog' feature
-
-this tries to store kernel oops/panic logs in a fixed location in RAM to
-recover them available to user space using debugfs
-
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
- include/linux/crashlog.h |  17 ++++
- init/Kconfig             |   4 +
- kernel/Makefile          |   1 +
- kernel/crashlog.c        | 213 +++++++++++++++++++++++++++++++++++++++++++++++
- kernel/module.c          |   3 +
- mm/bootmem.c             |   2 +
- mm/memblock.c            |   5 ++
- 7 files changed, 245 insertions(+)
- create mode 100644 include/linux/crashlog.h
- create mode 100644 kernel/crashlog.c
-
---- /dev/null
-+++ b/include/linux/crashlog.h
-@@ -0,0 +1,17 @@
-+#ifndef __CRASHLOG_H
-+#define __CRASHLOG_H
-+
-+#ifdef CONFIG_CRASHLOG
-+void crashlog_init_bootmem(struct bootmem_data *bdata);
-+void crashlog_init_memblock(phys_addr_t addr, phys_addr_t size);
-+#else
-+static inline void crashlog_init_bootmem(struct bootmem_data *bdata)
-+{
-+}
-+
-+static inline void crashlog_init_memblock(phys_addr_t addr, phys_addr_t size)
-+{
-+}
-+#endif
-+
-+#endif
---- a/init/Kconfig
-+++ b/init/Kconfig
-@@ -1049,6 +1049,10 @@ config RELAY
- 
- 	  If unsure, say N.
- 
-+config CRASHLOG
-+	bool "Crash logging"
-+	depends on (!NO_BOOTMEM || HAVE_MEMBLOCK)
-+
- config BLK_DEV_INITRD
- 	bool "Initial RAM filesystem and RAM disk (initramfs/initrd) support"
- 	help
---- a/kernel/Makefile
-+++ b/kernel/Makefile
-@@ -114,6 +114,7 @@ obj-$(CONFIG_TORTURE_TEST) += torture.o
- obj-$(CONFIG_HAS_IOMEM) += iomem.o
- obj-$(CONFIG_ZONE_DEVICE) += memremap.o
- obj-$(CONFIG_RSEQ) += rseq.o
-+obj-$(CONFIG_CRASHLOG) += crashlog.o
- 
- $(obj)/configs.o: $(obj)/config_data.h
- 
---- /dev/null
-+++ b/kernel/crashlog.c
-@@ -0,0 +1,213 @@
-+/*
-+ * Crash information logger
-+ * Copyright (C) 2010 Felix Fietkau <nbd@nbd.name>
-+ *
-+ * Based on ramoops.c
-+ *   Copyright (C) 2010 Marco Stornelli <marco.stornelli@gmail.com>
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * version 2 as published by the Free Software Foundation.
-+ *
-+ * This program is distributed in the hope that it will be useful, but
-+ * WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-+ * General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
-+ * 02110-1301 USA
-+ *
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/bootmem.h>
-+#include <linux/memblock.h>
-+#include <linux/debugfs.h>
-+#include <linux/crashlog.h>
-+#include <linux/kmsg_dump.h>
-+#include <linux/module.h>
-+#include <linux/pfn.h>
-+#include <linux/vmalloc.h>
-+#include <asm/io.h>
-+
-+#define CRASHLOG_PAGES	4
-+#define CRASHLOG_SIZE	(CRASHLOG_PAGES * PAGE_SIZE)
-+#define CRASHLOG_MAGIC	0xa1eedead
-+
-+/*
-+ * Start the log at 1M before the end of RAM, as some boot loaders like
-+ * to use the end of the RAM for stack usage and other things
-+ * If this fails, fall back to using the last part.
-+ */
-+#define CRASHLOG_OFFSET	(1024 * 1024)
-+
-+struct crashlog_data {
-+	u32 magic;
-+	u32 len;
-+	u8 data[];
-+};
-+
-+static struct debugfs_blob_wrapper crashlog_blob;
-+static unsigned long crashlog_addr = 0;
-+static struct crashlog_data *crashlog_buf;
-+static struct kmsg_dumper dump;
-+static bool first = true;
-+
-+extern struct list_head *crashlog_modules;
-+
-+static bool crashlog_set_addr(phys_addr_t addr, phys_addr_t size)
-+{
-+	/* Limit to lower 64 MB to avoid highmem */
-+	phys_addr_t limit = 64 * 1024 * 1024;
-+
-+	if (crashlog_addr)
-+		return false;
-+
-+	if (addr > limit)
-+		return false;
-+
-+	if (addr + size > limit)
-+		size = limit - addr;
-+
-+	crashlog_addr = addr;
-+
-+	if (addr + size > CRASHLOG_OFFSET)
-+		crashlog_addr += size - CRASHLOG_OFFSET;
-+
-+	return true;
-+}
-+
-+#ifndef CONFIG_NO_BOOTMEM
-+void __init crashlog_init_bootmem(bootmem_data_t *bdata)
-+{
-+	phys_addr_t start, end;
-+
-+	start = PFN_PHYS(bdata->node_low_pfn);
-+	end = PFN_PHYS(bdata->node_min_pfn);
-+	if (!crashlog_set_addr(start, end - start))
-+		return;
-+
-+	if (reserve_bootmem(crashlog_addr, CRASHLOG_SIZE, BOOTMEM_EXCLUSIVE) < 0) {
-+		printk("Crashlog failed to allocate RAM at address 0x%lx\n",
-+		       crashlog_addr);
-+		crashlog_addr = 0;
-+	}
-+}
-+#endif
-+
-+#ifdef CONFIG_HAVE_MEMBLOCK
-+void __init_memblock crashlog_init_memblock(phys_addr_t addr, phys_addr_t size)
-+{
-+	if (!crashlog_set_addr(addr, size))
-+		return;
-+
-+	if (memblock_reserve(crashlog_addr, CRASHLOG_SIZE)) {
-+		printk("Crashlog failed to allocate RAM at address 0x%lx\n",
-+		       crashlog_addr);
-+		crashlog_addr = 0;
-+	}
-+}
-+#endif
-+
-+static void __init crashlog_copy(void)
-+{
-+	if (crashlog_buf->magic != CRASHLOG_MAGIC)
-+		return;
-+
-+	if (!crashlog_buf->len || crashlog_buf->len >
-+	    CRASHLOG_SIZE - sizeof(*crashlog_buf))
-+		return;
-+
-+	crashlog_blob.size = crashlog_buf->len;
-+	crashlog_blob.data = kmemdup(crashlog_buf->data,
-+		crashlog_buf->len, GFP_KERNEL);
-+
-+	debugfs_create_blob("crashlog", 0700, NULL, &crashlog_blob);
-+}
-+
-+static int get_maxlen(void)
-+{
-+	return CRASHLOG_SIZE - sizeof(*crashlog_buf) - crashlog_buf->len;
-+}
-+
-+static void crashlog_printf(const char *fmt, ...)
-+{
-+	va_list args;
-+	int len = get_maxlen();
-+
-+	if (!len)
-+		return;
-+
-+	va_start(args, fmt);
-+	crashlog_buf->len += vscnprintf(
-+		&crashlog_buf->data[crashlog_buf->len],
-+		len, fmt, args);
-+	va_end(args);
-+}
-+
-+static void crashlog_do_dump(struct kmsg_dumper *dumper,
-+		enum kmsg_dump_reason reason)
-+{
-+	struct timeval tv;
-+	struct module *m;
-+	char *buf;
-+	size_t len;
-+
-+	if (!first)
-+		crashlog_printf("\n===================================\n");
-+
-+	do_gettimeofday(&tv);
-+	crashlog_printf("Time: %lu.%lu\n",
-+		(long)tv.tv_sec, (long)tv.tv_usec);
-+
-+	if (first) {
-+		crashlog_printf("Modules:");
-+		list_for_each_entry(m, crashlog_modules, list) {
-+			crashlog_printf("\t%s@%p+%x", m->name,
-+			m->core_layout.base, m->core_layout.size,
-+			m->init_layout.base, m->init_layout.size);
-+		}
-+		crashlog_printf("\n");
-+		first = false;
-+	}
-+
-+	buf = (char *)&crashlog_buf->data[crashlog_buf->len];
-+
-+	kmsg_dump_get_buffer(dumper, true, buf, get_maxlen(), &len);
-+
-+	crashlog_buf->len += len;
-+}
-+
-+
-+int __init crashlog_init_fs(void)
-+{
-+	struct page *pages[CRASHLOG_PAGES];
-+	pgprot_t prot;
-+	int i;
-+
-+	if (!crashlog_addr) {
-+		printk("No memory allocated for crashlog\n");
-+		return -ENOMEM;
-+	}
-+
-+	printk("Crashlog allocated RAM at address 0x%lx\n", (unsigned long) crashlog_addr);
-+	for (i = 0; i < CRASHLOG_PAGES; i++)
-+		pages[i] = pfn_to_page((crashlog_addr >> PAGE_SHIFT) + i);
-+
-+	prot = pgprot_writecombine(PAGE_KERNEL);
-+	crashlog_buf = vmap(pages, CRASHLOG_PAGES, VM_MAP, prot);
-+
-+	crashlog_copy();
-+
-+	crashlog_buf->magic = CRASHLOG_MAGIC;
-+	crashlog_buf->len = 0;
-+
-+	dump.max_reason = KMSG_DUMP_OOPS;
-+	dump.dump = crashlog_do_dump;
-+	kmsg_dump_register(&dump);
-+
-+	return 0;
-+}
-+module_init(crashlog_init_fs);
---- a/kernel/module.c
-+++ b/kernel/module.c
-@@ -251,6 +251,9 @@ static void mod_update_bounds(struct mod
- #ifdef CONFIG_KGDB_KDB
- struct list_head *kdb_modules = &modules; /* kdb needs the list of modules */
- #endif /* CONFIG_KGDB_KDB */
-+#ifdef CONFIG_CRASHLOG
-+struct list_head *crashlog_modules = &modules;
-+#endif
- 
- static void module_assert_mutex(void)
- {
---- a/mm/bootmem.c
-+++ b/mm/bootmem.c
-@@ -15,6 +15,7 @@
- #include <linux/export.h>
- #include <linux/kmemleak.h>
- #include <linux/range.h>
-+#include <linux/crashlog.h>
- #include <linux/bug.h>
- #include <linux/io.h>
- #include <linux/bootmem.h>
-@@ -215,6 +216,7 @@ static unsigned long __init free_all_boo
- 	if (!bdata->node_bootmem_map)
- 		return 0;
- 
-+	crashlog_init_bootmem(bdata);
- 	map = bdata->node_bootmem_map;
- 	start = bdata->node_min_pfn;
- 	end = bdata->node_low_pfn;
---- a/mm/memblock.c
-+++ b/mm/memblock.c
-@@ -21,6 +21,7 @@
- #include <linux/seq_file.h>
- #include <linux/memblock.h>
- #include <linux/bootmem.h>
-+#include <linux/crashlog.h>
- 
- #include <asm/sections.h>
- #include <linux/io.h>
-@@ -547,6 +548,8 @@ static void __init_memblock memblock_ins
- 	memblock_set_region_node(rgn, nid);
- 	type->cnt++;
- 	type->total_size += size;
-+	if (type == &memblock.memory)
-+		crashlog_init_memblock(base, size);
- }
- 
- /**
-@@ -586,6 +589,8 @@ int __init_memblock memblock_add_range(s
- 		type->regions[0].flags = flags;
- 		memblock_set_region_node(&type->regions[0], nid);
- 		type->total_size = size;
-+		if (type == &memblock.memory)
-+			crashlog_init_memblock(base, size);
- 		return 0;
- 	}
- repeat: