kernel 5.14.7

1 files changed, 3142 insertions, 0 deletions

diff --git a/SOURCES/patch-5.14-redhat.patch b/SOURCES/patch-5.14-redhat.patch
new file mode 100644
index 0000000..07e15e0
--- /dev/null
+++ b/SOURCES/patch-5.14-redhat.patch
@@ -0,0 +1,3142 @@
+ arch/arm/Kconfig                                   |   4 +-
+ arch/arm64/Kconfig                                 |   3 +-
+ .../boot/dts/rockchip/rk3399-pinebook-pro.dts      |   6 +-
+ arch/arm64/kernel/acpi.c                           |   2 +-
+ arch/s390/include/asm/ipl.h                        |   1 +
+ arch/s390/kernel/ipl.c                             |   5 +
+ arch/s390/kernel/setup.c                           |   4 +
+ arch/x86/kernel/setup.c                            |  22 +-
+ crypto/rng.c                                       |  73 ++-
+ drivers/acpi/apei/hest.c                           |   8 +
+ drivers/acpi/irq.c                                 |  17 +-
+ drivers/acpi/scan.c                                |   9 +
+ drivers/acpi/x86/s2idle.c                          |  67 +--
+ drivers/ata/libahci.c                              |  18 +
+ drivers/char/ipmi/ipmi_dmi.c                       |  15 +
+ drivers/char/ipmi/ipmi_msghandler.c                |  16 +-
+ drivers/char/random.c                              | 115 +++++
+ drivers/firmware/efi/Makefile                      |   1 +
+ drivers/firmware/efi/efi.c                         | 124 +++--
+ drivers/firmware/efi/secureboot.c                  |  38 ++
+ drivers/hid/hid-rmi.c                              |  64 ---
+ drivers/hwtracing/coresight/coresight-etm4x-core.c |  19 +
+ drivers/input/rmi4/rmi_driver.c                    | 124 +++--
+ drivers/iommu/iommu.c                              |  22 +
+ drivers/net/wireguard/main.c                       |   6 +
+ drivers/pci/quirks.c                               |  24 +
+ drivers/usb/core/hub.c                             |   7 +
+ fs/xfs/xfs_super.c                                 |   8 -
+ include/linux/efi.h                                |  22 +-
+ include/linux/lsm_hook_defs.h                      |   2 +
+ include/linux/lsm_hooks.h                          |   6 +
+ include/linux/random.h                             |   7 +
+ include/linux/rmi.h                                |   1 +
+ include/linux/security.h                           |   5 +
+ init/Kconfig                                       |   2 +-
+ kernel/module_signing.c                            |   9 +-
+ mm/cma.c                                           |  10 +
+ security/integrity/platform_certs/load_uefi.c      |   6 +-
+ security/lockdown/Kconfig                          |  13 +
+ security/lockdown/lockdown.c                       |   1 +
+ security/security.c                                |   6 +
+ tools/testing/selftests/bpf/Makefile               |   1 -
+ .../selftests/bpf/prog_tests/linked_funcs.c        |  42 --
+ .../testing/selftests/bpf/prog_tests/linked_maps.c |  30 --
+ .../testing/selftests/bpf/prog_tests/linked_vars.c |  43 --
+ tools/testing/selftests/bpf/progs/bpf_cubic.c      | 545 ---------------------
+ tools/testing/selftests/bpf/progs/bpf_dctcp.c      | 224 ---------
+ .../testing/selftests/bpf/progs/kfunc_call_test.c  |  47 --
+ .../selftests/bpf/progs/kfunc_call_test_subprog.c  |  42 --
+ tools/testing/selftests/bpf/progs/linked_funcs1.c  |  73 ---
+ tools/testing/selftests/bpf/progs/linked_funcs2.c  |  73 ---
+ tools/testing/selftests/bpf/progs/linked_maps2.c   |  76 ---
+ tools/testing/selftests/bpf/progs/linked_vars1.c   |  54 --
+ tools/testing/selftests/bpf/progs/linked_vars2.c   |  55 ---
+ 54 files changed, 694 insertions(+), 1523 deletions(-)
+
+diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
+index 2fb7012c3246..47718b4f2f75 100644
+--- a/arch/arm/Kconfig
++++ b/arch/arm/Kconfig
+@@ -1474,9 +1474,9 @@ config HIGHMEM
+ 	  If unsure, say n.
+
+ config HIGHPTE
+-	bool "Allocate 2nd-level pagetables from highmem" if EXPERT
++	bool "Allocate 2nd-level pagetables from highmem"
+ 	depends on HIGHMEM
+-	default y
++	default n
+ 	help
+ 	  The VM uses one page of physical memory for each page table.
+ 	  For systems with a lot of processes, this can use a lot of
+diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
+index 62c3c1d2190f..9ef6bb1d5b0c 100644
+--- a/arch/arm64/Kconfig
++++ b/arch/arm64/Kconfig
+@@ -915,7 +915,7 @@ endchoice
+
+ config ARM64_FORCE_52BIT
+ 	bool "Force 52-bit virtual addresses for userspace"
+-	depends on ARM64_VA_BITS_52 && EXPERT
++	depends on ARM64_VA_BITS_52
+ 	help
+ 	  For systems with 52-bit userspace VAs enabled, the kernel will attempt
+ 	  to maintain compatibility with older software by providing 48-bit VAs
+@@ -1156,6 +1156,7 @@ config XEN
+ config FORCE_MAX_ZONEORDER
+ 	int
+ 	default "14" if ARM64_64K_PAGES
++	default "13" if (ARCH_THUNDER && !ARM64_64K_PAGES)
+ 	default "12" if ARM64_16K_PAGES
+ 	default "11"
+ 	help
+diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
+index 2b5f001ff4a6..dae8c252bc2b 100644
+--- a/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
++++ b/arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts
+@@ -385,10 +385,6 @@ mains_charger: dc-charger {
+ 	};
+ };
+
+-&cdn_dp {
+-	status = "okay";
+-};
+-
+ &cpu_b0 {
+ 	cpu-supply = <&vdd_cpu_b>;
+ };
+@@ -711,7 +707,7 @@ fusb0: fusb30x@22 {
+
+ 		connector {
+ 			compatible = "usb-c-connector";
+-			data-role = "host";
++			data-role = "dual";
+ 			label = "USB-C";
+ 			op-sink-microwatt = <1000000>;
+ 			power-role = "dual";
+diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c
+index f3851724fe35..cac21da49455 100644
+--- a/arch/arm64/kernel/acpi.c
++++ b/arch/arm64/kernel/acpi.c
+@@ -40,7 +40,7 @@ int acpi_pci_disabled = 1;	/* skip ACPI PCI scan and IRQ initialization */
+ EXPORT_SYMBOL(acpi_pci_disabled);
+
+ static bool param_acpi_off __initdata;
+-static bool param_acpi_on __initdata;
++static bool param_acpi_on __initdata = true;
+ static bool param_acpi_force __initdata;
+
+ static int __init parse_acpi(char *arg)
+diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h
+index a9e2c7295b35..6ff11f3a2d47 100644
+--- a/arch/s390/include/asm/ipl.h
++++ b/arch/s390/include/asm/ipl.h
+@@ -127,6 +127,7 @@ int ipl_report_add_component(struct ipl_report *report, struct kexec_buf *kbuf,
+ 			     unsigned char flags, unsigned short cert);
+ int ipl_report_add_certificate(struct ipl_report *report, void *key,
+ 			       unsigned long addr, unsigned long len);
++bool ipl_get_secureboot(void);
+
+ /*
+  * DIAG 308 support
+diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
+index 911cd3912351..caae31c04561 100644
+--- a/arch/s390/kernel/ipl.c
++++ b/arch/s390/kernel/ipl.c
+@@ -2215,3 +2215,8 @@ int ipl_report_free(struct ipl_report *report)
+ }
+
+ #endif
++
++bool ipl_get_secureboot(void)
++{
++	return !!ipl_secure_flag;
++}
+diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
+index ee23908f1b96..0273125cdfba 100644
+--- a/arch/s390/kernel/setup.c
++++ b/arch/s390/kernel/setup.c
+@@ -49,6 +49,7 @@
+ #include <linux/memory.h>
+ #include <linux/compat.h>
+ #include <linux/start_kernel.h>
++#include <linux/security.h>
+ #include <linux/hugetlb.h>
+
+ #include <asm/boot_data.h>
+@@ -1030,6 +1031,9 @@ void __init setup_arch(char **cmdline_p)
+
+ 	log_component_list();
+
++	if (ipl_get_secureboot())
++		security_lock_kernel_down("Secure IPL mode", LOCKDOWN_INTEGRITY_MAX);
++
+ 	/* Have one command line that is parsed and saved in /proc/cmdline */
+ 	/* boot_command_line has been already set up in early.c */
+ 	*cmdline_p = boot_command_line;
+diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
+index bff3a784aec5..4e13c3ee5723 100644
+--- a/arch/x86/kernel/setup.c
++++ b/arch/x86/kernel/setup.c
+@@ -19,6 +19,7 @@
+ #include <linux/root_dev.h>
+ #include <linux/hugetlb.h>
+ #include <linux/tboot.h>
++#include <linux/security.h>
+ #include <linux/usb/xhci-dbgp.h>
+ #include <linux/static_call.h>
+ #include <linux/swiotlb.h>
+@@ -936,6 +937,13 @@ void __init setup_arch(char **cmdline_p)
+ 	if (efi_enabled(EFI_BOOT))
+ 		efi_init();
+
++	efi_set_secure_boot(boot_params.secure_boot);
++
++#ifdef CONFIG_LOCK_DOWN_IN_EFI_SECURE_BOOT
++	if (efi_enabled(EFI_SECURE_BOOT))
++		security_lock_kernel_down("EFI Secure Boot mode", LOCKDOWN_INTEGRITY_MAX);
++#endif
++
+ 	dmi_setup();
+
+ 	/*
+@@ -1101,19 +1109,7 @@ void __init setup_arch(char **cmdline_p)
+ 	/* Allocate bigger log buffer */
+ 	setup_log_buf(1);
+
+-	if (efi_enabled(EFI_BOOT)) {
+-		switch (boot_params.secure_boot) {
+-		case efi_secureboot_mode_disabled:
+-			pr_info("Secure boot disabled\n");
+-			break;
+-		case efi_secureboot_mode_enabled:
+-			pr_info("Secure boot enabled\n");
+-			break;
+-		default:
+-			pr_info("Secure boot could not be determined\n");
+-			break;
+-		}
+-	}
++	efi_set_secure_boot(boot_params.secure_boot);
+
+ 	reserve_initrd();
+
+diff --git a/crypto/rng.c b/crypto/rng.c
+index fea082b25fe4..50a9d040bed1 100644
+--- a/crypto/rng.c
++++ b/crypto/rng.c
+@@ -11,14 +11,17 @@
+ #include <linux/atomic.h>
+ #include <crypto/internal/rng.h>
+ #include <linux/err.h>
++#include <linux/fips.h>
++#include <linux/kernel.h>
+ #include <linux/module.h>
+ #include <linux/mutex.h>
+ #include <linux/random.h>
+ #include <linux/seq_file.h>
++#include <linux/sched.h>
++#include <linux/sched/signal.h>
+ #include <linux/slab.h>
+ #include <linux/string.h>
+ #include <linux/cryptouser.h>
+-#include <linux/compiler.h>
+ #include <net/netlink.h>
+
+ #include "internal.h"
+@@ -224,5 +227,73 @@ void crypto_unregister_rngs(struct rng_alg *algs, int count)
+ }
+ EXPORT_SYMBOL_GPL(crypto_unregister_rngs);
+
++static ssize_t crypto_devrandom_read(void __user *buf, size_t buflen)
++{
++	u8 tmp[256];
++	ssize_t ret;
++
++	if (!buflen)
++		return 0;
++
++	ret = crypto_get_default_rng();
++	if (ret)
++		return ret;
++
++	for (;;) {
++		int err;
++		int i;
++
++		i = min_t(int, buflen, sizeof(tmp));
++		err = crypto_rng_get_bytes(crypto_default_rng, tmp, i);
++		if (err) {
++			ret = err;
++			break;
++		}
++
++		if (copy_to_user(buf, tmp, i)) {
++			ret = -EFAULT;
++			break;
++		}
++
++		buflen -= i;
++		buf += i;
++		ret += i;
++
++		if (!buflen)
++			break;
++
++		if (need_resched()) {
++			if (signal_pending(current))
++				break;
++			schedule();
++		}
++	}
++
++	crypto_put_default_rng();
++	memzero_explicit(tmp, sizeof(tmp));
++
++	return ret;
++}
++
++static const struct random_extrng crypto_devrandom_rng = {
++	.extrng_read = crypto_devrandom_read,
++	.owner = THIS_MODULE,
++};
++
++static int __init crypto_rng_init(void)
++{
++	if (fips_enabled)
++		random_register_extrng(&crypto_devrandom_rng);
++	return 0;
++}
++
++static void __exit crypto_rng_exit(void)
++{
++	random_unregister_extrng();
++}
++
++late_initcall(crypto_rng_init);
++module_exit(crypto_rng_exit);
++
+ MODULE_LICENSE("GPL");
+ MODULE_DESCRIPTION("Random Number Generator");
+diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c
+index 277f00b288d1..adbce15c273d 100644
+--- a/drivers/acpi/apei/hest.c
++++ b/drivers/acpi/apei/hest.c
+@@ -94,6 +94,14 @@ int apei_hest_parse(apei_hest_func_t func, void *data)
+ 	if (hest_disable || !hest_tab)
+ 		return -EINVAL;
+
++#ifdef CONFIG_ARM64
++	/* Ignore broken firmware */
++	if (!strncmp(hest_tab->header.oem_id, "HPE   ", 6) &&
++	    !strncmp(hest_tab->header.oem_table_id, "ProLiant", 8) &&
++	    MIDR_IMPLEMENTOR(read_cpuid_id()) == ARM_CPU_IMP_APM)
++		return -EINVAL;
++#endif
++
+ 	hest_hdr = (struct acpi_hest_header *)(hest_tab + 1);
+ 	for (i = 0; i < hest_tab->error_source_count; i++) {
+ 		len = hest_esrc_len(hest_hdr);
+diff --git a/drivers/acpi/irq.c b/drivers/acpi/irq.c
+index c68e694fca26..146cba5ae5bc 100644
+--- a/drivers/acpi/irq.c
++++ b/drivers/acpi/irq.c
+@@ -130,6 +130,7 @@ struct acpi_irq_parse_one_ctx {
+ 	unsigned int index;
+ 	unsigned long *res_flags;
+ 	struct irq_fwspec *fwspec;
++	bool skip_producer_check;
+ };
+
+ /**
+@@ -201,7 +202,8 @@ static acpi_status acpi_irq_parse_one_cb(struct acpi_resource *ares,
+ 		return AE_CTRL_TERMINATE;
+ 	case ACPI_RESOURCE_TYPE_EXTENDED_IRQ:
+ 		eirq = &ares->data.extended_irq;
+-		if (eirq->producer_consumer == ACPI_PRODUCER)
++		if (!ctx->skip_producer_check &&
++		    eirq->producer_consumer == ACPI_PRODUCER)
+ 			return AE_OK;
+ 		if (ctx->index >= eirq->interrupt_count) {
+ 			ctx->index -= eirq->interrupt_count;
+@@ -236,8 +238,19 @@ static acpi_status acpi_irq_parse_one_cb(struct acpi_resource *ares,
+ static int acpi_irq_parse_one(acpi_handle handle, unsigned int index,
+ 			      struct irq_fwspec *fwspec, unsigned long *flags)
+ {
+-	struct acpi_irq_parse_one_ctx ctx = { -EINVAL, index, flags, fwspec };
++	struct acpi_irq_parse_one_ctx ctx = { -EINVAL, index, flags, fwspec, false };
+
++	/*
++	 * Firmware on arm64-based HPE m400 platform incorrectly marks
++	 * its UART interrupt as ACPI_PRODUCER rather than ACPI_CONSUMER.
++	 * Don't do the producer/consumer check for that device.
++	 */
++	if (IS_ENABLED(CONFIG_ARM64)) {
++		struct acpi_device *adev = acpi_bus_get_acpi_device(handle);
++
++		if (adev && !strcmp(acpi_device_hid(adev), "APMC0D08"))
++			ctx.skip_producer_check = true;
++	}
+ 	acpi_walk_resources(handle, METHOD_NAME__CRS, acpi_irq_parse_one_cb, &ctx);
+ 	return ctx.rc;
+ }
+diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
+index b24513ec3fae..8308569f66e0 100644
+--- a/drivers/acpi/scan.c
++++ b/drivers/acpi/scan.c
+@@ -1721,6 +1721,15 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
+ 	if (!acpi_match_device_ids(device, i2c_multi_instantiate_ids))
+ 		return false;
+
++	/*
++	 * Firmware on some arm64 X-Gene platforms will make the UART
++	 * device appear as both a UART and a slave of that UART. Just
++	 * bail out here for X-Gene UARTs.
++	 */
++	if (IS_ENABLED(CONFIG_ARM64) &&
++	    !strcmp(acpi_device_hid(device), "APMC0D08"))
++		return false;
++
+ 	INIT_LIST_HEAD(&resource_list);
+ 	acpi_dev_get_resources(device, &resource_list,
+ 			       acpi_check_serial_bus_slave,
+diff --git a/drivers/acpi/x86/s2idle.c b/drivers/acpi/x86/s2idle.c
+index 3a308461246a..bd92b549fd5a 100644
+--- a/drivers/acpi/x86/s2idle.c
++++ b/drivers/acpi/x86/s2idle.c
+@@ -449,25 +449,30 @@ int acpi_s2idle_prepare_late(void)
+ 	if (pm_debug_messages_on)
+ 		lpi_check_constraints();
+
+-	if (lps0_dsm_func_mask_microsoft > 0) {
++	/* Screen off */
++	if (lps0_dsm_func_mask > 0)
++		acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ?
++					ACPI_LPS0_SCREEN_OFF_AMD :
++					ACPI_LPS0_SCREEN_OFF,
++					lps0_dsm_func_mask, lps0_dsm_guid);
++
++	if (lps0_dsm_func_mask_microsoft > 0)
+ 		acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF,
+ 				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_ENTRY,
+-				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
++
++	/* LPS0 entry */
++	if (lps0_dsm_func_mask > 0)
++		acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ?
++					ACPI_LPS0_ENTRY_AMD :
++					ACPI_LPS0_ENTRY,
++					lps0_dsm_func_mask, lps0_dsm_guid);
++	if (lps0_dsm_func_mask_microsoft > 0) {
+ 		acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY,
+ 				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+-	} else if (acpi_s2idle_vendor_amd()) {
+-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF_AMD,
+-				lps0_dsm_func_mask, lps0_dsm_guid);
+-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY_AMD,
+-				lps0_dsm_func_mask, lps0_dsm_guid);
+-	} else {
+-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_OFF,
+-				lps0_dsm_func_mask, lps0_dsm_guid);
+-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_ENTRY,
+-				lps0_dsm_func_mask, lps0_dsm_guid);
++		/* modern standby entry */
++		acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_ENTRY,
++				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+ 	}
+-
+ 	return 0;
+ }
+
+@@ -476,24 +481,30 @@ void acpi_s2idle_restore_early(void)
+ 	if (!lps0_device_handle || sleep_no_lps0)
+ 		return;
+
+-	if (lps0_dsm_func_mask_microsoft > 0) {
+-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT,
+-				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
++	/* Modern standby exit */
++	if (lps0_dsm_func_mask_microsoft > 0)
+ 		acpi_sleep_run_lps0_dsm(ACPI_LPS0_MS_EXIT,
+ 				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON,
+-				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
+-	} else if (acpi_s2idle_vendor_amd()) {
+-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT_AMD,
+-				lps0_dsm_func_mask, lps0_dsm_guid);
+-		acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON_AMD,
+-				lps0_dsm_func_mask, lps0_dsm_guid);
+-	} else {
++
++	/* LPS0 exit */
++	if (lps0_dsm_func_mask > 0)
++		acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ?
++					ACPI_LPS0_EXIT_AMD :
++					ACPI_LPS0_EXIT,
++					lps0_dsm_func_mask, lps0_dsm_guid);
++	if (lps0_dsm_func_mask_microsoft > 0)
+ 		acpi_sleep_run_lps0_dsm(ACPI_LPS0_EXIT,
+-				lps0_dsm_func_mask, lps0_dsm_guid);
++				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
++
++	/* Screen on */
++	if (lps0_dsm_func_mask_microsoft > 0)
+ 		acpi_sleep_run_lps0_dsm(ACPI_LPS0_SCREEN_ON,
+-				lps0_dsm_func_mask, lps0_dsm_guid);
+-	}
++				lps0_dsm_func_mask_microsoft, lps0_dsm_guid_microsoft);
++	if (lps0_dsm_func_mask > 0)
++		acpi_sleep_run_lps0_dsm(acpi_s2idle_vendor_amd() ?
++					ACPI_LPS0_SCREEN_ON_AMD :
++					ACPI_LPS0_SCREEN_ON,
++					lps0_dsm_func_mask, lps0_dsm_guid);
+ }
+
+ static const struct platform_s2idle_ops acpi_s2idle_ops_lps0 = {
+diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
+index fec2e9754aed..bea4e2973259 100644
+--- a/drivers/ata/libahci.c
++++ b/drivers/ata/libahci.c
+@@ -671,6 +671,24 @@ int ahci_stop_engine(struct ata_port *ap)
+ 	tmp &= ~PORT_CMD_START;
+ 	writel(tmp, port_mmio + PORT_CMD);
+
++#ifdef CONFIG_ARM64
++	/* Rev Ax of Cavium CN99XX needs a hack for port stop */
++	if (dev_is_pci(ap->host->dev) &&
++	    to_pci_dev(ap->host->dev)->vendor == 0x14e4 &&
++	    to_pci_dev(ap->host->dev)->device == 0x9027 &&
++	    midr_is_cpu_model_range(read_cpuid_id(),
++			MIDR_CPU_MODEL(ARM_CPU_IMP_BRCM, BRCM_CPU_PART_VULCAN),
++			MIDR_CPU_VAR_REV(0, 0),
++			MIDR_CPU_VAR_REV(0, MIDR_REVISION_MASK))) {
++		tmp = readl(hpriv->mmio + 0x8000);
++		udelay(100);
++		writel(tmp | (1 << 26), hpriv->mmio + 0x8000);
++		udelay(100);
++		writel(tmp & ~(1 << 26), hpriv->mmio + 0x8000);
++		dev_warn(ap->host->dev, "CN99XX SATA reset workaround applied\n");
++	}
++#endif
++
+ 	/* wait for engine to stop. This could be as long as 500 msec */
+ 	tmp = ata_wait_register(ap, port_mmio + PORT_CMD,
+ 				PORT_CMD_LIST_ON, PORT_CMD_LIST_ON, 1, 500);
+diff --git a/drivers/char/ipmi/ipmi_dmi.c b/drivers/char/ipmi/ipmi_dmi.c
+index bbf7029e224b..cf7faa970dd6 100644
+--- a/drivers/char/ipmi/ipmi_dmi.c
++++ b/drivers/char/ipmi/ipmi_dmi.c
+@@ -215,6 +215,21 @@ static int __init scan_for_dmi_ipmi(void)
+ {
+ 	const struct dmi_device *dev = NULL;
+
++#ifdef CONFIG_ARM64
++	/* RHEL-only
++	 * If this is ARM-based HPE m400, return now, because that platform
++	 * reports the host-side ipmi address as intel port-io space, which
++	 * does not exist in the ARM architecture.
++	 */
++	const char *dmistr = dmi_get_system_info(DMI_PRODUCT_NAME);
++
++	if (dmistr && (strcmp("ProLiant m400 Server", dmistr) == 0)) {
++		pr_debug("%s does not support host ipmi\n", dmistr);
++		return 0;
++	}
++	/* END RHEL-only */
++#endif
++
+ 	while ((dev = dmi_find_device(DMI_DEV_TYPE_IPMI, NULL, dev)))
+ 		dmi_decode_ipmi((const struct dmi_header *) dev->device_data);
+
+diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
+index e96cb5c4f97a..d645460fe8a9 100644
+--- a/drivers/char/ipmi/ipmi_msghandler.c
++++ b/drivers/char/ipmi/ipmi_msghandler.c
+@@ -35,6 +35,7 @@
+ #include <linux/uuid.h>
+ #include <linux/nospec.h>
+ #include <linux/vmalloc.h>
++#include <linux/dmi.h>
+ #include <linux/delay.h>
+
+ #define IPMI_DRIVER_VERSION "39.2"
+@@ -5160,8 +5161,21 @@ static int __init ipmi_init_msghandler_mod(void)
+ {
+ 	int rv;
+
+-	pr_info("version " IPMI_DRIVER_VERSION "\n");
++#ifdef CONFIG_ARM64
++	/* RHEL-only
++	 * If this is ARM-based HPE m400, return now, because that platform
++	 * reports the host-side ipmi address as intel port-io space, which
++	 * does not exist in the ARM architecture.
++	 */
++	const char *dmistr = dmi_get_system_info(DMI_PRODUCT_NAME);
+
++	if (dmistr && (strcmp("ProLiant m400 Server", dmistr) == 0)) {
++		pr_debug("%s does not support host ipmi\n", dmistr);
++		return -ENOSYS;
++	}
++	/* END RHEL-only */
++#endif
++	pr_info("version " IPMI_DRIVER_VERSION "\n");
+ 	mutex_lock(&ipmi_interfaces_mutex);
+ 	rv = ipmi_register_driver();
+ 	mutex_unlock(&ipmi_interfaces_mutex);
+diff --git a/drivers/char/random.c b/drivers/char/random.c
+index 605969ed0f96..4d51f1c67675 100644
+--- a/drivers/char/random.c
++++ b/drivers/char/random.c
+@@ -335,6 +335,7 @@
+ #include <linux/syscalls.h>
+ #include <linux/completion.h>
+ #include <linux/uuid.h>
++#include <linux/rcupdate.h>
+ #include <crypto/chacha.h>
+ #include <crypto/sha1.h>
+
+@@ -349,6 +350,11 @@
+
+ /* #define ADD_INTERRUPT_BENCH */
+
++/*
++ * Hook for external RNG.
++ */
++static const struct random_extrng __rcu *extrng;
++
+ /*
+  * Configuration information
+  */
+@@ -481,6 +487,9 @@ static int ratelimit_disable __read_mostly;
+ module_param_named(ratelimit_disable, ratelimit_disable, int, 0644);
+ MODULE_PARM_DESC(ratelimit_disable, "Disable random ratelimit suppression");
+
++static const struct file_operations extrng_random_fops;
++static const struct file_operations extrng_urandom_fops;
++
+ /**********************************************************************
+  *
+  * OS independent entropy store.   Here are the functions which handle
+@@ -1858,6 +1867,13 @@ random_poll(struct file *file, poll_table * wait)
+ 	return mask;
+ }
+
++static __poll_t
++extrng_poll(struct file *file, poll_table * wait)
++{
++	/* extrng pool is always full, always read, no writes */
++	return EPOLLIN | EPOLLRDNORM;
++}
++
+ static int
+ write_pool(struct entropy_store *r, const char __user *buffer, size_t count)
+ {
+@@ -1961,7 +1977,58 @@ static int random_fasync(int fd, struct file *filp, int on)
+ 	return fasync_helper(fd, filp, on, &fasync);
+ }
+
++static int random_open(struct inode *inode, struct file *filp)
++{
++	const struct random_extrng *rng;
++
++	rcu_read_lock();
++	rng = rcu_dereference(extrng);
++	if (rng && !try_module_get(rng->owner))
++		rng = NULL;
++	rcu_read_unlock();
++
++	if (!rng)
++		return 0;
++
++	filp->f_op = &extrng_random_fops;
++	filp->private_data = rng->owner;
++
++	return 0;
++}
++
++static int urandom_open(struct inode *inode, struct file *filp)
++{
++	const struct random_extrng *rng;
++
++	rcu_read_lock();
++	rng = rcu_dereference(extrng);
++	if (rng && !try_module_get(rng->owner))
++		rng = NULL;
++	rcu_read_unlock();
++
++	if (!rng)
++		return 0;
++
++	filp->f_op = &extrng_urandom_fops;
++	filp->private_data = rng->owner;
++
++	return 0;
++}
++
++static int extrng_release(struct inode *inode, struct file *filp)
++{
++	module_put(filp->private_data);
++	return 0;
++}
++
++static ssize_t
++extrng_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
++{
++	return rcu_dereference_raw(extrng)->extrng_read(buf, nbytes);
++}
++
+ const struct file_operations random_fops = {
++	.open  = random_open,
+ 	.read  = random_read,
+ 	.write = random_write,
+ 	.poll  = random_poll,
+@@ -1972,6 +2039,7 @@ const struct file_operations random_fops = {
+ };
+
+ const struct file_operations urandom_fops = {
++	.open  = urandom_open,
+ 	.read  = urandom_read,
+ 	.write = random_write,
+ 	.unlocked_ioctl = random_ioctl,
+@@ -1980,9 +2048,31 @@ const struct file_operations urandom_fops = {
+ 	.llseek = noop_llseek,
+ };
+
++static const struct file_operations extrng_random_fops = {
++	.open  = random_open,
++	.read  = extrng_read,
++	.write = random_write,
++	.poll  = extrng_poll,
++	.unlocked_ioctl = random_ioctl,
++	.fasync = random_fasync,
++	.llseek = noop_llseek,
++	.release = extrng_release,
++};
++
++static const struct file_operations extrng_urandom_fops = {
++	.open  = urandom_open,
++	.read  = extrng_read,
++	.write = random_write,
++	.unlocked_ioctl = random_ioctl,
++	.fasync = random_fasync,
++	.llseek = noop_llseek,
++	.release = extrng_release,
++};
++
+ SYSCALL_DEFINE3(getrandom, char __user *, buf, size_t, count,
+ 		unsigned int, flags)
+ {
++	const struct random_extrng *rng;
+ 	int ret;
+
+ 	if (flags & ~(GRND_NONBLOCK|GRND_RANDOM|GRND_INSECURE))
+@@ -1998,6 +2088,18 @@ SYSCALL_DEFINE3(getrandom, char __user *, buf, size_t, count,
+ 	if (count > INT_MAX)
+ 		count = INT_MAX;
+
++	rcu_read_lock();
++	rng = rcu_dereference(extrng);
++	if (rng && !try_module_get(rng->owner))
++		rng = NULL;
++	rcu_read_unlock();
++
++	if (rng) {
++		ret = rng->extrng_read(buf, count);
++		module_put(rng->owner);
++		return ret;
++	}
++
+ 	if (!(flags & GRND_INSECURE) && !crng_ready()) {
+ 		if (flags & GRND_NONBLOCK)
+ 			return -EAGAIN;
+@@ -2303,3 +2405,16 @@ void add_bootloader_randomness(const void *buf, unsigned int size)
+ 		add_device_randomness(buf, size);
+ }
+ EXPORT_SYMBOL_GPL(add_bootloader_randomness);
++
++void random_register_extrng(const struct random_extrng *rng)
++{
++	rcu_assign_pointer(extrng, rng);
++}
++EXPORT_SYMBOL_GPL(random_register_extrng);
++
++void random_unregister_extrng(void)
++{
++	RCU_INIT_POINTER(extrng, NULL);
++	synchronize_rcu();
++}
++EXPORT_SYMBOL_GPL(random_unregister_extrng);
+diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile
+index 467e94259679..9b6f5b8e5397 100644
+--- a/drivers/firmware/efi/Makefile
++++ b/drivers/firmware/efi/Makefile
+@@ -28,6 +28,7 @@ obj-$(CONFIG_EFI_FAKE_MEMMAP)		+= fake_map.o
+ obj-$(CONFIG_EFI_BOOTLOADER_CONTROL)	+= efibc.o
+ obj-$(CONFIG_EFI_TEST)			+= test/
+ obj-$(CONFIG_EFI_DEV_PATH_PARSER)	+= dev-path-parser.o
++obj-$(CONFIG_EFI)			+= secureboot.o
+ obj-$(CONFIG_APPLE_PROPERTIES)		+= apple-properties.o
+ obj-$(CONFIG_EFI_RCI2_TABLE)		+= rci2-table.o
+ obj-$(CONFIG_EFI_EMBEDDED_FIRMWARE)	+= embedded-firmware.o
+diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
+index 847f33ffc4ae..363037f8eaf8 100644
+--- a/drivers/firmware/efi/efi.c
++++ b/drivers/firmware/efi/efi.c
+@@ -31,6 +31,7 @@
+ #include <linux/ucs2_string.h>
+ #include <linux/memblock.h>
+ #include <linux/security.h>
++#include <linux/bsearch.h>
+
+ #include <asm/early_ioremap.h>
+
+@@ -841,40 +842,101 @@ int efi_mem_type(unsigned long phys_addr)
+ }
+ #endif
+
++struct efi_error_code {
++	efi_status_t status;
++	int errno;
++	const char *description;
++};
++
++static const struct efi_error_code efi_error_codes[] = {
++	{ EFI_SUCCESS, 0, "Success"},
++#if 0
++	{ EFI_LOAD_ERROR, -EPICK_AN_ERRNO, "Load Error"},
++#endif
++	{ EFI_INVALID_PARAMETER, -EINVAL, "Invalid Parameter"},
++	{ EFI_UNSUPPORTED, -ENOSYS, "Unsupported"},
++	{ EFI_BAD_BUFFER_SIZE, -ENOSPC, "Bad Buffer Size"},
++	{ EFI_BUFFER_TOO_SMALL, -ENOSPC, "Buffer Too Small"},
++	{ EFI_NOT_READY, -EAGAIN, "Not Ready"},
++	{ EFI_DEVICE_ERROR, -EIO, "Device Error"},
++	{ EFI_WRITE_PROTECTED, -EROFS, "Write Protected"},
++	{ EFI_OUT_OF_RESOURCES, -ENOMEM, "Out of Resources"},
++#if 0
++	{ EFI_VOLUME_CORRUPTED, -EPICK_AN_ERRNO, "Volume Corrupt"},
++	{ EFI_VOLUME_FULL, -EPICK_AN_ERRNO, "Volume Full"},
++	{ EFI_NO_MEDIA, -EPICK_AN_ERRNO, "No Media"},
++	{ EFI_MEDIA_CHANGED, -EPICK_AN_ERRNO, "Media changed"},
++#endif
++	{ EFI_NOT_FOUND, -ENOENT, "Not Found"},
++#if 0
++	{ EFI_ACCESS_DENIED, -EPICK_AN_ERRNO, "Access Denied"},
++	{ EFI_NO_RESPONSE, -EPICK_AN_ERRNO, "No Response"},
++	{ EFI_NO_MAPPING, -EPICK_AN_ERRNO, "No mapping"},
++	{ EFI_TIMEOUT, -EPICK_AN_ERRNO, "Time out"},
++	{ EFI_NOT_STARTED, -EPICK_AN_ERRNO, "Not started"},
++	{ EFI_ALREADY_STARTED, -EPICK_AN_ERRNO, "Already started"},
++#endif
++	{ EFI_ABORTED, -EINTR, "Aborted"},
++#if 0
++	{ EFI_ICMP_ERROR, -EPICK_AN_ERRNO, "ICMP Error"},
++	{ EFI_TFTP_ERROR, -EPICK_AN_ERRNO, "TFTP Error"},
++	{ EFI_PROTOCOL_ERROR, -EPICK_AN_ERRNO, "Protocol Error"},
++	{ EFI_INCOMPATIBLE_VERSION, -EPICK_AN_ERRNO, "Incompatible Version"},
++#endif
++	{ EFI_SECURITY_VIOLATION, -EACCES, "Security Policy Violation"},
++#if 0
++	{ EFI_CRC_ERROR, -EPICK_AN_ERRNO, "CRC Error"},
++	{ EFI_END_OF_MEDIA, -EPICK_AN_ERRNO, "End of Media"},
++	{ EFI_END_OF_FILE, -EPICK_AN_ERRNO, "End of File"},
++	{ EFI_INVALID_LANGUAGE, -EPICK_AN_ERRNO, "Invalid Languages"},
++	{ EFI_COMPROMISED_DATA, -EPICK_AN_ERRNO, "Compromised Data"},
++
++	// warnings
++	{ EFI_WARN_UNKOWN_GLYPH, -EPICK_AN_ERRNO, "Warning Unknown Glyph"},
++	{ EFI_WARN_DELETE_FAILURE, -EPICK_AN_ERRNO, "Warning Delete Failure"},
++	{ EFI_WARN_WRITE_FAILURE, -EPICK_AN_ERRNO, "Warning Write Failure"},
++	{ EFI_WARN_BUFFER_TOO_SMALL, -EPICK_AN_ERRNO, "Warning Buffer Too Small"},
++#endif
++};
++
++static int
++efi_status_cmp_bsearch(const void *key, const void *item)
++{
++	u64 status = (u64)(uintptr_t)key;
++	struct efi_error_code *code = (struct efi_error_code *)item;
++
++	if (status < code->status)
++		return -1;
++	if (status > code->status)
++		return 1;
++	return 0;
++}
++
+ int efi_status_to_err(efi_status_t status)
+ {
+-	int err;
+-
+-	switch (status) {
+-	case EFI_SUCCESS:
+-		err = 0;
+-		break;
+-	case EFI_INVALID_PARAMETER:
+-		err = -EINVAL;
+-		break;
+-	case EFI_OUT_OF_RESOURCES:
+-		err = -ENOSPC;
+-		break;
+-	case EFI_DEVICE_ERROR:
+-		err = -EIO;
+-		break;
+-	case EFI_WRITE_PROTECTED:
+-		err = -EROFS;
+-		break;
+-	case EFI_SECURITY_VIOLATION:
+-		err = -EACCES;
+-		break;
+-	case EFI_NOT_FOUND:
+-		err = -ENOENT;
+-		break;
+-	case EFI_ABORTED:
+-		err = -EINTR;
+-		break;
+-	default:
+-		err = -EINVAL;
+-	}
++	struct efi_error_code *found;
++	size_t num = sizeof(efi_error_codes) / sizeof(struct efi_error_code);
+
+-	return err;
++	found = bsearch((void *)(uintptr_t)status, efi_error_codes,
++			sizeof(struct efi_error_code), num,
++			efi_status_cmp_bsearch);
++	if (!found)
++		return -EINVAL;
++	return found->errno;
++}
++
++const char *
++efi_status_to_str(efi_status_t status)
++{
++	struct efi_error_code *found;
++	size_t num = sizeof(efi_error_codes) / sizeof(struct efi_error_code);
++
++	found = bsearch((void *)(uintptr_t)status, efi_error_codes,
++			sizeof(struct efi_error_code), num,
++			efi_status_cmp_bsearch);
++	if (!found)
++		return "Unknown error code";
++	return found->description;
+ }
+
+ static DEFINE_SPINLOCK(efi_mem_reserve_persistent_lock);
+diff --git a/drivers/firmware/efi/secureboot.c b/drivers/firmware/efi/secureboot.c
+new file mode 100644
+index 000000000000..de0a3714a5d4
+--- /dev/null
++++ b/drivers/firmware/efi/secureboot.c
+@@ -0,0 +1,38 @@
++/* Core kernel secure boot support.
++ *
++ * Copyright (C) 2017 Red Hat, Inc. All Rights Reserved.
++ * Written by David Howells (dhowells@redhat.com)
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public Licence
++ * as published by the Free Software Foundation; either version
++ * 2 of the Licence, or (at your option) any later version.
++ */
++
++#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
++
++#include <linux/efi.h>
++#include <linux/kernel.h>
++#include <linux/printk.h>
++
++/*
++ * Decide what to do when UEFI secure boot mode is enabled.
++ */
++void __init efi_set_secure_boot(enum efi_secureboot_mode mode)
++{
++	if (efi_enabled(EFI_BOOT)) {
++		switch (mode) {
++		case efi_secureboot_mode_disabled:
++			pr_info("Secure boot disabled\n");
++			break;
++		case efi_secureboot_mode_enabled:
++			set_bit(EFI_SECURE_BOOT, &efi.flags);
++			pr_info("Secure boot enabled\n");
++			break;
++		default:
++			pr_warn("Secure boot could not be determined (mode %u)\n",
++				   mode);
++			break;
++		}
++	}
++}
+diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
+index 311eee599ce9..2460c6bd46f8 100644
+--- a/drivers/hid/hid-rmi.c
++++ b/drivers/hid/hid-rmi.c
+@@ -322,19 +322,12 @@ static int rmi_input_event(struct hid_device *hdev, u8 *data, int size)
+ {
+ 	struct rmi_data *hdata = hid_get_drvdata(hdev);
+ 	struct rmi_device *rmi_dev = hdata->xport.rmi_dev;
+-	unsigned long flags;
+
+ 	if (!(test_bit(RMI_STARTED, &hdata->flags)))
+ 		return 0;
+
+-	local_irq_save(flags);
+-
+ 	rmi_set_attn_data(rmi_dev, data[1], &data[2], size - 2);
+
+-	generic_handle_irq(hdata->rmi_irq);
+-
+-	local_irq_restore(flags);
+-
+ 	return 1;
+ }
+
+@@ -591,56 +584,6 @@ static const struct rmi_transport_ops hid_rmi_ops = {
+ 	.reset		= rmi_hid_reset,
+ };
+
+-static void rmi_irq_teardown(void *data)
+-{
+-	struct rmi_data *hdata = data;
+-	struct irq_domain *domain = hdata->domain;
+-
+-	if (!domain)
+-		return;
+-
+-	irq_dispose_mapping(irq_find_mapping(domain, 0));
+-
+-	irq_domain_remove(domain);
+-	hdata->domain = NULL;
+-	hdata->rmi_irq = 0;
+-}
+-
+-static int rmi_irq_map(struct irq_domain *h, unsigned int virq,
+-		       irq_hw_number_t hw_irq_num)
+-{
+-	irq_set_chip_and_handler(virq, &dummy_irq_chip, handle_simple_irq);
+-
+-	return 0;
+-}
+-
+-static const struct irq_domain_ops rmi_irq_ops = {
+-	.map = rmi_irq_map,
+-};
+-
+-static int rmi_setup_irq_domain(struct hid_device *hdev)
+-{
+-	struct rmi_data *hdata = hid_get_drvdata(hdev);
+-	int ret;
+-
+-	hdata->domain = irq_domain_create_linear(hdev->dev.fwnode, 1,
+-						 &rmi_irq_ops, hdata);
+-	if (!hdata->domain)
+-		return -ENOMEM;
+-
+-	ret = devm_add_action_or_reset(&hdev->dev, &rmi_irq_teardown, hdata);
+-	if (ret)
+-		return ret;
+-
+-	hdata->rmi_irq = irq_create_mapping(hdata->domain, 0);
+-	if (hdata->rmi_irq <= 0) {
+-		hid_err(hdev, "Can't allocate an IRQ\n");
+-		return hdata->rmi_irq < 0 ? hdata->rmi_irq : -ENXIO;
+-	}
+-
+-	return 0;
+-}
+-
+ static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id)
+ {
+ 	struct rmi_data *data = NULL;
+@@ -713,18 +656,11 @@ static int rmi_probe(struct hid_device *hdev, const struct hid_device_id *id)
+
+ 	mutex_init(&data->page_mutex);
+
+-	ret = rmi_setup_irq_domain(hdev);
+-	if (ret) {
+-		hid_err(hdev, "failed to allocate IRQ domain\n");
+-		return ret;
+-	}
+-
+ 	if (data->device_flags & RMI_DEVICE_HAS_PHYS_BUTTONS)
+ 		rmi_hid_pdata.gpio_data.disable = true;
+
+ 	data->xport.dev = hdev->dev.parent;
+ 	data->xport.pdata = rmi_hid_pdata;
+-	data->xport.pdata.irq = data->rmi_irq;
+ 	data->xport.proto_name = "hid";
+ 	data->xport.ops = &hid_rmi_ops;
+
+diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
+index da27cd4a3c38..5404b4c407c5 100644
+--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
++++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
+@@ -9,6 +9,7 @@
+ #include <linux/init.h>
+ #include <linux/types.h>
+ #include <linux/device.h>
++#include <linux/dmi.h>
+ #include <linux/io.h>
+ #include <linux/err.h>
+ #include <linux/fs.h>
+@@ -2071,6 +2072,16 @@ static const struct amba_id etm4_ids[] = {
+ 	{},
+ };
+
++static const struct dmi_system_id broken_coresight[] = {
++	{
++		.matches = {
++			DMI_MATCH(DMI_SYS_VENDOR, "HPE"),
++			DMI_MATCH(DMI_PRODUCT_NAME, "Apollo 70"),
++		},
++	},
++	{ }	/* terminating entry */
++};
++
+ MODULE_DEVICE_TABLE(amba, etm4_ids);
+
+ static struct amba_driver etm4x_amba_driver = {
+@@ -2104,6 +2115,11 @@ static int __init etm4x_init(void)
+ {
+ 	int ret;
+
++	if (dmi_check_system(broken_coresight)) {
++		pr_info("ETM4 disabled due to firmware bug\n");
++		return 0;
++	}
++
+ 	ret = etm4_pm_setup();
+
+ 	/* etm4_pm_setup() does its own cleanup - exit on error */
+@@ -2130,6 +2146,9 @@ static int __init etm4x_init(void)
+
+ static void __exit etm4x_exit(void)
+ {
++	if (dmi_check_system(broken_coresight))
++		return;
++
+ 	amba_driver_unregister(&etm4x_amba_driver);
+ 	platform_driver_unregister(&etm4_platform_driver);
+ 	etm4_pm_clear();
+diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c
+index 258d5fe3d395..f7298e3dc8f3 100644
+--- a/drivers/input/rmi4/rmi_driver.c
++++ b/drivers/input/rmi4/rmi_driver.c
+@@ -182,34 +182,47 @@ void rmi_set_attn_data(struct rmi_device *rmi_dev, unsigned long irq_status,
+ 	attn_data.data = fifo_data;
+
+ 	kfifo_put(&drvdata->attn_fifo, attn_data);
++
++	schedule_work(&drvdata->attn_work);
+ }
+ EXPORT_SYMBOL_GPL(rmi_set_attn_data);
+
+-static irqreturn_t rmi_irq_fn(int irq, void *dev_id)
++static void attn_callback(struct work_struct *work)
+ {
+-	struct rmi_device *rmi_dev = dev_id;
+-	struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
++	struct rmi_driver_data *drvdata = container_of(work,
++							struct rmi_driver_data,
++							attn_work);
+ 	struct rmi4_attn_data attn_data = {0};
+ 	int ret, count;
+
+ 	count = kfifo_get(&drvdata->attn_fifo, &attn_data);
+-	if (count) {
+-		*(drvdata->irq_status) = attn_data.irq_status;
+-		drvdata->attn_data = attn_data;
+-	}
++	if (!count)
++		return;
+
+-	ret = rmi_process_interrupt_requests(rmi_dev);
++	*(drvdata->irq_status) = attn_data.irq_status;
++	drvdata->attn_data = attn_data;
++
++	ret = rmi_process_interrupt_requests(drvdata->rmi_dev);
+ 	if (ret)
+-		rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev,
++		rmi_dbg(RMI_DEBUG_CORE, &drvdata->rmi_dev->dev,
+ 			"Failed to process interrupt request: %d\n", ret);
+
+-	if (count) {
+-		kfree(attn_data.data);
+-		drvdata->attn_data.data = NULL;
+-	}
++	kfree(attn_data.data);
++	drvdata->attn_data.data = NULL;
+
+ 	if (!kfifo_is_empty(&drvdata->attn_fifo))
+-		return rmi_irq_fn(irq, dev_id);
++		schedule_work(&drvdata->attn_work);
++}
++
++static irqreturn_t rmi_irq_fn(int irq, void *dev_id)
++{
++	struct rmi_device *rmi_dev = dev_id;
++	int ret;
++
++	ret = rmi_process_interrupt_requests(rmi_dev);
++	if (ret)
++		rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev,
++			"Failed to process interrupt request: %d\n", ret);
+
+ 	return IRQ_HANDLED;
+ }
+@@ -217,7 +230,6 @@ static irqreturn_t rmi_irq_fn(int irq, void *dev_id)
+ static int rmi_irq_init(struct rmi_device *rmi_dev)
+ {
+ 	struct rmi_device_platform_data *pdata = rmi_get_platform_data(rmi_dev);
+-	struct rmi_driver_data *data = dev_get_drvdata(&rmi_dev->dev);
+ 	int irq_flags = irq_get_trigger_type(pdata->irq);
+ 	int ret;
+
+@@ -235,8 +247,6 @@ static int rmi_irq_init(struct rmi_device *rmi_dev)
+ 		return ret;
+ 	}
+
+-	data->enabled = true;
+-
+ 	return 0;
+ }
+
+@@ -886,23 +896,27 @@ void rmi_enable_irq(struct rmi_device *rmi_dev, bool clear_wake)
+ 	if (data->enabled)
+ 		goto out;
+
+-	enable_irq(irq);
+-	data->enabled = true;
+-	if (clear_wake && device_may_wakeup(rmi_dev->xport->dev)) {
+-		retval = disable_irq_wake(irq);
+-		if (retval)
+-			dev_warn(&rmi_dev->dev,
+-				 "Failed to disable irq for wake: %d\n",
+-				 retval);
+-	}
++	if (irq) {
++		enable_irq(irq);
++		data->enabled = true;
++		if (clear_wake && device_may_wakeup(rmi_dev->xport->dev)) {
++			retval = disable_irq_wake(irq);
++			if (retval)
++				dev_warn(&rmi_dev->dev,
++					 "Failed to disable irq for wake: %d\n",
++					 retval);
++		}
+
+-	/*
+-	 * Call rmi_process_interrupt_requests() after enabling irq,
+-	 * otherwise we may lose interrupt on edge-triggered systems.
+-	 */
+-	irq_flags = irq_get_trigger_type(pdata->irq);
+-	if (irq_flags & IRQ_TYPE_EDGE_BOTH)
+-		rmi_process_interrupt_requests(rmi_dev);
++		/*
++		 * Call rmi_process_interrupt_requests() after enabling irq,
++		 * otherwise we may lose interrupt on edge-triggered systems.
++		 */
++		irq_flags = irq_get_trigger_type(pdata->irq);
++		if (irq_flags & IRQ_TYPE_EDGE_BOTH)
++			rmi_process_interrupt_requests(rmi_dev);
++	} else {
++		data->enabled = true;
++	}
+
+ out:
+ 	mutex_unlock(&data->enabled_mutex);
+@@ -922,20 +936,22 @@ void rmi_disable_irq(struct rmi_device *rmi_dev, bool enable_wake)
+ 		goto out;
+
+ 	data->enabled = false;
+-	disable_irq(irq);
+-	if (enable_wake && device_may_wakeup(rmi_dev->xport->dev)) {
+-		retval = enable_irq_wake(irq);
+-		if (retval)
+-			dev_warn(&rmi_dev->dev,
+-				 "Failed to enable irq for wake: %d\n",
+-				 retval);
+-	}
+-
+-	/* make sure the fifo is clean */
+-	while (!kfifo_is_empty(&data->attn_fifo)) {
+-		count = kfifo_get(&data->attn_fifo, &attn_data);
+-		if (count)
+-			kfree(attn_data.data);
++	if (irq) {
++		disable_irq(irq);
++		if (enable_wake && device_may_wakeup(rmi_dev->xport->dev)) {
++			retval = enable_irq_wake(irq);
++			if (retval)
++				dev_warn(&rmi_dev->dev,
++					 "Failed to enable irq for wake: %d\n",
++					 retval);
++		}
++	} else {
++		/* make sure the fifo is clean */
++		while (!kfifo_is_empty(&data->attn_fifo)) {
++			count = kfifo_get(&data->attn_fifo, &attn_data);
++			if (count)
++				kfree(attn_data.data);
++		}
+ 	}
+
+ out:
+@@ -981,6 +997,8 @@ static int rmi_driver_remove(struct device *dev)
+ 	irq_domain_remove(data->irqdomain);
+ 	data->irqdomain = NULL;
+
++	cancel_work_sync(&data->attn_work);
++
+ 	rmi_f34_remove_sysfs(rmi_dev);
+ 	rmi_free_function_list(rmi_dev);
+
+@@ -1219,9 +1237,15 @@ static int rmi_driver_probe(struct device *dev)
+ 		}
+ 	}
+
+-	retval = rmi_irq_init(rmi_dev);
+-	if (retval < 0)
+-		goto err_destroy_functions;
++	if (pdata->irq) {
++		retval = rmi_irq_init(rmi_dev);
++		if (retval < 0)
++			goto err_destroy_functions;
++	}
++
++	data->enabled = true;
++
++	INIT_WORK(&data->attn_work, attn_callback);
+
+ 	if (data->f01_container->dev.driver) {
+ 		/* Driver already bound, so enable ATTN now. */
+diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
+index 63f0af10c403..195be16dbd39 100644
+--- a/drivers/iommu/iommu.c
++++ b/drivers/iommu/iommu.c
+@@ -7,6 +7,7 @@
+ #define pr_fmt(fmt)    "iommu: " fmt
+
+ #include <linux/device.h>
++#include <linux/dmi.h>
+ #include <linux/kernel.h>
+ #include <linux/bug.h>
+ #include <linux/types.h>
+@@ -3039,6 +3040,27 @@ u32 iommu_sva_get_pasid(struct iommu_sva *handle)
+ }
+ EXPORT_SYMBOL_GPL(iommu_sva_get_pasid);
+
++#ifdef CONFIG_ARM64
++static int __init iommu_quirks(void)
++{
++	const char *vendor, *name;
++
++	vendor = dmi_get_system_info(DMI_SYS_VENDOR);
++	name = dmi_get_system_info(DMI_PRODUCT_NAME);
++
++	if (vendor &&
++	    (strncmp(vendor, "GIGABYTE", 8) == 0 && name &&
++	     (strncmp(name, "R120", 4) == 0 ||
++	      strncmp(name, "R270", 4) == 0))) {
++		pr_warn("Gigabyte %s detected, force iommu passthrough mode", name);
++		iommu_def_domain_type = IOMMU_DOMAIN_IDENTITY;
++	}
++
++	return 0;
++}
++arch_initcall(iommu_quirks);
++#endif
++
+ /*
+  * Changes the default domain of an iommu group that has *only* one device
+  *
+diff --git a/drivers/net/wireguard/main.c b/drivers/net/wireguard/main.c
+index 75dbe77b0b4b..4bd6dd722f44 100644
+--- a/drivers/net/wireguard/main.c
++++ b/drivers/net/wireguard/main.c
+@@ -12,6 +12,7 @@
+
+ #include <uapi/linux/wireguard.h>
+
++#include <linux/fips.h>
+ #include <linux/init.h>
+ #include <linux/module.h>
+ #include <linux/genetlink.h>
+@@ -21,6 +22,11 @@ static int __init mod_init(void)
+ {
+ 	int ret;
+
++#ifdef CONFIG_RHEL_DIFFERENCES
++	if (fips_enabled)
++		return -EOPNOTSUPP;
++#endif
++
+ 	ret = wg_allowedips_slab_init();
+ 	if (ret < 0)
+ 		goto err_allowedips;
+diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
+index 8c3c1ef92171..18431236ab9f 100644
+--- a/drivers/pci/quirks.c
++++ b/drivers/pci/quirks.c
+@@ -4232,6 +4232,30 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9000,
+ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9084,
+ 				quirk_bridge_cavm_thrx2_pcie_root);
+
++/*
++ * PCI BAR 5 is not setup correctly for the on-board AHCI controller
++ * on Broadcom's Vulcan processor. Added a quirk to fix BAR 5 by
++ * using BAR 4's resources which are populated correctly and NOT
++ * actually used by the AHCI controller.
++ */
++static void quirk_fix_vulcan_ahci_bars(struct pci_dev *dev)
++{
++	struct resource *r =  &dev->resource[4];
++
++	if (!(r->flags & IORESOURCE_MEM) || (r->start == 0))
++		return;
++
++	/* Set BAR5 resource to BAR4 */
++	dev->resource[5] = *r;
++
++	/* Update BAR5 in pci config space */
++	pci_write_config_dword(dev, PCI_BASE_ADDRESS_5, r->start);
++
++	/* Clear BAR4's resource */
++	memset(r, 0, sizeof(*r));
++}
++DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, 0x9027, quirk_fix_vulcan_ahci_bars);
++
+ /*
+  * Intersil/Techwell TW686[4589]-based video capture cards have an empty (zero)
+  * class code.  Fix it.
+diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
+index 86658a81d284..5647f4756e97 100644
+--- a/drivers/usb/core/hub.c
++++ b/drivers/usb/core/hub.c
+@@ -5657,6 +5657,13 @@ static void hub_event(struct work_struct *work)
+ 			(u16) hub->change_bits[0],
+ 			(u16) hub->event_bits[0]);
+
++	/* Don't disconnect USB-SATA on TrimSlice */
++	if (strcmp(dev_name(hdev->bus->controller), "tegra-ehci.0") == 0) {
++		if ((hdev->state == 7) && (hub->change_bits[0] == 0) &&
++				(hub->event_bits[0] == 0x2))
++			hub->event_bits[0] = 0;
++	}
++
+ 	/* Lock the device, then check to see if we were
+ 	 * disconnected while waiting for the lock to succeed. */
+ 	usb_lock_device(hdev);
+diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
+index 2c9e26a44546..f96324912d6a 100644
+--- a/fs/xfs/xfs_super.c
++++ b/fs/xfs/xfs_super.c
+@@ -1539,10 +1539,6 @@ xfs_fs_fill_super(
+ 	if (XFS_SB_VERSION_NUM(&mp->m_sb) == XFS_SB_VERSION_5)
+ 		sb->s_flags |= SB_I_VERSION;
+
+-	if (xfs_sb_version_hasbigtime(&mp->m_sb))
+-		xfs_warn(mp,
+- "EXPERIMENTAL big timestamp feature in use. Use at your own risk!");
+-
+ 	if (mp->m_flags & XFS_MOUNT_DAX_ALWAYS) {
+ 		bool rtdev_is_dax = false, datadev_is_dax;
+
+@@ -1598,10 +1594,6 @@ xfs_fs_fill_super(
+ 		goto out_filestream_unmount;
+ 	}
+
+-	if (xfs_sb_version_hasinobtcounts(&mp->m_sb))
+-		xfs_warn(mp,
+- "EXPERIMENTAL inode btree counters feature in use. Use at your own risk!");
+-
+ 	error = xfs_mountfs(mp);
+ 	if (error)
+ 		goto out_filestream_unmount;
+diff --git a/include/linux/efi.h b/include/linux/efi.h
+index 6b5d36babfcc..fd4a5d66a9d0 100644
+--- a/include/linux/efi.h
++++ b/include/linux/efi.h
+@@ -43,6 +43,8 @@
+ #define EFI_ABORTED		(21 | (1UL << (BITS_PER_LONG-1)))
+ #define EFI_SECURITY_VIOLATION	(26 | (1UL << (BITS_PER_LONG-1)))
+
++#define EFI_IS_ERROR(x)		((x) & (1UL << (BITS_PER_LONG-1)))
++
+ typedef unsigned long efi_status_t;
+ typedef u8 efi_bool_t;
+ typedef u16 efi_char16_t;		/* UNICODE character */
+@@ -782,6 +784,14 @@ extern int __init efi_setup_pcdp_console(char *);
+ #define EFI_MEM_ATTR		10	/* Did firmware publish an EFI_MEMORY_ATTRIBUTES table? */
+ #define EFI_MEM_NO_SOFT_RESERVE	11	/* Is the kernel configured to ignore soft reservations? */
+ #define EFI_PRESERVE_BS_REGIONS	12	/* Are EFI boot-services memory segments available? */
++#define EFI_SECURE_BOOT		13	/* Are we in Secure Boot mode? */
++
++enum efi_secureboot_mode {
++	efi_secureboot_mode_unset,
++	efi_secureboot_mode_unknown,
++	efi_secureboot_mode_disabled,
++	efi_secureboot_mode_enabled,
++};
+
+ #ifdef CONFIG_EFI
+ /*
+@@ -793,6 +803,8 @@ static inline bool efi_enabled(int feature)
+ }
+ extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused);
+
++extern void __init efi_set_secure_boot(enum efi_secureboot_mode mode);
++
+ bool __pure __efi_soft_reserve_enabled(void);
+
+ static inline bool __pure efi_soft_reserve_enabled(void)
+@@ -813,6 +825,8 @@ static inline bool efi_enabled(int feature)
+ static inline void
+ efi_reboot(enum reboot_mode reboot_mode, const char *__unused) {}
+
++static inline void efi_set_secure_boot(enum efi_secureboot_mode mode) {}
++
+ static inline bool efi_soft_reserve_enabled(void)
+ {
+ 	return false;
+@@ -825,6 +839,7 @@ static inline bool efi_rt_services_supported(unsigned int mask)
+ #endif
+
+ extern int efi_status_to_err(efi_status_t status);
++extern const char *efi_status_to_str(efi_status_t status);
+
+ /*
+  * Variable Attributes
+@@ -1077,13 +1092,6 @@ static inline bool efi_runtime_disabled(void) { return true; }
+ extern void efi_call_virt_check_flags(unsigned long flags, const char *call);
+ extern unsigned long efi_call_virt_save_flags(void);
+
+-enum efi_secureboot_mode {
+-	efi_secureboot_mode_unset,
+-	efi_secureboot_mode_unknown,
+-	efi_secureboot_mode_disabled,
+-	efi_secureboot_mode_enabled,
+-};
+-
+ static inline
+ enum efi_secureboot_mode efi_get_secureboot_mode(efi_get_variable_t *get_var)
+ {
+diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
+index 2adeea44c0d5..517013ece679 100644
+--- a/include/linux/lsm_hook_defs.h
++++ b/include/linux/lsm_hook_defs.h
+@@ -394,6 +394,8 @@ LSM_HOOK(void, LSM_RET_VOID, bpf_prog_free_security, struct bpf_prog_aux *aux)
+ #endif /* CONFIG_BPF_SYSCALL */
+
+ LSM_HOOK(int, 0, locked_down, enum lockdown_reason what)
++LSM_HOOK(int, 0, lock_kernel_down, const char *where, enum lockdown_reason level)
++
+
+ #ifdef CONFIG_PERF_EVENTS
+ LSM_HOOK(int, 0, perf_event_open, struct perf_event_attr *attr, int type)
+diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
+index 5c4c5c0602cb..753b53038690 100644
+--- a/include/linux/lsm_hooks.h
++++ b/include/linux/lsm_hooks.h
+@@ -1545,6 +1545,12 @@
+  *
+  *     @what: kernel feature being accessed
+  *
++ * @lock_kernel_down
++ * 	Put the kernel into lock-down mode.
++ *
++ * 	@where: Where the lock-down is originating from (e.g. command line option)
++ * 	@level: The lock-down level (can only increase)
++ *
+  * Security hooks for perf events
+  *
+  * @perf_event_open:
+diff --git a/include/linux/random.h b/include/linux/random.h
+index f45b8be3e3c4..7ccdec68b789 100644
+--- a/include/linux/random.h
++++ b/include/linux/random.h
+@@ -14,6 +14,11 @@
+
+ #include <uapi/linux/random.h>
+
++struct random_extrng {
++	ssize_t (*extrng_read)(void __user *buf, size_t buflen);
++	struct module *owner;
++};
++
+ struct random_ready_callback {
+ 	struct list_head list;
+ 	void (*func)(struct random_ready_callback *rdy);
+@@ -44,6 +49,8 @@ extern bool rng_is_initialized(void);
+ extern int add_random_ready_callback(struct random_ready_callback *rdy);
+ extern void del_random_ready_callback(struct random_ready_callback *rdy);
+ extern int __must_check get_random_bytes_arch(void *buf, int nbytes);
++void random_register_extrng(const struct random_extrng *rng);
++void random_unregister_extrng(void);
+
+ #ifndef MODULE
+ extern const struct file_operations random_fops, urandom_fops;
+diff --git a/include/linux/rmi.h b/include/linux/rmi.h
+index ab7eea01ab42..fff7c5f737fc 100644
+--- a/include/linux/rmi.h
++++ b/include/linux/rmi.h
+@@ -364,6 +364,7 @@ struct rmi_driver_data {
+
+ 	struct rmi4_attn_data attn_data;
+ 	DECLARE_KFIFO(attn_fifo, struct rmi4_attn_data, 16);
++	struct work_struct attn_work;
+ };
+
+ int rmi_register_transport_device(struct rmi_transport_dev *xport);
+diff --git a/include/linux/security.h b/include/linux/security.h
+index 5b7288521300..f966f591c91e 100644
+--- a/include/linux/security.h
++++ b/include/linux/security.h
+@@ -472,6 +472,7 @@ int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
+ int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
+ int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
+ int security_locked_down(enum lockdown_reason what);
++int security_lock_kernel_down(const char *where, enum lockdown_reason level);
+ #else /* CONFIG_SECURITY */
+
+ static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
+@@ -1348,6 +1349,10 @@ static inline int security_locked_down(enum lockdown_reason what)
+ {
+ 	return 0;
+ }
++static inline int security_lock_kernel_down(const char *where, enum lockdown_reason level)
++{
++	return 0;
++}
+ #endif	/* CONFIG_SECURITY */
+
+ #if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE)
+diff --git a/init/Kconfig b/init/Kconfig
+index 55f9f7738ebb..564553afb251 100644
+--- a/init/Kconfig
++++ b/init/Kconfig
+@@ -1625,7 +1625,7 @@ config AIO
+ 	  this option saves about 7k.
+
+ config IO_URING
+-	bool "Enable IO uring support" if EXPERT
++	bool "Enable IO uring support"
+ 	select IO_WQ
+ 	default y
+ 	help
+diff --git a/kernel/module_signing.c b/kernel/module_signing.c
+index 8723ae70ea1f..fb2d773498c2 100644
+--- a/kernel/module_signing.c
++++ b/kernel/module_signing.c
+@@ -38,8 +38,15 @@ int mod_verify_sig(const void *mod, struct load_info *info)
+ 	modlen -= sig_len + sizeof(ms);
+ 	info->len = modlen;
+
+-	return verify_pkcs7_signature(mod, modlen, mod + modlen, sig_len,
++	ret = verify_pkcs7_signature(mod, modlen, mod + modlen, sig_len,
+ 				      VERIFY_USE_SECONDARY_KEYRING,
+ 				      VERIFYING_MODULE_SIGNATURE,
+ 				      NULL, NULL);
++	if (ret == -ENOKEY && IS_ENABLED(CONFIG_INTEGRITY_PLATFORM_KEYRING)) {
++		ret = verify_pkcs7_signature(mod, modlen, mod + modlen, sig_len,
++				VERIFY_USE_PLATFORM_KEYRING,
++				VERIFYING_MODULE_SIGNATURE,
++				NULL, NULL);
++	}
++	return ret;
+ }
+diff --git a/mm/cma.c b/mm/cma.c
+index 995e15480937..588f7e7885cf 100644
+--- a/mm/cma.c
++++ b/mm/cma.c
+@@ -125,6 +125,12 @@ static void __init cma_activate_area(struct cma *cma)
+ 	spin_lock_init(&cma->mem_head_lock);
+ #endif
+
++#ifdef CONFIG_RHEL_DIFFERENCES
++	/* s390x and ppc64 has been using CMA already in RHEL 8 as default. */
++	if (!IS_ENABLED(CONFIG_S390) && !IS_ENABLED(CONFIG_PPC64))
++		mark_tech_preview("CMA", NULL);
++#endif /* CONFIG_RHEL_DIFFERENCES */
++
+ 	return;
+
+ not_in_zone:
+@@ -437,6 +443,10 @@ struct page *cma_alloc(struct cma *cma, unsigned long count,
+ 	if (!cma || !cma->count || !cma->bitmap)
+ 		goto out;
+
++#ifdef CONFIG_RHEL_DIFFERENCES
++	pr_info_once("Initial CMA usage detected\n");
++#endif /* CONFIG_RHEL_DIFFERENCES */
++
+ 	pr_debug("%s(cma %p, count %lu, align %d)\n", __func__, (void *)cma,
+ 		 count, align);
+
+diff --git a/security/integrity/platform_certs/load_uefi.c b/security/integrity/platform_certs/load_uefi.c
+index f290f78c3f30..d3e7ae04f5be 100644
+--- a/security/integrity/platform_certs/load_uefi.c
++++ b/security/integrity/platform_certs/load_uefi.c
+@@ -46,7 +46,8 @@ static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid,
+ 		return NULL;
+
+ 	if (*status != EFI_BUFFER_TOO_SMALL) {
+-		pr_err("Couldn't get size: 0x%lx\n", *status);
++		pr_err("Couldn't get size: %s (0x%lx)\n",
++		       efi_status_to_str(*status), *status);
+ 		return NULL;
+ 	}
+
+@@ -57,7 +58,8 @@ static __init void *get_cert_list(efi_char16_t *name, efi_guid_t *guid,
+ 	*status = efi.get_variable(name, guid, NULL, &lsize, db);
+ 	if (*status != EFI_SUCCESS) {
+ 		kfree(db);
+-		pr_err("Error reading db var: 0x%lx\n", *status);
++		pr_err("Error reading db var: %s (0x%lx)\n",
++		       efi_status_to_str(*status), *status);
+ 		return NULL;
+ 	}
+
+diff --git a/security/lockdown/Kconfig b/security/lockdown/Kconfig
+index e84ddf484010..d0501353a4b9 100644
+--- a/security/lockdown/Kconfig
++++ b/security/lockdown/Kconfig
+@@ -16,6 +16,19 @@ config SECURITY_LOCKDOWN_LSM_EARLY
+ 	  subsystem is fully initialised. If enabled, lockdown will
+ 	  unconditionally be called before any other LSMs.
+
++config LOCK_DOWN_IN_EFI_SECURE_BOOT
++	bool "Lock down the kernel in EFI Secure Boot mode"
++	default n
++	depends on EFI && SECURITY_LOCKDOWN_LSM_EARLY
++	help
++	  UEFI Secure Boot provides a mechanism for ensuring that the firmware
++	  will only load signed bootloaders and kernels.  Secure boot mode may
++	  be determined from EFI variables provided by the system firmware if
++	  not indicated by the boot parameters.
++
++	  Enabling this option results in kernel lockdown being triggered if
++	  EFI Secure Boot is set.
++
+ choice
+ 	prompt "Kernel default lockdown mode"
+ 	default LOCK_DOWN_KERNEL_FORCE_NONE
+diff --git a/security/lockdown/lockdown.c b/security/lockdown/lockdown.c
+index 87cbdc64d272..18555cf18da7 100644
+--- a/security/lockdown/lockdown.c
++++ b/security/lockdown/lockdown.c
+@@ -73,6 +73,7 @@ static int lockdown_is_locked_down(enum lockdown_reason what)
+
+ static struct security_hook_list lockdown_hooks[] __lsm_ro_after_init = {
+ 	LSM_HOOK_INIT(locked_down, lockdown_is_locked_down),
++	LSM_HOOK_INIT(lock_kernel_down, lock_kernel_down),
+ };
+
+ static int __init lockdown_lsm_init(void)
+diff --git a/security/security.c b/security/security.c
+index 9ffa9e9c5c55..36484cc9842d 100644
+--- a/security/security.c
++++ b/security/security.c
+@@ -2599,6 +2599,12 @@ int security_locked_down(enum lockdown_reason what)
+ }
+ EXPORT_SYMBOL(security_locked_down);
+
++int security_lock_kernel_down(const char *where, enum lockdown_reason level)
++{
++	return call_int_hook(lock_kernel_down, 0, where, level);
++}
++EXPORT_SYMBOL(security_lock_kernel_down);
++
+ #ifdef CONFIG_PERF_EVENTS
+ int security_perf_event_open(struct perf_event_attr *attr, int type)
+ {
+diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
+index f405b20c1e6c..a8e298a22709 100644
+--- a/tools/testing/selftests/bpf/Makefile
++++ b/tools/testing/selftests/bpf/Makefile
+@@ -424,7 +424,6 @@ $(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o:			\
+ 		      $(TRUNNER_BPF_OBJS)				\
+ 		      $(TRUNNER_BPF_SKELS)				\
+ 		      $(TRUNNER_BPF_LSKELS)				\
+-		      $(TRUNNER_BPF_SKELS_LINKED)			\
+ 		      $$(BPFOBJ) | $(TRUNNER_OUTPUT)
+ 	$$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
+ 	$(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
+diff --git a/tools/testing/selftests/bpf/prog_tests/linked_funcs.c b/tools/testing/selftests/bpf/prog_tests/linked_funcs.c
+deleted file mode 100644
+index e9916f2817ec..000000000000
+--- a/tools/testing/selftests/bpf/prog_tests/linked_funcs.c
++++ /dev/null
+@@ -1,42 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0
+-/* Copyright (c) 2021 Facebook */
+-
+-#include <test_progs.h>
+-#include <sys/syscall.h>
+-#include "linked_funcs.skel.h"
+-
+-void test_linked_funcs(void)
+-{
+-	int err;
+-	struct linked_funcs *skel;
+-
+-	skel = linked_funcs__open();
+-	if (!ASSERT_OK_PTR(skel, "skel_open"))
+-		return;
+-
+-	skel->rodata->my_tid = syscall(SYS_gettid);
+-	skel->bss->syscall_id = SYS_getpgid;
+-
+-	err = linked_funcs__load(skel);
+-	if (!ASSERT_OK(err, "skel_load"))
+-		goto cleanup;
+-
+-	err = linked_funcs__attach(skel);
+-	if (!ASSERT_OK(err, "skel_attach"))
+-		goto cleanup;
+-
+-	/* trigger */
+-	syscall(SYS_getpgid);
+-
+-	ASSERT_EQ(skel->bss->output_val1, 2000 + 2000, "output_val1");
+-	ASSERT_EQ(skel->bss->output_ctx1, SYS_getpgid, "output_ctx1");
+-	ASSERT_EQ(skel->bss->output_weak1, 42, "output_weak1");
+-
+-	ASSERT_EQ(skel->bss->output_val2, 2 * 1000 + 2 * (2 * 1000), "output_val2");
+-	ASSERT_EQ(skel->bss->output_ctx2, SYS_getpgid, "output_ctx2");
+-	/* output_weak2 should never be updated */
+-	ASSERT_EQ(skel->bss->output_weak2, 0, "output_weak2");
+-
+-cleanup:
+-	linked_funcs__destroy(skel);
+-}
+diff --git a/tools/testing/selftests/bpf/prog_tests/linked_maps.c b/tools/testing/selftests/bpf/prog_tests/linked_maps.c
+deleted file mode 100644
+index 85dcaaaf2775..000000000000
+--- a/tools/testing/selftests/bpf/prog_tests/linked_maps.c
++++ /dev/null
+@@ -1,30 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0
+-/* Copyright (c) 2021 Facebook */
+-
+-#include <test_progs.h>
+-#include <sys/syscall.h>
+-#include "linked_maps.skel.h"
+-
+-void test_linked_maps(void)
+-{
+-	int err;
+-	struct linked_maps *skel;
+-
+-	skel = linked_maps__open_and_load();
+-	if (!ASSERT_OK_PTR(skel, "skel_open"))
+-		return;
+-
+-	err = linked_maps__attach(skel);
+-	if (!ASSERT_OK(err, "skel_attach"))
+-		goto cleanup;
+-
+-	/* trigger */
+-	syscall(SYS_getpgid);
+-
+-	ASSERT_EQ(skel->bss->output_first1, 2000, "output_first1");
+-	ASSERT_EQ(skel->bss->output_second1, 2, "output_second1");
+-	ASSERT_EQ(skel->bss->output_weak1, 2, "output_weak1");
+-
+-cleanup:
+-	linked_maps__destroy(skel);
+-}
+diff --git a/tools/testing/selftests/bpf/prog_tests/linked_vars.c b/tools/testing/selftests/bpf/prog_tests/linked_vars.c
+deleted file mode 100644
+index 267166abe4c1..000000000000
+--- a/tools/testing/selftests/bpf/prog_tests/linked_vars.c
++++ /dev/null
+@@ -1,43 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0
+-/* Copyright (c) 2021 Facebook */
+-
+-#include <test_progs.h>
+-#include <sys/syscall.h>
+-#include "linked_vars.skel.h"
+-
+-void test_linked_vars(void)
+-{
+-	int err;
+-	struct linked_vars *skel;
+-
+-	skel = linked_vars__open();
+-	if (!ASSERT_OK_PTR(skel, "skel_open"))
+-		return;
+-
+-	skel->bss->input_bss1 = 1000;
+-	skel->bss->input_bss2 = 2000;
+-	skel->bss->input_bss_weak = 3000;
+-
+-	err = linked_vars__load(skel);
+-	if (!ASSERT_OK(err, "skel_load"))
+-		goto cleanup;
+-
+-	err = linked_vars__attach(skel);
+-	if (!ASSERT_OK(err, "skel_attach"))
+-		goto cleanup;
+-
+-	/* trigger */
+-	syscall(SYS_getpgid);
+-
+-	ASSERT_EQ(skel->bss->output_bss1, 1000 + 2000 + 3000, "output_bss1");
+-	ASSERT_EQ(skel->bss->output_bss2, 1000 + 2000 + 3000, "output_bss2");
+-	/* 10 comes from "winner" input_data_weak in first obj file */
+-	ASSERT_EQ(skel->bss->output_data1, 1 + 2 + 10, "output_bss1");
+-	ASSERT_EQ(skel->bss->output_data2, 1 + 2 + 10, "output_bss2");
+-	/* 100 comes from "winner" input_rodata_weak in first obj file */
+-	ASSERT_EQ(skel->bss->output_rodata1, 11 + 22 + 100, "output_weak1");
+-	ASSERT_EQ(skel->bss->output_rodata2, 11 + 22 + 100, "output_weak2");
+-
+-cleanup:
+-	linked_vars__destroy(skel);
+-}
+diff --git a/tools/testing/selftests/bpf/progs/bpf_cubic.c b/tools/testing/selftests/bpf/progs/bpf_cubic.c
+deleted file mode 100644
+index f62df4d023f9..000000000000
+--- a/tools/testing/selftests/bpf/progs/bpf_cubic.c
++++ /dev/null
+@@ -1,545 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0-only
+-
+-/* WARNING: This implemenation is not necessarily the same
+- * as the tcp_cubic.c.  The purpose is mainly for testing
+- * the kernel BPF logic.
+- *
+- * Highlights:
+- * 1. CONFIG_HZ .kconfig map is used.
+- * 2. In bictcp_update(), calculation is changed to use usec
+- *    resolution (i.e. USEC_PER_JIFFY) instead of using jiffies.
+- *    Thus, usecs_to_jiffies() is not used in the bpf_cubic.c.
+- * 3. In bitctcp_update() [under tcp_friendliness], the original
+- *    "while (ca->ack_cnt > delta)" loop is changed to the equivalent
+- *    "ca->ack_cnt / delta" operation.
+- */
+-
+-#include <linux/bpf.h>
+-#include <linux/stddef.h>
+-#include <linux/tcp.h>
+-#include "bpf_tcp_helpers.h"
+-
+-char _license[] SEC("license") = "GPL";
+-
+-#define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi)
+-
+-#define BICTCP_BETA_SCALE    1024	/* Scale factor beta calculation
+-					 * max_cwnd = snd_cwnd * beta
+-					 */
+-#define	BICTCP_HZ		10	/* BIC HZ 2^10 = 1024 */
+-
+-/* Two methods of hybrid slow start */
+-#define HYSTART_ACK_TRAIN	0x1
+-#define HYSTART_DELAY		0x2
+-
+-/* Number of delay samples for detecting the increase of delay */
+-#define HYSTART_MIN_SAMPLES	8
+-#define HYSTART_DELAY_MIN	(4000U)	/* 4ms */
+-#define HYSTART_DELAY_MAX	(16000U)	/* 16 ms */
+-#define HYSTART_DELAY_THRESH(x)	clamp(x, HYSTART_DELAY_MIN, HYSTART_DELAY_MAX)
+-
+-static int fast_convergence = 1;
+-static const int beta = 717;	/* = 717/1024 (BICTCP_BETA_SCALE) */
+-static int initial_ssthresh;
+-static const int bic_scale = 41;
+-static int tcp_friendliness = 1;
+-
+-static int hystart = 1;
+-static int hystart_detect = HYSTART_ACK_TRAIN | HYSTART_DELAY;
+-static int hystart_low_window = 16;
+-static int hystart_ack_delta_us = 2000;
+-
+-static const __u32 cube_rtt_scale = (bic_scale * 10);	/* 1024*c/rtt */
+-static const __u32 beta_scale = 8*(BICTCP_BETA_SCALE+beta) / 3
+-				/ (BICTCP_BETA_SCALE - beta);
+-/* calculate the "K" for (wmax-cwnd) = c/rtt * K^3
+- *  so K = cubic_root( (wmax-cwnd)*rtt/c )
+- * the unit of K is bictcp_HZ=2^10, not HZ
+- *
+- *  c = bic_scale >> 10
+- *  rtt = 100ms
+- *
+- * the following code has been designed and tested for
+- * cwnd < 1 million packets
+- * RTT < 100 seconds
+- * HZ < 1,000,00  (corresponding to 10 nano-second)
+- */
+-
+-/* 1/c * 2^2*bictcp_HZ * srtt, 2^40 */
+-static const __u64 cube_factor = (__u64)(1ull << (10+3*BICTCP_HZ))
+-				/ (bic_scale * 10);
+-
+-/* BIC TCP Parameters */
+-struct bictcp {
+-	__u32	cnt;		/* increase cwnd by 1 after ACKs */
+-	__u32	last_max_cwnd;	/* last maximum snd_cwnd */
+-	__u32	last_cwnd;	/* the last snd_cwnd */
+-	__u32	last_time;	/* time when updated last_cwnd */
+-	__u32	bic_origin_point;/* origin point of bic function */
+-	__u32	bic_K;		/* time to origin point
+-				   from the beginning of the current epoch */
+-	__u32	delay_min;	/* min delay (usec) */
+-	__u32	epoch_start;	/* beginning of an epoch */
+-	__u32	ack_cnt;	/* number of acks */
+-	__u32	tcp_cwnd;	/* estimated tcp cwnd */
+-	__u16	unused;
+-	__u8	sample_cnt;	/* number of samples to decide curr_rtt */
+-	__u8	found;		/* the exit point is found? */
+-	__u32	round_start;	/* beginning of each round */
+-	__u32	end_seq;	/* end_seq of the round */
+-	__u32	last_ack;	/* last time when the ACK spacing is close */
+-	__u32	curr_rtt;	/* the minimum rtt of current round */
+-};
+-
+-static inline void bictcp_reset(struct bictcp *ca)
+-{
+-	ca->cnt = 0;
+-	ca->last_max_cwnd = 0;
+-	ca->last_cwnd = 0;
+-	ca->last_time = 0;
+-	ca->bic_origin_point = 0;
+-	ca->bic_K = 0;
+-	ca->delay_min = 0;
+-	ca->epoch_start = 0;
+-	ca->ack_cnt = 0;
+-	ca->tcp_cwnd = 0;
+-	ca->found = 0;
+-}
+-
+-extern unsigned long CONFIG_HZ __kconfig;
+-#define HZ CONFIG_HZ
+-#define USEC_PER_MSEC	1000UL
+-#define USEC_PER_SEC	1000000UL
+-#define USEC_PER_JIFFY	(USEC_PER_SEC / HZ)
+-
+-static __always_inline __u64 div64_u64(__u64 dividend, __u64 divisor)
+-{
+-	return dividend / divisor;
+-}
+-
+-#define div64_ul div64_u64
+-
+-#define BITS_PER_U64 (sizeof(__u64) * 8)
+-static __always_inline int fls64(__u64 x)
+-{
+-	int num = BITS_PER_U64 - 1;
+-
+-	if (x == 0)
+-		return 0;
+-
+-	if (!(x & (~0ull << (BITS_PER_U64-32)))) {
+-		num -= 32;
+-		x <<= 32;
+-	}
+-	if (!(x & (~0ull << (BITS_PER_U64-16)))) {
+-		num -= 16;
+-		x <<= 16;
+-	}
+-	if (!(x & (~0ull << (BITS_PER_U64-8)))) {
+-		num -= 8;
+-		x <<= 8;
+-	}
+-	if (!(x & (~0ull << (BITS_PER_U64-4)))) {
+-		num -= 4;
+-		x <<= 4;
+-	}
+-	if (!(x & (~0ull << (BITS_PER_U64-2)))) {
+-		num -= 2;
+-		x <<= 2;
+-	}
+-	if (!(x & (~0ull << (BITS_PER_U64-1))))
+-		num -= 1;
+-
+-	return num + 1;
+-}
+-
+-static __always_inline __u32 bictcp_clock_us(const struct sock *sk)
+-{
+-	return tcp_sk(sk)->tcp_mstamp;
+-}
+-
+-static __always_inline void bictcp_hystart_reset(struct sock *sk)
+-{
+-	struct tcp_sock *tp = tcp_sk(sk);
+-	struct bictcp *ca = inet_csk_ca(sk);
+-
+-	ca->round_start = ca->last_ack = bictcp_clock_us(sk);
+-	ca->end_seq = tp->snd_nxt;
+-	ca->curr_rtt = ~0U;
+-	ca->sample_cnt = 0;
+-}
+-
+-/* "struct_ops/" prefix is not a requirement
+- * It will be recognized as BPF_PROG_TYPE_STRUCT_OPS
+- * as long as it is used in one of the func ptr
+- * under SEC(".struct_ops").
+- */
+-SEC("struct_ops/bpf_cubic_init")
+-void BPF_PROG(bpf_cubic_init, struct sock *sk)
+-{
+-	struct bictcp *ca = inet_csk_ca(sk);
+-
+-	bictcp_reset(ca);
+-
+-	if (hystart)
+-		bictcp_hystart_reset(sk);
+-
+-	if (!hystart && initial_ssthresh)
+-		tcp_sk(sk)->snd_ssthresh = initial_ssthresh;
+-}
+-
+-/* No prefix in SEC will also work.
+- * The remaining tcp-cubic functions have an easier way.
+- */
+-SEC("no-sec-prefix-bictcp_cwnd_event")
+-void BPF_PROG(bpf_cubic_cwnd_event, struct sock *sk, enum tcp_ca_event event)
+-{
+-	if (event == CA_EVENT_TX_START) {
+-		struct bictcp *ca = inet_csk_ca(sk);
+-		__u32 now = tcp_jiffies32;
+-		__s32 delta;
+-
+-		delta = now - tcp_sk(sk)->lsndtime;
+-
+-		/* We were application limited (idle) for a while.
+-		 * Shift epoch_start to keep cwnd growth to cubic curve.
+-		 */
+-		if (ca->epoch_start && delta > 0) {
+-			ca->epoch_start += delta;
+-			if (after(ca->epoch_start, now))
+-				ca->epoch_start = now;
+-		}
+-		return;
+-	}
+-}
+-
+-/*
+- * cbrt(x) MSB values for x MSB values in [0..63].
+- * Precomputed then refined by hand - Willy Tarreau
+- *
+- * For x in [0..63],
+- *   v = cbrt(x << 18) - 1
+- *   cbrt(x) = (v[x] + 10) >> 6
+- */
+-static const __u8 v[] = {
+-	/* 0x00 */    0,   54,   54,   54,  118,  118,  118,  118,
+-	/* 0x08 */  123,  129,  134,  138,  143,  147,  151,  156,
+-	/* 0x10 */  157,  161,  164,  168,  170,  173,  176,  179,
+-	/* 0x18 */  181,  185,  187,  190,  192,  194,  197,  199,
+-	/* 0x20 */  200,  202,  204,  206,  209,  211,  213,  215,
+-	/* 0x28 */  217,  219,  221,  222,  224,  225,  227,  229,
+-	/* 0x30 */  231,  232,  234,  236,  237,  239,  240,  242,
+-	/* 0x38 */  244,  245,  246,  248,  250,  251,  252,  254,
+-};
+-
+-/* calculate the cubic root of x using a table lookup followed by one
+- * Newton-Raphson iteration.
+- * Avg err ~= 0.195%
+- */
+-static __always_inline __u32 cubic_root(__u64 a)
+-{
+-	__u32 x, b, shift;
+-
+-	if (a < 64) {
+-		/* a in [0..63] */
+-		return ((__u32)v[(__u32)a] + 35) >> 6;
+-	}
+-
+-	b = fls64(a);
+-	b = ((b * 84) >> 8) - 1;
+-	shift = (a >> (b * 3));
+-
+-	/* it is needed for verifier's bound check on v */
+-	if (shift >= 64)
+-		return 0;
+-
+-	x = ((__u32)(((__u32)v[shift] + 10) << b)) >> 6;
+-
+-	/*
+-	 * Newton-Raphson iteration
+-	 *                         2
+-	 * x    = ( 2 * x  +  a / x  ) / 3
+-	 *  k+1          k         k
+-	 */
+-	x = (2 * x + (__u32)div64_u64(a, (__u64)x * (__u64)(x - 1)));
+-	x = ((x * 341) >> 10);
+-	return x;
+-}
+-
+-/*
+- * Compute congestion window to use.
+- */
+-static __always_inline void bictcp_update(struct bictcp *ca, __u32 cwnd,
+-					  __u32 acked)
+-{
+-	__u32 delta, bic_target, max_cnt;
+-	__u64 offs, t;
+-
+-	ca->ack_cnt += acked;	/* count the number of ACKed packets */
+-
+-	if (ca->last_cwnd == cwnd &&
+-	    (__s32)(tcp_jiffies32 - ca->last_time) <= HZ / 32)
+-		return;
+-
+-	/* The CUBIC function can update ca->cnt at most once per jiffy.
+-	 * On all cwnd reduction events, ca->epoch_start is set to 0,
+-	 * which will force a recalculation of ca->cnt.
+-	 */
+-	if (ca->epoch_start && tcp_jiffies32 == ca->last_time)
+-		goto tcp_friendliness;
+-
+-	ca->last_cwnd = cwnd;
+-	ca->last_time = tcp_jiffies32;
+-
+-	if (ca->epoch_start == 0) {
+-		ca->epoch_start = tcp_jiffies32;	/* record beginning */
+-		ca->ack_cnt = acked;			/* start counting */
+-		ca->tcp_cwnd = cwnd;			/* syn with cubic */
+-
+-		if (ca->last_max_cwnd <= cwnd) {
+-			ca->bic_K = 0;
+-			ca->bic_origin_point = cwnd;
+-		} else {
+-			/* Compute new K based on
+-			 * (wmax-cwnd) * (srtt>>3 / HZ) / c * 2^(3*bictcp_HZ)
+-			 */
+-			ca->bic_K = cubic_root(cube_factor
+-					       * (ca->last_max_cwnd - cwnd));
+-			ca->bic_origin_point = ca->last_max_cwnd;
+-		}
+-	}
+-
+-	/* cubic function - calc*/
+-	/* calculate c * time^3 / rtt,
+-	 *  while considering overflow in calculation of time^3
+-	 * (so time^3 is done by using 64 bit)
+-	 * and without the support of division of 64bit numbers
+-	 * (so all divisions are done by using 32 bit)
+-	 *  also NOTE the unit of those veriables
+-	 *	  time  = (t - K) / 2^bictcp_HZ
+-	 *	  c = bic_scale >> 10
+-	 * rtt  = (srtt >> 3) / HZ
+-	 * !!! The following code does not have overflow problems,
+-	 * if the cwnd < 1 million packets !!!
+-	 */
+-
+-	t = (__s32)(tcp_jiffies32 - ca->epoch_start) * USEC_PER_JIFFY;
+-	t += ca->delay_min;
+-	/* change the unit from usec to bictcp_HZ */
+-	t <<= BICTCP_HZ;
+-	t /= USEC_PER_SEC;
+-
+-	if (t < ca->bic_K)		/* t - K */
+-		offs = ca->bic_K - t;
+-	else
+-		offs = t - ca->bic_K;
+-
+-	/* c/rtt * (t-K)^3 */
+-	delta = (cube_rtt_scale * offs * offs * offs) >> (10+3*BICTCP_HZ);
+-	if (t < ca->bic_K)                            /* below origin*/
+-		bic_target = ca->bic_origin_point - delta;
+-	else                                          /* above origin*/
+-		bic_target = ca->bic_origin_point + delta;
+-
+-	/* cubic function - calc bictcp_cnt*/
+-	if (bic_target > cwnd) {
+-		ca->cnt = cwnd / (bic_target - cwnd);
+-	} else {
+-		ca->cnt = 100 * cwnd;              /* very small increment*/
+-	}
+-
+-	/*
+-	 * The initial growth of cubic function may be too conservative
+-	 * when the available bandwidth is still unknown.
+-	 */
+-	if (ca->last_max_cwnd == 0 && ca->cnt > 20)
+-		ca->cnt = 20;	/* increase cwnd 5% per RTT */
+-
+-tcp_friendliness:
+-	/* TCP Friendly */
+-	if (tcp_friendliness) {
+-		__u32 scale = beta_scale;
+-		__u32 n;
+-
+-		/* update tcp cwnd */
+-		delta = (cwnd * scale) >> 3;
+-		if (ca->ack_cnt > delta && delta) {
+-			n = ca->ack_cnt / delta;
+-			ca->ack_cnt -= n * delta;
+-			ca->tcp_cwnd += n;
+-		}
+-
+-		if (ca->tcp_cwnd > cwnd) {	/* if bic is slower than tcp */
+-			delta = ca->tcp_cwnd - cwnd;
+-			max_cnt = cwnd / delta;
+-			if (ca->cnt > max_cnt)
+-				ca->cnt = max_cnt;
+-		}
+-	}
+-
+-	/* The maximum rate of cwnd increase CUBIC allows is 1 packet per
+-	 * 2 packets ACKed, meaning cwnd grows at 1.5x per RTT.
+-	 */
+-	ca->cnt = max(ca->cnt, 2U);
+-}
+-
+-/* Or simply use the BPF_STRUCT_OPS to avoid the SEC boiler plate. */
+-void BPF_STRUCT_OPS(bpf_cubic_cong_avoid, struct sock *sk, __u32 ack, __u32 acked)
+-{
+-	struct tcp_sock *tp = tcp_sk(sk);
+-	struct bictcp *ca = inet_csk_ca(sk);
+-
+-	if (!tcp_is_cwnd_limited(sk))
+-		return;
+-
+-	if (tcp_in_slow_start(tp)) {
+-		if (hystart && after(ack, ca->end_seq))
+-			bictcp_hystart_reset(sk);
+-		acked = tcp_slow_start(tp, acked);
+-		if (!acked)
+-			return;
+-	}
+-	bictcp_update(ca, tp->snd_cwnd, acked);
+-	tcp_cong_avoid_ai(tp, ca->cnt, acked);
+-}
+-
+-__u32 BPF_STRUCT_OPS(bpf_cubic_recalc_ssthresh, struct sock *sk)
+-{
+-	const struct tcp_sock *tp = tcp_sk(sk);
+-	struct bictcp *ca = inet_csk_ca(sk);
+-
+-	ca->epoch_start = 0;	/* end of epoch */
+-
+-	/* Wmax and fast convergence */
+-	if (tp->snd_cwnd < ca->last_max_cwnd && fast_convergence)
+-		ca->last_max_cwnd = (tp->snd_cwnd * (BICTCP_BETA_SCALE + beta))
+-			/ (2 * BICTCP_BETA_SCALE);
+-	else
+-		ca->last_max_cwnd = tp->snd_cwnd;
+-
+-	return max((tp->snd_cwnd * beta) / BICTCP_BETA_SCALE, 2U);
+-}
+-
+-void BPF_STRUCT_OPS(bpf_cubic_state, struct sock *sk, __u8 new_state)
+-{
+-	if (new_state == TCP_CA_Loss) {
+-		bictcp_reset(inet_csk_ca(sk));
+-		bictcp_hystart_reset(sk);
+-	}
+-}
+-
+-#define GSO_MAX_SIZE		65536
+-
+-/* Account for TSO/GRO delays.
+- * Otherwise short RTT flows could get too small ssthresh, since during
+- * slow start we begin with small TSO packets and ca->delay_min would
+- * not account for long aggregation delay when TSO packets get bigger.
+- * Ideally even with a very small RTT we would like to have at least one
+- * TSO packet being sent and received by GRO, and another one in qdisc layer.
+- * We apply another 100% factor because @rate is doubled at this point.
+- * We cap the cushion to 1ms.
+- */
+-static __always_inline __u32 hystart_ack_delay(struct sock *sk)
+-{
+-	unsigned long rate;
+-
+-	rate = sk->sk_pacing_rate;
+-	if (!rate)
+-		return 0;
+-	return min((__u64)USEC_PER_MSEC,
+-		   div64_ul((__u64)GSO_MAX_SIZE * 4 * USEC_PER_SEC, rate));
+-}
+-
+-static __always_inline void hystart_update(struct sock *sk, __u32 delay)
+-{
+-	struct tcp_sock *tp = tcp_sk(sk);
+-	struct bictcp *ca = inet_csk_ca(sk);
+-	__u32 threshold;
+-
+-	if (hystart_detect & HYSTART_ACK_TRAIN) {
+-		__u32 now = bictcp_clock_us(sk);
+-
+-		/* first detection parameter - ack-train detection */
+-		if ((__s32)(now - ca->last_ack) <= hystart_ack_delta_us) {
+-			ca->last_ack = now;
+-
+-			threshold = ca->delay_min + hystart_ack_delay(sk);
+-
+-			/* Hystart ack train triggers if we get ack past
+-			 * ca->delay_min/2.
+-			 * Pacing might have delayed packets up to RTT/2
+-			 * during slow start.
+-			 */
+-			if (sk->sk_pacing_status == SK_PACING_NONE)
+-				threshold >>= 1;
+-
+-			if ((__s32)(now - ca->round_start) > threshold) {
+-				ca->found = 1;
+-				tp->snd_ssthresh = tp->snd_cwnd;
+-			}
+-		}
+-	}
+-
+-	if (hystart_detect & HYSTART_DELAY) {
+-		/* obtain the minimum delay of more than sampling packets */
+-		if (ca->curr_rtt > delay)
+-			ca->curr_rtt = delay;
+-		if (ca->sample_cnt < HYSTART_MIN_SAMPLES) {
+-			ca->sample_cnt++;
+-		} else {
+-			if (ca->curr_rtt > ca->delay_min +
+-			    HYSTART_DELAY_THRESH(ca->delay_min >> 3)) {
+-				ca->found = 1;
+-				tp->snd_ssthresh = tp->snd_cwnd;
+-			}
+-		}
+-	}
+-}
+-
+-void BPF_STRUCT_OPS(bpf_cubic_acked, struct sock *sk,
+-		    const struct ack_sample *sample)
+-{
+-	const struct tcp_sock *tp = tcp_sk(sk);
+-	struct bictcp *ca = inet_csk_ca(sk);
+-	__u32 delay;
+-
+-	/* Some calls are for duplicates without timetamps */
+-	if (sample->rtt_us < 0)
+-		return;
+-
+-	/* Discard delay samples right after fast recovery */
+-	if (ca->epoch_start && (__s32)(tcp_jiffies32 - ca->epoch_start) < HZ)
+-		return;
+-
+-	delay = sample->rtt_us;
+-	if (delay == 0)
+-		delay = 1;
+-
+-	/* first time call or link delay decreases */
+-	if (ca->delay_min == 0 || ca->delay_min > delay)
+-		ca->delay_min = delay;
+-
+-	/* hystart triggers when cwnd is larger than some threshold */
+-	if (!ca->found && tcp_in_slow_start(tp) && hystart &&
+-	    tp->snd_cwnd >= hystart_low_window)
+-		hystart_update(sk, delay);
+-}
+-
+-extern __u32 tcp_reno_undo_cwnd(struct sock *sk) __ksym;
+-
+-__u32 BPF_STRUCT_OPS(bpf_cubic_undo_cwnd, struct sock *sk)
+-{
+-	return tcp_reno_undo_cwnd(sk);
+-}
+-
+-SEC(".struct_ops")
+-struct tcp_congestion_ops cubic = {
+-	.init		= (void *)bpf_cubic_init,
+-	.ssthresh	= (void *)bpf_cubic_recalc_ssthresh,
+-	.cong_avoid	= (void *)bpf_cubic_cong_avoid,
+-	.set_state	= (void *)bpf_cubic_state,
+-	.undo_cwnd	= (void *)bpf_cubic_undo_cwnd,
+-	.cwnd_event	= (void *)bpf_cubic_cwnd_event,
+-	.pkts_acked     = (void *)bpf_cubic_acked,
+-	.name		= "bpf_cubic",
+-};
+diff --git a/tools/testing/selftests/bpf/progs/bpf_dctcp.c b/tools/testing/selftests/bpf/progs/bpf_dctcp.c
+deleted file mode 100644
+index fd42247da8b4..000000000000
+--- a/tools/testing/selftests/bpf/progs/bpf_dctcp.c
++++ /dev/null
+@@ -1,224 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0
+-/* Copyright (c) 2019 Facebook */
+-
+-/* WARNING: This implemenation is not necessarily the same
+- * as the tcp_dctcp.c.  The purpose is mainly for testing
+- * the kernel BPF logic.
+- */
+-
+-#include <stddef.h>
+-#include <linux/bpf.h>
+-#include <linux/types.h>
+-#include <linux/stddef.h>
+-#include <linux/tcp.h>
+-#include <bpf/bpf_helpers.h>
+-#include <bpf/bpf_tracing.h>
+-#include "bpf_tcp_helpers.h"
+-
+-char _license[] SEC("license") = "GPL";
+-
+-int stg_result = 0;
+-
+-struct {
+-	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+-	__uint(map_flags, BPF_F_NO_PREALLOC);
+-	__type(key, int);
+-	__type(value, int);
+-} sk_stg_map SEC(".maps");
+-
+-#define DCTCP_MAX_ALPHA	1024U
+-
+-struct dctcp {
+-	__u32 old_delivered;
+-	__u32 old_delivered_ce;
+-	__u32 prior_rcv_nxt;
+-	__u32 dctcp_alpha;
+-	__u32 next_seq;
+-	__u32 ce_state;
+-	__u32 loss_cwnd;
+-};
+-
+-static unsigned int dctcp_shift_g = 4; /* g = 1/2^4 */
+-static unsigned int dctcp_alpha_on_init = DCTCP_MAX_ALPHA;
+-
+-static __always_inline void dctcp_reset(const struct tcp_sock *tp,
+-					struct dctcp *ca)
+-{
+-	ca->next_seq = tp->snd_nxt;
+-
+-	ca->old_delivered = tp->delivered;
+-	ca->old_delivered_ce = tp->delivered_ce;
+-}
+-
+-SEC("struct_ops/dctcp_init")
+-void BPF_PROG(dctcp_init, struct sock *sk)
+-{
+-	const struct tcp_sock *tp = tcp_sk(sk);
+-	struct dctcp *ca = inet_csk_ca(sk);
+-	int *stg;
+-
+-	ca->prior_rcv_nxt = tp->rcv_nxt;
+-	ca->dctcp_alpha = min(dctcp_alpha_on_init, DCTCP_MAX_ALPHA);
+-	ca->loss_cwnd = 0;
+-	ca->ce_state = 0;
+-
+-	stg = bpf_sk_storage_get(&sk_stg_map, (void *)tp, NULL, 0);
+-	if (stg) {
+-		stg_result = *stg;
+-		bpf_sk_storage_delete(&sk_stg_map, (void *)tp);
+-	}
+-	dctcp_reset(tp, ca);
+-}
+-
+-SEC("struct_ops/dctcp_ssthresh")
+-__u32 BPF_PROG(dctcp_ssthresh, struct sock *sk)
+-{
+-	struct dctcp *ca = inet_csk_ca(sk);
+-	struct tcp_sock *tp = tcp_sk(sk);
+-
+-	ca->loss_cwnd = tp->snd_cwnd;
+-	return max(tp->snd_cwnd - ((tp->snd_cwnd * ca->dctcp_alpha) >> 11U), 2U);
+-}
+-
+-SEC("struct_ops/dctcp_update_alpha")
+-void BPF_PROG(dctcp_update_alpha, struct sock *sk, __u32 flags)
+-{
+-	const struct tcp_sock *tp = tcp_sk(sk);
+-	struct dctcp *ca = inet_csk_ca(sk);
+-
+-	/* Expired RTT */
+-	if (!before(tp->snd_una, ca->next_seq)) {
+-		__u32 delivered_ce = tp->delivered_ce - ca->old_delivered_ce;
+-		__u32 alpha = ca->dctcp_alpha;
+-
+-		/* alpha = (1 - g) * alpha + g * F */
+-
+-		alpha -= min_not_zero(alpha, alpha >> dctcp_shift_g);
+-		if (delivered_ce) {
+-			__u32 delivered = tp->delivered - ca->old_delivered;
+-
+-			/* If dctcp_shift_g == 1, a 32bit value would overflow
+-			 * after 8 M packets.
+-			 */
+-			delivered_ce <<= (10 - dctcp_shift_g);
+-			delivered_ce /= max(1U, delivered);
+-
+-			alpha = min(alpha + delivered_ce, DCTCP_MAX_ALPHA);
+-		}
+-		ca->dctcp_alpha = alpha;
+-		dctcp_reset(tp, ca);
+-	}
+-}
+-
+-static __always_inline void dctcp_react_to_loss(struct sock *sk)
+-{
+-	struct dctcp *ca = inet_csk_ca(sk);
+-	struct tcp_sock *tp = tcp_sk(sk);
+-
+-	ca->loss_cwnd = tp->snd_cwnd;
+-	tp->snd_ssthresh = max(tp->snd_cwnd >> 1U, 2U);
+-}
+-
+-SEC("struct_ops/dctcp_state")
+-void BPF_PROG(dctcp_state, struct sock *sk, __u8 new_state)
+-{
+-	if (new_state == TCP_CA_Recovery &&
+-	    new_state != BPF_CORE_READ_BITFIELD(inet_csk(sk), icsk_ca_state))
+-		dctcp_react_to_loss(sk);
+-	/* We handle RTO in dctcp_cwnd_event to ensure that we perform only
+-	 * one loss-adjustment per RTT.
+-	 */
+-}
+-
+-static __always_inline void dctcp_ece_ack_cwr(struct sock *sk, __u32 ce_state)
+-{
+-	struct tcp_sock *tp = tcp_sk(sk);
+-
+-	if (ce_state == 1)
+-		tp->ecn_flags |= TCP_ECN_DEMAND_CWR;
+-	else
+-		tp->ecn_flags &= ~TCP_ECN_DEMAND_CWR;
+-}
+-
+-/* Minimal DCTP CE state machine:
+- *
+- * S:	0 <- last pkt was non-CE
+- *	1 <- last pkt was CE
+- */
+-static __always_inline
+-void dctcp_ece_ack_update(struct sock *sk, enum tcp_ca_event evt,
+-			  __u32 *prior_rcv_nxt, __u32 *ce_state)
+-{
+-	__u32 new_ce_state = (evt == CA_EVENT_ECN_IS_CE) ? 1 : 0;
+-
+-	if (*ce_state != new_ce_state) {
+-		/* CE state has changed, force an immediate ACK to
+-		 * reflect the new CE state. If an ACK was delayed,
+-		 * send that first to reflect the prior CE state.
+-		 */
+-		if (inet_csk(sk)->icsk_ack.pending & ICSK_ACK_TIMER) {
+-			dctcp_ece_ack_cwr(sk, *ce_state);
+-			bpf_tcp_send_ack(sk, *prior_rcv_nxt);
+-		}
+-		inet_csk(sk)->icsk_ack.pending |= ICSK_ACK_NOW;
+-	}
+-	*prior_rcv_nxt = tcp_sk(sk)->rcv_nxt;
+-	*ce_state = new_ce_state;
+-	dctcp_ece_ack_cwr(sk, new_ce_state);
+-}
+-
+-SEC("struct_ops/dctcp_cwnd_event")
+-void BPF_PROG(dctcp_cwnd_event, struct sock *sk, enum tcp_ca_event ev)
+-{
+-	struct dctcp *ca = inet_csk_ca(sk);
+-
+-	switch (ev) {
+-	case CA_EVENT_ECN_IS_CE:
+-	case CA_EVENT_ECN_NO_CE:
+-		dctcp_ece_ack_update(sk, ev, &ca->prior_rcv_nxt, &ca->ce_state);
+-		break;
+-	case CA_EVENT_LOSS:
+-		dctcp_react_to_loss(sk);
+-		break;
+-	default:
+-		/* Don't care for the rest. */
+-		break;
+-	}
+-}
+-
+-SEC("struct_ops/dctcp_cwnd_undo")
+-__u32 BPF_PROG(dctcp_cwnd_undo, struct sock *sk)
+-{
+-	const struct dctcp *ca = inet_csk_ca(sk);
+-
+-	return max(tcp_sk(sk)->snd_cwnd, ca->loss_cwnd);
+-}
+-
+-extern void tcp_reno_cong_avoid(struct sock *sk, __u32 ack, __u32 acked) __ksym;
+-
+-SEC("struct_ops/dctcp_reno_cong_avoid")
+-void BPF_PROG(dctcp_cong_avoid, struct sock *sk, __u32 ack, __u32 acked)
+-{
+-	tcp_reno_cong_avoid(sk, ack, acked);
+-}
+-
+-SEC(".struct_ops")
+-struct tcp_congestion_ops dctcp_nouse = {
+-	.init		= (void *)dctcp_init,
+-	.set_state	= (void *)dctcp_state,
+-	.flags		= TCP_CONG_NEEDS_ECN,
+-	.name		= "bpf_dctcp_nouse",
+-};
+-
+-SEC(".struct_ops")
+-struct tcp_congestion_ops dctcp = {
+-	.init		= (void *)dctcp_init,
+-	.in_ack_event   = (void *)dctcp_update_alpha,
+-	.cwnd_event	= (void *)dctcp_cwnd_event,
+-	.ssthresh	= (void *)dctcp_ssthresh,
+-	.cong_avoid	= (void *)dctcp_cong_avoid,
+-	.undo_cwnd	= (void *)dctcp_cwnd_undo,
+-	.set_state	= (void *)dctcp_state,
+-	.flags		= TCP_CONG_NEEDS_ECN,
+-	.name		= "bpf_dctcp",
+-};
+diff --git a/tools/testing/selftests/bpf/progs/kfunc_call_test.c b/tools/testing/selftests/bpf/progs/kfunc_call_test.c
+deleted file mode 100644
+index 470f8723e463..000000000000
+--- a/tools/testing/selftests/bpf/progs/kfunc_call_test.c
++++ /dev/null
+@@ -1,47 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0
+-/* Copyright (c) 2021 Facebook */
+-#include <linux/bpf.h>
+-#include <bpf/bpf_helpers.h>
+-#include "bpf_tcp_helpers.h"
+-
+-extern int bpf_kfunc_call_test2(struct sock *sk, __u32 a, __u32 b) __ksym;
+-extern __u64 bpf_kfunc_call_test1(struct sock *sk, __u32 a, __u64 b,
+-				  __u32 c, __u64 d) __ksym;
+-
+-SEC("classifier")
+-int kfunc_call_test2(struct __sk_buff *skb)
+-{
+-	struct bpf_sock *sk = skb->sk;
+-
+-	if (!sk)
+-		return -1;
+-
+-	sk = bpf_sk_fullsock(sk);
+-	if (!sk)
+-		return -1;
+-
+-	return bpf_kfunc_call_test2((struct sock *)sk, 1, 2);
+-}
+-
+-SEC("classifier")
+-int kfunc_call_test1(struct __sk_buff *skb)
+-{
+-	struct bpf_sock *sk = skb->sk;
+-	__u64 a = 1ULL << 32;
+-	__u32 ret;
+-
+-	if (!sk)
+-		return -1;
+-
+-	sk = bpf_sk_fullsock(sk);
+-	if (!sk)
+-		return -1;
+-
+-	a = bpf_kfunc_call_test1((struct sock *)sk, 1, a | 2, 3, a | 4);
+-	ret = a >> 32;   /* ret should be 2 */
+-	ret += (__u32)a; /* ret should be 12 */
+-
+-	return ret;
+-}
+-
+-char _license[] SEC("license") = "GPL";
+diff --git a/tools/testing/selftests/bpf/progs/kfunc_call_test_subprog.c b/tools/testing/selftests/bpf/progs/kfunc_call_test_subprog.c
+deleted file mode 100644
+index b2dcb7d9cb03..000000000000
+--- a/tools/testing/selftests/bpf/progs/kfunc_call_test_subprog.c
++++ /dev/null
+@@ -1,42 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0
+-/* Copyright (c) 2021 Facebook */
+-#include <linux/bpf.h>
+-#include <bpf/bpf_helpers.h>
+-#include "bpf_tcp_helpers.h"
+-
+-extern const int bpf_prog_active __ksym;
+-extern __u64 bpf_kfunc_call_test1(struct sock *sk, __u32 a, __u64 b,
+-				  __u32 c, __u64 d) __ksym;
+-extern struct sock *bpf_kfunc_call_test3(struct sock *sk) __ksym;
+-int active_res = -1;
+-int sk_state = -1;
+-
+-int __noinline f1(struct __sk_buff *skb)
+-{
+-	struct bpf_sock *sk = skb->sk;
+-	int *active;
+-
+-	if (!sk)
+-		return -1;
+-
+-	sk = bpf_sk_fullsock(sk);
+-	if (!sk)
+-		return -1;
+-
+-	active = (int *)bpf_per_cpu_ptr(&bpf_prog_active,
+-					bpf_get_smp_processor_id());
+-	if (active)
+-		active_res = *active;
+-
+-	sk_state = bpf_kfunc_call_test3((struct sock *)sk)->__sk_common.skc_state;
+-
+-	return (__u32)bpf_kfunc_call_test1((struct sock *)sk, 1, 2, 3, 4);
+-}
+-
+-SEC("classifier")
+-int kfunc_call_test1(struct __sk_buff *skb)
+-{
+-	return f1(skb);
+-}
+-
+-char _license[] SEC("license") = "GPL";
+diff --git a/tools/testing/selftests/bpf/progs/linked_funcs1.c b/tools/testing/selftests/bpf/progs/linked_funcs1.c
+deleted file mode 100644
+index b964ec1390c2..000000000000
+--- a/tools/testing/selftests/bpf/progs/linked_funcs1.c
++++ /dev/null
+@@ -1,73 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0
+-/* Copyright (c) 2021 Facebook */
+-
+-#include "vmlinux.h"
+-#include <bpf/bpf_helpers.h>
+-#include <bpf/bpf_tracing.h>
+-
+-/* weak and shared between two files */
+-const volatile int my_tid __weak;
+-long syscall_id __weak;
+-
+-int output_val1;
+-int output_ctx1;
+-int output_weak1;
+-
+-/* same "subprog" name in all files, but it's ok because they all are static */
+-static __noinline int subprog(int x)
+-{
+-	/* but different formula */
+-	return x * 1;
+-}
+-
+-/* Global functions can't be void */
+-int set_output_val1(int x)
+-{
+-	output_val1 = x + subprog(x);
+-	return x;
+-}
+-
+-/* This function can't be verified as global, as it assumes raw_tp/sys_enter
+- * context and accesses syscall id (second argument). So we mark it as
+- * __hidden, so that libbpf will mark it as static in the final object file,
+- * right before verifying it in the kernel.
+- *
+- * But we don't mark it as __hidden here, rather at extern site. __hidden is
+- * "contaminating" visibility, so it will get propagated from either extern or
+- * actual definition (including from the losing __weak definition).
+- */
+-void set_output_ctx1(__u64 *ctx)
+-{
+-	output_ctx1 = ctx[1]; /* long id, same as in BPF_PROG below */
+-}
+-
+-/* this weak instance should win because it's the first one */
+-__weak int set_output_weak(int x)
+-{
+-	output_weak1 = x;
+-	return x;
+-}
+-
+-extern int set_output_val2(int x);
+-
+-/* here we'll force set_output_ctx2() to be __hidden in the final obj file */
+-__hidden extern void set_output_ctx2(__u64 *ctx);
+-
+-SEC("raw_tp/sys_enter")
+-int BPF_PROG(handler1, struct pt_regs *regs, long id)
+-{
+-	if (my_tid != (u32)bpf_get_current_pid_tgid() || id != syscall_id)
+-		return 0;
+-
+-	set_output_val2(1000);
+-	set_output_ctx2(ctx); /* ctx definition is hidden in BPF_PROG macro */
+-
+-	/* keep input value the same across both files to avoid dependency on
+-	 * handler call order; differentiate by output_weak1 vs output_weak2.
+-	 */
+-	set_output_weak(42);
+-
+-	return 0;
+-}
+-
+-char LICENSE[] SEC("license") = "GPL";
+diff --git a/tools/testing/selftests/bpf/progs/linked_funcs2.c b/tools/testing/selftests/bpf/progs/linked_funcs2.c
+deleted file mode 100644
+index 575e958e60b7..000000000000
+--- a/tools/testing/selftests/bpf/progs/linked_funcs2.c
++++ /dev/null
+@@ -1,73 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0
+-/* Copyright (c) 2021 Facebook */
+-
+-#include "vmlinux.h"
+-#include <bpf/bpf_helpers.h>
+-#include <bpf/bpf_tracing.h>
+-
+-/* weak and shared between both files */
+-const volatile int my_tid __weak;
+-long syscall_id __weak;
+-
+-int output_val2;
+-int output_ctx2;
+-int output_weak2; /* should stay zero */
+-
+-/* same "subprog" name in all files, but it's ok because they all are static */
+-static __noinline int subprog(int x)
+-{
+-	/* but different formula */
+-	return x * 2;
+-}
+-
+-/* Global functions can't be void */
+-int set_output_val2(int x)
+-{
+-	output_val2 = 2 * x + 2 * subprog(x);
+-	return 2 * x;
+-}
+-
+-/* This function can't be verified as global, as it assumes raw_tp/sys_enter
+- * context and accesses syscall id (second argument). So we mark it as
+- * __hidden, so that libbpf will mark it as static in the final object file,
+- * right before verifying it in the kernel.
+- *
+- * But we don't mark it as __hidden here, rather at extern site. __hidden is
+- * "contaminating" visibility, so it will get propagated from either extern or
+- * actual definition (including from the losing __weak definition).
+- */
+-void set_output_ctx2(__u64 *ctx)
+-{
+-	output_ctx2 = ctx[1]; /* long id, same as in BPF_PROG below */
+-}
+-
+-/* this weak instance should lose, because it will be processed second */
+-__weak int set_output_weak(int x)
+-{
+-	output_weak2 = x;
+-	return 2 * x;
+-}
+-
+-extern int set_output_val1(int x);
+-
+-/* here we'll force set_output_ctx1() to be __hidden in the final obj file */
+-__hidden extern void set_output_ctx1(__u64 *ctx);
+-
+-SEC("raw_tp/sys_enter")
+-int BPF_PROG(handler2, struct pt_regs *regs, long id)
+-{
+-	if (my_tid != (u32)bpf_get_current_pid_tgid() || id != syscall_id)
+-		return 0;
+-
+-	set_output_val1(2000);
+-	set_output_ctx1(ctx); /* ctx definition is hidden in BPF_PROG macro */
+-
+-	/* keep input value the same across both files to avoid dependency on
+-	 * handler call order; differentiate by output_weak1 vs output_weak2.
+-	 */
+-	set_output_weak(42);
+-
+-	return 0;
+-}
+-
+-char LICENSE[] SEC("license") = "GPL";
+diff --git a/tools/testing/selftests/bpf/progs/linked_maps2.c b/tools/testing/selftests/bpf/progs/linked_maps2.c
+deleted file mode 100644
+index 0693687474ed..000000000000
+--- a/tools/testing/selftests/bpf/progs/linked_maps2.c
++++ /dev/null
+@@ -1,76 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0
+-/* Copyright (c) 2021 Facebook */
+-
+-#include "vmlinux.h"
+-#include <bpf/bpf_helpers.h>
+-#include <bpf/bpf_tracing.h>
+-
+-/* modifiers and typedefs are ignored when comparing key/value types */
+-typedef struct my_key { long x; } key_type;
+-typedef struct my_value { long x; } value_type;
+-
+-extern struct {
+-	__uint(max_entries, 16);
+-	__type(key, key_type);
+-	__type(value, value_type);
+-	__uint(type, BPF_MAP_TYPE_HASH);
+-} map1 SEC(".maps");
+-
+-struct {
+-	__uint(type, BPF_MAP_TYPE_ARRAY);
+-	__type(key, int);
+-	__type(value, int);
+-	__uint(max_entries, 8);
+-} map2 SEC(".maps");
+-
+-/* this definition will lose, but it has to exactly match the winner */
+-struct {
+-	__uint(type, BPF_MAP_TYPE_ARRAY);
+-	__type(key, int);
+-	__type(value, int);
+-	__uint(max_entries, 16);
+-} map_weak __weak SEC(".maps");
+-
+-int output_first2;
+-int output_second2;
+-int output_weak2;
+-
+-SEC("raw_tp/sys_enter")
+-int BPF_PROG(handler_enter2)
+-{
+-	/* update values with key = 2 */
+-	int key = 2, val = 2;
+-	key_type key_struct = { .x = 2 };
+-	value_type val_struct = { .x = 2000 };
+-
+-	bpf_map_update_elem(&map1, &key_struct, &val_struct, 0);
+-	bpf_map_update_elem(&map2, &key, &val, 0);
+-	bpf_map_update_elem(&map_weak, &key, &val, 0);
+-
+-	return 0;
+-}
+-
+-SEC("raw_tp/sys_exit")
+-int BPF_PROG(handler_exit2)
+-{
+-	/* lookup values with key = 1, set in another file */
+-	int key = 1, *val;
+-	key_type key_struct = { .x = 1 };
+-	value_type *value_struct;
+-
+-	value_struct = bpf_map_lookup_elem(&map1, &key_struct);
+-	if (value_struct)
+-		output_first2 = value_struct->x;
+-
+-	val = bpf_map_lookup_elem(&map2, &key);
+-	if (val)
+-		output_second2 = *val;
+-
+-	val = bpf_map_lookup_elem(&map_weak, &key);
+-	if (val)
+-		output_weak2 = *val;
+-
+-	return 0;
+-}
+-
+-char LICENSE[] SEC("license") = "GPL";
+diff --git a/tools/testing/selftests/bpf/progs/linked_vars1.c b/tools/testing/selftests/bpf/progs/linked_vars1.c
+deleted file mode 100644
+index ef9e9d0bb0ca..000000000000
+--- a/tools/testing/selftests/bpf/progs/linked_vars1.c
++++ /dev/null
+@@ -1,54 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0
+-/* Copyright (c) 2021 Facebook */
+-
+-#include "vmlinux.h"
+-#include <bpf/bpf_helpers.h>
+-#include <bpf/bpf_tracing.h>
+-
+-extern int LINUX_KERNEL_VERSION __kconfig;
+-/* this weak extern will be strict due to the other file's strong extern */
+-extern bool CONFIG_BPF_SYSCALL __kconfig __weak;
+-extern const void bpf_link_fops __ksym __weak;
+-
+-int input_bss1;
+-int input_data1 = 1;
+-const volatile int input_rodata1 = 11;
+-
+-int input_bss_weak __weak;
+-/* these two definitions should win */
+-int input_data_weak __weak = 10;
+-const volatile int input_rodata_weak __weak = 100;
+-
+-extern int input_bss2;
+-extern int input_data2;
+-extern const int input_rodata2;
+-
+-int output_bss1;
+-int output_data1;
+-int output_rodata1;
+-
+-long output_sink1;
+-
+-static __noinline int get_bss_res(void)
+-{
+-	/* just make sure all the relocations work against .text as well */
+-	return input_bss1 + input_bss2 + input_bss_weak;
+-}
+-
+-SEC("raw_tp/sys_enter")
+-int BPF_PROG(handler1)
+-{
+-	output_bss1 = get_bss_res();
+-	output_data1 = input_data1 + input_data2 + input_data_weak;
+-	output_rodata1 = input_rodata1 + input_rodata2 + input_rodata_weak;
+-
+-	/* make sure we actually use above special externs, otherwise compiler
+-	 * will optimize them out
+-	 */
+-	output_sink1 = LINUX_KERNEL_VERSION
+-		       + CONFIG_BPF_SYSCALL
+-		       + (long)&bpf_link_fops;
+-	return 0;
+-}
+-
+-char LICENSE[] SEC("license") = "GPL";
+diff --git a/tools/testing/selftests/bpf/progs/linked_vars2.c b/tools/testing/selftests/bpf/progs/linked_vars2.c
+deleted file mode 100644
+index e4f5bd388a3c..000000000000
+--- a/tools/testing/selftests/bpf/progs/linked_vars2.c
++++ /dev/null
+@@ -1,55 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0
+-/* Copyright (c) 2021 Facebook */
+-
+-#include "vmlinux.h"
+-#include <bpf/bpf_helpers.h>
+-#include <bpf/bpf_tracing.h>
+-
+-extern int LINUX_KERNEL_VERSION __kconfig;
+-/* when an extern is defined as both strong and weak, resulting symbol will be strong */
+-extern bool CONFIG_BPF_SYSCALL __kconfig;
+-extern const void __start_BTF __ksym;
+-
+-int input_bss2;
+-int input_data2 = 2;
+-const volatile int input_rodata2 = 22;
+-
+-int input_bss_weak __weak;
+-/* these two weak variables should lose */
+-int input_data_weak __weak = 20;
+-const volatile int input_rodata_weak __weak = 200;
+-
+-extern int input_bss1;
+-extern int input_data1;
+-extern const int input_rodata1;
+-
+-int output_bss2;
+-int output_data2;
+-int output_rodata2;
+-
+-int output_sink2;
+-
+-static __noinline int get_data_res(void)
+-{
+-	/* just make sure all the relocations work against .text as well */
+-	return input_data1 + input_data2 + input_data_weak;
+-}
+-
+-SEC("raw_tp/sys_enter")
+-int BPF_PROG(handler2)
+-{
+-	output_bss2 = input_bss1 + input_bss2 + input_bss_weak;
+-	output_data2 = get_data_res();
+-	output_rodata2 = input_rodata1 + input_rodata2 + input_rodata_weak;
+-
+-	/* make sure we actually use above special externs, otherwise compiler
+-	 * will optimize them out
+-	 */
+-	output_sink2 = LINUX_KERNEL_VERSION
+-		       + CONFIG_BPF_SYSCALL
+-		       + (long)&__start_BTF;
+-
+-	return 0;
+-}
+-
+-char LICENSE[] SEC("license") = "GPL";