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authorJan200101 <sentrycraft123@gmail.com>2021-09-23 19:55:36 +0200
committerJan200101 <sentrycraft123@gmail.com>2021-09-23 19:55:36 +0200
commit9fb6bf821ee9fc909ed3348cdab0d13d4621bd05 (patch)
tree8e11b5e2bffba325071cec5ac0b402da891dcdf7 /SOURCES/patch-5.14-redhat.patch
parentf79cd94d7370f65ca81d9897d1bfbb2f220c467a (diff)
downloadkernel-fsync-9fb6bf821ee9fc909ed3348cdab0d13d4621bd05.tar.gz
kernel-fsync-9fb6bf821ee9fc909ed3348cdab0d13d4621bd05.zip
kernel 5.14.7
Diffstat (limited to 'SOURCES/patch-5.14-redhat.patch')
-rw-r--r--SOURCES/patch-5.14-redhat.patch3142
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";
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 20:08:31 +0000