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kernel/patch-5.17-redhat.patch

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Documentation/admin-guide/kernel-parameters.txt | 9 +
Kconfig | 2 +
Kconfig.redhat | 17 +
Makefile | 12 +-
arch/arm/Kconfig | 4 +-
arch/arm64/Kconfig | 3 +-
arch/arm64/kernel/acpi.c | 4 +
arch/s390/include/asm/ipl.h | 1 +
arch/s390/kernel/ipl.c | 5 +
arch/s390/kernel/setup.c | 4 +
arch/x86/kernel/cpu/common.c | 1 +
arch/x86/kernel/setup.c | 70 ++-
crypto/rng.c | 73 ++-
drivers/acpi/apei/hest.c | 8 +
drivers/acpi/irq.c | 17 +-
drivers/acpi/scan.c | 9 +
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/message/fusion/mptsas.c | 10 +
drivers/message/fusion/mptspi.c | 11 +
drivers/net/ethernet/intel/e1000/e1000_main.c | 2 +
drivers/net/team/team.c | 2 +
drivers/net/wireguard/main.c | 7 +
drivers/nvme/host/core.c | 22 +-
drivers/nvme/host/multipath.c | 19 +-
drivers/nvme/host/nvme.h | 4 +
drivers/pci/pci-driver.c | 78 ++++
drivers/pci/quirks.c | 24 +
drivers/scsi/aacraid/linit.c | 2 +
drivers/scsi/be2iscsi/be_main.c | 2 +
drivers/scsi/hpsa.c | 4 +
drivers/scsi/lpfc/lpfc_ids.h | 14 +
drivers/scsi/megaraid/megaraid_sas_base.c | 4 +
drivers/scsi/mpt3sas/mpt3sas_scsih.c | 4 +
drivers/scsi/qla2xxx/qla_os.c | 6 +
drivers/scsi/qla4xxx/ql4_os.c | 2 +
drivers/usb/core/hub.c | 7 +
drivers/virtio/virtio_mem.c | 13 +
fs/ext4/super.c | 5 +
fs/xfs/xfs_super.c | 5 +
include/linux/efi.h | 22 +-
include/linux/kernel.h | 19 +
include/linux/lsm_hook_defs.h | 2 +
include/linux/lsm_hooks.h | 6 +
include/linux/mmzone.h | 4 +-
include/linux/module.h | 1 +
include/linux/panic.h | 19 +-
include/linux/pci.h | 16 +
include/linux/random.h | 7 +
include/linux/rh_kabi.h | 515 +++++++++++++++++++++
include/linux/rmi.h | 1 +
include/linux/security.h | 5 +
init/Kconfig | 2 +-
kernel/Makefile | 1 +
kernel/bpf/syscall.c | 18 +
kernel/module.c | 2 +
kernel/module_signing.c | 9 +-
kernel/panic.c | 14 +
kernel/rh_messages.c | 179 +++++++
kernel/sysctl.c | 5 +
mm/cma.c | 10 +
scripts/mod/modpost.c | 8 +
scripts/tags.sh | 2 +
security/integrity/platform_certs/load_uefi.c | 6 +-
security/lockdown/Kconfig | 13 +
security/lockdown/lockdown.c | 1 +
security/security.c | 6 +
tools/lib/subcmd/subcmd-util.h | 9 +-
77 files changed, 1748 insertions(+), 196 deletions(-)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index f5a27f067db9..f4dc42f2f82a 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -6000,6 +6000,15 @@
unknown_nmi_panic
[X86] Cause panic on unknown NMI.
+ unprivileged_bpf_disabled=
+ Format: { "0" | "1" | "2" }
+ Sets the initial value of
+ kernel.unprivileged_bpf_disabled sysctl knob.
+ 0 - unprivileged bpf() syscall access is enabled.
+ 1 - unprivileged bpf() syscall access is disabled permanently.
+ 2 - unprivileged bpf() syscall access is disabled.
+ Default value is 2.
+
usbcore.authorized_default=
[USB] Default USB device authorization:
(default -1 = authorized except for wireless USB,
diff --git a/Kconfig b/Kconfig
index 745bc773f567..f57ff40109d7 100644
--- a/Kconfig
+++ b/Kconfig
@@ -30,3 +30,5 @@ source "lib/Kconfig"
source "lib/Kconfig.debug"
source "Documentation/Kconfig"
+
+source "Kconfig.redhat"
diff --git a/Kconfig.redhat b/Kconfig.redhat
new file mode 100644
index 000000000000..effb81d04bfd
--- /dev/null
+++ b/Kconfig.redhat
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Red Hat specific options
+#
+
+menu "Red Hat options"
+
+config RHEL_DIFFERENCES
+ bool "Remove support for deprecated features"
+ help
+ Red Hat may choose to deprecate certain features in its kernels.
+ Enable this option to remove support for hardware that is no
+ longer supported.
+
+ Unless you want a restricted kernel, say N here.
+
+endmenu
diff --git a/Makefile b/Makefile
index 51e142f760f7..3abb272fb795 100644
--- a/Makefile
+++ b/Makefile
@@ -18,6 +18,10 @@ $(if $(filter __%, $(MAKECMDGOALS)), \
PHONY := __all
__all:
+# Set RHEL variables
+# Use this spot to avoid future merge conflicts
+include Makefile.rhelver
+
# We are using a recursive build, so we need to do a little thinking
# to get the ordering right.
#
@@ -1235,7 +1239,13 @@ define filechk_version.h
((c) > 255 ? 255 : (c)))'; \
echo \#define LINUX_VERSION_MAJOR $(VERSION); \
echo \#define LINUX_VERSION_PATCHLEVEL $(PATCHLEVEL); \
- echo \#define LINUX_VERSION_SUBLEVEL $(SUBLEVEL)
+ echo \#define LINUX_VERSION_SUBLEVEL $(SUBLEVEL); \
+ echo '#define RHEL_MAJOR $(RHEL_MAJOR)'; \
+ echo '#define RHEL_MINOR $(RHEL_MINOR)'; \
+ echo '#define RHEL_RELEASE_VERSION(a,b) (((a) << 8) + (b))'; \
+ echo '#define RHEL_RELEASE_CODE \
+ $(shell expr $(RHEL_MAJOR) \* 256 + $(RHEL_MINOR))'; \
+ echo '#define RHEL_RELEASE "$(RHEL_RELEASE)"'
endef
$(version_h): PATCHLEVEL := $(if $(PATCHLEVEL), $(PATCHLEVEL), 0)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 4c97cb40eebb..caf06cef3d2e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1479,9 +1479,9 @@ 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 09b885cc4db5..73fd512bd66f 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1109,7 +1109,7 @@ 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
@@ -1351,6 +1351,7 @@ 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/kernel/acpi.c b/arch/arm64/kernel/acpi.c
index e4dea8db6924..3f17c7b5bd78 100644
--- a/arch/arm64/kernel/acpi.c
+++ b/arch/arm64/kernel/acpi.c
@@ -41,7 +41,11 @@ int acpi_pci_disabled = 1; /* skip ACPI PCI scan and IRQ initialization */
EXPORT_SYMBOL(acpi_pci_disabled);
static bool param_acpi_off __initdata;
+#ifdef CONFIG_RHEL_DIFFERENCES
+static bool param_acpi_on __initdata = true;
+#else
static bool param_acpi_on __initdata;
+#endif
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 3f8ee257f9aa..3ab92feb6241 100644
--- a/arch/s390/include/asm/ipl.h
+++ b/arch/s390/include/asm/ipl.h
@@ -128,6 +128,7 @@ 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 5ad1dde23dc5..b6192d58eed3 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -2216,3 +2216,8 @@ 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 f2c25d113e7b..059fe82e020a 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 <linux/kmemleak.h>
@@ -963,6 +964,9 @@ 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/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 7b8382c11788..4aa07bcf45cf 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1316,6 +1316,7 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c)
cpu_detect(c);
get_cpu_vendor(c);
get_cpu_cap(c);
+ get_model_name(c); /* RHEL: get model name for unsupported check */
get_cpu_address_sizes(c);
setup_force_cpu_cap(X86_FEATURE_CPUID);
cpu_parse_early_param();
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index f7a132eb794d..2305f8353e49 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -20,6 +20,7 @@
#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>
@@ -51,6 +52,7 @@
#include <asm/unwind.h>
#include <asm/vsyscall.h>
#include <linux/vmalloc.h>
+#include <asm/intel-family.h>
/*
* max_low_pfn_mapped: highest directly mapped pfn < 4 GB
@@ -721,6 +723,51 @@ static void __init early_reserve_memory(void)
trim_snb_memory();
}
+#ifdef CONFIG_RHEL_DIFFERENCES
+
+static void rh_check_supported(void)
+{
+ bool guest;
+
+ guest = (x86_hyper_type != X86_HYPER_NATIVE || boot_cpu_has(X86_FEATURE_HYPERVISOR));
+
+ /* RHEL supports single cpu on guests only */
+ if (((boot_cpu_data.x86_max_cores * smp_num_siblings) == 1) &&
+ !guest && is_kdump_kernel()) {
+ pr_crit("Detected single cpu native boot.\n");
+ pr_crit("Important: In this kernel, single threaded, single CPU 64-bit physical systems are unsupported.");
+ }
+
+ /*
+ * If the RHEL kernel does not support this hardware, the kernel will
+ * attempt to boot, but no support is provided for this hardware
+ */
+ switch (boot_cpu_data.x86_vendor) {
+ case X86_VENDOR_AMD:
+ case X86_VENDOR_INTEL:
+ break;
+ default:
+ pr_crit("Detected processor %s %s\n",
+ boot_cpu_data.x86_vendor_id,
+ boot_cpu_data.x86_model_id);
+ mark_hardware_unmaintained("x86 processor", "%s %s", boot_cpu_data.x86_vendor_id,
+ boot_cpu_data.x86_model_id);
+ break;
+ }
+
+ /*
+ * Due to the complexity of x86 lapic & ioapic enumeration, and PCI IRQ
+ * routing, ACPI is required for x86. acpi=off is a valid debug kernel
+ * parameter, so just print out a loud warning in case something
+ * goes wrong (which is most of the time).
+ */
+ if (acpi_disabled && !guest)
+ pr_crit("ACPI has been disabled or is not available on this hardware. This may result in a single cpu boot, incorrect PCI IRQ routing, or boot failure.\n");
+}
+#else
+#define rh_check_supported()
+#endif
+
/*
* Dump out kernel offset information on panic.
*/
@@ -930,6 +977,13 @@ 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();
/*
@@ -1099,19 +1153,7 @@ 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();
@@ -1224,6 +1266,8 @@ void __init setup_arch(char **cmdline_p)
efi_apply_memmap_quirks();
#endif
+ rh_check_supported();
+
unwind_init();
}
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 0edc1ed47673..782e2f399af2 100644
--- a/drivers/acpi/apei/hest.c
+++ b/drivers/acpi/apei/hest.c
@@ -96,6 +96,14 @@ static 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 1331756d4cfc..4b5257f5e2c4 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1769,6 +1769,15 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
if (!acpi_match_device_ids(device, ignore_serial_bus_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/ata/libahci.c b/drivers/ata/libahci.c
index 0ed484e04fd6..a2e486bd14ef 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -690,6 +690,24 @@ 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 c59265146e9c..caa8458edde2 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"
@@ -5422,8 +5423,21 @@ 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 3404a91edf29..184dbb94710c 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -344,6 +344,7 @@
#include <linux/syscalls.h>
#include <linux/completion.h>
#include <linux/uuid.h>
+#include <linux/rcupdate.h>
#include <crypto/chacha.h>
#include <crypto/blake2s.h>
@@ -358,6 +359,11 @@
/* #define ADD_INTERRUPT_BENCH */
+/*
+ * Hook for external RNG.
+ */
+static const struct random_extrng __rcu *extrng;
+
/*
* If the entropy count falls under this number of bits, then we
* should wake up processes which are selecting or polling on write
@@ -486,6 +492,9 @@ 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
@@ -1775,6 +1784,13 @@ static __poll_t 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(const char __user *buffer, size_t count)
{
size_t bytes;
@@ -1879,7 +1895,58 @@ 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,
@@ -1890,6 +1957,7 @@ 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,
@@ -1898,9 +1966,31 @@ 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))
@@ -1916,6 +2006,18 @@ SYSCALL_DEFINE3(getrandom, char __user *, buf, size_t, count, unsigned int,
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;
@@ -2235,3 +2337,16 @@ 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 c02ff25dd477..d860f8eb9a81 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 7de3f5b6e8d0..95b1c35b347c 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>
@@ -851,40 +852,101 @@ 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 bf18128cf5de..e973c7816de8 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>
@@ -2165,6 +2166,16 @@ 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 = {
@@ -2198,6 +2209,11 @@ 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 */
@@ -2224,6 +2240,9 @@ 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 107dcf5938d6..225a9797e39d 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/dma-iommu.h>
#include <linux/kernel.h>
#include <linux/bits.h>
@@ -3124,6 +3125,27 @@ 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/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 4acd8f9a48e1..57b430c4d814 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -5320,6 +5320,11 @@ mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id)
ioc, MPI_SAS_OP_CLEAR_ALL_PERSISTENT);
}
+#ifdef CONFIG_RHEL_DIFFERENCES
+ add_taint(TAINT_SUPPORT_REMOVED, LOCKDEP_STILL_OK);
+ pr_warn("MPTSAS MODULE IS NOT SUPPORTED\n");
+#endif
+
error = scsi_add_host(sh, &ioc->pcidev->dev);
if (error) {
dprintk(ioc, printk(MYIOC_s_ERR_FMT
@@ -5383,6 +5388,10 @@ static void mptsas_remove(struct pci_dev *pdev)
}
static struct pci_device_id mptsas_pci_table[] = {
+#ifdef CONFIG_RHEL_DIFFERENCES
+ { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068,
+ PCI_VENDOR_ID_VMWARE, PCI_ANY_ID },
+#else
{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1064,
PCI_ANY_ID, PCI_ANY_ID },
{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068,
@@ -5395,6 +5404,7 @@ static struct pci_device_id mptsas_pci_table[] = {
PCI_ANY_ID, PCI_ANY_ID },
{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068_820XELP,
PCI_ANY_ID, PCI_ANY_ID },
+#endif
{0} /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, mptsas_pci_table);
diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c
index acd4805dcf83..5f814d447ab3 100644
--- a/drivers/message/fusion/mptspi.c
+++ b/drivers/message/fusion/mptspi.c
@@ -1238,12 +1238,17 @@ static struct spi_function_template mptspi_transport_functions = {
*/
static struct pci_device_id mptspi_pci_table[] = {
+#ifdef CONFIG_RHEL_DIFFERENCES
+ { PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030,
+ PCI_VENDOR_ID_VMWARE, PCI_ANY_ID },
+#else
{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1030,
PCI_ANY_ID, PCI_ANY_ID },
{ PCI_VENDOR_ID_ATTO, MPI_MANUFACTPAGE_DEVID_53C1030,
PCI_ANY_ID, PCI_ANY_ID },
{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_53C1035,
PCI_ANY_ID, PCI_ANY_ID },
+#endif
{0} /* Terminating entry */
};
MODULE_DEVICE_TABLE(pci, mptspi_pci_table);
@@ -1534,6 +1539,12 @@ mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
0, 0, 0, 0, 5);
scsi_scan_host(sh);
+
+#ifdef CONFIG_RHEL_DIFFERENCES
+ add_taint(TAINT_SUPPORT_REMOVED, LOCKDEP_STILL_OK);
+ pr_warn("MPTSPI MODULE IS NOT SUPPORTED\n");
+#endif
+
return 0;
out_mptspi_probe:
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 3f5feb55cfba..9d8cb34845b3 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -933,6 +933,8 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
int bars, need_ioport;
bool disable_dev = false;
+ pci_hw_unmaintained(e1000_pci_tbl, pdev);
+
/* do not allocate ioport bars when not needed */
need_ioport = e1000_is_need_ioport(pdev);
if (need_ioport) {
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 8b2adc56b92a..3263b33c9b69 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -3045,6 +3045,8 @@ static int __init team_module_init(void)
if (err)
goto err_nl_init;
+ mark_driver_deprecated(DRV_NAME);
+
return 0;
err_nl_init:
diff --git a/drivers/net/wireguard/main.c b/drivers/net/wireguard/main.c
index ee4da9ab8013..0f217997a764 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 wg_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;
@@ -48,6 +54,7 @@ static int __init wg_mod_init(void)
pr_info("WireGuard " WIREGUARD_VERSION " loaded. See www.wireguard.com for information.\n");
pr_info("Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.\n");
+ mark_tech_preview("WireGuard", THIS_MODULE);
return 0;
err_netlink:
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 79005ea1a33e..355445ee7956 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -244,6 +244,9 @@ static void nvme_delete_ctrl_sync(struct nvme_ctrl *ctrl)
static blk_status_t nvme_error_status(u16 status)
{
+ if (unlikely(status & NVME_SC_DNR))
+ return BLK_STS_TARGET;
+
switch (status & 0x7ff) {
case NVME_SC_SUCCESS:
return BLK_STS_OK;
@@ -303,6 +306,7 @@ enum nvme_disposition {
COMPLETE,
RETRY,
FAILOVER,
+ FAILUP,
};
static inline enum nvme_disposition nvme_decide_disposition(struct request *req)
@@ -310,15 +314,16 @@ static inline enum nvme_disposition nvme_decide_disposition(struct request *req)
if (likely(nvme_req(req)->status == 0))
return COMPLETE;
- if (blk_noretry_request(req) ||
+ if ((req->cmd_flags & (REQ_FAILFAST_DEV | REQ_FAILFAST_DRIVER)) ||
(nvme_req(req)->status & NVME_SC_DNR) ||
nvme_req(req)->retries >= nvme_max_retries)
return COMPLETE;
- if (req->cmd_flags & REQ_NVME_MPATH) {
+ if (req->cmd_flags & (REQ_NVME_MPATH | REQ_FAILFAST_TRANSPORT)) {
if (nvme_is_path_error(nvme_req(req)->status) ||
blk_queue_dying(req->q))
- return FAILOVER;
+ return (req->cmd_flags & REQ_NVME_MPATH) ?
+ FAILOVER : FAILUP;
} else {
if (blk_queue_dying(req->q))
return COMPLETE;
@@ -344,6 +349,14 @@ static inline void nvme_end_req(struct request *req)
blk_mq_end_request(req, status);
}
+static inline void nvme_failup_req(struct request *req)
+{
+ nvme_update_ana(req);
+
+ nvme_req(req)->status = NVME_SC_HOST_PATH_ERROR;
+ nvme_end_req(req);
+}
+
void nvme_complete_rq(struct request *req)
{
trace_nvme_complete_rq(req);
@@ -362,6 +375,9 @@ void nvme_complete_rq(struct request *req)
case FAILOVER:
nvme_failover_req(req);
return;
+ case FAILUP:
+ nvme_failup_req(req);
+ return;
}
}
EXPORT_SYMBOL_GPL(nvme_complete_rq);
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index f8bf6606eb2f..88383f443a58 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -101,14 +101,10 @@ bool nvme_mpath_set_disk_name(struct nvme_ns *ns, char *disk_name, int *flags)
return true;
}
-void nvme_failover_req(struct request *req)
+void nvme_update_ana(struct request *req)
{
struct nvme_ns *ns = req->q->queuedata;
u16 status = nvme_req(req)->status & 0x7ff;
- unsigned long flags;
- struct bio *bio;
-
- nvme_mpath_clear_current_path(ns);
/*
* If we got back an ANA error, we know the controller is alive but not
@@ -119,6 +115,16 @@ void nvme_failover_req(struct request *req)
set_bit(NVME_NS_ANA_PENDING, &ns->flags);
queue_work(nvme_wq, &ns->ctrl->ana_work);
}
+}
+
+void nvme_failover_req(struct request *req)
+{
+ struct nvme_ns *ns = req->q->queuedata;
+ unsigned long flags;
+ struct bio *bio;
+
+ nvme_mpath_clear_current_path(ns);
+ nvme_update_ana(req);
spin_lock_irqsave(&ns->head->requeue_lock, flags);
for (bio = req->bio; bio; bio = bio->bi_next) {
@@ -869,8 +875,7 @@ int nvme_mpath_init_identify(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id)
int error = 0;
/* check if multipath is enabled and we have the capability */
- if (!multipath || !ctrl->subsys ||
- !(ctrl->subsys->cmic & NVME_CTRL_CMIC_ANA))
+ if (!ctrl->subsys || !(ctrl->subsys->cmic & NVME_CTRL_CMIC_ANA))
return 0;
if (!ctrl->max_namespaces ||
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index a162f6c6da6e..0606205d5dcc 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -770,6 +770,7 @@ void nvme_mpath_start_freeze(struct nvme_subsystem *subsys);
void nvme_mpath_default_iopolicy(struct nvme_subsystem *subsys);
bool nvme_mpath_set_disk_name(struct nvme_ns *ns, char *disk_name, int *flags);
void nvme_failover_req(struct request *req);
+void nvme_update_ana(struct request *req);
void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl);
int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl,struct nvme_ns_head *head);
void nvme_mpath_add_disk(struct nvme_ns *ns, struct nvme_id_ns *id);
@@ -808,6 +809,9 @@ static inline bool nvme_mpath_set_disk_name(struct nvme_ns *ns, char *disk_name,
static inline void nvme_failover_req(struct request *req)
{
}
+static inline void nvme_update_ana(struct request *req)
+{
+}
static inline void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl)
{
}
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 588588cfda48..adb3a91b0ba3 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -19,6 +19,7 @@
#include <linux/kexec.h>
#include <linux/of_device.h>
#include <linux/acpi.h>
+#include <linux/kernel.h>
#include <linux/dma-map-ops.h>
#include "pci.h"
#include "pcie/portdrv.h"
@@ -295,6 +296,83 @@ static struct attribute *pci_drv_attrs[] = {
};
ATTRIBUTE_GROUPS(pci_drv);
+#ifdef CONFIG_RHEL_DIFFERENCES
+/**
+ * pci_hw_deprecated - Tell if a PCI device is deprecated
+ * @ids: array of PCI device id structures to search in
+ * @dev: the PCI device structure to match against
+ *
+ * Used by a driver to check whether this device is in its list of deprecated
+ * devices. Returns the matching pci_device_id structure or %NULL if there is
+ * no match.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+const struct pci_device_id *pci_hw_deprecated(const struct pci_device_id *ids,
+ struct pci_dev *dev)
+{
+ const struct pci_device_id *ret = pci_match_id(ids, dev);
+
+ if (!ret)
+ return NULL;
+
+ mark_hardware_deprecated(dev_driver_string(&dev->dev), "%04X:%04X @ %s",
+ dev->device, dev->vendor, pci_name(dev));
+ return ret;
+}
+EXPORT_SYMBOL(pci_hw_deprecated);
+
+/**
+ * pci_hw_unmaintained - Tell if a PCI device is unmaintained
+ * @ids: array of PCI device id structures to search in
+ * @dev: the PCI device structure to match against
+ *
+ * Used by a driver to check whether this device is in its list of unmaintained
+ * devices. Returns the matching pci_device_id structure or %NULL if there is
+ * no match.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+const struct pci_device_id *pci_hw_unmaintained(const struct pci_device_id *ids,
+ struct pci_dev *dev)
+{
+ const struct pci_device_id *ret = pci_match_id(ids, dev);
+
+ if (!ret)
+ return NULL;
+
+ mark_hardware_unmaintained(dev_driver_string(&dev->dev), "%04X:%04X @ %s",
+ dev->device, dev->vendor, pci_name(dev));
+ return ret;
+}
+EXPORT_SYMBOL(pci_hw_unmaintained);
+
+/**
+ * pci_hw_disabled - Tell if a PCI device is disabled
+ * @ids: array of PCI device id structures to search in
+ * @dev: the PCI device structure to match against
+ *
+ * Used by a driver to check whether this device is in its list of disabled
+ * devices. Returns the matching pci_device_id structure or %NULL if there is
+ * no match.
+ *
+ * Reserved for Internal Red Hat use only.
+ */
+const struct pci_device_id *pci_hw_disabled(const struct pci_device_id *ids,
+ struct pci_dev *dev)
+{
+ const struct pci_device_id *ret = pci_match_id(ids, dev);
+
+ if (!ret)
+ return NULL;
+
+ mark_hardware_disabled(dev_driver_string(&dev->dev), "%04X:%04X @ %s",
+ dev->device, dev->vendor, pci_name(dev));
+ return ret;
+}
+EXPORT_SYMBOL(pci_hw_disabled);
+#endif
+
struct drv_dev_and_id {
struct pci_driver *drv;
struct pci_dev *dev;
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index d2dd6a6cda60..3339eccbac79 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4272,6 +4272,30 @@ 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/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index a911252075a6..9bc69f6880f3 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -78,6 +78,7 @@ char aac_driver_version[] = AAC_DRIVER_FULL_VERSION;
* Note: The last field is used to index into aac_drivers below.
*/
static const struct pci_device_id aac_pci_tbl[] = {
+#ifndef CONFIG_RHEL_DIFFERENCES
{ 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */
{ 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */
{ 0x1028, 0x0003, 0x1028, 0x0003, 0, 0, 2 }, /* PERC 3/Si (SlimFast/PERC3Si */
@@ -145,6 +146,7 @@ static const struct pci_device_id aac_pci_tbl[] = {
{ 0x9005, 0x0285, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 59 }, /* Adaptec Catch All */
{ 0x9005, 0x0286, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 60 }, /* Adaptec Rocket Catch All */
{ 0x9005, 0x0288, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 61 }, /* Adaptec NEMER/ARK Catch All */
+#endif
{ 0x9005, 0x028b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 62 }, /* Adaptec PMC Series 6 (Tupelo) */
{ 0x9005, 0x028c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 63 }, /* Adaptec PMC Series 7 (Denali) */
{ 0x9005, 0x028d, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 64 }, /* Adaptec PMC Series 8 */
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index ab55681145f8..1f8b0f73597b 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -372,11 +372,13 @@ static int beiscsi_eh_device_reset(struct scsi_cmnd *sc)
/*------------------- PCI Driver operations and data ----------------- */
static const struct pci_device_id beiscsi_pci_id_table[] = {
+#ifndef CONFIG_RHEL_DIFFERENCES
{ PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
{ PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
{ PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
{ PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
{ PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID3) },
+#endif
{ PCI_DEVICE(ELX_VENDOR_ID, OC_SKH_ID1) },
{ 0 }
};
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index a47bcce3c9c7..094944a52866 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -82,7 +82,9 @@ MODULE_DESCRIPTION("Driver for HP Smart Array Controller version " \
HPSA_DRIVER_VERSION);
MODULE_VERSION(HPSA_DRIVER_VERSION);
MODULE_LICENSE("GPL");
+#ifndef CONFIG_RHEL_DIFFERENCES
MODULE_ALIAS("cciss");
+#endif
static int hpsa_simple_mode;
module_param(hpsa_simple_mode, int, S_IRUGO|S_IWUSR);
@@ -144,10 +146,12 @@ static const struct pci_device_id hpsa_pci_device_id[] = {
{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x007D},
{PCI_VENDOR_ID_HP_3PAR, 0x0075, 0x1590, 0x0088},
{PCI_VENDOR_ID_HP, 0x333f, 0x103c, 0x333f},
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0},
{PCI_VENDOR_ID_COMPAQ, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0},
+#endif
{0,}
};
diff --git a/drivers/scsi/lpfc/lpfc_ids.h b/drivers/scsi/lpfc/lpfc_ids.h
index 6a90e6e53d09..7e48c3bf701d 100644
--- a/drivers/scsi/lpfc/lpfc_ids.h
+++ b/drivers/scsi/lpfc/lpfc_ids.h
@@ -24,6 +24,7 @@
#include <linux/pci.h>
const struct pci_device_id lpfc_id_table[] = {
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
@@ -54,14 +55,19 @@ const struct pci_device_id lpfc_id_table[] = {
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
PCI_ANY_ID, PCI_ANY_ID, },
+#endif
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
PCI_ANY_ID, PCI_ANY_ID, },
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
PCI_ANY_ID, PCI_ANY_ID, },
+#endif
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
PCI_ANY_ID, PCI_ANY_ID, },
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
PCI_ANY_ID, PCI_ANY_ID, },
+#endif
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
@@ -70,6 +76,7 @@ const struct pci_device_id lpfc_id_table[] = {
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
PCI_ANY_ID, PCI_ANY_ID, },
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
@@ -80,6 +87,7 @@ const struct pci_device_id lpfc_id_table[] = {
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
PCI_ANY_ID, PCI_ANY_ID, },
+#endif
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
@@ -92,6 +100,7 @@ const struct pci_device_id lpfc_id_table[] = {
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
PCI_ANY_ID, PCI_ANY_ID, },
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
@@ -102,18 +111,23 @@ const struct pci_device_id lpfc_id_table[] = {
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
PCI_ANY_ID, PCI_ANY_ID, },
+#endif
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
PCI_ANY_ID, PCI_ANY_ID, },
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
PCI_ANY_ID, PCI_ANY_ID, },
+#endif
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
PCI_ANY_ID, PCI_ANY_ID, },
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
PCI_ANY_ID, PCI_ANY_ID, },
+#endif
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_G6_FC,
PCI_ANY_ID, PCI_ANY_ID, },
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_G7_FC,
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 82e1e24257bc..d256b02a5d2f 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -149,6 +149,7 @@ megasas_set_ld_removed_by_fw(struct megasas_instance *instance);
*/
static struct pci_device_id megasas_pci_table[] = {
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)},
/* xscale IOP */
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)},
@@ -157,16 +158,19 @@ static struct pci_device_id megasas_pci_table[] = {
/* ppc IOP */
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078GEN2)},
/* gen2*/
+#endif
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0079GEN2)},
/* gen2*/
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0073SKINNY)},
/* skinny*/
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS0071SKINNY)},
/* skinny*/
+#ifndef CONFIG_RHEL_DIFFERENCES
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)},
/* xscale IOP, vega */
{PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)},
/* xscale IOP */
+#endif
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_FUSION)},
/* Fusion */
{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_PLASMA)},
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 00792767c620..2ee890521ed7 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -12605,6 +12605,7 @@ bool scsih_ncq_prio_supp(struct scsi_device *sdev)
* The pci device ids are defined in mpi/mpi2_cnfg.h.
*/
static const struct pci_device_id mpt3sas_pci_table[] = {
+#ifndef CONFIG_RHEL_DIFFERENCES
/* Spitfire ~ 2004 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2004,
PCI_ANY_ID, PCI_ANY_ID },
@@ -12623,6 +12624,7 @@ static const struct pci_device_id mpt3sas_pci_table[] = {
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2116_2,
PCI_ANY_ID, PCI_ANY_ID },
+#endif
/* Thunderbolt ~ 2208 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SAS2208_1,
PCI_ANY_ID, PCI_ANY_ID },
@@ -12647,9 +12649,11 @@ static const struct pci_device_id mpt3sas_pci_table[] = {
PCI_ANY_ID, PCI_ANY_ID },
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SWITCH_MPI_EP_1,
PCI_ANY_ID, PCI_ANY_ID },
+#ifndef CONFIG_RHEL_DIFFERENCES
/* SSS6200 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI2_MFGPAGE_DEVID_SSS6200,
PCI_ANY_ID, PCI_ANY_ID },
+#endif
/* Fury ~ 3004 and 3008 */
{ MPI2_MFGPAGE_VENDORID_LSI, MPI25_MFGPAGE_DEVID_SAS3004,
PCI_ANY_ID, PCI_ANY_ID },
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index abcd30917263..3f0b22e61350 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -7937,6 +7937,7 @@ static const struct pci_error_handlers qla2xxx_err_handler = {
};
static struct pci_device_id qla2xxx_pci_tbl[] = {
+#ifndef CONFIG_RHEL_DIFFERENCES
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
@@ -7949,13 +7950,18 @@ static struct pci_device_id qla2xxx_pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
+#endif
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2031) },
+#ifndef CONFIG_RHEL_DIFFERENCES
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8001) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8021) },
+#endif
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8031) },
+#ifndef CONFIG_RHEL_DIFFERENCES
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISPF001) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8044) },
+#endif
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2071) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2271) },
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2261) },
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 0ae936d839f1..c7b3fe22e3e4 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -9855,6 +9855,7 @@ static struct pci_device_id qla4xxx_pci_tbl[] = {
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},
+#ifndef CONFIG_RHEL_DIFFERENCES
{
.vendor = PCI_VENDOR_ID_QLOGIC,
.device = PCI_DEVICE_ID_QLOGIC_ISP8022,
@@ -9873,6 +9874,7 @@ static struct pci_device_id qla4xxx_pci_tbl[] = {
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
},
+#endif
{0, 0},
};
MODULE_DEVICE_TABLE(pci, qla4xxx_pci_tbl);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 47a1c8bddf86..e309d992e2ad 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5683,6 +5683,13 @@ 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/drivers/virtio/virtio_mem.c b/drivers/virtio/virtio_mem.c
index 38becd8d578c..f4ec685879cf 100644
--- a/drivers/virtio/virtio_mem.c
+++ b/drivers/virtio/virtio_mem.c
@@ -2792,6 +2792,19 @@ static int virtio_mem_probe(struct virtio_device *vdev)
/* trigger a config update to start processing the requested_size */
if (!vm->in_kdump) {
+#ifdef CONFIG_RHEL_DIFFERENCES
+ static bool printed;
+
+ /*
+ * virtio-mem, and especially its memory hot(un)plug
+ * functionality, is tech-preview.
+ */
+ if (!printed) {
+ printed = true;
+ mark_tech_preview("virtio_mem", THIS_MODULE);
+ }
+#endif /* CONFIG_RHEL_DIFFERENCES */
+
atomic_set(&vm->config_changed, 1);
queue_work(system_freezable_wq, &vm->wq);
}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index c5021ca0a28a..b64257a6eebc 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4760,6 +4760,7 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
}
if (sbi->s_mount_opt & EXT4_MOUNT_DAX_ALWAYS) {
+ static bool printed = false;
if (ext4_has_feature_inline_data(sb)) {
ext4_msg(sb, KERN_ERR, "Cannot use DAX on a filesystem"
" that may contain inline data");
@@ -4770,6 +4771,10 @@ static int __ext4_fill_super(struct fs_context *fc, struct super_block *sb)
"DAX unsupported by block device.");
goto failed_mount;
}
+ if (!printed) {
+ mark_tech_preview("ext4 direct access (dax)", NULL);
+ printed = true;
+ }
}
if (ext4_has_feature_encrypt(sb) && es->s_encryption_level) {
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 4c0dee78b2f8..6cf5ed2d039a 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1602,9 +1602,14 @@ xfs_fs_fill_super(
sb->s_flags |= SB_I_VERSION;
if (xfs_has_dax_always(mp)) {
+ static bool printed = false;
error = xfs_setup_dax_always(mp);
if (error)
goto out_filestream_unmount;
+ if (!printed) {
+ mark_tech_preview("xfs direct access (dax)", NULL);
+ printed = true;
+ }
}
if (xfs_has_discard(mp)) {
diff --git a/include/linux/efi.h b/include/linux/efi.h
index ccd4d3f91c98..e64643e3e364 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 */
@@ -829,6 +831,14 @@ 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
/*
@@ -840,6 +850,8 @@ 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)
@@ -860,6 +872,8 @@ 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;
@@ -872,6 +886,7 @@ 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
@@ -1124,13 +1139,6 @@ 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/kernel.h b/include/linux/kernel.h
index 33f47a996513..7a716c0b05bc 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -503,4 +503,23 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
/* OTHER_WRITABLE? Generally considered a bad idea. */ \
BUILD_BUG_ON_ZERO((perms) & 2) + \
(perms))
+
+struct module;
+
+#ifdef CONFIG_RHEL_DIFFERENCES
+void mark_hardware_unmaintained(const char *driver_name, char *fmt, ...);
+void mark_driver_unmaintained(const char *driver_name);
+void mark_hardware_deprecated(const char *driver_name, char *fmt, ...);
+void mark_driver_deprecated(const char *driver_name);
+void mark_hardware_disabled(const char *driver_name, char *fmt, ...);
+void mark_tech_preview(const char *msg, struct module *mod);
+#else
+static inline void mark_hardware_unsupported(const char *driver_name, char *fmt, ...) { }
+static inline void mark_driver_unmaintained(const char *driver_name) { }
+static inline void mark_hardware_deprecated(const char *driver_name, char *fmt, ...) { }
+static inline void mark_driver_deprecated(const char *driver_name) { }
+static inline void mark_hardware_disabled(const char *driver_name, char *fmt, ...) { }
+static inline void mark_tech_preview(const char *msg, struct module *mod) { }
+#endif
+
#endif
diff --git a/include/linux/lsm_hook_defs.h b/include/linux/lsm_hook_defs.h
index 819ec92dc2a8..b49986bfbeca 100644
--- a/include/linux/lsm_hook_defs.h
+++ b/include/linux/lsm_hook_defs.h
@@ -392,6 +392,8 @@ 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 3bf5c658bc44..4701bc5ce2f5 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -1544,6 +1544,12 @@
*
* @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/mmzone.h b/include/linux/mmzone.h
index aed44e9b5d89..08517376c765 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -1390,11 +1390,9 @@ static inline unsigned long *section_to_usemap(struct mem_section *ms)
static inline struct mem_section *__nr_to_section(unsigned long nr)
{
#ifdef CONFIG_SPARSEMEM_EXTREME
- if (!mem_section)
+ if (!*mem_section || !mem_section[SECTION_NR_TO_ROOT(nr)])
return NULL;
#endif
- if (!mem_section[SECTION_NR_TO_ROOT(nr)])
- return NULL;
return &mem_section[SECTION_NR_TO_ROOT(nr)][nr & SECTION_ROOT_MASK];
}
extern size_t mem_section_usage_size(void);
diff --git a/include/linux/module.h b/include/linux/module.h
index 1e135fd5c076..6ec4d001c1e2 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -381,6 +381,7 @@ struct module {
struct module_attribute *modinfo_attrs;
const char *version;
const char *srcversion;
+ const char *rhelversion;
struct kobject *holders_dir;
/* Exported symbols */
diff --git a/include/linux/panic.h b/include/linux/panic.h
index f5844908a089..901d51012738 100644
--- a/include/linux/panic.h
+++ b/include/linux/panic.h
@@ -74,7 +74,24 @@ static inline void set_arch_panic_timeout(int timeout, int arch_default_timeout)
#define TAINT_LIVEPATCH 15
#define TAINT_AUX 16
#define TAINT_RANDSTRUCT 17
-#define TAINT_FLAGS_COUNT 18
+/* Start of Red Hat-specific taint flags */
+#define TAINT_18 18
+#define TAINT_19 19
+#define TAINT_20 20
+#define TAINT_21 21
+#define TAINT_22 22
+#define TAINT_23 23
+#define TAINT_24 24
+#define TAINT_25 25
+#define TAINT_26 26
+#define TAINT_SUPPORT_REMOVED 27
+/* Bits 28 - 31 are reserved for Red Hat use only */
+#define TAINT_RESERVED28 28
+#define TAINT_RESERVED29 29
+#define TAINT_RESERVED30 30
+#define TAINT_UNPRIVILEGED_BPF 31
+/* End of Red Hat-specific taint flags */
+#define TAINT_FLAGS_COUNT 32
#define TAINT_FLAGS_MAX ((1UL << TAINT_FLAGS_COUNT) - 1)
struct taint_flag {
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 8253a5413d7c..8dcbd8f1700f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1490,6 +1490,22 @@ int pci_add_dynid(struct pci_driver *drv,
unsigned long driver_data);
const struct pci_device_id *pci_match_id(const struct pci_device_id *ids,
struct pci_dev *dev);
+
+#ifdef CONFIG_RHEL_DIFFERENCES
+const struct pci_device_id *pci_hw_deprecated(const struct pci_device_id *ids,
+ struct pci_dev *dev);
+const struct pci_device_id *pci_hw_unmaintained(const struct pci_device_id *ids,
+ struct pci_dev *dev);
+const struct pci_device_id *pci_hw_disabled(const struct pci_device_id *ids,
+ struct pci_dev *dev);
+#else
+static inline const struct pci_device_id *pci_hw_deprecated(const struct pci_device_id *ids,
+ struct pci_dev *dev) { return NULL; }
+static inline const struct pci_device_id *pci_hw_unmaintained(const struct pci_device_id *ids,
+ struct pci_dev *dev) { return NULL; }
+static inline const struct pci_device_id *pci_hw_disabled(const struct pci_device_id *ids,
+ struct pci_dev *dev) {return NULL; }
+#endif
int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max,
int pass);
diff --git a/include/linux/random.h b/include/linux/random.h
index c45b2693e51f..4edfdb3e44a9 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/rh_kabi.h b/include/linux/rh_kabi.h
new file mode 100644
index 000000000000..c7b42c1f1681
--- /dev/null
+++ b/include/linux/rh_kabi.h
@@ -0,0 +1,515 @@
+/*
+ * rh_kabi.h - Red Hat kABI abstraction header
+ *
+ * Copyright (c) 2014 Don Zickus
+ * Copyright (c) 2015-2020 Jiri Benc
+ * Copyright (c) 2015 Sabrina Dubroca, Hannes Frederic Sowa
+ * Copyright (c) 2016-2018 Prarit Bhargava
+ * Copyright (c) 2017 Paolo Abeni, Larry Woodman
+ *
+ * This file is released under the GPLv2.
+ * See the file COPYING for more details.
+ *
+ * These kabi macros hide the changes from the kabi checker and from the
+ * process that computes the exported symbols' checksums.
+ * They have 2 variants: one (defined under __GENKSYMS__) used when
+ * generating the checksums, and the other used when building the kernel's
+ * binaries.
+ *
+ * The use of these macros does not guarantee that the usage and modification
+ * of code is correct. As with all Red Hat only changes, an engineer must
+ * explain why the use of the macro is valid in the patch containing the
+ * changes.
+ *
+ */
+
+#ifndef _LINUX_RH_KABI_H
+#define _LINUX_RH_KABI_H
+
+#include <linux/kconfig.h>
+#include <linux/compiler.h>
+#include <linux/stringify.h>
+
+/*
+ * NOTE
+ * Unless indicated otherwise, don't use ';' after these macros as it
+ * messes up the kABI checker by changing what the resulting token string
+ * looks like. Instead let the macros add the ';' so it can be properly
+ * hidden from the kABI checker (mainly for RH_KABI_EXTEND, but applied to
+ * most macros for uniformity).
+ *
+ *
+ * RH_KABI_CONST
+ * Adds a new const modifier to a function parameter preserving the old
+ * checksum.
+ *
+ * RH_KABI_ADD_MODIFIER
+ * Adds a new modifier to a function parameter or a typedef, preserving
+ * the old checksum. Useful e.g. for adding rcu annotations or changing
+ * int to unsigned. Beware that this may change the semantics; if you're
+ * sure this is safe, always explain why binary compatibility with 3rd
+ * party modules is retained.
+ *
+ * RH_KABI_DEPRECATE
+ * Marks the element as deprecated and make it unusable by modules while
+ * keeping a hole in its place to preserve binary compatibility.
+ *
+ * RH_KABI_DEPRECATE_FN
+ * Marks the function pointer as deprecated and make it unusable by modules
+ * while keeping a hole in its place to preserve binary compatibility.
+ *
+ * RH_KABI_EXTEND
+ * Adds a new field to a struct. This must always be added to the end of
+ * the struct. Before using this macro, make sure this is actually safe
+ * to do - there is a number of conditions under which it is *not* safe.
+ * In particular (but not limited to), this macro cannot be used:
+ * - if the struct in question is embedded in another struct, or
+ * - if the struct is allocated by drivers either statically or
+ * dynamically, or
+ * - if the struct is allocated together with driver data (an example of
+ * such behavior is struct net_device or struct request).
+ *
+ * RH_KABI_EXTEND_WITH_SIZE
+ * Adds a new element (usually a struct) to a struct and reserves extra
+ * space for the new element. The provided 'size' is the total space to
+ * be added in longs (i.e. it's 8 * 'size' bytes), including the size of
+ * the added element. It is automatically checked that the new element
+ * does not overflow the reserved space, now nor in the future. However,
+ * no attempt is done to check the content of the added element (struct)
+ * for kABI conformance - kABI checking inside the added element is
+ * effectively switched off.
+ * For any struct being added by RH_KABI_EXTEND_WITH_SIZE, it is
+ * recommended its content to be documented as not covered by kABI
+ * guarantee.
+ *
+ * RH_KABI_FILL_HOLE
+ * Fills a hole in a struct.
+ *
+ * Warning: only use if a hole exists for _all_ arches. Use pahole to verify.
+ *
+ * RH_KABI_RENAME
+ * Renames an element without changing its type. This macro can be used in
+ * bitfields, for example.
+ *
+ * NOTE: this macro does not add the final ';'
+ *
+ * RH_KABI_REPLACE
+ * Replaces the _orig field by the _new field. The size of the occupied
+ * space is preserved, it's fine if the _new field is smaller than the
+ * _orig field. If a _new field is larger or has a different alignment,
+ * compilation will abort.
+ *
+ * RH_KABI_REPLACE_SPLIT
+ * Works the same as RH_KABI_REPLACE but replaces a single _orig field by
+ * multiple new fields. The checks for size and alignment done by
+ * RH_KABI_REPLACE are still applied.
+ *
+ * RH_KABI_HIDE_INCLUDE
+ * Hides the given include file from kABI checksum computations. This is
+ * used when a newly added #include makes a previously opaque struct
+ * visible.
+ *
+ * Example usage:
+ * #include RH_KABI_HIDE_INCLUDE(<linux/poll.h>)
+ *
+ * RH_KABI_FAKE_INCLUDE
+ * Pretends inclusion of the given file for kABI checksum computations.
+ * This is used when upstream removed a particular #include but that made
+ * some structures opaque that were previously visible and is causing kABI
+ * checker failures.
+ *
+ * Example usage:
+ * #include RH_KABI_FAKE_INCLUDE(<linux/rhashtable.h>)
+ *
+ * RH_KABI_RESERVE
+ * Adds a reserved field to a struct. This is done prior to kABI freeze
+ * for structs that cannot be expanded later using RH_KABI_EXTEND (for
+ * example because they are embedded in another struct or because they are
+ * allocated by drivers or because they use unusual memory layout). The
+ * size of the reserved field is 'unsigned long' and is assumed to be
+ * 8 bytes.
+ *
+ * The argument is a number unique for the given struct; usually, multiple
+ * RH_KABI_RESERVE macros are added to a struct with numbers starting from
+ * one.
+ *
+ * Example usage:
+ * struct foo {
+ * int a;
+ * RH_KABI_RESERVE(1)
+ * RH_KABI_RESERVE(2)
+ * RH_KABI_RESERVE(3)
+ * RH_KABI_RESERVE(4)
+ * };
+ *
+ * RH_KABI_USE
+ * Uses a previously reserved field or multiple fields. The arguments are
+ * one or more numbers assigned to RH_KABI_RESERVE, followed by a field to
+ * be put in their place. The compiler ensures that the new field is not
+ * larger than the reserved area.
+ *
+ * Example usage:
+ * struct foo {
+ * int a;
+ * RH_KABI_USE(1, int b)
+ * RH_KABI_USE(2, 3, int c[3])
+ * RH_KABI_RESERVE(4)
+ * };
+ *
+ * RH_KABI_USE_SPLIT
+ * Works the same as RH_KABI_USE but replaces a single reserved field by
+ * multiple new fields.
+ *
+ * RH_KABI_AUX_EMBED
+ * RH_KABI_AUX_PTR
+ * Adds an extenstion of a struct in the form of "auxiliary structure".
+ * This is done prior to kABI freeze for structs that cannot be expanded
+ * later using RH_KABI_EXTEND. See also RH_KABI_RESERVED, these two
+ * approaches can (and often are) combined.
+ *
+ * To use this for 'struct foo' (the "base structure"), define a new
+ * structure called 'struct foo_rh'; this new struct is called "auxiliary
+ * structure". Then add RH_KABI_AUX_EMBED or RH_KABI_AUX_PTR to the end
+ * of the base structure. The argument is the name of the base structure,
+ * without the 'struct' keyword.
+ *
+ * RH_KABI_AUX_PTR stores a pointer to the aux structure in the base
+ * struct. The lifecycle of the aux struct needs to be properly taken
+ * care of.
+ *
+ * RH_KABI_AUX_EMBED embeds the aux struct into the base struct. This
+ * cannot be used when the base struct is itself embedded into another
+ * struct, allocated in an array, etc.
+ *
+ * Both approaches (ptr and embed) work correctly even when the aux struct
+ * is allocated by modules. To ensure this, the code responsible for
+ * allocation/assignment of the aux struct has to properly set the size of
+ * the aux struct; see the RH_KABI_AUX_SET_SIZE and RH_KABI_AUX_INIT_SIZE
+ * macros.
+ *
+ * New fields can be later added to the auxiliary structure, always to its
+ * end. Note the auxiliary structure cannot be shrunk in size later (i.e.,
+ * fields cannot be removed, only deprecated). Any code accessing fields
+ * from the aux struct must guard the access using the RH_KABI_AUX macro.
+ * The access itself is then done via a '_rh' field in the base struct.
+ *
+ * The auxiliary structure is not guaranteed for access by modules unless
+ * explicitly commented as such in the declaration of the aux struct
+ * itself or some of its elements.
+ *
+ * Example:
+ *
+ * struct foo_rh {
+ * int newly_added;
+ * };
+ *
+ * struct foo {
+ * bool big_hammer;
+ * RH_KABI_AUX_PTR(foo)
+ * };
+ *
+ * void use(struct foo *f)
+ * {
+ * if (RH_KABI_AUX(f, foo, newly_added))
+ * f->_rh->newly_added = 123;
+ * else
+ * // the field 'newly_added' is not present in the passed
+ * // struct, fall back to old behavior
+ * f->big_hammer = true;
+ * }
+ *
+ * static struct foo_rh my_foo_rh {
+ * .newly_added = 0;
+ * }
+ *
+ * static struct foo my_foo = {
+ * .big_hammer = false,
+ * ._rh = &my_foo_rh,
+ * RH_KABI_AUX_INIT_SIZE(foo)
+ * };
+ *
+ * RH_KABI_USE_AUX_PTR
+ * Creates an auxiliary structure post kABI freeze. This works by using
+ * two reserved fields (thus there has to be two reserved fields still
+ * available) and converting them to RH_KABI_AUX_PTR.
+ *
+ * Example:
+ *
+ * struct foo_rh {
+ * };
+ *
+ * struct foo {
+ * int a;
+ * RH_KABI_RESERVE(1)
+ * RH_KABI_USE_AUX_PTR(2, 3, foo)
+ * };
+ *
+ * RH_KABI_AUX_SET_SIZE
+ * RH_KABI_AUX_INIT_SIZE
+ * Calculates and stores the size of the auxiliary structure.
+ *
+ * RH_KABI_AUX_SET_SIZE is for dynamically allocated base structs,
+ * RH_KABI_AUX_INIT_SIZE is for statically allocated case structs.
+ *
+ * These macros must be called from the allocation (RH_KABI_AUX_SET_SIZE)
+ * or declaration (RH_KABI_AUX_INIT_SIZE) site, regardless of whether
+ * that happens in the kernel or in a module. Without calling one of
+ * these macros, the aux struct will appear to have no fields to the
+ * kernel.
+ *
+ * Note: since RH_KABI_AUX_SET_SIZE is intended to be invoked outside of
+ * a struct definition, it does not add the semicolon and must be
+ * terminated by semicolon by the caller.
+ *
+ * RH_KABI_AUX
+ * Verifies that the given field exists in the given auxiliary structure.
+ * This MUST be called prior to accessing that field; failing to do that
+ * may lead to invalid memory access.
+ *
+ * The first argument is a pointer to the base struct, the second argument
+ * is the name of the base struct (without the 'struct' keyword), the
+ * third argument is the field name.
+ *
+ * This macro works for structs extended by either of RH_KABI_AUX_EMBED,
+ * RH_KABI_AUX_PTR and RH_KABI_USE_AUX_PTR.
+ *
+ * RH_KABI_FORCE_CHANGE
+ * Force change of the symbol checksum. The argument of the macro is a
+ * version for cases we need to do this more than once.
+ *
+ * This macro does the opposite: it changes the symbol checksum without
+ * actually changing anything about the exported symbol. It is useful for
+ * symbols that are not whitelisted, we're changing them in an
+ * incompatible way and want to prevent 3rd party modules to silently
+ * corrupt memory. Instead, by changing the symbol checksum, such modules
+ * won't be loaded by the kernel. This macro should only be used as a
+ * last resort when all other KABI workarounds have failed.
+ *
+ * RH_KABI_EXCLUDE
+ * !!! WARNING: DANGEROUS, DO NOT USE unless you are aware of all the !!!
+ * !!! implications. This should be used ONLY EXCEPTIONALLY and only !!!
+ * !!! under specific circumstances. Very likely, this macro does not !!!
+ * !!! do what you expect it to do. Note that any usage of this macro !!!
+ * !!! MUST be paired with a RH_KABI_FORCE_CHANGE annotation of !!!
+ * !!! a suitable symbol (or an equivalent safeguard) and the commit !!!
+ * !!! log MUST explain why the chosen solution is appropriate. !!!
+ *
+ * Exclude the element from checksum generation. Any such element is
+ * considered not to be part of the kABI whitelist and may be changed at
+ * will. Note however that it's the responsibility of the developer
+ * changing the element to ensure 3rd party drivers using this element
+ * won't panic, for example by not allowing them to be loaded. That can
+ * be achieved by changing another, non-whitelisted symbol they use,
+ * either by nature of the change or by using RH_KABI_FORCE_CHANGE.
+ *
+ * Also note that any change to the element must preserve its size. Change
+ * of the size is not allowed and would constitute a silent kABI breakage.
+ * Beware that the RH_KABI_EXCLUDE macro does not do any size checks.
+ *
+ * RH_KABI_BROKEN_INSERT
+ * RH_KABI_BROKEN_REMOVE
+ * Insert a field to the middle of a struct / delete a field from a struct.
+ * Note that this breaks kABI! It can be done only when it's certain that
+ * no 3rd party driver can validly reach into the struct. A typical
+ * example is a struct that is: both (a) referenced only through a long
+ * chain of pointers from another struct that is part of a whitelisted
+ * symbol and (b) kernel internal only, it should have never been visible
+ * to genksyms in the first place.
+ *
+ * Another example are structs that are explicitly exempt from kABI
+ * guarantee but we did not have enough foresight to use RH_KABI_EXCLUDE.
+ * In this case, the warning for RH_KABI_EXCLUDE applies.
+ *
+ * A detailed explanation of correctness of every RH_KABI_BROKEN_* macro
+ * use is especially important.
+ *
+ * RH_KABI_BROKEN_INSERT_BLOCK
+ * RH_KABI_BROKEN_REMOVE_BLOCK
+ * A version of RH_KABI_BROKEN_INSERT / REMOVE that allows multiple fields
+ * to be inserted or removed together. All fields need to be terminated
+ * by ';' inside(!) the macro parameter. The macro itself must not be
+ * terminated by ';'.
+ *
+ * RH_KABI_BROKEN_REPLACE
+ * Replace a field by a different one without doing any checking. This
+ * allows replacing a field by another with a different size. Similarly
+ * to other RH_KABI_BROKEN macros, use of this indicates a kABI breakage.
+ *
+ * RH_KABI_BROKEN_INSERT_ENUM
+ * RH_KABI_BROKEN_REMOVE_ENUM
+ * Insert a field to the middle of an enumaration type / delete a field from
+ * an enumaration type. Note that this can break kABI especially if the
+ * number of enum fields is used in an array within a structure. It can be
+ * done only when it is certain that no 3rd party driver will use the
+ * enumeration type or a structure that embeds an array with size determined
+ * by an enumeration type.
+ *
+ * RH_KABI_EXTEND_ENUM
+ * Adds a new field to an enumeration type. This must always be added to
+ * the end of the enum. Before using this macro, make sure this is actually
+ * safe to do.
+ */
+
+#undef linux
+#define linux linux
+
+#ifdef __GENKSYMS__
+
+# define RH_KABI_CONST
+# define RH_KABI_ADD_MODIFIER(_new)
+# define RH_KABI_EXTEND(_new)
+# define RH_KABI_FILL_HOLE(_new)
+# define RH_KABI_FORCE_CHANGE(ver) __attribute__((rh_kabi_change ## ver))
+# define RH_KABI_RENAME(_orig, _new) _orig
+# define RH_KABI_HIDE_INCLUDE(_file) <linux/rh_kabi.h>
+# define RH_KABI_FAKE_INCLUDE(_file) _file
+# define RH_KABI_BROKEN_INSERT(_new)
+# define RH_KABI_BROKEN_REMOVE(_orig) _orig;
+# define RH_KABI_BROKEN_INSERT_BLOCK(_new)
+# define RH_KABI_BROKEN_REMOVE_BLOCK(_orig) _orig
+# define RH_KABI_BROKEN_REPLACE(_orig, _new) _orig;
+# define RH_KABI_BROKEN_INSERT_ENUM(_new)
+# define RH_KABI_BROKEN_REMOVE_ENUM(_orig) _orig,
+# define RH_KABI_EXTEND_ENUM(_new)
+
+# define _RH_KABI_DEPRECATE(_type, _orig) _type _orig
+# define _RH_KABI_DEPRECATE_FN(_type, _orig, _args...) _type (*_orig)(_args)
+# define _RH_KABI_REPLACE(_orig, _new) _orig
+# define _RH_KABI_EXCLUDE(_elem)
+
+#else
+
+# define RH_KABI_ALIGN_WARNING ". Disable CONFIG_RH_KABI_SIZE_ALIGN_CHECKS if debugging."
+
+# define RH_KABI_CONST const
+# define RH_KABI_ADD_MODIFIER(_new) _new
+# define RH_KABI_EXTEND(_new) _new;
+# define RH_KABI_FILL_HOLE(_new) _new;
+# define RH_KABI_FORCE_CHANGE(ver)
+# define RH_KABI_RENAME(_orig, _new) _new
+# define RH_KABI_HIDE_INCLUDE(_file) _file
+# define RH_KABI_FAKE_INCLUDE(_file) <linux/rh_kabi.h>
+# define RH_KABI_BROKEN_INSERT(_new) _new;
+# define RH_KABI_BROKEN_REMOVE(_orig)
+# define RH_KABI_BROKEN_INSERT_BLOCK(_new) _new
+# define RH_KABI_BROKEN_REMOVE_BLOCK(_orig)
+# define RH_KABI_BROKEN_REPLACE(_orig, _new) _new;
+# define RH_KABI_BROKEN_INSERT_ENUM(_new) _new,
+# define RH_KABI_BROKEN_REMOVE_ENUM(_orig)
+# define RH_KABI_EXTEND_ENUM(_new) _new,
+
+#if IS_BUILTIN(CONFIG_RH_KABI_SIZE_ALIGN_CHECKS)
+# define __RH_KABI_CHECK_SIZE_ALIGN(_orig, _new) \
+ union { \
+ _Static_assert(sizeof(struct{_new;}) <= sizeof(struct{_orig;}), \
+ __FILE__ ":" __stringify(__LINE__) ": " __stringify(_new) " is larger than " __stringify(_orig) RH_KABI_ALIGN_WARNING); \
+ _Static_assert(__alignof__(struct{_new;}) <= __alignof__(struct{_orig;}), \
+ __FILE__ ":" __stringify(__LINE__) ": " __stringify(_orig) " is not aligned the same as " __stringify(_new) RH_KABI_ALIGN_WARNING); \
+ }
+# define __RH_KABI_CHECK_SIZE(_item, _size) \
+ _Static_assert(sizeof(struct{_item;}) <= _size, \
+ __FILE__ ":" __stringify(__LINE__) ": " __stringify(_item) " is larger than the reserved size (" __stringify(_size) " bytes)" RH_KABI_ALIGN_WARNING)
+#else
+# define __RH_KABI_CHECK_SIZE_ALIGN(_orig, _new)
+# define __RH_KABI_CHECK_SIZE(_item, _size)
+#endif
+
+#define RH_KABI_UNIQUE_ID __PASTE(rh_kabi_hidden_, __LINE__)
+
+# define _RH_KABI_DEPRECATE(_type, _orig) _type rh_reserved_##_orig
+# define _RH_KABI_DEPRECATE_FN(_type, _orig, _args...) \
+ _type (* rh_reserved_##_orig)(_args)
+# define _RH_KABI_REPLACE(_orig, _new) \
+ union { \
+ _new; \
+ struct { \
+ _orig; \
+ } RH_KABI_UNIQUE_ID; \
+ __RH_KABI_CHECK_SIZE_ALIGN(_orig, _new); \
+ }
+
+# define _RH_KABI_EXCLUDE(_elem) _elem
+
+#endif /* __GENKSYMS__ */
+
+# define RH_KABI_DEPRECATE(_type, _orig) _RH_KABI_DEPRECATE(_type, _orig);
+# define RH_KABI_DEPRECATE_FN(_type, _orig, _args...) \
+ _RH_KABI_DEPRECATE_FN(_type, _orig, _args);
+# define RH_KABI_REPLACE(_orig, _new) _RH_KABI_REPLACE(_orig, _new);
+
+#define _RH_KABI_REPLACE1(_new) _new;
+#define _RH_KABI_REPLACE2(_new, ...) _new; _RH_KABI_REPLACE1(__VA_ARGS__)
+#define _RH_KABI_REPLACE3(_new, ...) _new; _RH_KABI_REPLACE2(__VA_ARGS__)
+#define _RH_KABI_REPLACE4(_new, ...) _new; _RH_KABI_REPLACE3(__VA_ARGS__)
+#define _RH_KABI_REPLACE5(_new, ...) _new; _RH_KABI_REPLACE4(__VA_ARGS__)
+#define _RH_KABI_REPLACE6(_new, ...) _new; _RH_KABI_REPLACE5(__VA_ARGS__)
+#define _RH_KABI_REPLACE7(_new, ...) _new; _RH_KABI_REPLACE6(__VA_ARGS__)
+#define _RH_KABI_REPLACE8(_new, ...) _new; _RH_KABI_REPLACE7(__VA_ARGS__)
+#define _RH_KABI_REPLACE9(_new, ...) _new; _RH_KABI_REPLACE8(__VA_ARGS__)
+#define _RH_KABI_REPLACE10(_new, ...) _new; _RH_KABI_REPLACE9(__VA_ARGS__)
+#define _RH_KABI_REPLACE11(_new, ...) _new; _RH_KABI_REPLACE10(__VA_ARGS__)
+#define _RH_KABI_REPLACE12(_new, ...) _new; _RH_KABI_REPLACE11(__VA_ARGS__)
+
+#define RH_KABI_REPLACE_SPLIT(_orig, ...) _RH_KABI_REPLACE(_orig, \
+ struct { __PASTE(_RH_KABI_REPLACE, COUNT_ARGS(__VA_ARGS__))(__VA_ARGS__) });
+
+# define RH_KABI_RESERVE(n) _RH_KABI_RESERVE(n);
+
+#define _RH_KABI_USE1(n, _new) _RH_KABI_RESERVE(n), _new
+#define _RH_KABI_USE2(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE1(__VA_ARGS__)
+#define _RH_KABI_USE3(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE2(__VA_ARGS__)
+#define _RH_KABI_USE4(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE3(__VA_ARGS__)
+#define _RH_KABI_USE5(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE4(__VA_ARGS__)
+#define _RH_KABI_USE6(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE5(__VA_ARGS__)
+#define _RH_KABI_USE7(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE6(__VA_ARGS__)
+#define _RH_KABI_USE8(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE7(__VA_ARGS__)
+#define _RH_KABI_USE9(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE8(__VA_ARGS__)
+#define _RH_KABI_USE10(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE9(__VA_ARGS__)
+#define _RH_KABI_USE11(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE10(__VA_ARGS__)
+#define _RH_KABI_USE12(n, ...) _RH_KABI_RESERVE(n); _RH_KABI_USE11(__VA_ARGS__)
+
+#define _RH_KABI_USE(...) _RH_KABI_REPLACE(__VA_ARGS__)
+#define RH_KABI_USE(n, ...) _RH_KABI_USE(__PASTE(_RH_KABI_USE, COUNT_ARGS(__VA_ARGS__))(n, __VA_ARGS__));
+
+# define RH_KABI_USE_SPLIT(n, ...) RH_KABI_REPLACE_SPLIT(_RH_KABI_RESERVE(n), __VA_ARGS__)
+
+# define _RH_KABI_RESERVE(n) unsigned long rh_reserved##n
+
+#define RH_KABI_EXCLUDE(_elem) _RH_KABI_EXCLUDE(_elem);
+
+#define RH_KABI_EXTEND_WITH_SIZE(_new, _size) \
+ RH_KABI_EXTEND(union { \
+ _new; \
+ unsigned long RH_KABI_UNIQUE_ID[_size]; \
+ __RH_KABI_CHECK_SIZE(_new, 8 * (_size)); \
+ })
+
+#define _RH_KABI_AUX_PTR(_struct) \
+ size_t _struct##_size_rh; \
+ _RH_KABI_EXCLUDE(struct _struct##_rh *_rh)
+#define RH_KABI_AUX_PTR(_struct) \
+ _RH_KABI_AUX_PTR(_struct);
+
+#define _RH_KABI_AUX_EMBED(_struct) \
+ size_t _struct##_size_rh; \
+ _RH_KABI_EXCLUDE(struct _struct##_rh _rh)
+#define RH_KABI_AUX_EMBED(_struct) \
+ _RH_KABI_AUX_EMBED(_struct);
+
+#define RH_KABI_USE_AUX_PTR(n1, n2, _struct) \
+ RH_KABI_USE(n1, n2, \
+ struct { RH_KABI_AUX_PTR(_struct) })
+
+#define RH_KABI_AUX_SET_SIZE(_name, _struct) ({ \
+ (_name)->_struct##_size_rh = sizeof(struct _struct##_rh); \
+})
+
+#define RH_KABI_AUX_INIT_SIZE(_struct) \
+ ._struct##_size_rh = sizeof(struct _struct##_rh),
+
+#define RH_KABI_AUX(_ptr, _struct, _field) ({ \
+ size_t __off = offsetof(struct _struct##_rh, _field); \
+ (_ptr)->_struct##_size_rh > __off ? true : false; \
+})
+
+#endif /* _LINUX_RH_KABI_H */
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 6d72772182c8..fe3b072665fb 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -471,6 +471,7 @@ 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)
@@ -1347,6 +1348,10 @@ 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 e9119bf54b1f..e3b57b4898fe 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1645,7 +1645,7 @@ 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/Makefile b/kernel/Makefile
index 56f4ee97f328..2dfcaac71418 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -12,6 +12,7 @@ obj-y = fork.o exec_domain.o panic.o \
notifier.o ksysfs.o cred.o reboot.o \
async.o range.o smpboot.o ucount.o regset.o
+obj-$(CONFIG_RHEL_DIFFERENCES) += rh_messages.o
obj-$(CONFIG_USERMODE_DRIVER) += usermode_driver.o
obj-$(CONFIG_MODULES) += kmod.o
obj-$(CONFIG_MULTIUSER) += groups.o
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index fa4505f9b611..1955a6f41b7b 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -25,6 +25,7 @@
#include <linux/ctype.h>
#include <linux/nospec.h>
#include <linux/audit.h>
+#include <linux/init.h>
#include <uapi/linux/btf.h>
#include <linux/pgtable.h>
#include <linux/bpf_lsm.h>
@@ -51,6 +52,23 @@ static DEFINE_SPINLOCK(map_idr_lock);
static DEFINE_IDR(link_idr);
static DEFINE_SPINLOCK(link_idr_lock);
+static int __init unprivileged_bpf_setup(char *str)
+{
+ unsigned long disabled;
+ if (!kstrtoul(str, 0, &disabled))
+ sysctl_unprivileged_bpf_disabled = !!disabled;
+
+ if (!sysctl_unprivileged_bpf_disabled) {
+ pr_warn("Unprivileged BPF has been enabled "
+ "(unprivileged_bpf_disabled=0 has been supplied "
+ "in boot parameters), tainting the kernel");
+ add_taint(TAINT_UNPRIVILEGED_BPF, LOCKDEP_STILL_OK);
+ }
+
+ return 1;
+}
+__setup("unprivileged_bpf_disabled=", unprivileged_bpf_setup);
+
int sysctl_unprivileged_bpf_disabled __read_mostly =
IS_BUILTIN(CONFIG_BPF_UNPRIV_DEFAULT_OFF) ? 2 : 0;
diff --git a/kernel/module.c b/kernel/module.c
index 46a5c2ed1928..92c2306651ce 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -743,6 +743,7 @@ static struct module_attribute modinfo_##field = { \
MODINFO_ATTR(version);
MODINFO_ATTR(srcversion);
+MODINFO_ATTR(rhelversion);
static char last_unloaded_module[MODULE_NAME_LEN+1];
@@ -1205,6 +1206,7 @@ static struct module_attribute *modinfo_attrs[] = {
&module_uevent,
&modinfo_version,
&modinfo_srcversion,
+ &modinfo_rhelversion,
&modinfo_initstate,
&modinfo_coresize,
&modinfo_initsize,
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/kernel/panic.c b/kernel/panic.c
index 55b50e052ec3..8b7955251793 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -385,6 +385,20 @@ const struct taint_flag taint_flags[TAINT_FLAGS_COUNT] = {
[ TAINT_LIVEPATCH ] = { 'K', ' ', true },
[ TAINT_AUX ] = { 'X', ' ', true },
[ TAINT_RANDSTRUCT ] = { 'T', ' ', true },
+ [ TAINT_18 ] = { '?', '-', false },
+ [ TAINT_19 ] = { '?', '-', false },
+ [ TAINT_20 ] = { '?', '-', false },
+ [ TAINT_21 ] = { '?', '-', false },
+ [ TAINT_22 ] = { '?', '-', false },
+ [ TAINT_23 ] = { '?', '-', false },
+ [ TAINT_24 ] = { '?', '-', false },
+ [ TAINT_25 ] = { '?', '-', false },
+ [ TAINT_26 ] = { '?', '-', false },
+ [ TAINT_SUPPORT_REMOVED ] = { 'h', ' ', false },
+ [ TAINT_RESERVED28 ] = { '?', '-', false },
+ [ TAINT_RESERVED29 ] = { '?', '-', false },
+ [ TAINT_RESERVED30 ] = { '?', '-', false },
+ [ TAINT_UNPRIVILEGED_BPF ] = { 'u', ' ', false },
};
/**
diff --git a/kernel/rh_messages.c b/kernel/rh_messages.c
new file mode 100644
index 000000000000..345a979cd0e4
--- /dev/null
+++ b/kernel/rh_messages.c
@@ -0,0 +1,179 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#define DEV_DESC_LEN 256
+/*
+ * The following functions are used by Red Hat to indicate to users that
+ * hardware and drivers are unsupported, or have limited support in RHEL major
+ * and minor releases. These functions output loud warning messages to the end
+ * user and should be USED WITH CAUTION.
+ *
+ * Any use of these functions _MUST_ be documented in the RHEL Release Notes,
+ * and have approval of management.
+ *
+ * Generally, the process of disabling a driver or device in RHEL requires the
+ * driver or device to be marked as 'deprecated' in all existing releases, and
+ * then either 'unmaintained' or 'disabled' in a future release.
+ *
+ * In general, deprecated and unmaintained drivers continue to receive security
+ * related fixes until they are disabled.
+ */
+
+/**
+ * mark_hardware_unmaintained() - Mark hardware as unmaintained.
+ * @driver_name: driver name
+ * @fmt: format for device description
+ * @...: args for device description
+ *
+ * Called to notify users that the device will no longer be tested on a routine
+ * basis and driver code associated with this device is no longer being updated.
+ * Red Hat may fix security-related and critical issues. Support for this device
+ * will be disabled in a future major release and users deploying this device
+ * should plan to replace the device in production systems.
+ *
+ * This function should be used when the driver's usage can be tied to a
+ * specific hardware device. For example, a network device driver loading on a
+ * specific device that is no longer maintained by the manufacturer.
+ */
+void mark_hardware_unmaintained(const char *driver_name, char *fmt, ...)
+{
+ char device_description[DEV_DESC_LEN];
+ va_list args;
+
+ va_start(args, fmt);
+ vsnprintf(device_description, DEV_DESC_LEN, fmt, args);
+ pr_crit("Warning: Unmaintained hardware is detected: %s:%s\n", driver_name,
+ device_description);
+ va_end(args);
+}
+EXPORT_SYMBOL(mark_hardware_unmaintained);
+
+/**
+ * mark_driver_unmaintained() - Mark a driver as unmaintained.
+ * @driver_name: driver name
+ *
+ * Called to notify users that a driver will no longer be tested on a routine
+ * basis and the driver code is no longer being updated. Red Hat may fix
+ * security-related and critical issues. Support for this driver will be
+ * disabled in a future major release, and users should replace any affected
+ * devices in production systems.
+ *
+ * This function should be used when a driver's usage cannot be tied to a
+ * specific hardware device. For example, a network bonding driver or a higher
+ * level storage layer driver that is no longer maintained upstream.
+ */
+void mark_driver_unmaintained(const char *driver_name)
+{
+ pr_crit("Warning: Unmaintained driver is detected: %s\n", driver_name);
+}
+EXPORT_SYMBOL(mark_driver_unmaintained);
+
+/**
+ * mark_hardware_deprecated() - Mark hardware as deprecated.
+ * @driver_name: driver name
+ * @fmt: format for device description
+ * @...: args for device description
+ *
+ * Called to notify users that support for the device is planned to be
+ * unmaintained in a future major release, and will eventually be disabled in a
+ * future major release. This device should not be used in new production
+ * environments and users should replace the device in production systems.
+ *
+ * This function should be used when the driver's usage can be tied to a
+ * specific hardware device. For example, a network device driver loading on a
+ * specific device that is no longer maintained by the manufacturer.
+ */
+void mark_hardware_deprecated(const char *driver_name, char *fmt, ...)
+{
+ char device_description[DEV_DESC_LEN];
+ va_list args;
+
+ va_start(args, fmt);
+ vsnprintf(device_description, DEV_DESC_LEN, fmt, args);
+ pr_crit("Warning: Deprecated Hardware is detected: %s:%s will not be maintained in a future major release and may be disabled\n",
+ driver_name, device_description);
+ va_end(args);
+}
+EXPORT_SYMBOL(mark_hardware_deprecated);
+
+/**
+ * mark_driver_deprecated() - Mark a driver as deprecated.
+ * @driver_name: driver name
+ *
+ * Called to notify users that support for this driver is planned to be
+ * unmaintained in a future major release, and will eventually be disabled in a
+ * future major release. This driver should not be used in new production
+ * environments and users should replace any affected devices in production
+ * systems.
+ *
+ * This function should be used when a driver's usage cannot be tied to a
+ * specific hardware device. For example, a network bonding driver or a higher
+ * level storage layer driver that is no longer maintained upstream.
+ */
+void mark_driver_deprecated(const char *driver_name)
+{
+ pr_crit("Warning: Deprecated Driver is detected: %s will not be maintained in a future major release and may be disabled\n",
+ driver_name);
+}
+EXPORT_SYMBOL(mark_driver_deprecated);
+
+/**
+ * mark_hardware_disabled() - Mark a driver as removed.
+ * @driver_name: driver name
+ * @fmt: format for device description
+ * @...: args for device description
+ *
+ * Called to notify users that a device's support has been completely disabled
+ * and no future support updates will occur. This device cannot be used in new
+ * production environments, and users must replace the device in production
+ * systems.
+ *
+ * This function should be used when the driver's usage can be tied to a
+ * specific hardware device. For example, a network device driver loading on a
+ * specific device that is no longer maintained by the manufacturer.
+ */
+void mark_hardware_disabled(const char *driver_name, char *fmt, ...)
+{
+ char device_description[DEV_DESC_LEN];
+ va_list args;
+
+ va_start(args, fmt);
+ vsnprintf(device_description, DEV_DESC_LEN, fmt, args);
+ pr_crit("Warning: Disabled Hardware is detected: %s:%s is no longer enabled in this release.\n",
+ driver_name, device_description);
+ va_end(args);
+}
+EXPORT_SYMBOL(mark_hardware_disabled);
+
+/**
+ * mark_tech_preview() - Mark driver or kernel subsystem as 'Tech Preview'
+ * @msg: Driver or kernel subsystem name
+ *
+ * Called to minimize the support status of a new driver. This does TAINT the
+ * kernel. Calling this function indicates that the driver or subsystem has
+ * had limited testing and is not marked for full support within this RHEL
+ * minor release. The next RHEL minor release may contain full support for
+ * this driver. Red Hat does not guarantee that bugs reported against this
+ * driver or subsystem will be resolved.
+ */
+void mark_tech_preview(const char *msg, struct module *mod)
+{
+ const char *str = NULL;
+
+ if (msg)
+ str = msg;
+#ifdef CONFIG_MODULES
+ else if (mod && mod->name)
+ str = mod->name;
+#endif
+
+ pr_warn("TECH PREVIEW: %s may not be fully supported.\n"
+ "Please review provided documentation for limitations.\n",
+ (str ? str : "kernel"));
+ add_taint(TAINT_AUX, LOCKDEP_STILL_OK);
+#ifdef CONFIG_MODULES
+ if (mod)
+ mod->taints |= (1U << TAINT_AUX);
+#endif
+}
+EXPORT_SYMBOL(mark_tech_preview);
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 5ae443b2882e..4b929f4cb77a 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -195,6 +195,11 @@ static int bpf_unpriv_handler(struct ctl_table *table, int write,
if (write && !ret) {
if (locked_state && unpriv_enable != 1)
return -EPERM;
+ if (!unpriv_enable) {
+ pr_warn("Unprivileged BPF has been enabled, "
+ "tainting the kernel");
+ add_taint(TAINT_UNPRIVILEGED_BPF, LOCKDEP_STILL_OK);
+ }
*(int *)table->data = unpriv_enable;
}
return ret;
diff --git a/mm/cma.c b/mm/cma.c
index bc9ca8f3c487..9fa9a485eb3a 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/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 6bfa33217914..92d936f34b27 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -21,6 +21,7 @@
#include <errno.h>
#include "modpost.h"
#include "../../include/linux/license.h"
+#include "../../include/generated/uapi/linux/version.h"
/* Are we using CONFIG_MODVERSIONS? */
static int modversions = 0;
@@ -2366,6 +2367,12 @@ static void write_buf(struct buffer *b, const char *fname)
}
}
+static void add_rhelversion(struct buffer *b, struct module *mod)
+{
+ buf_printf(b, "MODULE_INFO(rhelversion, \"%d.%d\");\n", RHEL_MAJOR,
+ RHEL_MINOR);
+}
+
static void write_if_changed(struct buffer *b, const char *fname)
{
char *tmp;
@@ -2595,6 +2602,7 @@ int main(int argc, char **argv)
add_depends(&buf, mod);
add_moddevtable(&buf, mod);
add_srcversion(&buf, mod);
+ add_rhelversion(&buf, mod);
sprintf(fname, "%s.mod.c", mod->name);
write_if_changed(&buf, fname);
diff --git a/scripts/tags.sh b/scripts/tags.sh
index 16d475b3e203..4e333f14b84e 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -16,6 +16,8 @@ fi
ignore="$(echo "$RCS_FIND_IGNORE" | sed 's|\\||g' )"
# tags and cscope files should also ignore MODVERSION *.mod.c files
ignore="$ignore ( -name *.mod.c ) -prune -o"
+# RHEL tags and cscope should also ignore redhat/rpm
+ignore="$ignore ( -path redhat/rpm ) -prune -o"
# Use make KBUILD_ABS_SRCTREE=1 {tags|cscope}
# to force full paths for a non-O= build
diff --git a/security/integrity/platform_certs/load_uefi.c b/security/integrity/platform_certs/load_uefi.c
index 08b6d12f99b4..61b596236d53 100644
--- a/security/integrity/platform_certs/load_uefi.c
+++ b/security/integrity/platform_certs/load_uefi.c
@@ -47,7 +47,8 @@ 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;
}
@@ -58,7 +59,8 @@ 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 22261d79f333..20336365f864 100644
--- a/security/security.c
+++ b/security/security.c
@@ -2603,6 +2603,12 @@ 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/lib/subcmd/subcmd-util.h b/tools/lib/subcmd/subcmd-util.h
index 794a375dad36..7009fc176636 100644
--- a/tools/lib/subcmd/subcmd-util.h
+++ b/tools/lib/subcmd/subcmd-util.h
@@ -49,13 +49,12 @@ static NORETURN inline void die(const char *err, ...)
static inline void *xrealloc(void *ptr, size_t size)
{
- void *ret = realloc(ptr, size);
- if (!ret && !size)
- ret = realloc(ptr, 1);
+ void *ret;
+ if (!size)
+ size = 1;
+ ret = realloc(ptr, size);
if (!ret) {
ret = realloc(ptr, size);
- if (!ret && !size)
- ret = realloc(ptr, 1);
if (!ret)
die("Out of memory, realloc failed");
}
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