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Shawn Guo e4ea2a28d0 efivars: respect EFI_UNSUPPORTED return from firmware 
commit 483028edac upstream.

As per UEFI spec 2.8B section 8.2, EFI_UNSUPPORTED may be returned by
EFI variable runtime services if no variable storage is supported by
firmware.  In this case, there is no point for kernel to continue
efivars initialization.  That said, efivar_init() should fail by
returning an error code, so that efivarfs will not be mounted on
/sys/firmware/efi/efivars at all.  Otherwise, user space like efibootmgr
will be confused by the EFIVARFS_MAGIC seen there, while EFI variable
calls cannot be made successfully.

Cc: <stable@vger.kernel.org> # v5.10+
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2021-03-25 09:04:17 +01:00
..
accessibility speakup: fix uninitialized flush_lock 2020-12-30 11:53:44 +01:00
acpi ACPI: video: Add DMI quirk for GIGABYTE GB-BXBT-2807 2021-03-11 14:17:25 +01:00
amba amba: Fix resource leak for drivers without .remove 2021-03-04 11:38:02 +01:00
android binder: add flag to clear buffer on txn complete 2020-12-30 11:54:09 +01:00
ata ata: ahci_brcm: Add back regulators management 2021-03-04 11:37:45 +01:00
atm atm: idt77252: call pci_disable_device() on error path 2021-01-12 20:18:09 +01:00
auxdisplay auxdisplay: ht16k33: Fix refresh rate handling 2021-03-04 11:38:00 +01:00
base Revert "PM: runtime: Update device status before letting suppliers suspend" 2021-03-25 09:04:05 +01:00
bcma bcma: use semicolons rather than commas to separate statements 2020-10-01 16:23:50 +03:00
block zram: fix return value on writeback_store 2021-03-17 17:06:34 +01:00
bluetooth Bluetooth: btqca: Add valid le states quirk 2021-03-11 14:17:22 +01:00
bus bus: ti-sysc: Implement GPMC debug quirk to drop platform data 2021-03-11 14:17:23 +01:00
cdrom gdrom: use bdev_check_media_change 2020-09-10 09:32:31 -06:00
char tpm, tpm_tis: Decorate tpm_get_timeouts() with request_locality() 2021-03-09 11:11:10 +01:00
clk clk: qcom: gpucc-msm8998: Add resets, cxc, fix flags on gpu_gx_gdsc 2021-03-17 17:06:26 +01:00
clocksource clocksource/drivers/mxs_timer: Add missing semicolon when DEBUG is defined 2021-03-04 11:37:57 +01:00
connector connector: simplify the return expression of cn_add_callback() 2020-09-21 13:48:29 -07:00
counter counter: stm32-timer-cnt: fix ceiling miss-alignment with reload register 2021-03-25 09:04:16 +01:00
cpufreq cpufreq: qcom-hw: Fix return value check in qcom_cpufreq_hw_cpu_init() 2021-03-17 17:06:33 +01:00
cpuidle cpuidle: tegra: Annotate tegra_pm_set_cpu_in_lp2() with RCU_NONIDLE 2020-11-16 13:24:32 +01:00
crypto crypto: sun4i-ss - initialize need_fallback 2021-03-04 11:38:32 +01:00
dax device-dax: Fix default return code of range_parse() 2021-03-04 11:38:15 +01:00
dca dca: Use PTR_ERR_OR_ZERO() to simplify code 2020-05-15 16:25:20 +02:00
devfreq PM / devfreq: tegra30: Improve initial hardware resetting 2020-09-29 17:50:10 +09:00
dio maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00
dma dmaengine: idxd: set DMA channel to be private 2021-03-04 11:37:57 +01:00
dma-buf dmabuf: fix use-after-free of dmabuf's file->f_inode 2021-01-12 20:18:24 +01:00
edac EDAC/amd64: Do not load on family 0x15, model 0x13 2021-03-07 12:34:08 +01:00
eisa treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
extcon extcon: max77693: Fix modalias string 2020-12-30 11:53:49 +01:00
firewire firewire-ohci: use dma_alloc_pages 2020-09-25 06:20:48 +02:00
firmware efivars: respect EFI_UNSUPPORTED return from firmware 2021-03-25 09:04:17 +01:00
fpga fpga: Specify HAS_IOMEM dependency for FPGA_DFL 2020-12-01 18:46:24 +01:00
fsi fsi: Aspeed: Add mutex to protect HW access 2020-12-30 11:53:46 +01:00
gnss treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
gpio gpiolib: Assign fwnode to parent's if no primary one provided 2021-03-25 09:04:09 +01:00
gpu drm/amd/pm: fulfill the Polaris implementation for get_clock_by_type_with_latency() 2021-03-25 09:04:13 +01:00
greybus drivers/greybus: Use kobj_to_dev() 2020-09-04 18:06:01 +02:00
hid HID: logitech-dj: add support for the new lightspeed connection iteration 2021-03-17 17:06:24 +01:00
hsi HSI: Fix PM usage counter unbalance in ssi_hw_init 2021-03-04 11:37:52 +01:00
hv Drivers: hv: vmbus: Avoid use-after-free in vmbus_onoffer_rescind() 2021-03-04 11:37:46 +01:00
hwmon hwmon: (dell-smm) Add XPS 15 L502X to fan control blacklist 2021-02-26 10:13:00 +01:00
hwspinlock hwspinlock: qcom: Allow mmio usage in addition to syscon 2020-07-13 22:29:28 -07:00
hwtracing coresight: etm4x: Handle accesses to TRCSTALLCTLR 2021-03-04 11:38:37 +01:00
i2c i2c: rcar: optimize cacheline to minimize HW race condition 2021-03-17 17:06:22 +01:00
i3c i3c master: fix missing destroy_workqueue() on error in i3c_master_register 2021-01-06 14:56:53 +01:00
ide ide/falconide: Fix module unload 2021-03-04 11:38:21 +01:00
idle intel_idle: Build fix 2020-12-03 10:00:23 +01:00
iio iio: hid-sensor-temperature: Fix issues of timestamp channel 2021-03-25 09:04:16 +01:00
infiniband RDMA/mlx5: Allow creating all QPs even when non RDMA profile is used 2021-03-25 09:04:12 +01:00
input Input: applespi - don't wait for responses to commands indefinitely. 2021-03-17 17:06:24 +01:00
interconnect interconnect: imx8mq: Use icc_sync_state 2021-01-27 11:55:29 +01:00
iommu iommu/amd: Fix performance counter initialization 2021-03-17 17:06:24 +01:00
ipack treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
irqchip irqchip/loongson-pch-msi: Use bitmap_zalloc() to allocate bitmap 2021-03-04 11:38:42 +01:00
isdn misdn: dsp: select CONFIG_BITREVERSE 2021-01-19 18:27:26 +01:00
leds leds: trigger: fix potential deadlock with libata 2021-02-03 23:28:41 +01:00
lightnvm lightnvm: fix memory leak when submit fails 2021-01-27 11:55:22 +01:00
macintosh macintosh/adb-iop: Use big-endian autopoll mask 2021-03-04 11:37:42 +01:00
mailbox mailbox: sprd: correct definition of SPRD_OUTBOX_FIFO_FULL 2021-03-04 11:38:15 +01:00
mcb drivers: mcb: use symbol namespaces 2019-11-03 19:54:53 +01:00
md dm verity: fix FEC for RS roots unaligned to block size 2021-03-09 11:11:12 +01:00
media media: rc: compile rc-cec.c into rc-core 2021-03-17 17:06:20 +01:00
memory memory: ti-aemif: Drop child node when jumping out loop 2021-03-04 11:37:25 +01:00
memstick memstick: r592: Fix error return in r592_probe() 2020-12-30 11:53:34 +01:00
message scsi: mptfusion: Fix null pointer dereferences in mptscsih_remove() 2020-10-26 16:57:18 -04:00
mfd mfd: gateworks-gsc: Fix interrupt type 2021-03-04 11:38:40 +01:00
misc misc: fastrpc: restrict user apps from sending kernel RPC messages 2021-03-17 17:06:31 +01:00
mmc mmc: cqhci: Fix random crash when remove mmc module/card 2021-03-17 17:06:28 +01:00
most drivers: most: add character device interface driver 2020-09-07 15:16:26 +02:00
mtd mtd: spi-nor: hisi-sfc: Put child node np on error path 2021-03-04 11:38:37 +01:00
mux treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
net net: bonding: fix error return code of bond_neigh_init() 2021-03-25 09:04:13 +01:00
nfc nfc: s3fwrn5: Release the nfc firmware 2020-12-30 11:53:53 +01:00
ntb Bug fixes for v5.10 2020-10-25 11:12:31 -07:00
nubus nubus: Remove cast to void pointer 2019-10-21 09:08:15 +02:00
nvdimm libnvdimm/dimm: Avoid race between probe and available_slots_show() 2021-02-10 09:29:17 +01:00
nvme nvme-rdma: fix possible hang when failing to set io queues 2021-03-25 09:04:10 +01:00
nvmem nvmem: qcom-spmi-sdam: Fix uninitialized pdev pointer 2021-03-04 11:38:39 +01:00
of of: unittest: Fix build on architectures without CONFIG_OF_ADDRESS 2021-03-09 11:11:15 +01:00
opp opp: Correct debug message in _opp_add_static_v2() 2021-03-04 11:37:27 +01:00
oprofile module: Fix up module_notifier return values 2020-09-01 09:58:03 +02:00
parisc dma-mapping: split <linux/dma-mapping.h> 2020-10-06 07:07:03 +02:00
parport treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
pci PCI: rpadlpar: Fix potential drc_name corruption in store functions 2021-03-25 09:04:16 +01:00
pcmcia dma-mapping: remove DMA_MASK_NONE 2020-09-25 06:12:15 +02:00
perf perf/arm-cmn: Move IRQs when migrating context 2021-03-04 11:37:44 +01:00
phy phy: lantiq: rcu-usb2: wait after clock enable 2021-03-04 11:38:24 +01:00
pinctrl pinctrl: qcom: Don't clear pending interrupts when enabling 2021-01-27 11:55:27 +01:00
platform Platform: OLPC: Fix probe error handling 2021-03-17 17:06:23 +01:00
pnp PNP: fix kernel-doc markups 2020-10-27 19:23:04 +01:00
power power: supply: smb347-charger: Fix interrupt usage if interrupt is unavailable 2021-03-04 11:37:59 +01:00
powercap Merge branch 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2020-11-10 10:02:31 -08:00
pps treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
ps3 powerpc/ps3: use dma_mapping_error() 2020-12-30 11:53:53 +01:00
ptp phy: dp83640: select CONFIG_CRC32 2021-01-17 14:17:02 +01:00
pwm pwm: iqs620a: Fix overflow and optimize calculations 2021-03-04 11:38:17 +01:00
rapidio rapidio: fix the missed put_device() for rio_mport_add_riodev 2020-10-16 11:11:22 -07:00
ras RAS/CEC: Convert to DEFINE_SHOW_ATTRIBUTE() 2020-09-25 19:05:31 +02:00
regulator regulator: pca9450: Clear PRESET_EN bit to fix BUCK1/2/3 voltage setting 2021-03-25 09:04:14 +01:00
remoteproc remoteproc/mediatek: Fix kernel test robot warning 2021-03-07 12:34:15 +01:00
reset ARM: SoC-related driver updates 2020-10-24 10:39:22 -07:00
rpmsg rpmsg updates for 5.10 2020-10-22 12:58:21 -07:00
rtc rtc: zynqmp: depend on HAS_IOMEM 2021-03-04 11:38:03 +01:00
s390 s390/qeth: schedule TX NAPI on QAOB completion 2021-03-25 09:04:13 +01:00
sbus treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
scsi scsi: isci: Pass gfp_t flags in isci_port_bc_change_received() 2021-03-25 09:04:12 +01:00
sfi treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
sh iomap: constify ioreadX() iomem argument (as in generic implementation) 2020-08-14 19:56:57 -07:00
siox siox: Use the correct style for SPDX License Identifier 2020-01-14 21:46:53 +01:00
slimbus slimbus: qcom: fix potential NULL dereference in qcom_slim_prg_slew() 2020-12-30 11:53:47 +01:00
soc soc: samsung: exynos-asv: handle reading revision register error 2021-03-04 11:38:32 +01:00
soundwire soundwire: intel: fix possible crash when no device is detected 2021-03-04 11:38:22 +01:00
spi spi: cadence: set cqspi to the driver_data field of struct device 2021-03-25 09:04:04 +01:00
spmi spmi: spmi-pmic-arb: Fix hw_irq overflow 2021-03-04 11:38:40 +01:00
ssb ssb: Remove meaningless jump label to simplify the code 2020-09-21 16:01:35 +03:00
staging media: cedrus: h264: Support profile controls 2021-03-25 09:04:13 +01:00
target scsi: target: core: Prevent underflow for service actions 2021-03-17 17:06:26 +01:00
tc The main MIPS changes for 5.6: 2020-01-31 11:28:31 -08:00
tee optee: simplify i2c access 2021-03-04 11:37:28 +01:00
thermal thermal: cpufreq_cooling: freq_qos_update_request() returns < 0 on error 2021-03-04 11:38:41 +01:00
thunderbolt thunderbolt: Increase runtime PM reference count on DP tunnel discovery 2021-03-25 09:04:15 +01:00
tty serial: stm32: fix DMA initialization error handling 2021-03-25 09:04:10 +01:00
uio uio: Fix use-after-free in uio_unregister_device() 2020-11-09 18:54:30 +01:00
usb usb: dwc3: gadget: Prevent EP queuing while stopping transfers 2021-03-25 09:04:15 +01:00
vdpa vdpa/mlx5: fix param validation in mlx5_vdpa_get_config() 2021-03-04 11:37:17 +01:00
vfio vfio: IOMMU_API should be selected 2021-03-25 09:04:08 +01:00
vhost vhost_vdpa: fix the missing irq_bypass_unregister_producer() invocation 2021-03-25 09:04:08 +01:00
video udlfb: Fix memory leak in dlfb_usb_probe 2021-03-07 12:34:04 +01:00
virt virt: vbox: Do not use wait_event_interruptible when called from kernel context 2021-03-04 11:37:18 +01:00
virtio virtio_ring: Fix two use after free bugs 2020-12-30 11:54:00 +01:00
visorbus treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
vlynq treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102 2019-05-24 17:39:00 +02:00
vme treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
w1 w1: w1_therm: Fix conversion result for negative temperatures 2021-03-04 11:37:18 +01:00
watchdog watchdog: mei_wdt: request stop on unregister 2021-03-04 11:38:36 +01:00
xen xen/events: avoid handling the same event on two cpus at the same time 2021-03-17 17:06:37 +01:00
zorro zorro: Fix address space collision message with RAM expansion boards 2020-08-26 13:26:52 +02:00
Kconfig virtio: fixes, vdpa 2020-04-08 10:51:53 -07:00
Makefile vdpa: mlx5: fix vdpa/vhost dependencies 2020-12-02 04:09:56 -05:00