AcoSail/kernel_optimize_test
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kernel_optimize_test/drivers
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Cornelia Huck 68a6199cf3 virtio/s390: implement virtio-ccw revision 2 correctly 
commit 182f709c5cff683e6732d04c78e328de0532284f upstream.

CCW_CMD_READ_STATUS was introduced with revision 2 of virtio-ccw,
and drivers should only rely on it being implemented when they
negotiated at least that revision with the device.

However, virtio_ccw_get_status() issued READ_STATUS for any
device operating at least at revision 1. If the device accepts
READ_STATUS regardless of the negotiated revision (which some
implementations like QEMU do, even though the spec currently does
not allow it), everything works as intended. While a device
rejecting the command should also be handled gracefully, we will
not be able to see any changes the device makes to the status,
such as setting NEEDS_RESET or setting the status to zero after
a completed reset.

We negotiated the revision to at most 1, as we never bumped the
maximum revision; let's do that now and properly send READ_STATUS
only if we are operating at least at revision 2.

Cc: stable@vger.kernel.org
Fixes: 7d3ce5ab94 ("virtio/s390: support READ_STATUS command for virtio-ccw")
Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Link: https://lore.kernel.org/r/20210216110645.1087321-1-cohuck@redhat.com
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 11:38:42 +01:00
..
accessibility speakup: fix uninitialized flush_lock 2020-12-30 11:53:44 +01:00
acpi ACPI: configfs: add missing check after configfs_register_default_group() 2021-03-04 11:38:22 +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 regmap: sdw: use _no_pm functions in regmap_read/write 2021-03-04 11:38:15 +01:00
bcma
block floppy: reintroduce O_NDELAY fix 2021-03-04 11:38:33 +01:00
bluetooth tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer 2021-03-04 11:37:36 +01:00
bus bus: fsl-mc: fix error return code in fsl_mc_object_allocate() 2020-12-30 11:53:46 +01:00
cdrom
char KEYS: trusted: Reserve TPM for seal and unseal operations 2021-03-04 11:38:29 +01:00
clk clk: aspeed: Fix APLL calculate formula from ast2600-A2 2021-03-04 11:38:06 +01:00
clocksource clocksource/drivers/mxs_timer: Add missing semicolon when DEBUG is defined 2021-03-04 11:37:57 +01:00
connector
counter counter:ti-eqep: remove floor 2021-01-27 11:55:12 +01:00
cpufreq cpufreq: intel_pstate: Get per-CPU max freq via MSR_HWP_CAPABILITIES if available 2021-03-04 11:38:42 +01:00
cpuidle
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
devfreq
dio
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: Fix PCI component registration 2020-12-30 11:54:11 +01:00
eisa
extcon extcon: max77693: Fix modalias string 2020-12-30 11:53:49 +01:00
firewire
firmware firmware: arm_scmi: Fix call site of scmi_notification_exit 2021-03-04 11:37:23 +01:00
fpga
fsi fsi: Aspeed: Add mutex to protect HW access 2020-12-30 11:53:46 +01:00
gnss
gpio gpio: pcf857x: Fix missing first interrupt 2021-03-04 11:38:40 +01:00
gpu kcmp: Support selection of SYS_kcmp without CHECKPOINT_RESTORE 2021-03-04 11:38:41 +01:00
greybus
hid HID: wacom: Ignore attempts to overwrite the touch_max value from HID 2021-03-04 11:38:23 +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
hwtracing coresight: etm4x: Handle accesses to TRCSTALLCTLR 2021-03-04 11:38:37 +01:00
i2c i2c: exynos5: Preserve high speed master code 2021-03-04 11:38:20 +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
iio iio: adc: ti_am335x_adc: remove omitted iio_kfifo_free() 2021-01-27 11:55:12 +01:00
infiniband RDMA/rtrs-srv: Do not pass a valid pointer to PTR_ERR() 2021-03-04 11:38:09 +01:00
input Input: i8042 - add ASUS Zenbook Flip to noselftest list 2021-03-04 11:38:23 +01:00
interconnect interconnect: imx8mq: Use icc_sync_state 2021-01-27 11:55:29 +01:00
iommu iommu/arm-smmu-qcom: Fix mask extraction for bootloader programmed SMRs 2021-03-04 11:38:35 +01:00
ipack
irqchip irqchip/imx: IMX_INTMUX should not default to y, unconditionally 2021-03-04 11:37:51 +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
md bcache: Move journal work to new flush wq 2021-03-04 11:38:26 +01:00
media media: smipcie: fix interrupt handling and IR timeout 2021-03-04 11:38:34 +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
mfd mfd: gateworks-gsc: Fix interrupt type 2021-03-04 11:38:40 +01:00
misc mei: me: add adler lake point LP DID 2021-03-04 11:38:40 +01:00
mmc mmc: sdhci-pci-o2micro: Bug fix for SDR104 HW tuning failure 2021-03-04 11:38:39 +01:00
most
mtd mtd: spi-nor: hisi-sfc: Put child node np on error path 2021-03-04 11:38:37 +01:00
mux
net r8169: fix jumbo packet handling on RTL8168e 2021-03-04 11:38:19 +01:00
nfc nfc: s3fwrn5: Release the nfc firmware 2020-12-30 11:53:53 +01:00
ntb
nubus
nvdimm libnvdimm/dimm: Avoid race between probe and available_slots_show() 2021-02-10 09:29:17 +01:00
nvme nvmet: set status to 0 in case for invalid nsid 2021-03-04 11:37:50 +01:00
nvmem nvmem: qcom-spmi-sdam: Fix uninitialized pdev pointer 2021-03-04 11:38:39 +01:00
of of/fdt: Make sure no-map does not remove already reserved regions 2021-03-04 11:37:56 +01:00
opp opp: Correct debug message in _opp_add_static_v2() 2021-03-04 11:37:27 +01:00
oprofile
parisc
parport
pci PCI: rockchip: Make 'ep-gpios' DT property optional 2021-03-04 11:38:18 +01:00
pcmcia
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/chrome: cros_ec_proto: Add LID and BATTERY to default mask 2021-03-04 11:37:58 +01:00
pnp
power power: supply: smb347-charger: Fix interrupt usage if interrupt is unavailable 2021-03-04 11:37:59 +01:00
powercap
pps
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
ras
regulator regulator: bd718x7, bd71828, Fix dvs voltage levels 2021-03-04 11:38:07 +01:00
remoteproc remoteproc/mediatek: acknowledge watchdog IRQ after handled 2021-03-04 11:38:14 +01:00
reset
rpmsg
rtc rtc: zynqmp: depend on HAS_IOMEM 2021-03-04 11:38:03 +01:00
s390 virtio/s390: implement virtio-ccw revision 2 correctly 2021-03-04 11:38:42 +01:00
sbus
scsi scsi: sd: Fix Opal support 2021-03-04 11:38:22 +01:00
sfi
sh
siox
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: Skip zero-length transfers in spi_transfer_one_message() 2021-03-04 11:38:07 +01:00
spmi spmi: spmi-pmic-arb: Fix hw_irq overflow 2021-03-04 11:38:40 +01:00
ssb
staging staging: rtl8188eu: Add Edimax EW-7811UN V2 to device table 2021-03-04 11:38:33 +01:00
target cxgb4/chtls/cxgbit: Keeping the max ofld immediate data size same in cxgb4 and ulds 2021-03-04 11:37:34 +01:00
tc
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: Fix possible NULL pointer dereference in tb_acpi_add_link() 2021-02-10 09:29:15 +01:00
tty tty: implement read_iter 2021-03-04 11:37:36 +01:00
uio
usb USB: serial: mos7720: fix error code in mos7720_write() 2021-03-04 11:38:24 +01:00
vdpa vdpa/mlx5: fix param validation in mlx5_vdpa_get_config() 2021-03-04 11:37:17 +01:00
vfio vfio/type1: Use follow_pte() 2021-03-04 11:38:17 +01:00
vhost vhost_net: fix ubuf refcount incorrectly when sendmsg fails 2021-01-12 20:18:13 +01:00
video fbdev: aty: SPARC64 requires FB_ATY_CT 2021-03-04 11:37:36 +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
vlynq
vme
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-scsiback: don't "handle" error by BUG() 2021-02-23 15:53:24 +01:00
zorro
Kconfig
Makefile