This bug was fixed in the package linux - 4.15.0-167.175
---------------
linux (4.15.0-167.175) bionic; urgency=medium
* bionic/linux: 4.15.0-167.175 -proposed tracker (LP: #1955276)
* hisi_sas driver may oops in prep_ssp_v3_hw() (LP: #1953386)
- scsi: hisi_sas: Fix to only call scsi_get_prot_op() for non-NULL scsi_cmnd
* Bionic update: upstream stable patchset 2021-12-13 (LP: #1954703)
- xhci: Fix USB 3.1 enumeration issues by increasing roothub power-on-good
delay
- binder: use euid from cred instead of using task
- Input: elantench - fix misreporting trackpoint coordinates
- Input: i8042 - Add quirk for Fujitsu Lifebook T725
- libata: fix read log timeout value
- ocfs2: fix data corruption on truncate
- mmc: dw_mmc: Dont wait for DRTO on Write RSP error
- parisc: Fix ptrace check on syscall return
- tpm: Check for integer overflow in tpm2_map_response_body()
- media: ite-cir: IR receiver stop working after receive overflow
- ALSA: ua101: fix division by zero at probe
- ALSA: 6fire: fix control and bulk message timeouts
- ALSA: line6: fix control and interrupt message timeouts
- ALSA: synth: missing check for possible NULL after the call to kstrdup
- ALSA: timer: Fix use-after-free problem
- ALSA: timer: Unconditionally unlink slave instances, too
- x86/irq: Ensure PI wakeup handler is unregistered before module unload
- cavium: Return negative value when pci_alloc_irq_vectors() fails
- scsi: qla2xxx: Fix unmap of already freed sgl
- cavium: Fix return values of the probe function
- sfc: Don't use netif_info before net_device setup
- hyperv/vmbus: include linux/bitops.h
- mmc: winbond: don't build on M68K
- bpf: Prevent increasing bpf_jit_limit above max
- xen/netfront: stop tx queues during live migration
- spi: spl022: fix Microwire full duplex mode
- watchdog: Fix OMAP watchdog early handling
- vmxnet3: do not stop tx queues after netif_device_detach()
- btrfs: fix lost error handling when replaying directory deletes
- hwmon: (pmbus/lm25066) Add offset coefficients
- regulator: s5m8767: do not use reset value as DVS voltage if GPIO DVS is
disabled
- regulator: dt-bindings: samsung,s5m8767: correct
s5m8767,pmic-buck-default-
dvs-idx property
- EDAC/sb_edac: Fix top-of-high-memory value for Broadwell/Haswell
- mwifiex: fix division by zero in fw download path
- ath6kl: fix division by zero in send path
- ath6kl: fix control-message timeout
- ath10k: fix control-message timeout
- ath10k: fix division by zero in send path
- PCI: Mark Atheros QCA6174 to avoid bus reset
- rtl8187: fix control-message timeouts
- evm: mark evm_fixmode as __ro_after_init
- wcn36xx: Fix HT40 capability for 2Ghz band
- mwifiex: Read a PCI register after writing the TX ring write pointer
- libata: fix checking of DMA state
- wcn36xx: handle connection loss indication
- RDMA/qedr: Fix NULL deref for query_qp on the GSI QP
- signal: Remove the bogus sigkill_pending in ptrace_stop
- signal/mips: Update (_save|_restore)_fp_context to fail with -EFAULT
- power: supply: max17042_battery: Prevent int underflow in
set_soc_threshold
- power: supply: max17042_battery: use VFSOC for capacity when no rsns
- powerpc/85xx: Fix oops when mpc85xx_smp_guts_ids node cannot be found
- serial: core: Fix initializing and restoring termios speed
- ALSA: mixer: oss: Fix racy access to slots
- ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume
- xen/balloon: add late_initcall_sync() for initial ballooning done
- PCI: aardvark: Do not clear status bits of masked interrupts
- PCI: aardvark: Do not unmask unused interrupts
- PCI: aardvark: Fix return value of MSI domain .alloc() method
- PCI: aardvark: Read all 16-bits from PCIE_MSI_PAYLOAD_REG
- quota: check block number when reading the block in quota file
- quota: correct error number in free_dqentry()
- pinctrl: core: fix possible memory leak in pinctrl_enable()
- iio: dac: ad5446: Fix ad5622_write() return value
- USB: serial: keyspan: fix memleak on probe errors
- USB: iowarrior: fix control-message timeouts
- Bluetooth: sco: Fix lock_sock() blockage by memcpy_from_msg()
- Bluetooth: fix use-after-free error in lock_sock_nested()
- platform/x86: wmi: do not fail if disabling fails
- MIPS: lantiq: dma: add small delay after reset
- MIPS: lantiq: dma: reset correct number of channel
- locking/lockdep: Avoid RCU-induced noinstr fail
- smackfs: Fix use-after-free in netlbl_catmap_walk()
- x86: Increase exception stack sizes
- mwifiex: Run SET_BSS_MODE when changing from P2P to STATION vif-type
- mwifiex: Properly initialize private structure on interface type changes
- media: mt9p031: Fix corrupted frame after restarting stream
- media: netup_unidvb: handle interrupt properly according to the firmware
- media: uvcvideo: Set capability in s_param
- media: s5p-mfc: fix possible null-pointer dereference in s5p_mfc_probe()
- media: s5p-mfc: Add checking to s5p_mfc_probe().
- media: mceusb: return without resubmitting URB in case of -EPROTO error.
- ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK
- ACPICA: Avoid evaluating methods too early during system resume
- media: usb: dvd-usb: fix uninit-value bug in dibusb_read_eeprom_byte()
- tracefs: Have tracefs directories not set OTH permission bits by default
- ath: dfs_pattern_detector: Fix possible null-pointer dereference in
channel_detector_create()
- ACPI: battery: Accept charges over the design capacity as full
- leaking_addresses: Always print a trailing newline
- memstick: r592: Fix a UAF bug when removing the driver
- lib/xz: Avoid overlapping memcpy() with invalid input with in-place
decompression
- lib/xz: Validate the value before assigning it to an enum variable
- tracing/cfi: Fix cmp_entries_* functions signature mismatch
- mwl8k: Fix use-after-free in mwl8k_fw_state_machine()
- PM: hibernate: Get block device exclusively in swsusp_check()
- iwlwifi: mvm: disable RX-diversity in powersave
- smackfs: use __GFP_NOFAIL for smk_cipso_doi()
- ARM: clang: Do not rely on lr register for stacktrace
- gre/sit: Don't generate link-local addr if addr_gen_mode is
IN6_ADDR_GEN_MODE_NONE
- ARM: 9136/1: ARMv7-M uses BE-8, not BE-32
- spi: bcm-qspi: Fix missing clk_disable_unprepare() on error in
bcm_qspi_probe()
- parisc: fix warning in flush_tlb_all
- task_stack: Fix end_of_stack() for architectures with upwards-growing
stack
- parisc/kgdb: add kgdb_roundup() to make kgdb work with idle polling
- cgroup: Make rebind_subsystems() disable v2 controllers all at once
- media: dvb-usb: fix ununit-value in az6027_rc_query
- media: mtk-vpu: Fix a resource leak in the error handling path of
'mtk_vpu_probe()'
- media: si470x: Avoid card name truncation
- media: cx23885: Fix snd_card_free call on null card pointer
- cpuidle: Fix kobject memory leaks in error paths
- ath9k: Fix potential interrupt storm on queue reset
- crypto: qat - detect PFVF collision after ACK
- crypto: qat - disregard spurious PFVF interrupts
- hwrng: mtk - Force runtime pm ops for sleep ops
- b43legacy: fix a lower bounds test
- b43: fix a lower bounds test
- memstick: avoid out-of-range warning
- memstick: jmb38x_ms: use appropriate free function in
jmb38x_ms_alloc_host()
- hwmon: Fix possible memleak in __hwmon_device_register()
- ath10k: fix max antenna gain unit
- drm/msm: uninitialized variable in msm_gem_import()
- net: stream: don't purge sk_error_queue in sk_stream_kill_queues()
- mmc: mxs-mmc: disable regulator on error and in the remove function
- platform/x86: thinkpad_acpi: Fix bitwise vs. logical warning
- mwifiex: Send DELBA requests according to spec
- phy: micrel: ksz8041nl: do not use power down mode
- PM: hibernate: fix sparse warnings
- smackfs: use netlbl_cfg_cipsov4_del() for deleting cipso_v4_doi
- s390/gmap: don't unconditionally call pte_unmap_unlock() in __gmap_zap()
- irq: mips: avoid nested irq_enter()
- samples/kretprobes: Fix return value if register_kretprobe() failed
- libertas_tf: Fix possible memory leak in probe and disconnect
- libertas: Fix possible memory leak in probe and disconnect
- net: amd-xgbe: Toggle PLL settings during rate change
- net: phylink: avoid mvneta warning when setting pause parameters
- crypto: pcrypt - Delay write to padata->info
- ibmvnic: Process crqs after enabling interrupts
- RDMA/rxe: Fix wrong port_cap_flags
- ARM: s3c: irq-s3c24xx: Fix return value check for s3c24xx_init_intc()
- ARM: dts: at91: tse850: the emac<->phy interface is rmii
- scsi: dc395: Fix error case unwinding
- MIPS: loongson64: make CPU_LOONGSON64 depends on MIPS_FP_SUPPORT
- JFS: fix memleak in jfs_mount
- ALSA: hda: Reduce udelay() at SKL+ position reporting
- arm: dts: omap3-gta04a4: accelerometer irq fix
- soc/tegra: Fix an error handling path in tegra_powergate_power_up()
- memory: fsl_ifc: fix leak of irq and nand_irq in fsl_ifc_ctrl_probe
- video: fbdev: chipsfb: use memset_io() instead of memset()
- serial: 8250_dw: Drop wrong use of ACPI_PTR()
- usb: gadget: hid: fix error code in do_config()
- power: supply: rt5033_battery: Change voltage values to µV
- scsi: csiostor: Uninitialized data in csio_ln_vnp_read_cbfn()
- RDMA/mlx4: Return missed an error if device doesn't support steering
- ASoC: cs42l42: Correct some register default values
- ASoC: cs42l42: Defer probe if request_threaded_irq() returns EPROBE_DEFER
- serial: xilinx_uartps: Fix race condition causing stuck TX
- mips: cm: Convert to bitfield API to fix out-of-bounds access
- power: supply: bq27xxx: Fix kernel crash on IRQ handler register error
- apparmor: fix error check
- rpmsg: Fix rpmsg_create_ept return when RPMSG config is not defined
- pnfs/flexfiles: Fix misplaced barrier in nfs4_ff_layout_prepare_ds
- drm/plane-helper: fix uninitialized variable reference
- PCI: aardvark: Don't spam about PIO Response Status
- NFS: Fix deadlocks in nfs_scan_commit_list()
- fs: orangefs: fix error return code of orangefs_revalidate_lookup()
- mtd: spi-nor: hisi-sfc: Remove excessive clk_disable_unprepare()
- dmaengine: at_xdmac: fix AT_XDMAC_CC_PERID() macro
- auxdisplay: img-ascii-lcd: Fix lock-up when displaying empty string
- auxdisplay: ht16k33: Connect backlight to fbdev
- auxdisplay: ht16k33: Fix frame buffer device blanking
- netfilter: nfnetlink_queue: fix OOB when mac header was cleared
- dmaengine: dmaengine_desc_callback_valid(): Check for `callback_result`
- m68k: set a default value for MEMORY_RESERVE
- watchdog: f71808e_wdt: fix inaccurate report in WDIOC_GETTIMEOUT
- ar7: fix kernel builds for compiler test
- scsi: qla2xxx: Turn off target reset during issue_lip
- i2c: xlr: Fix a resource leak in the error handling path of
'xlr_i2c_probe()'
- xen-pciback: Fix return in pm_ctrl_init()
- net: davinci_emac: Fix interrupt pacing disable
- ACPI: PMIC: Fix intel_pmic_regs_handler() read accesses
- bonding: Fix a use-after-free problem when bond_sysfs_slave_add() failed
- mm/zsmalloc.c: close race window between zs_pool_dec_isolated() and
zs_unregister_migration()
- llc: fix out-of-bound array index in llc_sk_dev_hash()
- nfc: pn533: Fix double free when pn533_fill_fragment_skbs() fails
- vsock: prevent unnecessary refcnt inc for nonblocking connect
- USB: chipidea: fix interrupt deadlock
- ARM: 9155/1: fix early early_iounmap()
- ARM: 9156/1: drop cc-option fallbacks for architecture selection
- powerpc/lib: Add helper to check if offset is within conditional branch
range
- powerpc/bpf: Validate branch ranges
- powerpc/bpf: Fix BPF_SUB when imm == 0x80000000
- mm, oom: pagefault_out_of_memory: don't force global OOM for dying tasks
- mm, oom: do not trigger out_of_memory from the #PF
- s390/cio: check the subchannel validity for dev_busid
- PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros
- ext4: fix lazy initialization next schedule time computation in more
granular unit
- tracing: Resize tgid_map to pid_max, not PID_MAX_DEFAULT
- parisc/entry: fix trace test in syscall exit path
- PCI/MSI: Destroy sysfs before freeing entries
- arm64: zynqmp: Fix serial compatible string
- scsi: lpfc: Fix list_add() corruption in lpfc_drain_txq()
- usb: musb: tusb6010: check return value after calling
platform_get_resource()
- scsi: advansys: Fix kernel pointer leak
- ARM: dts: omap: fix gpmc,mux-add-data type
- usb: host: ohci-tmio: check return value after calling
platform_get_resource()
- tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc
- MIPS: sni: Fix the build
- scsi: target: Fix ordered tag handling
- scsi: target: Fix alua_tg_pt_gps_count tracking
- powerpc/5200: dts: fix memory node unit name
- ALSA: gus: fix null pointer dereference on pointer block
- powerpc/dcr: Use cmplwi instead of 3-argument cmpli
- sh: check return code of request_irq
- maple: fix wrong return value of maple_bus_init().
- sh: fix kconfig unmet dependency warning for FRAME_POINTER
- sh: define __BIG_ENDIAN for math-emu
- mips: BCM63XX: ensure that CPU_SUPPORTS_32BIT_KERNEL is set
- sched/core: Mitigate race cpus_share_cache()/update_top_cache_domain()
- net: bnx2x: fix variable dereferenced before check
- iavf: Fix for the false positive ASQ/ARQ errors while issuing VF reset
- MIPS: generic/yamon-dt: fix uninitialized variable error
- mips: bcm63xx: add support for clk_get_parent()
- mips: lantiq: add support for clk_get_parent()
- platform/x86: hp_accel: Fix an error handling path in 'lis3lv02d_probe()'
- net: virtio_net_hdr_to_skb: count transport header in UFO
- i40e: Fix NULL ptr dereference on VSI filter sync
- NFC: reorganize the functions in nci_request
- NFC: reorder the logic in nfc_{un,}register_device
- perf/x86/intel/uncore: Fix filter_tid mask for CHA events on Skylake
Server
- perf/x86/intel/uncore: Fix IIO event constraints for Skylake Server
- tun: fix bonding active backup with arp monitoring
- hexagon: export raw I/O routines for modules
- mm: kmemleak: slob: respect SLAB_NOLEAKTRACE flag
- btrfs: fix memory ordering between normal and ordered work functions
- parisc/sticon: fix reverse colors
- cfg80211: call cfg80211_stop_ap when switch from P2P_GO type
- drm/udl: fix control-message timeout
- drm/amdgpu: fix set scaling mode Full/Full aspect/Center not works on vga
and dvi connectors
- perf/core: Avoid put_page() when GUP fails
- batman-adv: mcast: fix duplicate mcast packets in BLA backbone from LAN
- batman-adv: Consider fragmentation for needed_headroom
- batman-adv: Reserve needed_*room for fragments
- batman-adv: Don't always reallocate the fragmentation skb head
- RDMA/netlink: Add __maybe_unused to static inline in C file
- ASoC: DAPM: Cover regression by kctl change notification fix
- usb: max-3421: Use driver data instead of maintaining a list of bound
devices
- soc/tegra: pmc: Fix imbalanced clock disabling in error code path
- crypto: s5p-sss - Add error handling in s5p_aes_probe()
- ia64: kprobes: Fix to pass correct trampoline address to the handler
- rsi: fix key enabled check causing unwanted encryption for vap_id > 0
- rsi: fix rate mask set leading to P2P failure
- mmc: sdhci-omap: Fix NULL pointer exception if regulator is not configured
- tcp: don't free a FIN sk_buff in tcp_remove_empty_skb()
- wcn36xx: add proper DMA memory barriers in rx path
- s390/tape: fix timer initialization in tape_std_assign()
- fuse: truncate pagecache on atomic_o_trunc
- f2fs: fix up f2fs_lookup tracepoints
- iavf: check for null in iavf_fix_features
- i40e: Fix correct max_pkt_size on VF RX queue
- i40e: Fix changing previously set num_queue_pairs for PFs
- i40e: Fix display error code in dmesg
* Bionic update: upstream stable patchset 2021-12-03 (LP: #1953202)
- ARM: 9133/1: mm: proc-macros: ensure *_tlb_fns are 4B aligned
- ARM: 9134/1: remove duplicate memcpy() definition
- ARM: 9139/1: kprobes: fix arch_init_kprobes() prototype
- ARM: 8819/1: Remove '-p' from LDFLAGS
- usbnet: sanity check for maxpacket
- usbnet: fix error return code in usbnet_probe()
- ata: sata_mv: Fix the error handling of mv_chip_id()
- nfc: port100: fix using -ERRNO as command type mask
- ipv4: use siphash instead of Jenkins in fnhe_hashfun()
- mmc: vub300: fix control-message timeouts
- mmc: dw_mmc: exynos: fix the finding clock sample value
- mmc: sdhci: Map more voltage level to SDHCI_POWER_330
- mmc: sdhci-esdhc-imx: clear the buffer_read_ready to reset standard tuning
circuit
- net: lan78xx: fix division by zero in send path
- regmap: Fix possible double-free in regcache_rbtree_exit()
- net: batman-adv: fix error handling
- nios2: Make NIOS2_DTB_SOURCE_BOOL depend on !COMPILE_TEST
- net: nxp: lpc_eth.c: avoid hang when bringing interface down
- sctp: use init_tag from inithdr for ABORT chunk
- sctp: fix the processing for COOKIE_ECHO chunk
- sctp: add vtag check in sctp_sf_violation
- sctp: add vtag check in sctp_sf_do_8_5_1_E_sa
- sctp: add vtag check in sctp_sf_ootb
- ARM: 9141/1: only warn about XIP address when not compile testing
- arm64: Avoid premature usercopy failure
- ipv6: use siphash in rt6_exception_hash()
- ipv6: make exception cache less predictible
- arm64: dts: allwinner: h5: NanoPI Neo 2: Fix ethernet node
- scsi: core: Put LLD module refcnt after SCSI device is released
- media: firewire: firedtv-avc: fix a buffer overflow in avc_ca_pmt()
- sfc: Fix reading non-legacy supported link modes
- ARM: 9120/1: Revert "amba: make use of -1 IRQs warn"
- mm/zsmalloc: Prepare to variable MAX_PHYSMEM_BITS
- arch: pgtable: define MAX_POSSIBLE_PHYSMEM_BITS where needed
- block: introduce multi-page bvec helpers
- Revert "x86/kvm: fix vcpu-id indexed array sizes"
- usb: gadget: Mark USB_FSL_QE broken on 64-bit
- usb: musb: Balance list entry in musb_gadget_queue
- usb-storage: Add compatibility quirk flags for iODD 2531/2541
- printk/console: Allow to disable console output by using console="" or
console=null
- isofs: Fix out of bound access for corrupted isofs image
- comedi: dt9812: fix DMA buffers on stack
- comedi: ni_usb6501: fix NULL-deref in command paths
- comedi: vmk80xx: fix transfer-buffer overflows
- comedi: vmk80xx: fix bulk-buffer overflow
- comedi: vmk80xx: fix bulk and interrupt message timeouts
- staging: r8712u: fix control-message timeout
- staging: rtl8192u: fix control-message timeouts
- rsi: fix control-message timeout
- usb: ehci: handshake CMD_RUN instead of STS_HALT
-- Kelsey Skunberg <kelsey.skunb...@canonical.com> Tue, 04 Jan 2022
17:01:18 -0700
** Changed in: linux (Ubuntu Bionic)
Status: Fix Committed => Fix Released
--
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https://bugs.launchpad.net/bugs/1953386
Title:
hisi_sas driver may oops in prep_ssp_v3_hw()
Status in kunpeng920:
Fix Committed
Status in kunpeng920 ubuntu-18.04 series:
Fix Committed
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
Fix Released
Bug description:
[Impact]
The hisi_sas driver occasionally oopses on boot.
[ 32.724666] Unable to handle kernel NULL pointer dereference at virtual
address 00000110
[ 32.732720] Mem abort info:
[ 32.735504] ESR = 0x96000004
[ 32.738546] Exception class = DABT (current EL), IL = 32 bits
[ 32.744440] SET = 0, FnV = 0
[ 32.747482] EA = 0, S1PTW = 0
[ 32.750612] Data abort info:
[ 32.753478] ISV = 0, ISS = 0x00000004
[ 32.757298] CM = 0, WnR = 0
[ 32.760256] user pgtable: 4k pages, 48-bit VAs, pgd = (ptrval)
[ 32.766755] [0000000000000110] *pgd=0000000000000000
[ 32.771700] Internal error: Oops: 96000004 [#1] SMP
[ 32.776557] Modules linked in: realtek hibmc_drm aes_ce_blk aes_ce_cipher
ttm crct10dif_ce ghash_ce drm_kms_helper ixgbe(+) syscopyarea sha2_ce
sysfillrect sysimgblt fb_sys_fops ptp sha256_arm64 sha1_ce hns3
hisi_sas_v3_hw(+) hinic pps_core hisi_sas_main drm hclge mdio libsas ahci hnae3
scsi_transport_sas libahci gpio_dwapb hid_generic usbhid hid aes_neon_bs
aes_neon_blk crypto_simd cryptd aes_arm64
[ 32.811755] Process kworker/u256:1 (pid: 1280, stack limit = 0x
(ptrval))
[ 32.819118] CPU: 66 PID: 1280 Comm: kworker/u256:1 Not tainted 4.15.18+ #24
[ 32.826047] Hardware name: Huawei TaiShan 2280 V2/BC82AMDC, BIOS 2280-V2
CS V3.B160.01 01/15/2020
[ 32.834884] Workqueue: 0000:74:02.0_disco_q sas_discover_domain [libsas]
[ 32.839182] hns3 0000:bd:00.0 enp189s0f0: renamed from eth8
[ 32.841558] pstate: a0c00009 (NzCv daif +PAN +UAO)
[ 32.851878] pc : prep_ssp_v3_hw+0x64/0x340 [hisi_sas_v3_hw]
[ 32.857426] lr : hisi_sas_task_exec.constprop.0+0x304/0x640 [hisi_sas_main]
[ 32.864354] sp : ffff000021833a00
[ 32.867653] x29: ffff000021833a00 x28: ffffb790728621e0
[ 32.872940] x27: ffffb790728607d8 x26: ffffb79072861158
[ 32.878227] x25: ffffd7b07b9340a0 x24: 0000000000000028
[ 32.883515] x23: ffffd7906cd69400 x22: ffffd7906cd69418
[ 32.888802] x21: ffffb79072aad3d0 x20: ffff000021b33000
[ 32.894089] x19: ffffb79072aad3d0 x18: 0000000000000030
[ 32.899376] x17: 000000009e710776 x16: ffff3efb16aabb00
[ 32.904663] x15: ffffffffffffffff x14: ffff3efb976abcef
[ 32.909950] x13: 0000000000000006 x12: ffffb79072863480
[ 32.915237] x11: ffffb79072aad3e0 x10: ffffb79072861148
[ 32.920524] x9 : 0000000000000000 x8 : ffff000024cc0fb0
[ 32.925812] x7 : 0000000000000000 x6 : 000000000000003f
[ 32.931099] x5 : 0000000000000040 x4 : 00000000200000a0
[ 32.936386] x3 : ffffd79071e2d400 x2 : ffff000021833bb4
[ 32.941673] x1 : ffffb79072863460 x0 : 00000000280000a0
[ 32.946960] Call trace:
[ 32.949398] prep_ssp_v3_hw+0x64/0x340 [hisi_sas_v3_hw]
[ 32.954600] hisi_sas_task_exec.constprop.0+0x304/0x640 [hisi_sas_main]
[ 32.961184] hisi_sas_exec_internal_tmf_task+0xec/0x290 [hisi_sas_main]
[ 32.967767] hisi_sas_init_device+0x84/0x100 [hisi_sas_main]
[ 32.973401] hisi_sas_dev_found+0xa4/0x24c [hisi_sas_main]
[ 32.978864] sas_notify_lldd_dev_found+0x44/0xc0 [libsas]
[ 32.984239] sas_discover_end_dev+0x24/0x30 [libsas]
[ 32.989182] sas_ex_discover_devices+0x950/0xbfc [libsas]
[ 32.994557] sas_discover_root_expander+0x12c/0x150 [libsas]
[ 33.000192] sas_discover_domain+0x340/0x664 [libsas]
[ 33.005225] process_one_work+0x1bc/0x3ec
[ 33.009217] worker_thread+0x58/0x4a0
[ 33.012863] kthread+0x13c/0x170
[ 33.016077] ret_from_fork+0x10/0x18
[ 33.019638] Code: 2a004820 2a040000 f9400ed8 f9410061 (3943a319)
[ 33.025705] ---[ end trace da9256b7aa3297ba ]---
[Test Case]
Boot a hi1620-based server w/ root disk attached to hisi_sas v3 controller.
[Fix]
e1ba0b0b4451 scsi: hisi_sas: Fix to only call scsi_get_prot_op() for non-NULL
scsi_cmnd
[Where things could go wrong]
We could potentially be trading one boot time crash for another that hasn't
popped up in testing.
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