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linux-stable/arch/powerpc/kernel
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Sam Bobroff d4f194ed9e powerpc/eeh: Fix deadlock handling dead PHB 
Recovering a dead PHB can currently cause a deadlock as the PCI
rescan/remove lock is taken twice.

This is caused as part of an existing bug in
eeh_handle_special_event(). The pe is processed while traversing the
PHBs even though the pe is unrelated to the loop. This causes the pe
to be, incorrectly, processed more than once.

Untangling this section can move the pe processing out of the loop and
also outside the locked section, correcting both problems.

Fixes: 2e25505147b8 ("powerpc/eeh: Fix crash when edev->pdev changes")
Cc: stable@vger.kernel.org # 5.4+
Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
Reviewed-by: Frederic Barrat <fbarrat@linux.ibm.com>
Tested-by: Frederic Barrat <fbarrat@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/0547e82dbf90ee0729a2979a8cac5c91665c621f.1581051445.git.sbobroff@linux.ibm.com
2020-02-17 12:47:05 +11:00
..
syscalls
threads-v5.6
2020-01-29 19:38:34 -08:00
trace
powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
2019-09-18 12:24:55 +10:00
vdso32
powerpc/vdso32: miscellaneous optimisations
2020-01-23 21:31:16 +11:00
vdso64
powerpc: Fix vDSO clock_getres()
2019-12-05 00:13:55 +11:00
.gitignore
powerpc: improve prom_init_check rule
2019-09-14 00:04:41 +10:00
align.c
powerpc/spe: Mark expected switch fall-throughs
2019-07-31 00:19:34 +10:00
asm-offsets.c
powerpc/32: prepare for CONFIG_VMAP_STACK
2020-01-26 22:15:09 +11:00
audit.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
btext.c
powerpc: Rework btext_find_display to use of_stdout and device_type helpers
2018-11-26 22:33:37 +11:00
cacheinfo.c
powerpc updates for 5.3
2019-07-13 16:08:36 -07:00
cacheinfo.h
powerpc/cacheinfo: add cacheinfo_teardown, cacheinfo_rebuild
2019-06-15 16:52:06 +10:00
compat_audit.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
cpu_setup_6xx.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
cpu_setup_44x.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
cpu_setup_fsl_booke.S
powerpc/booke: Spelling s/date/data/
2019-11-17 01:56:31 -06:00
cpu_setup_pa6t.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
cpu_setup_power.S
powerpc/64s: Set reserved PCR bits
2019-09-21 08:36:53 +10:00
cpu_setup_ppc970.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
cputable.c
powerpc/32s: get rid of CPU_FTR_601 feature
2019-08-28 23:19:33 +10:00
crash_dump.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 230
2019-06-19 17:09:06 +02:00
dawr.c
powerpc/watchpoint: Fix length calculation for unaligned target
2019-11-13 16:58:03 +11:00
dbell.c
KVM: PPC: Book3S HV: use smp_mb() when setting/clearing host_ipi flag
2019-09-24 12:46:26 +10:00
dma-iommu.c
powerpc updates for 5.4
2019-09-20 11:48:06 -07:00
dma-mask.c
dma-mapping, powerpc: simplify the arch dma_set_mask override
2019-02-18 22:41:03 +11:00
dma-swiotlb.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
dt_cpu_ftrs.c
powerpc/mm: Remove kvm radix prefetch workaround for Power9 DD2.2
2020-01-26 00:11:37 +11:00
early_32.c
powerpc/fsl_booke/32: implement KASLR infrastructure
2019-11-13 19:27:40 +11:00
eeh_cache.c
powerpc/eeh_cache: Don't use pci_dn when inserting new ranges
2020-01-23 21:31:18 +11:00
eeh_dev.c
powerpc/eeh: Add bdfn field to eeh_dev
2019-08-22 23:12:46 +10:00
eeh_driver.c
powerpc/eeh: Fix deadlock handling dead PHB
2020-02-17 12:47:05 +11:00
eeh_event.c
powerpc/eeh: Fix build with STACKTRACE=n
2019-09-14 00:01:14 +10:00
eeh_pe.c
powerpc/eeh: Clean up EEH PEs after recovery finishes
2019-09-05 14:22:37 +10:00
eeh_sysfs.c
powerpc/eeh_sysfs: Make clearing EEH_DEV_SYSFS saner
2020-01-23 21:31:19 +11:00
eeh.c
powerpc/eeh: Only dump stack once if an MMIO loop is detected
2020-01-23 21:31:20 +11:00
entry_32.S
powerpc: Fix CONFIG_TRACE_IRQFLAGS with CONFIG_VMAP_STACK
2020-02-08 21:49:06 +11:00
entry_64.S
powerpc updates for 5.6
2020-02-04 13:06:46 +00:00
epapr_hcalls.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
epapr_paravirt.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266
2019-06-05 17:30:28 +02:00
exceptions-64e.S
powerpc: unify definition of M_IF_NEEDED
2019-11-13 19:27:24 +11:00
exceptions-64s.S
powerpc: Provide initial documentation for PAPR hcalls
2020-01-29 21:30:50 +11:00
fadump.c
powerpc/fadump: when fadump is supported register the fadump sysfs files.
2019-11-13 16:58:11 +11:00
firmware.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
fpu.S
powerpc/32s: Enable CONFIG_VMAP_STACK
2020-01-27 22:37:24 +11:00
fsl_booke_entry_mapping.S
powerpc/fsl_booke/32: implement KASLR infrastructure
2019-11-13 19:27:40 +11:00
head_8xx.S
powerpc/8xx: Enable CONFIG_VMAP_STACK
2020-01-27 22:36:59 +11:00
head_32.h
powerpc/32s: Enable CONFIG_VMAP_STACK
2020-01-27 22:37:24 +11:00
head_32.S
powerpc/32s: Enable CONFIG_VMAP_STACK
2020-01-27 22:37:24 +11:00
head_40x.S
powerpc/32: save DEAR/DAR before calling handle_page_fault
2020-01-26 22:15:09 +11:00
head_44x.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
head_64.S
powerpc/prom: convert PROM_BUG() to standard trap
2019-08-28 11:31:18 +10:00
head_booke.h
powerpc/32: save DEAR/DAR before calling handle_page_fault
2020-01-26 22:15:09 +11:00
head_fsl_booke.S
powerpc/32: save DEAR/DAR before calling handle_page_fault
2020-01-26 22:15:09 +11:00
hw_breakpoint.c
powerpc/hw_breakpoints: Rewrite 8xx breakpoints to allow any address range size.
2020-01-23 21:31:14 +11:00
idle_6xx.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
idle_book3e.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
idle_book3s.S
powerpc/64s: Reimplement power4_idle code in C
2020-01-16 14:59:37 +10:00
idle_e500.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
idle.c
powerpc/64s: Reimplement power4_idle code in C
2020-01-16 14:59:37 +10:00
ima_arch.c
powerpc/ima: Indicate kernel modules appended signatures are enforced
2019-11-12 12:25:50 +11:00
io-workarounds.c
powerpc/mm: rework io-workaround invocation.
2019-08-27 13:03:34 +10:00
io.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
iomap.c
powerpc: iomap.c: introduce io{read|write}64_{lo_hi|hi_lo}
2018-04-05 14:59:26 +10:00
iommu.c
Merge branch 'topic/ppc-kvm' into next
2019-08-30 09:52:57 +10:00
irq.c
powerpc/32: Use vmapped stacks for interrupts
2020-01-27 22:36:15 +11:00
isa-bridge.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
jump_label.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
kgdb.c
powerpc: Activate CONFIG_THREAD_INFO_IN_TASK
2019-02-23 22:31:40 +11:00
kprobes-ftrace.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
kprobes.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
kvm_emul.S
powerpc/kvm: Add ifdefs around template code
2019-09-14 00:04:40 +10:00
kvm.c
powerpc/kvm: Explicitly mark kvm guest code as __init
2019-09-14 00:04:40 +10:00
l2cr_6xx.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
2019-05-24 17:36:45 +02:00
legacy_serial.c
tty/serial: Migrate 8250_fsl to use has_sysrq
2019-12-18 15:04:42 +01:00
Makefile
powerpc/64s: Reimplement power4_idle code in C
2020-01-16 14:59:37 +10:00
mce_power.c
powerpc/mm/mce: Keep irqs disabled during lockless page table walk
2019-09-19 21:24:59 +10:00
mce.c
powerpc/64s/pseries: machine check convert to use common event code
2019-08-30 10:32:35 +10:00
misc_32.S
powerpc/32: Split kexec low level code out of misc_32.S
2019-11-21 15:41:34 +11:00
misc_64.S
Merge branch 'topic/kaslr-book3e32' into next
2019-11-14 19:23:33 +11:00
misc.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
module_32.c
powerpc updates for 5.3
2019-07-13 16:08:36 -07:00
module_64.c
powerpc updates for 5.3
2019-07-13 16:08:36 -07:00
module.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
module.lds
powerpc/modules: Fix alignment of .toc section in kernel modules
2017-12-11 13:03:35 +11:00
msi.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
note.S
powerpc: Add PowerPC Capabilities ELF note
2019-08-30 09:40:15 +10:00
nvram_64.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
of_platform.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
optprobes_head.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
optprobes.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
paca.c
powerpc/pseries/svm: Use shared memory for LPPACA structures
2019-08-30 09:55:40 +10:00
pci_32.c
powerpc/64: Adjust order in pcibios_init()
2019-08-22 23:11:48 +10:00
pci_64.c
powerpc/64: Adjust order in pcibios_init()
2019-08-22 23:11:48 +10:00
pci_dn.c
powerpc/pcidn: Warn when sriov pci_dn management is used incorrectly
2020-01-23 21:31:19 +11:00
pci_of_scan.c
powerpc/pci: Remove pcibios_setup_bus_devices()
2020-01-06 16:25:29 +11:00
pci-common.c
powerpc/pci: Fold pcibios_setup_device() into pcibios_bus_add_device()
2020-01-23 21:31:21 +11:00
pci-hotplug.c
powerpc/pci: Remove pcibios_setup_bus_devices()
2020-01-06 16:25:29 +11:00
pmc.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ppc32.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
ppc_save_regs.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
proc_powerpc.c
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
process.c
powerpc: use probe_user_read() and probe_user_write()
2020-01-26 00:11:35 +11:00
prom_init_check.sh
powerpc/prom_init: Undo relocation before entering secure mode
2019-10-29 15:12:17 +11:00
prom_init.c
powerpc/pseries: Enable support for ibm,drc-info property
2019-11-13 16:58:00 +11:00
prom_parse.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
prom.c
powerpc/fadump: add support to preserve crash data on FADUMP disabled kernel
2019-09-14 00:04:45 +10:00
ptrace32.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
ptrace.c
powerpc/watchpoint: Fix ptrace code that muck around with address/len
2019-11-13 16:58:03 +11:00
reloc_32.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
reloc_64.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
rtas_flash.c
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
rtas_pci.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
rtas-proc.c
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
rtas-rtc.c
powerpc: use time64_t in read_persistent_clock
2018-06-03 20:43:33 +10:00
rtas.c
powerpc/rtas: allow rescheduling while changing cpu states
2019-08-20 21:22:27 +10:00
rtasd.c
proc: convert everything to "struct proc_ops"
2020-02-04 03:05:26 +00:00
secure_boot.c
powerpc: Detect the trusted boot state of the system
2019-11-12 12:25:49 +11:00
security.c
powerpc updates for 5.5
2019-11-30 14:35:43 -08:00
secvar-ops.c
powerpc/powernv: Add OPAL API interface to access secure variable
2019-11-13 00:33:22 +11:00
secvar-sysfs.c
powerpc: expose secure variables to userspace via sysfs
2019-11-13 00:33:22 +11:00
setup_32.c
powerpc/32: Use vmapped stacks for interrupts
2020-01-27 22:36:15 +11:00
setup_64.c
powerpc: align stack to 2 * THREAD_SIZE with VMAP_STACK
2020-01-26 22:15:09 +11:00
setup-common.c
arch/powerpc/setup: Drop dummy_con initialization
2020-01-14 15:29:17 +01:00
setup.h
powerpc/32: Add early stack overflow detection with VMAP stack.
2020-01-27 22:35:49 +11:00
signal_32.c
powerpc/tm: Fix oops on sigreturn on systems without TM
2019-07-22 13:05:23 +10:00
signal_64.c
powerpc/tm: Fix oops on sigreturn on systems without TM
2019-07-22 13:05:23 +10:00
signal.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
signal.h
powerpc/syscalls: signal_{32, 64} - switch to SYSCALL_DEFINE
2018-05-10 23:25:13 +10:00
smp-tbsync.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
smp.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
stacktrace.c
powerpc/ftrace: Enable HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
2019-09-18 12:24:55 +10:00
suspend.c
PM: hibernate: powerpc: Expose pfn_is_nosave() prototype
2019-06-14 10:48:56 +02:00
swsusp_32.S
powerpc/32s: fix suspend/resume when IBATs 4-7 are used
2019-06-19 20:05:07 +10:00
swsusp_64.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
2019-06-19 17:11:22 +02:00
swsusp_asm64.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
2019-06-19 17:11:22 +02:00
swsusp_booke.S
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
swsusp.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
sys_ppc32.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
syscalls.c
y2038: syscalls: change remaining timeval to __kernel_old_timeval
2019-11-15 14:38:29 +01:00
sysfs.c
powerpc/pseries/svm: Export guest SVM status to user space via sysfs
2019-08-30 09:55:41 +10:00
systbl_chk.sh
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
systbl.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
tau_6xx.c
powerpc/tau: Make some function static
2018-05-25 12:04:44 +10:00
time.c
powerpc: Fix vDSO clock_getres()
2019-12-05 00:13:55 +11:00
tm.S
powerpc/tm: update comment about interrupt re-entrancy
2019-07-02 21:39:49 +10:00
traps.c
powerpc/32: Add early stack overflow detection with VMAP stack.
2020-01-27 22:35:49 +11:00
ucall.S
powerpc/kernel: Add ucall_norets() ultravisor call handler
2019-08-30 09:40:15 +10:00
udbg_16550.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
udbg.c
powerpc/udbg: Make it safe to call udbg_printf() always
2019-10-11 19:33:25 +11:00
uprobes.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
vdso.c
powerpc/vdso32: Don't read cache line size from the datapage on PPC32.
2020-01-23 21:31:15 +11:00
vecemu.c
powerpc: Add a missing include header
2018-05-25 12:04:46 +10:00
vector.S
powerpc/32s: Enable CONFIG_VMAP_STACK
2020-01-27 22:37:24 +11:00
vmlinux.lds.S
powerpc: align stack to 2 * THREAD_SIZE with VMAP_STACK
2020-01-26 22:15:09 +11:00
watchdog.c
powerpc/watchdog: Use hrtimers for per-CPU heartbeat
2019-04-30 11:31:02 +10:00