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Gavin Shan 0c4b9e27b0 powerpc/iommu: Don't detach device without IOMMU group 
Some devices, for example PCI root port, don't have IOMMU table and
group. We needn't detach them from their IOMMU group. Otherwise, it
potentially incurs kernel crash because of referring NULL IOMMU group
as following backtrace indicates:

  .iommu_group_remove_device+0x74/0x1b0
  .iommu_bus_notifier+0x94/0xb4
  .notifier_call_chain+0x78/0xe8
  .__blocking_notifier_call_chain+0x7c/0xbc
  .blocking_notifier_call_chain+0x38/0x48
  .device_del+0x50/0x234
  .pci_remove_bus_device+0x88/0x138
  .pci_stop_and_remove_bus_device+0x2c/0x40
  .pcibios_remove_pci_devices+0xcc/0xfc
  .pcibios_remove_pci_devices+0x3c/0xfc

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-01-15 13:58:33 +11:00
..
vdso32
powerpc: Delete non-required instances of include <linux/init.h>
2014-01-15 13:46:44 +11:00
vdso64
powerpc: Delete non-required instances of include <linux/init.h>
2014-01-15 13:46:44 +11:00
.gitignore
…
align.c
powerpc: Enable Little Endian Alignment Handler for Float Pair Instructions
2013-10-30 16:01:23 +11:00
asm-offsets.c
powerpc/book3s: handle machine check in Linux host.
2013-12-05 16:02:06 +11:00
audit.c
…
btext.c
powerpc/btext: Fix CONFIG_PPC_EARLY_DEBUG_BOOTX on ppc32
2013-08-27 16:01:23 +10:00
cacheinfo.c
powerpc: Delete non-required instances of include <linux/init.h>
2014-01-15 13:46:44 +11:00
cacheinfo.h
…
clock.c
powerpc: various straight conversions from module.h --> export.h
2011-10-31 19:30:44 -04:00
compat_audit.c
…
cpu_setup_6xx.S
powerpc: Fix some 6xx/7xxx CPU setup functions
2011-02-07 12:57:11 +11:00
cpu_setup_44x.S
powerpc/44x: Add support for the AMCC APM821xx SoC
2010-10-13 08:47:09 -04:00
cpu_setup_a2.S
powerpc: Enforce usage of RA 0-R31 where possible
2012-07-10 19:18:35 +10:00
cpu_setup_fsl_booke.S
powerpc/85xx: Add machine check handler to fix PCIe erratum on mpc85xx
2013-07-30 15:50:07 -05:00
cpu_setup_pa6t.S
…
cpu_setup_power.S
powerpc/book3s: Add flush_tlb operation in cpu_spec.
2013-12-05 16:04:38 +11:00
cpu_setup_ppc970.S
powerpc, KVM: Split HVMODE_206 cpu feature bit into separate HV and architecture bits
2011-07-12 13:16:58 +03:00
cputable.c
powerpc/book3s: Flush SLB/TLBs if we get SLB/TLB machine check errors on power8.
2013-12-05 16:04:40 +11:00
crash_dump.c
powerpc: Fix endian issues in crash dump code
2013-12-13 15:48:39 +11:00
crash.c
powerpc: Delete non-required instances of include <linux/init.h>
2014-01-15 13:46:44 +11:00
dbell.c
powerpc: Add accounting for Doorbell interrupts
2013-04-18 15:59:55 +10:00
dma-iommu.c
powerpc/iommu: Update the generic code to use dynamic iommu page sizes
2013-12-30 14:17:19 +11:00
dma-swiotlb.c
powerpc/swiotlb: Enable at early stage and disable if not necessary
2012-09-12 14:57:09 -05:00
dma.c
powerpc/kernel: Remove uses of abs_to_virt() and virt_to_abs()
2012-09-05 15:19:30 +10:00
eeh_cache.c
powerpc/eeh: Remove reference to PCI device
2013-07-24 14:18:46 +10:00
eeh_dev.c
powerpc/eeh: Move common part to kernel directory
2013-06-20 17:05:35 +10:00
eeh_driver.c
powerpc/eeh: Hotplug improvement
2014-01-15 13:58:29 +11:00
eeh_event.c
powerpc/eeh: More accurate log
2013-11-21 10:33:36 +11:00
eeh_pe.c
powerpc/eeh: Add restore_config operation
2014-01-15 13:46:46 +11:00
eeh_sysfs.c
powerpc/eeh: Introdce flag to protect sysfs
2013-07-24 14:18:49 +10:00
eeh.c
powerpc/eeh: Hotplug improvement
2014-01-15 13:58:29 +11:00
entry_32.S
powerpc/32bit:Store temporary result in r0 instead of r8
2013-06-01 08:29:27 +10:00
entry_64.S
powerpc/book3s: Queue up and process delayed MCE events.
2013-12-05 16:05:21 +11:00
epapr_hcalls.S
powerpc: Add paravirt idle loop for 64-bit Book-E
2013-03-13 14:19:36 -05:00
epapr_paravirt.c
powerpc: add explicit OF includes
2013-10-09 20:04:11 -05:00
exceptions-64e.S
powerpc/booke64: Use common defines for AltiVec interrupts numbers
2013-10-16 18:46:40 -05:00
exceptions-64s.S
powerpc: Fix "attempt to move .org backwards" error
2013-12-30 14:16:30 +11:00
fadump.c
mm/ppc: use common help functions to free reserved pages
2013-04-29 15:54:30 -07:00
firmware.c
powerpc: fix implicit use of cache.h in kernel/firmware.c
2011-10-31 19:30:41 -04:00
fpu.S
powerpc: Don't corrupt user registers on 32-bit
2013-10-23 22:34:19 +11:00
fsl_booke_entry_mapping.S
powerpc/fsl-booke: Fix address issue when using relocatable kernels
2010-07-11 11:04:08 -05:00
ftrace.c
powerpc: Make ftrace endian-safe.
2013-10-11 16:53:26 +11:00
head_8xx.S
powerpc/8xx: Fixing issue with CONFIG_PIN_TLB
2013-10-28 21:11:21 -05:00
head_32.S
powerpc: Call do_page_fault() with interrupts off
2012-03-09 10:55:08 +11:00
head_40x.S
powerpc: Remove the empty giveup_fpu() function on 32bit kernel
2013-08-14 14:59:50 +10:00
head_44x.S
powerpc: Remove the empty giveup_fpu() function on 32bit kernel
2013-08-14 14:59:50 +10:00
head_64.S
powerpc: Delete non-required instances of include <linux/init.h>
2014-01-15 13:46:44 +11:00
head_booke.h
powerpc: Fix interrupt range check on debug exception
2013-05-02 10:31:01 +10:00
head_fsl_booke.S
powerpc/fsl-booke: Use common defines for SPE/FP interrupts numbers
2013-10-16 18:49:44 -05:00
hw_breakpoint.c
powerpc: Delete non-required instances of include <linux/init.h>
2014-01-15 13:46:44 +11:00
ibmebus.c
PPC: ibmebus: convert bus code to use bus_groups
2013-09-26 15:49:42 -07:00
idle_6xx.S
powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly
2012-07-11 14:18:22 +10:00
idle_book3e.S
powerpc: Add paravirt idle loop for 64-bit Book-E
2013-03-13 14:19:36 -05:00
idle_e500.S
powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly
2012-07-11 14:18:22 +10:00
idle_power4.S
powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly
2012-07-11 14:18:22 +10:00
idle_power7.S
powerpc/book3s: Return from interrupt if coming from evil context.
2013-12-05 16:04:36 +11:00
idle.c
powerpc/idle: Convert use of typedef ctl_table to struct ctl_table
2013-07-01 11:10:35 +10:00
io-workarounds.c
powerpc: Better split CONFIG_PPC_INDIRECT_PIO and CONFIG_PPC_INDIRECT_MMIO
2013-08-14 14:57:50 +10:00
io.c
powerpc/powernv: Add PIO accessors for Power8 LPC bus
2013-08-14 14:58:08 +10:00
iomap.c
powerpc: Delete non-required instances of include <linux/init.h>
2014-01-15 13:46:44 +11:00
iommu.c
powerpc/iommu: Don't detach device without IOMMU group
2014-01-15 13:58:33 +11:00
irq.c
powerpc: Make irq_stat.timers_irqs counting more specific
2013-12-02 14:14:50 +11:00
isa-bridge.c
POWERPC: drivers: remove __dev* attributes.
2013-01-03 15:57:04 -08:00
jump_label.c
powerpc: Fix build breakage in jump_label.c
2011-11-16 14:25:19 +11:00
kgdb.c
powerpc: Delete non-required instances of include <linux/init.h>
2014-01-15 13:46:44 +11:00
kprobes.c
doc: typo on word accounting in kprobes.c in mutliple architectures
2013-10-14 15:46:39 +02:00
kvm_emul.S
KVM: PPC: Not optimizing MSR_CE and MSR_ME with paravirt.
2012-05-30 11:43:11 +02:00
kvm.c
mm: enhance free_reserved_area() to support poisoning memory with zero
2013-07-03 16:07:32 -07:00
l2cr_6xx.S
Fix common misspellings
2011-03-31 11:26:23 -03:00
legacy_serial.c
powerpc/legacy_serial: Fix incorrect placement of __initdata tag
2013-10-11 16:48:59 +11:00
machine_kexec_32.c
treewide: convert uses of ATTRIB_NORETURN to __noreturn
2012-01-12 20:13:03 -08:00
machine_kexec_64.c
powerpc/kexec: kexec_sequence() is in misc_64.S
2013-10-30 16:02:18 +11:00
machine_kexec.c
powerpc: Fix up the kdump base cap to 128M
2013-12-10 11:28:39 +11:00
Makefile
powerpc/book3s: Decode and save machine check event.
2013-12-05 16:05:20 +11:00
mce_power.c
powerpc: Fix endian issues in power7/8 machine check handler
2013-12-30 14:51:09 +11:00
mce.c
powerpc/powernv: Machine check exception handling.
2013-12-05 16:06:06 +11:00
misc_32.S
powerpc: purge all the prefetched instructions for the coherent icache flush
2013-12-02 14:13:47 +11:00
misc_64.S
Merge branch 'merge' into next
2013-12-30 15:19:31 +11:00
misc.S
powerpc: switch to generic sys_execve()/kernel_execve()
2012-09-30 23:35:51 -04:00
module_32.c
powerpc: Move local setup.h declarations to arch includes
2013-10-30 16:00:31 +11:00
module_64.c
powerpc: Move local setup.h declarations to arch includes
2013-10-30 16:00:31 +11:00
module.c
powerpc: Move local setup.h declarations to arch includes
2013-10-30 16:00:31 +11:00
msi.c
…
nvram_64.c
arch/powerpc/kernel: Use %12.12s instead of %12s to avoid memory overflow
2013-11-25 11:50:57 +11:00
of_platform.c
powerpc/eeh: Fix crash when adding a device in a slot with DDW
2013-01-10 17:01:58 +11:00
paca.c
powerpc: Dynamically allocate slb_shadow from memblock
2013-12-09 11:40:26 +11:00
pci_32.c
powerpc/pci: Support per-aperture memory offset
2013-05-06 13:40:40 +10:00
pci_64.c
powerpc/pci: Don't use bitfield for force_32bit_msi
2013-08-14 11:50:25 +10:00
pci_dn.c
powerpc: Make PCI device node device tree accesses endian safe
2013-08-14 15:33:31 +10:00
pci_of_scan.c
powerpc: Fix little endian issue in OF PCI scan
2013-10-30 16:01:04 +11:00
pci-common.c
of/irq: simplify args to irq_create_of_mapping
2013-10-24 11:42:57 +01:00
pci-hotplug.c
powerpc/pci: Partial tree hotplug support
2013-07-24 14:18:48 +10:00
pmc.c
bug.h: add include of it to various implicit C users
2012-02-29 17:15:08 -05:00
ppc32.h
powerpc: switch to generic old sigaction()
2013-02-03 18:16:10 -05:00
ppc_ksyms.c
Merge branch 'for-kvm' into next
2013-10-11 18:23:53 +11:00
ppc_save_regs.S
Fix common misspellings
2011-03-31 11:26:23 -03:00
proc_powerpc.c
proc_powerpc: switch to fixed_size_llseek()
2013-06-29 12:57:50 +04:00
process.c
powerpc: Delete non-required instances of include <linux/init.h>
2014-01-15 13:46:44 +11:00
prom_init_check.sh
powerpc/pmac: Early debug output on screen on 64-bit macs
2013-08-14 14:57:40 +10:00
prom_init.c
powerpc: prom_init exception when updating core value
2013-10-11 16:53:16 +11:00
prom_parse.c
powerpc: of_parse_dma_window should take a __be32 *dma_window
2013-08-14 15:33:26 +10:00
prom.c
powerpc: Make cpu_to_chip_id() available when SMP=n
2013-11-21 10:33:44 +11:00
ptrace32.c
powerpc: move debug registers in a structure
2013-10-18 18:44:49 -05:00
ptrace.c
powerpc: PTRACE_PEEKUSR always returns FPR0
2013-12-13 15:48:33 +11:00
reloc_32.S
powerpc: Don't flush/invalidate the d/icache for an unknown relocation type
2013-07-01 11:10:34 +10:00
reloc_64.S
…
rtas_flash.c
powerpc/rtas_flash: Fix validate_flash buffer overflow issue
2013-05-14 14:36:26 +10:00
rtas_pci.c
powerpc/kernel: Fix endian issue in rtas_pci
2013-10-11 16:50:22 +11:00
rtas-proc.c
powerpc: Move /proc/ppc64 to /proc/powerpc update
2010-01-15 13:26:17 +11:00
rtas-rtc.c
powerpc/rtas-rtc: remove sideeffects of printk_ratelimit
2011-06-29 15:30:43 +10:00
rtas.c
powerpc: Make RTAS calls endian safe
2013-08-14 15:33:22 +10:00
rtasd.c
powerpc/pseries: Add /proc interface to control topology updates
2013-04-26 16:08:26 +10:00
setup_32.c
powerpc: Move local setup.h declarations to arch includes
2013-10-30 16:00:31 +11:00
setup_64.c
powerpc/book3s: Introduce exclusive emergency stack for machine check exception.
2013-12-05 16:02:05 +11:00
setup-common.c
powerpc: Fix endian issue in setup-common.c
2013-12-13 15:48:34 +11:00
signal_32.c
powerpc/signals: Improved mark VSX not saved with small contexts fix
2013-11-25 11:50:51 +11:00
signal_64.c
powerpc/signals: Improved mark VSX not saved with small contexts fix
2013-11-25 11:50:51 +11:00
signal.c
powerpc/tm: Fix userspace stack corruption on signal delivery for active transactions
2013-06-01 08:29:23 +10:00
signal.h
powerpc/tm: Fix userspace stack corruption on signal delivery for active transactions
2013-06-01 08:29:23 +10:00
smp-tbsync.c
powerpc: Delete non-required instances of include <linux/init.h>
2014-01-15 13:46:44 +11:00
smp.c
Merge branch 'merge' into next
2013-12-30 15:19:31 +11:00
stacktrace.c
powerpc: various straight conversions from module.h --> export.h
2011-10-31 19:30:44 -04:00
suspend.c
update email address
2010-07-19 10:56:54 +02:00
swsusp_32.S
Fix common misspellings
2011-03-31 11:26:23 -03:00
swsusp_64.c
Disintegrate asm/system.h for PowerPC
2012-03-28 18:30:02 +01:00
swsusp_asm64.S
powerpc: Only save/restore SDR1 if in hypervisor mode
2013-10-31 12:37:29 +11:00
swsusp_booke.S
powerpc/mpc85xx: invalidate TLB after hibernation resume
2013-07-30 15:50:08 -05:00
swsusp.c
Disintegrate asm/system.h for PowerPC
2012-03-28 18:30:02 +01:00
sys_ppc32.c
unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE
2013-05-09 13:46:38 -04:00
syscalls.c
powerpc: Delete non-required instances of include <linux/init.h>
2014-01-15 13:46:44 +11:00
sysfs.c
powerpc/kernel/sysfs: Cleanup set up macros for PMC/non-PMC SPRs
2013-12-02 14:16:04 +11:00
systbl_chk.c
…
systbl_chk.sh
…
systbl.S
…
tau_6xx.c
tree-wide: fix assorted typos all over the place
2009-12-04 15:39:55 +01:00
time.c
powerpc: Make irq_stat.timers_irqs counting more specific
2013-12-02 14:14:50 +11:00
tm.S
powerpc: Use 32 bit loads and stores when operating on condition register values
2013-10-30 16:02:14 +11:00
traps.c
powerpc/book3s: Introduce a early machine check hook in cpu_spec.
2013-12-05 16:04:37 +11:00
udbg_16550.c
powerpc/wsp: Fix early debug build
2013-08-16 10:59:27 +10:00
udbg.c
powerpc: Add a configuration option for early BootX/OpenFirmware debug
2013-06-20 16:55:12 +10:00
uprobes.c
uretprobes/powerpc: Hijack return address
2013-04-13 15:31:56 +02:00
vdso.c
powerpc: Move local setup.h declarations to arch includes
2013-10-30 16:00:31 +11:00
vecemu.c
powerpc: Put FP/VSX and VR state into structures
2013-10-11 17:26:49 +11:00
vector.S
powerpc: Don't corrupt user registers on 32-bit
2013-10-23 22:34:19 +11:00
vio.c
powerpc/iommu: Update the generic code to use dynamic iommu page sizes
2013-12-30 14:17:19 +11:00
vmlinux.lds.S
powerpc/modules: Module CRC relocation fix causes perf issues
2013-07-24 14:18:43 +10:00