Qian Cai ffd0b25ca0 Revert "powerpc/pci: unmap legacy INTx interrupts when a PHB is removed" ... This reverts commit 3a3181e16f which causes memory corruptions on POWER9 powernv. eg: pci_bus 0035:08: busn_res: [bus 08-0c] is released ============================================================================= BUG kmalloc-16 (Tainted: G W O ): Object already free ----------------------------------------------------------------------------- Disabling lock debugging due to kernel taint INFO: Allocated in pcibios_scan_phb+0x104/0x3e0 age=1960714 cpu=4 pid=1 __slab_alloc+0xa4/0xf0 __kmalloc+0x294/0x330 pcibios_scan_phb+0x104/0x3e0 pcibios_init+0x84/0x124 do_one_initcall+0xac/0x528 kernel_init_freeable+0x35c/0x3fc kernel_init+0x24/0x148 ret_from_kernel_thread+0x5c/0x80 INFO: Freed in pcibios_remove_bus+0x70/0x90 age=0 cpu=16 pid=1717146 kfree+0x49c/0x510 pcibios_remove_bus+0x70/0x90 pci_remove_bus+0xe4/0x110 pci_remove_bus_device+0x74/0x170 pci_remove_bus_device+0x4c/0x170 pci_stop_and_remove_bus_device_locked+0x34/0x50 remove_store+0xc0/0xe0 dev_attr_store+0x30/0x50 sysfs_kf_write+0x68/0xb0 kernfs_fop_write+0x114/0x260 vfs_write+0xe4/0x260 ksys_write+0x74/0x130 system_call_exception+0xf8/0x1d0 system_call_common+0xe8/0x218 INFO: Slab 0x0000000099caaf22 objects=178 used=174 fp=0x00000000006a64b0 flags=0x7fff8000000201 INFO: Object 0x00000000f360132d @offset=30192 fp=0x0000000000000000 Signed-off-by: Qian Cai <cai@lca.pw> Acked-by: Oliver O'Halloran <oohall@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201014182811.12027-1-cai@lca.pw		2020-10-15 13:42:49 +11:00
..
boot	powerpc: Remove support for PowerPC 601	2020-10-08 21:17:13 +11:00
configs	powerpc: switch 85xx defconfigs from legacy ide to libata	2020-10-06 23:22:24 +11:00
crypto	powerpc: Replace HTTP links with HTTPS ones	2020-07-22 00:01:23 +10:00
include	Revert "powerpc/pci: unmap legacy INTx interrupts when a PHB is removed"	2020-10-15 13:42:49 +11:00
kernel	Revert "powerpc/pci: unmap legacy INTx interrupts when a PHB is removed"	2020-10-15 13:42:49 +11:00
kexec	powerpc/kexec_file: Enable early kernel OPAL calls	2020-07-29 23:47:55 +10:00
kvm	powerpc/64s: handle ISA v3.1 local copy-paste context switches	2020-09-08 22:57:12 +10:00
lib	powerpc/sstep: Remove empty if statement checking for invalid form	2020-09-18 20:05:24 +10:00
math-emu	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
mm	powerpc/32s: Setup the early hash table at all time.	2020-10-08 21:17:14 +11:00
net	powerpc/ppc-opcode: Consolidate powerpc instructions from bpf_jit.h	2020-07-16 13:12:42 +10:00
oprofile	powerpc/oprofile: fix spelling mistake "contex" -> "context"	2020-08-25 01:31:33 +10:00
perf	powerpc/hv-gpci: Add sysfs files inside hv-gpci device to show cpumask	2020-10-07 22:34:49 +11:00
platforms	powerpc: Remove support for PowerPC 601	2020-10-08 21:17:13 +11:00
purgatory	powerpc/kexec_file: Enable early kernel OPAL calls	2020-07-29 23:47:55 +10:00
sysdev	powerpc/xive: Make debug routines static	2020-09-18 20:05:25 +10:00
tools	powerpc/tools: Remove 90 line limit in checkpatch script	2020-09-08 22:57:11 +10:00
xmon	powerpc/watchpoint: Add hw_len wherever missing	2020-09-15 22:13:20 +10:00
Kbuild	powerpc/kexec: Move kexec files into a dedicated subdir.	2019-11-21 15:41:34 +11:00
Kconfig	powerpc/rtas: Restrict RTAS requests from userspace	2020-10-06 23:22:27 +11:00
Kconfig.debug	powerpc: Remove Xilinx PPC405/PPC440 support	2020-05-28 23:24:34 +10:00
Makefile	powerpc/32s: Rename head_32.S to head_book3s_32.S	2020-10-08 21:17:14 +11:00
Makefile.postlink	powerpc: unrel_branch_check.sh: use nm to find symbol value	2020-09-02 11:00:22 +10:00