Andy Shevchenko 9d987eba8e powerpc/pci: Unroll two pass loop when scanning bridges ...

The current scanning code is really hard to understand because it calls the
same function in a loop where pass value is changed without any comments
explaining it:

  for (pass = 0; pass < 2; pass++)
    for_each_pci_bridge(dev, bus)
      max = pci_scan_bridge(bus, dev, max, pass);

Unfamiliar reader cannot tell easily what is the purpose of this loop
without looking at internals of pci_scan_bridge().

In order to make this bit easier to understand, open-code the loop in
pci_scan_child_bus() and pci_hp_add_bridge() with added comments.

No functional changes intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>

2017-12-18 23:05:52 -06:00

..

trace

Merge tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2017-11-16 12:47:46 -08:00

vdso32

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

vdso64

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

.gitignore

…

align.c

powerpc: Fix check for copy/paste instructions in alignment handler

2017-10-25 12:42:35 +02:00

asm-offsets.c

Merge tag 'kvm-4.15-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2017-11-16 13:00:24 -08:00

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

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

cacheinfo.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

cacheinfo.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

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

powerpc: Various typo fixes

2016-06-14 13:58:26 +10:00

cpu_setup_44x.S

…

cpu_setup_fsl_booke.S

powerpc/cache: add cache flush operation for various e500

2016-03-04 23:44:51 -06:00

cpu_setup_pa6t.S

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cpu_setup_power.S

powerpc/64s: Initialize ISAv3 MMU registers before setting partition table

2017-12-06 23:32:43 +11:00

cpu_setup_ppc970.S

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cputable.c

powerpc/64s: Fix Power9 DD2.0 workarounds by adding DD2.1 feature

2017-11-15 14:25:42 +11:00

crash_dump.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

crash.c

powerpc/fadump: remove dependency with CONFIG_KEXEC

2017-05-08 17:15:11 -07:00

dbell.c

powerpc: Introduce msgsnd/doorbell barrier primitives

2017-04-13 23:34:33 +10:00

dma-iommu.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

dma-swiotlb.c

treewide: Constify most dma_map_ops structures

2017-01-24 12:23:35 -05:00

dma.c

powerpc: merge __dma_set_mask into dma_set_mask

2017-06-28 06:54:55 -07:00

dt_cpu_ftrs.c

powerpc/64s: Fix Power9 DD2.1 logic in DT CPU features

2017-11-22 23:17:01 +11:00

eeh_cache.c

powerpc/eeh: Fix pr_debug()s in eeh_cache.c

2016-07-08 22:09:50 +10:00

eeh_dev.c

powerpc/eeh: Create PHB PEs after EEH is initialized

2017-09-21 14:56:00 +10:00

eeh_driver.c

Merge tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2017-11-16 12:47:46 -08:00

eeh_event.c

powerpc/pci: Always print PHB and PE numbers as hexadecimal

2016-11-22 11:57:07 +11:00

eeh_pe.c

powerpc/eeh: Stop using do_gettimeofday()

2017-11-06 17:40:00 +11:00

eeh_sysfs.c

powerpc/eeh: Remove unnecessary config_addr from eeh_dev

2017-08-31 14:26:09 +10:00

eeh.c

powerpc/powernv: Rework EEH initialization on powernv

2017-09-26 11:19:07 +10:00

entry_32.S

powerpc/32: Avoid risk of unrecoverable TLBmiss inside entry_32.S

2017-08-15 22:55:53 +10:00

entry_64.S

powerpc/64s: Replace CONFIG_PPC_STD_MMU_64 with CONFIG_PPC_BOOK3S_64

2017-11-06 16:48:14 +11:00

epapr_hcalls.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

epapr_paravirt.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2014-06-10 18:54:22 -07:00

exceptions-64e.S

powerpc/64e: Fix hang when debugging programs with relocated kernel

2017-04-30 01:05:18 -05:00

exceptions-64s.S

Merge tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2017-11-16 12:47:46 -08:00

fadump.c

Revert "powerpc: Do not call ppc_md.panic in fadump panic notifier"

2017-12-05 23:21:46 +11:00

firmware.c

…

fpu.S

Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

2016-10-14 14:26:58 -07:00

fsl_booke_entry_mapping.S

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

head_8xx.S

powerpc/8xx: Reduce DTLB miss handler by one insn

2017-08-15 22:55:55 +10:00

head_32.S

powerpc: Fix DABR match on hash based systems

2017-11-13 22:12:48 +11:00

head_40x.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

head_44x.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

head_64.S

powerpc/powernv: Avoid waiting for secondary hold spinloop with OPAL

2017-11-10 22:00:54 +11:00

head_booke.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

head_fsl_booke.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

hw_breakpoint.c

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next

2017-02-18 21:37:14 +11:00

idle_6xx.S

…

idle_book3e.S

…

idle_book3s.S

powerpc/64s: Fix Power9 DD2.0 workarounds by adding DD2.1 feature

2017-11-15 14:25:42 +11:00

idle_e500.S

powerpc/e500mc: Remove dead L2 flushing code in idle_e500.S

2015-06-02 21:37:19 -05:00

idle_power4.S

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idle.c

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ima_kexec.c

powerpc: ima: send the kexec buffer to the next kernel

2016-12-20 09:48:44 -08:00

io-workarounds.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

io.c

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iomap.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

iommu.c

powerpc/iommu: Use permission-specific DEVICE_ATTR variants

2017-09-01 16:42:54 +10:00

irq.c

powerpc/64: Fix latency tracing for lazy irq replay

2017-11-06 16:48:07 +11:00

isa-bridge.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

jump_label.c

jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP}

2015-08-03 11:34:12 +02:00

kexec_elf_64.c

powerpc: ima: send the kexec buffer to the next kernel

2016-12-20 09:48:44 -08:00

kgdb.c

powerpc/8xx: Getting rid of remaining use of CONFIG_8xx

2017-08-10 23:32:12 +10:00

kprobes-ftrace.c

powerpc/kprobes: Do not disable interrupts for optprobes and kprobes_on_ftrace

2017-11-12 23:51:41 +11:00

kprobes.c

powerpc/kprobes: refactor kprobe_lookup_name for safer string operations

2017-11-12 23:51:43 +11:00

kvm_emul.S

…

kvm.c

powerpc/64: Fix watchdog configuration regressions

2017-08-31 14:26:00 +10:00

l2cr_6xx.S

powerpc/l2cr_6xx: Fix invalid use of register expressions

2017-08-15 21:04:32 +10:00

legacy_serial.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

machine_kexec_32.c

…

machine_kexec_64.c

powerpc/64s: Replace CONFIG_PPC_STD_MMU_64 with CONFIG_PPC_BOOK3S_64

2017-11-06 16:48:14 +11:00

machine_kexec_file_64.c

resource: Provide resource struct in resource walk callback

2017-11-07 15:35:57 +01:00

machine_kexec.c

powerpc: Update of_remove_property() call sites to remove null checking

2016-05-11 21:54:04 +10:00

Makefile

Merge tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2017-11-16 12:47:46 -08:00

mce_power.c

Merge branch 'fixes' into next

2017-11-10 20:55:03 +11:00

mce.c

powerpc/mce: hookup memory_failure for UE errors

2017-10-16 23:12:02 +11:00

misc_32.S

powerpc/40x: Clear MSR_DR in one insn instead of two

2017-06-02 19:20:43 +10:00

misc_64.S

powerpc/kexec: Fix kexec/kdump in P9 guest kernels

2017-11-24 16:49:37 +11:00

misc.S

ppc: move exports to definitions

2016-08-07 23:50:09 -04:00

module_32.c

powerpc/module: Only try to generate the ftrace_caller() stub once

2016-03-07 14:53:53 +11:00

module_64.c

powerpc/modules: Use WARN_ON() in stub_for_addr()

2017-10-13 19:41:57 +11:00

module.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

msi.c

powerpc: Remove MSI-related PCI controller ops from ppc_md

2015-06-02 11:47:45 +10:00

nvram_64.c

powerpc/nvram: use memdup_user

2017-06-27 17:02:50 -07:00

of_platform.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

optprobes_head.S

powerpc/kprobes: Don't save/restore DAR/DSISR to/from pt_regs for optprobes

2017-08-24 16:19:01 +10:00

optprobes.c

powerpc/kprobes: Do not disable interrupts for optprobes and kprobes_on_ftrace

2017-11-12 23:51:41 +11:00

paca.c

powerpc/64s: mm_context.addr_limit is only used on hash

2017-11-13 23:35:43 +11:00

pci_32.c

powerpc: Convert to using %pOF instead of full_name

2017-08-23 22:27:04 +10:00

pci_64.c

powerpc/64s: Replace CONFIG_PPC_STD_MMU_64 with CONFIG_PPC_BOOK3S_64

2017-11-06 16:48:14 +11:00

pci_dn.c

powerpc/pci: Remove OF node back pointer from pci_dn

2017-08-31 14:26:12 +10:00

pci_of_scan.c

powerpc/pci: Use for_each_pci_bridge() helper

2017-12-18 23:05:52 -06:00

pci-common.c

vgaarb: Select a default VGA device even if there's no legacy VGA

2017-10-18 10:04:56 +02:00

pci-hotplug.c

powerpc/pci: Unroll two pass loop when scanning bridges

2017-12-18 23:05:52 -06:00

pmc.c

…

ppc32.h

…

ppc_save_regs.S

…

proc_powerpc.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

process.c

powerpc: Do not assign thread.tidr if already assigned

2017-11-29 19:56:18 +11:00

prom_init_check.sh

powerpc: Simplify symbol check in prom_init_check.sh

2014-09-25 23:14:46 +10:00

prom_init.c

powerpc/xive: add XIVE Exploitation Mode to CAS

2017-09-02 21:02:38 +10:00

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/64s: Replace CONFIG_PPC_STD_MMU_64 with CONFIG_PPC_BOOK3S_64

2017-11-06 16:48:14 +11:00

ptrace32.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

ptrace.c

powerpc/tm: Flush TM only if CPU has TM feature

2017-09-20 13:30:09 +10:00

reloc_32.S

…

reloc_64.S

powerpc/asm: Convert .llong directives to .8byte

2017-08-31 14:26:47 +10:00

rtas_flash.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

rtas_pci.c

powerpc/kernel: Change retrieval of pci_dn

2017-08-31 14:26:40 +10:00

rtas-proc.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rtas-rtc.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

rtas.c

locking/arch, powerpc/rtas: Use arch_spin_lock() instead of arch_spin_lock_flags()

2017-10-18 15:15:07 +02:00

rtasd.c

powerpc: Only obtain cpu_hotplug_lock if called by rtasd

2017-06-23 09:32:11 +02:00

setup_32.c

powerpc/32: remove a NOP from memset()

2017-09-01 16:42:46 +10:00

setup_64.c

powerpc/64: Set DSCR default initially from SPR

2017-11-10 22:11:35 +11:00

setup-common.c

Revert "powerpc: Do not call ppc_md.panic in fadump panic notifier"

2017-12-05 23:21:46 +11:00

setup.h

powerpc/64: Set DSCR default initially from SPR

2017-11-10 22:11:35 +11:00

signal_32.c

Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2017-11-17 11:54:55 -08:00

signal_64.c

Merge tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2017-11-16 12:47:46 -08:00

signal.c

powerpc/signal: Properly handle return value from uprobe_deny_signal()

2017-11-13 10:53:05 +11:00

signal.h

powerpc: tm: Rename transct_(*) to ck(\1)_state

2016-10-04 20:33:16 +11:00

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

powerpc/smp: Add Power9 scheduler topology

2017-08-31 18:16:08 +10:00

stacktrace.c

powerpc: Make /proc/self/stack always print the current stack

2017-03-28 14:43:59 +11:00

suspend.c

nosave: consolidate __nosave_{begin,end} in <asm/sections.h>

2014-10-09 22:26:04 -04:00

swsusp_32.S

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

swsusp_64.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/nmi.h>

2017-03-02 08:42:30 +01:00

swsusp_asm64.S

powerpc: Fix invalid use of register expressions

2017-08-10 22:29:41 +10:00

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

powerpc/swsusp: Include suspend.h to silence sparse warnings

2017-03-20 19:02:49 +11:00

sys_ppc32.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

syscalls.c

powerpc/tracing: Allow tracing of mmap syscalls

2017-04-12 22:32:43 +10:00

sysfs.c

powerpc/64: Set DSCR default initially from SPR

2017-11-10 22:11:35 +11:00

systbl_chk.c

powerpc: Standardise on NR_syscalls rather than __NR_syscalls.

2015-11-26 22:11:17 +11:00

systbl_chk.sh

powerpc: Standardise on NR_syscalls rather than __NR_syscalls.

2015-11-26 22:11:17 +11:00

systbl.S

powerpc/asm: Convert .llong directives to .8byte

2017-08-31 14:26:47 +10:00

tau_6xx.c

treewide: setup_timer() -> timer_setup()

2017-11-21 15:57:07 -08:00

time.c

powerpc: use spin loop primitives in some functions

2017-07-02 20:40:24 +10:00

tm.S

Merge tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2017-11-16 12:47:46 -08:00

traps.c

powerpc: Remove facility loadups on transactional {fp, vec, vsx} unavailable

2017-11-06 20:39:34 +11:00

udbg_16550.c

powerpc: Fix bad NULL pointer check in udbg_uart_getc_poll()

2014-11-12 13:47:20 +11:00

udbg.c

powerpc: Remove the celleb support

2015-04-07 17:15:13 +10:00

uprobes.c

powerpc/uprobes: Implement arch_uretprobe_is_alive()

2017-08-24 16:19:21 +10:00

vdso.c

powerpc/64: Clean up ppc64_caches using a struct per cache

2017-02-06 19:46:04 +11:00

vecemu.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

vector.S

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

vmlinux.lds.S

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

watchdog.c

Merge tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

2017-11-16 12:47:46 -08:00