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Benjamin Herrenschmidt a1c19894b7 PCI: Workaround invalid P2P bridge bus numbers 
Some firmware fail to properly configure P2P bridges, leaving them
with invalid bus numbers. In some cases, this happens on some embedded
4xx boards as the result of the kernel allocating different bus space
than the firmware does to host bridges while not setting
pcibios_assign_all_busses() for various reasons. In other cases, it can
just be bogus firmware.

This adds some sanity checking to the PCI probing code. If a bridge is
found whose primary bus number doesn't match the bus it's sitting on,
or whose secondary bus number not strictly above it's primary bus
number, then the bridge bus numbers are deconfigured in the first pass
of pci_scan_bridge() to be re-assigned in the second pass.

Tested-by: "Ayman El-Khashab" <AymanE@tanisys.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-10-22 16:42:44 -07:00
..
accessibility
acpi PCI: update pci_create_slot() to take a 'hotplug' param 2008-10-22 16:42:38 -07:00
amba
ata
atm
auxdisplay
base memory_probe: fix wrong sysfs file attribute 2008-10-20 08:52:32 -07:00
block x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
bluetooth
cdrom
char Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2008-10-20 14:40:31 -07:00
clocksource Merge branches 'timers/clocksource', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/debug' into v28-timers-for-linus 2008-10-20 13:14:06 +02:00
connector
cpufreq
cpuidle
crypto
dca
dio
dma Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2008-10-20 12:54:30 -07:00
edac edac cell: fix incorrect edac_mode 2008-10-20 08:52:40 -07:00
eisa
firewire
firmware x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
gpio Merge branch 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-20 13:23:01 -07:00
gpu Export tiny shmem_file_setup for DRM-GEM 2008-10-20 16:17:42 -07:00
hid USB: remove warn macro from HID core 2008-10-17 14:41:09 -07:00
hwmon hwmon: applesmc: lighter wait mechanism, drastic improvement 2008-10-20 08:52:35 -07:00
i2c PCI: Check dynids driver_data value for validity 2008-10-20 10:48:35 -07:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6 2008-10-20 13:12:39 -07:00
ieee1394 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2008-10-16 15:02:24 -07:00
infiniband x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
input Merge branch 'for-next' of git://git.o-hand.com/linux-mfd 2008-10-20 09:22:47 -07:00
isdn
leds Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6 2008-10-20 13:12:39 -07:00
lguest
macintosh
mca
md Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2008-10-17 09:00:23 -07:00
media byteorder: remove direct includes of linux/byteorder/swab[b].h 2008-10-20 08:52:40 -07:00
memstick x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
message
mfd Merge branch 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-20 13:23:01 -07:00
misc HP-WMI: additional keycode (or typo) 2008-10-20 08:52:34 -07:00
mmc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc 2008-10-20 10:17:42 -07:00
mtd Merge git://git.infradead.org/mtd-2.6 2008-10-20 09:03:12 -07:00
net misc: replace remaining __FUNCTION__ with __func__ 2008-10-20 16:17:42 -07:00
nubus
of
oprofile
parisc Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2008-10-20 14:40:31 -07:00
parport parport: remove CVS keywords 2008-10-16 11:21:49 -07:00
pci PCI: Workaround invalid P2P bridge bus numbers 2008-10-22 16:42:44 -07:00
pcmcia Merge branch 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-20 13:23:01 -07:00
pnp {pci,pnp} quirks.c: don't use deprecated print_fn_descriptor_symbol() 2008-10-16 16:11:43 -07:00
power Merge git://git.infradead.org/battery-2.6 2008-10-20 09:44:30 -07:00
ps3 ps3: Add passthru support for non-audio streams 2008-10-20 08:05:15 +02:00
rapidio
regulator
rtc Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2008-10-20 14:40:31 -07:00
s390 Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2008-10-17 09:29:55 -07:00
sbus
scsi Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2008-10-20 13:40:47 -07:00
serial Merge branch 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-10-20 13:23:01 -07:00
sh
sn
spi Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2008-10-16 12:40:26 -07:00
ssb
staging Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 2008-10-20 09:09:56 -07:00
tc
telephony phonedev: remove BKL 2008-10-20 08:52:36 -07:00
thermal
uio Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6 2008-10-20 13:42:14 -07:00
usb USB: Fix unused label warnings in drivers/usb/host/ehci-hcd.c 2008-10-20 14:23:29 -07:00
video Remove empty imacfb.c file 2008-10-20 11:32:09 -07:00
virtio
w1 x86: sysfs: kill owner field from attribute 2008-10-20 08:52:42 -07:00
watchdog
xen
zorro
Kconfig
Makefile