android_kernel_xiaomi_sm8350/arch
Andi Kleen 8659c406ad x86: only scan the root bus in early PCI quirks
We found a situation on Linus' machine that the Nvidia timer quirk hit on
a Intel chipset system.  The problem is that the system has a fancy Nvidia
card with an own PCI bridge, and the early-quirks code looking for any
NVidia bridge triggered on it incorrectly.  This didn't lead a boot
failure by luck, but the timer routing code selecting the wrong timer
first and some ugly messages.  It might lead to real problems on other
systems.

I checked all the devices which are currently checked for by early_quirks
and it turns out they are all located in the root bus zero.

So change the early-quirks loop to only scan bus 0.  This incidently also
saves quite some unnecessary scanning work, because early_quirks doesn't
go through all the non root busses.

The graphics card is not on bus 0, so it is not matched anymore.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-09 12:46:22 -08:00
..
alpha PCI: alpha: use generic INTx swizzle from PCI core 2009-01-07 11:13:13 -08:00
arm Merge git://git.infradead.org/mtd-2.6 2009-01-09 12:37:15 -08:00
avr32 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2009-01-09 11:52:14 -08:00
blackfin Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 2009-01-07 12:00:25 -08:00
cris Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-01-07 11:31:52 -08:00
frv
h8300 h8300: introduce asm/swab.h 2009-01-06 18:10:28 -08:00
ia64 Merge branch 'linus' into release 2009-01-09 03:39:43 -05:00
m32r Merge branch 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-01-03 12:04:39 -08:00
m68k trivial: fix an -> a typos in documentation and comments 2009-01-06 11:28:07 +01:00
m68knommu m68knommu: introduce asm/swab.h 2009-01-06 18:10:28 -08:00
mips Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 2009-01-07 15:41:01 -08:00
mn10300
parisc Merge git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 2009-01-09 11:53:07 -08:00
powerpc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile 2009-01-09 12:43:06 -08:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-01-07 11:31:52 -08:00
sh PCI: sh: use generic INTx swizzle from PCI core 2009-01-07 11:13:15 -08:00
sparc generic swap(): sparc: rename swap() to swap_ulong() 2009-01-08 08:31:14 -08:00
um mm: invoke oom-killer from page fault 2009-01-06 15:58:58 -08:00
x86 x86: only scan the root bus in early PCI quirks 2009-01-09 12:46:22 -08:00
xtensa xtensa: introduce swab.h 2009-01-07 12:22:04 -08:00
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