From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Thu, 10 Nov 2011 13:45:24 +0000 (+0000)
Subject: x86, ioapic: Only print ioapic debug information for IRQs belonging to an ioapic... 
X-Git-Tag: v3.2-rc3~35^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6fd36ba02132c61f67ebefff77fe710bd38ba95a;p=pandora-kernel.git

x86, ioapic: Only print ioapic debug information for IRQs belonging to an ioapic chip

with "apic=verbose" the print_IO_APIC() function tries to print
IRQ to pin mappings for every active irq. It assumes chip_data
is of type irq_cfg and may cause an oops if not.

As the print_IO_APIC() is called from a late_initcall other
chained irq chips may already be registered with custom
chip_data information, causing an oops. This is the case with
intel MID SoC devices with gpio demuxers registered as irq_chips.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
[ -v2: fixed build failure ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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