lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

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

Browse Source 
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>
This commit is contained in:
Mathias Nyman
2011-11-10 13:45:24 +00:00
committed by Ingo Molnar
parent 064a59b6dd
commit 6fd36ba021
2 changed files with 6 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
arch/x86/kernel/nmi.c
View File

@ -29,6 +29,7 @@
#include <asm/traps.h>
#include <asm/mach_traps.h>
#include <asm/nmi.h>
#include <asm/x86_init.h>
#define NMI_MAX_NAMELEN 16
struct nmiaction {