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ppc/xics: An ICS with offset 0 is assumed to be uninitialized 

This will make life easier for dealing with dynamically configured
ICSes such as PHB3

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Benjamin Herrenschmidt 2016-09-19 11:59:32 +05:30 committed by David Gibson
parent 056b977521
commit 15ed653fa4
1 changed files with 1 additions and 1 deletions
include/hw/ppc
xics.h

2
include/hw/ppc/xics.h
View File

@ -149,7 +149,7 @@ struct ICSState {
static inline bool ics_valid_irq(ICSState *ics, uint32_t nr) static inline bool ics_valid_irq(ICSState *ics, uint32_t nr)
{ {
return (nr >= ics->offset) return (ics->offset != 0) && (nr >= ics->offset)
&& (nr < (ics->offset + ics->nr_irqs)); && (nr < (ics->offset + ics->nr_irqs));
} }