On Fri, Jan 3, 2014 at 9:50 AM, Stefano Stabellini
<stefano.stabellini@xxxxxxxxxxxxx> wrote:
>> drivers/xen/events.c | 8 ++++++--
>> 1 file changed, 6 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/xen/events.c b/drivers/xen/events.c
>> index 4035e83..020cd77 100644
>> --- a/drivers/xen/events.c
>> +++ b/drivers/xen/events.c
>> @@ -508,8 +508,12 @@ static int __must_check xen_allocate_irq_gsi(unsigned gsi)
>> /* Legacy IRQ descriptors are already allocated by the arch. */
>> if (gsi < NR_IRQS_LEGACY)
>> irq = gsi;
>> - else
>> - irq = irq_alloc_desc_at(gsi, -1);
>> + else {
>> + /* for x86, irq already get reserved for gsi */
>> + irq = irq_alloc_reserved_desc_at(gsi, -1);
>> + if (irq < 0)
>> + irq = irq_alloc_desc_at(gsi, -1);
>> + }
>
> This is common code. On ARM I get:
>
> drivers/xen/events.c: In function 'xen_allocate_irq_gsi':
> drivers/xen/events.c:513:3: error: implicit declaration of function 'irq_alloc_reserved_desc_at' [-Werror=implicit-function-declaration]
> irq = irq_alloc_reserved_desc_at(gsi, -1);
> ^
> cc1: some warnings being treated as errors
It's strange.
that is defined with irq_alloc_desc_at in parallel in
include/linux/irq.h and kernel/irq/irqdesc.c.
Did you try the whole tree, or just this patch?
Thanks
Yinghai
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