Re: [PATCH 04/16] xen/events: replace raw bit ops with functions

[David Vrabel <david.vrabel@citrix.com>]

On 14/10/13 17:30, Boris Ostrovsky wrote:
> On 10/08/2013 08:49 AM, David Vrabel wrote:
>> From: Wei Liu <wei.liu2@citrix.com>
>>
>> Signed-off-by: Wei Liu <wei.liu2@citrix.com>
>> Signed-off-by: David Vrabel <david.vrabel@citrix.com>
>> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
>> ---
>>   drivers/xen/events.c |    3 +--
>>   1 files changed, 1 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/xen/events.c b/drivers/xen/events.c
>> index 359e983..fec5da4 100644
>> --- a/drivers/xen/events.c
>> +++ b/drivers/xen/events.c
>> @@ -1548,13 +1548,12 @@ static int set_affinity_irq(struct irq_data
>> *data, const struct cpumask *dest,
>>   static int retrigger_evtchn(int evtchn)
>>   {
>>       int masked;
>> -    struct shared_info *s = HYPERVISOR_shared_info;
>>         if (!VALID_EVTCHN(evtchn))
>>           return 0;
>>         masked = test_and_set_mask(evtchn);
>> -    sync_set_bit(evtchn, BM(s->evtchn_pending));
>> +    set_evtchn(evtchn);
>>       if (!masked)
>>           unmask_evtchn(evtchn);
> 
> There are other places in this file that manipulate evtchn_pending bits
> (e.g. in unmask_evtchn()). As long as this change is made, those places
> should probably be updated as well.

This in preparation of the evtchn_ops refactor so we only change places
that will turn into port ops.

> You also need a commit message for this and previous patch.

TBH, I think the existing 1 liner is fine.

David