Re: [Xen-devel] [PATCH 10/13] xen/events: Refactor evtchn_to_irq array to be dynamically allocated

[David Vrabel <david.vrabel@xxxxxxxxxx>]

On 24/09/13 15:58, Konrad Rzeszutek Wilk wrote:
> On Fri, Sep 13, 2013 at 05:59:58PM +0100, David Vrabel wrote:
>> From: Malcolm Crossley <malcolm.crossley@xxxxxxxxxx>
>>
>> Refactor static array evtchn_to_irq array to be dynamically allocated by
>> implementing get and set functions for accesses to the array.
>>
>> Two new port ops are added: max_channels (maximum supported number of
>> event channels) and nr_channels (number of currently usable event
>> channels).  For the N-level ABI, these numbers are both the same as
>> the shared data structure is a fixed size. For the FIFO ABI, these
>                             ^^ has

I think either usage is fine.

>> +    if (evtchn_to_irq[row] == NULL) {
>> +            /* Unallocated irq entries return -1 anyway */
>                                            ^^^^^ - are

Unallocated entries can't have a value because they're, well,
unallocated. So I think the original phrasing is more correct.

"get_evtchn_to_irq() returns -1 for unallocated entries anyway" would be
slighter better though.

David

ps. Can you also trim your replies in future?  As in between the grammar
nit-picking there was an actual bug that needed fixing and this is hard
to find with the untrimmed quoting.

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel