Alexander Gordeev <agordeev@xxxxxxxxxx> writes:
> On Tue, Feb 04, 2014 at 08:32:12PM +0200, Kalle Valo wrote:
>> Alexander Gordeev <agordeev@xxxxxxxxxx> writes:
>>
>> I don't understand how this is superfluous. When I read the
>> documentation for pci_enable_msi_block() it states that if it can't
>> allocate all requests, it will return the number requests it could
>> allocate. And in that case we want to fall back other modes.
>>
>> Am I missing something?
>
> Yep. The documentation states 'could have been allocated', not 'could
> allocate'. IOW, MSIs are *not* enabled if a positive value returned.
> The code I changed tries to disable MSIs in such case, although it is
> not necessary, nor required. Just superfluous.
Ah, thanks for explaining that. I added this to the commit log (I hate
empty commit logs anyway):
ath10k: Get rid of superfluous call to pci_disable_msi()
The documentation states that pci_enable_msi_block() returns the number of
requests 'could have been allocated', not 'could allocate'. IOW, MSIs are *not*
enabled if a positive value returned.
kvalo: add commit log based on Alexander's email
Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxxxx>
Is it ok for me to take these patches to my ath.git tree or would you
prefer to route them some other way?
--
Kalle Valo
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