linux-kernel - Re: [PATCH v2 0/2] block: Use pci_enable_msix_exact() instead of pci_enable

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Date:	Thu, 13 Mar 2014 11:39:32 -0600
From:	Jens Axboe <axboe@...nel.dk>
To:	Alexander Gordeev <agordeev@...hat.com>
CC:	Bjorn Helgaas <bhelgaas@...gle.com>, linux-kernel@...r.kernel.org,
	Mike Miller <mike.miller@...com>, iss_storagedev@...com,
	linux-pci@...r.kernel.org, Keith Busch <keith.busch@...el.com>,
	Matthew Wilcox <willy@...ux.intel.com>
Subject: Re: [PATCH v2 0/2] block: Use pci_enable_msix_exact() instead of
 pci_enable_msix()

On 03/13/2014 11:36 AM, Alexander Gordeev wrote:
> On Thu, Mar 13, 2014 at 09:28:20AM -0600, Jens Axboe wrote:
>> On 03/12/2014 10:12 PM, Bjorn Helgaas wrote:
>>> On Wed, Feb 26, 2014 at 10:02:40AM +0100, Alexander Gordeev wrote:
>>>> Changes since v1:
>>>>    - cciss: patch #1: a weird 'goto' removed;
>>>>    - cciss: patch #2: pci_enable_msix_exact() used, not pci_enable_msix_range();
>>>>    - rsxx: patch dropped - no need to change anything;
>>>>
>>>> As result of deprecation of MSI-X/MSI enablement functions
>>>> pci_enable_msix() and pci_enable_msi_block() all drivers
>>>> using these two interfaces need to be updated to use the
>>>> new pci_enable_msi_range()  or pci_enable_msi_exact()
>>>> and pci_enable_msix_range() or pci_enable_msix_exact()
>>>> interfaces.
>>>>
>>>> This change updates 'cciss' only, but there is also 'nvme' update
>>>> pending - I am waiting for Intel guys to clarify if they want to
>>>> route it thru their tree. If not, I will post the 'nvme' patch as
>>>> a follow-up to this series.
>>>
>>> Hi Jens,
>>>
>>> I'd like to get these merged during the v3.15 merge window.  I'd be glad to
>>> review and apply them through my tree, unless you want to do it.  They do
>>> depend on f7fc32c, which went in after the v3.14 merge window, which makes
>>> it a bit of a hassle.
>>
>> My 3.15/drivers (and core) branch are based off 3.14-rc3, so it
>> should be OK. I've queued them up, as it's mostly a followup to the
>> previous ones from Alexander.
>
> Oh-oh, cciss patch #2 requires commit 3ce4e86 ("PCI/MSI: Add
> pci_enable_msi_exact() and pci_enable_msix_exact()") which was
> pulled to 3.14-rc4 only. Sorry for failing to clarify that :(
>
> And I also notice 3111cc3 ("skd: Use pci_enable_msix_exact() instead
> of pci_enable_msix_range()") in your tree also should not compile :(

Gah, please be a bit more diligent in the future, that's a lot of 
breakage for a small series. If it's this broken, I'll have to rebase 
the branch, which I attempt to never do for the "official" branches.

-- 
Jens Axboe

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