On Fri, Dec 28, 2012 at 1:55 AM, Lin Feng <linfeng@xxxxxxxxxxxxxx> wrote:
>
>
> On 12/28/2012 03:45 PM, Yinghai Lu wrote:
>> On Thu, Dec 27, 2012 at 11:31 PM, Lin Feng <linfeng@xxxxxxxxxxxxxx> wrote:
>>> pci_reassigndev_resource_alignment() potentially calls
>>> pci_specified_resource_alignment() twice, which is redundant.
>>>
>>> pci_is_reassigndev() is only called in pci_reassigndev_resource_alignment(),
>>> and from sematic/functionality aspects pci_specified_resource_alignment() is
>>> sufficient to substitute, so also make some cleanup.
>>>
>>> Signed-off-by: Lin Feng <linfeng@xxxxxxxxxxxxxx>
>>> Cc: Yinghai Lu <yinghai@xxxxxxxxxx>
>>> ---
>>> drivers/pci/pci.c | 16 ++--------------
>>> 1 files changed, 2 insertions(+), 14 deletions(-)
>>>
>>> diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
>>> index 5cb5820..789f401 100644
>>> --- a/drivers/pci/pci.c
>>> +++ b/drivers/pci/pci.c
>>> @@ -3766,18 +3766,6 @@ resource_size_t pci_specified_resource_alignment(struct pci_dev *dev)
>>> return align;
>>> }
>>>
>>> -/**
>>> - * pci_is_reassigndev - check if specified PCI is target device to reassign
>>> - * @dev: the PCI device to check
>>> - *
>>> - * RETURNS: non-zero for PCI device is a target device to reassign,
>>> - * or zero is not.
>>> - */
>>> -int pci_is_reassigndev(struct pci_dev *dev)
>>> -{
>>> - return (pci_specified_resource_alignment(dev) != 0);
>>> -}
>>> -
>>> /*
>>> * This function disables memory decoding and releases memory resources
>>> * of the device specified by kernel's boot parameter 'pci=resource_alignment='.
>>> @@ -3792,7 +3780,8 @@ void pci_reassigndev_resource_alignment(struct pci_dev *dev)
>>> resource_size_t align, size;
>>> u16 command;
>>>
>>> - if (!pci_is_reassigndev(dev))
>>> + align = pci_specified_resource_alignment(dev);
>>> + if (!align)
>>> return;
>>>
>>> if (dev->hdr_type == PCI_HEADER_TYPE_NORMAL &&
>>> @@ -3808,7 +3797,6 @@ void pci_reassigndev_resource_alignment(struct pci_dev *dev)
>>> command &= ~PCI_COMMAND_MEMORY;
>>> pci_write_config_word(dev, PCI_COMMAND, command);
>>>
>>> - align = pci_specified_resource_alignment(dev);
>>> for (i = 0; i < PCI_BRIDGE_RESOURCES; i++) {
>>> r = &dev->resource[i];
>>> if (!(r->flags & IORESOURCE_MEM))
>>> --
>>> 1.7.1
>>>
>>
>> looks the same as the one that i posted 6 months ago.
>>
>> http://copilotco.com/mail-archives/linux-kernel.2012/msg18498.html
> Sorry, I didn't notice your patchset before :)
> Yes, they are the same. But why does nobody care this?
I applied Yinghai's patch to my pci/misc branch, headed for v3.9.
Bjorn
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