[PATCH v2 06/10] ARM: tegra: pcie: Add MSI support

[Stephen Warren]

On 06/11/2012 11:07 PM, Thierry Reding wrote:
> * Stephen Warren wrote:
>> On 06/11/2012 09:05 AM, Thierry Reding wrote:
>>> This commit adds support for message signaled interrupts to the
>>> Tegra PCIe controller. Based on code by Krishna Kishore
>>> <kthota at nvidia.com>.
...
>> Why allocate pcie->msi separately; why not include the fields
>> directly into struct tegra_pcie_info *pcie?
...
> Second, and more importantly, this will keep the size of struct 
> tegra_pcie_info smaller if PCI_MSI is not selected because there is
> just one unused pointer instead of five unused fields.

Well, you can always ifdef out the structure fields too, right?