在 2017/8/18 0:34, Bjorn Helgaas 写道:
On Thu, Aug 17, 2017 at 11:32:21AM -0400, Keith Busch wrote:
On Thu, Aug 17, 2017 at 07:48:24PM +0800, Dongdong Liu wrote:
Use a local "struct device *dev" for brevity and consistency in DPC driver.
No functional change intended.
I think there is a functional change here:
@@ -119,10 +120,11 @@ static int dpc_probe(struct pcie_device *dev)
{
struct dpc_dev *dpc;
struct pci_dev *pdev = dev->port;
+ struct device *device = &pdev->dev;
int status;
u16 ctl, cap;
- dpc = devm_kzalloc(&dev->device, sizeof(*dpc), GFP_KERNEL);
+ dpc = devm_kzalloc(device, sizeof(*dpc), GFP_KERNEL);
if (!dpc)
return -ENOMEM;
We were using the pcie_device's device for the devres API, but now it's
the pci_dev's. That will change the lifetime of memory allocations. I'm
not sure that it matters at th emoment, but it's certainly different.
Yep. I'll drop this rev. When you repost it, please make the
cosmetic change last in the series so the important thing is easier to
backport.
Ok, I will restore the change and adjust the PATCH sequence in PATCH V4.
Thanks,
Dongdong
.
