Hi Greg,
Thanks for the quick review!
On 18/12/16 12:51 AM, Greg Kroah-Hartman wrote:
On Sat, Dec 17, 2016 at 10:09:22AM -0700, Logan Gunthorpe wrote:
+struct switchtec_dev {
+ struct pci_dev *pdev;
+ struct msix_entry *msix;
+ struct device *dev;
+ struct kref kref;
Why do you have a pointer to a device, yet a kref as well? Just have
this structure embed a 'struct device' in itself, like you did for a
kref, and you will be fine. Otherwise you are dealing with two
different sets of reference counting here, for no good reason.
Ok, understood. I had referenced the device dax driver which did it this
way in 4.8 but looks like it was changed to the way you suggest in 4.9.
+#define stdev_pdev(stdev) ((stdev)->pdev)
+#define stdev_pdev_dev(stdev) (&stdev_pdev(stdev)->dev)
+#define stdev_name(stdev) pci_name(stdev_pdev(stdev))
+#define stdev_dev(stdev) ((stdev)->dev)
Ick, just open code these please. That's a huge hint your use of the
driver model is not correct :)
Ok, will do. For reference, I was copying
drivers/ntb/hw/intel/ntb_hw_intel.h
which does a similar thing.
Logan
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