[PATCH 00/13] Refactor pci_is_brdige() to simplify code

Yijing Wang wangyijing at huawei.com
Sat Apr 26 12:49:24 EST 2014

On 2014/4/25 17:42, David Laight wrote:
> From: Yijing Wang
>> This patchset rename the current pci_is_bridge() to pci_has_subordinate(),
>> and introduce a new pci_is_bridge() which determine pci bridge by check
>> dev->hdr_type. The new one is more accurate. PCIe Spec define the pci
>> device is a bridge by the dev->hdr_type = 0x01 || 0x02.
> That is a dangerous rename and is likely to cause difficult to

Hi David,
   I renamed pci_is_bridge() to pci_has_subordinate() because

static inline bool pci_is_bridge(struct pci_dev *pci_dev)
	return !!(pci_dev->subordinate);

which always check dev->subordinate.

> identify bugs in any code you've missed.

What are you referring to ?


> 	David
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