Re: [RFC PATCH v10 3/5] PCI: make pci_dev_is_disconnected() helper public for other drivers

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On 1/10/2024 1:25 PM, Baolu Lu wrote:
On 12/29/23 1:05 AM, Ethan Zhao wrote:
Make pci_dev_is_disconnected() public so that it can be called from
Intel VT-d driver to quickly fix/workaround the surprise removal
unplug hang issue for those ATS capable devices on PCIe switch downstream
hotplug capable ports.

Beside pci_device_is_present() function, this one has no config space
space access, so is light enough to optimize the normal pure surprise
removal and safe removal flow.

Tested-by: Haorong Ye<yehaorong@xxxxxxxxxxxxx>
Signed-off-by: Ethan Zhao<haifeng.zhao@xxxxxxxxxxxxxxx>
---
  drivers/pci/pci.h   | 5 -----
  include/linux/pci.h | 5 +++++
  2 files changed, 5 insertions(+), 5 deletions(-)

This should be moved before PATCH 2/5? Otherwise, PATCH 2/5 couldn't be

Seems the order was mixed when send-email was abort by network connection

and sent again.

[3/5] &[4/5]  goes to upset.  though the subject order is right.

anyway will resend in next version.


Thanks,

Ethan

compiled.

Best regards,
baolu




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