> From: Ethan Zhao <haifeng.zhao@xxxxxxxxxxxxxxx> > Sent: Tuesday, January 30, 2024 1:26 PM > > On 1/29/2024 4:50 PM, Tian, Kevin wrote: > >> From: Ethan Zhao <haifeng.zhao@xxxxxxxxxxxxxxx> > >> Sent: Monday, January 29, 2024 11:49 AM > >> > >> 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 > > s/Beside/Unlike/ > > > >> space access, so is light enough to optimize the normal pure surprise > >> removal and safe removal flow. > > somehow this paragraph belongs to the patch using it. The 1st paragraph > > is sufficient for the reason of exposure. > > pci_device_is_present() is aleardy exported symbol, why not just use it ? > > Also try to make it clear, the difference and justification. > I misread it.
