Le 24/01/2026 à 03:01, Ethan Nelson-Moore a écrit :

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On Fri, Jan 23, 2026 at 10:11 AM Bjorn Helgaas [off-list ref] wrote:

quoted

Not sure there's value in removing the IDs from pci_ids.h.  It may
lead to unnecessary conflicts later for stable and other backports.

Patches to remove drivers are generally not backported to stable
versions, even if the driver is broken, so I don't think this will be
an issue. There is no point in keeping unused IDs around.

Yes and that's exactly the reason why removing unused IDs will be a problem.

Let's take an exemple: some patch adds PCI_DEVICE_ID_ARECA_1682 after 
PCI_DEVICE_ID_ARECA_1681 in pci_ids.h in the mainline. That patch needs 
to be backported and it conflicts with PCI_VENDOR_ID_S2IO which is not 
anymore in the mainline but is still in stable.

Christophe