[xen stable-4.20] CI: adjust resolving network interface into PCI device

[patchbot@xxxxxxx]

commit 87ab3ad4456945abdaaa308663d2e78ab4fb5f46
Author:     Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
AuthorDate: Mon Apr 7 14:31:09 2025 +0200
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Wed May 7 15:28:02 2025 +0100

    CI: adjust resolving network interface into PCI device
    
    Change how PCI device lookup is done to handle also USB devices, in
    which case get the USB controller. Instead of taking basename of the
    'device' symlink, resolve the full path (example:
    /sys/devices/pci0000:00/0000:00:09.0/usb4/4-7/4-7:1.0) and take the
    first part after pci0000:00. Theoretically it could be a bridge, but VM
    has flat PCI topology.
    
    Signed-off-by: Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
    (cherry picked from commit 930279d96ca706f05e5860bef4126fc97457d256)
---
 automation/scripts/qubes-x86-64.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/automation/scripts/qubes-x86-64.sh 
b/automation/scripts/qubes-x86-64.sh
index 2b04d281d7..a964ac4b7a 100755
--- a/automation/scripts/qubes-x86-64.sh
+++ b/automation/scripts/qubes-x86-64.sh
@@ -110,7 +110,8 @@ timeout 30s udhcpc -i \"\$interface\"
 pingip=\$(ip -o -4 r show default|cut -f 3 -d ' ')
 ping -c 10 \"\$pingip\"
 echo domU started
-pcidevice=\$(basename \$(readlink /sys/class/net/\$interface/device))
+pcidevice=\$(realpath /sys/class/net/\$interface/device |
+             sed 's#.*pci0000:00/\\([^/]*\\).*#\\1#')
 lspci -vs \$pcidevice
 "
         if [ -n "$PCIDEV_INTR" ]; then
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.20