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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: UrXg6ua1Dmrakq1gXpabvhjHHVaEj/ByC85FoVq4eZfTyNRRre+08eOp7cll3rxQdLIX97zdCCpoKpTtr1Ag36CcqHluX6rkPZlkXeUGgJvhgplb1TkIQftSLhn+uQgop+NemvxE4W4I9/di3kf+BinZZypUw+E8hodKk9PVDUHramL5skJePXppnfHyvSLKUWuX5CzmerXn1VOIT4DRprRKpkhGyF/qaujmjCgDDVOafVlS7p60/ITUoUn7e7ef/ldLVPyALuV5BMN+dchQzs/58dJNgql0Zo9y6v41g/QfJe5HY4OTJ2gg7dfsCDAdhtvPqRtkJTtNngpPXaIN6lzV956/8jMjEyLxYzaWaO9ENu4thDTyhkv5V5d/W45l4rksN/UumS2oq8V2xwQ+1TFrnPcad6HI/PRKRXAyWTU6SK3JLe4g4BpPTMjjXYNl X-ExternalRecipientOutboundConnectors: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Oct 2026 16:53:10.7823 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: bd4e7a7d-5085-420d-d86b-08df23ca4dfc X-MS-Exchange-CrossTenant-Id: 0bc7f26d-0264-416e-a6fc-8352af79c58f X-MS-Exchange-CrossTenant-AuthSource: DU2PEPF00028D02.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: Internet X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR08MB10121 > A previous commit added an unconditional blocker for CPR migrations. > That is to refuse CPR gracefully instead of crashing and for the previous > commits to remain bisectable. >=20 > Now the restore path is complete: the FD is preserved, in-flight URBs > are drained and replayed, the device is handed off across cpr-transfer, > and the endpoints and isochronous streams are reconstructed on the > target. So let's lift the CPR blocker for the devices which satisfy the > preconditions. >=20 > Still, the remaining preconditions for CPR to work are: >=20 > * We must open host device FD ourselves, so that libusb owns the FD. > This way we're able to preserve the FD during CPR; > * Device ID must be provided as a unique stable key for CPR FD registry. >=20 > Use them to guard the blocker addition. Apart from that, prohibit CPR on > WIN32 platform and on hosts with older libusb versions. >=20 > Signed-off-by: Andrey Drobyshev Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.vzint.dev/#/patchset/20261006-usb-= host_v3-v8-0-72ae4fb8977b@virtuozzo.com?part=3D14