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15/05/2026 19:58, Chao Shi wrote: > > + if (id->lbaf[lbaf].ds < SECTOR_SHIFT || > + check_shl_overflow(le64_to_cpu(id->nsze),> + id->lbaf[lbaf].ds - SECTOR_SHIFT, > + &capacity)) { > + dev_warn_once(ns->ctrl->device, > + "invalid LBA data size %u, skipping namespace\n", > + id->lbaf[lbaf].ds); > + ret = -ENODEV; > + goto out; > + } JFYI, this is giving a C=1 warning: drivers/nvme/host/core.c:2411:13: warning: unsigned value that used to be signed checked against zero? drivers/nvme/host/core.c:2411:13: signed value source I can't seem to quieten it myself, though. BTW, I would have thought that check_shl_overflow would catch id->lbaf[lbaf].ds < SECTOR_SHIFT (so that we don't need the extra check).