powerof2
#ifndef powerof2
if (!powerof2(scctx->isc_nrxd[i])) {
if (!powerof2(scctx->isc_ntxd[i])) {
MPASS(powerof2(sctx->isc_nrxd_min[i]));
MPASS(powerof2(sctx->isc_nrxd_max[i]));
MPASS(powerof2(sctx->isc_nrxd_default[i]));
MPASS(powerof2(sctx->isc_ntxd_min[i]));
MPASS(powerof2(sctx->isc_ntxd_max[i]));
MPASS(powerof2(sctx->isc_ntxd_default[i]));
KASSERT(powerof2(alignment), ("%s: alignment is not a power of 2: %#lx",
KASSERT(powerof2(boundary), ("%s: boundary is not a power of 2: %#jx",
KASSERT(powerof2(count), ("buf ring must be size power of 2"));
CTASSERT(powerof2(SBUF_MAXEXTENDSIZE));
CTASSERT(powerof2(SBUF_MAXEXTENDINCR));