NV_FRAGMENT_SIZE
struct wcnss_download_nv_req *req __free(kfree) = kzalloc(sizeof(*req) + NV_FRAGMENT_SIZE,
req->hdr.len = sizeof(*req) + NV_FRAGMENT_SIZE;
req->frag_size = NV_FRAGMENT_SIZE;
if (left <= NV_FRAGMENT_SIZE) {
data += NV_FRAGMENT_SIZE;
left -= NV_FRAGMENT_SIZE;