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virtio_pmem: fix sparse warning

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This patch fixes below sparse warning related to __virtio
type in virtio pmem driver. This is reported by Intel test
bot on linux-next tree.

nd_virtio.c:56:28: warning: incorrect type in assignment
                                (different base types)
nd_virtio.c:56:28:    expected unsigned int [unsigned] [usertype] type
nd_virtio.c:56:28:    got restricted __virtio32
nd_virtio.c:93:59: warning: incorrect type in argument 2
                                (different base types)
nd_virtio.c:93:59:    expected restricted __virtio32 [usertype] val
nd_virtio.c:93:59:    got unsigned int [unsigned] [usertype] ret

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Pankaj Gupta <pagupta@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Pankaj Gupta 2019-07-12 10:46:10 +05:30 committed by Dan Williams
parent b21fec4140
commit 8c2e408e73
2 changed files with 4 additions and 4 deletions
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4
drivers/nvdimm/nd_virtio.c
View File

@ -53,7 +53,7 @@ static int virtio_pmem_flush(struct nd_region *nd_region)
init_waitqueue_head(&req_data->host_acked); init_waitqueue_head(&req_data->host_acked);
init_waitqueue_head(&req_data->wq_buf); init_waitqueue_head(&req_data->wq_buf);
INIT_LIST_HEAD(&req_data->list); INIT_LIST_HEAD(&req_data->list);
req_data->req.type = cpu_to_virtio32(vdev, VIRTIO_PMEM_REQ_TYPE_FLUSH); req_data->req.type = cpu_to_le32(VIRTIO_PMEM_REQ_TYPE_FLUSH);
sg_init_one(&sg, &req_data->req, sizeof(req_data->req)); sg_init_one(&sg, &req_data->req, sizeof(req_data->req));
sgs[0] = &sg; sgs[0] = &sg;
sg_init_one(&ret, &req_data->resp.ret, sizeof(req_data->resp)); sg_init_one(&ret, &req_data->resp.ret, sizeof(req_data->resp));
@ -90,7 +90,7 @@ static int virtio_pmem_flush(struct nd_region *nd_region)
} else { } else {
/* A host repsonse results in "host_ack" getting called */ /* A host repsonse results in "host_ack" getting called */
wait_event(req_data->host_acked, req_data->done); wait_event(req_data->host_acked, req_data->done);
err = virtio32_to_cpu(vdev, req_data->resp.ret); err = le32_to_cpu(req_data->resp.ret);
} }
kfree(req_data); kfree(req_data);

4
include/uapi/linux/virtio_pmem.h
View File

@ -23,12 +23,12 @@ struct virtio_pmem_config {
struct virtio_pmem_resp { struct virtio_pmem_resp {
/* Host return status corresponding to flush request */ /* Host return status corresponding to flush request */
__u32 ret; __le32 ret;
}; };
struct virtio_pmem_req { struct virtio_pmem_req {
/* command type */ /* command type */
__u32 type; __le32 type;
}; };
#endif #endif