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authorJason Gunthorpe <jgg@mellanox.com>2018-03-14 14:39:42 -0600
committerJason Gunthorpe <jgg@mellanox.com>2018-03-15 15:58:04 -0600
commit633fb4d9fdaa613308c136293107f28e08e85d25 (patch)
tree29d3e13600f6caedc5b7016afd5c69d0bfbf6245
parent9a657b4c4a9073037121331bb54663bf11f08342 (diff)
downloadlinux-633fb4d9fdaa613308c136293107f28e08e85d25.tar.bz2
RDMA/hns: Use structs to describe the uABI instead of opencoding
Open coding a loose value is not acceptable for describing the uABI in RDMA. Provide the missing struct. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
-rw-r--r--drivers/infiniband/hw/hns/hns_roce_pd.c5
-rw-r--r--include/uapi/rdma/hns-abi.h5
2 files changed, 9 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_pd.c b/drivers/infiniband/hw/hns/hns_roce_pd.c
index bdab2188c04a..4b41e041799c 100644
--- a/drivers/infiniband/hw/hns/hns_roce_pd.c
+++ b/drivers/infiniband/hw/hns/hns_roce_pd.c
@@ -32,6 +32,7 @@
#include <linux/platform_device.h>
#include <linux/pci.h>
+#include <uapi/rdma/hns-abi.h>
#include "hns_roce_device.h"
static int hns_roce_pd_alloc(struct hns_roce_dev *hr_dev, unsigned long *pdn)
@@ -77,7 +78,9 @@ struct ib_pd *hns_roce_alloc_pd(struct ib_device *ib_dev,
}
if (context) {
- if (ib_copy_to_udata(udata, &pd->pdn, sizeof(u64))) {
+ struct hns_roce_ib_alloc_pd_resp uresp = {.pdn = pd->pdn};
+
+ if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) {
hns_roce_pd_free(to_hr_dev(ib_dev), pd->pdn);
dev_err(dev, "[alloc_pd]ib_copy_to_udata failed!\n");
kfree(pd);
diff --git a/include/uapi/rdma/hns-abi.h b/include/uapi/rdma/hns-abi.h
index f7af7e59a5e4..aa774985a0c7 100644
--- a/include/uapi/rdma/hns-abi.h
+++ b/include/uapi/rdma/hns-abi.h
@@ -63,4 +63,9 @@ struct hns_roce_ib_alloc_ucontext_resp {
__u32 qp_tab_size;
__u32 reserved;
};
+
+struct hns_roce_ib_alloc_pd_resp {
+ __u32 pdn;
+};
+
#endif /* HNS_ABI_USER_H */