IB/mlx4: Avoid implicit enumerated type conversion

BugLink: https://bugs.launchpad.net/bugs/1854216
[ Upstream commit b56511c15713ba6c7572e77a41f7ddba9c1053ec ]

Clang warns when one enumerated type is implicitly converted to another.

drivers/infiniband/hw/mlx4/mad.c:1811:41: warning: implicit conversion
from enumeration type 'enum mlx4_ib_qp_flags' to different enumeration
type 'enum ib_qp_create_flags' [-Wenum-conversion]
                qp_init_attr.init_attr.create_flags = MLX4_IB_SRIOV_TUNNEL_QP;
                                                    ~ ^~~~~~~~~~~~~~~~~~~~~~~

drivers/infiniband/hw/mlx4/mad.c:1819:41: warning: implicit conversion
from enumeration type 'enum mlx4_ib_qp_flags' to different enumeration
type 'enum ib_qp_create_flags' [-Wenum-conversion]
                qp_init_attr.init_attr.create_flags = MLX4_IB_SRIOV_SQP;
                                                    ~ ^~~~~~~~~~~~~~~~~

The type mlx4_ib_qp_flags explicitly provides supplemental values to the
type ib_qp_create_flags. Make that clear to Clang by changing the
create_flags type to u32.

Reported-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>

diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 4610ef45237aa262c8f001d73ceef0aaac197537..ad7547c7ffc26abad63a2b8761ffb2562f6734da 100644 (file)
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1133,7 +1133,7 @@ struct ib_qp_init_attr {
        struct ib_qp_cap        cap;
        enum ib_sig_type        sq_sig_type;
        enum ib_qp_type         qp_type;
-       enum ib_qp_create_flags create_flags;
+       u32                     create_flags;
 
        /*
         * Only needed for special QP types, or when using the RW API.