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Wed, 26 Sep 2018 22:14:41 -0700 (PDT) From: Nathan Chancellor To: Moni Shoua , Doug Ledford , Jason Gunthorpe Cc: linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Nick Desaulniers , Nathan Chancellor Subject: [PATCH v3] IB/rxe: Remove unnecessary enum values Date: Wed, 26 Sep 2018 22:12:23 -0700 Message-Id: <20180927051222.23084-1-natechancellor@gmail.com> X-Mailer: git-send-email 2.19.0 In-Reply-To: <20180927050156.20023-1-natechancellor@gmail.com> References: <20180927050156.20023-1-natechancellor@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Clang warns when an emumerated type is implicitly converted to another. drivers/infiniband/sw/rxe/rxe.c:106:27: warning: implicit conversion from enumeration type 'enum rxe_device_param' to different enumeration type 'enum ib_atomic_cap' [-Wenum-conversion] rxe->attr.atomic_cap = RXE_ATOMIC_CAP; ~ ^~~~~~~~~~~~~~ drivers/infiniband/sw/rxe/rxe.c:131:22: warning: implicit conversion from enumeration type 'enum rxe_port_param' to different enumeration type 'enum ib_port_state' [-Wenum-conversion] port->attr.state = RXE_PORT_STATE; ~ ^~~~~~~~~~~~~~ drivers/infiniband/sw/rxe/rxe.c:132:24: warning: implicit conversion from enumeration type 'enum rxe_port_param' to different enumeration type 'enum ib_mtu' [-Wenum-conversion] port->attr.max_mtu = RXE_PORT_MAX_MTU; ~ ^~~~~~~~~~~~~~~~ drivers/infiniband/sw/rxe/rxe.c:133:27: warning: implicit conversion from enumeration type 'enum rxe_port_param' to different enumeration type 'enum ib_mtu' [-Wenum-conversion] port->attr.active_mtu = RXE_PORT_ACTIVE_MTU; ~ ^~~~~~~~~~~~~~~~~~~ drivers/infiniband/sw/rxe/rxe.c:151:24: warning: implicit conversion from enumeration type 'enum rxe_port_param' to different enumeration type 'enum ib_mtu' [-Wenum-conversion] ib_mtu_enum_to_int(RXE_PORT_ACTIVE_MTU); ~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~~~~~~~~ 5 warnings generated. Use the appropriate values from the expected enumerated type so no conversion needs to happen then remove the unneeded definitions. Reported-by: Nick Desaulniers Signed-off-by: Nathan Chancellor --- v1 -> v2: * Don't cast, just use the expecting enumerated value directly, per Jason's request v2 -> v3: * Convert two spots from RXE_PORT_MAX_MTU to IB_MTU_4096 then remove value definitions. drivers/infiniband/sw/rxe/rxe.c | 13 ++++++------- drivers/infiniband/sw/rxe/rxe_loc.h | 2 +- drivers/infiniband/sw/rxe/rxe_param.h | 4 ---- 3 files changed, 7 insertions(+), 12 deletions(-) diff --git a/drivers/infiniband/sw/rxe/rxe.c b/drivers/infiniband/sw/rxe/rxe.c index 10999fa69281..383e65c7bbc0 100644 --- a/drivers/infiniband/sw/rxe/rxe.c +++ b/drivers/infiniband/sw/rxe/rxe.c @@ -103,7 +103,7 @@ static void rxe_init_device_param(struct rxe_dev *rxe) rxe->attr.max_res_rd_atom = RXE_MAX_RES_RD_ATOM; rxe->attr.max_qp_init_rd_atom = RXE_MAX_QP_INIT_RD_ATOM; rxe->attr.max_ee_init_rd_atom = RXE_MAX_EE_INIT_RD_ATOM; - rxe->attr.atomic_cap = RXE_ATOMIC_CAP; + rxe->attr.atomic_cap = IB_ATOMIC_HCA; rxe->attr.max_ee = RXE_MAX_EE; rxe->attr.max_rdd = RXE_MAX_RDD; rxe->attr.max_mw = RXE_MAX_MW; @@ -128,9 +128,9 @@ static void rxe_init_device_param(struct rxe_dev *rxe) /* initialize port attributes */ static int rxe_init_port_param(struct rxe_port *port) { - port->attr.state = RXE_PORT_STATE; - port->attr.max_mtu = RXE_PORT_MAX_MTU; - port->attr.active_mtu = RXE_PORT_ACTIVE_MTU; + port->attr.state = IB_PORT_DOWN; + port->attr.max_mtu = IB_MTU_4096; + port->attr.active_mtu = IB_MTU_256; port->attr.gid_tbl_len = RXE_PORT_GID_TBL_LEN; port->attr.port_cap_flags = RXE_PORT_PORT_CAP_FLAGS; port->attr.max_msg_sz = RXE_PORT_MAX_MSG_SZ; @@ -147,8 +147,7 @@ static int rxe_init_port_param(struct rxe_port *port) port->attr.active_width = RXE_PORT_ACTIVE_WIDTH; port->attr.active_speed = RXE_PORT_ACTIVE_SPEED; port->attr.phys_state = RXE_PORT_PHYS_STATE; - port->mtu_cap = - ib_mtu_enum_to_int(RXE_PORT_ACTIVE_MTU); + port->mtu_cap = ib_mtu_enum_to_int(IB_MTU_256); port->subnet_prefix = cpu_to_be64(RXE_PORT_SUBNET_PREFIX); return 0; @@ -300,7 +299,7 @@ void rxe_set_mtu(struct rxe_dev *rxe, unsigned int ndev_mtu) mtu = eth_mtu_int_to_enum(ndev_mtu); /* Make sure that new MTU in range */ - mtu = mtu ? min_t(enum ib_mtu, mtu, RXE_PORT_MAX_MTU) : IB_MTU_256; + mtu = mtu ? min_t(enum ib_mtu, mtu, IB_MTU_4096) : IB_MTU_256; port->attr.active_mtu = mtu; port->mtu_cap = ib_mtu_enum_to_int(mtu); diff --git a/drivers/infiniband/sw/rxe/rxe_loc.h b/drivers/infiniband/sw/rxe/rxe_loc.h index 8e305422adbb..afd53f57a62b 100644 --- a/drivers/infiniband/sw/rxe/rxe_loc.h +++ b/drivers/infiniband/sw/rxe/rxe_loc.h @@ -195,7 +195,7 @@ static inline int qp_mtu(struct rxe_qp *qp) if (qp->ibqp.qp_type == IB_QPT_RC || qp->ibqp.qp_type == IB_QPT_UC) return qp->attr.path_mtu; else - return RXE_PORT_MAX_MTU; + return IB_MTU_4096; } static inline int rcv_wqe_size(int max_sge) diff --git a/drivers/infiniband/sw/rxe/rxe_param.h b/drivers/infiniband/sw/rxe/rxe_param.h index 4555510d86c4..bdea899a58ac 100644 --- a/drivers/infiniband/sw/rxe/rxe_param.h +++ b/drivers/infiniband/sw/rxe/rxe_param.h @@ -90,7 +90,6 @@ enum rxe_device_param { RXE_MAX_RES_RD_ATOM = 0x3f000, RXE_MAX_QP_INIT_RD_ATOM = 128, RXE_MAX_EE_INIT_RD_ATOM = 0, - RXE_ATOMIC_CAP = 1, RXE_MAX_EE = 0, RXE_MAX_RDD = 0, RXE_MAX_MW = 0, @@ -139,9 +138,6 @@ enum rxe_device_param { /* default/initial rxe port parameters */ enum rxe_port_param { - RXE_PORT_STATE = IB_PORT_DOWN, - RXE_PORT_MAX_MTU = IB_MTU_4096, - RXE_PORT_ACTIVE_MTU = IB_MTU_256, RXE_PORT_GID_TBL_LEN = 1024, RXE_PORT_PORT_CAP_FLAGS = RDMA_CORE_CAP_PROT_ROCE_UDP_ENCAP, RXE_PORT_MAX_MSG_SZ = 0x800000, -- 2.19.0