diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index ad499bd..f19739a 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1831,22 +1831,22 @@ static inline u8 rdma_end_port(const struct ib_device *device)
 		0 : device->phys_port_cnt;
 }
 
-static inline bool rdma_protocol_ib(struct ib_device *device, u8 port_num)
+static inline bool rdma_protocol_ib(const struct ib_device *device, u8 port_num)
 {
 	return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_IB;
 }
 
-static inline bool rdma_protocol_roce(struct ib_device *device, u8 port_num)
+static inline bool rdma_protocol_roce(const struct ib_device *device, u8 port_num)
 {
 	return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_ROCE;
 }
 
-static inline bool rdma_protocol_iwarp(struct ib_device *device, u8 port_num)
+static inline bool rdma_protocol_iwarp(const struct ib_device *device, u8 port_num)
 {
 	return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_IWARP;
 }
 
-static inline bool rdma_ib_or_roce(struct ib_device *device, u8 port_num)
+static inline bool rdma_ib_or_roce(const struct ib_device *device, u8 port_num)
 {
 	return device->port_immutable[port_num].core_cap_flags &
 		(RDMA_CORE_CAP_PROT_IB | RDMA_CORE_CAP_PROT_ROCE);
@@ -1864,7 +1864,7 @@ static inline bool rdma_ib_or_roce(struct ib_device *device, u8 port_num)
  *
  * Return: true if the port supports sending/receiving of MAD packets.
  */
-static inline bool rdma_cap_ib_mad(struct ib_device *device, u8 port_num)
+static inline bool rdma_cap_ib_mad(const struct ib_device *device, u8 port_num)
 {
 	return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_MAD;
 }
@@ -1889,7 +1889,7 @@ static inline bool rdma_cap_ib_mad(struct ib_device *device, u8 port_num)
  *
  * Return: true if the port provides an SMI.
  */
-static inline bool rdma_cap_ib_smi(struct ib_device *device, u8 port_num)
+static inline bool rdma_cap_ib_smi(const struct ib_device *device, u8 port_num)
 {
 	return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_SMI;
 }
@@ -1909,7 +1909,7 @@ static inline bool rdma_cap_ib_smi(struct ib_device *device, u8 port_num)
  * Return: true if the port supports an IB CM (this does not guarantee that
  * a CM is actually running however).
  */
-static inline bool rdma_cap_ib_cm(struct ib_device *device, u8 port_num)
+static inline bool rdma_cap_ib_cm(const struct ib_device *device, u8 port_num)
 {
 	return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_CM;
 }
@@ -1926,7 +1926,7 @@ static inline bool rdma_cap_ib_cm(struct ib_device *device, u8 port_num)
  * Return: true if the port supports an iWARP CM (this does not guarantee that
  * a CM is actually running however).
  */
-static inline bool rdma_cap_iw_cm(struct ib_device *device, u8 port_num)
+static inline bool rdma_cap_iw_cm(const struct ib_device *device, u8 port_num)
 {
 	return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IW_CM;
 }
@@ -1946,7 +1946,7 @@ static inline bool rdma_cap_iw_cm(struct ib_device *device, u8 port_num)
  * Administration interface.  This does not imply that the SA service is
  * running locally.
  */
-static inline bool rdma_cap_ib_sa(struct ib_device *device, u8 port_num)
+static inline bool rdma_cap_ib_sa(const struct ib_device *device, u8 port_num)
 {
 	return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_IB_SA;
 }
@@ -1968,7 +1968,7 @@ static inline bool rdma_cap_ib_sa(struct ib_device *device, u8 port_num)
  * overhead of registering/unregistering with the SM and tracking of the
  * total number of queue pairs attached to the multicast group.
  */
-static inline bool rdma_cap_ib_mcast(struct ib_device *device, u8 port_num)
+static inline bool rdma_cap_ib_mcast(const struct ib_device *device, u8 port_num)
 {
 	return rdma_cap_ib_sa(device, port_num);
 }
@@ -1986,7 +1986,7 @@ static inline bool rdma_cap_ib_mcast(struct ib_device *device, u8 port_num)
  * Return: true if the port uses a GID address to identify devices on the
  * network.
  */
-static inline bool rdma_cap_af_ib(struct ib_device *device, u8 port_num)
+static inline bool rdma_cap_af_ib(const struct ib_device *device, u8 port_num)
 {
 	return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_AF_IB;
 }
@@ -2007,7 +2007,7 @@ static inline bool rdma_cap_af_ib(struct ib_device *device, u8 port_num)
  * addition of a Global Route Header built from our Ethernet Address
  * Handle into our header list for connectionless packets.
  */
-static inline bool rdma_cap_eth_ah(struct ib_device *device, u8 port_num)
+static inline bool rdma_cap_eth_ah(const struct ib_device *device, u8 port_num)
 {
 	return device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_ETH_AH;
 }
