IB/mad: Add const qualifiers to query only functions

The following functions only need read access to the data passed to them.

ib_mad_kernel_rmpp_agent
is_rmpp_data_mad
rcv_has_same_gid
ib_find_send_mad

Clarify with const specifiers

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index 0ae48d4..87e222e 100644 (file)
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -910,7 +910,7 @@ static int alloc_send_rmpp_list(struct ib_mad_send_wr_private *send_wr,
        return 0;
 }
 
-int ib_mad_kernel_rmpp_agent(struct ib_mad_agent *agent)
+int ib_mad_kernel_rmpp_agent(const struct ib_mad_agent *agent)
 {
        return agent->rmpp_version && !(agent->flags & IB_MAD_USER_RMPP);
 }
@@ -1734,8 +1734,8 @@ out:
        return valid;
 }
 
-static int is_rmpp_data_mad(struct ib_mad_agent_private *mad_agent_priv,
-                      struct ib_mad_hdr *mad_hdr)
+static int is_rmpp_data_mad(const struct ib_mad_agent_private *mad_agent_priv,
+                           const struct ib_mad_hdr *mad_hdr)
 {
        struct ib_rmpp_mad *rmpp_mad;
 
@@ -1754,9 +1754,9 @@ static inline int rcv_has_same_class(const struct ib_mad_send_wr_private *wr,
                rwc->recv_buf.mad->mad_hdr.mgmt_class;
 }
 
-static inline int rcv_has_same_gid(struct ib_mad_agent_private *mad_agent_priv,
-                                  struct ib_mad_send_wr_private *wr,
-                                  struct ib_mad_recv_wc *rwc )
+static inline int rcv_has_same_gid(const struct ib_mad_agent_private *mad_agent_priv,
+                                  const struct ib_mad_send_wr_private *wr,
+                                  const struct ib_mad_recv_wc *rwc )
 {
        struct ib_ah_attr attr;
        u8 send_resp, rcv_resp;
@@ -1811,8 +1811,8 @@ static inline int is_direct(u8 class)
 }
 
 struct ib_mad_send_wr_private*
-ib_find_send_mad(struct ib_mad_agent_private *mad_agent_priv,
-                struct ib_mad_recv_wc *wc)
+ib_find_send_mad(const struct ib_mad_agent_private *mad_agent_priv,
+                const struct ib_mad_recv_wc *wc)
 {
        struct ib_mad_send_wr_private *wr;
        struct ib_mad *mad;

diff --git a/drivers/infiniband/core/mad_priv.h b/drivers/infiniband/core/mad_priv.h
index d1a0b0e..7b19cba 100644 (file)
--- a/drivers/infiniband/core/mad_priv.h
+++ b/drivers/infiniband/core/mad_priv.h
@@ -213,8 +213,8 @@ struct ib_mad_port_private {
 int ib_send_mad(struct ib_mad_send_wr_private *mad_send_wr);
 
 struct ib_mad_send_wr_private *
-ib_find_send_mad(struct ib_mad_agent_private *mad_agent_priv,
-                struct ib_mad_recv_wc *mad_recv_wc);
+ib_find_send_mad(const struct ib_mad_agent_private *mad_agent_priv,
+                const struct ib_mad_recv_wc *mad_recv_wc);
 
 void ib_mad_complete_send_wr(struct ib_mad_send_wr_private *mad_send_wr,
                             struct ib_mad_send_wc *mad_send_wc);

diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h
index 69e3c45..c0ea51f 100644 (file)
--- a/include/rdma/ib_mad.h
+++ b/include/rdma/ib_mad.h
@@ -675,6 +675,6 @@ void ib_free_send_mad(struct ib_mad_send_buf *send_buf);
  * @agent: the agent in question
  * @return: true if agent is performing rmpp, false otherwise.
  */
-int ib_mad_kernel_rmpp_agent(struct ib_mad_agent *agent);
+int ib_mad_kernel_rmpp_agent(const struct ib_mad_agent *agent);
 
 #endif /* IB_MAD_H */