From 96909308542006215980874ce496101ea51aa031 Mon Sep 17 00:00:00 2001 From: Ira Weiny Date: Fri, 8 May 2015 14:27:22 -0400 Subject: [PATCH] IB/mad: Change ib_response_mad signature arguments ib_response_mad only needs read access to the MAD header, not write access to the entire mad struct, so replace struct ib_mad with const struct ib_mad_hdr Reviewed-By: Jason Gunthorpe Reviewed-by: Sean Hefty Signed-off-by: Ira Weiny Signed-off-by: Doug Ledford --- drivers/infiniband/core/mad.c | 20 ++++++++++---------- drivers/infiniband/core/user_mad.c | 6 +++--- include/rdma/ib_mad.h | 2 +- 3 files changed, 14 insertions(+), 14 deletions(-) diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 23d40c28d484..b902d8da9d16 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -179,12 +179,12 @@ static int is_vendor_method_in_use( return 0; } -int ib_response_mad(struct ib_mad *mad) +int ib_response_mad(const struct ib_mad_hdr *hdr) { - return ((mad->mad_hdr.method & IB_MGMT_METHOD_RESP) || - (mad->mad_hdr.method == IB_MGMT_METHOD_TRAP_REPRESS) || - ((mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_BM) && - (mad->mad_hdr.attr_mod & IB_BM_ATTR_MOD_RESP))); + return ((hdr->method & IB_MGMT_METHOD_RESP) || + (hdr->method == IB_MGMT_METHOD_TRAP_REPRESS) || + ((hdr->mgmt_class == IB_MGMT_CLASS_BM) && + (hdr->attr_mod & IB_BM_ATTR_MOD_RESP))); } EXPORT_SYMBOL(ib_response_mad); @@ -791,7 +791,7 @@ static int handle_outgoing_dr_smp(struct ib_mad_agent_private *mad_agent_priv, switch (ret) { case IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY: - if (ib_response_mad(&mad_priv->mad.mad) && + if (ib_response_mad(&mad_priv->mad.mad.mad_hdr) && mad_agent_priv->agent.recv_handler) { local->mad_priv = mad_priv; local->recv_mad_agent = mad_agent_priv; @@ -1628,7 +1628,7 @@ find_mad_agent(struct ib_mad_port_private *port_priv, unsigned long flags; spin_lock_irqsave(&port_priv->reg_lock, flags); - if (ib_response_mad(mad)) { + if (ib_response_mad(&mad->mad_hdr)) { u32 hi_tid; struct ib_mad_agent_private *entry; @@ -1765,8 +1765,8 @@ static inline int rcv_has_same_gid(struct ib_mad_agent_private *mad_agent_priv, u8 port_num = mad_agent_priv->agent.port_num; u8 lmc; - send_resp = ib_response_mad((struct ib_mad *)wr->send_buf.mad); - rcv_resp = ib_response_mad(rwc->recv_buf.mad); + send_resp = ib_response_mad((struct ib_mad_hdr *)wr->send_buf.mad); + rcv_resp = ib_response_mad(&rwc->recv_buf.mad->mad_hdr); if (send_resp == rcv_resp) /* both requests, or both responses. GIDs different */ @@ -1879,7 +1879,7 @@ static void ib_mad_complete_recv(struct ib_mad_agent_private *mad_agent_priv, } /* Complete corresponding request */ - if (ib_response_mad(mad_recv_wc->recv_buf.mad)) { + if (ib_response_mad(&mad_recv_wc->recv_buf.mad->mad_hdr)) { spin_lock_irqsave(&mad_agent_priv->lock, flags); mad_send_wr = ib_find_send_mad(mad_agent_priv, mad_recv_wc); if (!mad_send_wr) { diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index 928cdd20e2d1..66b5217841be 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -426,11 +426,11 @@ static int is_duplicate(struct ib_umad_file *file, * the same TID, reject the second as a duplicate. This is more * restrictive than required by the spec. */ - if (!ib_response_mad((struct ib_mad *) hdr)) { - if (!ib_response_mad((struct ib_mad *) sent_hdr)) + if (!ib_response_mad(hdr)) { + if (!ib_response_mad(sent_hdr)) return 1; continue; - } else if (!ib_response_mad((struct ib_mad *) sent_hdr)) + } else if (!ib_response_mad(sent_hdr)) continue; if (same_destination(&packet->mad.hdr, &sent_packet->mad.hdr)) diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h index 9bb99e983f58..69e3c45e7d46 100644 --- a/include/rdma/ib_mad.h +++ b/include/rdma/ib_mad.h @@ -263,7 +263,7 @@ struct ib_mad_send_buf { * ib_response_mad - Returns if the specified MAD has been generated in * response to a sent request or trap. */ -int ib_response_mad(struct ib_mad *mad); +int ib_response_mad(const struct ib_mad_hdr *hdr); /** * ib_get_rmpp_resptime - Returns the RMPP response time. -- GitLab