net/ice/base: remove unused struct member

The only time you can ever have a rq_last_status is if
a firmware event was somehow reporting a status on the receive
queue, which are generally firmware initiated events or
mailbox messages from a VF.  Mostly this struct member was unused.

Fix this problem by still printing the value of the field in a debug
print, but don't store the value forever in a struct, potentially
creating opportunities for callers to use the wrong struct member.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Acked-by: Qiming Yang <qiming.yang@intel.com>

diff --git a/drivers/net/ice/base/ice_controlq.c b/drivers/net/ice/base/ice_controlq.c
index 4c4f925..59e7c5f 100644 (file)
--- a/drivers/net/ice/base/ice_controlq.c
+++ b/drivers/net/ice/base/ice_controlq.c
@@ -1110,6 +1110,7 @@ ice_clean_rq_elem(struct ice_hw *hw, struct ice_ctl_q_info *cq,
                  struct ice_rq_event_info *e, u16 *pending)
 {
        u16 ntc = cq->rq.next_to_clean;
+       enum ice_aq_err rq_last_status;
        enum ice_status ret_code = ICE_SUCCESS;
        struct ice_aq_desc *desc;
        struct ice_dma_mem *bi;
@@ -1143,13 +1144,12 @@ ice_clean_rq_elem(struct ice_hw *hw, struct ice_ctl_q_info *cq,
        desc = ICE_CTL_Q_DESC(cq->rq, ntc);
        desc_idx = ntc;
 
-       cq->rq_last_status = (enum ice_aq_err)LE16_TO_CPU(desc->retval);
+       rq_last_status = (enum ice_aq_err)LE16_TO_CPU(desc->retval);
        flags = LE16_TO_CPU(desc->flags);
        if (flags & ICE_AQ_FLAG_ERR) {
                ret_code = ICE_ERR_AQ_ERROR;
                ice_debug(hw, ICE_DBG_AQ_MSG, "Control Receive Queue Event 0x%04X received with error 0x%X\n",
-                         LE16_TO_CPU(desc->opcode),
-                         cq->rq_last_status);
+                         LE16_TO_CPU(desc->opcode), rq_last_status);
        }
        ice_memcpy(&e->desc, desc, sizeof(e->desc), ICE_DMA_TO_NONDMA);
        datalen = LE16_TO_CPU(desc->datalen);

diff --git a/drivers/net/ice/base/ice_controlq.h b/drivers/net/ice/base/ice_controlq.h
index 84c114f..161c1be 100644 (file)
--- a/drivers/net/ice/base/ice_controlq.h
+++ b/drivers/net/ice/base/ice_controlq.h
@@ -84,7 +84,6 @@ struct ice_rq_event_info {
 /* Control Queue information */
 struct ice_ctl_q_info {
        enum ice_ctl_q qtype;
-       enum ice_aq_err rq_last_status; /* last status on receive queue */
        struct ice_ctl_q_ring rq;       /* receive queue */
        struct ice_ctl_q_ring sq;       /* send queue */
        u32 sq_cmd_timeout;             /* send queue cmd write back timeout */