dmaengine: bcm-sba-raid: Remove reqs_free_count from sba_device

The reqs_free_count member of sba_device is not used anywhere
hence no point in tracking number of free sba_request.

Signed-off-by: Anup Patel <anup.patel@broadcom.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/bcm-sba-raid.c b/drivers/dma/bcm-sba-raid.c
index 9d3ed92..fdc9891 100644 (file)
--- a/drivers/dma/bcm-sba-raid.c
+++ b/drivers/dma/bcm-sba-raid.c
@@ -162,7 +162,6 @@ struct sba_device {
        struct list_head reqs_completed_list;
        struct list_head reqs_aborted_list;
        struct list_head reqs_free_list;
-       int reqs_free_count;
 };
 
 /* ====== Command helper routines ===== */
@@ -207,10 +206,8 @@ static struct sba_request *sba_alloc_request(struct sba_device *sba)
        spin_lock_irqsave(&sba->reqs_lock, flags);
        req = list_first_entry_or_null(&sba->reqs_free_list,
                                       struct sba_request, node);
-       if (req) {
+       if (req)
                list_move_tail(&req->node, &sba->reqs_alloc_list);
-               sba->reqs_free_count--;
-       }
        spin_unlock_irqrestore(&sba->reqs_lock, flags);
        if (!req)
                return NULL;
@@ -276,7 +273,6 @@ static void _sba_free_request(struct sba_device *sba,
        list_move_tail(&req->node, &sba->reqs_free_list);
        if (list_empty(&sba->reqs_active_list))
                sba->reqs_fence = false;
-       sba->reqs_free_count++;
 }
 
 static void sba_received_request(struct sba_request *req)
@@ -1523,8 +1519,6 @@ static int sba_prealloc_channel_resources(struct sba_device *sba)
                list_add_tail(&req->node, &sba->reqs_free_list);
        }
 
-       sba->reqs_free_count = sba->max_req;
-
        return 0;
 
 fail_free_cmds_pool: