net: ethernet: cavium: liquidio: request_manager: Remove create_workqueue

alloc_workqueue replaces deprecated create_workqueue().

A dedicated workqueue has been used since the workitem viz
(&db_wq->wk.work which maps to check_db_timeout) is involved
in normal device operation. WQ_MEM_RECLAIM has been set to guarantee
forward progress under memory pressure, which is a requirement here.
Since there are only a fixed number of work items, explicit concurrency
limit is unnecessary.

flush_workqueue is unnecessary since destroy_workqueue() itself calls
drain_workqueue() which flushes repeatedly till the workqueue
becomes empty.

Signed-off-by: Bhaktipriya Shridhar <bhaktipriya96@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/cavium/liquidio/request_manager.c b/drivers/net/ethernet/cavium/liquidio/request_manager.c
index a2a2465..9313915 100644 (file)
--- a/drivers/net/ethernet/cavium/liquidio/request_manager.c
+++ b/drivers/net/ethernet/cavium/liquidio/request_manager.c
@@ -144,7 +144,9 @@ int octeon_init_instr_queue(struct octeon_device *oct,
 
        oct->fn_list.setup_iq_regs(oct, iq_no);
 
-       oct->check_db_wq[iq_no].wq = create_workqueue("check_iq_db");
+       oct->check_db_wq[iq_no].wq = alloc_workqueue("check_iq_db",
+                                                    WQ_MEM_RECLAIM,
+                                                    0);
        if (!oct->check_db_wq[iq_no].wq) {
                lio_dma_free(oct, q_size, iq->base_addr, iq->base_addr_dma);
                dev_err(&oct->pci_dev->dev, "check db wq create failed for iq %d\n",
@@ -168,7 +170,6 @@ int octeon_delete_instr_queue(struct octeon_device *oct, u32 iq_no)
        struct octeon_instr_queue *iq = oct->instr_queue[iq_no];
 
        cancel_delayed_work_sync(&oct->check_db_wq[iq_no].wk.work);
-       flush_workqueue(oct->check_db_wq[iq_no].wq);
        destroy_workqueue(oct->check_db_wq[iq_no].wq);
 
        if (OCTEON_CN6XXX(oct))