diff mbox series

[12/16] hw/block/nvme: refactor NvmeRequest clearing

Message ID 20200720113748.322965-13-its@irrelevant.dk
State New
Headers show
Series [01/16] hw/block/nvme: memset preallocated requests structures | expand

Commit Message

Klaus Jensen July 20, 2020, 11:37 a.m. UTC 
From: Klaus Jensen <k.jensen@samsung.com>

Move clearing of the structure from "clear before use" to "clear
after use".

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
---
 hw/block/nvme.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index e2932239c661..431f26c2f589 100644
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -209,6 +209,11 @@  static void nvme_irq_deassert(NvmeCtrl *n, NvmeCQueue *cq)
     }
 }
 
+static void nvme_req_clear(NvmeRequest *req)
+{
+    memset(&req->cqe, 0x0, sizeof(req->cqe));
+}
+
 static uint16_t nvme_map_addr_cmb(NvmeCtrl *n, QEMUIOVector *iov, hwaddr addr,
                                   size_t len)
 {
@@ -458,6 +463,7 @@  static void nvme_post_cqes(void *opaque)
         nvme_inc_cq_tail(cq);
         pci_dma_write(&n->parent_obj, addr, (void *)&req->cqe,
             sizeof(req->cqe));
+        nvme_req_clear(req);
         QTAILQ_INSERT_TAIL(&sq->req_list, req, entry);
     }
     if (cq->tail != cq->head) {
@@ -1601,7 +1607,6 @@  static void nvme_process_sq(void *opaque)
         req = QTAILQ_FIRST(&sq->req_list);
         QTAILQ_REMOVE(&sq->req_list, req, entry);
         QTAILQ_INSERT_TAIL(&sq->out_req_list, req, entry);
-        memset(&req->cqe, 0, sizeof(req->cqe));
         req->cqe.cid = cmd.cid;
 
         status = sq->sqid ? nvme_io_cmd(n, &cmd, req) :