dmaengine: idxd: Remove shadow Event Log head stored in idxd

[linux-2.6-microblaze.git] / drivers / dma / idxd / irq.c

diff --git a/drivers/dma/idxd/irq.c b/drivers/dma/idxd/irq.c
index c8a0aa8..348aa21 100644 (file)
--- a/drivers/dma/idxd/irq.c
+++ b/drivers/dma/idxd/irq.c
@@ -367,9 +367,9 @@ static void process_evl_entries(struct idxd_device *idxd)
        /* Clear interrupt pending bit */
        iowrite32(evl_status.bits_upper32,
                  idxd->reg_base + IDXD_EVLSTATUS_OFFSET + sizeof(u32));
-       h = evl->head;
        evl_status.bits = ioread64(idxd->reg_base + IDXD_EVLSTATUS_OFFSET);
        t = evl_status.tail;
+       h = evl_status.head;
        size = idxd->evl->size;
 
        while (h != t) {
@@ -378,7 +378,6 @@ static void process_evl_entries(struct idxd_device *idxd)
                h = (h + 1) % size;
        }
 
-       evl->head = h;
        evl_status.head = h;
        iowrite32(evl_status.bits_lower32, idxd->reg_base + IDXD_EVLSTATUS_OFFSET);
        spin_unlock(&evl->lock);