IB/hfi1: Remove redundant variable rcd

The variable rcd is being assigned a value from a calculation however the
variable is never read, so this redundant variable can be removed.

Cleans up the following clang-analyzer warning:

drivers/infiniband/hw/hfi1/affinity.c:986:3: warning: Value stored to
'rcd' is never read [clang-analyzer-deadcode.DeadStores].

Link: https://lore.kernel.org/r/1619346696-46300-1-git-send-email-jiapeng.chong@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

diff --git a/drivers/infiniband/hw/hfi1/affinity.c b/drivers/infiniband/hw/hfi1/affinity.c
index 2a91b8d..f298bd2 100644 (file)
--- a/drivers/infiniband/hw/hfi1/affinity.c
+++ b/drivers/infiniband/hw/hfi1/affinity.c
@@ -973,7 +973,6 @@ void hfi1_put_irq_affinity(struct hfi1_devdata *dd,
                           struct hfi1_msix_entry *msix)
 {
        struct cpu_mask_set *set = NULL;
-       struct hfi1_ctxtdata *rcd;
        struct hfi1_affinity_node *entry;
 
        mutex_lock(&node_affinity.lock);
@@ -987,14 +986,15 @@ void hfi1_put_irq_affinity(struct hfi1_devdata *dd,
        case IRQ_GENERAL:
                /* Don't do accounting for general contexts */
                break;
-       case IRQ_RCVCTXT:
-               rcd = (struct hfi1_ctxtdata *)msix->arg;
+       case IRQ_RCVCTXT: {
+               struct hfi1_ctxtdata *rcd = msix->arg;
+
                /* Don't do accounting for control contexts */
                if (rcd->ctxt != HFI1_CTRL_CTXT)
                        set = &entry->rcv_intr;
                break;
+       }
        case IRQ_NETDEVCTXT:
-               rcd = (struct hfi1_ctxtdata *)msix->arg;
                set = &entry->def_intr;
                break;
        default: