[PATCH -next] scsi: qla2xxx: Remove set but not used variable 'ptr_dma'

[YueHaibing]

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/scsi/qla2xxx/qla_iocb.c: In function 'qla24xx_els_dcmd2_iocb':
drivers/scsi/qla2xxx/qla_iocb.c:2644:13: warning:
 variable 'ptr_dma' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/scsi/qla2xxx/qla_iocb.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 4de9102..86fb8b2 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -2641,7 +2641,6 @@ struct fw_dif_context {
        struct qla_hw_data *ha = vha->hw;
        int rval = QLA_SUCCESS;
        void    *ptr, *resp_ptr;
-       dma_addr_t ptr_dma;
 
        /* Alloc SRB structure */
        sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
@@ -2673,7 +2672,6 @@ struct fw_dif_context {
        ptr = elsio->u.els_plogi.els_plogi_pyld =
            dma_alloc_coherent(&ha->pdev->dev, DMA_POOL_SIZE,
                &elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL);
-       ptr_dma = elsio->u.els_plogi.els_plogi_pyld_dma;
 
        if (!elsio->u.els_plogi.els_plogi_pyld) {
                rval = QLA_FUNCTION_FAILED;