dmaengine: ioat: remove unused ‘ioat_dma’

In ioat_tx_submit_unlock(), variable ‘ioat_dma’ is initialized but never
used, which leads to warning with W=1

drivers/dma/ioat/dma.c: In function ‘ioat_alloc_ring_ent’:
drivers/dma/ioat/dma.c:341:25: warning: variable ‘ioat_dma’ set but not used [-Wunused-but-set-variable]
  struct ioatdma_device *ioat_dma;

So remove it.

Cc: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 49386ce04bf5..1350b880bc0d 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -341,15 +341,12 @@ ioat_alloc_ring_ent(struct dma_chan *chan, int idx, gfp_t flags)
 {
         struct ioat_dma_descriptor *hw;
         struct ioat_ring_ent *desc;
-        struct ioatdma_device *ioat_dma;
         struct ioatdma_chan *ioat_chan = to_ioat_chan(chan);
         int chunk;
         dma_addr_t phys;
         u8 *pos;
         off_t offs;
 
-        ioat_dma = to_ioatdma_device(chan->device);
-
         chunk = idx / IOAT_DESCS_PER_2M;
         idx &= (IOAT_DESCS_PER_2M - 1);
         offs = idx * IOAT_DESC_SZ;