dmaengine: img-mdc: remove unused ‘prev_phys’

In mdc_prep_dma_memcpy(), mdc_prep_dma_cyclic() and mdc_prep_slave_sg()
variable ‘prev_phys’ is initialized but never used, which
leads to warning with W=1

drivers/dma/img-mdc-dma.c: In function ‘mdc_prep_dma_memcpy’:
drivers/dma/img-mdc-dma.c:295:24: warning: variable ‘prev_phys’ set but not used [-Wunused-but-set-variable]
  dma_addr_t curr_phys, prev_phys;

drivers/dma/img-mdc-dma.c: In function ‘mdc_prep_dma_cyclic’:
drivers/dma/img-mdc-dma.c:378:24: warning: variable ‘prev_phys’ set but not used [-Wunused-but-set-variable]
  dma_addr_t curr_phys, prev_phys;

drivers/dma/img-mdc-dma.c: In function ‘mdc_prep_slave_sg’:
drivers/dma/img-mdc-dma.c:461:24: warning: variable ‘prev_phys’ set but not
used [-Wunused-but-set-variable]
  dma_addr_t curr_phys, prev_phys;

So remove it.

Cc: Damien.Horsley <Damien.Horsley@imgtec.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/img-mdc-dma.c b/drivers/dma/img-mdc-dma.c
index 624f1e1..54db141 100644 (file)
--- a/drivers/dma/img-mdc-dma.c
+++ b/drivers/dma/img-mdc-dma.c
@@ -292,7 +292,7 @@ static struct dma_async_tx_descriptor *mdc_prep_dma_memcpy(
        struct mdc_dma *mdma = mchan->mdma;
        struct mdc_tx_desc *mdesc;
        struct mdc_hw_list_desc *curr, *prev = NULL;
-       dma_addr_t curr_phys, prev_phys;
+       dma_addr_t curr_phys;
 
        if (!len)
                return NULL;
@@ -324,7 +324,6 @@ static struct dma_async_tx_descriptor *mdc_prep_dma_memcpy(
                                     xfer_size);
 
                prev = curr;
-               prev_phys = curr_phys;
 
                mdesc->list_len++;
                src += xfer_size;
@@ -375,7 +374,7 @@ static struct dma_async_tx_descriptor *mdc_prep_dma_cyclic(
        struct mdc_dma *mdma = mchan->mdma;
        struct mdc_tx_desc *mdesc;
        struct mdc_hw_list_desc *curr, *prev = NULL;
-       dma_addr_t curr_phys, prev_phys;
+       dma_addr_t curr_phys;
 
        if (!buf_len && !period_len)
                return NULL;
@@ -430,7 +429,6 @@ static struct dma_async_tx_descriptor *mdc_prep_dma_cyclic(
                        }
 
                        prev = curr;
-                       prev_phys = curr_phys;
 
                        mdesc->list_len++;
                        buf_addr += xfer_size;
@@ -458,7 +456,7 @@ static struct dma_async_tx_descriptor *mdc_prep_slave_sg(
        struct mdc_tx_desc *mdesc;
        struct scatterlist *sg;
        struct mdc_hw_list_desc *curr, *prev = NULL;
-       dma_addr_t curr_phys, prev_phys;
+       dma_addr_t curr_phys;
        unsigned int i;
 
        if (!sgl)
@@ -509,7 +507,6 @@ static struct dma_async_tx_descriptor *mdc_prep_slave_sg(
                        }
 
                        prev = curr;
-                       prev_phys = curr_phys;
 
                        mdesc->list_len++;
                        mdesc->list_xfer_size += xfer_size;