async_tx: rename zero_sum to val

'zero_sum' does not properly describe the operation of generating parity
and checking that it validates against an existing buffer.  Change the
name of the operation to 'val' (for 'validate').  This is in
anticipation of the p+q case where it is a requirement to identify the
target parity buffers separately from the source buffers, because the
target parity buffers will not have corresponding pq coefficients.

Reviewed-by: Andre Noll <maan@systemlinux.org>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 92438e9dacc3..6781e8f3c064 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -644,8 +644,8 @@ int dma_async_device_register(struct dma_device *device)
                 !device->device_prep_dma_memcpy);
         BUG_ON(dma_has_cap(DMA_XOR, device->cap_mask) &&
                 !device->device_prep_dma_xor);
-        BUG_ON(dma_has_cap(DMA_ZERO_SUM, device->cap_mask) &&
-                !device->device_prep_dma_zero_sum);
+        BUG_ON(dma_has_cap(DMA_XOR_VAL, device->cap_mask) &&
+                !device->device_prep_dma_xor_val);
         BUG_ON(dma_has_cap(DMA_MEMSET, device->cap_mask) &&
                 !device->device_prep_dma_memset);
         BUG_ON(dma_has_cap(DMA_INTERRUPT, device->cap_mask) &&