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, 1 insertions, 1 deletions

diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h
index 5fc2ef8d97fa..513150d8c25b 100644
--- a/include/linux/async_tx.h
+++ b/include/linux/async_tx.h
@@ -117,7 +117,7 @@ async_xor(struct page *dest, struct page **src_list, unsigned int offset,
         dma_async_tx_callback cb_fn, void *cb_fn_param);
 
 struct dma_async_tx_descriptor *
-async_xor_zero_sum(struct page *dest, struct page **src_list,
+async_xor_val(struct page *dest, struct page **src_list,
         unsigned int offset, int src_cnt, size_t len,
         u32 *result, enum async_tx_flags flags,
         struct dma_async_tx_descriptor *depend_tx,